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Cheap flights from Seattle to Xi'an from $447

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 Xi'an departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Xi'an (SEA-XIY)

Cheap round-trip flights

Hainan Airlines Logo
10:00 am - 12:15 amSEA-XIY
22h 15m1 stop
Hainan Airlines Logo
6:30 pm - 8:00 amXIY-SEA
29h 30m1 stop
$818Hainan Airlines
Find Deal
Sat, Nov 22 - Mon, Dec 1
Hainan Airlines Logo
10:00 am - 12:15 amSEA-XIY
22h 15m1 stop
Hainan Airlines Logo
6:30 pm - 8:00 amXIY-SEA
29h 30m1 stop
$885Hainan Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
Cathay Pacific Logo
9:24 pm - 2:35 pmSEA-XIY
49h 11m2 stops
Cathay Pacific Logo
3:50 pm - 6:28 pmXIY-SEA
42h 38m2 stops
$964Cathay Pacific
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Sun, Nov 23 - Mon, Dec 1
Air China Logo
7:00 am - 4:55 pmSEA-XIY
41h 55m2 stops
Air China Logo
2:00 pm - 3:29 pmXIY-SEA
41h 29m2 stops
$983Air China
Find Deal
Wed, Nov 26 - Tue, Dec 2
Cathay Pacific Logo
5:59 pm - 2:35 pmSEA-XIY
28h 36m2 stops
Cathay Pacific Logo
3:50 pm - 2:24 pmXIY-SEA
38h 34m2 stops
$986Cathay Pacific
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Tue, Nov 25 - Tue, Dec 2
Logo
9:24 pm - 9:45 amSEA-XIY
44h 21m2 stops
Logo
3:30 pm - 8:00 amXIY-SEA
32h 30m1 stop
$1,002
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Sun, Nov 23 - Mon, Dec 1
Logo
9:24 pm - 9:45 amSEA-XIY
44h 21m2 stops
Logo
6:30 pm - 8:00 amXIY-SEA
29h 30m1 stop
$1,003
Find Deal
Sun, Nov 23 - Mon, Dec 1
Air China Logo
5:30 am - 10:25 pmSEA-XIY
24h 55m2 stops
Air China Logo
6:10 pm - 3:29 pmXIY-SEA
37h 19m2 stops
$1,008Air China
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Sat, Nov 22 - Tue, Dec 2
Singapore Airlines Logo
8:45 am - 12:25 amSEA-XIY
47h 40m1 stop
Singapore Airlines Logo
1:35 am - 7:10 amXIY-SEA
45h 35m1 stop
$1,214Singapore Airlines
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Sun, Nov 23 - Sun, Nov 30
Singapore Airlines Logo
8:45 am - 12:25 amSEA-XIY
47h 40m1 stop
Singapore Airlines Logo
1:35 am - 7:10 amXIY-SEA
45h 35m1 stop
$1,247Singapore Airlines
Find Deal
Sun, Nov 23 - Sun, Nov 30

Hainan Airlines flights from Seattle to Xi'an

Our best Hainan Airlines deals on Seattle to Xi'an flight tickets
Hainan Airlines
Nov 22
SEA10:00 amSeattle/Tacoma Intl
22h 15m
1 stop
XIY12:15 amXi'an Xianyang
Dec 1
XIY6:30 pmXi'an Xianyang
29h 30m
1 stop
SEA8:00 amSeattle/Tacoma Intl
$818
Find similar
Hainan Airlines
Nov 25
SEA10:00 amSeattle/Tacoma Intl
22h 15m
1 stop
XIY12:15 amXi'an Xianyang
Dec 1
XIY6:30 pmXi'an Xianyang
29h 30m
1 stop
SEA8:00 amSeattle/Tacoma Intl
$885
Find similar
Hainan Airlines
Nov 20
SEA10:05 amSeattle/Tacoma Intl
34h 40m
2 stops
XIY12:45 pmXi'an Xianyang
Dec 1
XIY6:30 pmXi'an Xianyang
29h 30m
1 stop
SEA8:00 amSeattle/Tacoma Intl
$995
Find similar

Cathay Pacific flights from Seattle to Xi'an

Our best Cathay Pacific deals on Seattle to Xi'an flight tickets
Cathay Pacific
Nov 23
SEA9:24 pmSeattle/Tacoma Intl
49h 11m
2 stops
XIY2:35 pmXi'an Xianyang
Dec 1
XIY3:50 pmXi'an Xianyang
42h 38m
2 stops
SEA6:28 pmSeattle/Tacoma Intl
$964
Find similar
Cathay Pacific
Nov 25
SEA5:59 pmSeattle/Tacoma Intl
28h 36m
2 stops
XIY2:35 pmXi'an Xianyang
Dec 2
XIY3:50 pmXi'an Xianyang
38h 34m
2 stops
SEA2:24 pmSeattle/Tacoma Intl
$986
Find similar
Cathay Pacific
Nov 24
SEA5:59 pmSeattle/Tacoma Intl
28h 36m
2 stops
XIY2:35 pmXi'an Xianyang
Dec 1
XIY3:50 pmXi'an Xianyang
38h 34m
2 stops
SEA2:24 pmSeattle/Tacoma Intl
$1,001
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Xi'an 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 August 28, 2025.
Use the filters below to find and compare flights from Seattle to Xi'an that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Sat 11/22

10:00 am-12:15 am

1 stop22h 15m

Xi'an Xianyang

Mon 12/1

6:30 pm-8:00 am

1 stop29h 30m

$818

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Tue 11/25

10:00 am-12:15 am

1 stop22h 15m

Xi'an Xianyang

Mon 12/1

6:30 pm-8:00 am

1 stop29h 30m

$885

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Sun 11/23

9:24 pm-2:35 pm

2 stops49h 11m

Xi'an Xianyang

Mon 12/1

3:50 pm-6:28 pm

2 stops42h 38m

$964

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Wed 11/26

7:00 am-4:55 pm

2 stops41h 55m

Xi'an Xianyang

Tue 12/2

2:00 pm-3:29 pm

2 stops41h 29m

$983

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Tue 11/25

5:59 pm-2:35 pm

2 stops28h 36m

Xi'an Xianyang

Tue 12/2

3:50 pm-2:24 pm

2 stops38h 34m

$986

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Sun 11/23

9:24 pm-9:45 am

2 stops44h 21m

Xi'an Xianyang

Mon 12/1

3:30 pm-8:00 am

1 stop32h 30m

$1,002

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Sun 11/23

9:24 pm-9:45 am

2 stops44h 21m

Xi'an Xianyang

Mon 12/1

6:30 pm-8:00 am

1 stop29h 30m

$1,003

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Sat 11/22

5:30 am-10:25 pm

2 stops24h 55m

Xi'an Xianyang

Tue 12/2

6:10 pm-3:29 pm

2 stops37h 19m

$1,008

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Sun 11/23

8:45 am-12:25 am

1 stop47h 40m

Xi'an Xianyang

Sun 11/30

1:35 am-7:10 am

1 stop45h 35m

$1,214

SeattleXi'an

SEA - XIY

SEAXIY

Seattle/Tacoma Intl

Sun 11/23

8:45 am-12:25 am

1 stop47h 40m

Xi'an Xianyang

Sun 11/30

1:35 am-7:10 am

1 stop45h 35m

$1,247

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Seattle to Xi'an

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Xi'an?

The cheapest day to depart from Seattle to Xi'an is on a Tuesday when prices can be found for as low as $1,170. On the other hand, Wednesday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,584.

What is the cheapest time of day to depart on your flight to Xi'an?

At noon is the cheapest time of day to fly from Seattle to Xi'an when you can find flight prices for as low as $1,197. Flying to Xi'an at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,542 on average. Flights to Xi'an from Seattle in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Seattle to Xi'an

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Xi'an according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Xi'an (SEA to XIY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Xi'an

Direct flights

None
There are no direct flights from Seattle to Xi'an. There are no popular flight routes from Seattle to Xi'an.
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  • How far is Seattle/Tacoma Intl to Xi'an Xianyang by plane?

    A flight from Seattle/Tacoma Intl to Xi'an Xianyang will travel around 5948.1 mi. Typically, this will take 22h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Xi'an Xianyang Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Xi'an Xianyang Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Xi'an Xianyang Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Xi'an Xianyang 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 Seattle/Tacoma Intl Airport to Xi'an Xianyang Airport.

  • What documentation or ID do you need to fly to Xi'an Xianyang Airport?

    The required travel and health documents for your Xi'an Xianyang Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Xi'an Xianyang Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Seattle to Xi'an?

Best airlines flying from Seattle to Xi'an

Compare and see reviews for airlines that fly from Seattle to Xi'an with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $994Free CancellationRating
8.1
1,352 reviews
Search Singapore Airlines flights
Korean AirPriceFrom $1,499Free CancellationRating
8.4
1,133 reviews
Search Korean Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Xi'an?

It is quick and easy to find Seattle to Xi'an flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Xi'an that suits you.

Can I find flights from Seattle to Xi'an with flexible booking policies on momondo?

momondo does allow users to show only those flights to Xi'an 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 Xi'an?

momondo provides multiple filters to help you find the best flight to Xi'an from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Xi'an right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Xi'an, momondo offers a useful price alert feature which will track prices for flights to Xi'an from Seattle and alert you when they change.

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