Cheap Flights from Knoxville, TN to Key West, FL from $96

On Cheapflightsplus.com you will find 93 connecting flights from Knoxville to Key West. You can compare airfare deals from 1 airlines and multiple travel sites from $96, book and save on cheap plane tickets and last minute offers. Also check out TYS-EYW flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

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

Distance between Knoxville and Key West is 1270 miles. Time difference between the cities is 0h. Airplanes depart 06:00 to 21:31 from 1 Knoxville airport and arrive 06:00 to 21:31 to 2 Key West airports. Average flight time is 26h 13m.

  • The fastest flight 6h 1m
  • Average flight time 26h 13m
  • The earliest flight 06:00
  • The latest flight 21:31
  • Distance 790 ml

The cheapest months to travel to Key West are august (from 96 $), july (from 99 $), october (from 112 $).

The most expensive months are september (from 186 $), october (from 112 $), july (from 99 $).

What is the lowest airfare Knoxville to Key West?

The cheapest plane ticket found by our users is $96. This airfare is for economy class on one-way G43062 flight by Allegiant Air for August 16, 2025 which leaves Mc Ghee Tyson in Knoxville at 14:23 am and arrives at Key West Key West Int. at 14:10.

Economy class
$96
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Business class
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First class
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Flight Schedule Knoxville (Tennessee) to Key West (Florida)

07:00 — 09:33+1day
26h 33m flight time
Find flight
from$99
07:00 — 08:41 Knoxville — Clearwater
G43048 Allegiant Air
23h 49m stop
08:30 — 09:33 Clearwater — Key West
G4971 Allegiant Air
07:00 — 09:33+1day
26h 33m flight time
Find flight
from$108
07:00 — 08:41 Knoxville — Clearwater
G43038 Allegiant Air
23h 49m stop
08:30 — 09:33 Clearwater — Key West
G4971 Allegiant Air
08:30 — 15:08
6h 38m flight time
Find flight
from$109
08:30 — 10:11 Knoxville — Clearwater
G43035 Allegiant Air
3h 54m stop
14:05 — 15:08 Clearwater — Key West
G41034 Allegiant Air
08:30 — 08:04+1day
23h 34m flight time
Find flight
from$109
08:30 — 10:11 Knoxville — Clearwater
G43035 Allegiant Air
20h 49m stop
07:00 — 08:04 Clearwater — Key West
G4971 Allegiant Air
08:47 — 09:12+1day
24h 25m flight time
Find flight
from$112
08:47 — 10:26 Knoxville — Clearwater
G42708 Allegiant Air
21h 44m stop
08:10 — 09:12 Clearwater — Key West
G4973 Allegiant Air
10:54 — 15:26+1day
28h 32m flight time
Find flight
from$151
10:54 — 12:58 Knoxville — Miami
G4494 Allegiant Air
8h 12m stop
21:10 — 23:11 Miami — Fletcher
G4248 Allegiant Air
14h 16m stop
13:27 — 15:26 Fletcher — Key West
G4975 Allegiant Air
12:39 — 09:33+1day
20h 54m flight time
Find flight
from$125
12:39 — 14:20 Knoxville — Clearwater
G41404 Allegiant Air
18h 10m stop
08:30 — 09:33 Clearwater — Key West
G4971 Allegiant Air
12:39 — 09:33+1day
20h 54m flight time
Find flight
from$142
12:39 — 14:20 Knoxville — Clearwater
G43058 Allegiant Air
18h 10m stop
08:30 — 09:33 Clearwater — Key West
G4971 Allegiant Air
13:31 — 09:43+1day
20h 12m flight time
Find flight
from$129
13:31 — 15:04 Knoxville — Sanford
G41436 Allegiant Air
17h 28m stop
08:32 — 09:43 Sanford — Key West
G42877 Allegiant Air
14:13 — 08:03+1day
17h 50m flight time
Find flight
from$124
14:13 — 15:53 Knoxville — Clearwater
G41429 Allegiant Air
15h 7m stop
07:00 — 08:03 Clearwater — Key West
G4971 Allegiant Air
14:23 — 14:10+1day
23h 47m flight time
Find flight
from$96
14:23 — 15:58 Knoxville — Sanford
G43062 Allegiant Air
21h 2m stop
13:00 — 14:10 Sanford — Key West
G41340 Allegiant Air
17:29 — 08:04+1day
14h 35m flight time
Find flight
from$109
17:29 — 19:10 Knoxville — Clearwater
G43062 Allegiant Air
11h 50m stop
07:00 — 08:04 Clearwater — Key West
G4971 Allegiant Air
18:10 — 15:08+1day
20h 58m flight time
Find flight
from$99
18:10 — 19:51 Knoxville — Clearwater
G43030 Allegiant Air
18h 14m stop
14:05 — 15:08 Clearwater — Key West
G41034 Allegiant Air
18:12 — 14:43+1day
20h 31m flight time
Find flight
from$108
18:12 — 19:52 Knoxville — Clearwater
G43020 Allegiant Air
17h 48m stop
13:40 — 14:43 Clearwater — Key West
G41034 Allegiant Air
18:19 — 09:43+1day
15h 24m flight time
Find flight
from$112
18:19 — 19:52 Knoxville — Sanford
G43027 Allegiant Air
12h 40m stop
08:32 — 09:43 Sanford — Key West
G42877 Allegiant Air
Full flight schedule will help you in detecting at what time planes fly from Knoxville 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 and arrival times - local. Updated on October 19, 2025.

Popular Airlines on the Route

The flight Knoxville — Key West is served by 1 regular airline and 1 low-cost airline. Most of the flights on this route are operated by Allegiant Air - 93 departures per week at the price of from $ 96 . And the most expensive tickets are offered by Allegiant Air airline - from $ 386.

Direct flights

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

Connecting Flights

There are 93 flights with layovers on the route. The fastest connecting flight is G41404 by Allegiant Air takes 6h 1m and the cheapest is G43062 by Allegiant Air for $96.

  • G4 - Allegiant Air
    from $96
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See more connecting flights

Airports

You can fly from Knoxville to Key West from 1 airports (Mc Ghee Tyson).

Knoxville airports

  • Mc Ghee Tyson-TYS
    from $96
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Key West airports

  • NAS-NQX
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  • Key West Int.-EYW
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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.

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