$348 Find Cheap Flights from Washington to Singapore

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Useful Info
Useful Info

Good to know

Low seasonAugust
High seasonDecember
Cheapest flight$348
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 50% increase in price.
Flight from Seattle to Singapore

Flights from Washington to Singapore: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Washington to Singapore 
Verified travelerFlew with Singapore AirlinesSEA-SINAug 2024
If you need special meals book them early
JeffFlew with Singapore AirlinesSEA-SINJan 2024
Delta & Alaska have best boarding process! Singapore airlines was ok!

FAQs for booking flights from Washington to Singapore

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington 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 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 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 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 to Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Singapore?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Singapore is Singapore Changi Airport (SIN), with an average flight price of $413.

  • What is the cheapest day to fly to Singapore?

    Based on KAYAK data, the cheapest day to fly to Singapore is Tuesday where round-trip tickets can be as cheap as $1,089. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,207 on average.

  • What is the cheapest time of day to fly to Singapore?

    The cheapest time of day to fly to Singapore is generally in the afternoon, when round-trip flights cost $1,089 on average. Morning departures are around 3% cheaper than evening flights, on average. The most expensive time of day to fly to Singapore is generally at night, which is peak travel time and where the average cost of a ticket is $1,226.

  • What is the cheapest flight to Singapore?

    The cheapest ticket to Singapore from Washington found in the last 72 hours was to Singapore, at $651 round-trip. The most popular route is Seattle (SEA) to Singapore (SIN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $651.

  • What is the cheapest month to fly from Washington to Singapore?

    The cheapest month for flights from Washington to Singapore is March, when tickets cost $835 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,603 and $1,384 respectively.

  • How far in advance should I book a flight from Washington to Singapore?

    To get a below average price on the flight from Washington to Singapore, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

  • How long is the flight to Singapore?

    An average nonstop flight from Washington to Singapore takes 20h 56m, covering a distance of 8136 miles. The shortest route is Seattle (SEA) to Singapore (SIN) with an average flight time of 16h 20m.

  • What is the most popular destination in Singapore?

    Based on KAYAK flight searches, the most popular destination is Singapore (100% of total searches to Singapore).

Book cheap flights from Washington to Singapore

Recent round-trip flight deals

9/16Tue
nonstopSingapore Airlines
16h 20mSEA-SIN
9/30Tue
nonstopSingapore Airlines
14h 45mSIN-SEA
$646
9/7Sun
1 stopPhilippine Airlines
28h 20mSEA-SIN
9/21Sun
1 stopPhilippine Airlines
23h 50mSIN-SEA
$694
9/16Tue
1 stopAir Canada
25h 10mSEA-SIN
9/30Tue
1 stopAir Canada
24h 26mSIN-SEA
$707
9/4Thu
1 stopAir Canada
30h 05mPDX-SIN
9/25Thu
1 stopAir Canada
24h 36mSIN-PDX
$707
9/23Tue
1 stop
24h 40mPDX-SIN
10/8Wed
2 stops
25h 46mSIN-PDX
$747
9/16Tue
2 stops
28h 00mPDX-SIN
9/30Tue
2 stops
26h 31mSIN-PDX
$751
5/13Tue
1 stopAsiana Airlines
40h 15mSEA-SIN
5/20Tue
1 stopAsiana Airlines
28h 40mSIN-SEA
$831
10/27Mon
1 stopAsiana Airlines
40h 55mSEA-SIN
11/5Wed
1 stopAsiana Airlines
29h 25mSIN-SEA
$838
5/19Mon
1 stopKorean Air
25h 10mSEA-SIN
5/25Sun
1 stopKorean Air
27h 10mSIN-SEA
$847
5/13Tue
2 stopsKorean Air
30h 40mSEA-SIN
5/19Mon
1 stopKorean Air
24h 30mSIN-SEA
$889

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Recent one-way flight deals

9/4Thu
nonstopSingapore Airlines
16h 20mSEA-SIN
$348
8/10Sun
nonstopSingapore Airlines
16h 20mSEA-SIN
$372
8/9Sat
2 stopsUnited Airlines
28h 20mPDX-SIN
$409
9/4Thu
1 stopKorean Air
25h 10mSEA-SIN
$427
9/4Thu
2 stopsKorean Air
26h 25mSEA-SIN
$428
5/6Tue
1 stopAsiana Airlines
40h 15mSEA-SIN
$454
8/20Wed
1 stopAsiana Airlines
40h 00mSEA-SIN
$464
9/18Thu
1 stopAir Canada
30h 05mPDX-SIN
$475
8/19Tue
2 stopsUnited Airlines
32h 30mSEA-SIN
$476
5/15Thu
1 stopAir Canada
34h 35mSEA-SIN
$513

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Last minute flights from Washington to Singapore

Last minute flight, train and bus deals

5/1Thu
multi-stopKorean Air
31h 55mPDX-SIN
5/7Wed
multi-stopKorean Air
28h 40mSIN-PDX
$808
5/3Sat
multi-stopUnited Airlines
27h 00mSEA-SIN
5/5Mon
multi-stopUnited Airlines
19h 19mSIN-SEA
$940
5/3Sat
multi-stop
23h 10mSEA-SIN
5/5Mon
multi-stop
17h 10mSIN-SEA
$1,124
5/2Fri
multi-stopSTARLUX Airlines
20h 25mSEA-SIN
5/5Mon
multi-stopSTARLUX Airlines
17h 10mSIN-SEA
$1,313
5/3Sat
multi-stop
33h 00mSEA-SIN
5/5Mon
multi-stop
35h 05mSIN-SEA
$1,342
5/2Fri
multi-stopSTARLUX Airlines
20h 25mSEA-SIN
5/5Mon
multi-stopSTARLUX Airlines
17h 10mSIN-SEA
$1,347
5/1Thu
multi-stopAir Canada
33h 50mPDX-SIN
5/8Thu
multi-stopAir Canada
20h 30mSIN-PDX
$1,453
5/3Sat
nonstopSingapore Airlines
16h 20mSEA-SIN
5/5Mon
multi-stopSingapore Airlines
29h 13mSIN-SEA
$1,722
5/3Sat
nonstopSingapore Airlines
16h 20mSEA-SIN
5/5Mon
multi-stopSingapore Airlines
29h 13mSIN-SEA
$1,799
5/2Fri
multi-stopAir Canada
46h 35mPDX-SIN
5/13Tue
multi-stopAir Canada
24h 35mSIN-PDX
$5,150

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Everything you need to know for your flight to Singapore

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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