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Find cheap flights to Washington Dulles Airport from S$ 634

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 19-4. 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
Thu 18-4
Thu 25-4

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 47,600,107 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.
17:00 - 15:45SIN-IAD
34h 45m1 stop
19:10 - 15:45IAD-SIN
32h 35m1 stop
S$ 1,437SAUDIA
Find Deal
Sat, 30 Mar - Sat, 13 Apr
01:50 - 23:37SIN-IAD
33h 47m2 stops
06:00 - 06:15IAD-SIN
36h 15m2 stops
S$ 1,503American Airlines
Find Deal
Tue, 14 May - Sun, 14 Jul
09:00 - 01:05SIN-IAD
28h 05m1 stop
22:00 - 18:45IAD-SIN
32h 45m2 stops
S$ 1,586United Airlines
Find Deal
Tue, 30 Apr - Sun, 5 May
23:20 - 20:35SIN-IAD
33h 15m1 stop
22:50 - 17:45IAD-SIN
30h 55m1 stop
S$ 1,598British Airways
Find Deal
Sat, 14 Sep - Sun, 22 Sep
09:00 - 01:05SIN-IAD
28h 05m1 stop
06:25 - 06:45IAD-SIN
36h 20m2 stops
S$ 1,609United Airlines
Find Deal
Mon, 15 Apr - Mon, 22 Apr
23:20 - 20:35SIN-IAD
33h 15m1 stop
22:50 - 16:05IAD-SIN
29h 15m1 stop
S$ 1,617British Airways
Find Deal
Sat, 14 Sep - Sun, 22 Sep
10:30 - 16:10SIN-IAD
41h 40m1 stop
21:05 - 20:45IAD-SIN
35h 40m1 stop
S$ 1,680Qatar Airways
Find Deal
Sun, 14 Apr - Sat, 20 Apr
02:15 - 16:10SIN-IAD
25h 55m1 stop
10:55 - 20:45IAD-SIN
21h 50m1 stop
S$ 1,741Qatar Airways
Find Deal
Mon, 29 Apr - Sun, 5 May
00:50 - 08:40SIN-IAD
43h 50m1 stop
10:55 - 15:00IAD-SIN
40h 05m1 stop
S$ 2,176Emirates
Find Deal
Sat, 13 Apr - Sat, 20 Apr
00:30 - 08:40SIN-IAD
44h 10m1 stop
10:55 - 21:45IAD-SIN
22h 50m1 stop
S$ 2,457Emirates
Find Deal
Sat, 30 Mar - Wed, 3 Apr

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$ 1,786. On the other hand, the most expensive day to fly is Friday, where prices are S$ 2,215 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$ 1,498 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$ 2,285 and S$ 2,231 respectively. For return trips, the best month to travel is January with an average price of S$ 1,498.

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$ 1,817 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$ 2,018.

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 28h 40m.

How many long-haul flights are there to Washington, D.C. Dulles Intl Airport each week?

Each week there are around 441 long-haul flights (6-12 hour flight duration), 454 medium-haul (3-6 hour flight duration) and 2,067 short-haul (up to 3 hour flight duration) flights to Washington, D.C. Dulles Intl Airport. The most long-haul flights depart from London.

Good to know

Low season

January

High season

May

Cheapest flight

S$ 634
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 1,688 per week, followed by Delta with 201 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, +66 more

ANA, ASKY, +67 more

Tuesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Friday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Saturday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Sunday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Singapore

Monday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Tuesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Friday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Saturday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Sunday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

See more direct flights
See more direct flights

Top 5 airlines flying to Dulles Intl

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 KAYAK reviews.
8.1
EmiratesOverall score based on 4215 reviews
82boarding
83entertainment
79food
83crew
81comfort
81overall
Airline reviews

Service needs to improve. Air hostess do not register flyers request and we need to keep on repeating our request to them on multiple occasions

Read more about Emirates

Service needs to improve. Air hostess do not register flyers request and we need to keep on repeating our request to them on multiple occasions

The flight was great. We had to purchase extra long seats for the long flight. But overall it was great.

The experience was not as pleasant returning as leaving. Went through clearance twice, crew was not as customer focused.

WORST AIRLINE EVER—FOOD WAS MEDIOCRE AND WIDEBODY 777 BOEING WAS VERY UNCOMFORTABLE! IT WAS NOT WORTH THE MONEY THAT I PAID.

Amazing service and food. However I didn’t get chance to choose my own seat which bothered me a little.

More space all around is practically essential on long international fights, and Emirates definitely delivers. But food selection and taste was only average. Otherwise, the flight was smooth and the cabin crew service was fine.

Food was not eadable. Testless and not apealing. order for indian vegitarian, recived spice less. combination of main course and side iteams are far away from traditonal food, serve less iteams. , but eadoble. Thanks

I bought Business class ticket but they treated me like economic class. No lounge allowed at check inn I have to take stuff out while other passengers have more than 25 lb in bag. Because I bought tickets from other than airlines . It’s discriminations from airlines to passengers.

Quality and tasty Food and service, bigger seat comfort and leg room, etc.

The service was fantastic. Not much could be done better

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,

Too many boarding protocols. Never experienced with other international flights.

Polite and helpful crew. My son developed fever. Crew members came and gave him medication and also came and enquired about his health several times.

After going through security and waiting for the flight at the gate, there was no access to bathrooms and no place to charge a phone while waiting for the flight. But once I was on the plane, everything was very good.

Overall good but staff in the place looked extremely tired after 8hrs in 14 hrs journey and then service was cut short and response time for calls increased in later part of flight. Food was ok not astonishing

Better service is needed. I booked for Qatar but I was switched to American way after I bought my tickets.

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

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

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.

didn’t even get to go one of my returning flights cancelled and I wasn’t even in their system, vacation ruined thanks for nothing

Crew was rowdy and loud just hanging out in the rear of the plane instead of assisting passengers during boarding. During the flight the crew mostly hung out in the rear of the plane being obnoxious to a point of disturbance.

United flight from Frankfurt to Istanbul is on Lufthanza and United could neither provide a boarding pass or Lufthanza code to get a boarding pass. Very poor connection ability in Frankfurt and much frustration with the connection.

Need more time for connecting flights in Munich Food seems worse now on Lufthansa Very uncomfortable seats

Good with last minute upgrade Clt to Munich comfortable. Wish same offer had been there Mumbai to Munich

Excellent service by united air staff. Very helpful, understanding and do friendly.

+ Clean, modern plane. - Despite the cabin had only 50% occupancy I was cramped in a row with 2 other people. Almost all other rows had only 1 person. I would have expected the airline to offer assistance other than a flight attendant to tell people in the back of the plane to find available seats. Next time I will not purchase an upgraded seat and hope I get my personal row for free.

The crew on this flight were excellent. They were friendly and attentive. It really made the flight more enjoyable.

I sat in the last row of seats. On an 8 hour flight they allowed folks to stand and talk and drink in the back area near the toilets the whole time. They were at times loud and in the way. It was a little annoying. The crew on this trip were pretty mediocre and the plane was littered with trash when we disembarked.

Boarding process needs to be improved. Business class passengers were told to stand in the economy line and vice versa.

I travelled on biz class and f there is no water in the toilette to wash my hands I would expect to have this indicated somehow and not just finding out when I'm there expecting to be able to wash my hands and teeth. Also this is in general that it is always so rushy at the end of these kind of long flights. It is like we are sitting there for 9 hours and the last 1.5 hours just feels like I have time for nothing. Because food comes and at the same time we are close to destination everyone tries to pack their stuff and go to toilette and eat and everything :))) not that like I would know a good solution here I just wanted to raise this :)

Emergency row seat less comfortable than promoted. Restricted by emergency life raft storage.

Better communication to those connecting flights and have a customer care desk at the airports

American was good / British Airways partner was not as good…

The entertainment system in our row was not working. That makes for a VERY long flight!!

A little more legroom, and maybe a little bit of food

Pre flight food options were not working and made the flight not enjoyable. Post experiences of British airways have been positive, but this is enough to stop me using British airways again

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.
30-3Sat
1 stopSAUDIA
34h 45mSIN-IAD
13-4Sat
1 stopSAUDIA
32h 35mIAD-SIN
S$ 1,437
14-5Tue
2 stopsAmerican Airlines
33h 47mSIN-IAD
14-7Sun
2 stopsAmerican Airlines
36h 15mIAD-SIN
S$ 1,503
30-4Tue
1 stopUnited Airlines
28h 05mSIN-IAD
5-5Sun
2 stopsUnited Airlines
32h 45mIAD-SIN
S$ 1,586
14-9Sat
1 stopBritish Airways
33h 15mSIN-IAD
22-9Sun
1 stopBritish Airways
30h 55mIAD-SIN
S$ 1,598
15-4Mon
1 stopUnited Airlines
28h 05mSIN-IAD
22-4Mon
2 stopsUnited Airlines
36h 20mIAD-SIN
S$ 1,609
14-9Sat
1 stopBritish Airways
33h 15mSIN-IAD
22-9Sun
1 stopBritish Airways
29h 15mIAD-SIN
S$ 1,617
14-4Sun
1 stopQatar Airways
41h 40mSIN-IAD
20-4Sat
1 stopQatar Airways
35h 40mIAD-SIN
S$ 1,680
29-4Mon
1 stopQatar Airways
25h 55mSIN-IAD
5-5Sun
1 stopQatar Airways
21h 50mIAD-SIN
S$ 1,741
13-4Sat
1 stopEmirates
43h 50mSIN-IAD
20-4Sat
1 stopEmirates
40h 05mIAD-SIN
S$ 2,176
30-3Sat
1 stopEmirates
44h 10mSIN-IAD
3-4Wed
1 stopEmirates
22h 50mIAD-SIN
S$ 2,457

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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.
19-4Fri
1 stopAir China
42h 10mSIN-IAD
S$ 634
26-4Fri
1 stopAir China
42h 10mSIN-IAD
S$ 638
4-6Tue
1 stopLufthansa
32h 00mSIN-IAD
S$ 1,107
15-4Mon
1 stopQatar Airways
25h 55mSIN-IAD
S$ 1,140
5-6Wed
1 stopQatar Airways
34h 15mSIN-IAD
S$ 1,146
19-4Fri
3 stopsUnited Airlines
32h 21mSIN-IAD
S$ 1,269
6-7Sat
1 stopLufthansa
27h 35mSIN-IAD
S$ 1,270
11-5Sat
1 stopEmirates
43h 00mSIN-IAD
S$ 1,399
2-6Sun
1 stopEmirates
43h 50mSIN-IAD
S$ 1,432
4-6Tue
3 stopsUnited Airlines
38h 59mSIN-IAD
S$ 1,570

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Recent domestic flight deals

9-4Tue
directSun Country Air
2h 22mMSP-IAD
16-4Tue
directSun Country Air
2h 34mIAD-MSP
S$ 158
13-7Sat
directSun Country Air
2h 30mMSP-IAD
22-7Mon
directSun Country Air
2h 51mIAD-MSP
S$ 171
30-5Thu
directDelta
1h 45mATL-IAD
4-6Tue
directDelta
1h 52mIAD-ATL
S$ 183
8-4Mon
directSun Country Air
2h 22mMSP-IAD
16-4Tue
directSun Country Air
2h 34mIAD-MSP
S$ 185
30-5Thu
directDelta
1h 45mATL-IAD
3-6Mon
directDelta
1h 44mIAD-ATL
S$ 203
29-4Mon
directUnited Airlines
1h 42mBOS-IAD
30-4Tue
directUnited Airlines
1h 37mIAD-BOS
S$ 240
17-4Wed
directUnited Airlines
1h 58mORD-IAD
23-4Tue
directUnited Airlines
2h 07mIAD-ORD
S$ 253
17-4Wed
multi-stopAmerican Airlines
11h 48mJFK-IAD
18-4Thu
multi-stopAmerican Airlines
11h 21mIAD-JFK
S$ 1,031
29-3Fri
multi-stopQatar Airways
35h 21mHOU-IAD
1-4Mon
multi-stopQatar Airways
43h 40mIAD-HOU
S$ 4,857
14-4Sun
multi-stopQatar Airways
42h 45mHOU-IAD
21-4Sun
multi-stopQatar Airways
33h 59mIAD-HOU
S$ 4,928

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Last minute flights to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Washington, D.C. that are departing in the next 10 days.
22-3Fri
multi-stopQatar Airways
42h 00mSIN-IAD
29-3Fri
multi-stopQatar Airways
22h 05mIAD-SIN
S$ 1,748
22-3Fri
multi-stop
29h 35mSIN-IAD
29-3Fri
multi-stop
25h 15mIAD-SIN
S$ 1,796
22-3Fri
multi-stop
45h 40mSIN-IAD
29-3Fri
multi-stop
31h 05mIAD-SIN
S$ 1,854
22-3Fri
multi-stopQatar Airways
42h 00mSIN-IAD
29-3Fri
multi-stopQatar Airways
50h 20mIAD-SIN
S$ 1,922
21-3Thu
multi-stopSWISS
27h 25mSIN-IAD
29-3Fri
multi-stopSWISS
36h 25mIAD-SIN
S$ 1,929
21-3Thu
multi-stopSWISS
27h 25mSIN-IAD
29-3Fri
multi-stopSWISS
35h 10mIAD-SIN
S$ 1,962
22-3Fri
multi-stop
45h 40mSIN-IAD
29-3Fri
multi-stop
28h 55mIAD-SIN
S$ 1,967
21-3Thu
multi-stopSWISS
27h 35mSIN-IAD
29-3Fri
multi-stopSWISS
35h 10mIAD-SIN
S$ 2,267
21-3Thu
multi-stopEthiopian Air
43h 00mSIN-IAD
29-3Fri
multi-stopEthiopian Air
33h 10mIAD-SIN
S$ 3,021

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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: