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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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — MIA
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheapflights Tip: The best prices from McAllen Miller Intl to Key Largo are usually found in January or September, booked 67 days in advance, depart on a Tuesday or Friday and return on a Sunday

Cheap 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 August 1, 2025.

Round-trip from

$217
(American Airlines)

One-way from

$109
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$386
From McAllen Miller Intl to Key Largo
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One-way flight from McAllen Miller Intl to Key Largo
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Highest demand for flights based on searches. 12% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 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 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 August 1, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 9/226:23 pmMFE - MIA
1 stop6h 09mAmerican Airlines
Thu 9/2511:17 amMIA - MFE
1 stop7h 03mAmerican Airlines
Deal found 7/30$217
This Delta deal was found by Cheapflights users on 7/30. 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 8/205:17 pmMFE - MIA
2 stops12h 10mDelta
Wed 8/272:45 pmMIA - MFE
2 stops10h 14mDelta
Deal found 7/30$237
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 9/225:00 amMFE - MIA
2 stops13h 11mUnited Airlines
Thu 9/254:56 pmMIA - MFE
1 stop6h 01mUnited Airlines
Deal found 7/31$353
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:49 pmMFE - MIA
3 stops27h 15mMultiple Airlines
Thu 9/253:50 pmMIA - MFE
2 stops21h 44mMultiple Airlines
Deal found 7/31$388

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 August 1, 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

Mon 9/22

6:23 pm-1:32 am

1 stop6h 09m

Miami

Thu 9/25

11:17 am-5:20 pm

1 stop7h 03m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Wed 8/20

5:17 pm-6:27 am

2 stops12h 10m

Miami

Wed 8/27

2:45 pm-11:59 pm

2 stops10h 14m

$237

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Mon 9/22

5:00 am-7:11 pm

2 stops13h 11m

Miami

Thu 9/25

4:56 pm-9:57 pm

1 stop6h 01m

$353

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Mon 9/22

1:49 pm-6:04 pm

3 stops27h 15m

Miami

Thu 9/25

3:50 pm-12:34 pm

2 stops21h 44m

$388

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 9/25

10:49 am-6:25 pm

1 stop6h 36m

$109

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Tue 8/19

5:17 pm-6:27 am

2 stops12h 10m

$124

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Wed 8/20

2:49 pm-10:14 am

3 stops18h 25m

$199

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Fri 8/8

2:14 pm-10:39 pm

1 stop7h 25m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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

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

Use this chart to determine the optimal time to book a round-trip flight from McAllen to Key Largo. Price data was last updated on July 25, 2025.

The price you pay for your flight from McAllen to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from McAllen to Key Largo (average of $232). Flying from McAllen 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 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 August 1, 2025.

When flying from McAllen 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.

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 August 1, 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
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

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
8.0
Very good
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

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
8,904 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

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
10,000 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

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 2 different airlines.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $109. Users have also found prices from $124 and $323 on Delta and United Airlines, respectively.

  • 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, September is the cheapest month in which you can book a flight from McAllen to Key Largo (average of $232). Flying from McAllen 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 2 airlines flying from McAllen to Key Largo

Discover the top 2 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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$257Average$413FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$446FlexibilityNo cancel feeOn-time69%

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