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Cheap flights from Washington to Singapore from $330

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
9:40 am - 5:45 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
17h 05mnonstop
Singapore Airlines Logo
9:00 am - 8:45 amSIN  Singapore Changi-SEA Seattle/Tacoma Intl
14h 45mnonstop
$786Singapore Airlines
Sat, Mar 20 - Sun, Mar 28
Singapore Airlines Logo
10:15 am - 5:35 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
16h 20mnonstop
Singapore Airlines Logo
9:00 am - 8:45 amSIN  Singapore Changi-SEA Seattle/Tacoma Intl
14h 45mnonstop
$793Singapore Airlines
Tue, Apr 20 - Tue, Apr 27
Multiple Airlines Logo
9:40 am - 5:45 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
17h 05mnonstop
Multiple Airlines Logo
12:15 pm - 9:05 amSIN  Singapore Changi-SEA Seattle/Tacoma Intl
35h 50m2 stops Haikou Meilan Intl Chongqing Jiangbei Intl
$793Multiple Airlines
Wed, Mar 17 - Wed, Mar 24
United Airlines Logo
3:40 pm - 6:55 amSEA  Seattle/Tacoma Intl-SIN Singapore Changi
23h 15m1 stop Tokyo Haneda
United Airlines Logo
10:10 am - 6:28 pmSIN  Singapore Changi-SEA Seattle/Tacoma Intl
24h 18m1 stop San Francisco
$796United Airlines
Mon, Nov 30 - Fri, Dec 4
United Airlines Logo
6:57 am - 6:35 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
20h 38m1 stop San Francisco
United Airlines Logo
11:05 am - 2:25 pmSIN  Singapore Changi-SEA Seattle/Tacoma Intl
18h 20m1 stop Tokyo Haneda
$798United Airlines
Tue, Apr 6 - Thu, Apr 29
ANA Logo
4:30 pm - 5:15 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
33h 45m1 stop Tokyo Haneda
ANA Logo
10:00 pm - 2:25 pmSIN  Singapore Changi-SEA Seattle/Tacoma Intl
31h 25m1 stop Tokyo Haneda
$807ANA
Sun, Mar 28 - Sun, Apr 4
ANA Logo
3:45 pm - 11:40 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
39h 55m1 stop Tokyo Haneda
ANA Logo
10:20 pm - 1:20 pmSIN  Singapore Changi-SEA Seattle/Tacoma Intl
31h 00m1 stop Tokyo Haneda
$818ANA
Sat, Jan 9 - Sun, Jan 31
Korean Air Logo
4:15 pm - 8:25 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
37h 10m2 stops Las Vegas Harry Reid Intl Incheon Intl
Korean Air Logo
10:00 pm - 10:40 amSIN  Singapore Changi-SEA Seattle/Tacoma Intl
27h 40m1 stop Incheon Intl
$821Korean Air
Sat, Mar 20 - Mon, Mar 29
Multiple Airlines Logo
8:40 am - 5:45 pmSEA  Seattle/Tacoma Intl-SIN Singapore Changi
17h 05mnonstop
Multiple Airlines Logo
4:15 pm - 8:05 amSIN  Singapore Changi-SEA Seattle/Tacoma Intl
31h 50m2 stops Haikou Meilan Intl Chongqing Jiangbei Intl
$821Multiple Airlines
Tue, Jan 12 - Wed, Jan 20
Korean Air Logo
11:00 am - 12:15 amSEA  Seattle/Tacoma Intl-SIN Singapore Changi
21h 15m1 stop Incheon Intl
Korean Air Logo
10:30 pm - 10:05 amSIN  Singapore Changi-SEA Seattle/Tacoma Intl
26h 35m1 stop Incheon Intl
$827Korean Air
Mon, Mar 1 - Sun, Mar 14

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United Airlines flights from State of Washington to Singapore

Our best United Airlines deals on State of Washington to Singapore flight tickets
United Airlines
Nov 15
SEA3:40 pmSeattle/Tacoma Intl
23h 15m
1 stop
SIN6:55 amSingapore Changi
Nov 18
SIN10:10 amSingapore Changi
20h 29m
1 stop
SEA2:39 pmSeattle/Tacoma Intl
$796
United Airlines
Nov 15
SEA6:00 amSeattle/Tacoma Intl
32h 55m
2 stops
SIN6:55 amSingapore Changi
Nov 18
SIN10:10 amSingapore Changi
24h 59m
2 stops
SEA7:09 pmSeattle/Tacoma Intl
$805
United Airlines
Jan 17
SEA6:15 amSeattle/Tacoma Intl
32h 40m
2 stops
SIN6:55 amSingapore Changi
Feb 6
SIN10:20 pmSingapore Changi
27h 18m
1 stop
SEA9:38 amSeattle/Tacoma Intl
$809

ANA flights from State of Washington to Singapore

Our best ANA deals on State of Washington to Singapore flight tickets
ANA
Nov 10
SEA7:00 amSeattle/Tacoma Intl
25h 45m
2 stops
SIN12:45 amSingapore Changi
Nov 17
SIN10:45 amSingapore Changi
18h 35m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$786
ANA
Jan 9
SEA3:45 pmSeattle/Tacoma Intl
39h 55m
1 stop
SIN11:40 pmSingapore Changi
Jan 31
SIN10:20 pmSingapore Changi
31h 00m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$818
ANA
Jan 17
SEA7:00 amSeattle/Tacoma Intl
24h 40m
2 stops
SIN11:40 pmSingapore Changi
Feb 28
SIN6:35 amSingapore Changi
22h 45m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$849

momondo Fare Finder

 
Use the filters below to find and compare flights from Washington to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 3/20

9:40 am-5:45 pm

Nonstop17h 05m

Singapore Changi

Sun 3/28

9:00 am-8:45 am

Nonstop14h 45m

$786
Quickest round-trip

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Tue 4/20

10:15 am-5:35 pm

Nonstop16h 20m

Singapore Changi

Tue 4/27

9:00 am-8:45 am

Nonstop14h 45m

$793

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Wed 3/17

9:40 am-5:45 pm

Nonstop17h 05m

Singapore Changi

Wed 3/24

12:15 pm-9:05 am

2 stops35h 50m

$793

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Mon 11/30

3:40 pm-6:55 am

1 stop23h 15m

Singapore Changi

Fri 12/4

10:10 am-6:28 pm

1 stop24h 18m

$796

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Tue 4/6

6:57 am-6:35 pm

1 stop20h 38m

Singapore Changi

Thu 4/29

11:05 am-2:25 pm

1 stop18h 20m

$798

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sun 3/28

4:30 pm-5:15 pm

1 stop33h 45m

Singapore Changi

Sun 4/4

10:00 pm-2:25 pm

1 stop31h 25m

$807

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 1/9

3:45 pm-11:40 pm

1 stop39h 55m

Singapore Changi

Sun 1/31

10:20 pm-1:20 pm

1 stop31h 00m

$818

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 3/20

4:15 pm-8:25 pm

2 stops37h 10m

Singapore Changi

Mon 3/29

10:00 pm-10:40 am

1 stop27h 40m

$821

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Tue 1/12

8:40 am-5:45 pm

Nonstop17h 05m

Singapore Changi

Wed 1/20

4:15 pm-8:05 am

2 stops31h 50m

$821

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Mon 3/1

11:00 am-12:15 am

1 stop21h 15m

Singapore Changi

Sun 3/14

10:30 pm-10:05 am

1 stop26h 35m

$827

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Singapore from

How to get the cheapest flight ticket from State of Washington to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Singapore?

The month of November is, on average, the cheapest month to fly to Singapore from State of Washington, with most prices found around $709. If you aren’t able to travel to Singapore during the month of November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $736.

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from State of Washington to Singapore is on a Tuesday when prices can be found for as low as $948. The most expensive day to fly to Singapore is Monday, with ticket prices averaging around $1,247.

What is the cheapest Washington to Singapore Changi flight route?

Fly from Seattle/Tacoma Intl to Singapore Changi for the best Washington - Singapore Changi flight prices

How far in advance should I book a flight from Washington to Singapore?

You are more likely to see cheaper flights to Singapore from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $907 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from State of Washington for as low as $705 on momondo.

What cabin class options are available on State of Washington to Singapore flights?

There are 3 cabin classes available to choose from on State of Washington to Singapore flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Singapore flights?

No. A direct flight is the cheapest option for a flight between State of Washington to Singapore.

Cheap State of Washington to Singapore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Singapore

Best Price Found

$330

Fastest flight time

16h 20m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Singapore

1 airport
The best one-way flight to Singapore from State of Washington in the past 72 hours is $330. The best round-trip flight deal from State of Washington to Singapore found on momondo in the last 72 hours is $786.
The fastest flight from State of Washington to Singapore takes 16h 20m
Direct flights go from State of Washington to Singapore on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Singapore Airlines.
There is 1 airport in Singapore. From State of Washington there are direct flights to Singapore Changi (SIN).
Search flight deals

Frequently asked questions about flying from Washington to Singapore

  • When did momondo last update prices for flights from Washington to Singapore Changi Airport?

    Prices for flights from Washington to Singapore Changi Airport are updated daily.

  • How many operators does momondo search for flights from Washington to Singapore Changi Airport?

  • How old do you have to be to fly from Washington to Singapore Changi Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Singapore Changi Airport.

  • What documentation or ID do you need to fly to Singapore Changi Airport?

    The required travel and health documents for your Singapore Changi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore Changi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from State of Washington to Singapore?

Best airlines flying from State of Washington to Singapore

Compare and see reviews for airlines that fly from State of Washington to Singapore with momondo
Airline
Rating
Free Cancellation
Price
Philippine AirlinesPriceFrom $348Free CancellationRating
7.3
1,040 reviews
Search Philippine Airlines flights
DeltaPriceFrom $498Free CancellationRating
7.8
8,698 reviews
Search Delta flights
Singapore AirlinesPriceFrom $506Free CancellationRating
8.2
1,632 reviews
Search Singapore Airlines flights
Air CanadaPriceFrom $534Free CancellationRating
7.1
11,875 reviews
Search Air Canada flights
Asiana AirlinesPriceFrom $610Free CancellationRating
8.1
570 reviews
Search Asiana Airlines flights
United AirlinesPriceFrom $621Free CancellationRating
7.3
10,469 reviews
Search United Airlines flights
Korean AirPriceFrom $624Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights
ANAPriceFrom $750Free CancellationRating
8.3
1,341 reviews
Search ANA flights
Cathay PacificPriceFrom $774Free CancellationRating
7.6
1,539 reviews
Search Cathay Pacific flights
Japan AirlinesPriceFrom $794Free CancellationRating
8.3
1,969 reviews
Search Japan Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Singapore?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Singapore. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington to Singapore with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Singapore from Washington with this policy.

How can momondo help me find flights from Washington to Singapore?

Once you have performed a search for Washington to Singapore flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington to Singapore right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington to Singapore now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Singapore and let you know when they change.

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