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Cheap flights from Washington to Hainan from $1,004

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Hainan departing on 1/22. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:45 pm - 1:35 pm
SEA
-
SYX
29h 50m3 stops
Multiple Airlines Logo
10:00 am - 8:47 am
SYX
-
SEA
38h 47m2 stops
$1,004Multiple Airlines
Thu, Jan 22 - Thu, Feb 12
Multiple Airlines Logo
3:45 pm - 7:00 pm
SEA
-
SYX
35h 15m2 stops
Multiple Airlines Logo
10:00 am - 8:47 am
SYX
-
SEA
38h 47m2 stops
$1,007Multiple Airlines
Thu, Jan 22 - Thu, Feb 12
Multiple Airlines Logo
5:51 pm - 11:45 pm
PDX
-
SYX
37h 54m2 stops
Multiple Airlines Logo
11:15 pm - 9:35 am
SYX
-
PDX
50h 20m2 stops
$1,043Multiple Airlines
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
3:45 pm - 1:35 pm
SEA
-
SYX
29h 50m3 stops
Multiple Airlines Logo
7:15 pm - 7:15 am
SYX
-
SEA
28h 00m2 stops
$1,072Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
11:43 am - 7:00 pm
SEA
-
SYX
39h 17m2 stops
Multiple Airlines Logo
5:25 pm - 7:15 am
SYX
-
SEA
29h 50m2 stops
$1,075Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
3:45 pm - 1:35 pm
SEA
-
SYX
29h 50m3 stops
Multiple Airlines Logo
1:10 pm - 9:18 am
SYX
-
SEA
36h 08m3 stops
$1,090Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
Cathay Pacific Logo
7:05 am - 3:40 pm
PDX
-
HAK
41h 35m2 stops
Cathay Pacific Logo
4:50 pm - 4:50 pm
HAK
-
PDX
39h 00m2 stops
$1,146Cathay Pacific
Tue, Mar 10 - Sat, Mar 14
Multiple Airlines Logo
9:50 am - 11:15 am
PDX
-
SYX
33h 25m2 stops
Multiple Airlines Logo
8:30 pm - 6:30 pm
SYX
-
PDX
38h 00m3 stops
$1,213Multiple Airlines
Sat, Jan 24 - Sat, Jan 31
Hainan Airlines Logo
10:05 am - 1:55 pm
SEA
-
SYX
35h 50m1 stop
Hainan Airlines Logo
10:00 pm - 8:00 am
SYX
-
SEA
50h 00m2 stops
$1,218Hainan Airlines
Thu, Jan 22 - Thu, Feb 12
Multiple Airlines Logo
9:50 am - 10:30 am
PDX
-
SYX
32h 40m3 stops
Multiple Airlines Logo
6:00 pm - 6:30 pm
SYX
-
PDX
40h 30m3 stops
$1,400Multiple Airlines
Sat, Jan 24 - Sat, Jan 31

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Hainan 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 December 11, 2025.
Use the filters below to find and compare flights from Washington to Hainan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 1/22

3:45 pm-1:35 pm

3 stops29h 50m

Sanya Phoenix Intl

Thu 2/12

10:00 am-8:47 am

2 stops38h 47m

$1,004

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 1/22

3:45 pm-7:00 pm

2 stops35h 15m

Sanya Phoenix Intl

Thu 2/12

10:00 am-8:47 am

2 stops38h 47m

$1,007

PortlandSanya

PDX - SYX

PDXSYX

Portland

Sat 1/24

5:51 pm-11:45 pm

2 stops37h 54m

Sanya Phoenix Intl

Sat 1/31

11:15 pm-9:35 am

2 stops50h 20m

$1,043

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 1/8

3:45 pm-1:35 pm

3 stops29h 50m

Sanya Phoenix Intl

Thu 1/15

7:15 pm-7:15 am

2 stops28h 00m

$1,072

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 1/8

11:43 am-7:00 pm

2 stops39h 17m

Sanya Phoenix Intl

Thu 1/15

5:25 pm-7:15 am

2 stops29h 50m

$1,075

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 1/8

3:45 pm-1:35 pm

3 stops29h 50m

Sanya Phoenix Intl

Thu 1/15

1:10 pm-9:18 am

3 stops36h 08m

$1,090

PortlandHaikou

PDX - HAK

PDXHAK

Portland

Tue 3/10

7:05 am-3:40 pm

2 stops41h 35m

Haikou Meilan Intl

Sat 3/14

4:50 pm-4:50 pm

2 stops39h 00m

$1,146

PortlandSanya

PDX - SYX

PDXSYX

Portland

Sat 1/24

9:50 am-11:15 am

2 stops33h 25m

Sanya Phoenix Intl

Sat 1/31

8:30 pm-6:30 pm

3 stops38h 00m

$1,213

SeattleSanya

SEA - SYX

SEASYX

Seattle/Tacoma Intl

Thu 1/22

10:05 am-1:55 pm

1 stop35h 50m

Sanya Phoenix Intl

Thu 2/12

10:00 pm-8:00 am

2 stops50h 00m

$1,218

PortlandSanya

PDX - SYX

PDXSYX

Portland

Sat 1/24

9:50 am-10:30 am

3 stops32h 40m

Sanya Phoenix Intl

Sat 1/31

6:00 pm-6:30 pm

3 stops40h 30m

$1,400

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Hainan from

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 Washington to Hainan flight route?

Fly from Seattle/Tacoma Intl to Haikou Meilan Intl for the best Washington - Hainan flight prices

What cabin class options are available on Washington to Hainan flights?

There is only 1 cabin class available to choose from on Washington to Hainan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Hainan flights?

You could potentially save up to 52% on your flight if you consider stops on a State of Washington to Hainan flight.

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

29h 50m

Direct flights

None
The fastest flight from State of Washington to Hainan takes 29h 50m
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

  • 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?

  • 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.

  • What is the most popular plane model from State of Washington to Hainan?

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 AirlinesPriceFrom $730Free CancellationRating
8.3
58 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.

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