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Key Largo

$160+ Cheap flights from Allentown (ABE) to Key Largo, FL

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — MIA
août 19 — août 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Allentown-Bethlehem to Key Largo are usually found in May or August, booked 45 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Allentown to Key Largo

Keep the following information in mind while searching for Allentown to Key Largo flight deals. Data was last updated août 14, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$160
(Kiwi.com)

Popular in

October

Cheapest in

May

Average price

$355
From Allentown-Bethlehem to Key Largo
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One-way flight from Allentown-Bethlehem to Key Largo
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Highest demand for flights based on searches. 11% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Allentown to Key Largo

Cheapest flights from Allentown to Key Largo
Explore the most affordable flight options available from Allentown to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on août 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/206:35 pmABE - MIA
1 stop5h 13mAmerican Airlines
jeu. 9/255:30 pmMIA - ABE
1 stop5h 19mAmerican Airlines
Deal found 8/12$179
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/92:37 pmABE - MIA
1 stop6h 39mAmerican Airlines
mar. 9/168:20 amMIA - ABE
1 stop5h 45mAmerican Airlines
Deal found 8/12$194
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/186:00 pmABE - MIA
1 stop6h 29mDelta
mar. 10/214:35 pmMIA - ABE
1 stop5h 40mDelta
Deal found 8/13$197
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 8/306:14 pmABE - MIA
1 stop6h 10mDelta
sam. 9/136:00 amMIA - ABE
1 stop6h 04mDelta
Deal found 8/14$228
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/146:00 pmABE - MIA
1 stop6h 29mDelta
mar. 10/214:35 pmMIA - ABE
1 stop5h 40mDelta
Deal found 8/13$238
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/272:56 pmABE - MIA
1 stop7h 12mAmerican Airlines
sam. 8/306:16 amMIA - ABE
1 stop7h 10mAmerican Airlines
Deal found 8/13$259
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/156:00 pmABE - MIA
1 stop6h 29mDelta
mar. 10/212:16 pmMIA - ABE
1 stop7h 59mDelta
Deal found 8/13$268
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/146:00 pmABE - MIA
1 stop6h 29mDelta
mer. 10/226:00 amMIA - ABE
1 stop6h 06mDelta
Deal found 8/13$279
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/44:30 pmABE - MIA
1 stop5h 38mAmerican Airlines
dim. 11/97:03 amMIA - ABE
1 stop6h 26mAmerican Airlines
Deal found 8/12$305
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/186:00 pmABE - MIA
1 stop6h 29mDelta
jeu. 10/236:00 amMIA - ABE
1 stop6h 06mDelta
Deal found 8/13$308
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/156:00 pmABE - MIA
1 stop6h 29mDelta
sam. 10/186:00 amMIA - ABE
1 stop6h 06mDelta
Deal found 8/13$309
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/176:00 pmABE - MIA
1 stop6h 29mDelta
mar. 10/212:16 pmMIA - ABE
1 stop7h 59mDelta
Deal found 8/13$312

Cheapflights Fare Finder

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

Fly from

Allentown

Fly to

Key Largo

Route

Depart

Return

Price

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

sam. 10/18

5:53 pm-12:29 am

1 stop6h 36m

Miami

sam. 10/25

6:20 am-1:26 pm

1 stop7h 06m

$179

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

lun. 9/22

7:00 pm-11:56 pm

1 stop4h 56m

Miami

mer. 10/1

4:02 pm-10:05 pm

1 stop6h 03m

$179

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

mer. 12/10

6:12 am-1:12 pm

1 stop7h 00m

Miami

sam. 12/13

6:00 am-10:46 am

1 stop4h 46m

$179

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

sam. 11/1

6:00 pm-12:29 am

1 stop6h 29m

Miami

mar. 11/4

4:35 pm-10:15 pm

1 stop5h 40m

$197

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

sam. 10/18

6:00 pm-12:29 am

1 stop6h 29m

Miami

mar. 10/21

2:16 pm-10:15 pm

1 stop7h 59m

$197

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

sam. 8/30

6:14 pm-12:24 am

1 stop6h 10m

Miami

sam. 9/13

6:00 am-12:04 pm

1 stop6h 04m

$228

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

mar. 10/28

6:00 pm-12:29 am

1 stop6h 29m

Miami

mar. 11/4

4:35 pm-10:15 pm

1 stop5h 40m

$238

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

lun. 10/27

6:00 pm-12:29 am

1 stop6h 29m

Miami

mar. 11/4

4:35 pm-10:15 pm

1 stop5h 40m

$238

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

mer. 10/29

6:00 pm-12:29 am

1 stop6h 29m

Miami

mar. 11/4

4:35 pm-10:15 pm

1 stop5h 40m

$238

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

sam. 11/1

6:00 pm-12:29 am

1 stop6h 29m

Miami

mer. 11/5

6:00 am-12:06 pm

1 stop6h 06m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 21 results
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Best time to book a flight from Allentown to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Allentown 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.

Cheapflights Insights

Everything you need to know about your flight from Allentown to Key Largo

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

Use this chart to determine the optimal time to book a round-trip flight from Allentown to Key Largo. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Allentown to Key Largo, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Allentown to Key Largo (average of $232). Flying from Allentown to Key Largo in March is currently the most expensive (average of $289). 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 ABE to KE9?

Find hourly flight availability from Allentown to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated août 14, 2025.

When flying from Allentown to Key Largo, 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 Allentown to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Allentown to Key Largo. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated août 14, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Allentown to Key Largo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Allegiant Air
7.2
Good
701 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Frontier
5.8
Fair
3,219 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Related info for your journey

Find useful and relevant information for your journey from Allentown to Key Largo. 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 from for flights from Allentown to Key Largo?

    Allentown-Bethlehem (ABE) is the airport you will fly out of if you book a flight from Allentown to Key Largo. You should not have trouble finding flights to Key Largo from Allentown-Bethlehem; the airport handles an average of 0 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Allentown airport to Key Largo. It is only a 3.9 mi journey to Allentown-Bethlehem (ABE) from Allentown’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Allentown to Key Largo 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 Allentown to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Allentown to Key Largo (average of $232). Flying from Allentown to Key Largo in March is currently the most expensive (average of $289). 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

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Top 6 airlines flying from Allentown to Key Largo

Discover the top 6 airlines that operate flights from Allentown to Key Largo. 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 août 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$47Average$118FlexibilityNo cancel feeOn-time65%
FrontierCheapest$49Average$141FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$57Average$193FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$187Average$419FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$193Average$358FlexibilityNo cancel feeOn-time69%
DeltaCheapest$208Average$442FlexibilityNo cancel feeOn-timeN/A

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