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Cheap flights from Washington to Castries from $270

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 Castries departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Washington to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:00 am - 3:25 pm
SEA
-
UVF
28h 25m
1 stop
Air Canada Logo
4:20 pm - 9:53 pm
UVF
-
SEA
32h 33m
1 stop
$642Air Canada
Wed, Apr 22 - Wed, Apr 29
Air Canada Logo
10:20 am - 3:25 pm
SEA
-
UVF
26h 05m
2 stops
Air Canada Logo
4:20 pm - 3:05 pm
UVF
-
SEA
25h 45m
2 stops
$668Air Canada
Wed, Apr 22 - Wed, Apr 29
Air Canada Logo
7:45 pm - 2:20 pm
PDX
-
UVF
15h 35m
2 stops
Air Canada Logo
3:15 pm - 2:51 pm
UVF
-
PDX
26h 36m
2 stops
$690Air Canada
Mon, Aug 24 - Tue, Sep 1
Delta Logo
3:55 pm - 2:23 pm
SEA
-
UVF
19h 28m
1 stop
Delta Logo
3:38 pm - 10:05 am
UVF
-
SEA
21h 27m
1 stop
$704Delta
Mon, Sep 14 - Wed, Sep 23
Air Canada Logo
7:45 pm - 2:05 pm
PDX
-
UVF
39h 20m
2 stops
Air Canada Logo
3:05 pm - 7:05 pm
UVF
-
PDX
31h 00m
2 stops
$706Air Canada
Sun, May 24 - Fri, May 29
American Airlines Logo
9:50 pm - 2:15 pm
SEA
-
UVF
13h 25m
1 stop
American Airlines Logo
3:09 pm - 9:20 am
UVF
-
SEA
21h 11m
2 stops
$709American Airlines
Tue, Sep 1 - Tue, Sep 8
American Airlines Logo
11:55 pm - 2:15 pm
SEA
-
UVF
11h 20m
1 stop
American Airlines Logo
3:15 pm - 3:40 pm
UVF
-
SEA
27h 25m
1 stop
$722American Airlines
Tue, Sep 1 - Tue, Sep 8
Delta Logo
3:55 pm - 2:23 pm
SEA
-
UVF
19h 28m
1 stop
Delta Logo
3:38 pm - 10:05 am
UVF
-
SEA
21h 27m
1 stop
$728Delta
Wed, Sep 9 - Wed, Sep 23
United Airlines Logo
6:00 pm - 1:31 pm
SEA
-
UVF
16h 31m
2 stops
United Airlines Logo
2:35 pm - 9:35 am
UVF
-
SEA
22h 00m
2 stops
$778United Airlines
Fri, Sep 11 - Sat, Sep 19
JetBlue Logo
10:20 pm - 3:15 pm
SEA
-
UVF
13h 55m
1 stop
JetBlue Logo
4:20 pm - 10:24 pm
UVF
-
SEA
33h 04m
1 stop
$803JetBlue
Wed, Sep 2 - Tue, Sep 8

American Airlines flights from State of Washington to Castries

Our best American Airlines deals on State of Washington to Castries flight tickets
American Airlines
Sep 1
SEA9:50 pmSeattle/Tacoma Intl
13h 25m
1 stop
UVF2:15 pmCastries Hewanorra
Sep 8
UVF3:09 pmCastries Hewanorra
21h 11m
2 stops
SEA9:20 amSeattle/Tacoma Intl
$709
American Airlines
Sep 1
SEA11:55 pmSeattle/Tacoma Intl
11h 20m
1 stop
UVF2:15 pmCastries Hewanorra
Sep 8
UVF3:15 pmCastries Hewanorra
27h 25m
1 stop
SEA3:40 pmSeattle/Tacoma Intl
$722
American Airlines
Sep 14
SEA5:31 pmSeattle/Tacoma Intl
17h 19m
2 stops
UVF1:50 pmCastries Hewanorra
Sep 21
UVF4:00 pmCastries Hewanorra
22h 46m
2 stops
SEA11:46 amSeattle/Tacoma Intl
$811

Delta flights from State of Washington to Castries

Our best Delta deals on State of Washington to Castries flight tickets
Delta
Sep 14
SEA3:55 pmSeattle/Tacoma Intl
19h 28m
1 stop
UVF2:23 pmCastries Hewanorra
Sep 23
UVF3:38 pmCastries Hewanorra
21h 27m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$704
Delta
Sep 9
SEA3:55 pmSeattle/Tacoma Intl
19h 28m
1 stop
UVF2:23 pmCastries Hewanorra
Sep 23
UVF3:38 pmCastries Hewanorra
21h 27m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$728
Delta
Sep 10
SEA3:55 pmSeattle/Tacoma Intl
19h 28m
1 stop
UVF2:23 pmCastries Hewanorra
Sep 23
UVF3:38 pmCastries Hewanorra
21h 27m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$753

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Castries 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 March 27, 2026.
Use the filters below to find and compare flights from Washington to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 4/22

8:00 am-3:25 pm

1 stop28h 25m

Castries Hewanorra

Wed 4/29

4:20 pm-9:53 pm

1 stop32h 33m

$642

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 4/22

10:20 am-3:25 pm

2 stops26h 05m

Castries Hewanorra

Wed 4/29

4:20 pm-3:05 pm

2 stops25h 45m

$668

PortlandCastries

PDX - UVF

PDXUVF

Portland

Mon 8/24

7:45 pm-2:20 pm

2 stops15h 35m

Castries Hewanorra

Tue 9/1

3:15 pm-2:51 pm

2 stops26h 36m

$690

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 9/14

3:55 pm-2:23 pm

1 stop19h 28m

Castries Hewanorra

Wed 9/23

3:38 pm-10:05 am

1 stop21h 27m

$704

PortlandCastries

PDX - UVF

PDXUVF

Portland

Sun 5/24

7:45 pm-2:05 pm

2 stops39h 20m

Castries Hewanorra

Fri 5/29

3:05 pm-7:05 pm

2 stops31h 00m

$706
Quickest round-trip

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Tue 9/1

9:50 pm-2:15 pm

1 stop13h 25m

Castries Hewanorra

Tue 9/8

3:09 pm-9:20 am

2 stops21h 11m

$709

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Tue 9/1

11:55 pm-2:15 pm

1 stop11h 20m

Castries Hewanorra

Tue 9/8

3:15 pm-3:40 pm

1 stop27h 25m

$722

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 9/9

3:55 pm-2:23 pm

1 stop19h 28m

Castries Hewanorra

Wed 9/23

3:38 pm-10:05 am

1 stop21h 27m

$728

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 9/11

6:00 pm-1:31 pm

2 stops16h 31m

Castries Hewanorra

Sat 9/19

2:35 pm-9:35 am

2 stops22h 00m

$778

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 9/2

10:20 pm-3:15 pm

1 stop13h 55m

Castries Hewanorra

Tue 9/8

4:20 pm-10:24 pm

1 stop33h 04m

$803

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Castries from

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

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

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

You could potentially save up to 27% on your flight if you consider stops on a State of Washington to Castries flight.

Cheap State of Washington to Castries flight deals and tips

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

Fastest flight time

11h 13m

Direct flights

None
The fastest flight from State of Washington to Castries takes 11h 13m
There are no direct flights from State of Washington to Castries. There are no popular flight routes from State of Washington to Castries.
Search flight deals

  • When did momondo last update prices for flights from Washington to Castries Hewanorra Airport?

    Prices for flights from Washington to Castries Hewanorra Airport were last updated today.

  • How many operators does momondo search for flights from Washington to Castries Hewanorra Airport?

  • How old do you have to be to fly from Washington to Castries Hewanorra Airport?

    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 Castries Hewanorra Airport.

  • What documentation or ID do you need to fly to Castries Hewanorra Airport?

    The travel and health documents you'll need for your trip to Castries Hewanorra Airport 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 Castries Hewanorra Airport. 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 Castries

Compare and see reviews for airlines that fly from State of Washington to Castries with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $729Free CancellationRating
7.1
11,507 reviews
Search American Airlines flights

Traveling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Vieux Fort

Why use momondo?

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

It is quick and easy to find Washington to Castries 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 Castries that suits you.

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

Flights from Washington to Castries 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 Washington to Castries?

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 Castries from Washington.

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

Yes momondo offers price alerts on flights to Castries from Washington. 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.

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Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport