Cheap flights from Seattle to Hangzhou from $760
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Hangzhou departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Our best Cathay Pacific deals on Seattle to Hangzhou flight tickets
Hainan Airlines flights from Seattle to Hangzhou
Our best Hainan Airlines deals on Seattle to Hangzhou flight tickets
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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
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
12:25 pm-10:35 pm
1 stop19h 10m
Hangzhou
Wed 11/25
7:30 pm-9:10 am
1 stop29h 40m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Tue 11/3
10:50 am-10:10 am
1 stop31h 20m
Hangzhou
Tue 11/17
3:45 pm-9:10 am
1 stop33h 25m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Mon 11/9
10:50 am-10:10 am
1 stop31h 20m
Hangzhou
Mon 11/16
8:00 am-9:10 am
1 stop17h 10m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
12:25 pm-10:35 pm
1 stop19h 10m
Hangzhou
Wed 11/25
7:30 pm-9:10 am
1 stop29h 40m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
12:25 pm-10:35 pm
1 stop19h 10m
Hangzhou
Wed 11/25
7:30 pm-9:10 am
1 stop29h 40m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Thu 10/1
11:45 am-6:30 pm
1 stop39h 45m
Hangzhou
Mon 10/5
7:45 pm-10:05 am
1 stop29h 20m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Thu 10/1
11:45 am-6:30 pm
1 stop39h 45m
Hangzhou
Mon 10/5
7:45 pm-10:05 am
1 stop29h 20m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
7:18 am-10:35 pm
2 stops24h 17m
Hangzhou
Wed 11/25
8:00 am-9:10 am
1 stop17h 10m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
7:18 am-10:35 pm
2 stops24h 17m
Hangzhou
Wed 11/25
8:00 am-9:10 am
1 stop17h 10m
SeattleHangzhou
SEA Seattle/Tacoma Intl - HGH Hangzhou
SEAHGH
Seattle/Tacoma Intl
Wed 9/9
7:18 am-10:35 pm
2 stops24h 17m
Hangzhou
Wed 11/25
8:00 am-9:10 am
1 stop17h 10m
See travel insights to Hangzhou from
How to get the cheapest flight ticket from Seattle to Hangzhou
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
When to book flights from Seattle to Hangzhou
Cheap Seattle to Hangzhou (SEA to HGH) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Hangzhou
Frequently asked questions about flying from Seattle to Hangzhou
How far is Seattle/Tacoma Intl to Hangzhou by plane?
Seattle/Tacoma Intl and Hangzhou are 5802.6 mi apart from one another. 19h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Hangzhou Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Hangzhou Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Hangzhou Airport?
As of August 2026, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Hangzhou Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Hangzhou Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Hangzhou Airport.
What documentation or ID do you need to fly to Hangzhou Airport?
The travel and health documents required for your trip to Hangzhou Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hangzhou Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Hangzhou?
momondo data reveals that the most frequently booked airline on the route from Seattle to Hangzhou is Cathay Pacific, representing 100% of all bookings.
Best airlines flying from Seattle to Hangzhou
Compare and see reviews for airlines that fly from Seattle to Hangzhou with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $872 | Free Cancellation | Rating 7.6 1,451 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Hangzhou?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Hangzhou. momondo saves you time and could save you money on your trip.
Can I find flights from Seattle to Hangzhou with flexible booking policies on momondo?
All flight searches from Seattle to Hangzhou on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Seattle to Hangzhou?
momondo helps you find the best flight between Seattle and Hangzhou by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Seattle to Hangzhou right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Hangzhou now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Hangzhou and let you know when they change.