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S$ 625+ 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 15-10. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
1 nov. — 8 nov.1
1 adult
1 adult, Economy

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 2 octobre 2025.

Return from

S$ 1,131

One-way from

S$ 634

Popular in

February

Cheapest in

September

Average price

S$ 1,385
Air Canada
  • Air Canada
  • 16-10-25-10
  • 4 total stops
  • 75h 49m total
  • Singapore to Washington, D.C.
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20-10
  • 20-10
  • 3 total stops
  • 54h 50m total
  • Singapore to Washington, D.C.
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Highest demand for flights based on searches. 12% potential increase in price (S$ 306 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (S$ 122 potential savings vs. average return price).
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Average for return flights in October 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 2 octobre 2025.

jeu. 16-1009:10SIN - IAD
2 stops36h 28mAir Canada
sam. 25-1017:22IAD - SIN
2 stops49h 38mAir Canada
Deal found 30-9S$ 1,140
lun. 27-1010:40SIN - IAD
1 stop36h 10mKorean Air
dim. 9-1111:50IAD - SIN
1 stop23h 20mKorean Air
Deal found 30-9S$ 1,189
mer. 26-1110:40SIN - IAD
1 stop36h 10mKorean Air
ven. 5-1211:50IAD - SIN
1 stop28h 10mKorean Air
Deal found 1-10S$ 1,220
mar. 28-1001:35SIN - IAD
1 stop21h 15mKorean Air
mer. 5-1111:50IAD - SIN
1 stop23h 20mKorean Air
Deal found 1-10S$ 1,229
lun. 27-1010:40SIN - IAD
2 stops25h 00mDelta
dim. 9-1106:03IAD - SIN
2 stops29h 07mDelta
Deal found 1-10S$ 1,274
mer. 29-1023:25SIN - IAD
1 stop25h 20mTurkish Airlines
mer. 5-1121:15IAD - SIN
1 stop23h 45mTurkish Airlines
Deal found 1-10S$ 1,309
lun. 27-1011:40SIN - IAD
1 stop37h 05mTurkish Airlines
dim. 9-1121:15IAD - SIN
1 stop22h 30mTurkish Airlines
Deal found 1-10S$ 1,313
jeu. 16-1010:15SIN - IAD
1 stop45h 30mTurkish Airlines
mer. 5-1121:15IAD - SIN
1 stop23h 45mTurkish Airlines
Deal found 29-9S$ 1,314
jeu. 13-1123:55SIN - IAD
1 stop31h 35mMultiple Airlines
jeu. 20-1113:30IAD - SIN
2 stops38h 50mMultiple Airlines
Deal found 29-9S$ 1,318
jeu. 13-1110:25SIN - IAD
1 stop45h 55mTurkish Airlines
jeu. 20-1113:30IAD - SIN
1 stop30h 15mTurkish Airlines
Deal found 29-9S$ 1,331

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 2 octobre 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

lun. 27-10

10:40-10:50

1 stop36h 10m

Washington, D.C. Dulles Intl

dim. 9-11

11:50-00:10

1 stop23h 20m

S$ 1,189

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

mer. 11-3

22:30-10:50

1 stop24h 20m

Washington, D.C. Dulles Intl

dim. 15-3

12:50-00:10

1 stop23h 20m

S$ 1,272

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

lun. 27-10

10:40-23:40

2 stops25h 00m

Washington, D.C. Dulles Intl

dim. 9-11

07:01-00:10

2 stops28h 09m

S$ 1,274

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

mer. 26-11

22:30-19:26

2 stops33h 56m

Washington, D.C. Dulles Intl

ven. 5-12

07:15-00:10

2 stops27h 55m

S$ 1,274

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

dim. 8-2

01:35-21:13

2 stops32h 38m

Washington, D.C. Dulles Intl

lun. 23-2

07:15-05:00

2 stops32h 45m

S$ 1,274

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

dim. 16-11

10:25-11:45

1 stop38h 20m

Washington, D.C. Dulles Intl

dim. 23-11

21:15-08:45

1 stop22h 30m

S$ 1,321

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

lun. 2-2

11:40-11:45

1 stop37h 05m

Washington, D.C. Dulles Intl

mer. 29-4

13:20-08:40

1 stop31h 20m

S$ 1,383

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

jeu. 16-10

17:10-16:10

3 stops35h 00m

Washington, D.C. Dulles Intl

mer. 5-11

21:15-17:20

2 stops31h 05m

S$ 1,393

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

ven. 14-11

19:40-19:20

2 stops36h 40m

Washington, D.C. Dulles Intl

ven. 21-11

13:30-17:20

2 stops38h 50m

S$ 1,401

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

lun. 20-10

19:45-19:45

2 stops36h 00m

S$ 689

Flights are sorted by cheapest return flights first.

Deals found on 1-10

Showing 1-10 of 19 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

When is the best time to book a flight to Dulles Intl?

Use this chart to determine the optimal time to book a return flight from Singapore to Dulles Intl. Price data was last updated on 26 September 2025.

The price you pay for your flight to Dulles Intl may vary depending on when you book. For the best chance of a lower fare, look to book 38 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 2 octobre 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
1,143 reviews
Check prices

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

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
1,143 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

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
3,639 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

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
8,929 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

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
3,984 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

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
2,935 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

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$ 480, 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$ 71, however they can be found for as little as S$ 71.

  • 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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