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Key Largo

$109+ Cheap flights from McAllen (MFE) 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — MIA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from McAllen to Key Largo

Cheapest flights from McAllen to Key Largo
Explore the most affordable flight options available from McAllen to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:45 amMFE - MIA
1 stop8h 00mUnited Airlines
Mon 12/2911:56 amMIA - MFE
1 stop6h 54mUnited Airlines
Deal found 12/16$410
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/245:35 amMFE - MIA
1 stop5h 49mAmerican Airlines
Mon 12/297:01 amMIA - MFE
1 stop8h 53mAmerican Airlines
Deal found 12/16$439
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:00 amMFE - MIA
1 stop4h 54mUnited Airlines
Sat 12/204:43 pmMIA - MFE
1 stop7h 42mUnited Airlines
Deal found 12/16$441
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:00 amMFE - MIA
1 stop4h 54mUnited Airlines
Sun 12/2111:56 amMIA - MFE
1 stop6h 54mUnited Airlines
Deal found 12/16$489
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/172:42 pmMFE - MIA
1 stop8h 00mAmerican Airlines
Fri 12/195:00 amMIA - MFE
1 stop6h 31mAmerican Airlines
Deal found 12/16$538
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/255:30 amMFE - MIA
2 stops9h 05mAmerican Airlines
Thu 12/255:34 pmMIA - MFE
1 stop6h 25mAmerican Airlines
Deal found 12/16$572
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/284:59 pmMFE - MIA
1 stop6h 38mAmerican Airlines
Thu 1/18:45 amMIA - MFE
1 stop8h 28mAmerican Airlines
Deal found 12/17$573
This Delta deal was found by Cheapflights users on 12/16. 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 12/2412:38 pmMFE - MIA
2 stops10h 53mDelta
Mon 12/296:00 amMIA - MFE
2 stops11h 35mDelta
Deal found 12/16$663
This Delta deal was found by Cheapflights users on 12/16. 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.
Thu 12/255:25 amMFE - MIA
1 stop6h 17mDelta
Thu 12/257:21 pmMIA - MFE
1 stop5h 37mDelta
Deal found 12/16$697
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:00 amMFE - MIA
2 stops14h 14mUnited Airlines
Fri 12/198:45 amMIA - MFE
1 stop5h 45mUnited Airlines
Deal found 12/16$704

Find flight deals from McAllen to Key Largo

Keep the following information in mind while searching for McAllen to Key Largo flight deals. Data was last updated December 18, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$217
(Delta)

One-way from

$109
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$842
Provider with most accurate pricing for McAllen Miller Intl-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for McAllen Miller Intl-Miami flights.
Search Deals
From McAllen Miller Intl to Key Largo
Search Deals
One-way flight from McAllen Miller Intl to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from McAllen 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 December 18, 2025.
Use the filters below to find and compare flights from McAllen to Key Largo that are best for you.

Fly from

McAllen

Fly to

Key Largo

Route

Depart

Return

Price

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 1/15

5:25 am-12:40 pm

1 stop6h 15m

Miami

Thu 1/22

7:15 pm-11:57 pm

1 stop5h 42m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Wed 1/28

6:04 am-12:26 pm

1 stop5h 22m

Miami

Sat 1/31

9:15 am-5:04 pm

1 stop8h 49m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 1/15

9:30 am-6:25 pm

1 stop7h 55m

Miami

Thu 1/22

9:05 am-4:07 pm

1 stop8h 02m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Fri 1/23

5:25 am-12:40 pm

1 stop6h 15m

Miami

Thu 1/29

7:15 pm-11:57 pm

1 stop5h 42m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Fri 1/16

5:56 pm-12:58 am

1 stop6h 02m

Miami

Fri 1/23

9:55 am-5:04 pm

1 stop8h 09m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Wed 2/4

5:25 am-12:40 pm

1 stop6h 15m

Miami

Fri 2/20

7:15 pm-11:57 pm

1 stop5h 42m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Fri 2/6

5:56 pm-12:58 am

1 stop6h 02m

Miami

Mon 2/9

6:04 am-11:30 am

1 stop6h 26m

$221

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Wed 1/28

5:25 am-12:40 pm

1 stop6h 15m

Miami

Sat 1/31

7:15 am-5:13 pm

2 stops10h 58m

$222

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Mon 1/19

7:00 am-1:30 pm

1 stop5h 30m

$109

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 1/29

5:25 am-12:40 pm

1 stop6h 15m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 17 results
1
2

Best time to book a flight from McAllen to Key Largo

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

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

Currently, April is the cheapest month in which you can book a flight from McAllen to Key Largo (average of $198). Flying from McAllen to Key Largo in March is currently the most expensive (average of $290). 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 MFE to KE9?

Find hourly flight availability from McAllen 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 December 18, 2025.

One of the essential ways to save on airfare from McAllen to Key Largo is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 41% on airfare.

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 December 18, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from McAllen to Key Largo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
8,005 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
9,091 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
11,054 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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 McAllen 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 McAllen to Key Largo?

    If you book a flight to Key Largo from McAllen, you will be flying from Miller Intl, which is the city’s only airport. McAllen Miller Intl (MFE) is located 2.0 mi from the center of McAllen. There are 0 flights from Miller Intl to Key Largo per day from 3 different airlines.

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

    For as low as $217, Delta can have you in Key Largo from McAllen in 5h 22m. The distance between McAllen and Key Largo is about 1114 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from McAllen to Key Largo (average of $198). Flying from McAllen to Key Largo in March is currently the most expensive (average of $290). 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 3 airlines flying from McAllen to Key Largo

Discover the top 3 airlines that operate flights from McAllen 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$189Average$349FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$355FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$421FlexibilityNo cancel feeOn-time69%

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