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 June 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.

$583 Cheap Flights from Washington to Hainan in 2026

Find the cheapest flights from Washington to Hainan

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:10 am - 12:45 pm

SEA

SYX

19h 35m

2 stops

1:45 pm - 7:10 pm

SYX

SEA

20h 25m

2 stops

$1,469Multiple Airlines

Wed, Aug 5 - Thu, Aug 13

12:20 pm - 10:50 am

SEA

SYX

31h 30m

1 stop

11:10 pm - 9:00 am

SYX

SEA

48h 50m

2 stops

$1,484Hainan Airlines

Thu, Aug 6 - Thu, Aug 13

12:20 pm - 9:15 pm

SEA

SYX

41h 55m

3 stops

11:10 pm - 9:00 am

SYX

SEA

48h 50m

2 stops

$1,721Hainan Airlines

Thu, Aug 6 - Thu, Aug 13

12:20 pm - 10:50 am

SEA

SYX

31h 30m

1 stop

7:25 am - 10:20 am

SYX

SEA

17h 55m

1 stop

$1,787Multiple Airlines

Thu, Aug 6 - Thu, Aug 13

9:35 pm - 3:40 pm

PDX

HAK

27h 05m

2 stops

4:50 pm - 1:51 pm

HAK

PDX

36h 01m

2 stops

$1,812Cathay Pacific

Fri, Sep 4 - Tue, Sep 8

7:00 am - 11:30 pm

SEA

SYX

24h 30m

2 stops

6:30 am - 4:57 pm

SYX

SEA

26h 27m

2 stops

$1,893Multiple Airlines

Wed, Dec 16 - Tue, Dec 29

9:35 pm - 3:40 pm

PDX

HAK

27h 05m

2 stops

4:50 pm - 1:51 pm

HAK

PDX

36h 01m

2 stops

$1,912Cathay Pacific

Fri, Sep 4 - Tue, Sep 8

10:50 am - 9:05 pm

SEA

SYX

18h 15m

1 stop

11:30 am - 6:10 pm

SYX

SEA

22h 40m

2 stops

$1,923Multiple Airlines

Mon, Dec 14 - Mon, Dec 28

6:20 am - 12:20 pm

PDX

HAK

39h 00m

2 stops

11:50 am - 4:33 pm

HAK

PDX

43h 43m

2 stops

$4,261China Eastern

Tue, Sep 1 - Sat, Sep 5

6:20 am - 5:50 pm

PDX

HAK

44h 30m

2 stops

1:35 pm - 4:33 pm

HAK

PDX

41h 58m

2 stops

$4,329China Eastern

Tue, Sep 1 - Sat, Sep 5

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China Eastern flights from State of Washington to Hainan

Our best China Eastern deals on State of Washington to Hainan flight tickets

China Eastern

Sep 1

PDX6:20 amPortland

39h 00m

2 stops

HAK12:20 pmHaikou Meilan Intl

Sep 5

HAK11:50 amHaikou Meilan Intl

43h 43m

2 stops

PDX4:33 pmPortland

$4,261

China Eastern

Sep 1

PDX6:20 amPortland

44h 30m

2 stops

HAK5:50 pmHaikou Meilan Intl

Sep 5

HAK1:35 pmHaikou Meilan Intl

41h 58m

2 stops

PDX4:33 pmPortland

$4,329

Cathay Pacific flights from State of Washington to Hainan

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

Cathay Pacific

Sep 4

PDX9:35 pmPortland

27h 05m

2 stops

HAK3:40 pmHaikou Meilan Intl

Sep 8

HAK4:50 pmHaikou Meilan Intl

36h 01m

2 stops

PDX1:51 pmPortland

$1,812

Cathay Pacific

Sep 4

PDX9:35 pmPortland

27h 05m

2 stops

HAK3:40 pmHaikou Meilan Intl

Sep 8

HAK4:50 pmHaikou Meilan Intl

36h 01m

2 stops

PDX1:51 pmPortland

$1,912

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Wed 8/5

2:10 am-12:45 pm

2 stops19h 35m

Sanya Phoenix Intl

Thu 8/13

1:45 pm-7:10 pm

2 stops20h 25m

$1,469

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 8/6

12:20 pm-10:50 am

1 stop31h 30m

Sanya Phoenix Intl

Thu 8/13

11:10 pm-9:00 am

2 stops48h 50m

$1,484

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 8/6

12:20 pm-9:15 pm

3 stops41h 55m

Sanya Phoenix Intl

Thu 8/13

11:10 pm-9:00 am

2 stops48h 50m

$1,721

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 8/6

12:20 pm-10:50 am

1 stop31h 30m

Sanya Phoenix Intl

Thu 8/13

7:25 am-10:20 am

1 stop17h 55m

$1,787

PortlandHaikou

PDX - HAK

PDXHAK

Portland

Fri 9/4

9:35 pm-3:40 pm

2 stops27h 05m

Haikou Meilan Intl

Tue 9/8

4:50 pm-1:51 pm

2 stops36h 01m

$1,812

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Wed 12/16

7:00 am-11:30 pm

2 stops24h 30m

Sanya Phoenix Intl

Tue 12/29

6:30 am-4:57 pm

2 stops26h 27m

$1,893

PortlandHaikou

PDX - HAK

PDXHAK

Portland

Fri 9/4

9:35 pm-3:40 pm

2 stops27h 05m

Haikou Meilan Intl

Tue 9/8

4:50 pm-1:51 pm

2 stops36h 01m

$1,912

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Mon 12/14

10:50 am-9:05 pm

1 stop18h 15m

Sanya Phoenix Intl

Mon 12/28

11:30 am-6:10 pm

2 stops22h 40m

$1,923

PortlandHaikou

PDX - HAK

PDXHAK

Portland

Tue 9/1

6:20 am-12:20 pm

2 stops39h 00m

Haikou Meilan Intl

Sat 9/5

11:50 am-4:33 pm

2 stops43h 43m

$4,261

PortlandHaikou

PDX - HAK

PDXHAK

Portland

Tue 9/1

6:20 am-5:50 pm

2 stops44h 30m

Haikou Meilan Intl

Sat 9/5

1:35 pm-4:33 pm

2 stops41h 58m

$4,329

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?

American Airlines and Hainan Airlines are the most popular carriers 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

Fastest flight time	27h 05m
Direct flights	None

The fastest flight from State of Washington to Hainan takes 27h 05m

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 June 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 $1,098	Free Cancellation	Rating 8.3 67 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.