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Cheap flights from Seattle to Lanzhou from $517

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 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Lanzhou

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:15 pm - 1:20 pm
SEA
-
LHW
27h 05m
2 stops
Multiple Airlines Logo
2:25 pm - 8:08 am
LHW
-
SEA
32h 43m
2 stops
$1,136Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
Multiple Airlines Logo
3:58 pm - 1:20 pm
SEA
-
LHW
30h 22m
2 stops
Multiple Airlines Logo
2:25 pm - 8:08 am
LHW
-
SEA
32h 43m
2 stops
$1,138Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
7:56 pm - 11:55 am
SEA
-
LHW
24h 59m
2 stops
Multiple Airlines Logo
11:45 am - 8:08 am
LHW
-
SEA
35h 23m
2 stops
$1,168Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
5:10 pm - 1:20 pm
SEA
-
LHW
29h 10m
2 stops
Multiple Airlines Logo
11:45 am - 8:08 am
LHW
-
SEA
35h 23m
2 stops
$1,170Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
9:18 pm - 11:55 am
SEA
-
LHW
47h 37m
2 stops
Multiple Airlines Logo
7:20 pm - 8:52 am
LHW
-
SEA
52h 32m
3 stops
$1,193Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
11:00 am - 10:55 pm
SEA
-
LHW
20h 55m
1 stop
Multiple Airlines Logo
9:15 pm - 9:55 am
LHW
-
SEA
51h 40m
2 stops
$1,253Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
Multiple Airlines Logo
12:10 am - 10:20 pm
SEA
-
LHW
31h 10m
2 stops
Multiple Airlines Logo
1:05 pm - 10:05 am
LHW
-
SEA
36h 00m
3 stops
$1,270Multiple Airlines
Sun, Aug 16 - Mon, Aug 24
Multiple Airlines Logo
12:10 am - 11:45 pm
SEA
-
LHW
32h 35m
3 stops
Multiple Airlines Logo
1:05 pm - 10:05 am
LHW
-
SEA
36h 00m
3 stops
$1,339Multiple Airlines
Sun, Aug 16 - Mon, Aug 24
Multiple Airlines Logo
12:25 pm - 9:05 am
SEA
-
LHW
29h 40m
2 stops
Multiple Airlines Logo
9:40 pm - 3:32 pm
LHW
-
SEA
32h 52m
3 stops
$1,402Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
Hainan Airlines Logo
12:20 pm - 4:40 pm
SEA
-
LHW
37h 20m
3 stops
Hainan Airlines Logo
5:35 pm - 9:00 am
LHW
-
SEA
54h 25m
2 stops
$1,403Hainan Airlines
Thu, Aug 6 - Sun, Aug 9

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China Eastern flights from Seattle to Lanzhou

Our best China Eastern deals on Seattle to Lanzhou flight tickets
China Eastern
Sep 30
SEA7:15 amSeattle/Tacoma Intl
41h 55m
2 stops
LHW4:10 pmLanzhou Arpt
Oct 4
LHW6:40 pmLanzhou Arpt
37h 07m
2 stops
SEA4:47 pmSeattle/Tacoma Intl
$2,714
China Eastern
Nov 3
SEA9:55 pmSeattle/Tacoma Intl
55h 50m
2 stops
LHW9:45 pmLanzhou Arpt
Nov 7
LHW2:10 pmLanzhou Arpt
45h 13m
2 stops
SEA7:23 pmSeattle/Tacoma Intl
$2,814
China Eastern
Aug 24
SEA7:16 amSeattle/Tacoma Intl
25h 09m
2 stops
LHW11:25 pmLanzhou Arpt
Aug 31
LHW7:20 amLanzhou Arpt
24h 17m
2 stops
SEA4:37 pmSeattle/Tacoma Intl
$2,834

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 July 12, 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
Quickest round-trip

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Tue 8/25

7:15 pm-1:20 pm

2 stops27h 05m

Lanzhou Arpt

Tue 9/1

2:25 pm-8:08 am

2 stops32h 43m

$1,136

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sat 8/22

3:58 pm-1:20 pm

2 stops30h 22m

Lanzhou Arpt

Sat 8/29

2:25 pm-8:08 am

2 stops32h 43m

$1,138

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Mon 8/17

7:56 pm-11:55 am

2 stops24h 59m

Lanzhou Arpt

Mon 8/24

11:45 am-8:08 am

2 stops35h 23m

$1,168

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Mon 8/17

5:10 pm-1:20 pm

2 stops29h 10m

Lanzhou Arpt

Mon 8/24

11:45 am-8:08 am

2 stops35h 23m

$1,170

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Mon 8/17

9:18 pm-11:55 am

2 stops47h 37m

Lanzhou Arpt

Mon 8/24

7:20 pm-8:52 am

3 stops52h 32m

$1,193

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Tue 8/25

11:00 am-10:55 pm

1 stop20h 55m

Lanzhou Arpt

Tue 9/1

9:15 pm-9:55 am

2 stops51h 40m

$1,253

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sun 8/16

12:10 am-10:20 pm

2 stops31h 10m

Lanzhou Arpt

Mon 8/24

1:05 pm-10:05 am

3 stops36h 00m

$1,270

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Sun 8/16

12:10 am-11:45 pm

3 stops32h 35m

Lanzhou Arpt

Mon 8/24

1:05 pm-10:05 am

3 stops36h 00m

$1,339

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Tue 8/25

12:25 pm-9:05 am

2 stops29h 40m

Lanzhou Arpt

Tue 9/1

9:40 pm-3:32 pm

3 stops32h 52m

$1,402

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Thu 8/6

12:20 pm-4:40 pm

3 stops37h 20m

Lanzhou Arpt

Sun 8/9

5:35 pm-9:00 am

2 stops54h 25m

$1,403

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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

35h 07m

Direct flights

None
The fastest flight from Seattle to Lanzhou takes 35h 07m
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 35h 07m.

  • 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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