$447+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HGH
Sep 3 — Sep 101
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Hangzhou with Cheapflights
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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 August 4, 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 August 4, 2026.
This oojo deal was found by Cheapflights users on 7/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 pm
SEA
- HGH
1 stop19h 10m
Cathay Pacific
Wed 11/257:30 pm
HGH
- SEA
1 stop29h 40m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$651
This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:50 am
SEA
- HGH
1 stop35h 40m
Cathay Pacific
Tue 4/137:45 pm
HGH
- SEA
1 stop29h 20m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$658
This KAYAK deal was found by Cheapflights users on 7/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:50 am
SEA
- HGH
1 stop39h 25m
Cathay Pacific
Wed 4/148:00 am
HGH
- SEA
1 stop17h 05m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$681
This KAYAK deal was found by Cheapflights users on 7/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:50 am
SEA
- HGH
1 stop31h 20m
Cathay Pacific
Mon 4/123:55 pm
HGH
- SEA
1 stop33h 10m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$731
This oojo deal was found by Cheapflights users on 7/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:41 am
SEA
- HGH
2 stops22h 54m
Multiple Airlines
Wed 11/253:45 pm
HGH
- SEA
1 stop33h 25m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$752
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:59 pm
SEA
- HGH
2 stops32h 36m
Multiple Airlines
Thu 12/108:00 am
HGH
- SEA
1 stop17h 10m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$756
This KAYAK deal was found by Cheapflights users on 7/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:50 am
SEA
- HGH
1 stop35h 40m
Cathay Pacific
Fri 4/163:55 pm
HGH
- SEA
1 stop33h 10m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$781
This KAYAK deal was found by Cheapflights users on 7/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:56 am
SEA
- HGH
2 stops37h 34m
Cathay Pacific
Tue 4/137:45 pm
HGH
- SEA
1 stop29h 20m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$787
This Cathay Pacific deal was found by Cheapflights users on 8/2. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:50 am
SEA
- HGH
1 stop35h 40m
Cathay Pacific
Mon 11/1611:25 am
HGH
- SEA
1 stop37h 45m
Cathay Pacific
Deal found 8/2![Cathay Pacific logo]()
$791
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 August 4, 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 August 4, 2026.
This Cathay Pacific deal was found by Cheapflights users on 7/31. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:50 am
SEA
- HGH
1 stop35h 40m
Cathay Pacific
Mon 11/1611:25 am
HGH
- SEA
1 stop37h 45m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$681
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:59 pm
SEA
- HGH
2 stops32h 36m
Multiple Airlines
Thu 12/108:00 am
HGH
- SEA
1 stop17h 10m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$756
This Korean Air deal was found by Cheapflights users on 8/3. 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.
Mon 8/244:23 pm
SEA
- HGH
2 stops30h 02m
Korean Air
Mon 11/232:40 pm
HGH
- SEA
2 stops23h 25m
Korean Air
Deal found 8/3![Korean Air logo]()
$923
This oojo deal was found by Cheapflights users on 8/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 pm
SEA
- HGH
1 stop19h 10m
Cathay Pacific
Wed 11/253:45 pm
HGH
- SEA
1 stop33h 25m
Cathay Pacific
Deal found 8/4![Cathay Pacific logo]()
$761
This Korean Air deal was found by Cheapflights users on 7/31. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:30 pm
SEA
- HGH
2 stops58h 00m
Korean Air
Mon 4/122:30 pm
HGH
- SEA
2 stops33h 21m
Korean Air
Deal found 7/31![Korean Air logo]()
$937
This oojo deal was found by Cheapflights users on 8/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:50 am
SEA
- HGH
1 stop19h 40m
Cathay Pacific
Wed 1/138:00 am
HGH
- SEA
1 stop17h 10m
Cathay Pacific
Deal found 8/3![Cathay Pacific logo]()
$885
Last-minute flights from Seattle to HangzhouDiscover last-minute flight deals from Seattle to Hangzhou. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Hangzhou. Data last updated August 4, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 7/30. 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 9/812:25 pm
SEA
- HGH
1 stop35h 15m
Cathay Pacific
Thu 12/108:00 am
HGH
- SEA
1 stop17h 10m
Cathay Pacific
Deal found 7/30![Cathay Pacific logo]()
$658
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:59 pm
SEA
- HGH
2 stops32h 36m
Multiple Airlines
Thu 12/108:00 am
HGH
- SEA
1 stop17h 10m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$756
This oojo deal was found by Cheapflights users on 7/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 pm
SEA
- HGH
1 stop19h 10m
Cathay Pacific
Wed 11/257:30 pm
HGH
- SEA
1 stop29h 40m
Cathay Pacific
Deal found 7/31![Cathay Pacific logo]()
$651
This oojo deal was found by Cheapflights users on 7/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:41 am
SEA
- HGH
2 stops22h 54m
Multiple Airlines
Wed 11/253:45 pm
HGH
- SEA
1 stop33h 25m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$752
This oojo deal was found by Cheapflights users on 8/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:45 am
SEA
- HGH
1 stop35h 55m
Cathay Pacific
Thu 9/248:00 am
HGH
- SEA
1 stop17h 05m
Cathay Pacific
Deal found 8/3![Cathay Pacific logo]()
$835
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 August 4, 2026.
Search for one-way flight options from Seattle to Hangzhou. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This oojo deal was found by Cheapflights users on 8/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:05 pm
SEA
- HGH
1 stop32h 40m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$447
This Mytrip deal was found by Cheapflights users on 8/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:59 pm
SEA
- HGH
2 stops27h 56m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$460
This Booking.com deal was found by Cheapflights users on 8/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:00 am
SEA
- HGH
1 stop31h 15m
Hainan Airlines
Deal found 8/2![Hainan Airlines logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Thu 10/18:15 pm
SEA
- HGH
2 stops48h 00m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$493
This Booking.com deal was found by Cheapflights users on 8/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:55 am
SEA
- HGH
1 stop20h 35m
Hainan Airlines
Deal found 8/3![Hainan Airlines logo]()
$505
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Sat 9/265:36 pm
SEA
- HGH
2 stops29h 09m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$2,311
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Tue 9/297:56 pm
SEA
- HGH
2 stops26h 09m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$2,352
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 August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $651 (oojo) |
One-way from | $417 (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 August 4, 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
Thu 11/12
10:50 am-2:30 pm
1 stop35h 40m
Hangzhou
Mon 11/16
11:25 am-9:10 am
1 stop37h 45m
$681
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Tue 9/8
10:59 pm-10:35 pm
2 stops32h 36m
Hangzhou
Thu 12/10
8:00 am-9:10 am
1 stop17h 10m
$756
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
12:25 pm-10:35 pm
1 stop19h 10m
Hangzhou
Wed 11/25
3:45 pm-9:10 am
1 stop33h 25m
$761
Quickest round-trip
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Tue 12/1
10:50 am-10:30 pm
1 stop19h 40m
Hangzhou
Wed 1/13
8:00 am-9:10 am
1 stop17h 10m
$885
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Mon 8/24
4:23 pm-1:25 pm
2 stops30h 02m
Hangzhou
Mon 11/23
2:40 pm-10:05 pm
2 stops23h 25m
$923
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Tue 10/27
12:30 pm-1:30 pm
2 stops58h 00m
Hangzhou
Mon 4/12
2:30 pm-8:51 am
2 stops33h 21m
$937
Cheapest one-way
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Thu 8/13
2:05 pm-1:45 pm
1 stop32h 40m
$447
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Tue 8/11
3:59 pm-10:55 am
2 stops27h 56m
$460
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Tue 8/11
11:00 am-9:15 am
1 stop31h 15m
$466
Quickest one-way
SeattleHangzhou
SEA - HGH
SEAHGH
Seattle/Tacoma Intl
Thu 10/1
11:55 am-11:30 pm
1 stop20h 35m
$505
Showing 1-10 of 15 resultsSorted 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 August 4, 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.
Boarding
7.9
Comfort
7.6
Overall
7.6
Crew
8.1
Entertainment
7.7
Food
7.3
Reviews
1 / 20
10.0
ExcellentErnest,Jun 2026
SFO - HKG
Boarding
7.9
Comfort
7.6
Overall
7.6
Crew
8.1
Entertainment
7.7
Food
7.3
Reviews
1 / 20
10.0
ExcellentErnest,Jun 2026
SFO - 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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Complete your trip
Complete your trip to Hangzhou by adding a car rental and/or hotel reservation to your travel itinerary.
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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 August 4, 2026.
Seattle and Hangzhou flights
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Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 4, 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 August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$872 | Average$983 | FlexibilityNo cancel fee | On-time72% |