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S$ 570+ Cheap flights to Dulles Intl

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 5-3. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
17 Mar — 24 Mar1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Dulles Intl Airport
Explore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 15 February 2026.

Mon 30-323:25
SIN
-
IAD
1 stop32h 05m
Air China
Tue 7-423:00
IAD
-
SIN
1 stop34h 55m
Air China
Deal found 15-2S$ 1,210
Tue 31-310:25
SIN
-
IAD
1 stop45h 25m
Turkish Airlines
Tue 7-413:20
IAD
-
SIN
1 stop31h 25m
Turkish Airlines
Deal found 14-2S$ 1,238
Mon 30-311:10
SIN
-
IAD
1 stop36h 25m
Turkish Airlines
Mon 6-421:45
IAD
-
SIN
1 stop23h 45m
Turkish Airlines
Deal found 13-2S$ 1,255
Thu 12-310:15
SIN
-
IAD
1 stop38h 30m
Turkish Airlines
Thu 19-322:15
IAD
-
SIN
1 stop22h 20m
Turkish Airlines
Deal found 12-2S$ 1,267
Sun 22-210:15
SIN
-
IAD
1 stop46h 05m
Turkish Airlines
Mon 9-322:15
IAD
-
SIN
1 stop23h 45m
Turkish Airlines
Deal found 11-2S$ 1,269
Wed 1-411:10
SIN
-
IAD
1 stop36h 25m
Turkish Airlines
Wed 8-421:45
IAD
-
SIN
1 stop23h 00m
Turkish Airlines
Deal found 15-2S$ 1,272
Sun 29-310:25
SIN
-
IAD
1 stop37h 10m
Turkish Airlines
Sun 5-421:45
IAD
-
SIN
1 stop23h 00m
Turkish Airlines
Deal found 11-2S$ 1,282
Sun 15-310:15
SIN
-
IAD
1 stop46h 05m
Turkish Airlines
Sun 22-314:30
IAD
-
SIN
1 stop30h 05m
Turkish Airlines
Deal found 13-2S$ 1,284
Fri 27-311:40
SIN
-
IAD
1 stop37h 05m
Turkish Airlines
Fri 10-413:20
IAD
-
SIN
1 stop31h 25m
Turkish Airlines
Deal found 14-2S$ 1,303
Sat 28-310:15
SIN
-
IAD
1 stop37h 20m
Turkish Airlines
Sat 4-413:20
IAD
-
SIN
1 stop32h 10m
Turkish Airlines
Deal found 11-2S$ 1,304
Wed 9-911:10
SIN
-
IAD
1 stop36h 25m
Turkish Airlines
Wed 7-1021:45
IAD
-
SIN
1 stop23h 00m
Turkish Airlines
Deal found 15-2S$ 1,309

Find flight deals to Dulles Intl Airport

Find the latest flights to Dulles Intl in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 15 February 2026.

Return from

S$ 1,210

One-way from

S$ 570

Popular in

April

Cheapest in

September

Average price

S$ 1,375
Air China
  • Air China
  • 30-3-7-4
  • 2 total stops
  • 67h 00m total
  • Singapore to Washington, D.C.
Search Deals
Air China
  • Air China
  • 5-3
  • 1 total stop
  • 37h 35m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (S$ 80 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (S$ 40 potential savings vs. average return price).
Search Deals
Average for return flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Dulles Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 15 February 2026.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Singapore

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 29-3

21:20-15:40

2 stops30h 20m

Washington, D.C. Dulles Intl

Sun 5-4

15:10-06:50

2 stops27h 40m

S$ 1,347

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 28-4

13:45-17:05

2 stops63h 20m

Washington, D.C. Dulles Intl

Tue 26-5

06:00-12:35

2 stops42h 35m

S$ 1,379

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 13-5

02:00-07:34

2 stops41h 34m

Washington, D.C. Dulles Intl

Sat 8-8

06:05-12:35

2 stops42h 30m

S$ 1,417

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 28-3

08:45-15:40

2 stops42h 55m

Washington, D.C. Dulles Intl

Sat 4-4

18:50-17:35

1 stop34h 45m

S$ 1,426

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 29-3

10:25-11:35

1 stop37h 10m

Washington, D.C. Dulles Intl

Tue 7-4

21:45-08:45

1 stop23h 00m

S$ 1,427

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 25-3

11:40-12:45

1 stop37h 05m

Washington, D.C. Dulles Intl

Tue 7-4

13:20-08:45

1 stop31h 25m

S$ 1,427

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 29-3

10:25-11:35

1 stop37h 10m

Washington, D.C. Dulles Intl

Thu 9-4

13:20-09:30

1 stop32h 10m

S$ 1,427

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 29-3

10:25-11:35

1 stop37h 10m

Washington, D.C. Dulles Intl

Fri 10-4

13:20-08:45

1 stop31h 25m

S$ 1,427

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 25-3

11:40-12:45

1 stop37h 05m

Washington, D.C. Dulles Intl

Mon 13-4

13:20-09:30

1 stop32h 10m

S$ 1,427

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 29-3

10:25-11:35

1 stop37h 10m

Washington, D.C. Dulles Intl

Wed 8-4

21:45-08:45

1 stop23h 00m

S$ 1,427

Flights are sorted by cheapest return flights first.

Deals found on 13-2

Showing 1-10 of 20 results
1
2

Best time to book a flight to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Insights

Everything you need to know about your flight to Washington, D.C. Dulles Intl Airport

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from Singapore to Dulles Intl are Korean Air, United Airlines and Turkish Airlines.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to 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 to Dulles Intl. Reviews last updated 15 February 2026.
Read reviews from past customers who have flown Korean Air, Qatar Airways, andUnited Airlines to the United States. 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
1,192 reviews
Check prices

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,192 reviews
Korean Air
8.4
Very Good
1,192 reviews
Check prices

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Qatar Airways
7.4
Good
3,739 reviews
Korean Air
8.4
Very Good
1,192 reviews
Check prices

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,293 reviews
Korean Air
8.4
Very Good
1,192 reviews
Check prices

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Turkish Airlines
7.3
Good
4,216 reviews
Korean Air
8.4
Very Good
1,192 reviews
Check prices

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

FAQs about flying to Dulles Intl

  • Can I find cheaper flights to Dulles Intl if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Dulles Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Dulles Intl?

    Based on reviews from Cheapflights users, Korean Air is rated the highest out of the airlines that fly to Dulles Intl.

  • What is the cheapest airport to fly to in Dulles Intl?

    Washington, D.C. Dulles Intl is currently the cheapest airport to fly to in Dulles Intl. One-way flights to Washington, D.C. Dulles Intl typically cost S$ 470, while return flights cost around S$ 90.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around S$ 90, however they can be found for as little as S$ 90.

  • Does Washington, D.C. Dulles Intl have rental cars?

    Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Washington, D.C. Dulles Intl?

    Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 km away from Washington, D.C. Dulles Intl).

See more FAQs

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Dulles Intl.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Dulles Intl flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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