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Cheap flights from Idaho to Key West from $379

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Key West departing on 9/15. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 4:54 pm
GEG
-
EYW
7h 54m
1 stop
American Airlines Logo
2:39 pm - 8:55 pm
EYW
-
GEG
9h 16m
1 stop
$399American Airlines
Sat, Oct 31 - Tue, Nov 10
Delta Logo
5:30 am - 7:51 pm
BOI
-
EYW
12h 21m
2 stops
Delta Logo
7:40 am - 1:26 pm
EYW
-
BOI
7h 46m
1 stop
$418Delta
Sat, Oct 24 - Wed, Nov 4
American Airlines Logo
5:19 pm - 9:44 am
BOI
-
EYW
14h 25m
2 stops
American Airlines Logo
10:15 am - 10:40 pm
EYW
-
BOI
14h 25m
2 stops
$423American Airlines
Sat, Aug 8 - Fri, Aug 14
American Airlines Logo
6:00 am - 4:54 pm
GEG
-
EYW
7h 54m
1 stop
American Airlines Logo
2:39 pm - 8:55 pm
EYW
-
GEG
9h 16m
1 stop
$444American Airlines
Tue, Oct 27 - Mon, Nov 2
Delta Logo
5:38 pm - 10:48 am
GEG
-
EYW
14h 10m
2 stops
Delta Logo
2:00 pm - 11:42 pm
EYW
-
GEG
12h 42m
2 stops
$454Delta
Tue, Oct 27 - Mon, Nov 2
American Airlines Logo
6:00 am - 4:54 pm
GEG
-
EYW
7h 54m
1 stop
American Airlines Logo
1:45 pm - 11:09 pm
EYW
-
GEG
12h 24m
2 stops
$462American Airlines
Sat, Oct 31 - Tue, Nov 10
Delta Logo
5:30 am - 7:51 pm
BOI
-
EYW
12h 21m
2 stops
Delta Logo
6:11 pm - 2:56 pm
EYW
-
BOI
22h 45m
2 stops
$465Delta
Sat, Oct 24 - Tue, Nov 3
United Airlines Logo
12:55 pm - 4:22 pm
SUN
-
EYW
25h 27m
2 stops
United Airlines Logo
6:20 pm - 12:12 pm
EYW
-
SUN
19h 52m
2 stops
$877United Airlines
Fri, Jan 8 - Tue, Jan 12
United Airlines Logo
2:29 pm - 3:06 pm
SUN
-
EYW
22h 37m
3 stops
United Airlines Logo
6:20 pm - 12:12 pm
EYW
-
SUN
19h 52m
2 stops
$879United Airlines
Fri, Jan 8 - Tue, Jan 12
United Airlines Logo
12:55 pm - 4:22 pm
SUN
-
EYW
25h 27m
2 stops
United Airlines Logo
4:05 pm - 9:11 pm
EYW
-
SUN
31h 06m
2 stops
$890United Airlines
Fri, Jan 8 - Tue, Jan 12

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Delta flights from Idaho to Key West

Our best Delta deals on Idaho to Key West flight tickets
Delta
Oct 24
BOI5:30 amBoise Air Term. Gowen Fld
12h 21m
2 stops
EYW7:51 pmKey West
Nov 4
EYW7:40 amKey West
7h 46m
1 stop
BOI1:26 pmBoise Air Term. Gowen Fld
$418
Delta
Oct 27
GEG5:38 pmSpokane
14h 10m
2 stops
EYW10:48 amKey West
Nov 2
EYW2:00 pmKey West
12h 42m
2 stops
GEG11:42 pmSpokane
$454
Delta
Oct 24
BOI5:30 amBoise Air Term. Gowen Fld
12h 21m
2 stops
EYW7:51 pmKey West
Nov 3
EYW6:11 pmKey West
22h 45m
2 stops
BOI2:56 pmBoise Air Term. Gowen Fld
$465

United Airlines flights from Idaho to Key West

Our best United Airlines deals on Idaho to Key West flight tickets
United Airlines
Dec 12
GEG7:02 amSpokane
25h 49m
2 stops
EYW11:51 amKey West
Dec 15
EYW4:05 pmKey West
32h 04m
2 stops
GEG9:09 pmSpokane
$703
United Airlines
Dec 12
GEG7:02 amSpokane
25h 49m
2 stops
EYW11:51 amKey West
Dec 15
EYW4:05 pmKey West
26h 14m
2 stops
GEG3:19 pmSpokane
$735
United Airlines
Oct 24
BOI8:15 amBoise Air Term. Gowen Fld
29h 01m
2 stops
EYW3:16 pmKey West
Nov 4
EYW2:55 pmKey West
28h 04m
3 stops
BOI4:59 pmBoise Air Term. Gowen Fld
$778

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 July 12, 2026.
Use the filters below to find and compare flights from Idaho to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Sat 10/31

6:00 am-4:54 pm

1 stop7h 54m

Key West

Tue 11/10

2:39 pm-8:55 pm

1 stop9h 16m

$399

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Sat 10/24

5:30 am-7:51 pm

2 stops12h 21m

Key West

Wed 11/4

7:40 am-1:26 pm

1 stop7h 46m

$418

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Sat 8/8

5:19 pm-9:44 am

2 stops14h 25m

Key West

Fri 8/14

10:15 am-10:40 pm

2 stops14h 25m

$423

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Tue 10/27

6:00 am-4:54 pm

1 stop7h 54m

Key West

Mon 11/2

2:39 pm-8:55 pm

1 stop9h 16m

$444

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Tue 10/27

5:38 pm-10:48 am

2 stops14h 10m

Key West

Mon 11/2

2:00 pm-11:42 pm

2 stops12h 42m

$454

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Sat 10/31

6:00 am-4:54 pm

1 stop7h 54m

Key West

Tue 11/10

1:45 pm-11:09 pm

2 stops12h 24m

$462

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Sat 10/24

5:30 am-7:51 pm

2 stops12h 21m

Key West

Tue 11/3

6:11 pm-2:56 pm

2 stops22h 45m

$465

HaileyKey West

SUN - EYW

SUNEYW

Hailey Sun Valley-Friedman

Fri 1/8

12:55 pm-4:22 pm

2 stops25h 27m

Key West

Tue 1/12

6:20 pm-12:12 pm

2 stops19h 52m

$877

HaileyKey West

SUN - EYW

SUNEYW

Hailey Sun Valley-Friedman

Fri 1/8

2:29 pm-3:06 pm

3 stops22h 37m

Key West

Tue 1/12

6:20 pm-12:12 pm

2 stops19h 52m

$879

HaileyKey West

SUN - EYW

SUNEYW

Hailey Sun Valley-Friedman

Fri 1/8

12:55 pm-4:22 pm

2 stops25h 27m

Key West

Tue 1/12

4:05 pm-9:11 pm

2 stops31h 06m

$890

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
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See travel insights to Key West from

How to get the cheapest flight ticket from Idaho to Key West

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 airline that flies from Idaho to Key West?

Delta is the most popular carrier operating from Idaho to Key West

Cheap Idaho to Key West flight deals and tips

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

Fastest flight time

8h 58m

Direct flights

None
The fastest flight from Idaho to Key West takes 8h 58m
There are no direct flights from Idaho to Key West. There are no popular flight routes from Idaho to Key West.
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Frequently asked questions about flying from Idaho to Key West

  • When did momondo last update prices for flights from Idaho to Key West Airport?

    Prices for flights from Idaho to Key West Airport refresh daily.

  • How many operators does momondo search for flights from Idaho to Key West Airport?

  • How old do you have to be to fly from Idaho to Key West 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 Idaho to Key West Airport.

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

    The required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to Key West

Compare and see reviews for airlines that fly from Idaho to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $467Free CancellationRating
7.1
11,809 reviews
Search American Airlines flights

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 Idaho to Key West?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to Key West. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Idaho to Key West on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Key West from Idaho. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Key West from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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