SEA - UVF

$482 Find Cheap Flights from Seattle to Castries - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$713
Typical prices: $839-$1,573
Air Canada
Mon 10/29Fri 11/2
SEA - UVF • 1 stop
Cheapest one-way
$482
Typical prices: $414-$551
WestJet
Thu 2/1
SEA - UVF • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Seattle and Castries. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 33% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $1,092 (round-trip)
Miami (MIA)
Shortest trip • 12h 57m (one-way)
Insights
Insights
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Booking Insights
Flight Deals

Cheap Flights from Seattle to Castries (SEA-UVF)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Castries

Thu, Oct 29 - Mon, Nov 2
Air Canada Logo
7:45 am - 3:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
28h 55m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 pm - 9:32 amUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
43h 57m2 stops Toronto Pearson Intl Vancouver Intl
$713Air Canada
Thu, Oct 29 - Mon, Nov 2
Air Canada Logo
8:40 am - 3:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
28h 00m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
5:35 pm - 6:22 pmUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
28h 47m2 stops Toronto Pearson Intl Vancouver Intl
$713Air Canada
Mon, Jan 11 - Thu, Jan 21
Air Canada Logo
7:05 pm - 4:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
41h 35m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
5:35 pm - 6:22 pmUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
28h 47m2 stops Toronto Pearson Intl Vancouver Intl
$715Air Canada
Sun, Jan 10 - Wed, Jan 20
Air Canada Logo
10:10 am - 4:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
26h 30m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
5:35 pm - 6:22 pmUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
28h 47m2 stops Toronto Pearson Intl Vancouver Intl
$715Air Canada
Sun, Jan 10 - Wed, Jan 20
Air Canada Logo
7:45 am - 4:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
28h 55m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 pm - 6:22 pmUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
28h 47m2 stops Toronto Pearson Intl Vancouver Intl
$715Air Canada
Thu, Oct 29 - Mon, Nov 2
Air Canada Logo
7:45 am - 3:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
28h 55m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 pm - 8:59 pmUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
31h 24m1 stop Toronto Pearson Intl
$722Air Canada
Thu, Oct 29 - Mon, Nov 2
Air Canada Logo
7:45 am - 3:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
28h 55m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 pm - 9:32 amUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
43h 57m2 stops Toronto Pearson Intl Vancouver Intl
$722Air Canada
Thu, Oct 29 - Mon, Nov 2
Air Canada Logo
8:40 am - 3:40 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
28h 00m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
5:35 pm - 9:57 pmUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
32h 22m2 stops Toronto Pearson Intl Vancouver Intl
$722Air Canada
Mon, Jan 11 - Thu, Jan 21
American Airlines Logo
8:59 pm - 3:34 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
14h 35m1 stop Miami
American Airlines Logo
3:30 pm - 12:54 amUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
13h 24m1 stop Miami
$790American Airlines
Tue, Jan 12 - Fri, Jan 22
American Airlines Logo
8:59 pm - 3:34 pmSEA  Seattle/Tacoma Intl-UVF Castries Hewanorra
14h 35m1 stop Miami
American Airlines Logo
3:30 pm - 12:54 amUVF  Castries Hewanorra-SEA Seattle/Tacoma Intl
13h 24m1 stop Miami
$790American Airlines
Booking Insights

Price, demand and travel trends for Seattle to Castries flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Castries with more confidence.

How much is a round-trip flight from Seattle to Castries?

Round-trip flights from Seattle to Castries start at $713. Prices are below average for this route right now, with typical round-trip fares ranging from $839 to $1,573. The lowest price found in the past 5 days was $713 on Air Canada.

What's the cheapest day of the week to fly from Seattle to Castries?

Thursday is the cheapest day of the week to fly from Seattle to Castries, it is 29% cheaper than the average day. Saturday is the most expensive day with flight prices 118% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Seattle to Castries flights

Low season

August

Cheapest flight

$482
Flight from Seattle to Castries

When to book flights from Seattle to Castries

Are your dates flexible? Find out the best times to travel from Seattle to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Castries flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Seattle to Castries?

    Flights from Seattle to Castries usually depart from Seattle/Tacoma Intl (SEA) and arrive at Castries Hewanorra (UVF).

  • What cabin classes can I book on flights from Seattle to Castries?

    Only Economy Class is available on flights from Seattle to Castries.

  • Which airports do connecting flights from Seattle to Castries pass through?

    One-stop flights from Seattle to Castries most commonly connect through:

    • Miami (MIA) - 55% of one-stop connections
    • Charlotte Douglas (CLT) - 24% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 21% of one-stop connections

    Miami (MIA) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Castries?

    Yes. Being flexible with your travel dates can save you up to 68% on the Seattle to Castries route. Thursday is the cheapest departure day at $797 round-trip on average, while Saturday is the most expensive at $2,452, a difference of $1,655. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Seattle to Castries?

    A nonstop flight from Seattle to Castries takes 0h 00m, covering 4,189 miles.

  • Do I need a passport to fly from Seattle to Castries?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Seattle to Castries changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $713 to $3,887. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Seattle to Castries looking right now?

    One-way fares from Seattle to Castries are currently higher than usual. Average one-way flight prices are about $482, which is 15% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from Seattle to Castries?

    Flying via Miami (MIA) gives the shortest average 1-stop total travel time at 12h 57m, compared with 17h 25m via Atlanta Hartsfield-Jackson (ATL) and 18h 02m via Charlotte Douglas (CLT).

  • What is the time difference between Seattle and Castries?

    Castries is 3 hours ahead of Seattle (Atlantic Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Castries Hewanorra Airport (UVF)?

    Castries Hewanorra Airport (UVF) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
    • Drive A Matic
    • Sixt
    • Final Rentals
    • Ace
    • Hertz

  • How much should I expect to pay for a Seattle to Castries flight?

    Round-trip flights from Seattle to Castries range from $839 to $1,573, with an average of $1,120 over the past 12 months. Anything below $839 counts as a good deal.

Your guide to booking Seattle to Castries flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Saturday. On this route, Thursday flights average $797 - about $1,655 less than Saturday (67% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Castries trip for January. Fares historically average $752 round-trip in that month - typically $1,294 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from Seattle to Castries

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