Cheap Flights from Philadelphia, PA to Key West, FL from $133
On Cheapflightsplus.com you will find 51 connecting flights from Philadelphia to Key West. You can compare airfare deals from 3 airlines and multiple travel sites from $133, book and save on cheap plane tickets and last minute offers. Also check out PHL-EYW flight schedule to find best flight time, convenient departure and arrival airports.
Find One-Way and Round-Trip Philadelphia 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: $133 (one-way), $228 (round-trip).
Direct flights
Check prices for return flight
Best Flights from Philadelphia to Key West Today
Take a look at the list of non stop flights and flights with layovers from Philadelphia to Key West with the lowest price of $133. Take a look at the list of flights with layovers from Philadelphia to Key West from $133. There’re no direct flights. The fastest connecting flight – 6h 54m.
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $133 | 18:47 Philadelphia Philadelphia Int. | 14:10+1 день Key West Key West Int. | 19h 23m layover 15h 29m - Sanford | Spirit Airlines | NK3161 G41340 |
| from $198 | 19:05 Philadelphia Philadelphia Int. | 13:07+1 день Key West Key West Int. | 18h 2m layover 14h 4m - Orlando | Spirit Airlines | NK1566 MX162 |
| from $219 | 12:29 Philadelphia Philadelphia Int. | 13:07+1 день Key West Key West Int. | 24h 38m layover 20h 43m - Orlando | Spirit Airlines | NK321 MX162 |
| from $222 | 12:29 Philadelphia Philadelphia Int. | 14:10+1 день Key West Key West Int. | 25h 41m layover 21h 51m - Sanford | Spirit Airlines | NK321 G41340 |
| from $234 | 06:13 Philadelphia Philadelphia Int. | 13:07 Key West Key West Int. | 6h 54m layover 3h 3m - Orlando | Spirit Airlines | NK3997 MX162 |
| from $147 | 17:11 Philadelphia Philadelphia Int. | 14:44+1 день Key West Key West Int. | 21h 33m layover 0h 47m - Charlotte 16h 10m - Clearwater | Spirit Airlines | NK1128 NK1295 G41048 |
| from $173 | 18:18 Philadelphia Philadelphia Int. | 09:12+1 день Key West Key West Int. | 14h 54m layover 0h 44m - Miami 9h 4m - Clearwater | Spirit Airlines | NK877 NK1954 G4973 |
| from $173 | 06:10 Philadelphia Philadelphia Int. | 09:12+1 день Key West Key West Int. | 27h 2m layover 6h 2m - Miami 16h 0m - Clearwater | Spirit Airlines | NK1005 NK322 G4973 |
| from $203 | 07:22 Philadelphia Philadelphia Int. | 14:10+1 день Key West Key West Int. | 30h 48m layover 4h 10m - Detroit 21h 5m - Sanford | Spirit Airlines | NK1012 NK3782 G41340 |
| from $229 | 15:00 Philadelphia Philadelphia Int. | 18:05+1 день Key West Key West Int. | 27h 5m layover 3h 38m - Washington D.C. 18h 31m - Miami | United Airlines | UA4576 UA1379 UA3094 |
| from $229 | 12:50 Philadelphia Philadelphia Int. | 18:05+1 день Key West Key West Int. | 29h 15m layover 1h 58m - Chicago 20h 43m - Miami | United Airlines | UA511 UA2180 UA3094 |
| from $234 | 07:22 Philadelphia Philadelphia Int. | 17:01+1 день Key West Key West Int. | 33h 39m layover 4h 10m - Detroit 23h 56m - Sanford | Spirit Airlines | NK1012 NK3782 G41349 |
| from $252 | 19:59 Philadelphia Philadelphia Int. | 12:15+1 день Key West Key West Int. | 16h 16m layover 1h 2m - Washington D.C. 10h 16m - Tampa | United Airlines | UA4615 UA1896 UA3135 |
| from $252 | 19:59 Philadelphia Philadelphia Int. | 14:00+1 день Key West Key West Int. | 18h 1m layover 1h 2m - Washington D.C. 12h 1m - Tampa | United Airlines | UA4615 UA1896 UA3136 |
| from $254 | 12:11 Philadelphia Philadelphia Int. | 15:18+1 день Key West Key West Int. | 27h 7m layover 1h 7m - Minneapolis 18h 46m - Covington | Sun Country Airlines | SY1776 SY219 G4426 |
| from $255 | 06:10 Philadelphia Philadelphia Int. | 13:07+1 день Key West Key West Int. | 30h 57m layover 4h 35m - Miami 21h 5m - Orlando | Spirit Airlines | NK1005 NK196 MX162 |
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 12, 2025
Flight Schedule Philadelphia (Pennsylvania) to Key West (Florida)
Full flight schedule will help you in detecting at what time planes fly from Philadelphia 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 |
|---|---|---|---|---|
|
06:13 — 14:11
|
06:13 — 08:49
NK3997
Spirit Airlines
Philadelphia — Sanford
4h 11m stop
13:00 — 14:11
G41341
Allegiant Air
Sanford — Key West
|
7h 58m including layover |
Find flight
from$226 |
|
|
09:00 — 17:01
|
09:00 — 11:44
NK3161
Spirit Airlines
Philadelphia — Sanford
4h 7m stop
15:51 — 17:01
G41349
Allegiant Air
Sanford — Key West
|
8h 1m including layover |
Find flight
from$220 |
|
|
12:29 — 13:07
+1 day
|
12:29 — 15:09
NK321
Spirit Airlines
Philadelphia — Orlando
20h 43m stop
11:52 — 13:07
MX162
Mexicana
Orlando — Key West
|
24h 38m including layover |
Find flight
from$219 |
|
|
12:29 — 14:10
+1 day
|
12:29 — 15:09
NK321
Spirit Airlines
Philadelphia — Sanford
21h 51m stop
13:00 — 14:10
G41340
Allegiant Air
Sanford — Key West
|
25h 41m including layover |
Find flight
from$222 |
|
|
18:47 — 14:10
+1 day
|
18:47 — 21:31
NK3161
Spirit Airlines
Philadelphia — Sanford
15h 29m stop
13:00 — 14:10
G41340
Allegiant Air
Sanford — Key West
|
19h 23m including layover |
Find flight
from$133 |
|
|
19:05 — 13:07
+1 day
|
19:05 — 21:48
NK1566
Spirit Airlines
Philadelphia — Orlando
14h 4m stop
11:52 — 13:07
MX162
Mexicana
Orlando — Key West
|
18h 2m including layover |
Find flight
from$198 |
|
|
05:45 — 17:01
|
05:45 — 07:53
NK1062
Spirit Airlines
Philadelphia — Atlanta
1h 49m stop
09:42 — 11:14
NK1851
Spirit Airlines
Atlanta — Sanford
4h 37m stop
15:51 — 17:01
G41349
Allegiant Air
Sanford — Key West
|
11h 16m including layover |
Find flight
from$290 |
|
|
06:10 — 09:12
+1 day
|
06:10 — 09:03
NK1005
Spirit Airlines
Philadelphia — Miami
6h 2m stop
15:05 — 16:10
NK322
Spirit Airlines
Miami — Clearwater
16h stop
08:10 — 09:12
G4973
Allegiant Air
Clearwater — Key West
|
27h 2m including layover |
Find flight
from$173 |
|
|
07:22 — 14:10
+1 day
|
07:22 — 09:03
NK1012
Spirit Airlines
Philadelphia — Detroit
4h 10m stop
13:13 — 15:55
NK3782
Spirit Airlines
Detroit — Sanford
21h 5m stop
13:00 — 14:10
G41340
Allegiant Air
Sanford — Key West
|
30h 48m including layover |
Find flight
from$203 |
|
|
07:22 — 17:01
+1 day
|
07:22 — 09:03
NK1012
Spirit Airlines
Philadelphia — Detroit
4h 10m stop
13:13 — 15:55
NK3782
Spirit Airlines
Detroit — Sanford
23h 56m stop
15:51 — 17:01
G41349
Allegiant Air
Sanford — Key West
|
33h 39m including layover |
Find flight
from$234 |
|
|
10:10 — 08:00
+1 day
|
10:10 — 11:32
UA622
United Airlines
Philadelphia — Chicago
2h 28m stop
14:00 — 17:49
UA622
United Airlines
Chicago — Tampa
12h 56m stop
06:45 — 08:00
UA3134
United Airlines
Tampa — Key West
|
21h 50m including layover |
Find flight
from$271 |
|
|
10:10 — 14:00
+1 day
|
10:10 — 11:32
UA622
United Airlines
Philadelphia — Chicago
2h 28m stop
14:00 — 17:49
UA622
United Airlines
Chicago — Tampa
18h 56m stop
12:45 — 14:00
UA3136
United Airlines
Tampa — Key West
|
27h 50m including layover |
Find flight
from$271 |
|
|
15:00 — 18:05
+1 day
|
14:50 — 16:00
UA4576
United Airlines
Philadelphia — Washington D.C.
3h 38m stop
18:50 — 21:35
UA1379
United Airlines
Washington D.C. — Miami
18h 31m stop
17:00 — 18:05
UA3094
United Airlines
Miami — Key West
|
27h 5m including layover |
Find flight
from$229 |
|
|
15:21 — 13:07
+1 day
|
15:21 — 16:41
NK1792
Spirit Airlines
Philadelphia — Nashville
1h 3m stop
17:44 — 20:45
NK1457
Spirit Airlines
Nashville — Orlando
15h 7m stop
11:52 — 13:07
MX162
Mexicana
Orlando — Key West
|
21h 46m including layover |
Find flight
from$280 |
|
|
17:11 — 14:44
+1 day
|
17:11 — 19:00
NK1128
Spirit Airlines
Philadelphia — Charlotte
47m stop
19:47 — 21:30
NK1295
Spirit Airlines
Charlotte — Clearwater
16h 10m stop
13:40 — 14:44
G41048
Allegiant Air
Clearwater — Key West
|
21h 33m including layover |
Find flight
from$147 |
|
|
18:18 — 14:10
+1 day
|
18:18 — 21:15
NK877
Spirit Airlines
Philadelphia — Miami
33m stop
21:48 — 23:00
NK676
Spirit Airlines
Miami — Sanford
14h stop
13:00 — 14:10
G41340
Allegiant Air
Sanford — Key West
|
19h 52m including layover |
Find flight
from$169 |
|
|
19:59 — 12:15
+1 day
|
19:59 — 21:08
UA4615
United Airlines
Philadelphia — Washington D.C.
1h 2m stop
22:10 — 00:44
UA1896
United Airlines
Washington D.C. — Tampa
10h 16m stop
11:00 — 12:15
UA3135
United Airlines
Tampa — Key West
|
16h 16m including layover |
Find flight
from$252 |
|
*Departure and arrival times - local. Updated on July 12, 2025
Flight Information
Below we will explain in detail what the flights cost on the destination from Philadelphia to Key West depends on and how to choose the most interesting flight option for you.
Distance between Philadelphia and Key West is 1809 miles. Time difference between the cities is 0h. Airplanes depart 05:45 to 19:59 from 4 Philadelphia airports and arrive 05:45 to 19:59 to 2 Key West airports. Average flight time is 22h 6m.
- The fastest flight 6h 54m
- Average flight time 22h 6m
- The earliest flight 05:45
- The latest flight 19:59
- Distance 1125 ml
The cheapest months to travel to Key West are august (from 133 $), october (from 173 $), july (from 198 $).
The most expensive months are september (from 327 $), june (from 299 $), july (from 198 $).
What is the lowest airfare Philadelphia to Key West?
The cheapest plane ticket found by our users is $133. This airfare is for economy class on one-way NK3161 flight by Spirit Airlines for August 16, 2025 which leaves Philadelphia Int. in Philadelphia at 18:47 am and arrives at Key West Key West Int. at 14:10.
Economy class
$133
Business class
?
First class
?
Popular Airlines on the Route
The flight Philadelphia — Key West is served by 3 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Sun Country Airlines - 2 departures per week at the price of from $ 254 . And the most expensive tickets are offered by United Airlines airline - from $ 505.
Direct flights
There’re no direct flights on this route. Try flights with stops.
Connecting Flights
There are 51 flights with layovers on the route. The fastest connecting flight is NK3997 by Spirit Airlines takes 6h 54m and the cheapest is NK3161 by Spirit Airlines for $133.
- SY - Sun Country Airlinesfrom $254Find
- UA - United Airlinesfrom $229Find
- NK - Spirit Airlinesfrom $133Find
See more connecting flights
Airports
You can fly from Philadelphia to Key West from 4 airports (Philadelphia Int., North Philadelphia, Mustin Alf, Philadelphia Sea Plane Base).
Philadelphia airports
- Philadelphia Int.-PHLfrom $133Find
- North Philadelphia-PNEFind
- Mustin Alf-MUVFind
- Philadelphia Sea Plane Base-PSQFind
Key West airports
- NAS-NQXFind
- Key West Int.-EYWFind
Airplanes
There are flights to Key West from Philadelphia by 3 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Philadelphia
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Top International Destinations from Philadelphia
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
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How to book a plane ticket yourself?
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