SIN

$265 Find Cheap Flights from Washington 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 to Singapore departing on 3/22. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$624
Overall average: $766
Singapore Airlines
Fri 3/20Tue 4/7
SEA - SIN • Non-stop
Cheapest one-way
$265
Typical prices: $374-$582
Singapore Airlines
Sun 3/22
SEA - SIN • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Washington to Singapore

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington to Singapore

Fri, Mar 20 - Tue, Apr 7
Singapore Airlines Logo
9:45 am - 5:45 pm
SEA
-
SIN
17h 00mnonstop
Singapore Airlines Logo
9:00 am - 8:45 am
SIN
-
SEA
14h 45mnonstop
$624Singapore Airlines
Fri, Feb 20 - Fri, Mar 6
Singapore Airlines Logo
8:45 am - 5:45 pm
SEA
-
SIN
17h 00mnonstop
Singapore Airlines Logo
9:00 am - 7:10 am
SIN
-
SEA
14h 10mnonstop
$637Singapore Airlines
Sun, Mar 1 - Wed, May 13
Philippine Airlines Logo
9:30 pm - 9:35 am
SEA
-
SIN
20h 05m1 stop
Philippine Airlines Logo
8:00 pm - 8:05 pm
SIN
-
SEA
39h 05m1 stop
$650Philippine Airlines
Sun, May 3 - Mon, May 11
Philippine Airlines Logo
11:10 pm - 11:35 pm
SEA
-
SIN
33h 25m1 stop
Philippine Airlines Logo
8:00 pm - 8:05 pm
SIN
-
SEA
39h 05m1 stop
$652Philippine Airlines
Tue, Mar 31 - Wed, Jun 17
Asiana Airlines Logo
12:10 am - 9:30 pm
SEA
-
SIN
30h 20m1 stop
Asiana Airlines Logo
10:50 pm - 2:55 pm
SIN
-
SEA
31h 05m1 stop
$655Asiana Airlines
Sun, May 3 - Tue, May 12
Philippine Airlines Logo
11:10 pm - 11:35 pm
SEA
-
SIN
33h 25m1 stop
Philippine Airlines Logo
2:30 pm - 8:05 pm
SIN
-
SEA
20h 35m1 stop
$656Philippine Airlines
Mon, Apr 13 - Wed, Apr 22
Asiana Airlines Logo
12:10 am - 9:30 pm
SEA
-
SIN
30h 20m1 stop
Asiana Airlines Logo
10:50 pm - 2:55 pm
SIN
-
SEA
31h 05m1 stop
$661Asiana Airlines
Mon, Apr 6 - Mon, Apr 20
Air Canada Logo
7:05 pm - 11:15 am
PDX
-
SIN
25h 10m2 stops
Air Canada Logo
10:50 pm - 2:40 pm
SIN
-
PDX
30h 50m2 stops
$777Air Canada
Thu, Apr 23 - Sat, May 2
Air Canada Logo
7:05 pm - 5:15 am
PDX
-
SIN
19h 10m1 stop
Air Canada Logo
7:00 am - 2:45 pm
SIN
-
PDX
22h 45m1 stop
$789Air Canada
Sat, Feb 14 - Fri, Feb 20
Korean Air Logo
7:27 am - 12:10 am
GEG
-
SIN
24h 43m2 stops
Korean Air Logo
1:35 am - 12:35 pm
SIN
-
GEG
27h 00m2 stops
$1,144Korean Air
Useful Info

Good to know

Low seasonAugust
Cheapest flight$265
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 49% 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 to Singapore from Washington 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 to Singapore with an airline and back to Washington 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 to Singapore from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Singapore

Information on the airport you'll fly into in Singapore

Singapore (SIN)