$349 Find Cheap Flights from Washington to Singapore

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Useful Info

Good to know

Low seasonAugust
High seasonDecember
Cheapest flight$349
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 53% increase in price.
Flight from Seattle to Singapore

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 $505.

  • 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 $1,095. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,204 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 $609 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 $609.

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

    The cheapest month for flights from Washington to Singapore is February, when tickets cost $794 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,529 and $1,212 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 23h 15m, 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

9/7Sun
nonstopSingapore Airlines
16h 20mSEA-SIN
11/1Sat
nonstopSingapore Airlines
14h 10mSIN-SEA
$549
9/30Tue
nonstopSingapore Airlines
16h 20mSEA-SIN
10/3Fri
nonstopSingapore Airlines
14h 45mSIN-SEA
$609
9/10Wed
1 stopPhilippine Airlines
28h 20mSEA-SIN
9/17Wed
1 stopPhilippine Airlines
19h 40mSIN-SEA
$690
9/4Thu
1 stopAir Canada
24h 40mPDX-SIN
9/25Thu
1 stopAir Canada
24h 36mSIN-PDX
$694
9/7Sun
1 stopPhilippine Airlines
28h 20mSEA-SIN
9/21Sun
1 stopPhilippine Airlines
19h 40mSIN-SEA
$695
10/28Tue
1 stopAir Canada
30h 45mPDX-SIN
11/11Tue
2 stopsAir Canada
28h 34mSIN-PDX
$696
7/10Thu
1 stopAsiana Airlines
40h 00mSEA-SIN
7/19Sat
1 stopAsiana Airlines
28h 55mSIN-SEA
$780
7/17Thu
1 stopAsiana Airlines
40h 00mSEA-SIN
7/24Thu
1 stopAsiana Airlines
28h 55mSIN-SEA
$781
10/3Fri
2 stops
38h 35mSEA-SIN
10/14Tue
1 stop
20h 06mSIN-SEA
$786
9/30Tue
2 stops
28h 20mSEA-SIN
10/2Thu
2 stops
22h 36mSIN-SEA
$796

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Recent one-way flight deals

9/14Sun
nonstopSingapore Airlines
16h 20mSEA-SIN
$349
9/4Thu
nonstopSingapore Airlines
16h 20mSEA-SIN
$387
8/6Wed
1 stopAsiana Airlines
40h 00mSEA-SIN
$426
10/27Mon
1 stopAsiana Airlines
30h 45mSEA-SIN
$427
7/11Fri
2 stops
40h 50mPDX-SIN
$427
10/28Tue
2 stops
28h 05mSEA-SIN
$431
7/16Wed
2 stopsKorean Air
26h 00mSEA-SIN
$448
7/31Thu
2 stopsKorean Air
25h 20mSEA-SIN
$451
11/27Thu
1 stopAir Canada
24h 45mSEA-SIN
$458
9/18Thu
1 stopAir Canada
24h 40mPDX-SIN
$478

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Last minute flights from Washington to Singapore

Last minute flight, train and bus deals

6/19Thu
multi-stopAir Canada
26h 20mSEA-SIN
6/27Fri
multi-stopAir Canada
27h 21mSIN-SEA
$868
6/19Thu
multi-stopAir Canada
26h 20mSEA-SIN
6/26Thu
multi-stopAir Canada
31h 51mSIN-SEA
$972
6/21Sat
multi-stopKorean Air
50h 00mSEA-SIN
7/1Tue
multi-stopKorean Air
18h 20mSIN-SEA
$1,059
6/21Sat
multi-stopKorean Air
50h 00mSEA-SIN
7/1Tue
multi-stopKorean Air
18h 20mSIN-SEA
$1,061
6/19Thu
multi-stopUnited Airlines
22h 20mSEA-SIN
6/30Mon
multi-stopUnited Airlines
19h 19mSIN-SEA
$1,090
6/19Thu
multi-stopUnited Airlines
22h 20mSEA-SIN
6/29Sun
multi-stopUnited Airlines
28h 31mSIN-SEA
$1,094
6/21Sat
multi-stopQatar Airways
26h 45mSEA-SIN
6/23Mon
multi-stopQatar Airways
25h 55mSIN-SEA
$1,299
6/21Sat
multi-stopQatar Airways
27h 55mSEA-SIN
6/30Mon
multi-stopQatar Airways
24h 35mSIN-SEA
$1,329
6/19Thu
multi-stop
32h 15mSEA-SIN
6/28Sat
multi-stop
33h 55mSIN-SEA
$1,500
6/19Thu
multi-stop
26h 45mSEA-SIN
6/28Sat
multi-stop
33h 55mSIN-SEA
$1,571

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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.
First Class flights to Singaporefrom $8,560
Business Class flights to Singaporefrom $3,434
Prem Econ Class flights to Singaporefrom $1,682
Economy Class flights to Singaporefrom $609

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