Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Idaho to Key West from $254

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 5/9. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 4:24 pm
GEG
-
EYW
7h 24m
1 stop
American Airlines Logo
3:56 pm - 11:14 pm
EYW
-
GEG
10h 18m
2 stops
$452American Airlines
Wed, Mar 11 - Tue, Mar 17
American Airlines Logo
6:00 am - 5:02 pm
BOI
-
EYW
9h 02m
1 stop
American Airlines Logo
2:29 pm - 10:54 pm
EYW
-
BOI
10h 25m
1 stop
$478American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
6:00 am - 5:02 pm
BOI
-
EYW
9h 02m
1 stop
American Airlines Logo
6:45 am - 5:53 pm
EYW
-
BOI
13h 08m
2 stops
$483American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
6:35 am - 6:39 pm
BOI
-
EYW
10h 04m
2 stops
American Airlines Logo
12:50 pm - 11:30 pm
EYW
-
BOI
12h 40m
2 stops
$488American Airlines
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
12:05 pm - 10:19 pm
BOI
-
EYW
8h 14m
1 stop
United Airlines Logo
7:00 am - 9:59 pm
EYW
-
BOI
16h 59m
2 stops
$494United Airlines
Sat, Mar 7 - Thu, Mar 12
Delta Logo
11:39 pm - 10:53 am
BOI
-
EYW
9h 14m
1 stop
Delta Logo
6:00 pm - 2:22 pm
EYW
-
BOI
22h 22m
2 stops
$497Delta
Sun, May 31 - Wed, Jun 10
United Airlines Logo
6:15 am - 10:19 pm
BOI
-
EYW
14h 04m
2 stops
United Airlines Logo
7:00 am - 9:59 pm
EYW
-
BOI
16h 59m
2 stops
$499United Airlines
Sat, Mar 7 - Thu, Mar 12
American Airlines Logo
6:00 am - 5:02 pm
GEG
-
EYW
8h 02m
1 stop
American Airlines Logo
2:29 pm - 8:33 pm
EYW
-
GEG
9h 04m
1 stop
$505American Airlines
Wed, Apr 29 - Wed, May 6
Delta Logo
11:39 pm - 10:53 am
BOI
-
EYW
9h 14m
1 stop
Delta Logo
6:00 pm - 12:05 pm
EYW
-
BOI
20h 05m
2 stops
$527Delta
Tue, Jun 2 - Wed, Jun 10
Delta Logo
9:18 pm - 10:53 am
BOI
-
EYW
11h 35m
2 stops
Delta Logo
6:00 pm - 12:05 pm
EYW
-
BOI
20h 05m
2 stops
$535Delta
Mon, Jun 1 - Wed, Jun 10

Delta flights from Idaho to Key West

Our best Delta deals on Idaho to Key West flight tickets
Delta
Mar 3
GEG5:00 amSpokane
11h 42m
2 stops
EYW7:42 pmKey West
Mar 10
EYW2:40 pmKey West
9h 57m
1 stop
GEG9:37 pmSpokane
$444
Delta
Mar 3
GEG5:00 amSpokane
11h 42m
2 stops
EYW7:42 pmKey West
Mar 10
EYW2:40 pmKey West
9h 57m
1 stop
GEG9:37 pmSpokane
$479
Delta
Mar 3
GEG5:00 amSpokane
11h 42m
2 stops
EYW7:42 pmKey West
Mar 10
EYW2:40 pmKey West
12h 22m
2 stops
GEG12:02 amSpokane
$484

American Airlines flights from Idaho to Key West

Our best American Airlines deals on Idaho to Key West flight tickets
American Airlines
Mar 3
BOI7:00 amBoise Air Term. Gowen Fld
7h 18m
1 stop
EYW4:18 pmKey West
Mar 10
EYW2:40 pmKey West
9h 43m
1 stop
BOI10:23 pmBoise Air Term. Gowen Fld
$439
American Airlines
Mar 3
BOI7:00 amBoise Air Term. Gowen Fld
13h 22m
2 stops
EYW10:22 pmKey West
Mar 10
EYW2:40 pmKey West
9h 43m
1 stop
BOI10:23 pmBoise Air Term. Gowen Fld
$444
American Airlines
Mar 3
GEG6:15 amSpokane
13h 07m
2 stops
EYW10:22 pmKey West
Mar 10
EYW2:40 pmKey West
11h 34m
2 stops
GEG11:14 pmSpokane
$449

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 February 23, 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

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Wed 3/11

6:00 am-4:24 pm

1 stop7h 24m

Key West

Tue 3/17

3:56 pm-11:14 pm

2 stops10h 18m

$452

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Wed 4/8

6:00 am-5:02 pm

1 stop9h 02m

Key West

Wed 4/15

2:29 pm-10:54 pm

1 stop10h 25m

$478

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Wed 4/8

6:00 am-5:02 pm

1 stop9h 02m

Key West

Wed 4/15

6:45 am-5:53 pm

2 stops13h 08m

$483

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Wed 8/12

6:35 am-6:39 pm

2 stops10h 04m

Key West

Tue 8/18

12:50 pm-11:30 pm

2 stops12h 40m

$488

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Sat 3/7

12:05 pm-10:19 pm

1 stop8h 14m

Key West

Thu 3/12

7:00 am-9:59 pm

2 stops16h 59m

$494

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Sun 5/31

11:39 pm-10:53 am

1 stop9h 14m

Key West

Wed 6/10

6:00 pm-2:22 pm

2 stops22h 22m

$497

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Sat 3/7

6:15 am-10:19 pm

2 stops14h 04m

Key West

Thu 3/12

7:00 am-9:59 pm

2 stops16h 59m

$499

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Wed 4/29

6:00 am-5:02 pm

1 stop8h 02m

Key West

Wed 5/6

2:29 pm-8:33 pm

1 stop9h 04m

$505

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Tue 6/2

11:39 pm-10:53 am

1 stop9h 14m

Key West

Wed 6/10

6:00 pm-12:05 pm

2 stops20h 05m

$527

BoiseKey West

BOI - EYW

BOIEYW

Boise Air Term. Gowen Fld

Mon 6/1

9:18 pm-10:53 am

2 stops11h 35m

Key West

Wed 6/10

6:00 pm-12:05 pm

2 stops20h 05m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

American Airlines, United Airlines, and Delta are the most popular carriers 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

7h 45m

Direct flights

None
The fastest flight from Idaho to Key West takes 7h 45m
There are no direct flights from Idaho to Key West. There are no popular flight routes from Idaho to Key West.
Search flight deals

  • 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 $308Free CancellationRating
7.2
11,339 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.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 3/25
Wed 4/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States