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WAS - SIN

$424 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 8/10. 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
Thu 7/11
Thu 7/18

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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 44,212,782 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
7:10 pm - 3:45 pmIAD-SIN
32h 35m1 stop
5:15 pm - 3:45 pmSIN-IAD
34h 30m1 stop
$900SAUDIA
Find Deal
Sat, Aug 31 - Sat, Sep 14
4:40 pm - 5:55 pmIAD-SIN
37h 15m1 stop
11:25 pm - 2:45 pmSIN-IAD
27h 20m1 stop
$907Turkish Airlines
Find Deal
Mon, Sep 16 - Mon, Sep 23
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
2:45 am - 4:10 pmSIN-IAD
25h 25m1 stop
$1,018Qatar Airways
Find Deal
Sun, Oct 6 - Tue, Oct 15
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
2:00 am - 4:55 pmSIN-IAD
26h 55m1 stop
$1,035Qatar Airways
Find Deal
Sun, Sep 29 - Sat, Nov 2
7:45 pm - 3:45 pmDCA-SIN
32h 00m2 stops
2:45 am - 11:36 pmSIN-DCA
32h 51m2 stops
$1,091American Airlines
Find Deal
Sat, Sep 7 - Mon, Sep 16
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
2:45 am - 4:10 pmSIN-IAD
25h 25m1 stop
$1,100American Airlines
Find Deal
Thu, Oct 3 - Sun, Oct 13
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
2:45 am - 4:10 pmSIN-IAD
25h 25m1 stop
$1,148JetBlue
Find Deal
Tue, Oct 8 - Wed, Oct 9
10:55 am - 8:45 pmIAD-SIN
21h 50m1 stop
2:45 am - 4:10 pmSIN-IAD
25h 25m1 stop
$1,184JetBlue
Find Deal
Sat, Aug 31 - Fri, Sep 13
7:00 am - 11:40 pmDCA-SIN
28h 40m2 stops
10:30 pm - 6:25 pmSIN-DCA
31h 55m2 stops
$1,833Delta
Find Deal
Sat, Aug 10 - Sun, Aug 25
6:59 am - 11:40 pmDCA-SIN
28h 41m2 stops
10:30 pm - 2:50 pmSIN-DCA
28h 20m2 stops
$1,885Delta
Find Deal
Fri, Aug 9 - Fri, Aug 23

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 Friday is the most expensive. Flying from Singapore back to Washington, D.C., the best deals are generally found on Tuesday, with Saturday 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 June, where the average cost of tickets is $1,897 and $1,756 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, SAUDIA offered the best one-way deal for that route, at $510. KAYAK users also found Washington, D.C. to Singapore round-trip flights on SAUDIA from $900 and on Turkish Airlines from $907.

Good to know

Low season

April

High season

June

Cheapest flight

$424
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 29% 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 $424 for a one-way ticket and $900 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 oneworld 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 $1,571 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 10277 reviews
7.9Comfort
7.4Food
8.0Entertainment
8.6Crew
8.2Boarding
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Besides the flight cancellation, everything else was prefect. Kudos to Malaysian Airlines.

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.

terrible. Because I felt very unwell during the flight. How do they leave a woman alone in the middle of 2 men? an obese man who was falling on top of me.

They put me on a chair in between two men, one overweight who was almost falling on top of me, and the other was even uncomfortable because I was half falling because of what the other was pushing me. I stayed with. my feet were swollen from fluid retention and from being unable to accommodate myself. it was very uncomfortable. I asked for help but they told me that the flight was full and they couldn't help me. I got off the plane almost unable to walk due to the inflammation. and then at FLL airport I asked for help because I couldn't go to my next flight, which was a connection.

The walk from baggage claim to the taxi is very difficult for older people I will never fly into JFK again. It is physically challenging

Overall fine but both ways for this trip was delayed.

Flight was delayed by almost 5 hours. Suitcase was not loaded despite the flight being near empty (my colleagues’ suitcases did reach JFK, unlike mine). Had to argue on phone to get JetBlue to deliver the case to my hotel. Never again

The flight was excellent. The crew was welcoming and attentive.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

Overnight flight in the old style Business class, but still very good.

I was in business class, without the business class amenities. Large seat with lots of legroom, but no TV or bed. Food was okay, but I did enjoy the Turkish red wine.

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.

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

AA1537 the AC was not working properly. It was very hot and uncomfortable.

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.

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.
8/10Sat
3 stops
35h 45mIAD-SIN
$424
8/10Sat
2 stops
34h 10mIAD-SIN
$453
8/10Sat
1 stopSAUDIA
32h 35mIAD-SIN
$510
9/15Sun
1 stopQatar Airways
21h 50mIAD-SIN
$547
9/2Mon
1 stopQatar Airways
23h 55mIAD-SIN
$557
10/9Wed
1 stopTurkish Airlines
28h 05mIAD-SIN
$574
7/8Mon
1 stopJetBlue
21h 50mIAD-SIN
$841
6/29Sat
1 stopTurkish Airlines
37h 15mIAD-SIN
$1,035
6/17Mon
1 stopJetBlue
23h 55mIAD-SIN
$1,178
6/28Fri
2 stopsDelta
29h 40mBWI-SIN
$1,294

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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.
6/16Sun
multi-stopAmerican Airlines
39h 32mIAD-SIN
7/9Tue
multi-stopAmerican Airlines
25h 25mSIN-IAD
$1,502
6/13Thu
multi-stopJetBlue
21h 50mIAD-SIN
6/15Sat
multi-stopJetBlue
26h 00mSIN-IAD
$1,522
6/16Sun
multi-stopQatar Airways
25h 45mDCA-SIN
7/10Wed
multi-stopQatar Airways
33h 43mSIN-DCA
$1,794
6/16Sun
multi-stopQatar Airways
25h 45mDCA-SIN
7/9Tue
multi-stopQatar Airways
49h 43mSIN-DCA
$1,796
6/14Fri
multi-stopUnited Airlines
23h 42mBWI-SIN
6/22Sat
multi-stopUnited Airlines
32h 25mSIN-BWI
$2,245
6/15Sat
multi-stopTurkish Airlines
28h 05mIAD-SIN
8/1Thu
multi-stopTurkish Airlines
27h 20mSIN-IAD
$2,306
6/14Fri
multi-stopUnited Airlines
23h 42mBWI-SIN
6/22Sat
multi-stopUnited Airlines
31h 42mSIN-BWI
$2,321
6/15Sat
multi-stopTurkish Airlines
37h 15mIAD-SIN
8/10Sat
multi-stopTurkish Airlines
27h 20mSIN-IAD
$2,351
6/14Fri
multi-stopDelta
29h 40mBWI-SIN
6/21Fri
multi-stopDelta
34h 12mSIN-BWI
$4,460
6/15Sat
multi-stopDelta
34h 55mBWI-SIN
8/9Fri
multi-stopDelta
34h 10mSIN-BWI
$5,738

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Flights to Singapore

Destination:

Singapore (SIN)Singapore

Return flight deals:

Singapore - Washington, D.C.

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