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Cheap flights from Key West to Philadelphia from $118

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Philadelphia departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Key West to Philadelphia

Cheap round-trip flights

Logo
3:30 pm - 11:47 pmEYW-PHL
8h 17m1 stop
Logo
8:50 pm - 2:40 pmPHL-EYW
17h 50m1 stop
$249
Find Deal
Thu, Oct 9 - Sat, Oct 11
Logo
3:30 pm - 1:13 amEYW-PHL
9h 43m1 stop
Logo
5:05 am - 2:40 pmPHL-EYW
9h 35m1 stop
$270
Find Deal
Thu, Oct 9 - Sun, Oct 12
Logo
3:30 pm - 11:47 pmEYW-PHL
8h 17m1 stop
Logo
6:26 pm - 4:04 pmPHL-EYW
21h 38m2 stops
$285
Find Deal
Thu, Oct 9 - Sat, Oct 11
Logo
4:54 pm - 9:46 amEYW-PHL
16h 52m2 stops
Logo
5:05 am - 2:40 pmPHL-EYW
9h 35m1 stop
$317
Find Deal
Thu, Oct 9 - Sun, Oct 12
American Airlines Logo
4:53 pm - 7:55 pmEYW-PHL
3h 02mnonstop
American Airlines Logo
10:40 am - 1:52 pmPHL-EYW
3h 12mnonstop
$443American Airlines
Find Deal
Thu, Oct 9 - Sat, Oct 11
American Airlines Logo
4:53 pm - 7:55 pmEYW-PHL
3h 02mnonstop
American Airlines Logo
12:38 pm - 7:22 pmPHL-EYW
6h 44m1 stop
$453American Airlines
Find Deal
Thu, Oct 9 - Sat, Oct 11
Delta Logo
7:00 am - 1:35 pmEYW-PHL
6h 35m1 stop
Delta Logo
12:17 pm - 8:07 pmPHL-EYW
7h 50m1 stop
$483Delta
Find Deal
Fri, Sep 12 - Fri, Sep 19
United Airlines Logo
3:50 pm - 9:31 pmEYW-PHL
29h 41m2 stops
United Airlines Logo
10:30 am - 2:55 pmPHL-EYW
28h 25m2 stops
$578United Airlines
Find Deal
Fri, Sep 5 - Sun, Sep 7
Delta Logo
2:00 pm - 7:54 pmEYW-PHL
5h 54m1 stop
Delta Logo
2:35 pm - 8:12 pmPHL-EYW
5h 37m1 stop
$639Delta
Find Deal
Fri, Aug 29 - Mon, Sep 1
United Airlines Logo
3:12 pm - 2:04 pmEYW-PHL
22h 52m2 stops
United Airlines Logo
7:58 pm - 2:29 pmPHL-EYW
18h 31m2 stops
$763United Airlines
Find Deal
Thu, Oct 9 - Sun, Oct 12

American Airlines flights from Key West to Philadelphia

Our best American Airlines deals on Key West to Philadelphia flight tickets
American Airlines
Oct 9
EYW4:53 pmKey West
3h 02m
PHL7:55 pmPhiladelphia
Oct 11
PHL10:40 amPhiladelphia
3h 12m
EYW1:52 pmKey West
$443
Find similar
American Airlines
Oct 9
EYW4:53 pmKey West
3h 02m
PHL7:55 pmPhiladelphia
Oct 11
PHL12:38 pmPhiladelphia
6h 44m
1 stop
EYW7:22 pmKey West
$453
Find similar
American Airlines
Sep 12
EYW7:31 pmKey West
4h 47m
1 stop
PHL12:18 amPhiladelphia
Sep 19
PHL10:35 amPhiladelphia
3h 25m
EYW2:00 pmKey West
$473
Find similar

United Airlines flights from Key West to Philadelphia

Our best United Airlines deals on Key West to Philadelphia flight tickets
United Airlines
Sep 5
EYW3:50 pmKey West
29h 41m
2 stops
PHL9:31 pmPhiladelphia
Sep 7
PHL10:30 amPhiladelphia
28h 25m
2 stops
EYW2:55 pmKey West
$578
Find similar
United Airlines
Oct 9
EYW3:12 pmKey West
22h 52m
2 stops
PHL2:04 pmPhiladelphia
Oct 12
PHL7:58 pmPhiladelphia
18h 31m
2 stops
EYW2:29 pmKey West
$763
Find similar
United Airlines
Sep 12
EYW3:50 pmKey West
20h 06m
2 stops
PHL11:56 amPhiladelphia
Sep 19
PHL6:27 pmPhiladelphia
19h 44m
2 stops
EYW2:11 pmKey West
$812
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Key West to Philadelphia 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 August 14, 2025.
Use the filters below to find and compare flights from Key West to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 10/9

3:30 pm-11:47 pm

1 stop8h 17m

Philadelphia

Sat 10/11

8:50 pm-2:40 pm

1 stop17h 50m

$249

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 10/9

3:30 pm-1:13 am

1 stop9h 43m

Philadelphia

Sun 10/12

5:05 am-2:40 pm

1 stop9h 35m

$270

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 10/9

3:30 pm-11:47 pm

1 stop8h 17m

Philadelphia

Sat 10/11

6:26 pm-4:04 pm

2 stops21h 38m

$285

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 10/9

4:54 pm-9:46 am

2 stops16h 52m

Philadelphia

Sun 10/12

5:05 am-2:40 pm

1 stop9h 35m

$317

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 10/9

4:53 pm-7:55 pm

Nonstop3h 02m

Philadelphia

Sat 10/11

10:40 am-1:52 pm

Nonstop3h 12m

$443

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 10/9

4:53 pm-7:55 pm

Nonstop3h 02m

Philadelphia

Sat 10/11

12:38 pm-7:22 pm

1 stop6h 44m

$453

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Fri 9/12

7:00 am-1:35 pm

1 stop6h 35m

Philadelphia

Fri 9/19

12:17 pm-8:07 pm

1 stop7h 50m

$483

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Fri 9/5

3:50 pm-9:31 pm

2 stops29h 41m

Philadelphia

Sun 9/7

10:30 am-2:55 pm

2 stops28h 25m

$578

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Fri 8/29

2:00 pm-7:54 pm

1 stop5h 54m

Philadelphia

Mon 9/1

2:35 pm-8:12 pm

1 stop5h 37m

$639

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 10/9

3:12 pm-2:04 pm

2 stops22h 52m

Philadelphia

Sun 10/12

7:58 pm-2:29 pm

2 stops18h 31m

$763

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 Philadelphia from

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

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 cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Key West is in November. Flight prices, which tend to average around $408, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Philadelphia, with average flight prices from Key West averaging around $420.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Key West to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $347. On the other hand, Monday is the most expensive day to depart from Key West because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $540.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the afternoon. momondo users have found flights departing from Key West to Philadelphia in the afternoon for as low as $431. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is at noon when prices are around $559.

What is the cheapest Key West to Philadelphia flight route?

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

What cabin class options are available on Key West to Philadelphia flights?

There are 2 cabin classes available to choose from on Key West to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 11% on your flight if you consider stops on a Key West to Philadelphia flight.

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

As of August 2025, prices for Key West to Philadelphia flights are approximately 106% more expensive when compared to flights at the same time last year.

When to book flights from Key West to Philadelphia

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

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

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

Best Price Found

$118

Fastest flight time

3h 02m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Key West in the past 72 hours is $118. The best round-trip flight deal from Key West to Philadelphia found on momondo in the last 72 hours is $249.
The fastest flight from Key West to Philadelphia takes 3h 02m
Direct flights go from Key West to Philadelphia on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is American Airlines.
There is 1 airport near Philadelphia: Philadelphia (PHL)
Search flight deals

  • How far is Key West to Philadelphia by plane?

    The straight-line distance from Key West to Philadelphia is 1131.0 mi. A reasonable flight in good conditions will take 3h 02m.

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

    Prices for flights from Key West Airport to Philadelphia Airport refresh daily.

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

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

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

    The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from Key West to Philadelphia

Compare and see reviews for airlines that fly from Key West to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $333Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • American Airlines Flights From Key West to Philadelphia

    American Airlines is one of the most popular airlines flying from Key West to Philadelphia, operating 6 flights/week on average for this route. A good American Airlines flight deal for Key West to Philadelphia starts from $333 round-trip, up to an average price of $518. Our users have rated American Airlines at 7.2/10.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Reading
Dewey Beach
Newark
Cherry Hill
North Wildwood
Dover
Lewes
Avalon
Stone Harbor
Vineland
Essington
Exton
New Castle
Pottstown

Why use momondo?

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

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 Key West to Philadelphia for you.

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

Flights from Key West to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Key West to Philadelphia.

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

Yes momondo offers price alerts on flights to Philadelphia from Key West. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Philadelphia trip

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