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Cheap flights from Key West to Philadelphia from $43

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 12/11. 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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Cheap round-trip flights

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Spirit Airlines Logo
12:15 pm - 7:51 pmEYW-PHL
7h 36m1 stop
Spirit Airlines Logo
6:00 am - 1:30 pmPHL-EYW
7h 30m1 stop
$159Spirit Airlines
Find Deal
Thu, Jan 15 - Mon, Jan 19
Spirit Airlines Logo
2:30 pm - 11:17 pmEYW-PHL
8h 47m1 stop
Spirit Airlines Logo
6:10 am - 1:30 pmPHL-EYW
7h 20m1 stop
$195Spirit Airlines
Find Deal
Sat, Dec 27 - Sat, Jan 3
Multiple Airlines Logo
8:55 am - 10:00 amEYW-PHL
25h 05m1 stop
Multiple Airlines Logo
5:15 am - 11:20 amPHL-EYW
6h 05m1 stop
$207Multiple Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
Multiple Airlines Logo
1:06 pm - 11:50 pmEYW-PHL
10h 44m2 stops
Multiple Airlines Logo
6:00 am - 12:26 pmPHL-EYW
6h 26m1 stop
$218Multiple Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
Multiple Airlines Logo
10:47 am - 9:17 amEYW-PHL
22h 30m2 stops
Multiple Airlines Logo
10:00 pm - 8:15 amPHL-EYW
10h 15m1 stop
$223Multiple Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
12:15 pm - 7:20 pmEYW-PHL
7h 05m1 stop
Multiple Airlines Logo
6:11 pm - 10:09 amPHL-EYW
39h 58m2 stops
$227Multiple Airlines
Find Deal
Thu, Jan 15 - Mon, Jan 19
Multiple Airlines Logo
10:47 am - 5:49 pmEYW-PHL
7h 02m1 stop
Multiple Airlines Logo
10:00 pm - 8:15 amPHL-EYW
10h 15m1 stop
$229Multiple Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
9:57 am - 11:16 pmEYW-PHL
37h 19m2 stops
Multiple Airlines Logo
5:15 am - 11:20 amPHL-EYW
6h 05m1 stop
$230Multiple Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
Spirit Airlines Logo
12:20 pm - 12:29 pmEYW-PHL
24h 09m2 stops
Spirit Airlines Logo
6:53 pm - 1:30 pmPHL-EYW
18h 37m1 stop
$231Spirit Airlines
Find Deal
Sun, Dec 7 - Fri, Dec 12
Spirit Airlines Logo
2:30 pm - 11:17 pmEYW-PHL
8h 47m1 stop
Spirit Airlines Logo
6:00 am - 1:30 pmPHL-EYW
7h 30m2 stops
$239Spirit Airlines
Find Deal
Sat, Dec 20 - Wed, Dec 24

Spirit Airlines flights from Key West to Philadelphia

Our best Spirit Airlines deals on Key West to Philadelphia flight tickets
Spirit Airlines
Jan 15
EYW12:15 pmKey West
7h 36m
1 stop
PHL7:51 pmPhiladelphia
Jan 19
PHL6:00 amPhiladelphia
7h 30m
1 stop
EYW1:30 pmKey West
$159
Find similar
Spirit Airlines
Dec 27
EYW2:30 pmKey West
8h 47m
1 stop
PHL11:17 pmPhiladelphia
Jan 3
PHL6:10 amPhiladelphia
7h 20m
1 stop
EYW1:30 pmKey West
$195
Find similar
Spirit Airlines
Dec 7
EYW12:20 pmKey West
24h 09m
2 stops
PHL12:29 pmPhiladelphia
Dec 12
PHL6:53 pmPhiladelphia
18h 37m
1 stop
EYW1:30 pmKey West
$231
Find similar

United Airlines flights from Key West to Philadelphia

Our best United Airlines deals on Key West to Philadelphia flight tickets
United Airlines
Jan 16
EYW2:25 pmKey West
31h 11m
2 stops
PHL9:36 pmPhiladelphia
Jan 19
PHL10:10 amPhiladelphia
30h 12m
2 stops
EYW4:22 pmKey West
$547
Find similar
United Airlines
Dec 22
EYW3:09 pmKey West
32h 21m
2 stops
PHL11:30 pmPhiladelphia
Dec 29
PHL2:50 pmPhiladelphia
25h 39m
1 stop
EYW4:29 pmKey West
$640
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 November 25, 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 1/15

12:15 pm-7:51 pm

1 stop7h 36m

Philadelphia

Mon 1/19

6:00 am-1:30 pm

1 stop7h 30m

$159

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Sat 12/27

2:30 pm-11:17 pm

1 stop8h 47m

Philadelphia

Sat 1/3

6:10 am-1:30 pm

1 stop7h 20m

$195

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Mon 12/8

8:55 am-10:00 am

1 stop25h 05m

Philadelphia

Thu 12/11

5:15 am-11:20 am

1 stop6h 05m

$207

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Fri 1/16

1:06 pm-11:50 pm

2 stops10h 44m

Philadelphia

Mon 1/19

6:00 am-12:26 pm

1 stop6h 26m

$218

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Wed 12/10

10:47 am-9:17 am

2 stops22h 30m

Philadelphia

Sun 12/14

10:00 pm-8:15 am

1 stop10h 15m

$223

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Thu 1/15

12:15 pm-7:20 pm

1 stop7h 05m

Philadelphia

Mon 1/19

6:11 pm-10:09 am

2 stops39h 58m

$227

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Wed 12/10

10:47 am-5:49 pm

1 stop7h 02m

Philadelphia

Sun 12/14

10:00 pm-8:15 am

1 stop10h 15m

$229

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Mon 12/8

9:57 am-11:16 pm

2 stops37h 19m

Philadelphia

Thu 12/11

5:15 am-11:20 am

1 stop6h 05m

$230

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Sun 12/7

12:20 pm-12:29 pm

2 stops24h 09m

Philadelphia

Fri 12/12

6:53 pm-1:30 pm

1 stop18h 37m

$231

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Sat 12/20

2:30 pm-11:17 pm

1 stop8h 47m

Philadelphia

Wed 12/24

6:00 am-1:30 pm

2 stops7h 30m

$239

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 June. Flight prices, which tend to average around $438, 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 $443.

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 $341. 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 $521.

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 $427. 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 $619.

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 3 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?

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

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

As of November 2025, prices for Key West to Philadelphia flights are approximately 8% cheaper 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

$262

Fastest flight time

2h 59m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Key West in the past 72 hours is $262. The best round-trip flight deal from Key West to Philadelphia found on momondo in the last 72 hours is $348.
The fastest flight from Key West to Philadelphia takes 2h 59m
Direct flights go from Key West to Philadelphia every day.
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 2h 57m.

  • 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 $423Free CancellationRating
7.2
11,038 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 $423 round-trip, up to an average price of $526. 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
Cherry Hill
Dewey Beach
Newark
Reading
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Essington
Vineland
Pottstown
New Castle
Somers Point

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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