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WAS - SIN

$600 Find cheap flights from Washington, D.C. 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 Washington, D.C. to Singapore departing on 7/28. 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.
1 adult
0 bags
Wed 6/5
Wed 6/12

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Singapore.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Singapore.
In the last 7 days travelers have searched 42,573,820 times on KAYAK, and here is why:

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Cheap flight deals from Washington, D.C. to Singapore (WAS-SIN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Singapore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:30 am - 5:30 amDCA-SIN
30h 00m2 stops
1:45 am - 5:06 pmSIN-DCA
27h 21m2 stops
$1,069Cathay Pacific
Find Deal
Thu, Sep 5 - Wed, Sep 11
6:00 am - 11:40 pmDCA-SIN
29h 40m2 stops
1:10 am - 9:15 pmSIN-DCA
32h 05m2 stops
$1,102Korean Air
Find Deal
Mon, Sep 16 - Tue, Sep 24
7:00 am - 11:40 pmDCA-SIN
28h 40m2 stops
10:30 pm - 4:01 pmSIN-DCA
29h 31m2 stops
$1,110Delta
Find Deal
Mon, Sep 16 - Mon, Sep 23
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
10:30 am - 8:45 amSIN-IAD
34h 15m1 stop
$1,127Qatar Airways
Find Deal
Tue, May 14 - Mon, Jun 17
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
2:15 am - 8:45 amSIN-IAD
42h 30m1 stop
$1,130Qatar Airways
Find Deal
Tue, May 14 - Sat, Jun 15
7:30 am - 11:40 pmDCA-SIN
28h 10m2 stops
10:30 pm - 6:14 pmSIN-DCA
31h 44m2 stops
$1,147Delta
Find Deal
Sat, Aug 31 - Sat, Sep 14
9:05 pm - 9:00 amIAD-SIN
23h 55m1 stop
2:15 am - 4:10 pmSIN-IAD
25h 55m1 stop
$1,225JetBlue
Find Deal
Fri, May 10 - Sat, May 18
4:40 pm - 8:45 amIAD-SIN
28h 05m1 stop
10:15 am - 2:45 pmSIN-IAD
40h 30m1 stop
$1,252Turkish Airlines
Find Deal
Thu, May 9 - Fri, Jun 7
9:50 pm - 5:55 pmIAD-SIN
32h 05m1 stop
10:15 am - 2:45 pmSIN-IAD
40h 30m1 stop
$1,269Turkish Airlines
Find Deal
Mon, May 20 - Tue, Jun 4
9:05 pm - 9:00 amIAD-SIN
23h 55m1 stop
2:15 am - 4:10 pmSIN-IAD
25h 55m1 stop
$1,282JetBlue
Find Deal
Thu, May 9 - Thu, Jun 6

Flights from Washington, D.C. to Singapore - Travel Insights & Trends

Get data-powered insights and trends into flights from Washington, D.C. to Singapore to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington, D.C. to Singapore?

The average price of all flights from Washington, D.C. to Singapore clicked on KAYAK for each day over the last 12 months.
For Washington, D.C. to Singapore, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Singapore back to Washington, D.C., the best deals are generally found on Tuesday, with Sunday being the most expensive.

What is the cheapest month to fly from Washington, D.C. to Singapore?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. to Singapore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. to Singapore is April, where tickets cost $1,036 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $1,897 and $1,729 respectively.

How far in advance should I book a flight from Washington, D.C. to Singapore?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. to Singapore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. to Singapore, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 52 days before departure.

Which airlines provide the cheapest flights from Washington, D.C. to Singapore?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Delta offered the best one-way deal for that route, at $600. KAYAK users also found Washington, D.C. to Singapore round-trip flights on Cathay Pacific from $1,069 and on Korean Air from $1,102.

Good to know

Low season

April

High season

July

Cheapest flight

$600
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from Washington Dulles Airport to Singapore

When to book flights from Washington, D.C. to Singapore

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Singapore

  • What is the cheapest flight from Washington, D.C. to Singapore?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Singapore was $600 for a one-way ticket and $1,069 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Singapore?

    Yes

  • Which airports will I be using when flying from Washington, D.C. to Singapore?

    There are 2 airports in Washington, D.C. (Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl.) and only 1 airport in Singapore (Singapore Changi). The cheapest flights are generally found on the Washington Dulles Airport to Singapore Changi flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to Singapore?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Singapore?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Singapore, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Singapore from Washington, D.C.?

    Doha is the most popular layover city among KAYAK users traveling from Washington, D.C. to Singapore.

  • Which is the best airline for flights from Washington, D.C. to Singapore, Korean Air or ANA?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Singapore are Korean Air and ANA. With an average price for the route of $1,579 and an overall rating of 8.5, Korean Air is the most popular choice. ANA is also a great choice for the route, with an average price of $2,081 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Singapore.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Singapore from Washington, D.C. 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, D.C. 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 to Singapore with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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 to Singapore from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Washington, D.C. to Singapore

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Singapore. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. 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.
8.0
DeltaOverall score based on 10818 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
7.9Comfort
Airline reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

2.0 MediocreAnonymous, May 2024AVL - LGA
Read more about Delta reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

It was good no problems made it on time for the next flight overseas!

The made us waiting and held our passports and boarding pass making us miss our flights

Not impressed. Only allowed one carry on on such a long flight.

The flight was good but my neighbor had the vent open full power for the whole flight and because the air was blowing from the side instead of from the top and I got very cold and ended up with a sore throat.

Bad experience with the delay n long wait time for connecting flight after missing the connection flight from Doha.

Wore experience due to delay and took me 3 days to reach my destination.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

Excellent will be flying again in May with Qatar. to Botswana.

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Terrible. Flight was cancelled due to the weather in the east and sout east(florida). Did not get any compesation of any kind. According to them, it was not under their control so I lost all the money paid for the 2 fairs from Raleigh, NC to Orlando, Fl.

great flight. Pilot was communicative, flight attendants were excellent. Really nice experience except my tv didn’t work.

Overall, the flight was better than the flight I took to go to Florida, which had a bunch of problems. The crew is really nice and the plane was new so it had a small problem when we were on the runway, but the flight itself was great. They even made some time back up, which is always a good thing.

at the time for boarding the lady just call Group A and no other goups and everybody from A to F go inside without the right turn,and when we get in theres no more spsce for carry on , the ones that get in at not correct group from the back occupy our space !!!!! a mess !!!!

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

I had back trouble prior to my flight and everyone was great about helping me.

Jetblue needs to improve on Onboarding as it seems to always be behind on departing. It never leaves on time. I would recommend to have an earlier Onboarding in order to leave on time and respect your customers time as well.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Excellent service and comfort from the moment you check in. Flight crew is hyper focused on making passengers comfortable and at ease. It’s like a flying hotel!

Only chicken as a meat dish through out the flight

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

On line check in needs a lot of improvement. I tried and gave up.

Food not good, flight attendants not the best, not accommodating very ruff

the female flight attendant was racist towards me. I could tell she treated the two other passengers next to me with more softness.

Oh my god! For an13 hour flight they serve you food just one time. Also don’t be thirsty they give you a little small cup of soda to drink. They seem like their goal is to feed you one so they don’t have to be bothered with you. It quite surprise for such a long flight there are several times to eat at least three and the food was well lackluster. The food and lack of offering drinks which were always hot no ice provided.

The food could be better. The service was okay. Could have done more to provide water throughout the flight.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

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

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Singapore found on KAYAK in the last 72 hours.
7/28Sun
2 stopsDelta
29h 40mIAD-SIN
$600
7/28Sun
2 stopsKorean Air
35h 00mDCA-SIN
$602
6/3Mon
3 stops
59h 56mBWI-SIN
$612
5/18Sat
2 stopsAmerican Airlines
60h 18mIAD-SIN
$696
10/18Fri
2 stopsAmerican Airlines
25h 45mDCA-SIN
$705
5/22Wed
1 stopQatar Airways
21h 50mIAD-SIN
$951
5/26Sun
1 stopQatar Airways
21h 50mIAD-SIN
$968
6/3Mon
1 stopTurkish Airlines
37h 15mIAD-SIN
$982
6/11Tue
1 stopTurkish Airlines
28h 05mIAD-SIN
$983
6/24Mon
1 stopJetBlue
21h 50mIAD-SIN
$1,174

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Last minute flights from Washington, D.C. to Singapore

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Singapore that are departing in the next 10 days.
5/10Fri
multi-stopJetBlue
23h 55mIAD-SIN
5/18Sat
multi-stopJetBlue
25h 55mSIN-IAD
$1,225
5/9Thu
multi-stopAmerican Airlines
33h 30mDCA-SIN
6/7Fri
multi-stopAmerican Airlines
32h 10mSIN-DCA
$1,252
5/9Thu
multi-stopTurkish Airlines
28h 05mIAD-SIN
6/7Fri
multi-stopTurkish Airlines
40h 30mSIN-IAD
$1,252
5/10Fri
multi-stopTurkish Airlines
22h 55mIAD-SIN
5/19Sun
multi-stopTurkish Airlines
45h 40mSIN-IAD
$1,306
5/9Thu
multi-stopQatar Airways
30h 40mIAD-SIN
6/7Fri
multi-stopQatar Airways
26h 30mSIN-IAD
$1,419
5/11Sat
multi-stopQatar Airways
27h 50mIAD-SIN
5/14Tue
multi-stopQatar Airways
34h 15mSIN-IAD
$1,428
5/11Sat
multi-stopDelta
29h 40mIAD-SIN
5/13Mon
multi-stopDelta
28h 18mSIN-IAD
$1,748
5/9Thu
multi-stopUnited Airlines
28h 08mBWI-SIN
6/8Sat
multi-stopUnited Airlines
31h 42mSIN-BWI
$1,820
5/9Thu
multi-stopUnited Airlines
36h 26mBWI-SIN
6/8Sat
multi-stopUnited Airlines
31h 42mSIN-BWI
$1,862
5/9Thu
multi-stopDelta
25h 41mIAD-SIN
6/6Thu
multi-stopDelta
28h 17mSIN-IAD
$1,911

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Flights to Singapore

Destination:

Singapore (SIN)Singapore

Return flight deals:

Singapore - Washington, D.C.

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