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S$ 150+ Cheap flights from Washington, D.C. Dulles Intl Airport

This is the cheapest return 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
18 Jun — 25 Jun1
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 13 June 2025.

Good one-way deal

S$ 122 or less
Price to beat on a one-way flight from Washington, D.C. Dulles Intl.
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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 13 June 2025.

Wed 6-822:18IAD - BOS
Nonstop1h 41mUnited Airlines
Wed 13-805:30BOS - IAD
Nonstop1h 34mUnited Airlines
Deal found 11-6S$ 206
Mon 30-612:13IAD - BOS
1 stop4h 01mDelta
Tue 1-706:05BOS - IAD
1 stop5h 54mDelta
Deal found 12-6S$ 324
Sun 7-917:25IAD - CUZ
2 stops16h 35mDelta
Thu 18-904:15CUZ - IAD
2 stops18h 52mDelta
Deal found 11-6S$ 659
Sun 20-709:35IAD - LHR
1 stop15h 55mUnited Airlines
Fri 1-806:50LHR - IAD
1 stop11h 40mUnited Airlines
Deal found 12-6S$ 849
Thu 31-718:39IAD - LHR
1 stop13h 31mDelta
Fri 15-812:35LHR - IAD
Nonstop8h 25mDelta
Deal found 12-6S$ 850
Fri 22-822:40IAD - LHR
Nonstop7h 25mMultiple Airlines
Tue 2-906:10LHR - IAD
1 stop13h 50mMultiple Airlines
Deal found 11-6S$ 853
Wed 20-822:05IAD - LHR
2 stops18h 15mScandinavian Airlines
Fri 29-821:05LHR - IAD
2 stops27h 54mScandinavian Airlines
Deal found 11-6S$ 854
Wed 30-717:50IAD - LHR
Nonstop7h 30mVirgin Atlantic
Mon 4-812:35LHR - IAD
Nonstop8h 25mVirgin Atlantic
Deal found 11-6S$ 858
Fri 5-1219:40IAD - LHR
1 stop10h 10mIcelandair
Thu 11-1212:15LHR - IAD
1 stop11h 05mIcelandair
Deal found 10-6S$ 859
Mon 7-719:25IAD - LHR
Nonstop7h 20mBritish Airways
Sun 17-817:05LHR - IAD
Nonstop8h 10mBritish Airways
Deal found 12-6S$ 860
Mon 14-717:35IAD - LHR
1 stop11h 40mBrussels Airlines
Tue 22-717:50LHR - IAD
1 stop24h 40mBrussels Airlines
Deal found 11-6S$ 867
Sun 2-1118:00IAD - LHR
1 stop15h 05mAustrian Airlines
Sun 30-1113:55LHR - IAD
1 stop29h 45mAustrian Airlines
Deal found 12-6S$ 873

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 13 June 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

Wed 6-8

22:18-23:59

Nonstop1h 41m

Boston Logan Intl

Wed 13-8

05:30-07:04

Nonstop1h 34m

S$ 206

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 30-6

12:13-16:14

1 stop4h 01m

Boston Logan Intl

Tue 1-7

06:05-11:59

1 stop5h 54m

S$ 324

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Sun 7-9

17:25-09:00

2 stops16h 35m

Cusco Velazco Astete

Thu 18-9

04:15-00:07

2 stops18h 52m

S$ 659

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 20-7

09:35-06:30

1 stop15h 55m

London Heathrow

Fri 1-8

06:50-13:30

1 stop11h 40m

S$ 849

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 31-7

20:31-11:25

1 stop9h 54m

London Heathrow

Tue 5-8

12:35-16:00

Nonstop8h 25m

S$ 850

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 22-8

22:40-11:05

Nonstop7h 25m

London Heathrow

Tue 2-9

06:10-15:00

1 stop13h 50m

S$ 853

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 20-8

22:05-21:20

2 stops18h 15m

London Heathrow

Fri 29-8

21:05-19:59

2 stops27h 54m

S$ 854

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 5-12

19:40-19:30

1 stop18h 50m

London Heathrow

Mon 8-12

12:15-18:20

1 stop11h 05m

S$ 859

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 7-7

19:25-07:45

Nonstop7h 20m

London Heathrow

Sun 17-8

17:05-20:15

Nonstop8h 10m

S$ 860

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 31-7

19:50-13:30

1 stop12h 40m

London Heathrow

Fri 15-8

10:55-19:43

1 stop13h 48m

S$ 864

Flights are sorted by cheapest return flights first.

Deals found on 11-6

Showing 1-10 of 60 results
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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 9 June 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 52 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$ 1,024). Flying from Washington, D.C. Dulles Intl Airport in June will prove the most costly (average of S$ 1,475). 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 (388 flights per day), London (370 flights per day) and Atlanta (281 flights per day).

Frankfurt am Main
Frankfurt am Main
From S$ 930
Doha Hamad Intl
Doha Hamad Intl
From S$ 1,224
San Francisco
San Francisco
From S$ 237

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 San Francisco, with prices starting at S$ 303. Explore other affordable destinations below.

San Francisco
San Francisco
From S$ 237
Frankfurt am Main
Frankfurt am Main
From S$ 930
Doha Hamad Intl
Doha Hamad Intl
From S$ 1,224

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.
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,202 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,091 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very Good
882 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Singapore Airlines
8.1
Very Good
1,302 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very Good
7,946 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.1

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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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 13 June 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 13 June 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, Amman, Athens. 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$ 122 to DuBois, Pennsylvania (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 842 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 June. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Washington, D.C. Dulles Intl Airport?

    View the cheapest flight destinations from Washington, D.C. Dulles Intl Airport:
    Fly from Washington, D.C. to Singapore from S$ 1,001 round trip

  • 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!

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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!

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