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Key Largo

$152+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — MIA
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
1 adult, Economy
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Cheap 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 February 27, 2026.

This Delta deal was found by Cheapflights users on 2/26. 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.
Tue 4/75:58 pm
ABE
-
MIA
1 stop6h 54m
Delta
Wed 4/154:43 pm
MIA
-
ABE
1 stop6h 17m
Delta
Deal found 2/26$214
This Delta deal was found by Cheapflights users on 2/23. 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.
Wed 3/255:58 pm
ABE
-
MIA
1 stop6h 54m
Delta
Wed 4/16:00 am
MIA
-
ABE
1 stop6h 16m
Delta
Deal found 2/23$219
This American Airlines deal was found by Cheapflights users on 2/24. 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.
Tue 3/2412:45 pm
ABE
-
MIA
1 stop6h 58m
American Airlines
Tue 3/316:24 pm
MIA
-
ABE
1 stop5h 07m
American Airlines
Deal found 2/24$229
This Delta deal was found by Cheapflights users on 2/23. 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.
Tue 4/2112:53 pm
ABE
-
MIA
1 stop7h 55m
Delta
Wed 4/297:04 am
MIA
-
ABE
1 stop5h 08m
Delta
Deal found 2/23$234
This Delta deal was found by Cheapflights users on 2/26. 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.
Tue 4/145:59 pm
ABE
-
MIA
1 stop6h 55m
Delta
Sat 4/187:04 am
MIA
-
ABE
1 stop5h 08m
Delta
Deal found 2/26$249
This Delta deal was found by Cheapflights users on 2/25. 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.
Sat 4/115:58 pm
ABE
-
MIA
1 stop6h 54m
Delta
Wed 4/154:43 pm
MIA
-
ABE
1 stop6h 17m
Delta
Deal found 2/25$259
This Delta deal was found by Cheapflights users on 2/23. 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.
Tue 3/106:32 am
ABE
-
MIA
1 stop7h 38m
Delta
Wed 3/187:05 am
MIA
-
ABE
1 stop5h 11m
Delta
Deal found 2/23$264
This Delta deal was found by Cheapflights users on 2/25. 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.
Tue 3/246:32 am
ABE
-
MIA
1 stop5h 37m
Delta
Tue 3/314:44 pm
MIA
-
ABE
1 stop6h 12m
Delta
Deal found 2/25$274
This Delta deal was found by Cheapflights users on 2/25. 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.
Sat 4/255:59 pm
ABE
-
MIA
1 stop6h 55m
Delta
Sat 5/26:00 am
MIA
-
ABE
1 stop6h 12m
Delta
Deal found 2/25$289
This American Airlines deal was found by Cheapflights users on 2/25. 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.
Tue 4/146:00 am
ABE
-
MIA
1 stop7h 12m
American Airlines
Tue 4/215:30 pm
MIA
-
ABE
1 stop5h 58m
American Airlines
Deal found 2/25$297
This Delta deal was found by Cheapflights users on 2/24. 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.
Sat 3/285:58 pm
ABE
-
MIA
1 stop6h 54m
Delta
Tue 4/77:05 am
MIA
-
ABE
1 stop5h 11m
Delta
Deal found 2/24$309
This Delta deal was found by Cheapflights users on 2/26. 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.
Tue 4/145:59 pm
ABE
-
MIA
1 stop6h 55m
Delta
Wed 4/2212:12 pm
MIA
-
ABE
1 stop5h 07m
Delta
Deal found 2/26$314

Find 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 February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$214
(Delta)

One-way from

$152
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$390
Provider with most accurate pricing for New York (NYC)-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Miami flights.
Search Deals
From Allentown-Bethlehem to Key Largo
Search Deals
One-way flight from Allentown-Bethlehem to Key Largo
Search Deals
High demand for flights, 5% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 27, 2026.
Use the filters below to find and compare flights from Allentown to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Wed 3/25

5:58 pm-12:52 am

1 stop6h 54m

Miami

Wed 4/1

7:05 am-12:16 pm

1 stop5h 11m

$356

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Sat 5/16

6:15 pm-12:43 am

1 stop6h 28m

Miami

Sun 5/24

6:00 am-12:19 pm

1 stop6h 19m

$358

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Fri 5/29

2:23 pm-10:27 pm

1 stop8h 04m

Miami

Mon 6/1

4:06 pm-9:38 am

1 stop17h 32m

$495

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Tue 3/10

6:20 am-1:15 pm

1 stop6h 55m

Miami

Fri 3/13

2:21 pm-9:56 am

1 stop19h 35m

$542

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Sat 4/4

5:58 pm-12:52 am

1 stop6h 54m

Miami

Sat 4/11

6:00 am-12:16 pm

1 stop6h 16m

$544

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Thu 5/14

2:15 pm-10:33 pm

1 stop8h 18m

Miami

Mon 5/18

4:52 pm-9:48 am

2 stops16h 56m

$590

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Mon 3/9

12:56 pm-6:28 pm

1 stop5h 32m

Miami

Sat 3/14

7:05 am-12:11 pm

1 stop5h 06m

$591

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Fri 8/14

2:30 pm-10:17 pm

1 stop7h 47m

Miami

Sun 8/23

5:00 pm-10:06 am

2 stops17h 06m

$613

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Fri 3/27

6:32 am-8:50 pm

1 stop14h 18m

Miami

Fri 4/3

10:26 am-5:17 pm

1 stop6h 51m

$621

AllentownMiami

ABE - MIA

ABEMIA

Allentown-Bethlehem

Tue 4/21

5:38 pm-11:09 am

3 stops17h 31m

Miami

Wed 4/29

6:00 pm-9:48 am

2 stops15h 48m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 February 20, 2026.

To ensure you get the cheapest price possible for a flight from Allentown to Key Largo, you should look to book at least 46 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, January is the cheapest month in which you can book a flight from Allentown to Key Largo (average of $24). Flying from Allentown to Key Largo in June is currently the most expensive (average of $86). 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 February 27, 2026.

A simple way to save on the total cost of your ticket is to fly from Allentown to Key Largo in the afternoon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Allentown to Key Largo?

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 February 27, 2026.
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
7.9
Good
8,243 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.2

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
7.9
Good
8,243 reviews
Delta
7.9
Good
8,243 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.2

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
9,350 reviews
Delta
7.9
Good
8,243 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.2

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
11,355 reviews
Delta
7.9
Good
8,243 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.2

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
715 reviews
Delta
7.9
Good
8,243 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.2

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
5.7
Fair
3,041 reviews
Delta
7.9
Good
8,243 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.2

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 7 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.

  • How long is the flight from Allentown to Key Largo?

    Departing from Allentown to Key Largo will take you 6h 54m. Allentown and Key Largo are separated by a distance of 1063 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, January is the cheapest month in which you can book a flight from Allentown to Key Largo (average of $24). Flying from Allentown to Key Largo in June is currently the most expensive (average of $86). 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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Alternative routes for Allentown to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Allentown to Key Largo

Discover the top 7 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 February 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$24Average$145FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$37Average$126FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$59Average$249FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$139Average$390FlexibilityNo cancel feeOn-time71%
DeltaCheapest$168Average$481FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$198Average$326FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$213Average$232FlexibilityNo cancel feeOn-time62%

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