S$ 427 Find Cheap Flights from Washington to Singapore

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Useful Info
Useful Info

Good to know

Low season

August

High season

December

Cheapest flight

S$ 427
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly (50% more expensive on average)
Flight from Seattle to Singapore

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

Insights shared by verified travellers 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 travellers 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 return 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.

  • What is the cheapest day to fly to Singapore?

    Based on KAYAK data, the cheapest day to fly to Singapore is Tuesday when return tickets can be as cheap as S$ 1,455. On the other hand, the most expensive day to fly is Tuesday, when return prices are S$ 1,455 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 morning, when round-trip flights cost S$ 1,109 on average. The most expensive time of day to fly to Singapore is generally in the afternoon, which is peak travel time and where the average cost of a ticket is S$ 1,448.

  • What is the cheapest flight to Singapore?

    The cheapest ticket to Singapore from Washington found in the last 72 hours was to Singapore, at S$ 1,784 return. The most popular route is Seattle (SEA) to Singapore (SIN) and the cheapest return airline ticket found on this route in the last 72 hours was S$ 1,784.

  • 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 S$ 1,096 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is S$ 2,104 and S$ 1,816 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 direct flight from Washington to Singapore takes 19h 55m, covering a distance of 21072 km. 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 return flight deals

7-9Sun
1 stopPhilippine Airlines
22h 45mSEA-SIN
21-9Sun
1 stopPhilippine Airlines
23h 50mSIN-SEA
S$ 911
7-9Sun
directSingapore Airlines
16h 20mSEA-SIN
21-9Sun
directSingapore Airlines
14h 45mSIN-SEA
S$ 912
23-9Tue
1 stopAir Canada
26h 20mSEA-SIN
7-10Tue
1 stopAir Canada
18h 55mSIN-SEA
S$ 928
4-9Thu
1 stopAir Canada
24h 40mPDX-SIN
25-9Thu
1 stopAir Canada
20h 36mSIN-PDX
S$ 928
23-9Tue
1 stop
30h 05mPDX-SIN
8-10Wed
2 stops
28h 11mSIN-PDX
S$ 980
15-10Wed
2 stops
36h 40mPDX-SIN
28-10Tue
2 stops
22h 14mSIN-PDX
S$ 990
13-5Tue
1 stopAsiana Airlines
40h 15mSEA-SIN
20-5Tue
1 stopAsiana Airlines
28h 40mSIN-SEA
S$ 1,091
23-9Tue
1 stopKorean Air
19h 50mSEA-SIN
6-10Mon
1 stopKorean Air
24h 30mSIN-SEA
S$ 1,133
23-9Tue
2 stopsKorean Air
26h 25mSEA-SIN
6-10Mon
1 stopKorean Air
24h 30mSIN-SEA
S$ 1,138
25-8Mon
1 stopAsiana Airlines
40h 00mSEA-SIN
30-8Sat
1 stopAsiana Airlines
28h 55mSIN-SEA
S$ 1,161

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Recent one-way flight deals

24-8Sun
directSingapore Airlines
16h 20mSEA-SIN
S$ 427
4-9Thu
directSingapore Airlines
16h 20mSEA-SIN
S$ 458
4-9Thu
1 stopKorean Air
25h 10mSEA-SIN
S$ 560
4-9Thu
2 stopsKorean Air
26h 25mSEA-SIN
S$ 562
23-8Sat
2 stops
25h 55mSEA-SIN
S$ 581
6-5Tue
1 stopAsiana Airlines
40h 15mSEA-SIN
S$ 596
7-7Mon
2 stopsDelta
23h 43mPDX-SIN
S$ 601
14-10Tue
2 stops
26h 25mSEA-SIN
S$ 602
12-7Sat
1 stopAsiana Airlines
40h 00mSEA-SIN
S$ 618
8-7Tue
1 stopDelta
25h 05mSEA-SIN
S$ 634

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Last minute flights from Washington to Singapore

Last minute flight, train and bus deals

30-4Wed
multi-stopUnited Airlines
20h 10mSEA-SIN
8-5Thu
multi-stopUnited Airlines
24h 30mSIN-SEA
S$ 1,168
30-4Wed
multi-stopUnited Airlines
26h 51mSEA-SIN
8-5Thu
multi-stopUnited Airlines
24h 06mSIN-SEA
S$ 1,173
3-5Sat
multi-stopKorean Air
19h 50mSEA-SIN
15-5Thu
multi-stopKorean Air
24h 30mSIN-SEA
S$ 1,190
3-5Sat
multi-stopKorean Air
30h 50mSEA-SIN
16-5Fri
multi-stopKorean Air
27h 10mSIN-SEA
S$ 1,197
3-5Sat
multi-stopKorean Air
30h 50mSEA-SIN
16-5Fri
multi-stopKorean Air
30h 21mSIN-SEA
S$ 1,205
29-4Tue
multi-stopSTARLUX Airlines
20h 25mSEA-SIN
8-5Thu
multi-stopSTARLUX Airlines
17h 10mSIN-SEA
S$ 1,339
30-4Wed
multi-stopEVA Air
21h 20mSEA-SIN
6-5Tue
multi-stopEVA Air
36h 33mSIN-SEA
S$ 1,386
1-5Thu
multi-stop
33h 45mSEA-SIN
5-5Mon
multi-stop
32h 30mSIN-SEA
S$ 1,396
30-4Wed
multi-stop
19h 30mSEA-SIN
6-5Tue
multi-stop
17h 10mSIN-SEA
S$ 1,518
2-5Fri
multi-stopSTARLUX Airlines
20h 25mSEA-SIN
16-5Fri
multi-stopSTARLUX Airlines
17h 10mSIN-SEA
S$ 1,648

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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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