SIN - IAD

S$ 540 Find Cheap Flights from Singapore to Washington Dulles Airport – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
S$ 1,251
Typical prices: S$ 1,409-S$ 1,943
Air China
Fri 30-11Tue 4-12
SIN - IAD • 1 stop
Cheapest one-way flight
S$ 540
Typical prices: S$ 1,028-S$ 1,360
Air China
Fri 14-12
SIN - IAD • 1 stop
Direct flights
Not available
There are currently no direct flights between Singapore and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 22% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Abu Dhabi Zayed Intl (AUH)
Cheapest • Avg S$ 1,283 (return)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 21h 49m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Singapore to Dulles Intl (SIN-IAD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Singapore to Dulles Intl

Mon, 30 Nov - Fri, 4 Dec
Air China Logo
17:45 - 18:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
37h 45m1 stop Beijing Capital
Air China Logo
22:00 - 21:55IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
34h 55m1 stop Beijing Capital
S$ 1,251Air China
3+ days ago
Mon, 23 Nov - Mon, 30 Nov
Multiple Airlines Logo
17:45 - 18:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
37h 45m1 stop Beijing Capital
Multiple Airlines Logo
23:35 - 17:15IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
28h 40m1 stop Incheon Intl
S$ 1,265Multiple Airlines
3+ days ago
Mon, 23 Nov - Mon, 30 Nov
Multiple Airlines Logo
17:45 - 18:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
37h 45m1 stop Beijing Capital
Multiple Airlines Logo
23:35 - 02:25IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
37h 50m2 stops Incheon Intl Shanghai Pu Dong
S$ 1,297Multiple Airlines
3+ days ago
Thu, 26 Nov - Wed, 9 Dec
Turkish Airlines Logo
05:10 - 19:25SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
27h 15m1 stop Istanbul
Turkish Airlines Logo
13:30 - 10:00IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
31h 30m1 stop Istanbul
S$ 1,332Turkish Airlines
2 days ago
Mon, 21 Dec - Thu, 7 Jan
Turkish Airlines Logo
23:15 - 11:45SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
25h 30m1 stop Istanbul
Turkish Airlines Logo
21:20 - 17:40IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
31h 20m1 stop Istanbul
S$ 1,343Turkish Airlines
3+ days ago
Thu, 26 Nov - Thu, 3 Dec
Turkish Airlines Logo
05:10 - 11:45SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
43h 35m1 stop Istanbul
Turkish Airlines Logo
21:20 - 06:50IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
44h 30m1 stop Istanbul
S$ 1,355Turkish Airlines
1 day ago
Mon, 1 Feb - Tue, 16 Feb
Air China Logo
00:50 - 18:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
30h 40m2 stops Shanghai Pu Dong Beijing Capital
Air China Logo
22:00 - 21:55IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
34h 55m1 stop Beijing Capital
S$ 1,360Air China
19 hours ago
Wed, 23 Dec - Tue, 5 Jan
Air China Logo
22:55 - 18:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
56h 35m2 stops Shanghai Pu Dong Beijing Capital
Air China Logo
22:00 - 16:15IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
29h 15m1 stop Beijing Capital
S$ 1,420Air China
3+ days ago
Wed, 20 Jan - Wed, 27 Jan
ANA Logo
22:20 - 09:10SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
23h 50m1 stop Tokyo Haneda
ANA Logo
08:15 - 00:45IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
27h 30m2 stops Chicago O'Hare Intl Tokyo Narita
S$ 1,423ANA
2 days ago
Fri, 16 Apr - Wed, 21 Apr
ANA Logo
22:00 - 10:05SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
24h 05m1 stop Tokyo Haneda
ANA Logo
15:35 - 06:40IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
27h 05m2 stops Chicago O'Hare Intl Tokyo Haneda
S$ 1,424ANA
2 days ago
Booking Insights

Price, demand, and travel trends for Singapore to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Singapore to Washington, D.C. Dulles Intl Airport?

Return flights from Singapore to Washington, D.C. Dulles Intl Airport typically range from S$ 1,409 to S$ 1,943. The lowest price found in the past 5 days was S$ 1,251 on Air China.

What's the cheapest day of the week to fly from Singapore to Washington, D.C. Dulles Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Singapore to Washington, D.C. Dulles Intl Airport. It's 19% cheaper than the average day, while Sunday is the most expensive, with prices 23% higher.

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

•February is the cheapest month to fly from Singapore to Washington, D.C. Dulles Intl Airport at S$ 1,309 return.
•June (S$ 1,934) and April (S$ 1,925) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 47% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Singapore to Washington, D.C. Dulles Intl Airport flights

Low season

September

Cheapest flight

S$ 540
Beat the crowds with an average 49% drop in travellers.
The most popular month to fly with an average 103% increase in travellers.
One-way flight from Singapore to Washington, D.C. Dulles Intl Airport

When to book flights from Singapore to Dulles Intl

Are your dates flexible? Find out the best times to travel from Singapore to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Singapore to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Singapore to Washington, D.C. Dulles Intl Airport?

    Three cabin classes are available on flights from Singapore to Washington, D.C. Dulles Intl Airport:

    • Economy class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Singapore to Washington, D.C. Dulles Intl Airport?

    A direct flight from Singapore to Washington, D.C. Dulles Intl Airport takes 00m, covering 24,977 km.

  • Do I need a passport to fly from Singapore to Washington, D.C. Dulles Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Singapore to Washington, D.C. Dulles Intl Airport flight?

    Return flights from Singapore to Washington, D.C. Dulles Intl Airport range from S$ 1,409 to S$ 1,943, with an average of S$ 1,687 over the past 12 months. Anything below S$ 1,409 counts as a good deal.

  • How are flight prices from Singapore to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Singapore to Washington, D.C. Dulles Intl Airport are currently higher than usual. Average one-way flight prices are about S$ 1,444, which is 19% above the typical average for this route.

  • Which car hire options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around S$ 89 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • Which airports can I use when flying from Singapore to Washington, D.C. Dulles Intl Airport?

    Flights from Singapore to Washington, D.C. Dulles Intl Airport usually depart from Singapore Changi (SIN) and arrive at Washington, D.C. Dulles Intl (IAD).

  • Which airports do connecting flights from Singapore to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from Singapore to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • San Francisco (SFO) – 17% of one-stop connections
    • Tokyo Haneda (HND) – 16% of one-stop connections
    • Istanbul (IST) – 16% of one-stop connections
    • Incheon Intl (ICN) – 12% of one-stop connections

  • Can I save money by using flexible dates for flights from Singapore to Washington, D.C. Dulles Intl Airport?

    Yes. Flexible dates can save you up to 34% on flights from Singapore to Washington, D.C. Dulles Intl Airport. Thursday is the cheapest departure day at S$ 1,382 return on average, while Sunday is the most expensive at S$ 2,086, a difference of S$ 704.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Singapore to Washington, D.C. Dulles Intl Airport?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time of 21h 49m, compared to 23h 13m via Dubai Intl (DXB) and 23h 49m via San Francisco (SFO).

  • What is the time difference between Singapore and Washington, D.C. Dulles Intl Airport?

    Washington, D.C. Dulles Intl Airport is 12 hours behind Singapore (Eastern Time vs Singapore Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Singapore to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Sunday. On this route, Thursday flights average S$ 1,382, which is about S$ 704 less than Sunday fares (34% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Singapore to Washington, D.C. Dulles Intl Airport trip for February. Fares historically average S$ 1,309 return in that month – typically S$ 625 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from Singapore to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car hire

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