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Lanzhou

$915+ Cheap flights from Washington to Lanzhou (LHW)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHW
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Washington to Lanzhou

Keep the following information in mind while searching for Washington to Lanzhou flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$915
(Hainan Airlines)
Provider with most accurate pricing for Seattle/Tacoma Intl-Lanzhou Arpt flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Lanzhou Arpt flights.
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From Washington to Lanzhou Arpt
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Find flight deals from Washington to Lanzhou

Best flights from Washington to Lanzhou
Discover carefully curated flight deals from Washington to Lanzhou that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2025.

This Hainan Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hainan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:05 amSEA - LHW
3 stops38h 55mHainan Airlines
Mon 3/911:30 amLHW - SEA
1 stop36h 30mHainan Airlines
Deal found 10/29$915

Cheapflights Fare Finder

 
Customize your flight search to find flights from 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, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Washington to Lanzhou that are best for you.

Fly from

Washington

Fly to

Lanzhou

Route

Depart

Return

Price

SeattleLanzhou

SEA - LHW

SEALHW

Seattle/Tacoma Intl

Thu 3/5

10:05 am-5:00 pm

3 stops38h 55m

Lanzhou Arpt

Mon 3/9

11:30 am-9:00 am

1 stop36h 30m

$915

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Washington to Lanzhou

Have a flexible travel schedule? Discover the best time to fly to Lanzhou from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Lanzhou
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Related info for your journey

Find useful and relevant information for your journey from Washington to Lanzhou. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Lanzhou from Washington?

    For a flight from Washington to Lanzhou, you will be flying into Lanzhou Arpt. Lanzhou Arpt (LHW) is just 33.9 mi from the center of the city.

  • How long is the flight from State of Washington to Lanzhou?

    For as low as $915, Hainan Airlines can have you in Lanzhou from State of Washington in 38h 55m. State of Washington and Lanzhou are separated by a distance of 5975 mi.

  • Can I find deals for flights from Washington to Lanzhou that include hotel bookings?

    Yes. In addition to deals on Washington to Lanzhou flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Lanzhou?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Lanzhou.

  • Can I find deals for business class flights from Washington to Lanzhou?

    Yes. Cheapflights offers flight deals from Washington to Lanzhou by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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