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Key West

$319+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — EYW
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$319
(Delta)

Popular in

February

Cheapest in

September

Average price

$902
From Montana to Key West
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 1, 2025.

This Delta deal was found by Cheapflights users on 6/30. 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 8/236:24 pmMSO - EYW
2 stops14h 32mDelta
Tue 8/267:00 amEYW - MSO
2 stops12h 44mDelta
Deal found 6/30$319
This Delta deal was found by Cheapflights users on 6/29. 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 8/236:05 amBZN - EYW
2 stops12h 07mDelta
Tue 8/267:00 amEYW - BZN
1 stop8h 08mDelta
Deal found 6/29$364
This American Airlines deal was found by Cheapflights users on 6/30. 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 7/167:40 amBZN - EYW
2 stops9h 41mAmerican Airlines
Mon 7/217:51 pmEYW - BZN
2 stops17h 49mAmerican Airlines
Deal found 6/30$489
This Delta deal was found by Cheapflights users on 6/29. 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 8/236:14 pmBTM - EYW
2 stops14h 42mDelta
Tue 8/267:00 amEYW - BTM
2 stops12h 06mDelta
Deal found 6/29$524
This American Airlines deal was found by Cheapflights users on 6/30. 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 11/147:00 amMSO - EYW
1 stop7h 16mAmerican Airlines
Sun 11/238:12 amEYW - MSO
2 stops13h 17mAmerican Airlines
Deal found 6/30$601
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/111:14 pmBZN - EYW
1 stop22h 12mUnited Airlines
Mon 8/182:22 pmEYW - BZN
1 stop21h 15mUnited Airlines
Deal found 7/1$818

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 July 1, 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

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Sat 8/23

6:24 pm-10:56 am

2 stops14h 32m

Key West

Tue 8/26

7:00 am-5:44 pm

2 stops12h 44m

$319

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Sat 8/23

6:05 am-8:12 pm

2 stops12h 07m

Key West

Tue 8/26

7:00 am-1:08 pm

1 stop8h 08m

$364

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Wed 7/16

7:40 am-7:21 pm

2 stops9h 41m

Key West

Mon 7/21

7:51 pm-11:40 am

2 stops17h 49m

$489

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Sat 8/23

6:14 pm-10:56 am

2 stops14h 42m

Key West

Tue 8/26

7:00 am-5:06 pm

2 stops12h 06m

$524

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Fri 11/14

7:00 am-4:16 pm

1 stop7h 16m

Key West

Sun 11/23

8:12 am-7:29 pm

2 stops13h 17m

$601

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Mon 8/11

1:14 pm-1:26 pm

1 stop22h 12m

Key West

Mon 8/18

2:22 pm-9:37 am

1 stop21h 15m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 $493). 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.

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated July 1, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Montana to Key West by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
United Airlines
7.4
Good
8,858 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

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.

  • 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 $493). 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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Top 3 airlines flying from Montana to Key West

Discover the top 3 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$290Average$773FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$319Average$596FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$541Average$700FlexibilityNo cancel feeOn-time69%

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