Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Castries from $280

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Castries departing on 5/4. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:42 pm - 2:29 pm
SEA
-
UVF
13h 47m
1 stop
American Airlines Logo
3:14 pm - 9:45 am
UVF
-
SEA
21h 31m
1 stop
$655American Airlines
ו', אוג' 28 - ו', ספט' 4
American Airlines Logo
8:35 pm - 2:29 pm
SEA
-
UVF
14h 54m
2 stops
American Airlines Logo
3:14 pm - 9:19 am
UVF
-
SEA
21h 05m
2 stops
$660American Airlines
ו', אוג' 28 - ו', ספט' 4
Multiple Airlines Logo
10:30 am - 2:10 pm
SEA
-
UVF
24h 40m
2 stops
Multiple Airlines Logo
3:05 pm - 10:07 am
UVF
-
SEA
22h 02m
3 stops
$661Multiple Airlines
ב', יוני 15 - ו', יוני 19
American Airlines Logo
12:15 pm - 2:29 pm
SEA
-
UVF
23h 14m
1 stop
American Airlines Logo
3:04 pm - 12:20 am
UVF
-
SEA
12h 16m
1 stop
$672American Airlines
ד', אוג' 26 - ג', ספט' 1
American Airlines Logo
12:15 pm - 2:29 pm
SEA
-
UVF
23h 14m
1 stop
American Airlines Logo
3:04 pm - 1:10 pm
UVF
-
SEA
25h 06m
2 stops
$677American Airlines
ד', אוג' 26 - ג', ספט' 1
Multiple Airlines Logo
10:30 am - 2:10 pm
SEA
-
UVF
24h 40m
2 stops
Multiple Airlines Logo
3:05 pm - 9:07 pm
UVF
-
SEA
33h 02m
1 stop
$709Multiple Airlines
ב', יוני 15 - ו', יוני 19
Air Canada Logo
3:00 pm - 2:20 pm
SEA
-
UVF
44h 20m
2 stops
Air Canada Logo
3:15 pm - 10:07 am
UVF
-
SEA
21h 52m
2 stops
$733Air Canada
ד', אוג' 26 - ג', ספט' 1
Air Canada Logo
8:00 am - 2:20 pm
SEA
-
UVF
27h 20m
1 stop
Air Canada Logo
3:05 pm - 10:48 pm
UVF
-
SEA
34h 43m
2 stops
$761Air Canada
ה', יוני 25 - ו', יולי 3
Multiple Airlines Logo
10:28 pm - 12:44 pm
SEA
-
UVF
11h 16m
1 stop
Multiple Airlines Logo
3:05 pm - 9:07 pm
UVF
-
SEA
33h 02m
1 stop
$766Multiple Airlines
ב', יוני 15 - ו', יוני 19
American Airlines Logo
11:10 pm - 3:30 pm
SEA
-
UVF
13h 20m
1 stop
American Airlines Logo
2:20 pm - 11:25 pm
UVF
-
SEA
12h 05m
1 stop
$768American Airlines
ו', אוק' 16 - ו', אוק' 23

American Airlines flights from Seattle to Castries

Our best American Airlines deals on Seattle to Castries flight tickets
American Airlines
Aug 28
SEA9:42 pmSeattle/Tacoma Intl
13h 47m
1 stop
UVF2:29 pmCastries Hewanorra
Sep 4
UVF3:14 pmCastries Hewanorra
21h 31m
1 stop
SEA9:45 amSeattle/Tacoma Intl
$655
American Airlines
Aug 28
SEA8:35 pmSeattle/Tacoma Intl
14h 54m
2 stops
UVF2:29 pmCastries Hewanorra
Sep 4
UVF3:14 pmCastries Hewanorra
21h 31m
1 stop
SEA9:45 amSeattle/Tacoma Intl
$660
American Airlines
Aug 26
SEA12:15 pmSeattle/Tacoma Intl
23h 14m
1 stop
UVF2:29 pmCastries Hewanorra
Sep 1
UVF3:04 pmCastries Hewanorra
12h 16m
1 stop
SEA12:20 amSeattle/Tacoma Intl
$672

Air Canada flights from Seattle to Castries

Our best Air Canada deals on Seattle to Castries flight tickets
Air Canada
Aug 26
SEA3:00 pmSeattle/Tacoma Intl
44h 20m
2 stops
UVF2:20 pmCastries Hewanorra
Sep 1
UVF3:15 pmCastries Hewanorra
21h 52m
2 stops
SEA10:07 amSeattle/Tacoma Intl
$733
Air Canada
Jun 25
SEA8:00 amSeattle/Tacoma Intl
27h 20m
1 stop
UVF2:20 pmCastries Hewanorra
Jul 3
UVF3:05 pmCastries Hewanorra
34h 43m
2 stops
SEA10:48 pmSeattle/Tacoma Intl
$761
Air Canada
Jun 25
SEA8:00 amSeattle/Tacoma Intl
27h 20m
1 stop
UVF2:20 pmCastries Hewanorra
Jul 3
UVF3:05 pmCastries Hewanorra
33h 02m
1 stop
SEA9:07 pmSeattle/Tacoma Intl
$890

momondo Fare Finder

 
Customize your flight search to find flights from Seattle 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 אפריל 22, 2026.
Use the filters below to find and compare flights from Seattle 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

ו' 8/28

9:42 pm-2:29 pm

1 stop13h 47m

Castries Hewanorra

ו' 9/4

3:14 pm-9:45 am

1 stop21h 31m

$655

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ו' 8/28

8:35 pm-2:29 pm

2 stops14h 54m

Castries Hewanorra

ו' 9/4

3:14 pm-9:19 am

2 stops21h 05m

$660

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ב' 6/15

10:30 am-2:10 pm

2 stops24h 40m

Castries Hewanorra

ו' 6/19

3:05 pm-10:07 am

3 stops22h 02m

$661

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ד' 8/26

12:15 pm-2:29 pm

1 stop23h 14m

Castries Hewanorra

ג' 9/1

3:04 pm-12:20 am

1 stop12h 16m

$672

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ד' 8/26

12:15 pm-2:29 pm

1 stop23h 14m

Castries Hewanorra

ג' 9/1

3:04 pm-1:10 pm

2 stops25h 06m

$677

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ב' 6/15

10:30 am-2:10 pm

2 stops24h 40m

Castries Hewanorra

ו' 6/19

3:05 pm-9:07 pm

1 stop33h 02m

$709

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ד' 8/26

3:00 pm-2:20 pm

2 stops44h 20m

Castries Hewanorra

ג' 9/1

3:15 pm-10:07 am

2 stops21h 52m

$733

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ה' 6/25

8:00 am-2:20 pm

1 stop27h 20m

Castries Hewanorra

ו' 7/3

3:05 pm-10:48 pm

2 stops34h 43m

$761

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ב' 6/15

10:28 pm-12:44 pm

1 stop11h 16m

Castries Hewanorra

ו' 6/19

3:05 pm-9:07 pm

1 stop33h 02m

$766
Quickest round-trip

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

ו' 10/16

11:10 pm-3:30 pm

1 stop13h 20m

Castries Hewanorra

ו' 10/23

2:20 pm-11:25 pm

1 stop12h 05m

$768

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Castries from

How to get the cheapest flight ticket from Seattle 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

What is the typical price of a round-trip flight between Seattle and Castries?

When to book flights from Seattle to Castries

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Castries according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Castries (SEA to UVF) flight deals and tips

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

Fastest flight time

13h 48m

Direct flights

None
The fastest flight from Seattle to Castries takes 13h 48m
There are no direct flights from Seattle to Castries. There are no popular flight routes from Seattle to Castries.
Search flight deals

Frequently asked questions about flying from Seattle to Castries

  • How far is Seattle/Tacoma Intl to Castries Hewanorra by plane?

    The distance between Seattle/Tacoma Intl and Castries Hewanorra is about 4177.3 mi. Typically, this will take 13h 48m by plane in normal conditions.

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

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

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

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Castries Hewanorra Airport?

    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 Seattle/Tacoma Intl Airport to Castries Hewanorra Airport.

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

    The required travel and health documents for your Castries Hewanorra Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Castries Hewanorra Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Seattle to Castries?

Best airlines flying from Seattle to Castries

Compare and see reviews for airlines that fly from Seattle to Castries with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $264Free CancellationRating
7.9
8,430 reviews
Search Delta flights
American AirlinesPriceFrom $752Free CancellationRating
7.1
11,647 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 Seattle to Castries?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Castries. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo provides multiple filters to help you find the best flight to Castries 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 Castries right now. Can momondo alert me if prices change?

Price alerts on flights to Castries from Seattle 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 Castries 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
ו' 5/22
ו' 5/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport