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

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 12h 24m on average. If you fly from Seattle (another popular airport in State of Washington) to Castries, then the average flight time is 13h 47m.

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 June 2026, 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.

$474 Cheap Flights from Washington to Saint Lucia in 2026

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Find the cheapest flights from Washington to Saint Lucia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 12:10 pm

SEA

UVF

17h 30m

2 stops

12:55 pm - 7:55 am

UVF

SEA

22h 00m

2 stops

$564United Airlines

Fri, Jul 3 - Sat, Jul 11

11:11 pm - 3:31 pm

SEA

UVF

13h 20m

1 stop

12:55 pm - 7:55 am

UVF

SEA

22h 00m

2 stops

$617United Airlines

Fri, Jul 3 - Sat, Jul 11

6:15 pm - 1:54 pm

SEA

UVF

16h 39m

2 stops

3:02 pm - 11:25 am

UVF

SEA

23h 23m

2 stops

$640American Airlines

Wed, Sep 16 - Thu, Sep 24

10:10 am - 2:20 pm

PDX

UVF

49h 10m

2 stops

4:11 pm - 1:04 pm

UVF

PDX

23h 53m

2 stops

$644Multiple Airlines

Wed, Aug 26 - Mon, Aug 31

5:37 pm - 1:50 pm

SEA

UVF

17h 13m

2 stops

3:20 pm - 9:24 am

UVF

SEA

21h 04m

2 stops

$679American Airlines

Fri, Jul 3 - Fri, Jul 10

10:10 am - 2:20 pm

PDX

UVF

25h 10m

2 stops

1:59 pm - 1:04 pm

UVF

PDX

26h 05m

2 stops

$730Multiple Airlines

Thu, Aug 27 - Mon, Aug 31

7:45 pm - 2:20 pm

PDX

UVF

15h 35m

2 stops

3:15 pm - 2:51 pm

UVF

PDX

26h 36m

2 stops

$757Air Canada

Mon, Aug 24 - Fri, Aug 28

7:45 pm - 2:10 pm

PDX

UVF

39h 25m

2 stops

3:05 pm - 9:31 am

UVF

PDX

21h 26m

2 stops

$760Air Canada

Wed, Jul 8 - Fri, Jul 17

1:30 pm - 2:13 pm

GEG

UVF

21h 43m

2 stops

3:33 pm - 1:21 pm

UVF

GEG

24h 48m

2 stops

$793Delta

Wed, Jul 1 - Fri, Jul 10

11:59 pm - 2:08 pm

SEA

UVF

11h 09m

1 stop

3:33 pm - 9:50 am

UVF

SEA

21h 17m

1 stop

$844Delta

Wed, Sep 16 - Thu, Sep 24

Delta flights from State of Washington to Saint Lucia

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

Delta

Jul 1

GEG1:30 pmSpokane

21h 43m

2 stops

UVF2:13 pmCastries Hewanorra

Jul 10

UVF3:33 pmCastries Hewanorra

24h 48m

2 stops

GEG1:21 pmSpokane

$793

Delta

Sep 16

SEA11:59 pmSeattle/Tacoma Intl

11h 09m

1 stop

UVF2:08 pmCastries Hewanorra

Sep 24

UVF3:33 pmCastries Hewanorra

21h 17m

1 stop

SEA9:50 amSeattle/Tacoma Intl

$844

Delta

Aug 15

SEA11:59 pmSeattle/Tacoma Intl

11h 15m

1 stop

UVF2:14 pmCastries Hewanorra

Aug 22

UVF3:34 pmCastries Hewanorra

21h 15m

1 stop

SEA9:49 amSeattle/Tacoma Intl

$1,186

JetBlue flights from State of Washington to Saint Lucia

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

JetBlue

Jul 3

SEA10:28 pmSeattle/Tacoma Intl

12h 03m

1 stop

UVF1:31 pmCastries Hewanorra

Jul 8

UVF4:45 pmCastries Hewanorra

31h 12m

1 stop

SEA8:57 pmSeattle/Tacoma Intl

$882

JetBlue

Jun 26

PDX11:29 pmPortland

34h 15m

2 stops

UVF12:44 pmCastries Hewanorra

Jul 2

UVF4:32 pmCastries Hewanorra

33h 02m

2 stops

PDX10:34 pmPortland

$966

JetBlue

Aug 5

SEA10:19 pmSeattle/Tacoma Intl

13h 47m

1 stop

UVF3:06 pmCastries Hewanorra

Aug 10

UVF4:11 pmCastries Hewanorra

31h 53m

1 stop

SEA9:04 pmSeattle/Tacoma Intl

$1,090

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

Cheapest round-trip

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 7/3

3:40 pm-12:10 pm

2 stops17h 30m

Castries Hewanorra

Sat 7/11

12:55 pm-7:55 am

2 stops22h 00m

$564

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 7/3

11:11 pm-3:31 pm

1 stop13h 20m

Castries Hewanorra

Sat 7/11

12:55 pm-7:55 am

2 stops22h 00m

$617

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 9/16

6:15 pm-1:54 pm

2 stops16h 39m

Castries Hewanorra

Thu 9/24

3:02 pm-11:25 am

2 stops23h 23m

$640

PortlandCastries

PDX - UVF

PDXUVF

Portland

Wed 8/26

10:10 am-2:20 pm

2 stops49h 10m

Castries Hewanorra

Mon 8/31

4:11 pm-1:04 pm

2 stops23h 53m

$644

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 7/3

5:37 pm-1:50 pm

2 stops17h 13m

Castries Hewanorra

Fri 7/10

3:20 pm-9:24 am

2 stops21h 04m

$679

PortlandCastries

PDX - UVF

PDXUVF

Portland

Thu 8/27

10:10 am-2:20 pm

2 stops25h 10m

Castries Hewanorra

Mon 8/31

1:59 pm-1:04 pm

2 stops26h 05m

$730

PortlandCastries

PDX - UVF

PDXUVF

Portland

Mon 8/24

7:45 pm-2:20 pm

2 stops15h 35m

Castries Hewanorra

Fri 8/28

3:15 pm-2:51 pm

2 stops26h 36m

$757

PortlandCastries

PDX - UVF

PDXUVF

Portland

Wed 7/8

7:45 pm-2:10 pm

2 stops39h 25m

Castries Hewanorra

Fri 7/17

3:05 pm-9:31 am

2 stops21h 26m

$760

SpokaneCastries

GEG - UVF

GEGUVF

Spokane

Wed 7/1

1:30 pm-2:13 pm

2 stops21h 43m

Castries Hewanorra

Fri 7/10

3:33 pm-1:21 pm

2 stops24h 48m

$793

Quickest round-trip

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 9/16

11:59 pm-2:08 pm

1 stop11h 09m

Castries Hewanorra

Thu 9/24

3:33 pm-9:50 am

1 stop21h 17m

$844

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 month to fly to Saint Lucia?

The month of February is, on average, the cheapest month to fly to Saint Lucia from State of Washington, with most prices found around $0. If you aren’t able to travel to Saint Lucia during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $491.

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

You could potentially save up to 25% 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

Fastest flight time	12h 24m
Direct flights	None

The fastest flight from State of Washington to Saint Lucia takes 12h 24m

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

Frequently asked questions about flying from Washington to Saint Lucia

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 June 2026, 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 $668	Free Cancellation	Rating 7.1 11,640 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

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Flights to Castriesfrom $507

Cheap flights from Washington to Saint Lucia from $474

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 6/20. 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

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Filter for what you want

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Delta flights from State of Washington to Saint Lucia

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

JetBlue flights from State of Washington to Saint Lucia

Our best JetBlue 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

What is the cheapest month to fly to Saint Lucia?

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

What is the cheapest airline that flies 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

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington 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?

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

State of Washington flight routes

According to popular flight searches on momondo this year

Saint Lucia flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Saint Lucia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Saint Lucia

List of cabin classes available on flights landing in Saint Lucia. Availability may vary depending on flight origin and airline.

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According to popular flight searches on momondo this year