$365+ Cheap flights from Seattle (SEA) to Singapore
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
May 15 — May 221
Round-trip
1 adult, Economy
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Cheapest flights from Seattle to SingaporeExplore the most affordable flight options available from Seattle to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
Explore the most affordable flight options available from Seattle to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
This FlightHub deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Sun 10/259:00 am
SIN
- SEA
Nonstop14h 10m
Singapore Airlines
Deal found 4/10![Singapore Airlines logo]()
$669
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Fri 10/239:00 am
SIN
- SEA
Nonstop14h 45m
Singapore Airlines
Deal found 4/14![Singapore Airlines logo]()
$671
This oojo deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Fri 10/239:00 am
SIN
- SEA
Nonstop14h 45m
Singapore Airlines
Deal found 4/13![Singapore Airlines logo]()
$715
This oojo deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Fri 10/29:00 am
SIN
- SEA
Nonstop14h 45m
Singapore Airlines
Deal found 4/11![Singapore Airlines logo]()
$781
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Sat 9/199:00 am
SIN
- SEA
Nonstop14h 45m
Singapore Airlines
Deal found 4/14![Singapore Airlines logo]()
$785
This Justfly.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Sun 9/209:00 am
SIN
- SEA
Nonstop14h 45m
Singapore Airlines
Deal found 4/10![Singapore Airlines logo]()
$786
This oojo deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/298:45 am
SEA
- SIN
Nonstop17h 00m
Singapore Airlines
Tue 12/159:00 am
SIN
- SEA
Nonstop14h 10m
Singapore Airlines
Deal found 4/13![Singapore Airlines logo]()
$792
This oojo deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Tue 10/69:00 am
SIN
- SEA
Nonstop14h 45m
Singapore Airlines
Deal found 4/12![Singapore Airlines logo]()
$793
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Wed 8/269:15 am
SIN
- SEA
1 stop21h 56m
Singapore Airlines
Deal found 4/14![Singapore Airlines logo]()
$799
This Trip.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:20 pm
SEA
- SIN
1 stop24h 20m
Multiple Airlines
Fri 10/239:00 am
SIN
- SEA
Nonstop14h 45m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$811
This KAYAK deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:15 am
SEA
- SIN
Nonstop16h 20m
Multiple Airlines
Wed 8/269:15 am
SIN
- SEA
1 stop21h 56m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$816
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Sun 9/279:00 am
SIN
- SEA
Nonstop14h 45m
Singapore Airlines
Deal found 4/14![Singapore Airlines logo]()
$818
Best flights from Seattle to SingaporeDiscover carefully curated flight deals from Seattle to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
Discover carefully curated flight deals from Seattle to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
This Delta deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:00 pm
SEA
- SIN
1 stop25h 00m
Delta
Sat 5/91:25 am
SIN
- SEA
1 stop26h 46m
Delta
Deal found 4/10![Delta logo]()
$970
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:08 am
SEA
- SIN
1 stop20h 27m
United Airlines
Mon 5/119:00 am
SIN
- SEA
1 stop29h 29m
United Airlines
Deal found 4/13![United Airlines logo]()
$971
This Korean Air deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:50 pm
SEA
- SIN
1 stop25h 10m
Korean Air
Thu 5/77:30 am
SIN
- SEA
2 stops23h 31m
Korean Air
Deal found 4/13![Korean Air logo]()
$985
This United Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:30 pm
SEA
- SIN
2 stops22h 45m
United Airlines
Mon 9/148:45 am
SIN
- SEA
1 stop26h 58m
United Airlines
Deal found 4/9![United Airlines logo]()
$975
This Korean Air deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:20 am
SEA
- SIN
2 stops30h 40m
Korean Air
Wed 8/2610:00 pm
SIN
- SEA
2 stops32h 24m
Korean Air
Deal found 4/10![Korean Air logo]()
$990
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:30 pm
SEA
- SIN
1 stop23h 10m
United Airlines
Tue 10/611:05 am
SIN
- SEA
1 stop18h 20m
United Airlines
Deal found 4/12![United Airlines logo]()
$975
This United Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:08 am
SEA
- SIN
1 stop20h 27m
United Airlines
Wed 5/139:00 am
SIN
- SEA
2 stops27h 58m
United Airlines
Deal found 4/9![United Airlines logo]()
$975
This United Airlines deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 pm
SEA
- SIN
2 stops33h 35m
United Airlines
Wed 9/308:35 pm
SIN
- SEA
1 stop19h 32m
United Airlines
Deal found 4/11![United Airlines logo]()
$976
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:05 am
SEA
- SIN
2 stops28h 10m
United Airlines
Fri 9/258:45 am
SIN
- SEA
1 stop27h 05m
United Airlines
Deal found 4/13![United Airlines logo]()
$976
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:30 pm
SEA
- SIN
1 stop23h 10m
United Airlines
Fri 10/236:15 am
SIN
- SEA
2 stops32h 13m
United Airlines
Deal found 4/13![United Airlines logo]()
$988
Last-minute flights from Seattle to SingaporeDiscover last-minute flight deals from Seattle to Singapore. Data last updated April 15, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Singapore. Data last updated April 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:37 pm
SEA
- SIN
1 stop20h 08m
United Airlines
Tue 5/59:00 am
SIN
- SEA
1 stop24h 32m
United Airlines
Deal found 4/12![United Airlines logo]()
$971
This FlightHub deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:25 pm
SEA
- SIN
1 stop25h 55m
Qatar Airways
Sun 4/261:05 am
SIN
- SEA
1 stop28h 00m
Qatar Airways
Deal found 4/12![Qatar Airways logo]()
$959
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:00 pm
SEA
- SIN
1 stop25h 00m
Delta
Sun 5/1010:00 pm
SIN
- SEA
1 stop30h 11m
Delta
Deal found 4/13![Delta logo]()
$970
This oojo deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:55 am
SEA
- SIN
1 stop29h 35m
Asiana Airlines
Wed 5/1310:50 pm
SIN
- SEA
1 stop31h 05m
Asiana Airlines
Deal found 4/11![Asiana Airlines logo]()
$855
This Kiwi.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
SEA
- SIN
2 stops31h 00m
Korean Air
Wed 5/137:30 am
SIN
- SEA
1 stop18h 10m
Korean Air
Deal found 4/12![Korean Air logo]()
$974
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:25 pm
SEA
- SIN
1 stop34h 10m
United Airlines
Thu 5/79:00 am
SIN
- SEA
1 stop29h 29m
United Airlines
Deal found 4/13![United Airlines logo]()
$978
This IEagle deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:25 pm
SEA
- SIN
1 stop32h 50m
Qatar Airways
Sun 5/171:05 am
SIN
- SEA
1 stop28h 00m
Qatar Airways
Deal found 4/11![Qatar Airways logo]()
$953
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:08 am
SEA
- SIN
1 stop20h 27m
United Airlines
Mon 5/188:35 pm
SIN
- SEA
2 stops31h 41m
United Airlines
Deal found 4/12![United Airlines logo]()
$976
This Korean Air deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:20 pm
SEA
- SIN
2 stops35h 55m
Korean Air
Mon 5/181:25 am
SIN
- SEA
1 stop24h 15m
Korean Air
Deal found 4/12![Korean Air logo]()
$979
This CrystalTravel deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:25 pm
SEA
- SIN
1 stop25h 55m
Qatar Airways
Tue 5/191:05 am
SIN
- SEA
1 stop28h 00m
Qatar Airways
Deal found 4/13![Qatar Airways logo]()
$949
This Air Canada deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1910:45 am
SEA
- SIN
1 stop27h 30m
Air Canada
Tue 6/27:00 am
SIN
- SEA
1 stop26h 33m
Air Canada
Deal found 4/14![Air Canada logo]()
$955
One-way flights from Seattle to SingaporeSearch for one-way flight options from Seattle to Singapore. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
Search for one-way flight options from Seattle to Singapore. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
This oojo deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:15 am
SEA
- SIN
Nonstop16h 20m
Singapore Airlines
Deal found 4/10![Singapore Airlines logo]()
$365
This oojo deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:45 am
SEA
- SIN
Nonstop16h 50m
Singapore Airlines
Deal found 4/10![Singapore Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:10 pm
SEA
- SIN
1 stop28h 45m
Philippine Airlines
Deal found 4/9![Philippine Airlines logo]()
$403
This Jettzy deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:45 am
SEA
- SIN
Nonstop16h 50m
Singapore Airlines
Deal found 4/13![Singapore Airlines logo]()
$405
This CrystalTravel deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:55 am
SEA
- SIN
1 stop29h 35m
Asiana Airlines
Deal found 4/9![Asiana Airlines logo]()
$412
This Trip.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:10 pm
SEA
- SIN
1 stop23h 05m
Philippine Airlines
Deal found 4/10![Philippine Airlines logo]()
$413
This CrystalTravel deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:55 am
SEA
- SIN
1 stop29h 35m
Asiana Airlines
Deal found 4/14![Asiana Airlines logo]()
$414
This SmartFares deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:55 am
SEA
- SIN
1 stop29h 35m
Asiana Airlines
Deal found 4/11![Asiana Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:55 am
SEA
- SIN
1 stop29h 35m
Asiana Airlines
Deal found 4/9![Asiana Airlines logo]()
$424
This FlightHub deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:55 am
SEA
- SIN
1 stop29h 35m
Asiana Airlines
Deal found 4/12![Asiana Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:55 am
SEA
- SIN
1 stop29h 35m
Asiana Airlines
Deal found 4/11![Asiana Airlines logo]()
$426
Find flight deals from Seattle to Singapore
Keep the following information in mind while searching for Seattle to Singapore flight deals. Data was last updated April 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $669 (FlightHub) |
One-way from | $365 (oojo) |
Popular in | December |
Cheapest in | September |
Average price | $845 |
Good round-trip deal | $791 or less |
Good one-way deal | $316 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Singapore 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, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2026.
Use the filters below to find and compare flights from Seattle to Singapore that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Sun 4/26
1:00 pm-5:00 am
1 stop25h 00m
Singapore Changi
Sat 5/9
1:25 am-1:11 pm
1 stop26h 46m
$970
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Fri 5/1
7:08 am-6:35 pm
1 stop20h 27m
Singapore Changi
Mon 5/11
9:00 am-11:29 pm
1 stop29h 29m
$971
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Thu 9/10
4:30 pm-6:15 am
2 stops22h 45m
Singapore Changi
Mon 9/14
8:45 am-8:43 pm
1 stop26h 58m
$975
Quickest round-trip
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Sat 10/3
4:30 pm-6:40 am
1 stop23h 10m
Singapore Changi
Tue 10/6
11:05 am-2:25 pm
1 stop18h 20m
$975
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Fri 5/1
7:08 am-6:35 pm
1 stop20h 27m
Singapore Changi
Wed 5/13
9:00 am-9:58 pm
2 stops27h 58m
$975
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Wed 9/23
6:00 pm-6:35 pm
2 stops33h 35m
Singapore Changi
Wed 9/30
8:35 pm-1:07 am
1 stop19h 32m
$976
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Sun 9/6
11:05 am-6:15 am
2 stops28h 10m
Singapore Changi
Fri 9/25
8:45 am-8:50 pm
1 stop27h 05m
$976
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Thu 4/30
12:50 pm-5:00 am
1 stop25h 10m
Singapore Changi
Thu 5/7
7:30 am-4:01 pm
2 stops23h 31m
$985
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Sat 10/3
4:30 pm-6:40 am
1 stop23h 10m
Singapore Changi
Fri 10/23
6:15 am-11:28 pm
2 stops32h 13m
$988
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Thu 8/20
7:20 am-5:00 am
2 stops30h 40m
Singapore Changi
Wed 8/26
10:00 pm-3:24 pm
2 stops32h 24m
$990
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Seattle to Singapore
Have a flexible travel schedule? Discover the best time to fly to Singapore from Seattle with our price prediction graph.
SEA-SIN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Singapore
SEA-SG0
SEA-SIN
What is the cheapest month to book a flight from Seattle to Singapore?
Currently, September is the cheapest month in which you can book a flight from Seattle to Singapore (average of $495). Flying from Seattle to Singapore in December is currently the most expensive (average of $740). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to SG?
Find hourly flight availability from Seattle to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Singapore as you normally would.
How often are flights from Seattle to Singapore delayed?
About 26% of weekly flights between Seattle and Singapore have experienced delays in the past year, with the average delay time being 95 minutes.
What is the most punctual flight time for Seattle to Singapore flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Sunday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to Singapore flights?
Over the last year, Singapore Airlines have had the lowest number of delays on this route, with just 26% of flights being delayed.
Reviews of airlines servicing Singapore
Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated April 15, 2026.
Get a feel of what it's like to fly with Korean Air,Singapore Airlines, andAsiana Airlines from Seattle to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.4
Food
8.1
Comfort
8.3
Boarding
8.5
Crew
8.7
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Food
8.1
Comfort
8.3
Boarding
8.5
Crew
8.7
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Food
8.1
Comfort
8.3
Boarding
8.5
Crew
8.7
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Food
8.1
Comfort
8.3
Boarding
8.5
Crew
8.7
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Food
8.1
Comfort
8.3
Boarding
8.5
Crew
8.7
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Overall
8.4
Food
8.1
Comfort
8.3
Boarding
8.5
Crew
8.7
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentChris,Mar 2025
SEA - ICN
Related info for your journey
Find useful and relevant information for your journey from Seattle to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Singapore
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Singapore by cabin class
Find flights from Seattle to Singapore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Singapore flights
Browse other Seattle and Singapore flight options. Last updated on April 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Seattle to Singapore
Discover the top 10 airlines that operate flights from Seattle to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$508 | Average$785 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$648 | Average$682 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$661 | Average$788 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$671 | Average$889 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$710 | Average$840 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$736 | Average$986 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$750 | Average$889 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$754 | Average$1,089 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$774 | Average$933 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$792 | Average$896 | FlexibilityNo cancel fee | On-time79% |