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Find cheap flights to Washington Dulles Airport from S$ 914

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 14-5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
Sun 19-5
Sun 26-5

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
In the last 7 days, travellers have searched 44,553,814 times on KAYAK, and here's why:

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Cheap flight deals to Dulles Intl

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
01:50 - 23:37SIN-IAD
33h 47m2 stops
06:00 - 06:15IAD-SIN
36h 15m2 stops
S$ 1,495American Airlines
Find Deal
Tue, 14 May - Sun, 14 Jul
01:50 - 23:37SIN-IAD
33h 47m2 stops
06:00 - 06:15IAD-SIN
36h 15m2 stops
S$ 1,498American Airlines
Find Deal
Tue, 14 May - Sun, 14 Jul
23:00 - 07:15SIN-IAD
44h 15m1 stop
11:15 - 21:45IAD-SIN
22h 30m1 stop
S$ 1,597Air India
Find Deal
Wed, 22 May - Wed, 12 Jun
23:00 - 07:15SIN-IAD
44h 15m1 stop
11:15 - 21:45IAD-SIN
22h 30m1 stop
S$ 1,667Air India
Find Deal
Wed, 15 May - Sun, 14 Jul
21:00 - 11:26SIN-IAD
26h 26m2 stops
22:05 - 18:45IAD-SIN
32h 40m1 stop
S$ 1,701United Airlines
Find Deal
Wed, 15 May - Sun, 14 Jul
21:00 - 19:35SIN-IAD
34h 35m2 stops
22:05 - 18:45IAD-SIN
32h 40m1 stop
S$ 1,703United Airlines
Find Deal
Wed, 15 May - Sun, 14 Jul
23:25 - 13:30SIN-IAD
26h 05m2 stops
22:10 - 16:20IAD-SIN
30h 10m1 stop
S$ 1,891Lufthansa
Find Deal
Mon, 20 May - Fri, 21 Jun
23:25 - 15:15SIN-IAD
27h 50m2 stops
22:10 - 16:35IAD-SIN
30h 25m2 stops
S$ 2,035Lufthansa
Find Deal
Wed, 22 May - Wed, 12 Jun
01:10 - 11:15SIN-IAD
22h 05m1 stop
13:40 - 05:00IAD-SIN
27h 20m1 stop
S$ 2,152Korean Air
Find Deal
Tue, 14 May - Sun, 14 Jul
01:10 - 11:15SIN-IAD
22h 05m1 stop
10:05 - 23:40IAD-SIN
25h 35m2 stops
S$ 2,322Korean Air
Find Deal
Tue, 14 May - Sun, 14 Jul

Flights to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Washington, D.C.?

The average price of all flights to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Sunday where tickets can be as cheap as S$ 1,800. On the other hand, the most expensive day to fly is Friday, where prices are S$ 2,251 on average.

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Washington, D.C. Dulles Intl Airport is January, where tickets cost S$ 1,522 on average for one-way flights. On the other hand, the most expensive months are December and August, where the average cost of tickets from Singapore is S$ 2,322 and S$ 2,268 respectively. For return trips, the best month to travel is January with an average price of S$ 1,522.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

The average price for all flights to Washington, D.C. Dulles Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, when flights cost S$ 1,714 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally at night, which is peak travel time and where the average cost of a ticket is S$ 2,057.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 54 days before departure.

How long is the flight to Washington, D.C. Dulles Intl Airport?

The duration of your flight to Washington, D.C. depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to Washington, D.C. on KAYAK is from Singapore, which takes 34h 15m.

Good to know

Low season

January

High season

May

Cheapest flight

S$ 914
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from Singapore to Washington Dulles Airport

When to book flights to Dulles Intl

Are your dates flexible? Find out the best times to travel to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Washington, D.C. based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Washington Dulles Airport flights

  • How far is Washington Dulles Airport from central Washington, D.C.?

    There are 36 km between Washington, D.C. city centre and Washington Dulles Airport.

  • How does KAYAK find such low prices on flights to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington Dulles Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airline offers the most flights to Washington, D.C. Dulles Intl Airport?

    Of the 8 airlines that fly to Washington, D.C. Dulles Intl Airport, United Airlines offers the most flights, with around 1,641 per week, followed by Delta with 240 flights per week.

See more FAQs

Top tips for finding cheap flights to Washington Dulles Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Prefer to fly direct to Washington, D.C. Dulles Intl?

Find which airlines fly direct to Dulles Intl, which days they fly and book direct flights.

Direct departures

Singapore to Washington, D.C. Dulles Intl

Monday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Thursday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Friday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Saturday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Singapore

Monday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Tuesday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Wednesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Thursday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Friday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Saturday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights
See more direct flights

Top 5 airlines flying to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Singapore to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.5
Korean AirOverall score based on 1198 reviews
8.2entertainment
8.8crew
8.6boarding
8.2food
8.3comfort
Airline reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

10.0 ExcellentAnonymous, Apr 2024ICN - SGN
Read more about Korean Air reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

Not very comfortable seated in the back plane due to turbulence

Ford not that great the seat not to big for leg room like other airline

It was ok. Not good and not a bad experience

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

I like your stewardess, they are nice. However, your food could have been better and wheres your dessert? You do not offer beer or scotch. I do not drink alcohol biut my husband can have one or two, he has to ask if he can have one. during dinner or lunch, it should be offerred. Also, you do not have the most famous drinks ginger ale

Not accommodating ground staff On board slow service Crew members not very friendly

lunch was good; breakfast was kinda meh cabin temprature was way too high new entertainment system but somewhat limited content

My flight was diverted to Atlanta and I was not given enough time. I paid my travel on April 23, 2023. It was originally Delta from Norfolk to NY, then Korean Air from NY all the way Philippines which is my final stop. Instead from Atlanta to Korea I flew Delta which is okay. Then Korea to Philippines, I flew Asiana Airlines. What I did not like, Ieagle did not sent me an email that my flight was change and so when I went to check in Wednesday the 10th, at 4:30 a.m they told me my flight was delayed at 6;00 p.m and diverted in Atlanta and I am flying Asiana from Korea to Philippines. I do not appreciate that Kayak or Ieagle chenge our flights 5 times and then last minute change again during my day of flight. I hope that you will not make any changes of my flight o Feb 15th because it has to be the same flight with my husband. That is the reason why we made the arrangements early on.

Going through security a second time to get on the next Korean Air flight was utterly ridiculous and unnecessary. We were in a International secure area.

More facilities to transport to the gates......felt too much walking distance

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

It was good no problems made it on time for the next flight overseas!

It was a really long flight from Doha to Philadelphia and it was overall a good one. The one area that I would comment on is that there is a lot of single-use plastic and disposables in the meal service for American Airlines. It would be great to see more circular options in the meal service to reduce the amount of waste.

Suddenly Flight has been change by Qatar and there’s no information is there of us from Bom to Doha and counter person is behaving like Qatar owner next I will not buy Qatar and I will not suggest anyone to fly in Qatar

The crew was fantastic and the over flight was perfect as well.

They shld provide food. Between food they are giving 10 hours gap which is toooo much

The crew was great and the food and liquor offerings were good. Seats were a bit cramped. Flight arrived early at destination. That's a plus.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

I had already opted for Vegan food before 2 months yet they say we have no record for it,

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

Need to have more snacks for the duration and coffee.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

On time - really well operated flight. Friendly staff. Super impressed with United on this round trip.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

During the flight there was a medical emergency. We were diverted. Of course I'm thankful they cared for the health of that passenger, but they did a poor job of communicating with the rest of us passengers. In the end we arrived at our destination several hours late, with no direction of how to rebook missed connecting flights. It all worked out in the end. Those of us that needed accommodations were put up in a hotel by Lufthansa until we could make it to our final destination. But it was United Airlines Personnel who really helped us navigate the process.

Always a pleasure to deal with United's helpful and knowledgeable staff

Always a pleasure to deal with United's helpful and knowledgeable saff

This flight is always a cramped bus. The gate area was inadequate and announcements were hard to hear. The flight was delayed 45 minutes to an hour by a broken aircraft door, making our total delay from Vilnius 5 hours.

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

A350 has great entertainment. Make sure to watch the plane's external tail and nose camera's on landing and take off. Seats were a little hard for a 10 hour flight. I am gluten intolerant, they had good alternative meals for me on the flight.

I wrote about this leg of my itinerary in a previous part of this review

Boarding was horrible. We were packed into a bus with few seats and made to stand for 10 to 15 minutes, then driven for 5 minutes on wild curves. Complementary food and drink was a tiny chocolate and a bottle of water. Seating was cramped. Aircraft had no video.

Entertainment system was not working and was told I would get a voucher and have not got one. No toiletries were available not even a toothbrush false sweet talk by ground staff

Worst International flight I ever had in my whole life time. Boarding is the worst of all and flight experience was also not good. Screens were not working, seats were not comfortable and lot more.

Very very impressed with the proactive care and alertness with which ABHISHEK Chowdhary took care of us. Quietl,dignified , very alert, and meticulous. Very impressed. Also with SUNiL Kumar who was there for us in a very helpful way. SHERLY ALEX On Flight 119, BOM TO JFK CUSTOMER ON SEAT 21C, 21ST March 2024

If you are traveling to mumbai -- must try SFO - MUM direct flight. It's a game changer when you are traveling to India. Timings are well designed, optimal and makes the travel enjoyable.

Air India needs to launch new planes. Seats are worn out, most of the plane's TV screens wasn't working, USB charging ports wasn't working as well so I can charge my phone & watch my download movies, Food was mediocre, the plane smells. How can Air India put through their customers with this bad experience? This complaint needs to get escalated to the upper management. How shameful is the upper management to improve this plane? The flight is going back & forth from NEW YORK & DELHI. Two of the big cities in the world and this is how your experience is for sitting in a plane for 12+ hrs? Get your planes fixed ASAP Air India (TATA Management do your job right).

One of my worst experiences. Nothing was working in the flight. Entertainment system was broken, seat was very uncomfortable, crew did not offer water until food was provided, lights were not working, attendant call was not working. In short everything was broken and duct taped.

Old aircraft, crew were so so. Meals were mediocre. Flight to delhi was delayed. Lounge needs update and was mediocre too.

Bathrooms were horrible and no cleaning. Announced baggage claim carousel as one but came to a different one. People were waiting

Every thing was so old…. Can’t believe they are able to charge so much for this terrible level of service will use alternate company in future for all travel needs

The food on board the flight was atrocious - tasteless, spicy as hell, and simply a hodge podge of nonsensical items of poor quality.

Book Cheap Washington, D.C. Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Washington, D.C. found on KAYAK in the last 72 hours.
14-5Tue
2 stopsAmerican Airlines
33h 47mSIN-IAD
14-7Sun
2 stopsAmerican Airlines
36h 15mIAD-SIN
S$ 1,495
14-5Tue
2 stopsAmerican Airlines
33h 47mSIN-IAD
14-7Sun
2 stopsAmerican Airlines
36h 15mIAD-SIN
S$ 1,498
22-5Wed
1 stopAir India
44h 15mSIN-IAD
12-6Wed
1 stopAir India
22h 30mIAD-SIN
S$ 1,597
15-5Wed
1 stopAir India
44h 15mSIN-IAD
14-7Sun
1 stopAir India
22h 30mIAD-SIN
S$ 1,667
15-5Wed
2 stopsUnited Airlines
26h 26mSIN-IAD
14-7Sun
1 stopUnited Airlines
32h 40mIAD-SIN
S$ 1,701
15-5Wed
2 stopsUnited Airlines
34h 35mSIN-IAD
14-7Sun
1 stopUnited Airlines
32h 40mIAD-SIN
S$ 1,703
20-5Mon
2 stopsLufthansa
26h 05mSIN-IAD
21-6Fri
1 stopLufthansa
30h 10mIAD-SIN
S$ 1,891
22-5Wed
2 stopsLufthansa
27h 50mSIN-IAD
12-6Wed
2 stopsLufthansa
30h 25mIAD-SIN
S$ 2,035
14-5Tue
1 stopKorean Air
22h 05mSIN-IAD
14-7Sun
1 stopKorean Air
27h 20mIAD-SIN
S$ 2,152
14-5Tue
1 stopKorean Air
22h 05mSIN-IAD
14-7Sun
2 stopsKorean Air
25h 35mIAD-SIN
S$ 2,322

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Washington, D.C. found on KAYAK in the last 72 hours.
14-5Tue
3 stops
55h 40mSIN-IAD
S$ 914
13-5Mon
2 stops
30h 25mSIN-IAD
S$ 922
13-5Mon
2 stops
31h 10mSIN-IAD
S$ 928
18-6Tue
2 stopsIndiGo
36h 10mSIN-IAD
S$ 936
11-6Tue
1 stopAir India
34h 40mSIN-IAD
S$ 1,163
14-5Tue
1 stopLufthansa
25h 50mSIN-IAD
S$ 1,184
13-5Mon
1 stopUnited Airlines
22h 08mSIN-IAD
S$ 1,186
17-5Fri
1 stopUnited Airlines
28h 05mSIN-IAD
S$ 1,256
8-7Mon
1 stopKorean Air
22h 05mSIN-IAD
S$ 1,658
31-5Fri
1 stopAir India
44h 15mSIN-IAD
S$ 4,487

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Recent domestic flight deals

29-4Mon
directSun Country Air
2h 17mMSP-IAD
5-5Sun
directSun Country Air
2h 47mIAD-MSP
S$ 201
12-9Thu
directSun Country Air
2h 26mMSP-IAD
15-9Sun
directSun Country Air
2h 38mIAD-MSP
S$ 215
26-5Sun
directUnited Airlines
1h 41mBOS-IAD
29-5Wed
directUnited Airlines
1h 40mIAD-BOS
S$ 257
29-5Wed
directDelta
2h 24mMSP-IAD
3-6Mon
directDelta
2h 42mIAD-MSP
S$ 261
26-5Sun
directUnited Airlines
1h 41mBOS-IAD
29-5Wed
multi-stopUnited Airlines
5h 10mIAD-BOS
S$ 269
14-5Tue
directDelta
1h 45mATL-IAD
15-5Wed
directDelta
1h 49mIAD-ATL
S$ 271
20-5Mon
multi-stopAmerican Airlines
8h 57mIAH-IAD
21-5Tue
multi-stopAmerican Airlines
4h 47mIAD-IAH
S$ 815
20-5Mon
multi-stopAmerican Airlines
10h 48mIAH-IAD
21-5Tue
multi-stopAmerican Airlines
8h 08mIAD-IAH
S$ 898
29-4Mon
multi-stopQatar Airways
37h 35mIAH-IAD
1-5Wed
multi-stopQatar Airways
38h 04mIAD-IAH
S$ 4,170
21-9Sat
multi-stopQatar Airways
39h 21mIAH-IAD
23-9Mon
multi-stopQatar Airways
35h 41mIAD-IAH
S$ 4,517

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Flights to Washington Dulles Airport

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Singapore

Cabin classes: