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Cheap flights from Washington to Lanzhou from $1,821

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Lanzhou departing on 6/25. 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
0 bags

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Find the cheapest flights from Washington to Lanzhou

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:15 am - 12:30 am
SEA
-
LHW
56h 15m
3 stops
Multiple Airlines Logo
8:00 pm - 4:35 pm
LHW
-
SEA
35h 35m
3 stops
$1,821Multiple Airlines
Thu, Jun 25 - Fri, Jul 3
Multiple Airlines Logo
9:18 pm - 1:20 pm
SEA
-
LHW
49h 02m
2 stops
Multiple Airlines Logo
7:30 am - 9:49 am
LHW
-
SEA
41h 19m
2 stops
$2,014Multiple Airlines
Fri, Jun 26 - Fri, Jul 3
Multiple Airlines Logo
7:50 pm - 12:00 pm
SEA
-
LHW
25h 10m
2 stops
Multiple Airlines Logo
8:25 pm - 9:00 am
LHW
-
SEA
27h 35m
1 stop
$2,512Multiple Airlines
Fri, Jun 26 - Fri, Jul 3
Multiple Airlines Logo
12:50 am - 12:40 am
SEA
-
LHW
32h 50m
2 stops
Multiple Airlines Logo
2:05 pm - 10:07 am
LHW
-
SEA
35h 02m
3 stops
$2,517Multiple Airlines
Thu, Jun 25 - Fri, Jul 3

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 14, 2026.
Use the filters below to find and compare flights from Washington 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

Thu 6/25

1:15 am-12:30 am

3 stops56h 15m

Lanzhou Arpt

Fri 7/3

8:00 pm-4:35 pm

3 stops35h 35m

$1,821

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Fri 6/26

9:18 pm-1:20 pm

2 stops49h 02m

Lanzhou Arpt

Fri 7/3

7:30 am-9:49 am

2 stops41h 19m

$2,014
Quickest round-trip

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Fri 6/26

7:50 pm-12:00 pm

2 stops25h 10m

Lanzhou Arpt

Fri 7/3

8:25 pm-9:00 am

1 stop27h 35m

$2,512

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Thu 6/25

12:50 am-12:40 am

2 stops32h 50m

Lanzhou Arpt

Fri 7/3

2:05 pm-10:07 am

3 stops35h 02m

$2,517

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap State of Washington to Lanzhou flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Lanzhou

Fastest flight time

43h 30m

Direct flights

None
The fastest flight from State of Washington to Lanzhou takes 43h 30m
There are no direct flights from State of Washington to Lanzhou. There are no popular flight routes from State of Washington to Lanzhou.
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Frequently asked questions about flying from Washington to Lanzhou

  • When did momondo last update prices for flights from Washington to Lanzhou Arpt Airport?

    Prices for flights from Washington to Lanzhou Arpt Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington to Lanzhou Arpt Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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 Washington to Lanzhou

  • How do I get Price Alerts for flights from State of Washington to Lanzhou?

    Confirm your travel details to search for the latest offers for flights from State of Washington 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 State of Washington to Lanzhou with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

Finding the right flight to Lanzhou from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Lanzhou quick and easy, saving you time and money.

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

Flights from Washington to Lanzhou with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lanzhou from Washington.

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

Yes. momondo can track prices for Washington to Lanzhou flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Sat 6/13
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