SIN

$365 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 9/10. 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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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

Thu, Oct 8 - Thu, Oct 15
Singapore Airlines Logo
10:15 am - 5:35 pm
SEA
-
SIN
16h 20mnonstop
Singapore Airlines Logo
9:00 am - 8:45 am
SIN
-
SEA
14h 45mnonstop
$669Singapore Airlines
Tue, Oct 27 - Wed, Nov 11
Singapore Airlines Logo
9:45 am - 5:45 pm
SEA
-
SIN
17h 00mnonstop
Singapore Airlines Logo
9:00 am - 7:10 am
SIN
-
SEA
14h 10mnonstop
$670Singapore Airlines
Tue, Sep 15 - Tue, Sep 29
Singapore Airlines Logo
10:15 am - 5:35 pm
SEA
-
SIN
16h 20mnonstop
Singapore Airlines Logo
9:00 am - 8:45 am
SIN
-
SEA
14h 45mnonstop
$717Singapore Airlines
Mon, Nov 2 - Tue, Feb 2
Asiana Airlines Logo
12:10 am - 9:55 pm
SEA
-
SIN
29h 45m
1 stop
Asiana Airlines Logo
11:10 pm - 1:55 pm
SIN
-
SEA
30h 45m
1 stop
$778Asiana Airlines
Sun, Sep 13 - Mon, Sep 21
Asiana Airlines Logo
12:10 am - 9:30 pm
SEA
-
SIN
30h 20m
1 stop
Asiana Airlines Logo
10:50 pm - 3:15 pm
SIN
-
SEA
31h 25m
1 stop
$788Asiana Airlines
Mon, Aug 3 - Thu, Aug 20
United Airlines Logo
7:00 am - 6:35 pm
PDX
-
SIN
20h 35m
1 stop
United Airlines Logo
8:35 pm - 10:11 am
SIN
-
PDX
28h 36m
1 stop
$891United Airlines
Mon, Oct 26 - Thu, Oct 29
United Airlines Logo
7:07 pm - 8:15 pm
PDX
-
SIN
34h 08m
2 stops
United Airlines Logo
10:10 am - 11:07 pm
SIN
-
PDX
27h 57m
2 stops
$895United Airlines
Mon, Oct 26 - Wed, Oct 28
China Eastern Logo
6:30 am - 3:00 pm
GEG
-
SIN
41h 30m
2 stops
China Eastern Logo
12:25 am - 9:37 pm
SIN
-
GEG
36h 12m
2 stops
$1,061China Eastern
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
8:15 am - 12:20 am
GEG
-
SIN
25h 05m
2 stops
Multiple Airlines Logo
3:20 pm - 12:31 pm
SIN
-
GEG
36h 11m
2 stops
$1,152Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
4:21 pm - 7:10 pm
GEG
-
SIN
35h 49m
1 stop
Multiple Airlines Logo
3:20 pm - 11:59 pm
SIN
-
GEG
23h 39m
2 stops
$1,458Multiple Airlines
Useful Info

Good to know

Low seasonJuly
Cheapest flight$365
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly with an average 45% 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