SEA - HGH

$427 Find Cheap Flights from Seattle to Hangzhou

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 2/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Hangzhou

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Hangzhou, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Hangzhou, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$825
Air China
Wed 1/21Wed 1/28
SEA - HGH • 2 stops
Cheapest one-way
$427
Multiple Airlines
Sun 2/8
SEA - HGH • 2 stops
Top airlines
Air China
Cheapest • from $825 (round-trip)
Hainan Airlines
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Wed, Jan 21 - Wed, Jan 28
Air China Logo
6:03 am - 9:55 pm
SEA
-
HGH
23h 52m2 stops
Air China Logo
8:00 am - 6:26 pm
HGH
-
SEA
26h 26m2 stops
$825Air China
Wed, Jan 21 - Wed, Jan 28
China Eastern Logo
2:02 pm - 11:10 pm
SEA
-
HGH
41h 08m2 stops
China Eastern Logo
8:00 am - 8:36 pm
HGH
-
SEA
28h 36m2 stops
$845China Eastern
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
11:45 pm - 2:45 pm
SEA
-
HGH
23h 00m1 stop
Multiple Airlines Logo
10:00 pm - 3:05 pm
HGH
-
SEA
33h 05m2 stops
$848Multiple Airlines
Sat, Feb 7 - Sat, Feb 21
Asiana Airlines Logo
12:10 am - 1:45 pm
SEA
-
HGH
21h 35m1 stop
Asiana Airlines Logo
3:05 pm - 1:55 pm
HGH
-
SEA
14h 50m1 stop
$854Asiana Airlines
Sun, Feb 8 - Sun, Feb 22
Asiana Airlines Logo
12:10 am - 1:45 pm
SEA
-
HGH
21h 35m1 stop
Asiana Airlines Logo
3:05 pm - 1:55 pm
HGH
-
SEA
14h 50m1 stop
$893Asiana Airlines
Sun, Feb 8 - Wed, Feb 25
Asiana Airlines Logo
12:10 am - 1:45 pm
SEA
-
HGH
21h 35m1 stop
Asiana Airlines Logo
3:05 pm - 1:55 pm
HGH
-
SEA
14h 50m1 stop
$905Asiana Airlines
Mon, Feb 9 - Mon, Feb 23
Korean Air Logo
12:25 pm - 10:55 am
SEA
-
HGH
30h 30m2 stops
Korean Air Logo
2:40 pm - 9:00 am
HGH
-
SEA
34h 20m1 stop
$910Korean Air
Wed, Jan 21 - Wed, Jan 28
Korean Air Logo
11:00 am - 1:30 pm
SEA
-
HGH
34h 30m1 stop
Korean Air Logo
12:05 pm - 8:36 pm
HGH
-
SEA
24h 31m2 stops
$916Korean Air
Mon, Feb 9 - Sun, Feb 22
Cathay Pacific Logo
3:57 pm - 2:30 pm
SEA
-
HGH
30h 33m2 stops
Cathay Pacific Logo
7:30 pm - 4:04 pm
HGH
-
SEA
36h 34m2 stops
$917Cathay Pacific
Sun, Feb 8 - Mon, Feb 23
Cathay Pacific Logo
7:55 pm - 2:30 pm
SEA
-
HGH
26h 35m2 stops
Cathay Pacific Logo
3:45 pm - 8:47 pm
HGH
-
SEA
21h 02m2 stops
$920Cathay Pacific
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Seattle to Hangzhou were found on Air China ($825) and China Eastern ($845).

Which airlines fly non-stop between Seattle and Hangzhou?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Seattle to Hangzhou.

There is just one airline that flies from Seattle to Hangzhou direct and that is Hainan Airlines. The best round-trip deal found from Hainan Airlines for the route is $843.

Good to know

Cheapest flight$427
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 3 days, the lowest price for a flight from Seattle to Hangzhou was $427 for a one-way ticket and $825 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.

  • 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.
8.2
Hainan AirlinesOverall score based on 59 reviews
8.4Boarding
8.0Comfort
8.8Crew
8.3Food
7.6Entertainment
Airline reviews

The absolute worst experience I’ve ever had flying. I am a regular flyer and was transferring from Seoul to Beijing to the USA. I was told the companies were partnered so no need to pick up my baggage, I got through eventually after a terribly confusing airport and unhelpful staff, had issues with the check in counter where they didn’t understand my baggage tag from the previous airline and that my bag needed transferring (which as a company partnership they should have communication like this) and then I got through extremely stressful security with multiple stops and the plane was poor quality (same exact quality as my 1.5 hour flight there) for a 16 hour flight with poor food quality, slow trash service, and less than 15 movies total for flight options I was absolutely over it. My only good thing was I was lucky enough to be sitting by myself in a row

2.0 MediocreAnonymous, Dec 2025
PEK - BOS
Read more Hainan Airlines reviews

The absolute worst experience I’ve ever had flying. I am a regular flyer and was transferring from Seoul to Beijing to the USA. I was told the companies were partnered so no need to pick up my baggage, I got through eventually after a terribly confusing airport and unhelpful staff, had issues with the check in counter where they didn’t understand my baggage tag from the previous airline and that my bag needed transferring (which as a company partnership they should have communication like this) and then I got through extremely stressful security with multiple stops and the plane was poor quality (same exact quality as my 1.5 hour flight there) for a 16 hour flight with poor food quality, slow trash service, and less than 15 movies total for flight options I was absolutely over it. My only good thing was I was lucky enough to be sitting by myself in a row

Great although I believe they are able to redistuibute the passangers in a more comfortable way if the flight is not full dor such long flights. Unless the seats are paid for, of coruse.

Good flight, on time. The aircraft was old and the seats lost their shapes. Food was just acceptable.

Two hours delayed departure ! Lost one of our luggage! Two days later found the luggage, again waiting for more than two hours to get the lost luggage because locked at other airline office.

Hainan Airlines was amongst the best. It's sad to see her becoming just mediocre. I recommended her as outstanding. I won't recommend her again.

Such amazing service! Wonderful flight attendants who actually care about the passengers and go out of their way to make our journey easier!!

They asked how much cash i have . I said no cash they said bring cash from atm . Why they even care about my cash.

Flight was scheduled to depart at 1210 hrs. It was delayed 1 hour 20 minutes (maybe for air traffic control reasons). The seats were worn out and very uncomfortable. Lunch was typical for airline. Flight free were friendly.

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

Information on your arrival and departure airports