SEA - HGH

$441 Find Cheap Flights from Seattle to Hangzhou - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Hangzhou departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$651
Cathay Pacific
Mon 11/2Mon 11/16
SEA - HGH • 1 stop
Cheapest one-way
$441
Multiple Airlines
Fri 8/14
SEA - HGH • 1 stop
Top airlines
Cheapest • from $651 (round-trip)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Hangzhou. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $884 (round-trip)
Shortest trip • 18h 06m (one-way)
Insights
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We hope you love your trip to Hangzhou!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Hangzhou (SEA-HGH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Hangzhou that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Hangzhou

Mon, Nov 2 - Mon, Nov 16
Cathay Pacific Logo
10:50 am - 2:30 pm
SEA
-
HGH
35h 40m
1 stop
Cathay Pacific Logo
7:30 pm - 9:10 am
HGH
-
SEA
29h 40m
1 stop
$651Cathay Pacific
Tue, Sep 1 - Tue, Sep 29
Cathay Pacific Logo
12:25 pm - 10:35 pm
SEA
-
HGH
19h 10m
1 stop
Cathay Pacific Logo
11:25 am - 10:05 am
HGH
-
SEA
37h 40m
1 stop
$652Cathay Pacific
Mon, Aug 31 - Wed, Sep 30
Cathay Pacific Logo
12:25 pm - 10:10 am
SEA
-
HGH
30h 45m
1 stop
Cathay Pacific Logo
8:00 am - 10:05 am
HGH
-
SEA
17h 05m
1 stop
$658Cathay Pacific
Mon, Aug 24 - Mon, Sep 7
Cathay Pacific Logo
12:25 pm - 2:40 pm
SEA
-
HGH
35h 15m
1 stop
Cathay Pacific Logo
3:55 pm - 10:20 am
HGH
-
SEA
33h 25m
1 stop
$659Cathay Pacific
Thu, Nov 12 - Mon, Nov 16
Cathay Pacific Logo
10:50 am - 2:30 pm
SEA
-
HGH
35h 40m
1 stop
Cathay Pacific Logo
11:25 am - 9:10 am
HGH
-
SEA
37h 45m
1 stop
$681Cathay Pacific
Mon, Aug 31 - Fri, Oct 2
Cathay Pacific Logo
12:25 pm - 6:30 pm
SEA
-
HGH
39h 05m
1 stop
Cathay Pacific Logo
3:55 pm - 10:05 am
HGH
-
SEA
33h 10m
1 stop
$731Cathay Pacific
Sun, Nov 1 - Sun, Nov 15
Multiple Airlines Logo
3:53 pm - 10:10 am
SEA
-
HGH
26h 17m
2 stops
Multiple Airlines Logo
11:25 am - 9:10 am
HGH
-
SEA
37h 45m
1 stop
$751Multiple Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
6:49 am - 10:35 pm
SEA
-
HGH
24h 46m
2 stops
Multiple Airlines Logo
3:55 pm - 10:05 am
HGH
-
SEA
33h 10m
1 stop
$753Multiple Airlines
Mon, Aug 31 - Tue, Sep 29
Cathay Pacific Logo
12:25 pm - 10:10 am
SEA
-
HGH
30h 45m
1 stop
Cathay Pacific Logo
11:25 am - 4:27 pm
HGH
-
SEA
20h 02m
2 stops
$759Cathay Pacific
Mon, Aug 24 - Mon, Sep 7
Multiple Airlines Logo
12:25 pm - 6:30 pm
SEA
-
HGH
39h 05m
1 stop
Multiple Airlines Logo
3:55 pm - 8:08 am
HGH
-
SEA
31h 13m
2 stops
$762Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Hangzhou flights

Get data-powered insights and trends into flights from Seattle to Hangzhou to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Seattle to Hangzhou?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Seattle to Hangzhou were found on Cathay Pacific ($651) and Asiana Airlines ($906).

Good to know

Cheapest flight

$441
Flight from Seattle to Hangzhou

When to book flights from Seattle to Hangzhou

Are your dates flexible? Find out the best times to travel from Seattle to Hangzhou based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Hangzhou

  • What is the cheapest flight from Seattle to Hangzhou?

    In the last 5 days, the lowest price for a flight from Seattle to Hangzhou was $441 for a one-way ticket and $651 for a round-trip.

  • Do I need a passport to fly between Seattle and Hangzhou?

    Yes, you’ll need a passport to travel to Hangzhou from Seattle.

  • Which aircraft models fly most regularly from Seattle to Hangzhou?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Hangzhou?

    oneworld is the only airline alliance operating flights between Seattle and Hangzhou.

  • How does KAYAK find such low prices on flights from Seattle to Hangzhou?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Hangzhou.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Hangzhou?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hangzhou from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Hangzhou?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Hangzhou with an airline and back to Seattle with another airline. Booking your flights between Seattle and HGH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Hangzhou?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Hangzhou from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seattle to Hangzhou

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Hangzhou. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Hangzhou? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1431 reviews
7.3Food
7.7Entertainment
7.9Boarding
8.1Crew
7.5Comfort
Airline reviews

Everything was good; they still provided a sandwich snack. Good crew

10.0 ExcellentAnonymous, Jul 2026
HKG - CAN
Read more Cathay Pacific reviews

Everything was good; they still provided a sandwich snack. Good crew

Really impressed with the Airline and much with the Crew. The crew was amazingggg, changed seats very easily, provided a lot of snacks on demand, the plane is nice and clean, the menu is well presented; unfortunately, the food is not fantastic, but it's not bad either but nothing to rave about. I am still rating it as excellent because I loved everything else; food improvement will be great!

My flight was delayed by 8 hours I arrived at airport 4hrs earlier but to see if they can reroute me to get my connecting flt to Hong Kong. They auto rebooked my flt. With no chance. Which I missed this entire reservation through kayak. My next flt they got me on was at 6 am. Misses an entire day of my trip abroad all my accommodations seat assignments were missed and missed adding my TSA precheck to my ticket as well as my vegan meal request so I didnt have meals on any of the flight....so not a comfortable experience. Please help me with accommodations upon my return.

The legroom in economy on an A321 is wholly inadequate for a 6’3” man. Deeply dissatisfied.

The plane was dirty, the seats were torn and broken, the service was the most terrible ever, the bathroom dirty, they will not even serve water you had to request it, the meals were terrible, overall less than Zero, I will never fly Cathay Pacific again.

Despite the crew's rough day, they were all very focused and friendly. The flight was too short for a meal, so no rating on that. Re. the AA app. It still isn't ready for prime time. AA works with Cathy Pacific for international flights to LA and the Aa jump to PHX. But the AA app can't find my trip and this can be problematic with flight delays and regatings at LAX.

I do not think there was much that could have been done to make it better. The delayed flight was due to bad weather. The turbulent patches were very unavoidable. Am simply thankful that there were no sudden and / or sharp drops during the flight. I do extend my compliments to captain Marcus I believe was his name and the rest of the crew. They all did an excellent job. My only question is whether I get a refund since the seats I had chosen and paid for were reassigned.

The crew and the food were excellent. The plane was kept quite clean.

Crew were not engaging. Only engaged if requested. Food taste was mediocre

The employees are very nice and good. The delay due to the aircraft is not a good thing. Planning for such problems should be an easy task.

Everything you need to know for your flight from Seattle to Hangzhou

Information on your arrival and departure airports