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Saint Thomas Island

$677+ Cheap flights from Kalispell (FCA) to Saint Thomas Island (STT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — STT
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap flight deals from Kalispell to Saint Thomas Island

Cheapest flights from Kalispell to Saint Thomas Island
Explore the most affordable flight options available from Kalispell to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Tue 4/284:45 pm
STT
-
FCA
2 stops30h 42m
United Airlines
Deal found 2/15$677
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Thu 4/304:45 pm
STT
-
FCA
2 stops31h 12m
United Airlines
Deal found 2/15$686
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Tue 4/284:45 pm
STT
-
FCA
2 stops30h 42m
United Airlines
Deal found 2/15$729
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/192:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Tue 4/284:45 pm
STT
-
FCA
2 stops30h 42m
United Airlines
Deal found 2/15$737
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Thu 4/304:45 pm
STT
-
FCA
2 stops31h 12m
United Airlines
Deal found 2/15$738
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/192:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Thu 4/304:45 pm
STT
-
FCA
2 stops31h 12m
United Airlines
Deal found 2/15$746
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Wed 4/294:45 pm
STT
-
FCA
2 stops31h 12m
United Airlines
Deal found 2/15$799
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/53:53 pm
FCA
-
STT
2 stops18h 47m
American Airlines
Sat 7/114:48 pm
STT
-
FCA
2 stops21h 42m
American Airlines
Deal found 2/15$830
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:33 pm
FCA
-
STT
2 stops19h 47m
United Airlines
Wed 4/294:45 pm
STT
-
FCA
2 stops31h 12m
United Airlines
Deal found 2/15$851

Find flight deals from Kalispell to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$677
(United Airlines)
Provider with most accurate pricing for Kalispell Glacier Park-Saint Thomas Island Cyril E King flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kalispell Glacier Park-Saint Thomas Island Cyril E King flights.
Search Deals
From Kalispell Glacier Park to Saint Thomas Island Cyril E King
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell to Saint Thomas Island 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, Cheapflights users made 2,558,603 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from Kalispell to Saint Thomas Island that are best for you.

Fly from

Kalispell

Fly to

Saint Thomas Island

Route

Depart

Return

Price

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Mon 4/20

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Tue 4/28

4:45 pm-9:27 pm

2 stops30h 42m

$677

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Mon 4/20

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Thu 4/30

4:45 pm-9:57 pm

2 stops31h 12m

$686

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Sun 4/19

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Tue 4/28

4:45 pm-9:27 pm

2 stops30h 42m

$737

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 4/21

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Thu 4/30

4:45 pm-9:57 pm

2 stops31h 12m

$738

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Sun 4/19

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Thu 4/30

4:45 pm-9:57 pm

2 stops31h 12m

$746

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Mon 4/20

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Wed 4/29

4:45 pm-9:57 pm

2 stops31h 12m

$799

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Sat 7/18

4:48 pm-3:50 pm

2 stops21h 02m

Saint Thomas Island Cyril E King

Sat 7/25

4:48 pm-1:32 pm

2 stops22h 44m

$830

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Sun 7/5

3:53 pm-12:40 pm

2 stops18h 47m

Saint Thomas Island Cyril E King

Sat 7/11

4:48 pm-12:30 pm

2 stops21h 42m

$830

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 4/21

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Wed 4/29

4:45 pm-9:57 pm

2 stops31h 12m

$851

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

  • Most accurate provider: When it comes to deals on Kalispell-Saint Thomas Island flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kalispell-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kalispell-Saint Thomas Island flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kalispell-Saint Thomas Island flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kalispell-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kalispell to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Kalispell with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Kalispell to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Kalispell to Saint Thomas Island?

    Airlines like United Airlines fly from Kalispell to Saint Thomas Island in about 19h 47m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3432 mi.

  • Can I find deals for flights from Kalispell to Saint Thomas Island that include hotel bookings?

    Yes. In addition to deals on Kalispell to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kalispell to Saint Thomas Island?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kalispell to Saint Thomas Island.

  • Can I find deals for business class flights from Kalispell to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from Kalispell to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

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Alternative routes for Kalispell to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.
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