HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key West

$505+ 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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — EYW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montana to Key West with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$505
(American Airlines)

Popular in

February

Cheapest in

September

Average price

$1,185
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 June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/197:03 amMSO - EYW
2 stops10h 18mAmerican Airlines
Wed 7/232:31 pmEYW - MSO
1 stop9h 17mAmerican Airlines
Deal found 6/10$505
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/911:07 amBZN - EYW
2 stops22h 34mMultiple Airlines
Wed 7/1610:02 amEYW - BZN
3 stops29h 44mMultiple Airlines
Deal found 6/10$508
This American Airlines deal was found by Cheapflights users on 6/9. 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
1 stop6h 32mAmerican Airlines
Mon 7/217:51 pmEYW - BZN
2 stops18h 53mAmerican Airlines
Deal found 6/9$513
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/194:23 pmMSO - EYW
2 stops19h 37mUnited Airlines
Wed 7/238:45 amEYW - MSO
2 stops14h 38mUnited Airlines
Deal found 6/11$531
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/162:41 pmBZN - EYW
2 stops15h 19mUnited Airlines
Mon 7/216:45 pmEYW - BZN
2 stops28h 47mUnited Airlines
Deal found 6/9$537
This Delta deal was found by Cheapflights users on 6/10. 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 11/156:00 amBZN - EYW
2 stops11h 44mDelta
Sat 11/227:00 amEYW - BZN
1 stop8h 16mDelta
Deal found 6/10$639

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 June 12, 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 7/19

7:03 am-7:21 pm

2 stops10h 18m

Key West

Wed 7/23

2:31 pm-9:48 pm

1 stop9h 17m

$505

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Wed 7/9

11:07 am-11:41 am

2 stops22h 34m

Key West

Wed 7/16

10:02 am-1:46 pm

3 stops29h 44m

$508

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Wed 7/16

7:40 am-4:12 pm

1 stop6h 32m

Key West

Mon 7/21

7:51 pm-12:44 pm

2 stops18h 53m

$513

MissoulaKey West

MSO - EYW

MSOEYW

Missoula Johnson-Bell Field

Sat 7/19

4:23 pm-2:00 pm

2 stops19h 37m

Key West

Wed 7/23

8:45 am-9:23 pm

2 stops14h 38m

$531

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Wed 7/16

2:41 pm-8:00 am

2 stops15h 19m

Key West

Mon 7/21

6:45 pm-9:32 pm

2 stops28h 47m

$537

BozemanKey West

BZN - EYW

BZNEYW

Bozeman Gallatin Field

Sat 11/15

6:00 am-7:44 pm

2 stops11h 44m

Key West

Sat 11/22

7:00 am-1:16 pm

1 stop8h 16m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 June 12, 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. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montana to Key West

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
LaGuardia to Miami flights
Newark to Miami flights
LaGuardia to Fort Lauderdale flights
Newark to Orlando flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Orlando flights
Los Angeles to Miami flights
Los Angeles to Orlando flights
Dallas/Fort Worth to Miami flights
John F Kennedy Intl to West Palm Beach flights
Philadelphia to Orlando flights
Baltimore to Fort Lauderdale flights
Baltimore to Miami flights
Dallas/Fort Worth to Orlando flights
O'Hare Intl to Orlando flights
Atlanta to Miami flights
Dulles Intl to Miami flights
Los Angeles to Fort Lauderdale flights
Dallas/Fort Worth to Fort Lauderdale flights
O'Hare Intl to Fort Lauderdale flights
John F Kennedy Intl to Tampa flights
Newark to Tampa flights
Boston to Orlando flights
Reagan-National to Miami flights
Dulles Intl to Orlando flights
Reagan-National to Orlando flights
O'Hare Intl to Miami flights
Philadelphia to Fort Lauderdale flights
Hobby to Miami flights
Atlanta to Fort Lauderdale flights
Philadelphia to Miami flights
Boston to Miami flights
Boston to Fort Lauderdale flights
Baltimore to Orlando flights
LaGuardia to West Palm Beach flights
LaGuardia to Tampa flights
Dulles Intl to Fort Lauderdale flights
Denver to Orlando flights
Providence to Orlando flights
Hobby to Orlando flights
Raleigh to Miami flights
Cleveland to Orlando flights
San Francisco to Miami flights
Newark to West Palm Beach flights
O'Hare Intl to Tampa flights
Islip to Orlando flights
George Bush Intcntl to Orlando flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$290Average$773FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$319Average$596FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$541Average$700FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.