Cheap flights from Montana to Saint Thomas Island from $393

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Saint Thomas Island departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Montana to Saint Thomas Island

Cheap round-trip flights

American Airlines Logo
7:00 am - 3:15 pmMSO-STT
29h 15m2 stops
American Airlines Logo
6:17 pm - 7:55 pmSTT-MSO
28h 38m2 stops
$858American Airlines
Find Deal
Sun, Nov 16 - Mon, Nov 24
American Airlines Logo
1:51 pm - 12:50 pmMSO-STT
20h 59m2 stops
American Airlines Logo
1:50 pm - 1:01 pmSTT-MSO
25h 11m2 stops
$1,020American Airlines
Find Deal
Sat, Aug 23 - Wed, Aug 27
United Airlines Logo
6:25 am - 1:12 pmMSO-STT
27h 47m3 stops
United Airlines Logo
2:15 pm - 9:47 pmSTT-MSO
34h 32m2 stops
$1,078United Airlines
Find Deal
Sun, Nov 16 - Mon, Nov 24
American Airlines Logo
2:37 pm - 4:00 pmMSO-STT
23h 23m2 stops
American Airlines Logo
11:40 am - 3:23 pmSTT-MSO
29h 43m2 stops
$1,094American Airlines
Find Deal
Sat, Aug 23 - Wed, Aug 27
United Airlines Logo
7:00 am - 4:18 pmFCA-STT
30h 18m2 stops
United Airlines Logo
1:05 pm - 3:02 pmSTT-FCA
28h 57m2 stops
$1,131United Airlines
Find Deal
Sun, Feb 1 - Wed, Feb 11
American Airlines Logo
1:05 pm - 12:20 pmMSO-STT
20h 15m2 stops
American Airlines Logo
6:35 pm - 12:25 pmSTT-MSO
20h 50m2 stops
$1,882American Airlines
Find Deal
Thu, Dec 25 - Sat, Jan 3
American Airlines Logo
1:05 pm - 12:20 pmMSO-STT
20h 15m2 stops
American Airlines Logo
2:25 pm - 9:31 pmSTT-MSO
10h 06m1 stop
$1,935American Airlines
Find Deal
Thu, Dec 25 - Sat, Jan 3
American Airlines Logo
1:05 pm - 12:20 pmMSO-STT
20h 15m2 stops
American Airlines Logo
4:40 pm - 12:25 pmSTT-MSO
22h 45m2 stops
$2,089American Airlines
Find Deal
Thu, Dec 25 - Sat, Jan 3
American Airlines Logo
1:05 pm - 11:40 amMSO-STT
19h 35m2 stops
American Airlines Logo
4:30 pm - 12:25 pmSTT-MSO
22h 55m2 stops
$2,291American Airlines
Find Deal
Thu, Dec 25 - Sat, Jan 3
American Airlines Logo
1:05 pm - 2:40 pmMSO-STT
22h 35m1 stop
American Airlines Logo
2:25 pm - 9:31 pmSTT-MSO
10h 06m1 stop
$2,529American Airlines
Find Deal
Thu, Dec 25 - Sat, Jan 3

American Airlines flights from Montana to Saint Thomas Island

Our best American Airlines deals on Montana to Saint Thomas Island flight tickets
American Airlines
Nov 16
MSO7:00 amMissoula Johnson-Bell Field
29h 15m
2 stops
STT3:15 pmSaint Thomas Island Cyril E King
Nov 24
STT6:17 pmSaint Thomas Island Cyril E King
28h 38m
2 stops
MSO7:55 pmMissoula Johnson-Bell Field
American Airlines
Aug 23
MSO1:51 pmMissoula Johnson-Bell Field
20h 59m
2 stops
STT12:50 pmSaint Thomas Island Cyril E King
Aug 27
STT1:50 pmSaint Thomas Island Cyril E King
25h 11m
2 stops
MSO1:01 pmMissoula Johnson-Bell Field
American Airlines
Aug 23
MSO2:37 pmMissoula Johnson-Bell Field
23h 23m
2 stops
STT4:00 pmSaint Thomas Island Cyril E King
Aug 27
STT11:40 amSaint Thomas Island Cyril E King
29h 43m
2 stops
MSO3:23 pmMissoula Johnson-Bell Field

United Airlines flights from Montana to Saint Thomas Island

Our best United Airlines deals on Montana to Saint Thomas Island flight tickets
United Airlines
Nov 16
MSO6:25 amMissoula Johnson-Bell Field
27h 47m
3 stops
STT1:12 pmSaint Thomas Island Cyril E King
Nov 24
STT2:15 pmSaint Thomas Island Cyril E King
34h 32m
2 stops
MSO9:47 pmMissoula Johnson-Bell Field
United Airlines
Feb 1
FCA7:00 amKalispell Glacier Park
30h 18m
2 stops
STT4:18 pmSaint Thomas Island Cyril E King
Feb 11
STT1:05 pmSaint Thomas Island Cyril E King
28h 57m
2 stops
FCA3:02 pmKalispell Glacier Park
United Airlines
Dec 25
MSO2:27 pmMissoula Johnson-Bell Field
45h 03m
2 stops
STT2:30 pmSaint Thomas Island Cyril E King
Jan 3
STT3:05 pmSaint Thomas Island Cyril E King
33h 29m
3 stops
MSO9:34 pmMissoula Johnson-Bell Field

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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, momondo users made 832,500 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Montana to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Sun 11/16

7:00 am-3:15 pm

2 stops29h 15m

Saint Thomas Island Cyril E King

Mon 11/24

6:17 pm-7:55 pm

2 stops28h 38m

$858

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Sat 8/23

1:51 pm-12:50 pm

2 stops20h 59m

Saint Thomas Island Cyril E King

Wed 8/27

1:50 pm-1:01 pm

2 stops25h 11m

$1,020

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Sun 11/16

6:25 am-1:12 pm

3 stops27h 47m

Saint Thomas Island Cyril E King

Mon 11/24

2:15 pm-9:47 pm

2 stops34h 32m

$1,078

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Sat 8/23

2:37 pm-4:00 pm

2 stops23h 23m

Saint Thomas Island Cyril E King

Wed 8/27

11:40 am-3:23 pm

2 stops29h 43m

$1,094

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Sun 2/1

7:00 am-4:18 pm

2 stops30h 18m

Saint Thomas Island Cyril E King

Wed 2/11

1:05 pm-3:02 pm

2 stops28h 57m

$1,131

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Thu 12/25

1:05 pm-12:20 pm

2 stops20h 15m

Saint Thomas Island Cyril E King

Sat 1/3

6:35 pm-12:25 pm

2 stops20h 50m

$1,882

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Thu 12/25

1:05 pm-12:20 pm

2 stops20h 15m

Saint Thomas Island Cyril E King

Sat 1/3

2:25 pm-9:31 pm

1 stop10h 06m

$1,935

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Thu 12/25

1:05 pm-12:20 pm

2 stops20h 15m

Saint Thomas Island Cyril E King

Sat 1/3

4:40 pm-12:25 pm

2 stops22h 45m

$2,089

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Thu 12/25

1:05 pm-11:40 am

2 stops19h 35m

Saint Thomas Island Cyril E King

Sat 1/3

4:30 pm-12:25 pm

2 stops22h 55m

$2,291

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Thu 12/25

1:05 pm-2:40 pm

1 stop22h 35m

Saint Thomas Island Cyril E King

Sat 1/3

2:25 pm-9:31 pm

1 stop10h 06m

$2,529

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Montana to Saint Thomas Island

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 cheapest day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from Montana is on a Monday. momondo users have found tickets for Monday departures for as low as $589. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Montana to Saint Thomas Island for around $875.

What is the cheapest time of day to depart on your flight to Saint Thomas Island?

The cheapest time of day to fly to Saint Thomas Island is at noon when flights can be purchased for as low as $627. Flights to Saint Thomas Island are more costly in the morning, with an average ticket price of $881. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Montana to Saint Thomas Island flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Saint Thomas Island

Best Price Found

$393

Fastest flight time

18h 31m

Direct flights

None

Airports in Saint Thomas Island

1 airport
The best one-way flight to Saint Thomas Island from Montana in the past 72 hours is $393. The best round-trip flight deal from Montana to Saint Thomas Island found on momondo in the last 72 hours is $858.
The fastest flight from Montana to Saint Thomas Island takes 18h 31m
There are no direct flights from Montana to Saint Thomas Island. Popular non-direct routes for this connection are Missoula Johnson-Bell Field Airport - Saint Thomas Island Cyril E King Airport and Kalispell Glacier Park Airport - Saint Thomas Island Cyril E King Airport.
There is 1 airport near Saint Thomas Island: Saint Thomas Island Cyril E King (STT)
  • When did momondo last update prices for flights from Montana to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Montana to Saint Thomas Island Cyril E King Airport were last updated today.

  • How old do you have to be to fly from Montana to Saint Thomas Island Cyril E King 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 Montana to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King 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 Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to Saint Thomas Island

Compare and see reviews for airlines that fly from Montana to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $657Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $759Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights

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

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Saint Thomas Island?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Thomas Island from Montana.

Can I find flights from Montana to Saint Thomas Island with flexible booking policies on momondo?

Flights from Montana to Saint Thomas Island 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 Montana to Saint Thomas Island?

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 Saint Thomas Island from Montana.

I’m not ready to book a flight from Montana to Saint Thomas Island right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Montana to Saint Thomas Island now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Thomas Island and let you know when they change.

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1 adult
Tue 8/12
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