$435 Find Cheap Flights from Washington Dulles Airport to Singapore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Singapore departing on 3/5. 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.
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Best Singapore Flight Deals from Dulles Intl

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Singapore
Singapore1 stop$845

Good to know

Low season

August

High season

February

Cheapest flight

$435
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Washington Dulles Airport to Singapore

FAQs - booking Singapore flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Singapore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Singapore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Singapore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Singapore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Singapore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to Singapore with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Singapore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Singapore

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly from Washington, D.C. is November.
  • Morning departure is around 13% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Dulles Intl to Singapore

Need help choosing which airline to fly with from Dulles Intl to Singapore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1039 reviews
8.2Entertainment
8.5Boarding
8.2Comfort
8.1Food
8.7Crew
Airline reviews

Need to have space for Cary on when traveler boarding any zone

6.0 GoodAnonymous, Feb 2025CHS - ATL
Read more Korean Air reviews

Need to have space for Cary on when traveler boarding any zone

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

everything was fine, would have liked better food but it was warm, great choices for movies

the water for tea could have been hot, entertainment was awful, lots of old movies and TV shows

The food is always good and that flight was particularly good.

Unlimited drinks and snacks on this long flight. Very courteous Korean staff !!!

I like it when the plane have waited for passengers like us who are trying to catch the plane. Detroit was my mom's port of entry we spent too much time looking for our luggages at baggage claim which no problem. But then the problem occur after the immigration when the homeland security agents forgot to give us our passports which it took so long to find them and I was very anxious because we might not be able to catch our flights but luckily the plane to knoxville still sitting there and waiting for us. Praise the Lord for everything.

I took several flights that day, this was the only flight that was absolutely freezing!! It was so cold.

Good. Obviously there is a slightly condescending attitude of all American workers towards their customers but other than that all good.

Glad you had Bibimbap which tasted much better than mesh potato or pasta.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

Check in desk people constrained by fear. Obvious typo on Uganda visa, even though approved, caused loss of flight. Something is definitely wrong with this system.

Between Air India and Qatar my luggage was lost for three days. I eventually found my own luggage location using the Apple Air Tag. Air India used a paper form to report my lost luggage. I could never get past getting past luggage personnel with my report number before they would hang up on me. Only after them specifically telling Air India at Chandigarh airport where my luggage was located which was right under their noses did they react. After three days I finally received my luggage. The Air India luggage folks didn’t seem proactive in finding the luggage’s rightful owner.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

Very well organized both boarding and deplaning. Very satisfied with the service I received.

I rate it is good we had a 4-hour travel delay at one point but JetBlue gave out food vouchers and travel points credits for another flight so they try to make up for it

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

Flight was on time arrived at the destination 10min early they kept in touch via email

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

UA28 was good service and meals. UA is upgraded, I would like to book for next flight by UA Thanks Liao

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

Liked nothing. As per previous segment it was delay delay delay.

I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

EVen warmer in the plane it think it was 24+ degrees

The flying experience was great. The flight was on time with no boarding issues during a peak travel period. The short cut baggage drop and process was not smooth and efficient at Dulles.

Fast checkin with the self serve terminal, good communication at the boarding gate.

Very friendly staff. The flight was on time. Need a bit heavy covers/blankets. It can get colder with a thin blanket.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

Seats are not clean inside the very dirty and need to improve

Professional & courteous cabin crew. Food was very good even in economy class

7 stars hospitality and an excellent service by the Turkish Airline entire team. Somehow, our membership numbers for mileage points were not indicated on our boarding passes issued at O’Hare Airport by the Turkish Airlines check in desk. During transit in Istanbul, I brought to attention of customer service Turkish Airlines. Please have our mileage points posted to our membership account from O’Hare Chicago to Lahore for both my wife Kaukab Shirazi Thank you

Terrible boarding experience, with an incomprehensible assignment of priorities. “Fast track” was the slowest. Poor system planning.

Book cheap flights from Washington, D.C. to Singapore

Recent round-trip flight deals

3/20Thu
1 stopSAUDIA
32h 20mIAD-SIN
3/26Wed
1 stopSAUDIA
34h 45mSIN-IAD
$845
3/11Tue
1 stopTurkish Airlines
29h 45mIAD-SIN
3/20Thu
1 stopTurkish Airlines
33h 05mSIN-IAD
$847
4/1Tue
1 stopQatar Airways
29h 55mIAD-SIN
5/11Sun
1 stopQatar Airways
24h 30mSIN-IAD
$976
3/2Sun
2 stopsQatar Airways
24h 55mIAD-SIN
3/12Wed
1 stopQatar Airways
25h 40mSIN-IAD
$994
4/1Tue
1 stopJetBlue
29h 55mIAD-SIN
4/7Mon
1 stopJetBlue
24h 30mSIN-IAD
$1,066
3/27Thu
1 stopJetBlue
23h 40mIAD-SIN
4/4Fri
1 stopJetBlue
24h 30mSIN-IAD
$1,103
3/3Mon
2 stopsUnited Airlines
30h 15mIAD-SIN
3/12Wed
2 stopsUnited Airlines
25h 02mSIN-IAD
$1,197
3/3Mon
2 stopsDelta
29h 05mIAD-SIN
3/11Tue
2 stopsDelta
35h 01mSIN-IAD
$1,206
3/3Mon
2 stopsDelta
29h 10mIAD-SIN
3/11Tue
2 stopsDelta
33h 57mSIN-IAD
$1,207
3/6Thu
2 stopsUnited Airlines
29h 33mIAD-SIN
3/17Mon
2 stopsUnited Airlines
25h 26mSIN-IAD
$1,210

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Recent one-way flight deals

3/5Wed
2 stops
43h 45mIAD-SIN
$435
3/5Wed
2 stopsIndiGo
30h 55mIAD-SIN
$464
2/27Thu
1 stopQatar Airways
29h 50mIAD-SIN
$467
2/25Tue
1 stopQatar Airways
23h 40mIAD-SIN
$482
2/25Tue
1 stopEtihad Airways
23h 05mIAD-SIN
$524
2/25Tue
1 stopEtihad Airways
23h 05mIAD-SIN
$525
2/25Tue
2 stopsDelta
29h 05mIAD-SIN
$681
2/25Tue
2 stopsDelta
29h 05mIAD-SIN
$682
2/26Wed
2 stopsUnited Airlines
29h 25mIAD-SIN
$687
3/1Sat
2 stopsUnited Airlines
37h 35mIAD-SIN
$752

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Last minute flights from Dulles Intl to Singapore

Last minute flight, train and bus deals

2/22Sat
multi-stopTurkish Airlines
38h 35mIAD-SIN
2/28Fri
multi-stopTurkish Airlines
38h 50mSIN-IAD
$1,041
2/21Fri
multi-stop
21h 40mIAD-SIN
3/1Sat
multi-stop
34h 45mSIN-IAD
$1,070
2/24Mon
multi-stopAlaska Airlines
36h 10mIAD-SIN
3/11Tue
multi-stopAlaska Airlines
42h 40mSIN-IAD
$1,119
2/24Mon
multi-stopIndiGo
38h 20mIAD-SIN
3/11Tue
multi-stopIndiGo
36h 50mSIN-IAD
$1,123
2/24Mon
multi-stopQatar Airways
29h 50mIAD-SIN
3/11Tue
multi-stopQatar Airways
27h 55mSIN-IAD
$1,126
2/21Fri
multi-stop
24h 55mIAD-SIN
3/1Sat
multi-stop
34h 45mSIN-IAD
$1,144
2/24Mon
multi-stopKorean Air
28h 10mIAD-SIN
3/10Mon
multi-stopKorean Air
21h 20mSIN-IAD
$1,155
2/21Fri
multi-stop
21h 40mIAD-SIN
2/28Fri
multi-stop
25h 40mSIN-IAD
$1,186
2/23Sun
multi-stopUnited Airlines
27h 03mIAD-SIN
2/25Tue
multi-stopUnited Airlines
26h 11mSIN-IAD
$1,247
2/23Sun
multi-stopJetBlue
21h 40mIAD-SIN
2/24Mon
multi-stopJetBlue
25h 40mSIN-IAD
$1,331

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Everything you need to know for your flight from Dulles Intl to Singapore

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