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

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

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

The number of operators available for flights from Seattle/Tacoma Intl Airport to Saint Lucia is 1 as of July 2025.

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

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 Seattle/Tacoma Intl Airport to Saint Lucia.

What documentation or ID do you need to fly to Saint Lucia?

The travel and health documents you'll need for your trip to Saint Lucia 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 Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$525 Cheap Flights from Seattle to Saint Lucia in 2025

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Find the cheapest flights from Seattle to Saint Lucia

Round-trip

Cheap round-trip flights

10:57 pm - 2:30 pmSEA-UVF

11h 33m1 stop

5:10 pm - 11:56 amUVF-SEA

22h 46m1 stop

$525American Airlines

Find Deal

Sun, Jan 18 - Thu, Jan 29

11:59 pm - 3:00 pmSEA-UVF

12h 01m1 stop

3:35 pm - 9:19 amUVF-SEA

20h 44m2 stops

$528American Airlines

Find Deal

Mon, Aug 25 - Tue, Sep 2

7:15 pm - 2:15 pmSEA-UVF

40h 00m2 stops

3:10 pm - 7:31 pmUVF-SEA

31h 21m2 stops

$538Air Canada

Find Deal

Wed, Sep 17 - Tue, Sep 23

10:00 am - 2:15 pmSEA-UVF

25h 15m2 stops

3:10 pm - 10:59 amUVF-SEA

22h 49m1 stop

$545Air Canada

Find Deal

Thu, Sep 18 - Tue, Sep 23

11:59 pm - 2:15 pmSEA-UVF

11h 16m1 stop

2:06 pm - 10:20 pmUVF-SEA

35h 14m1 stop

$584JetBlue

Find Deal

Sat, Sep 13 - Sat, Sep 20

11:40 pm - 1:45 pmSEA-UVF

11h 05m1 stop

3:05 pm - 10:10 pmUVF-SEA

34h 05m1 stop

$590JetBlue

Find Deal

Mon, Oct 6 - Fri, Oct 10

11:35 pm - 2:15 pmSEA-UVF

11h 40m1 stop

3:37 pm - 10:06 amUVF-SEA

21h 29m1 stop

$653Delta

Find Deal

Mon, Aug 25 - Sat, Aug 30

1:15 pm - 1:44 pmSEA-UVF

45h 29m3 stops

3:10 pm - 2:16 pmUVF-SEA

26h 06m2 stops

$672

Find Deal

Fri, Sep 12 - Fri, Sep 19

11:20 pm - 2:23 pmSEA-UVF

12h 03m1 stop

3:38 pm - 10:09 amUVF-SEA

21h 31m1 stop

$678Delta

Find Deal

Thu, Sep 18 - Wed, Sep 24

1:15 pm - 1:44 pmSEA-UVF

45h 29m3 stops

3:10 pm - 9:21 amUVF-SEA

21h 11m3 stops

$683

Find Deal

Fri, Sep 12 - Fri, Sep 19

JetBlue flights from Seattle to Saint Lucia

Our best JetBlue deals on Seattle to Saint Lucia flight tickets

JetBlue

Sep 13

SEA11:59 pmSeattle/Tacoma Intl

11h 16m

1 stop

UVF2:15 pmCastries Hewanorra

Sep 20

UVF2:06 pmCastries Hewanorra

35h 14m

1 stop

SEA10:20 pmSeattle/Tacoma Intl

$584

Find similar

JetBlue

Oct 6

SEA11:40 pmSeattle/Tacoma Intl

11h 05m

1 stop

UVF1:45 pmCastries Hewanorra

Oct 10

UVF3:05 pmCastries Hewanorra

34h 05m

1 stop

SEA10:10 pmSeattle/Tacoma Intl

$590

Find similar

JetBlue

Aug 25

SEA9:14 pmSeattle/Tacoma Intl

15h 57m

2 stops

UVF4:11 pmCastries Hewanorra

Aug 30

UVF5:31 pmCastries Hewanorra

29h 54m

1 stop

SEA8:25 pmSeattle/Tacoma Intl

$914

Find similar

American Airlines flights from Seattle to Saint Lucia

Our best American Airlines deals on Seattle to Saint Lucia flight tickets

American Airlines

Jan 18

SEA10:57 pmSeattle/Tacoma Intl

11h 33m

1 stop

UVF2:30 pmCastries Hewanorra

Jan 29

UVF5:10 pmCastries Hewanorra

22h 46m

1 stop

SEA11:56 amSeattle/Tacoma Intl

$525

Find similar

American Airlines

Aug 25

SEA11:59 pmSeattle/Tacoma Intl

12h 01m

1 stop

UVF3:00 pmCastries Hewanorra

Sep 2

UVF3:35 pmCastries Hewanorra

20h 44m

2 stops

SEA9:19 amSeattle/Tacoma Intl

$528

Find similar

American Airlines

Jan 18

SEA6:22 pmSeattle/Tacoma Intl

16h 03m

2 stops

UVF2:25 pmCastries Hewanorra

Jan 29

UVF5:10 pmCastries Hewanorra

21h 31m

2 stops

SEA10:41 amSeattle/Tacoma Intl

$530

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/18

10:57 pm-2:30 pm

1 stop11h 33m

Castries Hewanorra

Thu 1/29

5:10 pm-11:56 am

1 stop22h 46m

$525

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 8/25

11:59 pm-3:00 pm

1 stop12h 01m

Castries Hewanorra

Tue 9/2

3:35 pm-9:19 am

2 stops20h 44m

$528

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 9/17

7:15 pm-2:15 pm

2 stops40h 00m

Castries Hewanorra

Tue 9/23

3:10 pm-7:31 pm

2 stops31h 21m

$538

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Thu 9/18

10:00 am-2:15 pm

2 stops25h 15m

Castries Hewanorra

Tue 9/23

3:10 pm-10:59 am

1 stop22h 49m

$545

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sat 9/13

11:59 pm-2:15 pm

1 stop11h 16m

Castries Hewanorra

Sat 9/20

2:06 pm-10:20 pm

1 stop35h 14m

$584

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 10/6

11:40 pm-1:45 pm

1 stop11h 05m

Castries Hewanorra

Fri 10/10

3:05 pm-10:10 pm

1 stop34h 05m

$590

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 8/25

11:35 pm-2:15 pm

1 stop11h 40m

Castries Hewanorra

Sat 8/30

3:37 pm-10:06 am

1 stop21h 29m

$653

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 9/12

1:15 pm-1:44 pm

3 stops45h 29m

Castries Hewanorra

Fri 9/19

3:10 pm-2:16 pm

2 stops26h 06m

$672

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Thu 9/18

11:20 pm-2:23 pm

1 stop12h 03m

Castries Hewanorra

Wed 9/24

3:38 pm-10:09 am

1 stop21h 31m

$678

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 9/12

1:15 pm-1:44 pm

3 stops45h 29m

Castries Hewanorra

Fri 9/19

3:10 pm-9:21 am

3 stops21h 11m

$683

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seattle to Saint Lucia

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 day to depart on your flight to Saint Lucia?

Our data shows that Tuesday is the least expensive day to fly to Saint Lucia. Tickets to fly out on this day can be as low as $590. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $924.

Cheap Seattle to Saint Lucia flight deals and tips

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

Best Price Found	$525
Fastest flight time	10h 12m
Direct flights	None
Airports in Saint Lucia	1 airport

The best flight deal from Seattle to Saint Lucia found on momondo in the last 72 hours is $525

The fastest flight from Seattle to Saint Lucia takes 10h 12m

There are no direct flights from Seattle to Saint Lucia. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Castries Hewanorra Airport.

There is 1 airport near Saint Lucia: Castries Hewanorra (UVF)

Search flight deals

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Saint Lucia?
Prices for flights from Seattle/Tacoma Intl Airport to Saint Lucia are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Saint Lucia?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Saint Lucia is 1 as of July 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Saint Lucia?
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 Seattle/Tacoma Intl Airport to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents you'll need for your trip to Saint Lucia 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 Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seattle to Saint Lucia

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $590	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Seattle to Saint Lucia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Saint Lucia that suits you.

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

Yes. momondo allows you to filter the results for Seattle to Saint Lucia flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Saint Lucia?

momondo provides multiple filters to help you find the best flight to Saint Lucia from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Saint Lucia from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Saint Lucia

Flights to Castriesfrom $458

Cheap flights from Seattle to Saint Lucia from $525

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Saint Lucia departing on 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Saint Lucia

Cheap round-trip flights

JetBlue flights from Seattle to Saint Lucia

Our best JetBlue deals on Seattle to Saint Lucia flight tickets

American Airlines flights from Seattle to Saint Lucia

Our best American Airlines deals on Seattle to Saint Lucia flight tickets

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Use the filters below to find and compare flights from Seattle to Saint Lucia that are best for you.

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from Seattle to Saint Lucia

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 day to depart on your flight to Saint Lucia?

Cheap Seattle to Saint Lucia flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Saint Lucia

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

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

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

What documentation or ID do you need to fly to Saint Lucia?

Best airlines flying from Seattle to Saint Lucia

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

Why use momondo?

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

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

How can momondo help me find flights from Seattle to Saint Lucia?

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

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Saint Lucia

Popular cities in Saint Lucia

Popular flights according to clicks in the last 7 days on momondo