$358+ Cheap flights from Idaho to Key West (EYW)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — EYW
Mar 7 — Mar 141
1 adult, Economy
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Find cheap flights from Idaho 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
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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 Idaho to Key West
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Best
Last-minute
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Cheapest flights from Idaho to Key WestExplore the most affordable flight options available from Idaho to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.
Explore the most affordable flight options available from Idaho to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/37:00 am
BOI
- EYW
1 stop7h 18m
American Airlines
Tue 3/107:42 pm
EYW
- BOI
2 stops18h 18m
American Airlines
Deal found 2/4![American Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 2/5. 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 8/126:59 am
BOI
- EYW
1 stop7h 09m
American Airlines
Tue 8/182:31 pm
EYW
- BOI
1 stop9h 09m
American Airlines
Deal found 2/5![American Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 2/5. 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 3/116:00 am
GEG
- EYW
1 stop7h 24m
American Airlines
Tue 3/172:40 pm
EYW
- GEG
2 stops11h 34m
American Airlines
Deal found 2/5![American Airlines logo]()
$422
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/36:00 am
GEG
- EYW
2 stops10h 15m
American Airlines
Tue 3/102:40 pm
EYW
- GEG
2 stops11h 34m
American Airlines
Deal found 2/4![American Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 2/107:20 am
BOI
- EYW
2 stops14h 36m
American Airlines
Thu 2/192:45 pm
EYW
- BOI
1 stop9h 37m
American Airlines
Deal found 2/3![American Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Sun 7/196:44 am
BOI
- EYW
1 stop8h 08m
American Airlines
Thu 7/302:22 pm
EYW
- BOI
1 stop10h 15m
American Airlines
Deal found 2/3![American Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 2/5. 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 8/128:05 am
BOI
- EYW
2 stops12h 06m
United Airlines
Tue 8/187:00 am
EYW
- BOI
2 stops16h 15m
United Airlines
Deal found 2/5![United Airlines logo]()
$470
This Delta deal was found by Cheapflights users on 2/3. 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.
Mon 7/2011:30 pm
BOI
- EYW
1 stop9h 28m
Delta
Thu 7/302:35 pm
EYW
- BOI
1 stop10h 03m
Delta
Deal found 2/3![Delta logo]()
$475
This Delta deal was found by Cheapflights users on 2/4. 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.
Wed 3/116:00 am
GEG
- EYW
2 stops10h 41m
Delta
Tue 3/172:40 pm
EYW
- GEG
2 stops12h 23m
Delta
Deal found 2/4![Delta logo]()
$485
This Delta deal was found by Cheapflights users on 2/3. 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.
Sun 7/1911:30 pm
BOI
- EYW
1 stop9h 28m
Delta
Thu 7/302:35 pm
EYW
- BOI
2 stops11h 21m
Delta
Deal found 2/3![Delta logo]()
$496
This American Airlines deal was found by Cheapflights users on 2/5. 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.
Thu 12/35:17 am
GEG
- EYW
2 stops13h 28m
American Airlines
Mon 12/142:31 pm
EYW
- GEG
1 stop9h 26m
American Airlines
Deal found 2/5![American Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/77:00 am
BOI
- EYW
2 stops13h 37m
American Airlines
Thu 3/122:25 pm
EYW
- BOI
1 stop9h 58m
American Airlines
Deal found 2/3![American Airlines logo]()
$508
Best flights from Idaho to Key WestDiscover carefully curated flight deals from Idaho to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 5, 2026.
Discover carefully curated flight deals from Idaho to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 5, 2026.
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 3/37:00 am
BOI
- EYW
1 stop7h 18m
American Airlines
Tue 3/107:42 pm
EYW
- BOI
2 stops18h 18m
American Airlines
Deal found 2/2![American Airlines logo]()
$366
This Delta deal was found by Cheapflights users on 2/3. 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.
Mon 7/2011:30 pm
BOI
- EYW
1 stop9h 28m
Delta
Thu 7/302:35 pm
EYW
- BOI
1 stop10h 03m
Delta
Deal found 2/3![Delta logo]()
$475
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/116:00 am
GEG
- EYW
1 stop7h 24m
American Airlines
Tue 3/172:40 pm
EYW
- GEG
2 stops11h 34m
American Airlines
Deal found 2/2![American Airlines logo]()
$422
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/36:00 am
GEG
- EYW
1 stop7h 18m
American Airlines
Tue 3/102:40 pm
EYW
- GEG
2 stops11h 34m
American Airlines
Deal found 2/4![American Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 2/4. 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.
Wed 3/116:00 am
GEG
- EYW
2 stops10h 41m
Delta
Tue 3/172:40 pm
EYW
- GEG
2 stops12h 23m
Delta
Deal found 2/4![Delta logo]()
$485
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Mon 7/206:00 pm
BOI
- EYW
2 stops16h 15m
American Airlines
Thu 7/302:22 pm
EYW
- BOI
1 stop10h 15m
American Airlines
Deal found 2/3![American Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 2/3. 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.
Thu 5/711:39 pm
BOI
- EYW
1 stop9h 14m
Delta
Tue 5/122:00 pm
EYW
- BOI
1 stop10h 28m
Delta
Deal found 2/3![Delta logo]()
$567
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/77:00 am
BOI
- EYW
2 stops13h 37m
American Airlines
Thu 3/122:25 pm
EYW
- BOI
1 stop9h 58m
American Airlines
Deal found 2/3![American Airlines logo]()
$508
This Delta deal was found by Cheapflights users on 2/2. 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.
Sun 7/2611:30 pm
BOI
- EYW
1 stop9h 28m
Delta
Sun 8/22:35 pm
EYW
- BOI
1 stop10h 03m
Delta
Deal found 2/2![Delta logo]()
$579
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 5/196:34 am
GEG
- EYW
2 stops13h 24m
American Airlines
Sat 5/232:22 pm
EYW
- GEG
1 stop9h 25m
American Airlines
Deal found 2/3![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 2/3. 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 5/66:43 am
BOI
- EYW
2 stops13h 53m
American Airlines
Tue 5/122:29 pm
EYW
- BOI
1 stop10h 09m
American Airlines
Deal found 2/3![American Airlines logo]()
$541
Last-minute flights from Idaho to Key WestDiscover last-minute flight deals from Idaho to Key West. Data last updated February 5, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Key West. Data last updated February 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 2/107:20 am
BOI
- EYW
2 stops14h 36m
American Airlines
Thu 2/192:45 pm
EYW
- BOI
1 stop9h 37m
American Airlines
Deal found 2/3![American Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/37:00 am
BOI
- EYW
1 stop7h 18m
American Airlines
Tue 3/107:42 pm
EYW
- BOI
2 stops18h 18m
American Airlines
Deal found 2/4![American Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/36:00 am
GEG
- EYW
2 stops10h 15m
American Airlines
Tue 3/102:40 pm
EYW
- GEG
2 stops11h 34m
American Airlines
Deal found 2/4![American Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/77:00 am
BOI
- EYW
2 stops13h 37m
American Airlines
Thu 3/122:25 pm
EYW
- BOI
1 stop9h 58m
American Airlines
Deal found 2/3![American Airlines logo]()
$508
This American Airlines deal was found by Cheapflights users on 2/5. 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 3/116:00 am
GEG
- EYW
1 stop7h 24m
American Airlines
Tue 3/172:40 pm
EYW
- GEG
2 stops11h 34m
American Airlines
Deal found 2/5![American Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 2/4. 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.
Wed 3/116:00 am
GEG
- EYW
2 stops10h 41m
Delta
Tue 3/172:40 pm
EYW
- GEG
2 stops12h 23m
Delta
Deal found 2/4![Delta logo]()
$485
One-way flights from Idaho to Key WestSearch for one-way flight options from Idaho to Key West. Find affordable one-way fares based on user searches. Data last updated February 5, 2026.
Search for one-way flight options from Idaho to Key West. Find affordable one-way fares based on user searches. Data last updated February 5, 2026.
This Delta deal was found by Cheapflights users on 2/2. 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 5/96:41 pm
BOI
- EYW
2 stops14h 12m
Delta
Deal found 2/2![Delta logo]()
$358
This American Airlines deal was found by Cheapflights users on 2/3. 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 5/96:43 am
BOI
- EYW
1 stop8h 19m
American Airlines
Deal found 2/3![American Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 2/5. 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.
Fri 2/1312:38 pm
GEG
- EYW
2 stops30h 31m
United Airlines
Deal found 2/5![United Airlines logo]()
$618
This American Airlines deal was found by Cheapflights users on 2/2. 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 2/136:00 am
GEG
- EYW
1 stop7h 24m
American Airlines
Deal found 2/2![American Airlines logo]()
$945
Find flight deals from Idaho to Key West
Keep the following information in mind while searching for Idaho to Key West flight deals. Data was last updated February 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $366 (American Airlines) |
One-way from | $358 (Delta) |
Popular in | November |
Cheapest in | August |
Average price | $883 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Idaho to Key West that are best for you.
Fly from
Idaho
Fly to
Key West
Route
Depart
Return
Price
BoiseKey West
BOI - EYW
BOIEYW
Boise Air Term. Gowen Fld
Tue 3/3
7:00 am-4:18 pm
1 stop7h 18m
Key West
Tue 3/10
7:42 pm-12:00 pm
2 stops18h 18m
$366
SpokaneKey West
GEG - EYW
GEGEYW
Spokane
Wed 3/11
6:00 am-4:24 pm
1 stop7h 24m
Key West
Tue 3/17
2:40 pm-11:14 pm
2 stops11h 34m
$422
SpokaneKey West
GEG - EYW
GEGEYW
Spokane
Tue 3/3
6:00 am-4:18 pm
1 stop7h 18m
Key West
Tue 3/10
2:40 pm-11:14 pm
2 stops11h 34m
$422
BoiseKey West
BOI - EYW
BOIEYW
Boise Air Term. Gowen Fld
Mon 7/20
6:00 pm-12:15 pm
2 stops16h 15m
Key West
Thu 7/30
2:22 pm-10:37 pm
1 stop10h 15m
$452
BoiseKey West
BOI - EYW
BOIEYW
Boise Air Term. Gowen Fld
Mon 7/20
11:30 pm-10:58 am
1 stop9h 28m
Key West
Thu 7/30
2:35 pm-10:38 pm
1 stop10h 03m
$475
SpokaneKey West
GEG - EYW
GEGEYW
Spokane
Wed 3/11
6:00 am-7:41 pm
2 stops10h 41m
Key West
Tue 3/17
2:40 pm-12:03 am
2 stops12h 23m
$485
BoiseKey West
BOI - EYW
BOIEYW
Boise Air Term. Gowen Fld
Sat 3/7
7:00 am-10:37 pm
2 stops13h 37m
Key West
Thu 3/12
2:25 pm-10:23 pm
1 stop9h 58m
$508
SpokaneKey West
GEG - EYW
GEGEYW
Spokane
Tue 5/19
6:34 am-10:58 pm
2 stops13h 24m
Key West
Sat 5/23
2:22 pm-8:47 pm
1 stop9h 25m
$508
BoiseKey West
BOI - EYW
BOIEYW
Boise Air Term. Gowen Fld
Wed 5/6
6:43 am-10:36 pm
2 stops13h 53m
Key West
Tue 5/12
2:29 pm-10:38 pm
1 stop10h 09m
$541
BoiseKey West
BOI - EYW
BOIEYW
Boise Air Term. Gowen Fld
Thu 5/7
11:39 pm-10:53 am
1 stop9h 14m
Key West
Tue 5/12
2:00 pm-10:28 pm
1 stop10h 28m
$567
Showing 1-10 of 15 results
Best time to book a flight from Idaho to Key West
Have a flexible travel schedule? Discover the best time to fly to Key West from Idaho with our price prediction graph.
BOI-EYW
GEG-EYW
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 Idaho to Key West
USID-EYW
BOI-EYW
GEG-EYW
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Idaho to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Idaho to Key West
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Complete your trip
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Other flights to Key West
Explore flights to Key West departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 5, 2026.
Idaho and Key West flights
Browse other Idaho and Key West flight options. Last updated on February 5, 2026.
Popular flight searches
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Idaho to Key West flights
Consider these flights traveling from Idaho to Key West.
Top airline flying from Idaho to Key West
Discover the top airline that operate flights from Idaho 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 February 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$576 | FlexibilityNo cancel fee | On-time71% |