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Cheap flights from Singapore to Seattle from $442

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 10/28. 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

Asiana Airlines Logo
11:10 pm - 2:55 pmSIN-SEA
30h 45m1 stop
Asiana Airlines Logo
12:10 am - 9:55 pmSEA-SIN
29h 45m1 stop
$594Asiana Airlines
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Wed, Oct 29 - Tue, Nov 4
Asiana Airlines Logo
11:10 pm - 2:55 pmSIN-SEA
30h 45m1 stop
Asiana Airlines Logo
12:10 am - 9:55 pmSEA-SIN
29h 45m1 stop
$599Asiana Airlines
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Wed, Oct 29 - Tue, Nov 4
Logo
11:55 pm - 2:55 pmSIN-SEA
30h 00m2 stops
Logo
12:10 am - 6:00 pmSEA-SIN
25h 50m2 stops
$666
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Wed, Oct 29 - Tue, Nov 4
Logo
11:55 pm - 2:55 pmSIN-SEA
30h 00m2 stops
Logo
12:10 am - 7:40 pmSEA-SIN
27h 30m2 stops
$668
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Wed, Oct 29 - Tue, Nov 4
China Airlines Logo
2:00 am - 7:20 pmSIN-SEA
32h 20m1 stop
China Airlines Logo
1:10 am - 1:05 pmSEA-SIN
20h 55m1 stop
$735China Airlines
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Wed, Oct 22 - Mon, Oct 27
United Airlines Logo
8:45 am - 6:45 pmSIN-SEA
25h 00m1 stop
United Airlines Logo
5:20 pm - 8:00 amSEA-SIN
22h 40m1 stop
$738United Airlines
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Fri, Oct 24 - Sun, Nov 9
China Airlines Logo
2:00 am - 6:10 pmSIN-SEA
32h 10m1 stop
China Airlines Logo
12:10 am - 1:05 pmSEA-SIN
20h 55m1 stop
$739China Airlines
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Fri, Nov 7 - Sun, Nov 9
STARLUX Airlines Logo
2:45 pm - 4:05 pmSIN-SEA
16h 20m1 stop
STARLUX Airlines Logo
11:45 pm - 1:25 pmSEA-SIN
21h 40m1 stop
$780STARLUX Airlines
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Tue, Oct 28 - Tue, Nov 4
United Airlines Logo
10:20 pm - 4:15 pmSIN-SEA
33h 55m1 stop
United Airlines Logo
7:28 pm - 8:00 amSEA-SIN
20h 32m1 stop
$785United Airlines
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Sat, Nov 8 - Sun, Nov 9
STARLUX Airlines Logo
2:45 pm - 3:05 pmSIN-SEA
16h 20m1 stop
STARLUX Airlines Logo
11:45 pm - 1:25 pmSEA-SIN
21h 40m1 stop
$808STARLUX Airlines
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Sat, Nov 15 - Thu, Dec 11

Asiana Airlines flights from Singapore to Seattle

Our best Asiana Airlines deals on Singapore to Seattle flight tickets
Asiana Airlines
Oct 29
SIN11:10 pmSingapore Changi
30h 45m
1 stop
SEA2:55 pmSeattle/Tacoma Intl
Nov 4
SEA12:10 amSeattle/Tacoma Intl
29h 45m
1 stop
SIN9:55 pmSingapore Changi
$594
Find similar
Asiana Airlines
Oct 29
SIN11:10 pmSingapore Changi
30h 45m
1 stop
SEA2:55 pmSeattle/Tacoma Intl
Nov 4
SEA12:10 amSeattle/Tacoma Intl
29h 45m
1 stop
SIN9:55 pmSingapore Changi
$599
Find similar
Asiana Airlines
Nov 5
SIN11:10 pmSingapore Changi
30h 45m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
Nov 11
SEA12:10 amSeattle/Tacoma Intl
29h 45m
1 stop
SIN9:55 pmSingapore Changi
$603
Find similar

China Airlines flights from Singapore to Seattle

Our best China Airlines deals on Singapore to Seattle flight tickets
China Airlines
Oct 22
SIN2:00 amSingapore Changi
32h 20m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
Oct 27
SEA1:10 amSeattle/Tacoma Intl
20h 55m
1 stop
SIN1:05 pmSingapore Changi
$735
Find similar
China Airlines
Nov 7
SIN2:00 amSingapore Changi
32h 10m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Nov 9
SEA12:10 amSeattle/Tacoma Intl
20h 55m
1 stop
SIN1:05 pmSingapore Changi
$739
Find similar
China Airlines
Nov 15
SIN2:00 amSingapore Changi
32h 10m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Dec 11
SEA12:10 amSeattle/Tacoma Intl
32h 30m
1 stop
SIN12:40 amSingapore Changi
$740
Find similar

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 September 15, 2025.
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

Wed 10/29

11:10 pm-2:55 pm

1 stop30h 45m

Seattle/Tacoma Intl

Tue 11/4

12:10 am-9:55 pm

1 stop29h 45m

$594

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10/29

11:10 pm-2:55 pm

1 stop30h 45m

Seattle/Tacoma Intl

Tue 11/4

12:10 am-9:55 pm

1 stop29h 45m

$599

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10/29

11:55 pm-2:55 pm

2 stops30h 00m

Seattle/Tacoma Intl

Tue 11/4

12:10 am-6:00 pm

2 stops25h 50m

$666

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10/29

11:55 pm-2:55 pm

2 stops30h 00m

Seattle/Tacoma Intl

Tue 11/4

12:10 am-7:40 pm

2 stops27h 30m

$668

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10/22

2:00 am-7:20 pm

1 stop32h 20m

Seattle/Tacoma Intl

Mon 10/27

1:10 am-1:05 pm

1 stop20h 55m

$735

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 10/24

8:45 am-6:45 pm

1 stop25h 00m

Seattle/Tacoma Intl

Sun 11/9

5:20 pm-8:00 am

1 stop22h 40m

$738

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 11/7

2:00 am-6:10 pm

1 stop32h 10m

Seattle/Tacoma Intl

Sun 11/9

12:10 am-1:05 pm

1 stop20h 55m

$739

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 10/28

2:45 pm-4:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Tue 11/4

11:45 pm-1:25 pm

1 stop21h 40m

$780

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 11/8

10:20 pm-4:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Sun 11/9

7:28 pm-8:00 am

1 stop20h 32m

$785

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 11/15

2:45 pm-3:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Thu 12/11

11:45 pm-1:25 pm

1 stop21h 40m

$808

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 cheapest month to fly to Seattle?

In general, February 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 $855. If you don’t want to visit Seattle in February, then you should wait until September to fly from Singapore, when ticket prices are also cheap, with an average price of $873.

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 Monday. momondo users have found tickets for Monday departures for as low as $1,040. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday 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 $1,655.

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

Flying to Seattle from Singapore at noon is the least expensive time of day to depart. momondo users have found prices as low as $847 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $1,299. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $908 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 $819 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?

You could potentially save up to 13% on your flight if you consider stops on a Singapore to Seattle flight.

How have Singapore to Seattle flight prices changed over time?

As of September 2025, prices for Singapore to Seattle flights are approximately 28% 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 near Seattle: Seattle/Tacoma Intl (SEA)
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  • 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
8,929 reviews
Search United Airlines flights
Singapore AirlinesPriceFrom $763Free CancellationRating
8.1
1,365 reviews
Search Singapore Airlines flights
EVA AirPriceFrom $779Free CancellationRating
8.4
1,236 reviews
Search EVA Air flights
STARLUX AirlinesPriceFrom $785Free CancellationRating
8.9
211 reviews
Search STARLUX 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 $1,299, but momondo users have found Singapore Airlines deals from Singapore to Seattle from as low as $763 round-trip. Singapore Airlines has been scored 8.1/10 in 1,365 reviews.

Traveling to a place near Seattle?

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

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.

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