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Cheap flights from Philadelphia to Key West from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Key West departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Philadelphia to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:21 am - 11:27 am
PHL
-
EYW
6h 06m
1 stop
Multiple Airlines Logo
1:11 pm - 10:29 pm
EYW
-
PHL
9h 18m
2 stops
$383Multiple Airlines
Fri, Aug 21 - Mon, Aug 24
Multiple Airlines Logo
5:21 am - 11:27 am
PHL
-
EYW
6h 06m
1 stop
Multiple Airlines Logo
1:11 pm - 10:29 pm
EYW
-
PHL
9h 18m
2 stops
$384Multiple Airlines
Fri, Aug 28 - Mon, Aug 31
Multiple Airlines Logo
9:16 pm - 11:25 am
PHL
-
EYW
14h 09m
1 stop
Multiple Airlines Logo
12:05 pm - 8:08 pm
EYW
-
PHL
32h 03m
2 stops
$385Multiple Airlines
Sat, Jun 20 - Sun, Jun 28
Multiple Airlines Logo
7:22 pm - 10:24 am
PHL
-
EYW
15h 02m
2 stops
Multiple Airlines Logo
1:11 pm - 1:17 am
EYW
-
PHL
12h 06m
1 stop
$390Multiple Airlines
Sat, Jun 20 - Mon, Jun 22
Multiple Airlines Logo
5:21 am - 11:27 am
PHL
-
EYW
6h 06m
1 stop
Multiple Airlines Logo
12:05 pm - 4:16 pm
EYW
-
PHL
28h 11m
2 stops
$395Multiple Airlines
Fri, May 29 - Sun, May 31
Multiple Airlines Logo
5:38 pm - 1:54 pm
PHL
-
EYW
20h 16m
2 stops
Multiple Airlines Logo
12:07 pm - 11:38 pm
EYW
-
PHL
11h 31m
1 stop
$398Multiple Airlines
Fri, Jul 31 - Mon, Aug 3
Multiple Airlines Logo
5:04 pm - 11:25 am
PHL
-
EYW
18h 21m
1 stop
Multiple Airlines Logo
12:05 pm - 7:18 pm
EYW
-
PHL
7h 13m
1 stop
$400Multiple Airlines
Wed, May 13 - Sun, May 24
Multiple Airlines Logo
9:05 pm - 11:27 am
PHL
-
EYW
14h 22m
1 stop
Multiple Airlines Logo
1:14 pm - 10:10 pm
EYW
-
PHL
8h 56m
2 stops
$401Multiple Airlines
Thu, May 14 - Tue, May 26
Multiple Airlines Logo
5:04 pm - 11:25 am
PHL
-
EYW
18h 21m
1 stop
Multiple Airlines Logo
12:07 pm - 2:15 pm
EYW
-
PHL
26h 08m
1 stop
$405Multiple Airlines
Wed, May 13 - Mon, May 18
Multiple Airlines Logo
8:35 pm - 10:24 am
PHL
-
EYW
13h 49m
2 stops
Multiple Airlines Logo
12:07 pm - 7:51 pm
EYW
-
PHL
7h 44m
1 stop
$406Multiple Airlines
Sat, May 16 - Fri, May 22

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American Airlines flights from Philadelphia to Key West

Our best American Airlines deals on Philadelphia to Key West flight tickets
American Airlines
Aug 29
PHL10:35 amPhiladelphia
3h 10m
EYW1:45 pmKey West
Sep 5
EYW1:07 pmKey West
3h 10m
PHL4:17 pmPhiladelphia
$423
American Airlines
Aug 29
PHL6:04 amPhiladelphia
7h 01m
1 stop
EYW1:05 pmKey West
Sep 5
EYW1:07 pmKey West
3h 10m
PHL4:17 pmPhiladelphia
$433
American Airlines
May 26
PHL10:30 amPhiladelphia
3h 11m
EYW1:41 pmKey West
Jun 9
EYW5:37 pmKey West
3h 07m
PHL8:44 pmPhiladelphia
$454

Delta flights from Philadelphia to Key West

Our best Delta deals on Philadelphia to Key West flight tickets
Delta
Aug 29
PHL6:45 amPhiladelphia
7h 39m
1 stop
EYW2:24 pmKey West
Sep 1
EYW6:00 pmKey West
7h 01m
1 stop
PHL1:01 amPhiladelphia
$443
Delta
May 9
PHL2:23 pmPhiladelphia
5h 26m
1 stop
EYW7:49 pmKey West
May 16
EYW3:30 pmKey West
5h 19m
1 stop
PHL8:49 pmPhiladelphia
$505
Delta
May 6
PHL5:30 amPhiladelphia
5h 16m
1 stop
EYW10:46 amKey West
May 10
EYW7:30 amKey West
5h 48m
1 stop
PHL1:18 pmPhiladelphia
$531

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 29, 2026.
Use the filters below to find and compare flights from Philadelphia to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Fri 8/21

5:21 am-11:27 am

1 stop6h 06m

Key West

Mon 8/24

1:11 pm-10:29 pm

2 stops9h 18m

$383

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Fri 8/28

5:21 am-11:27 am

1 stop6h 06m

Key West

Mon 8/31

1:11 pm-10:29 pm

2 stops9h 18m

$384

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sat 6/20

9:16 pm-11:25 am

1 stop14h 09m

Key West

Sun 6/28

12:05 pm-8:08 pm

2 stops32h 03m

$385

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sat 6/20

7:22 pm-10:24 am

2 stops15h 02m

Key West

Mon 6/22

1:11 pm-1:17 am

1 stop12h 06m

$390

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Fri 5/29

5:21 am-11:27 am

1 stop6h 06m

Key West

Sun 5/31

12:05 pm-4:16 pm

2 stops28h 11m

$395

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Fri 7/31

5:38 pm-1:54 pm

2 stops20h 16m

Key West

Mon 8/3

12:07 pm-11:38 pm

1 stop11h 31m

$398

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Wed 5/13

5:04 pm-11:25 am

1 stop18h 21m

Key West

Sun 5/24

12:05 pm-7:18 pm

1 stop7h 13m

$400

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Thu 5/14

9:05 pm-11:27 am

1 stop14h 22m

Key West

Tue 5/26

1:14 pm-10:10 pm

2 stops8h 56m

$401

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Wed 5/13

5:04 pm-11:25 am

1 stop18h 21m

Key West

Mon 5/18

12:07 pm-2:15 pm

1 stop26h 08m

$405

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sat 5/16

8:35 pm-10:24 am

2 stops13h 49m

Key West

Fri 5/22

12:07 pm-7:51 pm

1 stop7h 44m

$406

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Key West from

How to get the cheapest flight ticket from Philadelphia to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Philadelphia and Key West?

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from Philadelphia to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $473. If you are unable to visit Key West during the month of August, then departing from Philadelphia during the month September is also very affordable. Most momondo users find prices during this month for around $515.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Philadelphia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $524. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Key West for around $655.

What is the cheapest Philadelphia to Key West flight route?

Fly from Philadelphia to Key West for the best Philadelphia - Key West flight prices

How far in advance should I book a flight from Philadelphia to Key West?

You are more likely to see cheaper flights to Key West from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $569 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Philadelphia for as low as $491 on momondo.

Can stopping save me money on Philadelphia to Key West flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Key West.

How have Philadelphia to Key West flight prices changed over time?

As of April 2026, prices for Philadelphia to Key West flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Philadelphia to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Key West (PHL to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Key West

Best Price Found

$352

Fastest flight time

3h 10m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from Philadelphia in the past 72 hours is $352. The best round-trip flight deal from Philadelphia to Key West found on momondo in the last 72 hours is $535.
The fastest flight from Philadelphia to Key West takes 3h 10m
Direct flights go from Philadelphia to Key West every day.
There is 1 airport in Key West. From Philadelphia there are direct flights to Key West (EYW).
Search flight deals

Frequently asked questions about flying from Philadelphia to Key West

  • How far is Philadelphia to Key West by plane?

    Philadelphia and Key West are 1131.0 mi apart from one another. 3h 10m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Philadelphia Airport to Key West Airport?

    Prices for flights from Philadelphia Airport to Key West Airport were last updated today.

  • How many operators does momondo search for flights from Philadelphia Airport to Key West Airport?

  • How old do you have to be to fly from Philadelphia Airport to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to Key West?

  • What is the most popular airline from Philadelphia to Key West?

Best airlines flying from Philadelphia to Key West

Compare and see reviews for airlines that fly from Philadelphia to Key West with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $157Free CancellationRating
6.3
8,631 reviews
Search Spirit Airlines flights
DeltaPriceFrom $402Free CancellationRating
7.9
8,465 reviews
Search Delta flights
American AirlinesPriceFrom $423Free CancellationRating
7.1
11,678 reviews
Search American Airlines flights

  • American Airlines Flights From Philadelphia to Key West

    The lowest priced American Airlines flight from Philadelphia to Key West from the last 72 hours was $423. Generally, American Airlines has 3 flights on this route every week with an average price of $580. American Airlines is rated 7.1/10 by our users.

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Key West?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Philadelphia to Key West for you.

Can I find flights from Philadelphia to Key West with flexible booking policies on momondo?

momondo does allow users to show only those flights to Key West from Philadelphia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Philadelphia to Key West?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Philadelphia.

I’m not ready to book a flight from Philadelphia to Key West right now. Can momondo alert me if prices change?

Price alerts on flights to Key West from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Key West trip

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