How long is the flight from Seattle to Sanya?

A quick flight from Seattle to Sanya can take about 42h 05m. China Eastern provides one of the quickest options available for as low as $2,244. The distance between Seattle and Sanya is about 6875 mi.

What is the cheapest time of day to fly from SEA to SYX?

When flying from Seattle to Sanya, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Seattle-Sanya flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Sanya flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Sanya flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Sanya flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Sanya flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Seattle to Sanya that include hotel bookings?

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

How can I find direct flights from Seattle to Sanya?

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

Can I find deals for business class flights from Seattle to Sanya?

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

$426+ Flights from Seattle to Sanya

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheap flight deals from Seattle to Sanya

Cheapest flights from Seattle to Sanya
Explore the most affordable flight options available from Seattle to Sanya. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Sat 4/47:15 am

SEA

SYX

2 stops39h 20m

China Eastern

Wed 4/86:40 am

SYX

SEA

2 stops26h 43m

China Eastern

Deal found 1/26

$2,244

Best flights from Seattle to Sanya
Discover carefully curated flight deals from Seattle to Sanya that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 28, 2026.

Sat 4/47:15 am

SEA

SYX

2 stops42h 05m

China Eastern

Wed 4/86:40 am

SYX

SEA

2 stops26h 43m

China Eastern

Deal found 1/25

$2,244

One-way flights from Seattle to Sanya
Search for one-way flight options from Seattle to Sanya. Find affordable one-way fares based on user searches. Data last updated January 28, 2026.

Wed 2/183:45 pm

SEA

SYX

2 stops26h 45m

Multiple Airlines

Deal found 1/27

$426

Tue 2/179:30 pm

SEA

SYX

2 stops30h 25m

Multiple Airlines

Deal found 1/27

$445

Mon 2/27:15 am

SEA

SYX

2 stops24h 15m

China Eastern

Deal found 1/27

$483

Thu 2/1910:05 am

SEA

SYX

2 stops43h 00m

Multiple Airlines

Deal found 1/27

$517

Sun 2/1512:10 am

SEA

SYX

2 stops28h 55m

Multiple Airlines

Deal found 1/27

$568

Fri 2/2011:08 pm

SEA

SYX

2 stops53h 57m

Multiple Airlines

Deal found 1/27

$598

Tue 2/33:45 pm

SEA

SYX

2 stops37h 20m

Multiple Airlines

Deal found 1/27

$603

Tue 2/1710:00 am

SEA

SYX

1 stop35h 10m

Hainan Airlines

Deal found 1/27

$668

Mon 2/23:45 pm

SEA

SYX

3 stops49h 55m

Multiple Airlines

Deal found 1/27

$676

Wed 2/41:40 pm

SEA

SYX

3 stops38h 20m

Multiple Airlines

Deal found 1/27

$678

Find flight deals from Seattle to Sanya

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$2,244 (China Eastern)
One-way from	$426 (Trip.com)

Provider with most accurate pricing for Seattle/Tacoma Intl-Sanya Phoenix Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sanya Phoenix Intl flights.

Search Deals

From Seattle/Tacoma Intl to Sanya Phoenix Intl

Search Deals

One-way flight from Seattle/Tacoma Intl to Sanya Phoenix Intl

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Sat 4/4

7:15 am-4:20 pm

2 stops42h 05m

Sanya Phoenix Intl

Wed 4/8

6:40 am-6:23 pm

2 stops26h 43m

$2,244

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Wed 2/18

3:45 pm-10:30 am

2 stops26h 45m

$426

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Tue 2/17

9:30 pm-7:55 pm

2 stops30h 25m

$445

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Mon 2/2

7:15 am-11:30 pm

2 stops24h 15m

$483

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 2/19

10:05 am-1:55 pm

1 stop35h 50m

$568

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Sun 2/15

12:10 am-9:05 pm

2 stops28h 55m

$568

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Tue 2/17

10:00 am-1:10 pm

1 stop35h 10m

$668

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Mon 2/2

3:45 pm-9:40 am

3 stops49h 55m

$676

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Wed 2/4

1:40 pm-8:00 pm

3 stops38h 20m

$678

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Tue 2/3

10:00 am-12:15 pm

1 stop34h 15m

$773

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 11 results

Compare providers for flights from Seattle to Sanya

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Sanya in January.

Provider	Price Accuracy	Trust Score*
AranGrant	Price Accuracy2 stars	Trust Score*2 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Seattle-Sanya flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Sanya flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Sanya flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seattle-Sanya flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Sanya flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Sanya

Have a flexible travel schedule? Discover the best time to fly to Sanya from Seattle 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.

Related info for your journey

How long is the flight from Seattle to Sanya?
A quick flight from Seattle to Sanya can take about 42h 05m. China Eastern provides one of the quickest options available for as low as $2,244. The distance between Seattle and Sanya is about 6875 mi.
Can I find deals for flights from Seattle to Sanya that include hotel bookings?
Yes. In addition to deals on Seattle to Sanya flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Sanya?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Sanya.
Can I find deals for business class flights from Seattle to Sanya?
Yes. Cheapflights offers flight deals from Seattle to Sanya 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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$426+ Cheap flights from Seattle (SEA) to Sanya (SYX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Sanya with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Sanya

Cheapest flights from Seattle to SanyaExplore the most affordable flight options available from Seattle to Sanya. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Explore the most affordable flight options available from Seattle to Sanya. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

Find flight deals from Seattle to Sanya

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Sanya that are best for you.

Compare providers for flights from Seattle to Sanya

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Sanya in January.

Best time to book a flight from Seattle to Sanya

Have a flexible travel schedule? Discover the best time to fly to Sanya from Seattle with our price prediction graph.

Related info for your journey

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

How long is the flight from Seattle to Sanya?

Can I find deals for flights from Seattle to Sanya that include hotel bookings?

How can I find direct flights from Seattle to Sanya?

Can I find deals for business class flights from Seattle to Sanya?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Sanya

See prices for flight routes from nearby airports that may be better suited for you.

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Book with Flexibility

Travel Smart

Cheapest flights from Seattle to Sanya
Explore the most affordable flight options available from Seattle to Sanya. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.