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S$ 133+ Direct 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 3-10. 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
4 Jul — 11 Jul1
1 adult

Direct 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 29 June 2025.

Thu 7-822:18IAD - BOS
Nonstop1h 41mUnited Airlines
Wed 20-809:30BOS - IAD
Nonstop1h 43mUnited Airlines
Deal found 26-6S$ 175
Tue 15-718:35IAD - LHR
Nonstop7h 20mUnited Airlines
Thu 7-812:15LHR - IAD
Nonstop8h 20mUnited Airlines
Deal found 28-6S$ 747
Tue 8-722:40IAD - LHR
Nonstop7h 25mBritish Airways
Wed 13-814:25LHR - IAD
Nonstop8h 05mBritish Airways
Deal found 27-6S$ 749
Sat 26-717:50IAD - LHR
Nonstop7h 30mDelta
Tue 5-812:35LHR - IAD
Nonstop8h 25mDelta
Deal found 26-6S$ 767
Mon 11-817:50IAD - LHR
Nonstop7h 30mVirgin Atlantic
Mon 18-812:35LHR - IAD
Nonstop8h 25mVirgin Atlantic
Deal found 27-6S$ 781

Find direct flights from Dulles Intl within your budget

Use the slider to find direct flights from Dulles Intl within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 200,618 searches. This data was last updated on 29 June 2025.

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$ 175

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 15-7

18:35-06:55

Nonstop7h 20m

London Heathrow

Thu 7-8

12:15-15:35

Nonstop8h 20m

S$ 747

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 8-7

22:40-11:05

Nonstop7h 25m

London Heathrow

Wed 13-8

14:25-17:30

Nonstop8h 05m

S$ 749

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sat 26-7

17:50-06:20

Nonstop7h 30m

London Heathrow

Tue 5-8

12:35-16:00

Nonstop8h 25m

S$ 767

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 11-8

17:50-06:20

Nonstop7h 30m

London Heathrow

Mon 18-8

12:35-16:00

Nonstop8h 25m

S$ 781

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Fri 3-10

22:19-23:59

Nonstop1h 40m

S$ 133

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 12-8

18:35-06:55

Nonstop7h 20m

S$ 490

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 10-8

17:55-06:15

Nonstop7h 20m

S$ 494

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 1-8

17:50-06:20

Nonstop7h 30m

S$ 592

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 3-7

17:50-06:20

Nonstop7h 30m

S$ 1,369

Flights are sorted by cheapest return flights first.

Deals found on 26-6

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.

Reviews of airlines flying direct to Dulles Intl

Get insights into the airlines that provide direct flights 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 an airline for your flight from Dulles Intl. Reviews last updated Cheapflights.
Read through reviews of airlines serving Washington, D.C. Dulles Intl Airport, such as Korean Air, Qatar Airways, andEtihad Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,099 reviews
Check prices

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

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
1,099 reviews
Korean Air
8.4
Very Good
1,099 reviews
Check prices

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

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
3,596 reviews
Korean Air
8.4
Very Good
1,099 reviews
Check prices

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

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.
Etihad Airways
7.4
Good
1,220 reviews
Korean Air
8.4
Very Good
1,099 reviews
Check prices

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

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.
Turkish Airlines
7.3
Good
3,879 reviews
Korean Air
8.4
Very Good
1,099 reviews
Check prices

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

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.
IndiGo
6.8
Okay
478 reviews
Korean Air
8.4
Very Good
1,099 reviews
Check prices

Crew

8.7

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Boarding

8.5

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.

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 29 June 2025.

  • Where can you fly direct from Washington, D.C. Dulles Intl Airport?

    Currently, the most popular direct flight destination from Washington, D.C. Dulles Intl Airport is DuBois, Pennsylvania.

  • What is the best time of year to fly direct from Washington, D.C. Dulles Intl Airport?

    If you're seeking the lowest price on a direct flight from Washington, D.C. Dulles Intl Airport, May is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, January offers travelers the most options.

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