$299+ Cheap flights from Seattle (SEA) to Singapore (SIN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Singapore with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Singapore Changi are usually found in November or May, booked 63 days in advance, depart on a Tuesday or Sunday and return on a Monday
Cheap flight deals from Seattle to Singapore
Cheapest
Best
Last-minute
One-way
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 September 5, 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 September 5, 2026.
This Air Canada deal was found by Cheapflights users on 9/2. 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.
Wed 11/1810:10 am -
1 stop28h 50m
Fri 11/278:40 am -
1 stop16h 52m
Deal found 9/2![Air Canada logo]()
$730
This Kissandfly.com deal was found by Cheapflights users on 9/4. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:40 am -
Nonstop17h 05m
Sun 11/88:55 am -
Nonstop14h 10m
Deal found 9/4![Singapore Airlines logo]()
$732
This Kissandfly.com deal was found by Cheapflights users on 9/1. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:15 am -
Nonstop16h 20m
Fri 10/308:55 am -
Nonstop14h 10m
Deal found 9/1![Singapore Airlines logo]()
$733
This FlightHub deal was found by Cheapflights users on 9/4. 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 10/293:15 pm -
1 stop24h 45m
Sun 11/88:40 am -
1 stop29h 17m
Deal found 9/4![Air Canada logo]()
$740
This Air Canada deal was found by Cheapflights users on 9/2. 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 11/103:15 pm -
1 stop23h 45m
Tue 12/18:40 am -
1 stop21h 57m
Deal found 9/2![Air Canada logo]()
$748
This oojo deal was found by Cheapflights users on 9/2. 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 11/38:40 am -
Nonstop17h 05m
Wed 12/28:55 am -
Nonstop14h 10m
Deal found 9/2![Singapore Airlines logo]()
$755
This oojo deal was found by Cheapflights users on 9/2. 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 10/1510:15 am -
Nonstop16h 20m
Thu 10/298:55 am -
Nonstop14h 10m
Deal found 9/2![Singapore Airlines logo]()
$757
This FlightHub deal was found by Cheapflights users on 9/2. 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.
Tue 9/155:50 am -
1 stop32h 25m
Tue 10/137:00 am -
1 stop30h 47m
Deal found 9/2![Air Canada logo]()
$758
This Expedia deal was found by Cheapflights users on 8/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:15 pm -
2 stops25h 00m
Thu 10/298:40 am -
1 stop20h 57m
Deal found 8/31![Air Canada logo]()
$764
This Jettzy deal was found by Cheapflights users on 8/31. 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 10/1610:15 am -
Nonstop16h 20m
Fri 10/239:00 am -
Nonstop14h 45m
Deal found 8/31![Singapore Airlines logo]()
$765
This Air Canada deal was found by Cheapflights users on 9/2. 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.
Fri 11/610:10 am -
1 stop28h 50m
Fri 11/138:40 am -
1 stop25h 42m
Deal found 9/2![Air Canada logo]()
$767
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 September 5, 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 September 5, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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.
Thu 11/512:30 pm -
1 stop39h 55m
Wed 11/1110:30 pm -
1 stop29h 21m
Deal found 9/3![Delta logo]()
$822
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Mon 10/1912:16 pm -
2 stops26h 59m
Thu 10/2910:10 am -
2 stops24h 27m
Deal found 8/31![United Airlines logo]()
$826
This Korean Air deal was found by Cheapflights users on 9/3. 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.
Wed 10/712:50 pm -
1 stop20h 05m
Tue 10/1310:00 pm -
1 stop27h 40m
Deal found 9/3![Korean Air logo]()
$943
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/295:00 am -
2 stops34h 15m
Fri 10/28:35 pm -
2 stops36h 02m
Deal found 9/4![United Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/297:00 am -
1 stop22h 15m
Mon 11/910:10 am -
2 stops25h 27m
Deal found 9/4![United Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/244:45 pm -
1 stop23h 10m
Tue 11/1010:20 pm -
1 stop27h 20m
Deal found 9/2![United Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 8/31. 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 1/286:29 am -
2 stops32h 26m
Sun 1/3110:10 am -
1 stop21h 59m
Deal found 8/31![United Airlines logo]()
$831
This United Airlines deal was found by Cheapflights users on 9/4. 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 11/66:00 am -
2 stops25h 40m
Wed 11/1810:10 am -
2 stops24h 59m
Deal found 9/4![United Airlines logo]()
$838
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 11/97:00 am -
2 stops24h 40m
Thu 11/126:35 am -
2 stops24h 04m
Deal found 9/4![United Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/76:05 pm -
2 stops33h 30m
Tue 10/138:45 am -
2 stops25h 44m
Deal found 9/3![United Airlines logo]()
$948
Last-minute flights from Seattle to SingaporeDiscover last-minute flight deals from Seattle to Singapore. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Singapore. Data last updated September 5, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 8/31. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:15 pm -
1 stop19h 00m
Sat 10/177:00 am -
1 stop18h 05m
Deal found 8/31![Air Canada logo]()
$767
This FlightHub deal was found by Cheapflights users on 9/2. 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.
Tue 9/155:50 am -
1 stop32h 25m
Tue 10/137:00 am -
1 stop30h 47m
Deal found 9/2![Air Canada logo]()
$758
This Justfly.com deal was found by Cheapflights users on 9/1. 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.
Tue 10/1310:15 am -
Nonstop16h 20m
Tue 10/209:00 am -
Nonstop14h 45m
Deal found 9/1![Singapore Airlines logo]()
$786
This oojo deal was found by Cheapflights users on 9/2. 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 10/1510:15 am -
Nonstop16h 20m
Thu 10/298:55 am -
Nonstop14h 10m
Deal found 9/2![Singapore Airlines logo]()
$757
This Kissandfly.com deal was found by Cheapflights users on 9/1. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:15 am -
Nonstop16h 20m
Fri 10/308:55 am -
Nonstop14h 10m
Deal found 9/1![Singapore Airlines logo]()
$733
This Jettzy deal was found by Cheapflights users on 8/31. 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 10/1610:15 am -
Nonstop16h 20m
Fri 10/239:00 am -
Nonstop14h 45m
Deal found 8/31![Singapore Airlines logo]()
$765
This Kissandfly.com deal was found by Cheapflights users on 9/2. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:15 am -
Nonstop16h 20m
Sat 10/249:00 am -
Nonstop14h 45m
Deal found 9/2![Singapore Airlines logo]()
$748
This Expedia deal was found by Cheapflights users on 8/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:15 pm -
2 stops25h 00m
Thu 10/298:40 am -
1 stop20h 57m
Deal found 8/31![Air Canada logo]()
$764
This Kissandfly.com deal was found by Cheapflights users on 9/4. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:40 am -
Nonstop17h 05m
Sun 11/88:55 am -
Nonstop14h 10m
Deal found 9/4![Singapore Airlines logo]()
$732
This Air Canada deal was found by Cheapflights users on 9/1. 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 10/277:05 pm -
1 stop20h 55m
Fri 11/138:40 am -
1 stop25h 42m
Deal found 9/1![Air Canada logo]()
$730
This FlightHub deal was found by Cheapflights users on 9/4. 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 10/298:40 am -
1 stop31h 20m
Sat 11/78:40 am -
1 stop25h 42m
Deal found 9/4![Air Canada logo]()
$740
This FlightHub deal was found by Cheapflights users on 9/4. 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.
Fri 10/308:40 am -
1 stop31h 20m
Sun 11/88:40 am -
1 stop25h 42m
Deal found 9/4![Air Canada logo]()
$777
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 September 5, 2026.
Search for one-way flight options from Seattle to Singapore. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This oojo deal was found by Cheapflights users on 9/2. 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.
Wed 1/278:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Singapore Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 11/278:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Singapore Airlines logo]()
$300
This Justfly.com deal was found by Cheapflights users on 9/4. 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.
Wed 12/28:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Singapore Airlines logo]()
$304
This iWofly deal was found by Cheapflights users on 9/1. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/198:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Singapore Airlines logo]()
$316
This Justfly.com deal was found by Cheapflights users on 9/5. 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.
Sun 1/108:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Singapore Airlines logo]()
$318
This Trip.com deal was found by Cheapflights users on 9/4. 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.
Fri 2/128:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Singapore Airlines logo]()
$321
This Air Canada deal was found by Cheapflights users on 9/2. 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.
Wed 1/2710:10 am -
1 stop28h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Air Canada logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 1/158:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Singapore Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 1/58:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Singapore Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 11/298:40 am -
Nonstop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Singapore Airlines logo]()
$338
Find flight deals from Seattle to Singapore
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $730 (Air Canada) |
One-way from | $299 (oojo) |
Popular in | December |
Cheapest in | November |
Average price | $824 |
Good round-trip deal | $1,035 or less |
Good one-way deal | $485 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 7,457,451 searches. Data last updated September 5, 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
Quickest round-trip
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Sun 9/27
7:15 pm-5:15 am
1 stop19h 00m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$369
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Sun 2/21
6:57 am-8:15 pm
1 stop21h 18m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$405
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Sun 9/27
6:30 am-6:15 am
2 stops32h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$405
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Thu 10/22
7:11 am-6:35 pm
1 stop20h 24m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$405
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Wed 9/23
4:30 pm-6:15 am
2 stops22h 45m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$405
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Mon 10/5
4:30 pm-6:40 am
1 stop23h 10m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$406
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Wed 10/14
12:50 pm-5:00 am
1 stop25h 10m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$410
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Wed 11/25
12:20 pm-8:15 pm
2 stops39h 55m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$411
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Mon 10/5
6:05 pm-6:35 pm
2 stops33h 30m
Singapore Changi
Wed 12/31
12:00 am-8:30 am
Nonstop0h 00m
$411
SeattleSingapore
SEA Seattle/Tacoma Intl - SIN Singapore Changi
SEASIN
Seattle/Tacoma Intl
Thu 11/5
12:30 pm-8:25 pm
1 stop39h 55m
Singapore Changi
Wed 11/11
10:30 pm-11:51 am
1 stop29h 21m
$822
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Seattle to Singapore
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Singapore in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Singapore flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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
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How far ahead should I book a flight from Seattle to Singapore?
Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Seattle to Singapore?
Currently, November is the cheapest month in which you can book a flight from Seattle to Singapore (average of $707). Flying from Seattle to Singapore in December is currently the most expensive (average of $1,439). 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 SIN?
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 September 5, 2026.
When flying from Seattle to Singapore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 97 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.
What’s the top layover airport for flights from Seattle to Singapore?
Share of 1-stop round-trip flights from Seattle to Singapore chosen by Cheapflights users in the past 12 months, using the same layover each way.
San Francisco (SFO) – chosen by Cheapflights users on 67% of 1-stop itineraries from Seattle to Singapore on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Singapore?
Average round-trip fare for 1-stop flights from Seattle to Singapore, chosen by Cheapflights users in the past 12 months, with the same layover each way.
San Francisco (SFO) is the most affordable 1-stop option, with an average round-trip price of $1,103.
What’s the fastest layover option from Seattle to Singapore?
Shortest average travel time for 1-stop one-way flights from Seattle to Singapore, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via San Francisco (SFO) have the shortest average one-way travel time for 1-stop routes: 20h 08m.
Which airport typically offers the quickest layover for flights from Seattle to Singapore?
Average layover duration for 1-stop one-way flights from Seattle to Singapore, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Tokyo (HND) offer the fastest connection on this route, with an average layover time of 3h 50m.
The best insider tips for Seattle to Singapore flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Singapore trip
Our travel experts
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 September 5, 2026.
Read through reviews of airlines operating flights from Seattle to Singapore, such as Singapore Airlines,Asiana Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Boarding
8.3
Comfort
8.0
Entertainment
8.1
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
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
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Complete your trip
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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 September 5, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on September 5, 2026.
Popular flight searches
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Other flights to Singapore
Explore flights to Singapore departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 5, 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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$378 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$498 | Average$1,174 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$507 | Average$793 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$534 | Average$1,002 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$610 | Average$757 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$621 | Average$892 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$624 | Average$829 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$750 | Average$936 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$774 | Average$933 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$794 | Average$942 | FlexibilityNo cancel fee | On-time79% |