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S$ 685+ 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 22-1. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2025

Find the latest flights to Dulles Intl in 2025, 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 16 November 2025.

Return from

S$ 1,146

One-way from

S$ 685

Popular in

February

Cheapest in

September

Average price

S$ 1,514
Air Canada
  • Air Canada
  • 24-2-10-3
  • 4 total stops
  • 71h 53m total
  • Singapore to Washington, D.C.
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Air China
  • Air China
  • 22-1
  • 1 total stop
  • 31h 35m total
  • Singapore to Washington, D.C.
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Highest demand for flights based on searches. 14% potential increase in price (S$ 265 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (S$ 92 potential savings vs. average return price).
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Average for return flights in November 2025
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Find flight deals to Dulles Intl Airport

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 16 November 2025.

Mon 17-1111:40SIN - IAD
1 stop37h 05mTurkish Airlines
Sun 30-1113:30IAD - SIN
1 stop30h 15mTurkish Airlines
Deal found 16-11S$ 1,311
Thu 27-1117:15SIN - IAD
1 stop38h 15mAir China
Fri 16-122:00IAD - SIN
1 stop43h 50mAir China
Deal found 16-11S$ 1,322
Mon 1-1217:15SIN - IAD
1 stop38h 15mAir China
Fri 16-122:00IAD - SIN
1 stop34h 55mAir China
Deal found 14-11S$ 1,377
Mon 17-1119:25SIN - IAD
1 stop33h 05mMultiple Airlines
Sun 30-1118:10IAD - SIN
2 stops34h 10mMultiple Airlines
Deal found 16-11S$ 1,436
Thu 27-1115:45SIN - IAD
2 stops38h 49mMultiple Airlines
Fri 16-118:04IAD - SIN
2 stops31h 26mMultiple Airlines
Deal found 16-11S$ 1,466
Sun 16-1119:25SIN - IAD
1 stop33h 05mEtihad Airways
Sat 29-1121:10IAD - SIN
1 stop23h 25mEtihad Airways
Deal found 16-11S$ 1,471
Wed 3-1223:25SIN - IAD
1 stop25h 20mTurkish Airlines
Fri 16-113:30IAD - SIN
1 stop30h 15mTurkish Airlines
Deal found 14-11S$ 1,498
Tue 2-1210:25SIN - IAD
1 stop38h 20mTurkish Airlines
Fri 16-113:30IAD - SIN
1 stop30h 15mTurkish Airlines
Deal found 14-11S$ 1,528
Wed 3-1220:00SIN - IAD
2 stops32h 30mMultiple Airlines
Fri 16-113:30IAD - SIN
1 stop30h 15mMultiple Airlines
Deal found 14-11S$ 1,561
Sun 16-1119:25SIN - IAD
1 stop33h 05mMultiple Airlines
Sat 29-1117:30IAD - SIN
2 stops34h 30mMultiple Airlines
Deal found 16-11S$ 1,567

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 16 November 2025.
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

Fri 15-5

21:10-09:45

1 stop24h 35m

Washington, D.C. Dulles Intl

Sat 8-8

15:35-09:15

1 stop29h 40m

S$ 1,218

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 1-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 30-4

15:35-09:15

1 stop29h 40m

S$ 1,248

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 1-3

14:25-05:40

2 stops28h 15m

Washington, D.C. Dulles Intl

Thu 30-4

19:01-12:35

2 stops29h 34m

S$ 1,445

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 15-5

20:40-11:43

2 stops27h 03m

Washington, D.C. Dulles Intl

Sat 8-8

12:20-06:40

1 stop30h 20m

S$ 1,458

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 27-11

15:45-17:34

2 stops38h 49m

Washington, D.C. Dulles Intl

Fri 16-1

18:04-14:30

2 stops31h 26m

S$ 1,466

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 12-3

08:50-11:29

2 stops38h 39m

Washington, D.C. Dulles Intl

Fri 20-3

13:13-07:00

2 stops29h 47m

S$ 1,469

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 2-12

10:25-11:45

1 stop38h 20m

Washington, D.C. Dulles Intl

Fri 16-1

13:30-08:45

1 stop30h 15m

S$ 1,528

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 3-12

20:00-15:30

2 stops32h 30m

Washington, D.C. Dulles Intl

Fri 16-1

13:30-08:45

1 stop30h 15m

S$ 1,561

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 15-5

08:05-07:36

2 stops35h 31m

Washington, D.C. Dulles Intl

Tue 11-8

06:30-00:20

2 stops29h 50m

S$ 1,587

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 14-5

02:00-15:05

2 stops49h 05m

Washington, D.C. Dulles Intl

Sat 8-8

09:00-12:35

2 stops39h 35m

S$ 1,611

Flights are sorted by cheapest return flights first.

Deals found on 13-11

Showing 1-10 of 22 results
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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, United Airlines and Korean Air.

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 16 November 2025.
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
1,166 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

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
1,166 reviews
Korean Air
8.4
Very Good
1,166 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

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
3,664 reviews
Korean Air
8.4
Very Good
1,166 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

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
9,015 reviews
Korean Air
8.4
Very Good
1,166 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

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
4,046 reviews
Korean Air
8.4
Very Good
1,166 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

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!!
Air India
5.5
Fair
2,938 reviews
Korean Air
8.4
Very Good
1,166 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

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.

  • 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$ 483, while return flights cost around S$ 92.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around S$ 92, however they can be found for as little as S$ 92.

  • 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.

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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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