Philadelphia to Key West: what the flight costs
In the last 60 days we checked this route 3 times. The typical round trip was $338 per person and the lowest $338, taxes and fees included.
| Per person | |
|---|---|
| Lowest seen | $338 |
| Typical (median) | $338 |
| Price checks, 60 days | 3 |
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Trips we picked on this route
Just found · from PhiladelphiaWorth it, if
Key West
Nov 27–30, 2026 · 3 nights
- Fare $338 per person, $143 below the highest fare we saw
- Blue Flamingo Resort Key West scores 8.4 from 1,582 reviews
- Highs of 75–77°F for Mallory Square sunsets in late November
$1,513 for two · 3 nights · flights, hotel, taxes & fees
Flights $676 + hotel $837, taxes in · a checked bag each adds about $240
F9 + G4 · with a stop · 33h 50m
The catch: The cheapest outbound has one stop and takes 33h 50m, landing 2:09 PM Saturday; a checked bag is about $240 for two, not in the total.
Worth it if you can sleep through an overnight connection for two warm island days; skip it if a 3-night trip needs every hour.
Every fare we found in the last 30 days
| Checked | Trip dates | Per person | Airline | Stops | Duration | Source |
|---|---|---|---|---|---|---|
| Oct 14, 2026 | Nov 19–22, 2026 | $359 | F9 + G4 | with a stop | 24h 40m | Kiwi.com |
| Oct 13, 2026 | Nov 27–30, 2026 | $338 | F9 + G4 | with a stop | 33h 50m | Kiwi.com |
| Oct 13, 2026 | Nov 27–30, 2026 | $338 | F9 + G4 | with a stop | 16h 2m | Kiwi.com |
About Key West
Key West is the end of the road, a small island of pastel conch houses, sunset celebrations and reef snorkelling at the tip of the Florida Keys.
Key West from every city: when to go, where to stay, what to do
Questions about Philadelphia to Key West
What does a round trip from Philadelphia to Key West usually cost?
Over the last 60 days the typical price we found was $338 per person, taxes and fees included, across 3 checks; the lowest was $338.
When is the best time to fly from Philadelphia to Key West?
Key West is at its best in January, February, March, April, May, November and December. Avoid August, September, October: Peak hurricane season; many visitors wait until November
Do I need a passport to fly from Philadelphia to Key West?
No passport needed for travelers from the United States: a government photo ID is enough for Key West.