Cheap Flights from Louisville, KY to Key West, FL from $89

On Cheapflightsplus.com you will find 26 connecting flights from Louisville to Key West. You can compare airfare deals from 4 airlines and multiple travel sites from $89, book and save on cheap plane tickets and last minute offers. Also check out SDF-EYW flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Louisville to Key West Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $89 (one-way), $153 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Louisville to Key West. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
06:15 — 14:11
06:15 — 08:30 UA3594 United Airlines
Louisville — Newark
2h 10m stop
10:40 — 14:11 UA3687 United Airlines
Newark — Key West
7h 56m
including layover
Find flight
from$292
06:30 — 12:41
06:30 — 08:42 UA3594 United Airlines
Louisville — Newark
47m stop
09:29 — 12:41 UA1822 United Airlines
Newark — Key West
6h 11m
including layover
Find flight
from$339
09:06 — 08:15
+1 day
09:06 — 11:15 NK143 Spirit Airlines
Louisville — Orlando
19h 45m stop
07:00 — 08:15 MX159 Mexicana
Orlando — Key West
23h 9m
including layover
Find flight
from$268
11:10 — 12:41
+1 day
11:10 — 13:22 UA3682 United Airlines
Louisville — Newark
20h 7m stop
09:29 — 12:41 UA1822 United Airlines
Newark — Key West
25h 31m
including layover
Find flight
from$408
15:47 — 14:44
+1 day
15:47 — 17:47 G41099 Allegiant Air
Louisville — Clearwater
19h 53m stop
13:40 — 14:44 G41048 Allegiant Air
Clearwater — Key West
22h 57m
including layover
Find flight
from$89
15:52 — 15:08
+1 day
15:52 — 17:52 G41099 Allegiant Air
Louisville — Clearwater
20h 13m stop
14:05 — 15:08 G41034 Allegiant Air
Clearwater — Key West
23h 16m
including layover
Find flight
from$98
18:57 — 09:22
+1 day
18:57 — 21:07 MX105 Mexicana
Louisville — Tampa
11h 8m stop
08:15 — 09:22 MX160 Mexicana
Tampa — Key West
14h 25m
including layover
Find flight
from$124
11:34 — 16:36
+1 day
11:34 — 13:49 G41451 Allegiant Air
Louisville — Punta Gorda
7h 22m stop
21:11 — 23:36 G42750 Allegiant Air
Punta Gorda — Pittsburgh
14h 18m stop
13:54 — 16:36 G4991 Allegiant Air
Pittsburgh — Key West
29h 2m
including layover
Find flight
from$154
12:34 — 15:26
+1 day
12:34 — 13:15 G43102 Allegiant Air
Louisville — Fort Walton Beach
6h 59m stop
20:14 — 22:44 G4256 Allegiant Air
Fort Walton Beach — Fletcher
14h 43m stop
13:27 — 15:26 G4975 Allegiant Air
Fletcher — Key West
26h 52m
including layover
Find flight
from$207
12:59 — 16:51
+1 day
12:59 — 14:57 G42943 Allegiant Air
Louisville — Sanford
2h 45m stop
17:42 — 19:56 G42742 Allegiant Air
Sanford — Pittsburgh
18h 13m stop
14:09 — 16:51 G4991 Allegiant Air
Pittsburgh — Key West
27h 52m
including layover
Find flight
from$248
13:50 — 14:00
+1 day
13:50 — 15:35 UA6026 United Airlines
Louisville — Washington D.C.
1h 43m stop
17:18 — 19:43 UA1140 United Airlines
Washington D.C. — Tampa
17h 2m stop
12:45 — 14:00 UA3136 United Airlines
Tampa — Key West
24h 10m
including layover
Find flight
from$246
13:59 — 14:00
+1 day
13:59 — 14:41 UA5644 United Airlines
Louisville — Chicago
1h 4m stop
15:45 — 19:34 UA2075 United Airlines
Chicago — Tampa
17h 11m stop
12:45 — 14:00 UA3136 United Airlines
Tampa — Key West
24h 1m
including layover
Find flight
from$246
17:43 — 16:36
+1 day
17:43 — 18:24 G43090 Allegiant Air
Louisville — Fort Walton Beach
14h 8m stop
08:32 — 11:40 G42725 Allegiant Air
Fort Walton Beach — Pittsburgh
2h 14m stop
13:54 — 16:36 G4991 Allegiant Air
Pittsburgh — Key West
22h 53m
including layover
Find flight
from$208
17:43 — 15:16
+1 day
17:43 — 18:24 G43090 Allegiant Air
Louisville — Fort Walton Beach
12h 51m stop
07:15 — 10:10 G43069 Allegiant Air
Fort Walton Beach — Covington
2h 33m stop
12:43 — 15:16 G4426 Allegiant Air
Covington — Key West
21h 33m
including layover
Find flight
from$243
18:04 — 18:42
+1 day
18:04 — 20:19 G42482 Allegiant Air
Louisville — Punta Gorda
16h 15m stop
12:34 — 14:19 G41840 Allegiant Air
Punta Gorda — Fletcher
2h 24m stop
16:43 — 18:42 G4228 Allegiant Air
Fletcher — Key West
24h 38m
including layover
Find flight
from$159
20:35 — 16:51
+1 day
20:35 — 21:16 G41495 Allegiant Air
Louisville — Fort Walton Beach
9h 14m stop
06:30 — 09:38 G43116 Allegiant Air
Fort Walton Beach — Pittsburgh
4h 31m stop
14:09 — 16:51 G4991 Allegiant Air
Pittsburgh — Key West
20h 16m
including layover
Find flight
from$256
*Departure and arrival times - local. Updated on July 15, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Louisville to Key West depends on and how to choose the most interesting flight option for you.

Distance between Louisville and Key West is 1560 miles. Time difference between the cities is 0h. Airplanes depart 06:00 to 20:35 from 3 Louisville airports and arrive 06:00 to 20:35 to 2 Key West airports. Average flight time is 23h 35m.

  • The fastest flight 6h 11m
  • Average flight time 23h 35m
  • The earliest flight 06:00
  • The latest flight 20:35
  • Distance 970 ml

The cheapest months to travel to Key West are august (from 89 $), july (from 98 $), september (from 159 $).

The most expensive months are october (from 246 $), september (from 159 $), july (from 98 $).

What is the lowest airfare Louisville to Key West?

The cheapest plane ticket found by our users is $89. This airfare is for economy class on one-way G41099 flight by Allegiant Air for August 8, 2025 which leaves Standiford Field in Louisville at 15:47 am and arrives at Key West Key West Int. at 14:44.

Economy class
$89
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Business class
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First class
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Popular Airlines on the Route

The flight Louisville — Key West is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Mexicana - 3 departures per week at the price of from $ 124 . And the most expensive tickets are offered by United Airlines airline - from $ 745.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 26 flights with layovers on the route. The fastest connecting flight is UA3594 by United Airlines takes 6h 11m and the cheapest is G41099 by Allegiant Air for $89.

  • MX - Mexicana
    from $124
    Find
  • UA - United Airlines
    from $246
    Find
  • G4 - Allegiant Air
    from $89
    Find
  • NK - Spirit Airlines
    from $268
    Find
See more connecting flights

Airports

You can fly from Louisville to Key West from 3 airports (Standiford Field, Intercontinental, Bowman Field).

Louisville airports

  • Standiford Field-SDF
    from $89
    Find
  • Intercontinental-LJC
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  • Bowman Field-LOU
    Find

Key West airports

  • NAS-NQX
    Find
  • Key West Int.-EYW
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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