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$39+ Cheap flights from Key Largo, FL to Philadelphia (PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — PHL
janv. 26 — févr. 21
dim. 1/26
dim. 2/2
1 adult, Economy
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The best prices from Key Largo to Philadelphia are usually found in January or February, booked 90 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Key Largo to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated janvier 21, 2025.

Round-trip from

$77
(Cheapflightsfares)

One-way from

$39
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$88
From Key Largo to Philadelphia
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One-way flight from Key Largo to Philadelphia
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Highest demand for flights based on searches. 10% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Key Largo to Philadelphia

Cheapest flights from Key Largo to Philadelphia
Explore the most affordable flight options available from Key Largo to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 2/77:30 amMIA - PHL
Nonstop2h 54mFrontier
dim. 2/912:30 pmPHL - MIA
Nonstop2h 55mFrontier
Deal found 1/20$77
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 1/3110:12 amMIA - PHL
Nonstop3h 03mMultiple Airlines
sam. 2/16:00 amPHL - MIA
Nonstop2h 55mMultiple Airlines
Deal found 1/20$82
This Cheapflightsfares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 3/134:32 pmMIA - PHL
Nonstop3h 00mSpirit Airlines
lun. 3/176:30 amPHL - MIA
Nonstop2h 55mSpirit Airlines
Deal found 1/20$86

Find flights from Key Largo to Philadelphia within your budget

Customize your flight search to find flights from Key Largo 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, Cheapflights users made 2,558,603 searches. Data last updated janvier 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

ven. 2/7

7:30 am-10:24 am

Nonstop2h 54m

Philadelphia

dim. 2/9

12:30 pm-3:25 pm

Nonstop2h 55m

$77

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

ven. 1/31

7:21 pm-10:16 pm

Nonstop2h 55m

Philadelphia

lun. 2/3

6:00 am-8:55 am

Nonstop2h 55m

$80

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

ven. 1/31

10:12 am-1:15 pm

Nonstop3h 03m

Philadelphia

sam. 2/1

6:00 am-8:55 am

Nonstop2h 55m

$82

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

sam. 2/8

7:00 am-12:28 pm

1 stop5h 28m

Philadelphia

mar. 2/11

1:00 pm-9:42 pm

1 stop8h 42m

$234

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

mar. 2/25

12:04 pm-5:21 pm

1 stop5h 17m

Philadelphia

mar. 2/25

6:45 pm-12:33 am

1 stop5h 48m

$257

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

jeu. 1/30

3:27 pm-6:32 pm

Nonstop3h 05m

$39

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

ven. 2/14

5:00 pm-7:54 pm

Nonstop2h 54m

$43

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

mer. 2/19

6:00 am-12:06 pm

1 stop6h 06m

$100

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

mer. 2/12

12:25 pm-7:07 pm

1 stop6h 42m

$101

MiamiPhiladelphia

MIA - PHL

MIAPHL

Miami

mer. 2/5

1:50 pm-9:45 pm

1 stop7h 55m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Best time to book a flight from Key Largo to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Key Largo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Key Largo to Philadelphia

Get recent, data-driven insights about flights from Key Largo to Philadelphia including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Key Largo to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Philadelphia. Price data was last updated on January 17, 2025.

The best time to book flights from Key Largo to Philadelphia is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Key Largo to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Key Largo to Philadelphia (average of $236). Flying from Key Largo to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KE9 to PHL?

Find hourly flight availability from Key Largo to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated janvier 21, 2025.

When flying from Key Largo to Philadelphia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Key Largo to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Philadelphia. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Key Largo to Philadelphia flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Philadelphia

Explore weekly flight availability from Key Largo to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated janvier 21, 2025.

The most flights from KE9 to PHL are scheduled on a Monday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated janvier 21, 2025.
Get a feel of what it's like to fly with Frontier, Spirit Airlines and Delta from Key Largo to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,200 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Spirit Airlines
6.3
Okay
8,116 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Philadelphia from Key Largo?

    If you book a flight to Philadelphia from Key Largo, you will be flying to Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia. There are 23 flights from Key Largo to Philadelphia per day from 4 different airlines.

  • How popular is this Key Largo to Philadelphia flight route?

    Flights from Key Largo to Philadelphia have been viewed 63 times in the past calendar month.

  • What are the cheapest airlines to fly from Key Largo to Philadelphia one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $39. However, be on the lookout for offers from Spirit Airlines and Delta, as they are both options that can get you from Key Largo to Philadelphia for a low price.

  • What are the most reliable airlines from Key Largo to Philadelphia?

    Before booking your flight to Philadelphia from Key Largo, check out the most reliable airlines to get you to your destination on time: Aer Lingus (89%), Iberia (81%), British Airways( 80%).

  • What are the cheapest flights from Key Largo to Philadelphia?

    The cheapest flight price from Key Largo to Philadelphia is $42. On average you can expect to pay $943. The most popular route, (Miami - Philadelphia), can usually be booked for $80.

  • Can I find deals for flights from Key Largo to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Key Largo to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to Philadelphia.

  • Can I find deals for business class flights from Key Largo to Philadelphia?

    Yes. Cheapflights offers flight deals from Key Largo to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Key Largo to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Key Largo to Philadelphia (average of $236). Flying from Key Largo to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Key Largo?

Book flights to Key Largo if you plan to visit one of these locations
King of Prussia
Vineland
Wildwood
Pottstown
Reading
Cherry Hill
Exton
Ocean City
Essington
Chester
Willow Grove
Newark
Middletown
Millville
Wyomissing
Dover
Ephrata
Dewey Beach
West Chester
Malvern

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Top 4 airlines flying from Key Largo to Philadelphia

Discover the top 4 airlines that operate flights from Key Largo to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated janvier 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$119FlexibilityNo cancel feeOn-time65%
FrontierCheapest$48Average$112FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$147Average$363FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$310FlexibilityNo cancel feeOn-timeN/A
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