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Key West

$519+ Cheap flights from Montana to Key West (EYW)

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — EYW
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from Montana to Key West

Keep the following information in mind while searching for Montana to Key West flight deals. Data was last updated September 14, 2025.

Round-trip from

$519
(Delta)

Popular in

February

Cheapest in

October

Average price

$589
From Montana to Key West
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Montana to Key West

Cheapest flights from Montana to Key West
Explore the most affordable flight options available from Montana to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:28 pmBZN - EYW
2 stops15h 27mDelta
Tue 10/71:57 pmEYW - BZN
2 stops11h 40mDelta
Deal found 9/11$519
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 12/127:00 amMSO - EYW
1 stop7h 07mAmerican Airlines
Mon 12/157:00 amEYW - MSO
2 stops15h 02mAmerican Airlines
Deal found 9/13$679
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Sat 9/274:19 pmBZN - EYW
2 stops20h 10mUnited Airlines
Wed 10/13:12 pmEYW - BZN
2 stops31h 55mUnited Airlines
Deal found 9/12$682
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:30 amMSO - EYW
2 stops9h 42mDelta
Wed 10/12:00 pmEYW - MSO
2 stops12h 18mDelta
Deal found 9/13$691
This American Airlines deal was found by Cheapflights users on 9/12. 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 9/281:39 pmBZN - EYW
2 stops19h 34mAmerican Airlines
Sat 10/45:08 pmEYW - BZN
2 stops20h 38mAmerican Airlines
Deal found 9/12$732
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/2712:31 pmMSO - EYW
2 stops23h 58mUnited Airlines
Wed 10/13:12 pmEYW - MSO
2 stops24h 15mUnited Airlines
Deal found 9/11$771
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 12/247:06 amMSO - EYW
2 stops13h 38mAmerican Airlines
Tue 12/3011:47 amEYW - MSO
2 stops11h 37mAmerican Airlines
Deal found 9/13$774
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:30 amBZN - EYW
2 stops9h 45mDelta
Wed 10/17:00 amEYW - BZN
1 stop8h 09mDelta
Deal found 9/12$791
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 12/1010:00 amBTM - EYW
2 stops27h 09mUnited Airlines
Sat 12/133:02 pmEYW - BTM
2 stops33h 27mUnited Airlines
Deal found 9/11$821
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 12/257:06 amMSO - EYW
2 stops13h 38mAmerican Airlines
Tue 12/3011:47 amEYW - MSO
2 stops11h 37mAmerican Airlines
Deal found 9/13$831
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 12/257:06 amMSO - EYW
1 stop7h 24mAmerican Airlines
Mon 12/291:15 pmEYW - MSO
1 stop25h 33mAmerican Airlines
Deal found 9/13$836
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:20 amMSO - EYW
2 stops13h 36mDelta
Mon 12/291:10 pmEYW - MSO
2 stops9h 33mDelta
Deal found 9/13$866

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to Key West 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 September 14, 2025.
Use the filters below to find and compare flights from Montana to Key West that are best for you.

Fly from

Montana

Fly to

Key West

Route

Depart

Return

Price

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Sat 10/4

5:28 pm-10:55 am

2 stops15h 27m

Key West

Tue 10/7

1:57 pm-11:37 pm

2 stops11h 40m

$519

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Sat 9/27

4:19 pm-2:29 pm

2 stops20h 10m

Key West

Wed 10/1

3:12 pm-9:07 pm

2 stops31h 55m

$682

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Fri 12/12

7:00 am-10:18 pm

2 stops13h 18m

Key West

Mon 12/15

7:00 am-8:02 pm

2 stops15h 02m

$684

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Sat 9/27

5:30 am-5:12 pm

2 stops9h 42m

Key West

Wed 10/1

2:00 pm-12:18 am

2 stops12h 18m

$691

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Sun 9/28

1:39 pm-11:13 am

2 stops19h 34m

Key West

Sat 10/4

5:08 pm-11:46 am

2 stops20h 38m

$732

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Sat 9/27

12:31 pm-2:29 pm

2 stops23h 58m

Key West

Wed 10/1

3:12 pm-1:27 pm

2 stops24h 15m

$771

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Sat 9/27

5:30 am-5:15 pm

2 stops9h 45m

Key West

Wed 10/1

7:00 am-1:09 pm

1 stop8h 09m

$791

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Wed 12/10

10:00 am-3:09 pm

2 stops27h 09m

Key West

Sat 12/13

3:02 pm-10:29 pm

2 stops33h 27m

$821

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Thu 12/25

7:06 am-4:30 pm

1 stop7h 24m

Key West

Tue 12/30

11:47 am-9:24 pm

2 stops11h 37m

$826

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Thu 12/25

7:06 am-4:30 pm

1 stop7h 24m

Key West

Mon 12/29

1:15 pm-12:48 pm

1 stop25h 33m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 15 results
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Best time to book a flight from Montana to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Montana 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.

Cheapflights Insights

Everything you need to know about your flight from Montana to Key West

What is the cheapest month to book a flight from Montana to Key West?

Currently, August is the cheapest month in which you can book a flight from Montana to Key West (average of $328). Flying from Montana to Key West in March is currently the most expensive (average of $491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Montana to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Key West from Montana?

    Most people fly into Key West (EYW) if they book a flight to Key West from Montana. Key West is conveniently located just 2.6 mi from Key West’s city center.

  • How long is the flight from Montana to Key West?

    Delta, American Airlines, and United Airlines can get you from Montana to Key West in just under 13h 18m. Your travel time can differ by up to 10h 40m. The distance from Montana to Key West is about 2351 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Montana to Key West?

    While some choose either Missoula Johnson-Bell Field - Key West or Butte Silver Bow Co - Key West, Bozeman Gallatin Field - Key West is the most popular route from Montana to Key West.

  • Can I find deals for flights from Montana to Key West that include hotel bookings?

    Yes. In addition to deals on Montana to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Key West.

  • Can I find deals for business class flights from Montana to Key West?

    Yes. Cheapflights offers flight deals from Montana to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montana to Key West?

    Currently, August is the cheapest month in which you can book a flight from Montana to Key West (average of $328). Flying from Montana to Key West in March is currently the most expensive (average of $491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Montana to Key West

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Montana to Key West

Discover the top 2 airlines that operate flights from Montana to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$290Average$764FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$578FlexibilityNo cancel feeOn-time71%

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