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Cheap flights from Seattle to Singapore from $341

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Singapore departing on 8/15. 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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Find the cheapest flights from Seattle to Singapore

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Singapore.
5:40 am - 7:05 amSEA-SIN
34h 25m1 stop
9:10 am - 10:13 pmSIN-SEA
28h 03m1 stop
$699Air Canada
Find Deal
Tue, May 6 - Tue, May 13
1:45 pm - 7:05 amSEA-SIN
26h 20m1 stop
9:10 am - 10:13 pmSIN-SEA
28h 03m1 stop
$704Air Canada
Find Deal
Thu, May 8 - Thu, May 15
10:00 am - 7:05 amSEA-SIN
30h 05m1 stop
9:10 am - 6:33 pmSIN-SEA
24h 23m1 stop
$706Air Canada
Find Deal
Thu, May 1 - Thu, May 8
10:15 am - 5:35 pmSEA-SIN
16h 20mnonstop
9:00 am - 8:45 amSIN-SEA
14h 45mnonstop
$761Singapore Airlines
Find Deal
Sun, Sep 7 - Sun, Sep 21
10:15 am - 5:35 pmSEA-SIN
16h 20mnonstop
6:40 pm - 11:59 pmSIN-SEA
20h 19m1 stop
$867Singapore Airlines
Find Deal
Sun, Sep 7 - Sun, Sep 21
2:40 pm - 6:45 amSEA-SIN
25h 05m1 stop
9:00 am - 3:58 pmSIN-SEA
21h 58m1 stop
$889United Airlines
Find Deal
Wed, May 7 - Wed, May 14
12:40 pm - 6:45 amSEA-SIN
27h 05m2 stops
9:00 am - 9:02 pmSIN-SEA
27h 02m3 stops
$893United Airlines
Find Deal
Wed, May 7 - Wed, May 14
12:50 pm - 5:00 amSEA-SIN
25h 10m1 stop
7:30 am - 10:40 amSIN-SEA
18h 10m1 stop
$894Korean Air
Find Deal
Thu, Sep 4 - Fri, Sep 12
12:50 pm - 5:00 amSEA-SIN
25h 10m1 stop
1:10 am - 9:47 pmSIN-SEA
35h 37m2 stops
$916Korean Air
Find Deal
Mon, Apr 7 - Sun, Apr 13
12:40 pm - 5:00 amSEA-SIN
25h 20m1 stop
1:10 am - 1:35 pmSIN-SEA
27h 25m1 stop
$1,002Delta
Find Deal
Sun, Apr 13 - Thu, May 1

Air Canada flights from Seattle to Singapore

Our best Air Canada deals on Seattle to Singapore flight tickets
Air Canada
May 6
SEA5:40 amSeattle/Tacoma Intl
34h 25m
1 stop
SIN7:05 amSingapore Changi
May 13
SIN9:10 amSingapore Changi
28h 03m
1 stop
SEA10:13 pmSeattle/Tacoma Intl
Air Canada
May 8
SEA1:45 pmSeattle/Tacoma Intl
26h 20m
1 stop
SIN7:05 amSingapore Changi
May 15
SIN9:10 amSingapore Changi
28h 03m
1 stop
SEA10:13 pmSeattle/Tacoma Intl
Air Canada
May 1
SEA10:00 amSeattle/Tacoma Intl
30h 05m
1 stop
SIN7:05 amSingapore Changi
May 8
SIN9:10 amSingapore Changi
24h 23m
1 stop
SEA6:33 pmSeattle/Tacoma Intl

China Airlines flights from Seattle to Singapore

Our best China Airlines deals on Seattle to Singapore flight tickets
China Airlines
May 5
SEA1:10 amSeattle/Tacoma Intl
32h 25m
1 stop
SIN12:35 amSingapore Changi
May 13
SIN1:45 pmSingapore Changi
20h 45m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
China Airlines
May 5
SEA1:10 amSeattle/Tacoma Intl
32h 25m
1 stop
SIN12:35 amSingapore Changi
May 13
SIN1:45 pmSingapore Changi
20h 45m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
China Airlines
Jul 13
SEA1:40 amSeattle/Tacoma Intl
31h 55m
1 stop
SIN12:35 amSingapore Changi
Jul 21
SIN2:00 amSingapore Changi
32h 45m
1 stop
SEA7:45 pmSeattle/Tacoma Intl

See travel insights to Singapore from

How to get the cheapest flight ticket from Seattle 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 March is, on average, the cheapest month to fly to Singapore from Seattle, with most prices found around $857. If you aren’t able to travel to Singapore during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $872.

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

The cheapest day to depart from Seattle to Singapore is on a Tuesday when prices can be found for as low as $1,093. The most expensive day to fly to Singapore is Monday, with ticket prices averaging around $1,211.

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

At noon is the cheapest time of day to fly from Seattle to Singapore when you can find flight prices for as low as $1,089. Flying to Singapore at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,226 on average. Flights to Singapore from Seattle in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

You are more likely to see cheaper flights to Singapore from Seattle when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,083 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Seattle for as low as $856 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Singapore Changi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Singapore flight prices changed over time?

As of March 2025, prices for Seattle to Singapore flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Singapore

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

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

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

Best Price Found

$341

Fastest flight time

16h 20m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in Singapore

1 airport
The best one-way flight to Singapore from Seattle in the past 72 hours is $341. The best round-trip flight deal from Seattle to Singapore found on momondo in the last 72 hours is $699.
The fastest flight from Seattle to Singapore takes 16h 20m
Direct flights go from Seattle to Singapore on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Singapore Airlines.
There is 1 airport near Singapore: Singapore Changi (SIN)

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

    Singapore Changi is 8059.6 mi away from Seattle/Tacoma Intl. Typically, this will take 16h 20m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Singapore Changi Airport.

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

    The travel and health documents you'll need for your trip to Singapore Changi 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 Singapore Changi 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 Seattle to Singapore?

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


Best airlines flying from Seattle to Singapore

Compare and see reviews for airlines that fly from Seattle to Singapore with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $686Free CancellationRating
8.1
1,283 reviews
Search Singapore Airlines flights
Asiana AirlinesPriceFrom $689Free CancellationRating
8.2
442 reviews
Search Asiana Airlines flights
Philippine AirlinesPriceFrom $712Free CancellationRating
7.2
840 reviews
Search Philippine Airlines flights
United AirlinesPriceFrom $725Free CancellationRating
7.4
8,603 reviews
Search United Airlines flights
Korean AirPriceFrom $728Free CancellationRating
8.4
1,047 reviews
Search Korean Air flights
DeltaPriceFrom $750Free CancellationRating
8.0
7,888 reviews
Search Delta flights
Japan AirlinesPriceFrom $760Free CancellationRating
8.3
1,440 reviews
Search Japan Airlines flights
Air CanadaPriceFrom $791Free CancellationRating
7.0
8,937 reviews
Search Air Canada flights
China AirlinesPriceFrom $899Free CancellationRating
8.2
723 reviews
Search China Airlines flights
Alaska AirlinesPriceFrom $972Free CancellationRating
8.0
9,785 reviews
Search Alaska Airlines flights
  • Singapore Airlines Flights From Seattle to Singapore

    Across 4 Singapore Airlines flights from Seattle to Singapore this week, the average price was $1,135, with the best Singapore Airlines deals starting from $686 round-trip. 1,283 users have rated Singapore Airlines on momondo, with an average score of 8.1/10.


Why use momondo?

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

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

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

All flight searches from Seattle to Singapore on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Seattle to Singapore 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 Seattle to Singapore right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Singapore, momondo offers a useful price alert feature which will track prices for flights to Singapore from Seattle and alert you when they change.


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