S$ 510 Find Cheap Flights from Washington to Singapore

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Good to know

Low season

August

High season

December

Cheapest flight

S$ 510
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly (48% 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.

  • How many airports are there in Singapore?

    There are 2 airports in Singapore. The busiest airport is Singapore Changi Airport (SIN), with 99% of all flights arriving there.

  • 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 S$ 463.

  • 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$ 1,480. On the other hand, the most expensive day to fly is Tuesday, when return prices are S$ 1,480 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$ 1,109 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$ 1,109.

  • 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$ 1,144 (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$ 2,170 and S$ 1,932 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

  • How many cities have direct flights to Singapore?

    From Washington, there are direct flights to Singapore from one city. This city is Seattle and there are 4 direct flights each week.

  • How many direct flights to Singapore are there each day?

    There are around 1 direct flights from within Washington to Singapore every day. All flights depart in the morning.

  • How many direct flights to Singapore are there each week?

    Each week there are around 4 direct flights from within Washington to Singapore. The most common day for departures is Tuesday, with 25% of flights taking off on this day.

  • How long is the flight to Singapore?

    An average direct flight from Washington to Singapore takes 18h 46m, covering a distance of 21072 km. The shortest route is Seattle (SEA) to Singapore (SIN) with an average flight time of 16h 20m.

  • How many long-haul flights are there to Singapore each week?

    There aren’t any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Singapore. Instead, there are 4 long-haul flights (6-12 hour flight duration), with the most arriving from Seattle.

  • 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).

See more FAQs

Book cheap flights from Washington to Singapore

Recent return flight deals

7-9Sun
1 stopPhilippine Airlines
22h 45mSEA-SIN
21-9Sun
1 stopPhilippine Airlines
19h 40mSIN-SEA
S$ 891
4-5Sun
1 stopPhilippine Airlines
32h 45mSEA-SIN
11-5Sun
1 stopPhilippine Airlines
19h 40mSIN-SEA
S$ 901
1-5Thu
1 stopAir Canada
25h 10mSEA-SIN
8-5Thu
1 stopAir Canada
20h 03mSIN-SEA
S$ 939
1-5Thu
1 stopAir Canada
30h 05mSEA-SIN
8-5Thu
1 stopAir Canada
18h 48mSIN-SEA
S$ 940
23-4Wed
1 stopAsiana Airlines
40h 15mSEA-SIN
23-5Fri
1 stopAsiana Airlines
28h 40mSIN-SEA
S$ 969
31-3Mon
1 stopUnited Airlines
30h 35mSEA-SIN
14-4Mon
1 stopUnited Airlines
19h 18mSIN-SEA
S$ 993
11-5Sun
2 stops
38h 10mPDX-SIN
29-5Thu
1 stop
24h 35mSIN-PDX
S$ 1,003
31-3Mon
2 stopsUnited Airlines
26h 51mSEA-SIN
14-4Mon
2 stopsUnited Airlines
31h 36mSIN-SEA
S$ 1,011
4-5Sun
2 stops
28h 10mSEA-SIN
11-5Sun
1 stop
28h 03mSIN-SEA
S$ 1,013
13-4Sun
1 stopAsiana Airlines
40h 15mSEA-SIN
2-5Fri
1 stopAsiana Airlines
28h 40mSIN-SEA
S$ 1,162

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Recent one-way flight deals

4-9Thu
directSingapore Airlines
16h 20mSEA-SIN
S$ 510
26-3Wed
1 stopUnited Airlines
21h 30mPDX-SIN
S$ 546
4-9Thu
1 stopKorean Air
25h 10mSEA-SIN
S$ 570
4-9Thu
2 stopsANA
26h 41mSEA-SIN
S$ 592
22-4Tue
1 stop
36h 34mSEA-SIN
S$ 596
17-4Thu
1 stopKorean Air
40h 05mSEA-SIN
S$ 608
26-4Sat
1 stop
36h 34mSEA-SIN
S$ 613
6-5Tue
1 stopAir Canada
20h 50mSEA-SIN
S$ 634
27-3Thu
2 stopsAir Canada
29h 10mSEA-SIN
S$ 637
26-5Mon
1 stopANA
23h 10mSEA-SIN
S$ 883

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Last minute flights from Washington to Singapore

Last minute flight, train and bus deals

25-3Tue
multi-stop
25h 50mSEA-SIN
31-3Mon
multi-stop
34h 03mSIN-SEA
S$ 1,122
25-3Tue
multi-stop
25h 10mSEA-SIN
31-3Mon
multi-stop
34h 03mSIN-SEA
S$ 1,123
25-3Tue
multi-stopUnited Airlines
22h 20mSEA-SIN
31-3Mon
multi-stopUnited Airlines
19h 58mSIN-SEA
S$ 1,187
25-3Tue
multi-stopUnited Airlines
25h 16mSEA-SIN
31-3Mon
multi-stopUnited Airlines
19h 58mSIN-SEA
S$ 1,192
24-3Mon
multi-stopSingapore Airlines
30h 30mSEA-SIN
27-3Thu
multi-stopSingapore Airlines
34h 37mSIN-SEA
S$ 1,499
24-3Mon
multi-stopSingapore Airlines
30h 30mSEA-SIN
27-3Thu
multi-stopSingapore Airlines
34h 37mSIN-SEA
S$ 1,694
25-3Tue
multi-stopAlaska Airlines
32h 35mSEA-SIN
30-3Sun
multi-stopAlaska Airlines
32h 24mSIN-SEA
S$ 1,734
24-3Mon
multi-stopChina Airlines
20h 55mSEA-SIN
30-3Sun
multi-stopChina Airlines
32h 30mSIN-SEA
S$ 1,793
25-3Tue
multi-stopAlaska Airlines
30h 50mSEA-SIN
30-3Sun
multi-stopAlaska Airlines
32h 24mSIN-SEA
S$ 1,796
24-3Mon
multi-stopChina Airlines
20h 55mSEA-SIN
4-4Fri
multi-stopChina Airlines
32h 30mSIN-SEA
S$ 6,918

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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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