How do I get Price Alerts for flights from Seattle to Hainan?

Search flight deals from Seattle to Hainan . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Seattle to Hainan with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Hainan?

Prices for flights from Seattle/Tacoma Intl Airport to Hainan are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Hainan?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Hainan is 1 as of September 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Hainan?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Hainan.

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

The travel and health documents required for your trip to Hainan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hainan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Find the cheapest flights from Seattle 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

$755Cathay Pacific

Tue, Oct 20 - Wed, Nov 18

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

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

41h 56m2 stops Hong Kong Intl Vancouver Intl

$821Multiple Airlines

Tue, Oct 20 - Wed, Nov 18

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

8:45 pm - 1:35 pmSEA Seattle/Tacoma Intl-SYX Sanya Phoenix Intl

49h 50m2 stops Los Angeles Shanghai Pu Dong

6:25 am - 4:01 pmSYX Sanya Phoenix Intl-SEA Seattle/Tacoma Intl

24h 36m2 stops Shanghai Pu Dong Los Angeles

$823Multiple Airlines

Wed, Oct 21 - Wed, Oct 28

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 - 2:44 pmHAK Haikou Meilan Intl-SEA Seattle/Tacoma Intl

37h 59m2 stops Hong Kong Intl Vancouver Intl

$851Multiple Airlines

Tue, Oct 20 - Wed, Nov 18

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

11:00 am - 11:45 amSEA Seattle/Tacoma Intl-HAK Haikou Meilan Intl

33h 45m1 stop Beijing Capital

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

16h 20m1 stop Beijing Capital

$974Hainan Airlines

Tue, Oct 20 - Tue, Nov 17

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Cathay Pacific flights from Seattle to Hainan

Our best Cathay Pacific deals on Seattle to Hainan flight tickets

Cathay Pacific

Sep 24

SEA11:45 amSeattle/Tacoma Intl

36h 55m

1 stop

HAK3:40 pmHaikou Meilan Intl

Sep 28

HAK4:50 pmHaikou Meilan Intl

32h 15m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$752

Cathay Pacific

Oct 20

SEA11:45 amSeattle/Tacoma Intl

36h 55m

1 stop

HAK3:40 pmHaikou Meilan Intl

Nov 18

HAK4:45 pmHaikou Meilan Intl

32h 00m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$755

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

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 10/20

11:45 am-3:40 pm

1 stop36h 55m

Haikou Meilan Intl

Wed 11/18

4:45 pm-8:45 am

1 stop32h 00m

$755

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

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

Tue 10/20

11:45 am-3:40 pm

1 stop36h 55m

Haikou Meilan Intl

Wed 11/18

4:45 pm-6:41 pm

2 stops41h 56m

$821

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

SeattleSanya

SEA Seattle/Tacoma Intl - SYX Sanya Phoenix Intl

SEASYX

Seattle/Tacoma Intl

Wed 10/21

8:45 pm-1:35 pm

2 stops49h 50m

Sanya Phoenix Intl

Wed 10/28

6:25 am-4:01 pm

2 stops24h 36m

$823

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

Tue 10/20

11:33 am-3:40 pm

2 stops37h 07m

Haikou Meilan Intl

Wed 11/18

4:45 pm-2:44 pm

2 stops37h 59m

$851

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

Quickest round-trip

SeattleHaikou

SEA Seattle/Tacoma Intl - HAK Haikou Meilan Intl

SEAHAK

Seattle/Tacoma Intl

Tue 10/20

11:00 am-11:45 am

1 stop33h 45m

Haikou Meilan Intl

Tue 11/17

8:00 am-8:20 am

1 stop16h 20m

$974

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

Cheap Seattle to Hainan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Hainan

Best Price Found	$388
Fastest flight time	32h 05m
Direct flights	None

The best one-way flight to Hainan from Seattle in the past 72 hours is $388. The best round-trip flight deal from Seattle to Hainan found on momondo in the last 72 hours is $755.

The fastest flight from Seattle to Hainan takes 32h 05m

There are no direct flights from Seattle to Hainan. There are no popular flight routes from Seattle to Hainan.

Search flight deals

Frequently asked questions about flying from Seattle to Hainan

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Hainan?
Prices for flights from Seattle/Tacoma Intl Airport to Hainan are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Hainan?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Hainan is 1 as of September 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Hainan?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Hainan.
What documentation or ID do you need to fly to Hainan?
The travel and health documents required for your trip to Hainan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hainan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Seattle to Hainan

Compare and see reviews for airlines that fly from Seattle to Hainan with momondo

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

Frequently asked questions about flying from Seattle to Hainan

How do I get Price Alerts for flights from Seattle to Hainan?
Search flight deals from Seattle to Hainan. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Seattle to Hainan with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

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

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

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

Flights from Seattle to Hainan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Seattle to Hainan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Hainan, momondo offers a useful price alert feature which will track prices for flights to Hainan from Seattle and alert you when they change.