When did momondo last update prices for flights from Washington to Hainan?

Prices for flights from Washington to Hainan are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Hainan?

There is 1 operator available for flights from Washington to Hainan as of September 2026.

How old do you have to be to fly from Washington to Hainan?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Hainan.

What documentation or ID do you need to fly to Hainan?

The travel and health documents you'll need for your trip to Hainan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Hainan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$388 Cheap Flights from Washington to Hainan in 2026/27

Find the cheapest flights from Washington to Hainan

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:45 am - 3:40 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

36h 55m1 stop Hong Kong Intl

4:45 pm - 8:45 amHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

32h 00m1 stop Hong Kong Intl

$758Cathay Pacific

Tue, Oct 13 - Tue, Nov 3

11:33 am - 3:40 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

37h 07m2 stops Los Angeles Hong Kong Intl

4:45 pm - 8:45 amHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

32h 00m1 stop Hong Kong Intl

$821Multiple Airlines

Wed, Oct 14 - Tue, Nov 3

3:20 pm - 3:40 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

33h 20m2 stops Los Angeles Hong Kong Intl

4:45 pm - 8:45 amHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

32h 00m1 stop Hong Kong Intl

$821Multiple Airlines

Tue, Oct 13 - Tue, Nov 3

11:45 am - 3:40 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

36h 55m1 stop Hong Kong Intl

4:45 pm - 8:45 amHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

32h 00m1 stop Hong Kong Intl

$848Cathay Pacific

Wed, Oct 14 - Tue, Nov 3

11:33 am - 3:40 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

37h 07m2 stops Los Angeles Hong Kong Intl

4:45 pm - 6:41 pmHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

41h 56m2 stops Hong Kong Intl Vancouver Intl

$851Multiple Airlines

Wed, Oct 14 - Tue, Nov 3

2:19 pm - 3:40 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

34h 21m2 stops Los Angeles Hong Kong Intl

4:45 pm - 6:41 pmHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

41h 56m2 stops Hong Kong Intl Vancouver Intl

$851Multiple Airlines

Tue, Oct 13 - Tue, Nov 3

7:58 pm - 11:30 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

35h 32m2 stops Los Angeles Shanghai Pu Dong

3:00 pm - 2:28 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

39h 28m2 stops Shanghai Pu Dong San Francisco

$876Multiple Airlines

Sun, Nov 8 - Sun, Nov 15

1:15 am - 3:40 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

23h 25m2 stops Taipei City Taiwan Taoyuan Intl Hong Kong Intl

9:10 am - 6:32 pmHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

24h 22m2 stops Beijing Capital Vancouver Intl

$1,086Multiple Airlines

Thu, Oct 8 - Thu, Oct 15

10:05 am - 9:45 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

19h 40m1 stop Chongqing Jiangbei Intl

8:00 am - 8:20 amHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

16h 20m1 stop Beijing Capital

$2,580Hainan Airlines

Thu, Dec 17 - Tue, Dec 29

10:05 am - 9:45 pmSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

19h 40m1 stop Chongqing Jiangbei Intl

7:00 pm - 8:20 amHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

29h 20m1 stop Beijing Capital

$2,580Hainan Airlines

Thu, Dec 17 - Mon, Dec 28

Cheap last minute flights

Enter your travel dates to find the best prices.

1:30 am - 12:45 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

20h 15m2 stops Taipei City Taiwan Taoyuan Intl Hong Kong Intl

1:45 pm - 6:40 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

19h 55m2 stops Hong Kong Intl Taipei City Taiwan Taoyuan Intl

$1,126Multiple Airlines

Sun, Sep 27 - Tue, Oct 6

11:55 am - 9:20 amSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

30h 25m1 stop Chongqing Jiangbei Intl

1:45 pm - 8:05 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

21h 20m2 stops Hong Kong Intl Manila Ninoy Aquino Intl

$1,159Multiple Airlines

Thu, Oct 1 - Thu, Oct 8

11:45 am - 8:30 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

17h 45m1 stop Hong Kong Intl

9:45 pm - 1:40 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

30h 55m2 stops Hong Kong Intl Incheon Intl

$1,193Multiple Airlines

Wed, Sep 30 - Thu, Oct 8

1:30 am - 12:45 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

20h 15m2 stops Taipei City Taiwan Taoyuan Intl Hong Kong Intl

1:45 pm - 7:20 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

20h 35m2 stops Hong Kong Intl Taipei City Taiwan Taoyuan Intl

$1,199Multiple Airlines

Sun, Sep 27 - Wed, Oct 7

11:45 am - 8:30 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

17h 45m1 stop Hong Kong Intl

10:25 pm - 9:00 amSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

25h 35m2 stops Guangzhou Baiyun Beijing Capital

$1,213Multiple Airlines

Wed, Sep 30 - Fri, Oct 2

7:18 am - 1:10 amSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

26h 52m2 stops San Francisco Shanghai Pu Dong

4:40 pm - 6:48 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

41h 08m2 stops Shanghai Hongqiao Intl Los Angeles

$1,218Multiple Airlines

Mon, Sep 28 - Mon, Oct 5

1:30 am - 12:45 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

20h 15m2 stops Taipei City Taiwan Taoyuan Intl Hong Kong Intl

1:45 pm - 6:40 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

19h 55m2 stops Hong Kong Intl Taipei City Taiwan Taoyuan Intl

$1,235Multiple Airlines

Mon, Sep 28 - Tue, Oct 6

4:25 pm - 11:55 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

40h 30m2 stops Doha Hamad Intl Shanghai Pu Dong

4:00 pm - 2:25 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

37h 25m2 stops Beijing Capital Doha Hamad Intl

$1,236Multiple Airlines

Tue, Sep 29 - Mon, Oct 5

11:45 am - 12:35 amSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

21h 50m2 stops Hong Kong Intl Guangzhou Baiyun

7:25 am - 9:55 amSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

17h 30m1 stop Chongqing Jiangbei Intl

$1,243Multiple Airlines

Mon, Sep 28 - Thu, Oct 8

12:10 am - 7:25 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

28h 15m2 stops Incheon Intl Beijing Capital

7:25 am - 9:55 amSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

17h 30m1 stop Chongqing Jiangbei Intl

$1,248Multiple Airlines

Thu, Oct 1 - Thu, Oct 8

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Cathay Pacific flights from State of Washington to Hainan

Our best Cathay Pacific deals on State of Washington to Hainan flight tickets

Cathay Pacific

Oct 13

SEA11:45 amSeattle/Tacoma Intl

36h 55m

1 stop

HAK3:40 pmHaikou Meilan Intl

Nov 3

HAK4:45 pmHaikou Meilan Intl

32h 00m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$758

Cathay Pacific

Oct 14

SEA11:45 amSeattle/Tacoma Intl

36h 55m

1 stop

HAK3:40 pmHaikou Meilan Intl

Nov 3

HAK4:45 pmHaikou Meilan Intl

32h 00m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$848

Cathay Pacific

Sep 30

SEA11:45 amSeattle/Tacoma Intl

31h 25m

1 stop

SYX10:10 amSanya Phoenix Intl

Oct 4

SYX9:45 pmSanya Phoenix Intl

27h 20m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$1,660

Hainan Airlines flights from State of Washington to Hainan

Our best Hainan Airlines deals on State of Washington to Hainan flight tickets

Hainan Airlines

Oct 1

SEA11:55 amSeattle/Tacoma Intl

31h 55m

1 stop

SYX10:50 amSanya Phoenix Intl

Oct 7

SYX8:40 pmSanya Phoenix Intl

28h 15m

1 stop

SEA9:55 amSeattle/Tacoma Intl

$1,252

Hainan Airlines

Sep 29

SEA11:00 amSeattle/Tacoma Intl

20h 25m

1 stop

SYX10:25 pmSanya Phoenix Intl

Oct 7

SYX8:40 pmSanya Phoenix Intl

28h 15m

1 stop

SEA9:55 amSeattle/Tacoma Intl

$1,289

Hainan Airlines

Sep 29

SEA11:00 amSeattle/Tacoma Intl

20h 25m

1 stop

SYX10:25 pmSanya Phoenix Intl

Oct 2

SYX6:50 pmSanya Phoenix Intl

29h 10m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$1,354

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Tue 10/13

11:45 am-3:40 pm

1 stop36h 55m

Haikou Meilan Intl

Tue 11/3

4:45 pm-8:45 am

1 stop32h 00m

$758

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Wed 10/14

11:33 am-3:40 pm

2 stops37h 07m

Haikou Meilan Intl

Tue 11/3

4:45 pm-8:45 am

1 stop32h 00m

$821

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Tue 10/13

3:20 pm-3:40 pm

2 stops33h 20m

Haikou Meilan Intl

Tue 11/3

4:45 pm-8:45 am

1 stop32h 00m

$821

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Wed 10/14

11:45 am-3:40 pm

1 stop36h 55m

Haikou Meilan Intl

Tue 11/3

4:45 pm-8:45 am

1 stop32h 00m

$848

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Wed 10/14

11:33 am-3:40 pm

2 stops37h 07m

Haikou Meilan Intl

Tue 11/3

4:45 pm-6:41 pm

2 stops41h 56m

$851

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Tue 10/13

2:19 pm-3:40 pm

2 stops34h 21m

Haikou Meilan Intl

Tue 11/3

4:45 pm-6:41 pm

2 stops41h 56m

$851

SeattleSanya

SEA Seattle/Tacoma Intl - SYX Sanya Phoenix Intl

SEASYX

Seattle/Tacoma Intl

Sun 11/8

7:58 pm-11:30 pm

2 stops35h 32m

Sanya Phoenix Intl

Sun 11/15

3:00 pm-2:28 pm

2 stops39h 28m

$876

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Thu 10/8

1:15 am-3:40 pm

2 stops23h 25m

Haikou Meilan Intl

Thu 10/15

9:10 am-6:32 pm

2 stops24h 22m

$1,086

Quickest round-trip

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Thu 12/17

10:05 am-9:45 pm

1 stop19h 40m

Haikou Meilan Intl

Tue 12/29

8:00 am-8:20 am

1 stop16h 20m

$2,580

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Thu 12/17

10:05 am-9:45 pm

1 stop19h 40m

Haikou Meilan Intl

Mon 12/28

7:00 pm-8:20 am

1 stop29h 20m

$2,580

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Hainan

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 airline that flies from Washington to Hainan?

Cathay Pacific is the most popular carrier operating from Washington to Hainan

Cheap State of Washington to Hainan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Hainan

Best Price Found	$388
Fastest flight time	30h 22m
Direct flights	None

The best one-way flight to Hainan from State of Washington in the past 72 hours is $388. The best round-trip flight deal from State of Washington to Hainan found on momondo in the last 72 hours is $758.

The fastest flight from State of Washington to Hainan takes 30h 22m

There are no direct flights from State of Washington to Hainan. There are no popular flight routes from State of Washington to Hainan.

Search flight deals

Frequently asked questions about flying from Washington to Hainan

When did momondo last update prices for flights from Washington to Hainan?
Prices for flights from Washington to Hainan are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Hainan?
There is 1 operator available for flights from Washington to Hainan as of September 2026.
How old do you have to be to fly from Washington to Hainan?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Hainan.
What documentation or ID do you need to fly to Hainan?
The travel and health documents you'll need for your trip to Hainan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Hainan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Hainan

Compare and see reviews for airlines that fly from State of Washington to Hainan with momondo

Airline	Rating	Free Cancellation	Price
Hainan Airlines	PriceFrom $964	Free Cancellation	Rating 8.3 71 reviews		Search Hainan Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Hainan?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Hainan. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Hainan with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to Hainan flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to Hainan?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Hainan from Washington.

I’m not ready to book a flight from Washington to Hainan right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington to Hainan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Hainan and let you know when they change.