$526+ Cheap flights from Seattle (SEA) to Hangzhou (HGH)
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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HGH
May 21 — May 281
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Hangzhou with Cheapflights
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Hangzhou
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to HangzhouExplore the most affordable flight options available from Seattle to Hangzhou. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.
Explore the most affordable flight options available from Seattle to Hangzhou. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.
This Justfly.com deal was found by Cheapflights users on 4/19. 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 9/612:10 am
SEA
- HGH
1 stop22h 35m
Asiana Airlines
Mon 9/283:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/19![Asiana Airlines logo]()
$865
This Fareboom deal was found by Cheapflights users on 4/20. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 pm
SEA
- HGH
1 stop30h 45m
Cathay Pacific
Wed 9/163:55 pm
HGH
- SEA
1 stop33h 10m
Cathay Pacific
Deal found 4/20![Cathay Pacific logo]()
$882
This oojo deal was found by Cheapflights users on 4/16. 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 4/2911:45 am
SEA
- HGH
1 stop19h 50m
Cathay Pacific
Sun 5/107:45 pm
HGH
- SEA
1 stop29h 20m
Cathay Pacific
Deal found 4/16![Cathay Pacific logo]()
$891
This Justfly.com deal was found by Cheapflights users on 4/19. 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.
Mon 9/712:25 pm
SEA
- HGH
1 stop19h 10m
Cathay Pacific
Wed 9/303:55 pm
HGH
- SEA
1 stop33h 10m
Cathay Pacific
Deal found 4/19![Cathay Pacific logo]()
$896
This Korean Air deal was found by Cheapflights users on 4/19. 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.
Mon 9/76:55 pm
SEA
- HGH
2 stops27h 30m
Korean Air
Mon 9/282:30 pm
HGH
- SEA
1 stop35h 10m
Korean Air
Deal found 4/19![Korean Air logo]()
$911
This Korean Air deal was found by Cheapflights users on 4/20. 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 9/912:50 pm
SEA
- HGH
1 stop33h 35m
Korean Air
Wed 9/162:30 pm
HGH
- SEA
2 stops20h 58m
Korean Air
Deal found 4/20![Korean Air logo]()
$917
This Korean Air deal was found by Cheapflights users on 4/19. 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 9/87:59 pm
SEA
- HGH
2 stops50h 26m
Korean Air
Mon 9/282:30 pm
HGH
- SEA
1 stop35h 10m
Korean Air
Deal found 4/19![Korean Air logo]()
$924
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Sat 9/511:00 am
SEA
- HGH
1 stop18h 10m
Hainan Airlines
Fri 10/29:25 pm
HGH
- SEA
1 stop26h 35m
Hainan Airlines
Deal found 4/19![Hainan Airlines logo]()
$942
This Asiana Airlines deal was found by Cheapflights users on 4/20. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:10 am
SEA
- HGH
1 stop22h 35m
Asiana Airlines
Tue 9/83:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/20![Asiana Airlines logo]()
$956
This Korean Air deal was found by Cheapflights users on 4/19. 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.
Sat 9/56:00 pm
SEA
- HGH
2 stops28h 25m
Korean Air
Mon 9/282:30 pm
HGH
- SEA
1 stop35h 10m
Korean Air
Deal found 4/19![Korean Air logo]()
$961
Best flights from Seattle to HangzhouDiscover carefully curated flight deals from Seattle to Hangzhou that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 21, 2026.
Discover carefully curated flight deals from Seattle to Hangzhou that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 21, 2026.
This Korean Air deal was found by Cheapflights users on 4/20. 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 9/96:00 pm
SEA
- HGH
2 stops28h 25m
Korean Air
Wed 9/162:30 pm
HGH
- SEA
2 stops20h 58m
Korean Air
Deal found 4/20![Korean Air logo]()
$922
This Asiana Airlines deal was found by Cheapflights users on 4/19. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:10 am
SEA
- HGH
1 stop22h 35m
Asiana Airlines
Tue 9/293:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/19![Asiana Airlines logo]()
$956
This oojo deal was found by Cheapflights users on 4/20. 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 9/97:56 pm
SEA
- HGH
2 stops23h 14m
Cathay Pacific
Wed 9/1611:25 am
HGH
- SEA
2 stops34h 41m
Cathay Pacific
Deal found 4/20![Cathay Pacific logo]()
$1,083
This oojo deal was found by Cheapflights users on 4/17. 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 5/211:00 am
SEA
- HGH
1 stop18h 10m
Hainan Airlines
Sat 5/98:25 am
HGH
- SEA
1 stop15h 35m
Hainan Airlines
Deal found 4/17![Hainan Airlines logo]()
$1,140
This Asiana Airlines deal was found by Cheapflights users on 4/16. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:10 am
SEA
- HGH
1 stop22h 35m
Asiana Airlines
Tue 9/83:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/16![Asiana Airlines logo]()
$956
This Asiana Airlines deal was found by Cheapflights users on 4/19. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:10 am
SEA
- HGH
1 stop22h 35m
Asiana Airlines
Tue 9/293:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/19![Asiana Airlines logo]()
$956
This Korean Air deal was found by Cheapflights users on 4/16. 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.
Sat 5/26:05 pm
SEA
- HGH
2 stops28h 20m
Korean Air
Mon 5/112:30 pm
HGH
- SEA
1 stop35h 10m
Korean Air
Deal found 4/16![Korean Air logo]()
$1,061
This Asiana Airlines deal was found by Cheapflights users on 4/19. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:10 am
SEA
- HGH
1 stop22h 35m
Asiana Airlines
Thu 10/13:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/19![Asiana Airlines logo]()
$966
Last-minute flights from Seattle to HangzhouDiscover last-minute flight deals from Seattle to Hangzhou. Data last updated April 21, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Hangzhou. Data last updated April 21, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/17. 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 4/2511:00 am
SEA
- HGH
1 stop18h 10m
Hainan Airlines
Sat 5/28:25 am
HGH
- SEA
1 stop15h 35m
Hainan Airlines
Deal found 4/17![Hainan Airlines logo]()
$1,010
This BusinessClass deal was found by Cheapflights users on 4/17. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:45 am
SEA
- HGH
1 stop19h 50m
Cathay Pacific
Sat 5/23:55 pm
HGH
- SEA
2 stops56h 03m
Cathay Pacific
Deal found 4/17![Cathay Pacific logo]()
$1,132
This oojo deal was found by Cheapflights users on 4/16. 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 4/2911:45 am
SEA
- HGH
1 stop19h 50m
Cathay Pacific
Sun 5/107:45 pm
HGH
- SEA
1 stop29h 20m
Cathay Pacific
Deal found 4/16![Cathay Pacific logo]()
$891
This oojo deal was found by Cheapflights users on 4/16. 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 4/2911:45 am
SEA
- HGH
1 stop19h 50m
Cathay Pacific
Sat 5/98:00 am
HGH
- SEA
1 stop17h 05m
Cathay Pacific
Deal found 4/16![Cathay Pacific logo]()
$1,037
This Justfly.com deal was found by Cheapflights users on 4/16. 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.
Thu 4/3012:55 am
SEA
- HGH
1 stop21h 50m
Asiana Airlines
Sun 5/103:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/16![Asiana Airlines logo]()
$1,050
This Gotogate deal was found by Cheapflights users on 4/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:10 am
SEA
- HGH
1 stop22h 35m
Asiana Airlines
Sun 5/103:10 pm
HGH
- SEA
1 stop15h 05m
Asiana Airlines
Deal found 4/16![Asiana Airlines logo]()
$1,064
This oojo deal was found by Cheapflights users on 4/16. 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 5/211:00 am
SEA
- HGH
1 stop32h 15m
Hainan Airlines
Mon 5/115:05 pm
HGH
- SEA
1 stop30h 55m
Hainan Airlines
Deal found 4/16![Hainan Airlines logo]()
$1,045
This Korean Air deal was found by Cheapflights users on 4/16. 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.
Sat 5/26:05 pm
SEA
- HGH
2 stops28h 20m
Korean Air
Mon 5/112:30 pm
HGH
- SEA
1 stop35h 10m
Korean Air
Deal found 4/16![Korean Air logo]()
$1,061
This BusinessClass deal was found by Cheapflights users on 4/21. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:45 am
SEA
- HGH
1 stop31h 25m
Cathay Pacific
Sun 5/107:45 pm
HGH
- SEA
1 stop29h 20m
Cathay Pacific
Deal found 4/21![Cathay Pacific logo]()
$1,129
One-way flights from Seattle to HangzhouSearch for one-way flight options from Seattle to Hangzhou. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
Search for one-way flight options from Seattle to Hangzhou. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
This KAYAK deal was found by Cheapflights users on 4/17. 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.
Wed 4/291:40 pm
SEA
- HGH
1 stop33h 05m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$526
This Korean Air deal was found by Cheapflights users on 4/17. 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 4/297:35 am
SEA
- HGH
2 stops38h 50m
Korean Air
Deal found 4/17![Korean Air logo]()
$573
Find flight deals from Seattle to Hangzhou
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Hangzhou (HGH). 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 April 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $865 (Justfly.com) |
One-way from | $502 (oojo) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Hangzhou 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 21, 2026.
Use the filters below to find and compare flights from Seattle to Hangzhou that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
6:00 pm-1:25 pm
2 stops28h 25m
Hangzhou
Wed 9/16
2:30 pm-8:28 pm
2 stops20h 58m
$922
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Fri 9/4
12:10 am-1:45 pm
1 stop22h 35m
Hangzhou
Tue 9/29
3:10 pm-3:15 pm
1 stop15h 05m
$956
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Thu 9/3
12:10 am-1:45 pm
1 stop22h 35m
Hangzhou
Tue 9/8
3:10 pm-3:15 pm
1 stop15h 05m
$956
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Thu 9/10
12:10 am-1:45 pm
1 stop22h 35m
Hangzhou
Tue 9/29
3:10 pm-3:15 pm
1 stop15h 05m
$956
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Sun 9/6
12:10 am-1:45 pm
1 stop22h 35m
Hangzhou
Thu 10/1
3:10 pm-3:15 pm
1 stop15h 05m
$966
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Sat 5/2
6:05 pm-1:25 pm
2 stops28h 20m
Hangzhou
Mon 5/11
2:30 pm-10:40 am
1 stop35h 10m
$1,061
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
7:56 pm-10:10 am
2 stops23h 14m
Hangzhou
Wed 9/16
11:25 am-7:06 am
2 stops34h 41m
$1,083
Quickest round-trip
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Sat 5/2
11:00 am-8:10 pm
1 stop18h 10m
Hangzhou
Sat 5/9
8:25 am-9:00 am
1 stop15h 35m
$1,140
Cheapest one-way
Quickest one-way
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Wed 4/29
1:40 pm-1:45 pm
1 stop33h 05m
$526
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Wed 4/29
7:35 am-1:25 pm
2 stops38h 50m
$573
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Seattle-Hangzhou flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Hangzhou flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Hangzhou flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Hangzhou 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-Hangzhou 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 Hangzhou
Have a flexible travel schedule? Discover the best time to fly to Hangzhou from Seattle with our price prediction graph.
SEA-HGH
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.
Reviews of airlines servicing Hangzhou
Get insights into the airlines that provide service to Hangzhou. 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 Hangzhou. Reviews last updated April 21, 2026.
Read reviews from past customers who have flown Cathay Pacific from Seattle to Hangzhou. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Entertainment
7.8
Food
7.3
Comfort
7.6
Boarding
7.9
Overall
7.6
Reviews
1 / 20
4.0
OkayTejbir,Apr 2026
YVR - HKG
Crew
8.1
Entertainment
7.8
Food
7.3
Comfort
7.6
Boarding
7.9
Overall
7.6
Reviews
1 / 20
4.0
OkayTejbir,Apr 2026
YVR - HKG
Related info for your journey
Find useful and relevant information for your journey from Seattle to Hangzhou. 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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Other flights to Hangzhou
Explore flights to Hangzhou departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 21, 2026.
Seattle and Hangzhou flights
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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 April 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Seattle to Hangzhou
Discover the top airline that operate flights from Seattle to Hangzhou. 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$872 | Average$887 | FlexibilityNo cancel fee | On-time72% |