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Cheap flights from Singapore to Seattle from $417

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Singapore to Seattle departing on 3/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
12:45 pm - 10:05 am
SIN
-
SEA
36h 20m
1 stop
Cathay Pacific Logo
11:45 am - 5:30 am
SEA
-
SIN
26h 45m
1 stop
$753Cathay Pacific
Mon, Mar 30 - Thu, Apr 16
Cathay Pacific Logo
1:25 pm - 10:05 am
SIN
-
SEA
35h 40m
1 stop
Cathay Pacific Logo
11:45 am - 3:05 pm
SEA
-
SIN
36h 20m
1 stop
$754Cathay Pacific
Mon, Mar 30 - Thu, Apr 16
China Airlines Logo
2:25 pm - 7:10 pm
SIN
-
SEA
19h 45m
1 stop
China Airlines Logo
1:10 am - 1:05 pm
SEA
-
SIN
20h 55m
1 stop
$763China Airlines
Thu, Mar 12 - Mon, Mar 16
Cathay Pacific Logo
1:25 pm - 10:05 am
SIN
-
SEA
35h 40m
1 stop
Cathay Pacific Logo
11:45 am - 5:30 am
SEA
-
SIN
26h 45m
1 stop
$765Cathay Pacific
Mon, Apr 13 - Tue, Apr 28
Multiple Airlines Logo
1:45 pm - 7:15 pm
SIN
-
SEA
20h 30m
1 stop
Multiple Airlines Logo
10:15 am - 5:35 pm
SEA
-
SIN
16h 20mnonstop
$768Multiple Airlines
Sun, May 17 - Sat, May 30
Singapore Airlines Logo
9:00 am - 8:45 am
SIN
-
SEA
14h 45mnonstop
Singapore Airlines Logo
10:15 am - 5:35 pm
SEA
-
SIN
16h 20mnonstop
$773Singapore Airlines
Sun, May 17 - Sat, May 30
Singapore Airlines Logo
9:00 am - 8:45 am
SIN
-
SEA
14h 45mnonstop
Singapore Airlines Logo
10:15 am - 5:35 pm
SEA
-
SIN
16h 20mnonstop
$783Singapore Airlines
Fri, Jun 19 - Sun, Jul 5
United Airlines Logo
8:45 am - 11:21 pm
SIN
-
SEA
29h 36m
1 stop
United Airlines Logo
3:31 pm - 6:35 pm
SEA
-
SIN
36h 04m
1 stop
$788United Airlines
Fri, Jun 19 - Sat, Jul 11
Cathay Pacific Logo
8:05 pm - 10:05 am
SIN
-
SEA
29h 00m
1 stop
Cathay Pacific Logo
11:45 am - 5:30 am
SEA
-
SIN
26h 45m
1 stop
$792Cathay Pacific
Mon, Apr 13 - Thu, May 14
China Airlines Logo
2:00 am - 7:10 pm
SIN
-
SEA
32h 10m
1 stop
China Airlines Logo
1:15 am - 12:35 pm
SEA
-
SIN
20h 20m
1 stop
$793China Airlines
Sun, Mar 22 - Sun, Mar 29

Cathay Pacific flights from Singapore to Seattle

Our best Cathay Pacific deals on Singapore to Seattle flight tickets
Cathay Pacific
Mar 30
SIN12:45 pmSingapore Changi
36h 20m
1 stop
SEA10:05 amSeattle/Tacoma Intl
Apr 16
SEA11:45 amSeattle/Tacoma Intl
26h 45m
1 stop
SIN5:30 amSingapore Changi
$753
Cathay Pacific
Mar 30
SIN1:25 pmSingapore Changi
35h 40m
1 stop
SEA10:05 amSeattle/Tacoma Intl
Apr 16
SEA11:45 amSeattle/Tacoma Intl
36h 20m
1 stop
SIN3:05 pmSingapore Changi
$754
Cathay Pacific
Apr 13
SIN1:25 pmSingapore Changi
35h 40m
1 stop
SEA10:05 amSeattle/Tacoma Intl
Apr 28
SEA11:45 amSeattle/Tacoma Intl
26h 45m
1 stop
SIN5:30 amSingapore Changi
$765

United Airlines flights from Singapore to Seattle

Our best United Airlines deals on Singapore to Seattle flight tickets
United Airlines
Jun 19
SIN8:45 amSingapore Changi
29h 36m
1 stop
SEA11:21 pmSeattle/Tacoma Intl
Jul 11
SEA3:31 pmSeattle/Tacoma Intl
36h 04m
1 stop
SIN6:35 pmSingapore Changi
$788
United Airlines
Mar 24
SIN10:20 pmSingapore Changi
37h 38m
1 stop
SEA8:58 pmSeattle/Tacoma Intl
Mar 31
SEA7:37 pmSeattle/Tacoma Intl
31h 58m
1 stop
SIN6:35 pmSingapore Changi
$822
United Airlines
Mar 26
SIN10:20 pmSingapore Changi
28h 20m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 30
SEA7:12 amSeattle/Tacoma Intl
20h 23m
1 stop
SIN6:35 pmSingapore Changi
$823

momondo Fare Finder

 
Customize your flight search to find flights from Singapore to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 9, 2026.
Use the filters below to find and compare flights from Singapore to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 3/30

12:45 pm-10:05 am

1 stop36h 20m

Seattle/Tacoma Intl

Thu 4/16

11:45 am-5:30 am

1 stop26h 45m

$753

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 3/30

1:25 pm-10:05 am

1 stop35h 40m

Seattle/Tacoma Intl

Thu 4/16

11:45 am-3:05 pm

1 stop36h 20m

$754

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 3/12

2:25 pm-7:10 pm

1 stop19h 45m

Seattle/Tacoma Intl

Mon 3/16

1:10 am-1:05 pm

1 stop20h 55m

$763

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 4/13

1:25 pm-10:05 am

1 stop35h 40m

Seattle/Tacoma Intl

Tue 4/28

11:45 am-5:30 am

1 stop26h 45m

$765

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 5/17

1:45 pm-7:15 pm

1 stop20h 30m

Seattle/Tacoma Intl

Sat 5/30

10:15 am-5:35 pm

Nonstop16h 20m

$768

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 5/17

9:00 am-8:45 am

Nonstop14h 45m

Seattle/Tacoma Intl

Sat 5/30

10:15 am-5:35 pm

Nonstop16h 20m

$773

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 6/19

9:00 am-8:45 am

Nonstop14h 45m

Seattle/Tacoma Intl

Sun 7/5

10:15 am-5:35 pm

Nonstop16h 20m

$783

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 6/19

8:45 am-11:21 pm

1 stop29h 36m

Seattle/Tacoma Intl

Sat 7/11

3:31 pm-6:35 pm

1 stop36h 04m

$788

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 4/13

8:05 pm-10:05 am

1 stop29h 00m

Seattle/Tacoma Intl

Thu 5/14

11:45 am-5:30 am

1 stop26h 45m

$792

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 3/22

2:00 am-7:10 pm

1 stop32h 10m

Seattle/Tacoma Intl

Sun 3/29

1:15 am-12:35 pm

1 stop20h 20m

$793

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 Seattle from

How to get the cheapest flight ticket from Singapore to Seattle

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 typical price of a round-trip flight between Singapore and Seattle?

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Singapore to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $731. If you don’t want to visit Seattle in October, then you should wait until September to fly from Singapore, when ticket prices are also cheap, with an average price of $832.

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

On average, the least expensive day to fly to Seattle from Singapore is on a Friday. momondo users have found tickets for Friday departures for as low as $1,077. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Singapore because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,995.

What is the cheapest Singapore Changi to Seattle/Tacoma Intl flight route?

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

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $856 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Singapore for as low as $805 on momondo.

What cabin class options are available on Singapore Changi to Seattle/Tacoma Intl flights?

There are 3 cabin classes available to choose from on Singapore Changi to Seattle/Tacoma Intl 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 Singapore to Seattle flights?

No. A direct flight is the cheapest option for a flight between Singapore to Seattle.

How have Singapore to Seattle flight prices changed over time?

As of February 2026, prices for Singapore to Seattle flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Singapore to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Singapore to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Singapore to Seattle (SIN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Singapore to Seattle

Fastest flight time

14h 10m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in Seattle

1 airport
The fastest flight from Singapore to Seattle takes 14h 10m
Direct flights go from Singapore to Seattle on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Singapore Airlines.
There is 1 airport in Seattle. From Singapore there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • How far is Singapore Changi to Seattle/Tacoma Intl by plane?

    A flight from Singapore Changi to Seattle/Tacoma Intl will travel around 8059.6 mi. A reasonable flight in good conditions will take 14h 10m.

  • When did momondo last update prices for flights from Singapore Changi Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Singapore Changi Airport to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Singapore Changi Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Singapore Changi Airport to Seattle/Tacoma Intl 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 Singapore Changi Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Singapore to Seattle?

  • What is the most popular airline from Singapore to Seattle?

Best airlines flying from Singapore to Seattle

Compare and see reviews for airlines that fly from Singapore to Seattle with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $761Free CancellationRating
7.4
9,260 reviews
Search United Airlines flights
EVA AirPriceFrom $776Free CancellationRating
8.4
1,347 reviews
Search EVA Air flights
STARLUX AirlinesPriceFrom $785Free CancellationRating
8.9
271 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $910Free CancellationRating
8.2
1,452 reviews
Search Singapore Airlines flights

  • Singapore Airlines Flights From Singapore to Seattle

    Singapore Airlines operates around 5 flights from Singapore to Seattle every week. The average price of these flights found in the last 72 hours has been $1,176, but momondo users have found Singapore Airlines deals from Singapore to Seattle from as low as $910 round-trip. Singapore Airlines has been scored 8.2/10 in 1,452 reviews.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Redmond
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Kirkland
Westport
Centralia
Fife
Tumwater

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Singapore.

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

Yes. momondo allows you to filter the results for Singapore to Seattle flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Singapore to Seattle.

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

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

An easier way to manage your Seattle trip

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