Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Philadelphia to Key West from $93

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 1/14. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Philadelphia to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
5:35 am - 11:20 amPHL-EYW
5h 45m1 stop
Spirit Airlines Logo
2:30 pm - 11:16 pmEYW-PHL
8h 46m1 stop
$185Spirit Airlines
Find Deal
Thu, Dec 11 - Sat, Dec 13
Multiple Airlines Logo
5:59 pm - 11:05 amPHL-EYW
17h 06m1 stop
Multiple Airlines Logo
8:36 pm - 5:55 pmEYW-PHL
21h 19m1 stop
$190Multiple Airlines
Find Deal
Mon, Nov 10 - Thu, Nov 13
Multiple Airlines Logo
7:29 pm - 9:11 amPHL-EYW
13h 42m1 stop
Multiple Airlines Logo
11:45 am - 10:34 amEYW-PHL
22h 49m1 stop
$192Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
5:59 pm - 11:05 amPHL-EYW
17h 06m1 stop
Multiple Airlines Logo
10:59 am - 5:55 pmEYW-PHL
6h 56m1 stop
$194Multiple Airlines
Find Deal
Mon, Nov 10 - Thu, Nov 13
Multiple Airlines Logo
5:01 am - 12:26 pmPHL-EYW
7h 25m1 stop
Multiple Airlines Logo
3:46 pm - 12:41 amEYW-PHL
8h 55m1 stop
$196Multiple Airlines
Find Deal
Mon, Jan 12 - Thu, Jan 15
Multiple Airlines Logo
7:38 pm - 10:19 amPHL-EYW
14h 41m1 stop
Multiple Airlines Logo
2:24 pm - 11:25 pmEYW-PHL
9h 01m1 stop
$197Multiple Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
Spirit Airlines Logo
5:15 am - 1:30 pmPHL-EYW
8h 15m1 stop
Spirit Airlines Logo
2:25 pm - 12:32 amEYW-PHL
10h 07m1 stop
$199Spirit Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
3:59 pm - 11:05 amPHL-EYW
19h 06m1 stop
Multiple Airlines Logo
10:47 am - 6:38 pmEYW-PHL
7h 51m1 stop
$203Multiple Airlines
Find Deal
Mon, Nov 10 - Sat, Nov 15
Multiple Airlines Logo
10:00 pm - 8:15 amPHL-EYW
10h 15m1 stop
Multiple Airlines Logo
8:55 am - 11:34 pmEYW-PHL
14h 39m1 stop
$213Multiple Airlines
Find Deal
Sun, Dec 7 - Fri, Dec 12
Multiple Airlines Logo
5:01 am - 4:06 pmPHL-EYW
11h 05m1 stop
Multiple Airlines Logo
8:55 am - 2:46 pmEYW-PHL
5h 51m1 stop
$214Multiple Airlines
Find Deal
Mon, Dec 22 - Thu, Dec 25

Spirit Airlines flights from Philadelphia to Key West

Our best Spirit Airlines deals on Philadelphia to Key West flight tickets
Spirit Airlines
Dec 11
PHL5:35 amPhiladelphia
5h 45m
1 stop
EYW11:20 amKey West
Dec 13
EYW2:30 pmKey West
8h 46m
1 stop
PHL11:16 pmPhiladelphia
$185
Find similar
Spirit Airlines
Jan 9
PHL5:15 amPhiladelphia
8h 15m
1 stop
EYW1:30 pmKey West
Jan 12
EYW2:25 pmKey West
10h 07m
1 stop
PHL12:32 amPhiladelphia
$199
Find similar
Spirit Airlines
Dec 11
PHL5:35 amPhiladelphia
5h 45m
1 stop
EYW11:20 amKey West
Dec 13
EYW2:30 pmKey West
21h 59m
2 stops
PHL12:29 pmPhiladelphia
$240
Find similar

American Airlines flights from Philadelphia to Key West

Our best American Airlines deals on Philadelphia to Key West flight tickets
American Airlines
Oct 31
PHL6:00 amPhiladelphia
6h 55m
1 stop
EYW12:55 pmKey West
Nov 2
EYW5:09 pmKey West
3h 00m
PHL8:09 pmPhiladelphia
$531
Find similar
American Airlines
Oct 21
PHL10:40 amPhiladelphia
3h 12m
EYW1:52 pmKey West
Oct 25
EYW4:58 pmKey West
3h 02m
PHL8:00 pmPhiladelphia
$549
Find similar
American Airlines
Oct 21
PHL10:45 amPhiladelphia
6h 31m
1 stop
EYW5:16 pmKey West
Oct 25
EYW4:58 pmKey West
3h 02m
PHL8:00 pmPhiladelphia
$559
Find similar

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 October 20, 2025.
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

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Thu 12/11

5:35 am-11:20 am

1 stop5h 45m

Key West

Sat 12/13

2:30 pm-11:16 pm

1 stop8h 46m

$185

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Mon 11/10

5:59 pm-11:05 am

1 stop17h 06m

Key West

Thu 11/13

8:36 pm-5:55 pm

1 stop21h 19m

$190

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Tue 11/11

7:29 pm-9:11 am

1 stop13h 42m

Key West

Tue 11/18

11:45 am-10:34 am

1 stop22h 49m

$192

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Mon 11/10

5:59 pm-11:05 am

1 stop17h 06m

Key West

Thu 11/13

10:59 am-5:55 pm

1 stop6h 56m

$194

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Mon 1/12

5:01 am-12:26 pm

1 stop7h 25m

Key West

Thu 1/15

3:46 pm-12:41 am

1 stop8h 55m

$196

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sat 11/15

7:38 pm-10:19 am

1 stop14h 41m

Key West

Sat 11/22

2:24 pm-11:25 pm

1 stop9h 01m

$197

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Fri 1/9

5:15 am-1:30 pm

1 stop8h 15m

Key West

Mon 1/12

2:25 pm-12:32 am

1 stop10h 07m

$199

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Mon 11/10

3:59 pm-11:05 am

1 stop19h 06m

Key West

Sat 11/15

10:47 am-6:38 pm

1 stop7h 51m

$203

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sun 12/7

10:00 pm-8:15 am

1 stop10h 15m

Key West

Fri 12/12

8:55 am-11:34 pm

1 stop14h 39m

$213

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Mon 12/22

5:01 am-4:06 pm

1 stop11h 05m

Key West

Thu 12/25

8:55 am-2:46 pm

1 stop5h 51m

$214

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 $463. If you are unable to visit Key West during the month of August, then departing from Philadelphia during the month July is also very affordable. Most momondo users find prices during this month for around $503.

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 $513. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Key West for around $622.

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

According to our data, the cheapest time of day to fly to Key West is at noon. momondo users have found flights departing from Philadelphia to Key West at noon for as low as $496. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the morning, with an average ticket price of $563. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 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 $550 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 $489 on momondo.

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

There are 3 cabin classes available to choose from on Philadelphia to Key West 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 Philadelphia to Key West flights?

You could potentially save up to 33% on your flight if you consider stops on a Philadelphia to Key West flight.

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

As of October 2025, prices for Philadelphia to Key West flights are approximately 40% 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

$266

Fastest flight time

3h 07m

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 $266. The best round-trip flight deal from Philadelphia to Key West found on momondo in the last 72 hours is $507.
The fastest flight from Philadelphia to Key West takes 3h 07m
Direct flights go from Philadelphia to Key West every day.
There is 1 airport near Key West: Key West (EYW)
Search flight deals

  • How far is Philadelphia to Key West by plane?

    Philadelphia and Key West are 1131.0 mi apart from one another. 5h 07m 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
DeltaPriceFrom $268Free CancellationRating
7.9
7,978 reviews
Search Delta flights
United AirlinesPriceFrom $390Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights
American AirlinesPriceFrom $423Free CancellationRating
7.2
11,024 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 7 flights on this route every week with an average price of $562. American Airlines is rated 7.2/10 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 11/19
Wed 11/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States