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S$ 688+ 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 14-9. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
29 Jul — 5 Aug1
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 29 June 2026.

Thu 15-1017:55
SIN
-
IAD
1 stop37h 35m
Air China
Tue 17-1122:00
IAD
-
SIN
1 stop43h 50m
Air China
Deal found 26-6S$ 1,314
Fri 3-709:00
SIN
-
IAD
1 stop22h 30m
Air China
Fri 10-723:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 24-6S$ 1,325
Thu 15-1007:00
SIN
-
IAD
2 stops25h 25m
Air Canada
Tue 17-1109:55
IAD
-
SIN
2 stops32h 05m
Air Canada
Deal found 26-6S$ 1,470
Sat 11-701:55
SIN
-
IAD
2 stops32h 57m
American Airlines
Wed 15-706:20
IAD
-
SIN
2 stops35h 50m
American Airlines
Deal found 28-6S$ 1,485
Thu 27-821:50
SIN
-
IAD
2 stops28h 12m
Multiple Airlines
Mon 7-907:00
IAD
-
SIN
2 stops29h 20m
Multiple Airlines
Deal found 26-6S$ 1,504
Thu 27-808:05
SIN
-
IAD
2 stops33h 35m
Japan Airlines
Mon 7-907:00
IAD
-
SIN
2 stops29h 20m
Japan Airlines
Deal found 29-6S$ 1,508
Fri 16-1009:00
SIN
-
IAD
1 stop22h 30m
Multiple Airlines
Sun 18-1007:00
IAD
-
SIN
2 stops29h 20m
Multiple Airlines
Deal found 28-6S$ 1,513
Thu 2-707:00
SIN
-
IAD
1 stop35h 22m
Air Canada
Thu 20-815:45
IAD
-
SIN
2 stops25h 30m
Air Canada
Deal found 25-6S$ 1,518
Thu 9-701:55
SIN
-
IAD
2 stops28h 42m
American Airlines
Mon 13-706:14
IAD
-
SIN
2 stops30h 06m
American Airlines
Deal found 25-6S$ 1,560

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 29 June 2026.

Return from

S$ 1,314

One-way from

S$ 688

Popular in

July

Cheapest in

August

Average price

S$ 1,678
Air China
  • Air China
  • 15-10-17-11
  • 2 total stops
  • 81h 25m total
  • Singapore to Washington, D.C.
Search Deals
Air China
  • Air China
  • 14-9
  • 1 total stop
  • 37h 35m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (S$ 214 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (S$ 119 potential savings vs. average return price).
Search Deals
Average for return flights in June 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 29 June 2026.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 27-8

21:50-14:02

2 stops28h 12m

Washington, D.C. Dulles Intl

Mon 7-9

07:00-00:20

2 stops29h 20m

S$ 1,504

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 20-11

08:40-20:10

2 stops24h 30m

Washington, D.C. Dulles Intl

Mon 23-11

09:55-06:55

2 stops32h 00m

S$ 1,640

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 23-7

08:45-07:23

2 stops34h 38m

Washington, D.C. Dulles Intl

Thu 30-7

12:40-06:15

1 stop29h 35m

S$ 1,722

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 26-7

08:45-23:19

2 stops26h 34m

Washington, D.C. Dulles Intl

Sun 2-8

17:55-18:35

1 stop36h 40m

S$ 1,739

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 16-8

20:35-18:59

2 stops34h 24m

Washington, D.C. Dulles Intl

Thu 27-8

08:20-06:40

2 stops34h 20m

S$ 1,816

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 20-11

11:35-11:45

1 stop37h 10m

Washington, D.C. Dulles Intl

Mon 23-11

13:30-09:55

1 stop31h 25m

S$ 1,825

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 1-9

10:25-19:50

1 stop45h 25m

Washington, D.C. Dulles Intl

Wed 30-9

21:45-08:45

1 stop23h 00m

S$ 1,832
Fastest return journey

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 20-11

13:15-20:55

1 stop20h 40m

Washington, D.C. Dulles Intl

Mon 23-11

23:55-12:05

1 stop23h 10m

S$ 1,843

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 16-8

19:40-15:45

3 stops32h 05m

Washington, D.C. Dulles Intl

Thu 27-8

15:10-06:50

2 stops27h 40m

S$ 1,946
Cheapest one-way
Fastest single journey

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 21-7

22:45-14:00

2 stops27h 15m

S$ 965

Flights are sorted by cheapest return flights first.

Deals found on 28-6

Showing 1-10 of 18 resultsSorted by cheapest first
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 Turkish Airlines and Qatar Airways.

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 29 June 2026.
Read reviews from past customers who have flown Korean Air,Turkish Airlines, andQatar Airways 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
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Entertainment

8.2

Crew

8.7

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
1,220 reviews
Korean Air
8.4
Very Good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Entertainment

8.2

Crew

8.7

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
7.4
Good
4,428 reviews
Korean Air
8.4
Very Good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Entertainment

8.2

Crew

8.7

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
7.3
Good
3,738 reviews
Korean Air
8.4
Very Good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Entertainment

8.2

Crew

8.7

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, Turkish Airlines is rated the highest out of the airlines that fly to Dulles Intl.

  • 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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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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