SEA - XIY

$469 Find Cheap Flights from Seattle to Xi'an

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Xi'an departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Xi'an

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Xi'an, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Xi'an, as well as popular online travel agencies
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Cheap Flights from Seattle to Xi'an (SEA-XIY)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Xi'an that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Xi'an

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SEA-XIY
5952 mimulti-stop
Multiple Airlines Logo
XIY-SEA
5952 mimulti-stop
Multiple Airlines
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Booking Insights

KAYAK's insights & trends for Seattle to Xi'an flights

Get data-powered insights and trends into flights from Seattle to Xi'an to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Xi'an?

The average price of all round-trip flights from Seattle to Xi'an clicked on KAYAK for each day over the last 12 months.

For Seattle to Xi'an, Tuesday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Xi'an back to Seattle, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Good to know

Cheapest flight$469
Flight from Seattle to Xi'an

When to book flights from Seattle to Xi'an

Are your dates flexible? Find out the best times to travel from Seattle to Xi'an based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Xi'an

  • What is the cheapest flight from Seattle to Xi'an?

    In the last 3 days, the lowest price for a flight from Seattle to Xi'an was $469 for a one-way ticket.

  • Do I need a passport to fly between Seattle and Xi'an?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Seattle and on arrival in Xi'an.

  • Which aircraft models fly most regularly from Seattle to Xi'an?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Xi'an?

    SkyTeam is the only airline alliance operating flights between Seattle and Xi'an.

  • Which is the best airline for flights from Seattle to Xi'an, Korean Air or Singapore Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Xi'an are Korean Air and Singapore Airlines. With an average price for the route of $1,787 and an overall rating of 8.4, Korean Air is the most popular choice. Singapore Airlines is also a great choice for the route, with an average price of $1,206 and an overall rating of 8.1.

  • How does KAYAK find such low prices on flights from Seattle to Xi'an?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Xi'an.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Xi'an?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Xi'an from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Xi'an?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Xi'an with an airline and back to Seattle with another airline. Booking your flights between Seattle and XIY can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Xi'an?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Xi'an from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Seattle to Xi'an

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Xi'an. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Xi'an? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1135 reviews
8.5Boarding
8.2Entertainment
8.1Food
8.3Comfort
8.7Crew
Airline reviews

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

8.0 ExcellentMatt, Aug 2025ATL - EWR
Read more Korean Air reviews

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

Plane took off on time and I had the whole row to myself!

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Headwind delayed our flight which wasn’t the airlines fault

Food from Surabaya was below average but from Singapore is much better

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

The food options and quality could use some more excitement and variety.

Everything you need to know for your flight from Seattle to Xi'an

Information on your arrival and departure airports

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