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Cheap flights from Singapore to Seattle from $406

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 10/3. 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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Find the cheapest flights from Singapore to Seattle (SIN-SEA)

Cheap round-trip flights

Philippine Airlines Logo
12:20 am - 7:15 pmSIN-SEA
33h 55m1 stop
Philippine Airlines Logo
11:35 pm - 11:20 pmSEA-SIN
32h 45m1 stop
$626Philippine Airlines
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Tue, Oct 7 - Wed, Oct 15
Philippine Airlines Logo
8:00 pm - 7:15 pmSIN-SEA
38h 15m1 stop
Philippine Airlines Logo
11:35 pm - 11:40 pmSEA-SIN
33h 05m1 stop
$627Philippine Airlines
Find Deal
Tue, Oct 21 - Fri, Oct 24
Philippine Airlines Logo
8:00 pm - 7:15 pmSIN-SEA
38h 15m1 stop
Philippine Airlines Logo
11:35 pm - 11:40 pmSEA-SIN
33h 05m1 stop
$629Philippine Airlines
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Tue, Oct 21 - Fri, Oct 24
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
$704STARLUX Airlines
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Sat, Nov 1 - Fri, Nov 7
STARLUX Airlines Logo
2:00 pm - 4:10 pmSIN-SEA
17h 10m1 stop
STARLUX Airlines Logo
11:45 pm - 1:25 pmSEA-SIN
21h 40m1 stop
$718STARLUX Airlines
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Tue, Sep 30 - Thu, Feb 5
United Airlines Logo
8:45 am - 10:59 pmSIN-SEA
29h 14m1 stop
United Airlines Logo
5:35 pm - 6:25 pmSEA-SIN
33h 50m1 stop
$789United Airlines
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Thu, Sep 11 - Tue, Sep 23
United Airlines Logo
8:40 pm - 1:28 pmSIN-SEA
31h 48m1 stop
United Airlines Logo
8:47 am - 6:15 amSEA-SIN
30h 28m1 stop
$791United Airlines
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Tue, Sep 16 - Sat, Sep 27
EVA Air Logo
3:10 pm - 7:30 pmSIN-SEA
19h 20m1 stop
EVA Air Logo
12:10 am - 2:30 pmSEA-SIN
22h 20m1 stop
$822EVA Air
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Tue, Sep 30 - Wed, Feb 4
EVA Air Logo
3:10 pm - 6:50 pmSIN-SEA
18h 40m1 stop
EVA Air Logo
12:10 am - 2:30 pmSEA-SIN
22h 20m1 stop
$843EVA Air
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Fri, Sep 5 - Mon, Nov 24
Singapore Airlines Logo
9:00 am - 7:10 amSIN-SEA
14h 10mnonstop
Singapore Airlines Logo
8:45 am - 5:45 pmSEA-SIN
17h 00mnonstop
$882Singapore Airlines
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Fri, Nov 21 - Sun, Nov 30

United Airlines flights from Singapore to Seattle

Our best United Airlines deals on Singapore to Seattle flight tickets
United Airlines
Sep 11
SIN8:45 amSingapore Changi
29h 14m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Sep 23
SEA5:35 pmSeattle/Tacoma Intl
33h 50m
1 stop
SIN6:25 pmSingapore Changi
$789
Find similar
United Airlines
Sep 16
SIN8:40 pmSingapore Changi
31h 48m
1 stop
SEA1:28 pmSeattle/Tacoma Intl
Sep 27
SEA8:47 amSeattle/Tacoma Intl
30h 28m
1 stop
SIN6:15 amSingapore Changi
$791
Find similar
United Airlines
Oct 2
SIN8:40 pmSingapore Changi
19h 19m
1 stop
SEA12:59 amSeattle/Tacoma Intl
Oct 22
SEA11:10 amSeattle/Tacoma Intl
28h 05m
2 stops
SIN6:15 amSingapore Changi
$869
Find similar

EVA Air flights from Singapore to Seattle

Our best EVA Air deals on Singapore to Seattle flight tickets
EVA Air
Sep 30
SIN3:10 pmSingapore Changi
19h 20m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
Feb 4
SEA12:10 amSeattle/Tacoma Intl
22h 20m
1 stop
SIN2:30 pmSingapore Changi
$822
Find similar
EVA Air
Sep 5
SIN3:10 pmSingapore Changi
18h 40m
1 stop
SEA6:50 pmSeattle/Tacoma Intl
Nov 24
SEA12:10 amSeattle/Tacoma Intl
22h 20m
1 stop
SIN2:30 pmSingapore Changi
$843
Find similar
EVA Air
Sep 11
SIN1:10 pmSingapore Changi
20h 40m
1 stop
SEA6:50 pmSeattle/Tacoma Intl
Sep 22
SEA1:30 amSeattle/Tacoma Intl
21h 20m
1 stop
SIN1:50 pmSingapore Changi
$857
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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 August 26, 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

Tue 10/7

12:20 am-7:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Wed 10/15

11:35 pm-11:20 pm

1 stop32h 45m

$626

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 10/21

8:00 pm-7:15 pm

1 stop38h 15m

Seattle/Tacoma Intl

Fri 10/24

11:35 pm-11:40 pm

1 stop33h 05m

$627

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 10/21

8:00 pm-7:15 pm

1 stop38h 15m

Seattle/Tacoma Intl

Fri 10/24

11:35 pm-11:40 pm

1 stop33h 05m

$629

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 11/1

2:45 pm-4:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Fri 11/7

11:45 pm-1:25 pm

1 stop21h 40m

$704

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 9/30

2:00 pm-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Thu 2/5

11:45 pm-1:25 pm

1 stop21h 40m

$718

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 9/11

8:45 am-10:59 pm

1 stop29h 14m

Seattle/Tacoma Intl

Tue 9/23

5:35 pm-6:25 pm

1 stop33h 50m

$789

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 9/16

8:40 pm-1:28 pm

1 stop31h 48m

Seattle/Tacoma Intl

Sat 9/27

8:47 am-6:15 am

1 stop30h 28m

$791

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 9/30

3:10 pm-7:30 pm

1 stop19h 20m

Seattle/Tacoma Intl

Wed 2/4

12:10 am-2:30 pm

1 stop22h 20m

$822

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 9/5

3:10 pm-6:50 pm

1 stop18h 40m

Seattle/Tacoma Intl

Mon 11/24

12:10 am-2:30 pm

1 stop22h 20m

$843

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 11/21

9:00 am-7:10 am

Nonstop14h 10m

Seattle/Tacoma Intl

Sun 11/30

8:45 am-5:45 pm

Nonstop17h 00m

$882

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, 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 $918 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 2% 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 August 2025, prices for Singapore to Seattle flights are approximately 15% 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)
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 $762Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
Singapore AirlinesPriceFrom $763Free CancellationRating
8.1
1,352 reviews
Search Singapore Airlines flights
EVA AirPriceFrom $779Free CancellationRating
8.4
1,234 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 3 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 1,352 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
Olympia
Renton
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Cle Elum
Tukwila
Kirkland
Centralia
Lakewood
Shoreline
Fife
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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