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Cheap flights from Seattle to Lanzhou from $552

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Lanzhou departing on 8/26. 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

Enter your travel dates to find the best prices.
Air China Logo
8:40 am - 11:15 am
SEA
-
LHW
35h 35m
2 stops
Air China Logo
12:05 pm - 6:29 pm
LHW
-
SEA
45h 24m
2 stops
$1,677Air China
Sat, Oct 17 - Tue, Oct 20
China Eastern Logo
9:55 pm - 9:45 pm
SEA
-
LHW
55h 50m
2 stops
China Eastern Logo
2:10 pm - 2:47 pm
LHW
-
SEA
40h 37m
2 stops
$2,784China Eastern
Tue, Nov 3 - Sat, Nov 7
China Eastern Logo
7:20 am - 5:50 pm
SEA
-
LHW
43h 30m
2 stops
China Eastern Logo
7:45 pm - 4:59 pm
LHW
-
SEA
36h 14m
3 stops
$2,947China Eastern
Sat, Oct 17 - Tue, Oct 20
China Eastern Logo
7:20 am - 9:55 am
SEA
-
LHW
35h 35m
2 stops
China Eastern Logo
7:45 pm - 4:59 pm
LHW
-
SEA
36h 14m
3 stops
$3,110China Eastern
Sat, Oct 17 - Tue, Oct 20
United Airlines Logo
4:30 pm - 9:55 pm
SEA
-
LHW
37h 25m
2 stops
United Airlines Logo
11:55 am - 11:21 pm
LHW
-
SEA
27h 26m
2 stops
$11,268United Airlines
Tue, Nov 3 - Sat, Nov 7

China Eastern flights from Seattle to Lanzhou

Our best China Eastern deals on Seattle to Lanzhou flight tickets
China Eastern
Nov 3
SEA9:55 pmSeattle/Tacoma Intl
55h 50m
2 stops
LHW9:45 pmLanzhou Arpt
Nov 7
LHW2:10 pmLanzhou Arpt
40h 37m
2 stops
SEA2:47 pmSeattle/Tacoma Intl
$2,784
China Eastern
Oct 17
SEA7:20 amSeattle/Tacoma Intl
43h 30m
2 stops
LHW5:50 pmLanzhou Arpt
Oct 20
LHW7:45 pmLanzhou Arpt
36h 14m
3 stops
SEA4:59 pmSeattle/Tacoma Intl
$2,947
China Eastern
Oct 17
SEA7:20 amSeattle/Tacoma Intl
35h 35m
2 stops
LHW9:55 amLanzhou Arpt
Oct 20
LHW7:45 pmLanzhou Arpt
36h 14m
3 stops
SEA4:59 pmSeattle/Tacoma Intl
$3,110

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 May 26, 2026.
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

Cheapest round-trip

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 10/17

8:40 am-11:15 am

2 stops35h 35m

Lanzhou Arpt

Tue 10/20

12:05 pm-6:29 pm

2 stops45h 24m

$1,677

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Tue 11/3

9:55 pm-9:45 pm

2 stops55h 50m

Lanzhou Arpt

Sat 11/7

2:10 pm-2:47 pm

2 stops40h 37m

$2,784

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 10/17

7:20 am-5:50 pm

2 stops43h 30m

Lanzhou Arpt

Tue 10/20

7:45 pm-4:59 pm

3 stops36h 14m

$2,947

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 10/17

7:20 am-9:55 am

2 stops35h 35m

Lanzhou Arpt

Tue 10/20

7:45 pm-4:59 pm

3 stops36h 14m

$3,110
Quickest round-trip

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Tue 11/3

4:30 pm-9:55 pm

2 stops37h 25m

Lanzhou Arpt

Sat 11/7

11:55 am-11:21 pm

2 stops27h 26m

$11,268
Cheapest one-way

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Wed 8/26

10:30 am-11:35 am

3 stops34h 05m

$552

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Wed 8/26

12:25 pm-1:15 pm

2 stops57h 50m

$564

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Tue 8/25

12:25 pm-1:15 pm

2 stops33h 50m

$567

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Wed 8/26

10:30 am-11:35 am

3 stops34h 05m

$602
Quickest one-way

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Wed 8/26

12:25 pm-11:15 am

2 stops31h 50m

$625

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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

Fastest flight time

25h 05m

Direct flights

None
The fastest flight from Seattle to Lanzhou takes 25h 05m
There are no direct flights from Seattle to Lanzhou. There are no popular flight routes from Seattle to Lanzhou.
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Frequently asked questions about flying from Seattle to Lanzhou

  • 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 25h 05m.

  • 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.

Frequently asked questions about flying from Seattle to Lanzhou

  • How do I get Price Alerts for flights from Seattle to Lanzhou?

    Confirm your travel details to search for the latest offers for flights from Seattle to Lanzhou. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Lanzhou with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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.

An easier way to manage your Lanzhou trip

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