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Cheap flights from Butte to Key West from $637

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Butte to Key West departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:10 pm - 10:48 am
BTM
-
EYW
14h 38m
2 stops
Delta Logo
7:30 am - 5:08 pm
EYW
-
BTM
11h 38m
2 stops
$637Delta
Fri, Apr 3 - Tue, Apr 7
United Airlines Logo
9:37 am - 4:42 pm
BTM
-
EYW
29h 05m
2 stops
United Airlines Logo
3:52 pm - 10:22 pm
EYW
-
BTM
32h 30m
2 stops
$699United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
9:37 am - 3:57 pm
BTM
-
EYW
28h 20m
2 stops
United Airlines Logo
3:52 pm - 10:22 pm
EYW
-
BTM
32h 30m
2 stops
$743United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
9:37 am - 4:42 pm
BTM
-
EYW
29h 05m
2 stops
United Airlines Logo
2:35 pm - 10:22 pm
EYW
-
BTM
33h 47m
2 stops
$753United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
9:37 am - 5:39 pm
BTM
-
EYW
30h 02m
2 stops
United Airlines Logo
6:22 pm - 10:22 pm
EYW
-
BTM
30h 00m
3 stops
$880United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
9:37 am - 3:57 pm
BTM
-
EYW
28h 20m
2 stops
United Airlines Logo
6:22 pm - 10:22 pm
EYW
-
BTM
30h 00m
3 stops
$964United Airlines
Sat, Apr 25 - Wed, Apr 29
Delta Logo
6:10 pm - 10:58 am
BTM
-
EYW
14h 48m
2 stops
Delta Logo
7:00 am - 4:55 pm
EYW
-
BTM
11h 55m
2 stops
$2,156Delta
Tue, Jul 21 - Sun, Jul 26

United Airlines flights from Butte to Key West

Our best United Airlines deals on Butte to Key West flight tickets
United Airlines
Apr 25
BTM9:37 amButte Silver Bow Co
29h 05m
2 stops
EYW4:42 pmKey West
Apr 29
EYW3:52 pmKey West
32h 30m
2 stops
BTM10:22 pmButte Silver Bow Co
$699
United Airlines
Apr 25
BTM9:37 amButte Silver Bow Co
28h 20m
2 stops
EYW3:57 pmKey West
Apr 29
EYW3:52 pmKey West
32h 30m
2 stops
BTM10:22 pmButte Silver Bow Co
$743
United Airlines
Apr 25
BTM9:37 amButte Silver Bow Co
29h 05m
2 stops
EYW4:42 pmKey West
Apr 29
EYW2:35 pmKey West
33h 47m
2 stops
BTM10:22 pmButte Silver Bow Co
$753

Delta flights from Butte to Key West

Our best Delta deals on Butte to Key West flight tickets
Delta
Apr 3
BTM6:10 pmButte Silver Bow Co
14h 38m
2 stops
EYW10:48 amKey West
Apr 7
EYW7:30 amKey West
11h 38m
2 stops
BTM5:08 pmButte Silver Bow Co
$637
Delta
Jul 21
BTM6:10 pmButte Silver Bow Co
14h 48m
2 stops
EYW10:58 amKey West
Jul 26
EYW7:00 amKey West
11h 55m
2 stops
BTM4:55 pmButte Silver Bow Co
$2,156

momondo Fare Finder

 
Customize your flight search to find flights from Butte 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, momondo users made 832,500 searches. Data last updated March 20, 2026.
Use the filters below to find and compare flights from Butte to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Fri 4/3

6:10 pm-10:48 am

2 stops14h 38m

Key West

Tue 4/7

7:30 am-5:08 pm

2 stops11h 38m

$637

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Sat 4/25

9:37 am-4:42 pm

2 stops29h 05m

Key West

Wed 4/29

3:52 pm-10:22 pm

2 stops32h 30m

$699

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Sat 4/25

9:37 am-3:57 pm

2 stops28h 20m

Key West

Wed 4/29

3:52 pm-10:22 pm

2 stops32h 30m

$743

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Sat 4/25

9:37 am-4:42 pm

2 stops29h 05m

Key West

Wed 4/29

2:35 pm-10:22 pm

2 stops33h 47m

$753

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Sat 4/25

9:37 am-5:39 pm

2 stops30h 02m

Key West

Wed 4/29

6:22 pm-10:22 pm

3 stops30h 00m

$880

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Sat 4/25

9:37 am-3:57 pm

2 stops28h 20m

Key West

Wed 4/29

6:22 pm-10:22 pm

3 stops30h 00m

$964

ButteKey West

BTM - EYW

BTMEYW

Butte Silver Bow Co

Tue 7/21

6:10 pm-10:58 am

2 stops14h 48m

Key West

Sun 7/26

7:00 am-4:55 pm

2 stops11h 55m

$2,156

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Butte to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Butte to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Butte to Key West (BTM to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Butte to Key West

Fastest flight time

14h 38m

Direct flights

None
The fastest flight from Butte to Key West takes 14h 38m
There are no direct flights from Butte to Key West. There are no popular flight routes from Butte to Key West.
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  • How far is Butte Silver Bow Co to Key West by plane?

    The distance between Butte Silver Bow Co and Key West is about 2254.1 mi. A reasonable flight in good conditions will take 14h 38m.

  • When did momondo last update prices for flights from Butte Silver Bow Co Airport to Key West Airport?

    Prices for flights from Butte Silver Bow Co Airport to Key West Airport are updated daily.

  • How old do you have to be to fly from Butte Silver Bow Co Airport to Key West Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Butte Silver Bow Co Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

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

  • How do I get Price Alerts for flights from Butte to Key West?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Butte from Key West. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Butte to Key West with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Butte to Key West?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Butte to Key West for you.

Can I find flights from Butte to Key West with flexible booking policies on momondo?

momondo does allow users to show only those flights to Key West from Butte which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Butte to Key West?

momondo helps you find the best flight between Butte and Key West by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Butte to Key West right now. Can momondo alert me if prices change?

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

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1 adult
Sun 4/19
Sun 4/26
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