Flights Philadelphia → Key West
As of November 2026, economy flights from Philadelphia to Key West have a typical range USD 1078–4637, median USD 1325. Full range across all 172 offers: USD 830–6377. We found 66% of 172 offers from budget carriers (around USD 1308) and 34% from full-service carriers (around USD 1958).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Philadelphia → Key West
Based on 172 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Philadelphia → Key West
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| American Airlines | — | — | — |
| Delta | — | — | — |
| American | — | USD 100 | — |
| United | — | — | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Philadelphia to Key West cost?
Based on 172 offers · November 2026
Philadelphia to Key West flights ranged from USD 830 to USD 6377 across 172 offers analyzed in November 2026. Two fare clusters detected: budget fares around 1108 and premium fares around 6100 The chart below shows how prices distributed across all 172 offers.
These 172 offers (November 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 1143 and USD 1444
What hidden fees do Philadelphia to Key West flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Philadelphia to Key West routes. The breakdown below is based on 172 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| AA | 11 | 1% |
| DL | 26 | 1% |
| American | 100 | 7% |
| UA | 10 | 1% |
American: base ~USD 1118 + fees USD 100 = ~USD 1218 total. United Airlines: base ~USD 1948 + fees USD 10 = ~USD 1958 total.
American's USD 100 ancillary fees narrow the gap with United Airlines's lower-fee model — the USD 830 base difference shrinks to USD 740 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Philadelphia to Key West?
4 airlines flew Philadelphia to Key West in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (American), fares ranged USD 1106–1330 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 American | 2 | 1106–1330 | 1218 | 100 (8%) |
 American Airlines | 111 | 1094–1424 | 1308 | 11 (1%) |
 United Airlines | 9 | 1842–2184 | 1958 | 10 (1%) |
 Delta Air Lines | 50 | 1049–6221 | 2146 | 26 (1%) |
Where do the best Philadelphia → Key West prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Philadelphia to Key West flights
- Philadelphia–Key West had 172 offers analyzed. Median price: USD 1325.
- American charges 10.0x more in ancillary fees than UA — USD 100 vs USD 10 avg per booking.
- The same route priced USD 3435 apart depending on where it was booked — the lowest median was USD 1218. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Philadelphia to Key West cost?
- Based on 172 offers analyzed, Philadelphia to Key West flights range from USD 830 to USD 6377, with a median price of USD 1325. Search for your specific dates →
- What hidden fees should I expect on Philadelphia to Key West flights?
- On average, ancillary fees (bags, seat selection) add USD 16 to the base fare on Philadelphia to Key West flights. See itemized fees for your itinerary →
- Which airline is cheapest on Philadelphia to Key West including all fees?
- American has the lowest median fare on Philadelphia to Key West at USD 1218 (median across 2 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Philadelphia–Key West flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 1218. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Philadelphia to Key West routes?
- Philadelphia to Key West has 4 airlines competing, creating a price range from USD 830 to USD 6377 across 172 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
4 airlines, two price clusters — find which fits your budget
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