$55 Find Cheap Flights from Philadelphia to Key Largo - Compare and Save

When flying out of Philadelphia you’ll be using Philadelphia. Key Largo does not have its own airport so you’ll be flying into nearby Miami airport, which is 49.7 mi away.

Direct flights cover the 1,015 miles separating Philadelphia and Key Largo in about 2h 50m.

38 direct flights run between Philadelphia and Key Largo on a daily basis. On average, there are about 269 departures each week.

Consider leaving on a Sunday and avoid Tuesdays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Key Largo.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key Largo from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Key Largo with an airline and back to Philadelphia with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Key Largo from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

In the last 5 days, the cheapest one-way ticket between Philadelphia and Key Largo found on KAYAK was with Frontier for $34. JetBlue offered a round-trip connection from $55 and Frontier from $58.