How many flights depart from Singapore to State of Washington on average per week?

5 flights are operational weekly from Singapore to State of Washington as of May 2026. The most popular departure day for this route is Tue, with 20% of flights per week taking off on this day.

What is the cheapest airline that flies from Singapore Changi to Washington?

Cathay Pacific, Delta, and United Airlines are the most popular carriers operating from Singapore Changi to Washington

What airlines fly to State of Washington?

STARLUX Airlines, Singapore Airlines and EVA Air are the top three most popular airlines that fly to State of Washington from Singapore according to our data. STARLUX Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 3 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Singapore Changi Airport to Washington were last updated today.

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

As of May 2026, there are 3 operators available to choose from for flights from Singapore Changi Airport to Washington.

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

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 Singapore Changi Airport to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$486 Cheap Flights from Singapore to Washington in 2026

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Find the cheapest flights from Singapore to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 6:30 pm

SIN

SEA

26h 30m

1 stop

10:45 am - 5:15 am

SEA

SIN

27h 30m

1 stop

$762Air Canada

Tue, Jun 2 - Sun, Jun 7

6:15 am - 7:03 pm

SIN

SEA

27h 48m

2 stops

6:00 am - 12:45 am

SEA

SIN

27h 45m

2 stops

$774United Airlines

Tue, Jul 14 - Mon, Jul 20

10:00 pm - 1:37 pm

SIN

SEA

30h 37m

1 stop

1:00 pm - 7:15 pm

SEA

SIN

39h 15m

1 stop

$793Delta

Wed, Sep 9 - Wed, Sep 16

10:00 pm - 1:37 pm

SIN

SEA

30h 37m

1 stop

1:00 pm - 5:00 am

SEA

SIN

25h 00m

1 stop

$795Delta

Sun, Sep 6 - Sun, Sep 13

10:40 am - 9:00 am

SIN

SEA

38h 20m

1 stop

11:00 am - 8:25 pm

SEA

SIN

41h 25m

1 stop

$796Korean Air

Thu, Nov 12 - Mon, Nov 16

10:40 am - 9:00 am

SIN

SEA

38h 20m

1 stop

11:00 am - 8:25 pm

SEA

SIN

41h 25m

1 stop

$797Korean Air

Thu, Nov 12 - Mon, Nov 16

7:30 am - 10:40 am

SIN

SEA

18h 10m

1 stop

12:50 pm - 5:00 am

SEA

SIN

25h 10m

1 stop

$799Korean Air

Sat, Sep 12 - Sun, Sep 13

8:50 am - 6:05 pm

SIN

PDX

25h 15m

2 stops

3:15 pm - 11:15 am

PDX

SIN

28h 00m

2 stops

$986Multiple Airlines

Fri, Nov 13 - Sat, Nov 28

1:45 pm - 10:58 pm

SIN

PDX

24h 13m

2 stops

9:32 pm - 12:35 pm

PDX

SIN

24h 03m

2 stops

$1,023Multiple Airlines

Mon, Sep 7 - Mon, Sep 21

8:15 am - 10:59 pm

SIN

PDX

30h 44m

2 stops

6:00 am - 6:35 am

PDX

SIN

32h 35m

2 stops

$1,058American Airlines

Thu, Nov 12 - Fri, Nov 27

Delta flights from Singapore to State of Washington

Our best Delta deals on Singapore to State of Washington flight tickets

Delta

Sep 9

SIN10:00 pmSingapore Changi

30h 37m

1 stop

SEA1:37 pmSeattle/Tacoma Intl

Sep 16

SEA1:00 pmSeattle/Tacoma Intl

39h 15m

1 stop

SIN7:15 pmSingapore Changi

$793

Delta

Sep 6

SIN10:00 pmSingapore Changi

30h 37m

1 stop

SEA1:37 pmSeattle/Tacoma Intl

Sep 13

SEA1:00 pmSeattle/Tacoma Intl

25h 00m

1 stop

SIN5:00 amSingapore Changi

$795

Delta

Sep 9

SIN7:30 amSingapore Changi

21h 07m

1 stop

SEA1:37 pmSeattle/Tacoma Intl

Sep 16

SEA7:20 amSeattle/Tacoma Intl

30h 40m

2 stops

SIN5:00 amSingapore Changi

$902

Asiana Airlines flights from Singapore to State of Washington

Our best Asiana Airlines deals on Singapore to State of Washington flight tickets

Asiana Airlines

Sep 12

SIN10:50 pmSingapore Changi

31h 25m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

Sep 18

SEA12:10 amSeattle/Tacoma Intl

30h 20m

1 stop

SIN9:30 pmSingapore Changi

$898

Asiana Airlines

Sep 6

SIN10:50 pmSingapore Changi

31h 25m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

Sep 18

SEA12:10 amSeattle/Tacoma Intl

30h 20m

1 stop

SIN9:30 pmSingapore Changi

$904

Asiana Airlines

Aug 10

SIN10:50 pmSingapore Changi

31h 55m

1 stop

SEA3:45 pmSeattle/Tacoma Intl

Aug 17

SEA12:10 amSeattle/Tacoma Intl

30h 20m

1 stop

SIN9:30 pmSingapore Changi

$939

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 6/2

7:00 am-6:30 pm

1 stop26h 30m

Seattle/Tacoma Intl

Sun 6/7

10:45 am-5:15 am

1 stop27h 30m

$762

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 7/14

6:15 am-7:03 pm

2 stops27h 48m

Seattle/Tacoma Intl

Mon 7/20

6:00 am-12:45 am

2 stops27h 45m

$774

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 9/9

10:00 pm-1:37 pm

1 stop30h 37m

Seattle/Tacoma Intl

Wed 9/16

1:00 pm-7:15 pm

1 stop39h 15m

$793

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 9/6

10:00 pm-1:37 pm

1 stop30h 37m

Seattle/Tacoma Intl

Sun 9/13

1:00 pm-5:00 am

1 stop25h 00m

$795

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 11/12

10:40 am-9:00 am

1 stop38h 20m

Seattle/Tacoma Intl

Mon 11/16

11:00 am-8:25 pm

1 stop41h 25m

$796

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 11/12

10:40 am-9:00 am

1 stop38h 20m

Seattle/Tacoma Intl

Mon 11/16

11:00 am-8:25 pm

1 stop41h 25m

$797

Quickest round-trip

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 9/12

7:30 am-10:40 am

1 stop18h 10m

Seattle/Tacoma Intl

Sun 9/13

12:50 pm-5:00 am

1 stop25h 10m

$799

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Fri 11/13

8:50 am-6:05 pm

2 stops25h 15m

Portland

Sat 11/28

3:15 pm-11:15 am

2 stops28h 00m

$986

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Mon 9/7

1:45 pm-10:58 pm

2 stops24h 13m

Portland

Mon 9/21

9:32 pm-12:35 pm

2 stops24h 03m

$1,023

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Thu 11/12

8:15 am-10:59 pm

2 stops30h 44m

Portland

Fri 11/27

6:00 am-6:35 am

2 stops32h 35m

$1,058

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of February is, on average, the cheapest month to fly to State of Washington from Singapore, with most prices found around $418. If you aren’t able to travel to State of Washington during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $562.

What is the cheapest Singapore Changi to Washington flight route?

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

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

You are more likely to see cheaper flights to State of Washington from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $876 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Singapore for as low as $792 on momondo.

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

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

Cheap Singapore to State of Washington flight deals and tips

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

Fastest flight time	14h 45m
Direct flights	Mon, Wed, Fri, Sat and Sun
Airports in State of Washington	96 airports

The fastest flight from Singapore to State of Washington takes 14h 45m

Direct flights go from Singapore to State of Washington on Monday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

There are 96 airports in State of Washington. From Singapore there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Singapore to Washington

When did momondo last update prices for flights from Singapore Changi Airport to Washington?
Prices for flights from Singapore Changi Airport to Washington were last updated today.
How many operators does momondo search for flights from Singapore Changi Airport to Washington?
As of May 2026, there are 3 operators available to choose from for flights from Singapore Changi Airport to Washington.
How old do you have to be to fly from Singapore Changi Airport to Washington?
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 Singapore Changi Airport to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Singapore to State of Washington?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Singapore to State of Washington is Airbus A350-900 (85.71% of total bookings). The next most popular plane model is Boeing 787-9 Dreamliner (14.29%).

Best airlines flying from Singapore to State of Washington

Compare and see reviews for airlines that fly from Singapore to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
EVA Air	PriceFrom $776	Free Cancellation	Rating 8.5 1,449 reviews	Search EVA Air flights
Singapore Airlines	PriceFrom $778	Free Cancellation	Rating 8.2 1,517 reviews	Search Singapore Airlines flights
STARLUX Airlines	PriceFrom $785	Free Cancellation	Rating 8.9 314 reviews	Search STARLUX Airlines flights

Why use momondo?

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

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

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

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

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

Once all potential Singapore to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Singapore to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.