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Cheap flights from Seattle to Lanzhou from $959

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 Lanzhou departing on 9/14. 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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Find the cheapest flights from Seattle to Lanzhou

Cheap round-trip flights

China Eastern Logo
7:15 am - 11:25 pmSEA-LHW
25h 10m2 stops
China Eastern Logo
6:40 pm - 4:59 pmLHW-SEA
37h 19m2 stops
$959China Eastern
Find Deal
Sun, Sep 14 - Sun, Sep 21
China Eastern Logo
7:15 am - 11:25 pmSEA-LHW
25h 10m2 stops
China Eastern Logo
2:35 pm - 4:59 pmLHW-SEA
41h 24m2 stops
$982China Eastern
Find Deal
Sat, Sep 13 - Sat, Sep 20
China Eastern Logo
7:15 am - 9:55 pmSEA-LHW
23h 40m2 stops
China Eastern Logo
6:40 pm - 4:59 pmLHW-SEA
37h 19m2 stops
$1,006China Eastern
Find Deal
Sat, Sep 13 - Fri, Sep 19
Hainan Airlines Logo
11:00 am - 10:55 pmSEA-LHW
20h 55m1 stop
Hainan Airlines Logo
11:35 am - 9:00 amLHW-SEA
36h 25m2 stops
$1,503Hainan Airlines
Find Deal
Sat, Sep 13 - Fri, Sep 19
Logo
9:25 pm - 1:45 pmSEA-LHW
49h 20m2 stops
Logo
6:15 pm - 10:20 amLHW-SEA
55h 05m3 stops
$1,513
Find Deal
Sun, Sep 14 - Sun, Sep 21
Hainan Airlines Logo
11:00 am - 10:55 pmSEA-LHW
20h 55m1 stop
Hainan Airlines Logo
8:25 pm - 9:00 amLHW-SEA
27h 35m1 stop
$1,569Hainan Airlines
Find Deal
Sat, Sep 13 - Fri, Sep 19
Logo
11:00 am - 4:45 pmSEA-LHW
38h 45m2 stops
Logo
8:20 am - 9:00 amLHW-SEA
15h 40m1 stop
$1,885
Find Deal
Sat, Sep 13 - Sat, Sep 20
Logo
11:00 am - 9:20 amSEA-LHW
31h 20m1 stop
Logo
8:20 am - 9:00 amLHW-SEA
15h 40m1 stop
$1,976
Find Deal
Sat, Sep 13 - Sat, Sep 20
Delta Logo
11:25 am - 11:25 pmSEA-LHW
21h 00m1 stop
Delta Logo
9:00 am - 1:55 pmLHW-SEA
19h 55m1 stop
$9,139Delta
Find Deal
Sun, Sep 14 - Sun, Sep 21
Delta Logo
7:15 am - 11:25 pmSEA-LHW
25h 10m2 stops
Delta Logo
9:00 am - 1:55 pmLHW-SEA
19h 55m1 stop
$9,143Delta
Find Deal
Sun, Sep 14 - Sun, Sep 21

Hainan Airlines flights from Seattle to Lanzhou

Our best Hainan Airlines deals on Seattle to Lanzhou flight tickets
Hainan Airlines
Sep 13
SEA11:00 amSeattle/Tacoma Intl
20h 55m
1 stop
LHW10:55 pmLanzhou Arpt
Sep 19
LHW11:35 amLanzhou Arpt
36h 25m
2 stops
SEA9:00 amSeattle/Tacoma Intl
$1,503
Find similar
Hainan Airlines
Sep 13
SEA11:00 amSeattle/Tacoma Intl
20h 55m
1 stop
LHW10:55 pmLanzhou Arpt
Sep 19
LHW8:25 pmLanzhou Arpt
27h 35m
1 stop
SEA9:00 amSeattle/Tacoma Intl
$1,569
Find similar

China Eastern flights from Seattle to Lanzhou

Our best China Eastern deals on Seattle to Lanzhou flight tickets
China Eastern
Sep 14
SEA7:15 amSeattle/Tacoma Intl
25h 10m
2 stops
LHW11:25 pmLanzhou Arpt
Sep 21
LHW6:40 pmLanzhou Arpt
37h 19m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$959
Find similar
China Eastern
Sep 13
SEA7:15 amSeattle/Tacoma Intl
25h 10m
2 stops
LHW11:25 pmLanzhou Arpt
Sep 20
LHW2:35 pmLanzhou Arpt
41h 24m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$982
Find similar
China Eastern
Sep 13
SEA7:15 amSeattle/Tacoma Intl
23h 40m
2 stops
LHW9:55 pmLanzhou Arpt
Sep 19
LHW6:40 pmLanzhou Arpt
37h 19m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$1,006
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Lanzhou 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, momondo users made 832,500 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Seattle to Lanzhou that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sun 9/14

7:15 am-11:25 pm

2 stops25h 10m

Lanzhou Arpt

Sun 9/21

6:40 pm-4:59 pm

2 stops37h 19m

$959

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 9/13

7:15 am-11:25 pm

2 stops25h 10m

Lanzhou Arpt

Sat 9/20

2:35 pm-4:59 pm

2 stops41h 24m

$982

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 9/13

7:15 am-9:55 pm

2 stops23h 40m

Lanzhou Arpt

Fri 9/19

6:40 pm-4:59 pm

2 stops37h 19m

$1,006

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 9/13

11:00 am-10:55 pm

1 stop20h 55m

Lanzhou Arpt

Fri 9/19

11:35 am-9:00 am

2 stops36h 25m

$1,503

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sun 9/14

9:25 pm-1:45 pm

2 stops49h 20m

Lanzhou Arpt

Sun 9/21

6:15 pm-10:20 am

3 stops55h 05m

$1,513

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 9/13

11:00 am-10:55 pm

1 stop20h 55m

Lanzhou Arpt

Fri 9/19

8:25 pm-9:00 am

1 stop27h 35m

$1,569

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 9/13

11:00 am-4:45 pm

2 stops38h 45m

Lanzhou Arpt

Sat 9/20

8:20 am-9:00 am

1 stop15h 40m

$1,885

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 9/13

11:00 am-9:20 am

1 stop31h 20m

Lanzhou Arpt

Sat 9/20

8:20 am-9:00 am

1 stop15h 40m

$1,976

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sun 9/14

11:25 am-11:25 pm

1 stop21h 00m

Lanzhou Arpt

Sun 9/21

9:00 am-1:55 pm

1 stop19h 55m

$9,139

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sun 9/14

7:15 am-11:25 pm

2 stops25h 10m

Lanzhou Arpt

Sun 9/21

9:00 am-1:55 pm

1 stop19h 55m

$9,143

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Lanzhou from

How to get the cheapest flight ticket from Seattle to Lanzhou

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

What is the cheapest day to depart on your flight to Lanzhou?

The cheapest day to depart from Seattle to Lanzhou is on a Wednesday when prices can be found for as low as $1,825. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $2,410. These prices are subject to change though, so be sure to set up a Price Alert for flights to Lanzhou.

When to book flights from Seattle to Lanzhou

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Lanzhou according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Lanzhou (SEA to LHW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Lanzhou

Direct flights

None
There are no direct flights from Seattle to Lanzhou. There are no popular flight routes from Seattle to Lanzhou.
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  • How far is Seattle/Tacoma Intl to Lanzhou Arpt by plane?

    The straight-line distance from Seattle/Tacoma Intl to Lanzhou Arpt is 5986.9 mi. In terms of flight time, this usually takes a little over 20h 55m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Lanzhou Arpt Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Lanzhou Arpt Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Lanzhou Arpt 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 Lanzhou Arpt Airport.

  • What documentation or ID do you need to fly to Lanzhou Arpt Airport?

    The travel and health documents you'll need for your trip to Lanzhou Arpt Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lanzhou Arpt Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Lanzhou?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Lanzhou from Seattle.

Can I find flights from Seattle to Lanzhou with flexible booking policies on momondo?

momondo does allow users to show only those flights to Lanzhou from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Lanzhou?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Lanzhou.

I’m not ready to book a flight from Seattle to Lanzhou right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Lanzhou, momondo offers a useful price alert feature which will track prices for flights to Lanzhou from Seattle and alert you when they change.

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