Find flights
Deals
Airlines

S$ 175+ Cheap flights from Washington, D.C. Dulles Intl Airport

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25-6. 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.
IAD — SIN
7 Apr — 14 Apr1
1 adult

What to know about flights from Dulles Intl

Discover essential information about flights departing from Dulles Intl, including flight schedules, destinations, airlines operating at the Dulles Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 2 April 2025.

Good round-trip deal

S$ 9,080 or less

Good one-way deal

S$ 128 or less
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl.
Search Deals

Find flights from Dulles Intl

Cheapest flights from Dulles Intl
Explore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 2 April 2025.

Sat 31-522:18IAD - BOS
Nonstop1h 41mUnited Airlines
Sun 8-605:30BOS - IAD
Nonstop1h 34mUnited Airlines
Deal found 31-3S$ 197
Sat 2-820:30IAD - BOS
1 stop10h 51mDelta
Wed 6-806:00BOS - IAD
1 stop5h 55mDelta
Deal found 1-4S$ 398
Sun 31-822:05IAD - LHR
1 stop18h 35mScandinavian Airlines
Wed 22-1006:40LHR - IAD
1 stop18h 19mScandinavian Airlines
Deal found 1-4S$ 801
Wed 16-412:55IAD - LHR
1 stop12h 25mUnited Airlines
Tue 22-412:10LHR - IAD
1 stop33h 05mUnited Airlines
Deal found 2-4S$ 813
Sun 20-422:40IAD - LHR
Nonstop7h 25mFinnair
Tue 29-417:00LHR - IAD
Nonstop8h 10mFinnair
Deal found 1-4S$ 818
Wed 16-417:50IAD - LHR
Nonstop7h 30mDelta
Wed 23-409:00LHR - IAD
1 stop15h 15mDelta
Deal found 2-4S$ 821
Wed 23-420:45IAD - LHR
1 stop20h 00mSWISS
Tue 6-508:45LHR - IAD
1 stop12h 30mSWISS
Deal found 1-4S$ 830
Tue 2-920:30IAD - LHR
1 stop10h 25mIcelandair
Sun 26-1020:25LHR - IAD
1 stop26h 55mIcelandair
Deal found 1-4S$ 845
Mon 21-417:25IAD - LHR
1 stop33h 55mAustrian Airlines
Thu 1-509:05LHR - IAD
1 stop34h 30mAustrian Airlines
Deal found 1-4S$ 846
Tue 13-517:50IAD - LHR
Nonstop7h 30mVirgin Atlantic
Wed 4-609:00LHR - IAD
1 stop12h 20mVirgin Atlantic
Deal found 1-4S$ 868
Wed 23-422:40IAD - LHR
Nonstop7h 25mBritish Airways
Tue 6-517:00LHR - IAD
Nonstop8h 05mBritish Airways
Deal found 1-4S$ 869
Thu 1-518:30IAD - LHR
Nonstop7h 25mMultiple Airlines
Mon 5-513:45LHR - IAD
1 stop31h 30mMultiple Airlines
Deal found 1-4S$ 908

Find flights from Dulles Intl within your budget

Find flights departing from Dulles Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 2 April 2025. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 31-5

22:18-23:59

Nonstop1h 41m

Boston Logan Intl

Sun 8-6

05:30-07:04

Nonstop1h 34m

S$ 197

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 2-8

20:30-07:21

1 stop10h 51m

Boston Logan Intl

Wed 6-8

06:00-11:55

1 stop5h 55m

S$ 398

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 31-8

22:05-21:40

1 stop18h 35m

London Heathrow

Sun 26-10

18:40-16:40

1 stop26h 00m

S$ 801

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 16-4

12:55-06:20

1 stop12h 25m

London Heathrow

Tue 22-4

12:10-16:15

1 stop33h 05m

S$ 813

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 20-4

22:40-11:05

Nonstop7h 25m

London Heathrow

Tue 29-4

17:00-20:10

Nonstop8h 10m

S$ 818

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 16-4

17:50-06:20

Nonstop7h 30m

London Heathrow

Tue 22-4

06:15-16:20

1 stop15h 05m

S$ 821

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 23-4

20:45-21:45

1 stop20h 00m

London Heathrow

Tue 6-5

08:45-16:15

1 stop12h 30m

S$ 830

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 2-9

20:30-11:55

1 stop10h 25m

London Heathrow

Fri 24-10

21:25-19:20

1 stop26h 55m

S$ 845

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 21-4

17:25-08:20

1 stop33h 55m

London Heathrow

Tue 6-5

06:00-14:35

1 stop13h 35m

S$ 846

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 13-5

17:50-06:20

Nonstop7h 30m

London Heathrow

Wed 4-6

09:00-16:20

1 stop12h 20m

S$ 868

Flights are sorted by cheapest return flights first.

Deals found on 1-4

Showing 1-10 of 55 results
1
2
3
...
6

Best time to book a flight from Dulles Intl

Have a flexible travel schedule? Discover the best time to fly from Dulles Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dulles Intl

Get recent, data-driven insights about flights from Dulles Intl including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Singapore. Price data was last updated on 28 March 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of S$ 1,075). Flying from Washington, D.C. Dulles Intl Airport in July will prove the most costly (average of S$ 1,592). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

From Washington, D.C. Dulles Intl Airport you can expect to find greater availability for the following destinations: Chicago (328 flights per day), London (328 flights per day) and Orlando (312 flights per day).

Frankfurt am Main

Frankfurt am Main

From S$ 930

Tokyo

Tokyo

From S$ 6,685

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

The cheapest city to fly to from Washington, D.C. Dulles Intl Airport is Frankfurt am Main, with prices starting at S$ 1,249. Explore other affordable destinations below.

Frankfurt am Main

Frankfurt am Main

From S$ 930

Tokyo

Tokyo

From S$ 6,685

Airline reviews for flights from Dulles Intl

Get insights into the airlines that provide service from Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Dulles Intl. In the last 7 days, Cheapflights users made a total of 200,618 searches.
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,051 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very Good
830 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Alaska Airlines
8.0
Very Good
9,825 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Qatar Airways
7.4
Good
3,540 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
SAUDIA
7.4
Good
607 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternate flight departure points to Dulles Intl

Consider leaving from one of these other departure points that are located a short distance from Dulles Intl. Flight origins were last updated on 2 April 2025.
Flights from Reagan-National

Related info for your journey

Access useful and relevant information related to your journey from Dulles Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 2 April 2025.

  • What are the most popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

    This month, the top selected destinations from Washington, D.C. Dulles Intl Airport are Cairo, Paris Charles de Gaulle Airport, Amsterdam. Throughout the year, Mumbai, Cairo, Ahmedabad are some of the top choices made by users flying from Washington, D.C. Dulles Intl Airport.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to anywhere?

    Users have flown out of Washington, D.C. Dulles Intl Airport for as low as S$ 128 to DuBois, Pennsylvania (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 3,498 to fly from Washington, D.C. Dulles Intl Airport.

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

    Currently, the cheapest month for flights from Washington, D.C. Dulles Intl Airport is January. The most expensive month for flights is July. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • How does Cheapflights help users find flights from Dulles Intl?

    Cheapflights helps you search for flights from Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

    Cheapflights simply makes it quick and affordable to book flights from Dulles Intl by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

  • Can Cheapflights find flights from Dulles Intl with no change fees?

    Yes! Cheapflights helps users easily find flights from Dulles Intl with no change fees.

  • Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dulles Intl?

Cheapflights helps you search for flights from Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.