$324 Cheap Flights from Xi'an (XIY) to Seattle (SEA)

View $324 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Xi'an (XIY-Xianyang Intl.) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Xi'an to Seattle (XIY-SEA)

Prices were available within the past 7 days and start at $324 for one-way flights and $691 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Nov 5 - Wed, Nov 12
XIY
Xi'an
SEA
Seattle
$691 Roundtrip, found 5 days ago
$691
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Nov 5 from Xi'an to Seattle, returning Wed, Nov 12, priced at $691 found 5 days ago
Air China
Wed, Nov 5 - Wed, Nov 12
XIY
Xi'an
SEA
Seattle
$693 Roundtrip, found 5 days ago
$693
Roundtrip
found 5 days ago
Select Air China flight, departing Wed, Nov 5 from Xi'an to Seattle, returning Wed, Nov 12, priced at $693 found 5 days ago
Air Canada
Tue, Nov 18 - Mon, Dec 1
XIY
Xi'an
SEA
Seattle
$774 Roundtrip, found 11 hours ago
$774
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Tue, Nov 18 from Xi'an to Seattle, returning Mon, Dec 1, priced at $774 found 11 hours ago
Air China
Tue, Nov 18 - Mon, Dec 1
XIY
Xi'an
SEA
Seattle
$777 Roundtrip, found 11 hours ago
$777
Roundtrip
found 11 hours ago
Select Air China flight, departing Tue, Nov 18 from Xi'an to Seattle, returning Mon, Dec 1, priced at $777 found 11 hours ago
Air Canada
Wed, Nov 5 - Wed, Nov 12
XIY
Xi'an
SEA
Seattle
$815 Roundtrip, found 5 days ago
$815
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Nov 5 from Xi'an to Seattle, returning Wed, Nov 12, priced at $815 found 5 days ago
Air China
Wed, Nov 5 - Wed, Nov 12
XIY
Xi'an
SEA
Seattle
$817 Roundtrip, found 5 days ago
$817
Roundtrip
found 5 days ago
Select Air China flight, departing Wed, Nov 5 from Xi'an to Seattle, returning Wed, Nov 12, priced at $817 found 5 days ago
Hainan Airlines
Mon, Feb 16 - Wed, Feb 25
XIY
Xi'an
SEA
Seattle
$821 Roundtrip, found 3 days ago
$821
Roundtrip
found 3 days ago
Select Hainan Airlines flight, departing Mon, Feb 16 from Xi'an to Seattle, returning Wed, Feb 25, priced at $821 found 3 days ago
Air China
Tue, Nov 18 - Mon, Dec 1
XIY
Xi'an
SEA
Seattle
$834 Roundtrip, found 11 hours ago
$834
Roundtrip
found 11 hours ago
Select Air China flight, departing Tue, Nov 18 from Xi'an to Seattle, returning Mon, Dec 1, priced at $834 found 11 hours ago
Asiana Airlines
Mon, Oct 20 - Sat, Oct 25
XIY
Xi'an
SEA
Seattle
$1,018 Roundtrip, found 1 day ago
$1,018
Roundtrip
found 1 day ago
Select Asiana Airlines flight, departing Mon, Oct 20 from Xi'an to Seattle, returning Sat, Oct 25, priced at $1,018 found 1 day ago
Korean Air
Tue, Nov 18 - Mon, Dec 1
XIY
Xi'an
SEA
Seattle
$1,114 Roundtrip, found 11 hours ago
$1,114
Roundtrip
found 11 hours ago
Select Korean Air flight, departing Tue, Nov 18 from Xi'an to Seattle, returning Mon, Dec 1, priced at $1,114 found 11 hours ago

Find the cheapest month to fly from Xi'an (XIY) to Seattle (SEA)

September is typically the cheapest month to fly

From $732 - $1,566 per traveler.

Frequently asked questions

How much does a flight from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA) cost?
Snag a cheap one-way flight from $324 or cheap return flight from $691 from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from XIY to SEA is November, when there's less demand. Off-peak months are generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest XIY to SEA flight.
How many flights per day from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA)?
You'll need to hop on a flight with a layover when traveling from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from XIY to SEA?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA)?
Opt for a flight from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your ticket from XIY to SEA right before your trip is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a XIY to SEA flight and hotel package?
You'll typically save money by securing a XIY to SEA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal flights and accommodations, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Xianyang Intl. Airport (XIY) to Seattle - Tacoma Intl. Airport (SEA)?
Usually, it's possible to reschedule or cancel your XIY to SEA flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Xianyang Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Cathay Pacific, Hainan Airlines, Korean Air, Singapore Airlines, United
Roundtrip price
$690
Distance
5956 mi

Book with confidence

Xi'an to Seattle Flights

The cheapest times to fly from Xi'an to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Xi'an to Seattle are during the month of November. You can find some of the cheapest flights from Xi'an to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Xi'an to Seattle

Sunday is one of the best days to book for cheap flights from Xi'an to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Xi'an to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Xi'an to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $324 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Xi'an to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Xi'an to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Xi'an to Seattle Flights

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*Available to One Key members.