HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sanya

$1,309+ Cheap flights from Seattle (SEA) to Sanya (SYX)

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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYX
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Sanya with Cheapflights

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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Sanya

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Sanya (SYX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$1,309
(Gurufare)
From Seattle/Tacoma Intl to Sanya Phoenix Intl
Search Deals

Find 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 July 31, 2025.

This Gurufare deal was found by Cheapflights users on 7/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/162:59 pmSEA - SYX
2 stops30h 36mMultiple Airlines
Thu 5/143:35 pmSYX - SEA
3 stops32h 34mMultiple Airlines
Deal found 7/29$1,309
This Gurufare deal was found by Cheapflights users on 7/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:20 amSEA - SYX
2 stops24h 00mChina Eastern
Thu 5/146:40 amSYX - SEA
2 stops25h 15mChina Eastern
Deal found 7/29$1,551
This Air China deal was found by Cheapflights users on 7/29. 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:41 pmSEA - SYX
2 stops32h 44mAir China
Tue 5/1212:55 pmSYX - SEA
2 stops41h 10mAir China
Deal found 7/29$2,843

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Sanya 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 July 31, 2025.
Use the filters below to find and compare flights from Seattle to Sanya that are best for you.

Fly from

Seattle

Fly to

Sanya

Route

Depart

Return

Price

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Sun 11/16

2:59 pm-1:35 pm

2 stops30h 36m

Sanya Phoenix Intl

Thu 5/14

3:35 pm-9:09 am

3 stops32h 34m

$1,309

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Sat 11/15

7:20 am-11:20 pm

2 stops24h 00m

Sanya Phoenix Intl

Wed 5/13

6:40 am-4:55 pm

2 stops25h 15m

$1,551

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Fri 11/14

12:41 pm-1:25 pm

2 stops32h 44m

Sanya Phoenix Intl

Tue 5/12

12:55 pm-3:05 pm

2 stops41h 10m

$2,843

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

Reviews of airlines servicing Sanya

Get insights into the airlines that provide service to Sanya. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sanya. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Air China and China Eastern from Seattle to Sanya. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air China
7.3
Good
93 reviews

Comfort

7.1

Overall

7.3

Boarding

7.8

Crew

7.9

Entertainment

6.2

Food

7.1

Reviews

1 / 1
10.0
Excellent

Vanina,Jun 2025

LHR - PEK

Very good but something happened with my flight # my booking had a 22.40 departure only to find out when check in that I was booked on the 20.40 flight so I had to run through a short connection. Never k we why this happened.
Air China
7.3
Good
93 reviews
Air China
7.3
Good
93 reviews

Comfort

7.1

Overall

7.3

Boarding

7.8

Crew

7.9

Entertainment

6.2

Food

7.1

Reviews

1 / 1
10.0
Excellent

Vanina,Jun 2025

LHR - PEK

Very good but something happened with my flight # my booking had a 22.40 departure only to find out when check in that I was booked on the 20.40 flight so I had to run through a short connection. Never k we why this happened.
China Eastern
7.2
Good
158 reviews
Air China
7.3
Good
93 reviews

Comfort

7.1

Overall

7.3

Boarding

7.8

Crew

7.9

Entertainment

6.2

Food

7.1

Reviews

1 / 1
10.0
Excellent

Vanina,Jun 2025

LHR - PEK

Very good but something happened with my flight # my booking had a 22.40 departure only to find out when check in that I was booked on the 20.40 flight so I had to run through a short connection. Never k we why this happened.

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.

  • 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.

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.
Portland to Sanya flights
Portland to Haikou flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.