What is the cheapest airline that flies from Washington to Saint Lucia?

Air Canada, American Airlines, and Delta are the most popular carriers operating from Washington to Saint Lucia

How long is the flight from State of Washington to Saint Lucia?

The flight from State of Washington to Saint Lucia depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Spokane (a popular airport in State of Washington) to Castries (the most popular airport in Saint Lucia), then the flight time is 14h 06m on average. If you fly from Seattle (another popular airport in State of Washington) to Castries, then the average flight time is 18h 59m.

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

Prices for flights from Washington to Saint Lucia were last updated today.

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

As of November 2025, there is 1 operator available to choose from for flights from Washington to Saint Lucia.

How old do you have to be to fly from Washington to Saint Lucia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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.

$251 Cheap Flights from Washington to Saint Lucia in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 3:05 pmSEA-UVF

19h 00m1 stop

4:25 pm - 10:07 amUVF-SEA

21h 42m1 stop

$491Delta

Find Deal

Sun, Jan 18 - Thu, Jan 29

9:45 pm - 3:03 pmSEA-UVF

13h 18m1 stop

5:02 pm - 11:45 amUVF-SEA

22h 43m2 stops

$496American Airlines

Find Deal

Sun, Jan 18 - Thu, Jan 29

9:45 pm - 3:03 pmSEA-UVF

13h 18m1 stop

5:02 pm - 11:45 amUVF-SEA

22h 43m2 stops

$521American Airlines

Find Deal

Sun, Jan 11 - Sat, Jan 17

8:00 pm - 4:20 pmSEA-UVF

40h 20m2 stops

5:15 pm - 10:46 pmUVF-SEA

33h 31m2 stops

$617Air Canada

Find Deal

Mon, Dec 1 - Wed, Dec 10

7:00 pm - 4:20 pmPDX-UVF

41h 20m2 stops

5:15 pm - 9:15 amUVF-PDX

44h 00m2 stops

$725Air Canada

Find Deal

Mon, Dec 1 - Fri, Dec 5

5:45 am - 1:30 pmSEA-UVF

28h 45m2 stops

3:50 pm - 4:48 pmUVF-SEA

27h 58m2 stops

$759American Airlines

Find Deal

Tue, Mar 31 - Thu, Apr 2

9:45 pm - 3:03 pmSEA-UVF

13h 18m1 stop

4:41 pm - 7:04 pmUVF-SEA

30h 23m1 stop

$760American Airlines

Find Deal

Sun, Jan 11 - Sat, Jan 17

10:49 pm - 1:04 pmPDX-UVF

10h 15m1 stop

2:46 pm - 11:46 pmUVF-PDX

13h 00m1 stop

$874British Airways

Find Deal

Sat, Jan 3 - Fri, Jan 9

10:05 am - 2:50 pmSEA-UVF

24h 45m3 stops

5:15 pm - 10:16 pmUVF-SEA

33h 01m1 stop

$1,033Multiple Airlines

Find Deal

Sat, Dec 13 - Sun, Dec 21

10:05 am - 4:25 pmSEA-UVF

26h 20m2 stops

3:40 pm - 2:20 pmUVF-SEA

26h 40m3 stops

$1,042Multiple Airlines

Find Deal

Sun, Jan 18 - Thu, Jan 29

Delta flights from State of Washington to Saint Lucia

Our best Delta deals on State of Washington to Saint Lucia flight tickets

Delta

Jan 18

SEA4:05 pmSeattle/Tacoma Intl

19h 00m

1 stop

UVF3:05 pmCastries Hewanorra

Jan 29

UVF4:25 pmCastries Hewanorra

21h 42m

1 stop

SEA10:07 amSeattle/Tacoma Intl

$491

Find similar

Delta

Dec 1

PDX10:10 pmPortland

13h 26m

1 stop

UVF3:36 pmCastries Hewanorra

Dec 5

UVF4:56 pmCastries Hewanorra

23h 44m

2 stops

PDX12:40 pmPortland

$822

Find similar

Delta

Mar 10

PDX9:45 pmPortland

13h 19m

1 stop

UVF2:04 pmCastries Hewanorra

Mar 12

UVF3:24 pmCastries Hewanorra

22h 41m

1 stop

PDX11:05 amPortland

$957

Find similar

American Airlines flights from State of Washington to Saint Lucia

Our best American Airlines deals on State of Washington to Saint Lucia flight tickets

American Airlines

Jan 18

SEA9:45 pmSeattle/Tacoma Intl

13h 18m

1 stop

UVF3:03 pmCastries Hewanorra

Jan 29

UVF5:02 pmCastries Hewanorra

22h 43m

2 stops

SEA11:45 amSeattle/Tacoma Intl

$496

Find similar

American Airlines

Jan 11

SEA9:45 pmSeattle/Tacoma Intl

13h 18m

1 stop

UVF3:03 pmCastries Hewanorra

Jan 17

UVF5:02 pmCastries Hewanorra

22h 43m

2 stops

SEA11:45 amSeattle/Tacoma Intl

$521

Find similar

American Airlines

Mar 31

SEA5:45 amSeattle/Tacoma Intl

28h 45m

2 stops

UVF1:30 pmCastries Hewanorra

Apr 2

UVF3:50 pmCastries Hewanorra

27h 58m

2 stops

SEA4:48 pmSeattle/Tacoma Intl

$759

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/18

4:05 pm-3:05 pm

1 stop19h 00m

Castries Hewanorra

Thu 1/29

4:25 pm-10:07 am

1 stop21h 42m

$491

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/18

9:45 pm-3:03 pm

1 stop13h 18m

Castries Hewanorra

Thu 1/29

5:02 pm-11:45 am

2 stops22h 43m

$496

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/11

9:45 pm-3:03 pm

1 stop13h 18m

Castries Hewanorra

Sat 1/17

5:02 pm-11:45 am

2 stops22h 43m

$521

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 12/1

8:00 pm-4:20 pm

2 stops40h 20m

Castries Hewanorra

Wed 12/10

5:15 pm-10:46 pm

2 stops33h 31m

$617

PortlandCastries

PDX - UVF

PDXUVF

Portland

Mon 12/1

7:00 pm-4:20 pm

2 stops41h 20m

Castries Hewanorra

Fri 12/5

5:15 pm-9:15 am

2 stops44h 00m

$725

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Tue 3/31

5:45 am-1:30 pm

2 stops28h 45m

Castries Hewanorra

Thu 4/2

3:50 pm-4:48 pm

2 stops27h 58m

$759

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/11

9:45 pm-3:03 pm

1 stop13h 18m

Castries Hewanorra

Sat 1/17

4:41 pm-7:04 pm

1 stop30h 23m

$760

PortlandCastries

PDX - UVF

PDXUVF

Portland

Sat 1/3

10:49 pm-1:04 pm

1 stop10h 15m

Castries Hewanorra

Fri 1/9

2:46 pm-11:46 pm

1 stop13h 00m

$874

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sat 12/13

10:05 am-2:50 pm

3 stops24h 45m

Castries Hewanorra

Sun 12/21

5:15 pm-10:16 pm

1 stop33h 01m

$1,033

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/18

10:05 am-4:25 pm

2 stops26h 20m

Castries Hewanorra

Thu 1/29

3:40 pm-2:20 pm

3 stops26h 40m

$1,042

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 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

Prices

Airlines

Other information

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 State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $924.

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

You could potentially save up to 69% on your flight if you consider stops on a State of Washington to Saint Lucia flight.

Cheap State of Washington to Saint Lucia flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Washington to Saint Lucia?
Prices for flights from Washington to Saint Lucia were last updated today.
How many operators does momondo search for flights from Washington to Saint Lucia?
As of November 2025, there is 1 operator available to choose from for flights from Washington to Saint Lucia.
How old do you have to be to fly from Washington to Saint Lucia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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 State of Washington to Saint Lucia

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $615	Free Cancellation	Rating 7.2 11,047 reviews		Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Washington 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 Washington to Saint Lucia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Saint Lucia from Washington which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Saint Lucia.

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

Price alerts on flights to Saint Lucia from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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 $477

State of Washington flight routes

Flights from Seattle/Tacoma Intl to Santa Rosa Sonoma County

Flights from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl

Flights from Seattle/Tacoma Intl to Spokane

Flights from Seattle/Tacoma Intl to Portland

Flights from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl

Flights from Seattle/Tacoma Intl to Oakland

Cheap flights from Washington to Saint Lucia from $251

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Saint Lucia departing on 12/2. 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 Washington to Saint Lucia

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Delta flights from State of Washington to Saint Lucia

Our best Delta deals on State of Washington to Saint Lucia flight tickets

American Airlines flights from State of Washington to Saint Lucia

Our best American Airlines deals on State of Washington to Saint Lucia flight tickets

momondo Fare Finder

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

See travel insights to Saint Lucia from

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

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

You could potentially save up to 69% on your flight if you consider stops on a State of Washington to Saint Lucia flight.

What is the cheapest airline that flies from Washington to Saint Lucia?

Air Canada, American Airlines, and Delta are the most popular carriers operating from Washington to Saint Lucia

How long is the flight from State of Washington to Saint Lucia?

Cheap State of Washington to Saint Lucia flight deals and tips

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

Direct flights

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

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

How old do you have to be to fly from Washington to Saint Lucia?

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

Best airlines flying from State of Washington to Saint Lucia

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Washington 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