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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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — MIA
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 February 4, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 2/177:00 am
MFE
-
MIA
1 stop7h 39m
United Airlines
Fri 2/201:00 pm
MIA
-
MFE
1 stop8h 05m
United Airlines
Deal found 2/3$217
This Delta deal was found by Cheapflights users on 2/3. 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 3/241:20 pm
MFE
-
MIA
2 stops10h 32m
Delta
Tue 3/317:12 pm
MIA
-
MFE
1 stop5h 47m
Delta
Deal found 2/3$222
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 3/245:17 am
MFE
-
MIA
1 stop7h 07m
United Airlines
Tue 3/314:53 pm
MIA
-
MFE
1 stop7h 06m
United Airlines
Deal found 2/2$243
This Delta deal was found by Cheapflights users on 2/2. 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 3/195:25 am
MFE
-
MIA
1 stop6h 08m
Delta
Tue 3/247:12 pm
MIA
-
MFE
1 stop5h 47m
Delta
Deal found 2/2$247
This Delta deal was found by Cheapflights users on 2/2. 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 3/265:25 am
MFE
-
MIA
1 stop6h 08m
Delta
Mon 3/307:12 pm
MIA
-
MFE
1 stop5h 47m
Delta
Deal found 2/2$277
This Delta deal was found by Cheapflights users on 2/2. 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 3/175:25 am
MFE
-
MIA
1 stop6h 08m
Delta
Mon 3/237:12 pm
MIA
-
MFE
1 stop5h 47m
Delta
Deal found 2/2$278
This Delta deal was found by Cheapflights users on 2/3. 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 4/95:25 am
MFE
-
MIA
1 stop6h 08m
Delta
Sun 4/127:12 pm
MIA
-
MFE
1 stop5h 47m
Delta
Deal found 2/3$303
This Delta deal was found by Cheapflights users on 2/2. 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 3/185:25 am
MFE
-
MIA
1 stop6h 08m
Delta
Mon 3/237:12 pm
MIA
-
MFE
1 stop5h 47m
Delta
Deal found 2/2$308
This Delta deal was found by Cheapflights users on 2/2. 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 2/45:25 am
MFE
-
MIA
1 stop6h 15m
Delta
Fri 2/207:15 pm
MIA
-
MFE
1 stop5h 42m
Delta
Deal found 2/2$318

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(United Airlines)

One-way from

$109
(Delta)

Popular in

December

Cheapest in

January

Average price

$388
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. 13% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($41 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 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 February 4, 2026.
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

Tue 2/17

7:00 am-3:39 pm

1 stop7h 39m

Miami

Fri 2/20

1:00 pm-8:05 pm

1 stop8h 05m

$217

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Wed 3/18

1:20 pm-10:26 pm

2 stops8h 06m

Miami

Tue 3/24

7:12 pm-11:59 pm

1 stop5h 47m

$222

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Tue 3/24

1:20 pm-12:52 am

2 stops10h 32m

Miami

Tue 3/31

7:12 pm-11:59 pm

1 stop5h 47m

$222

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Tue 3/24

5:17 am-1:24 pm

1 stop7h 07m

Miami

Tue 3/31

4:53 pm-10:59 pm

1 stop7h 06m

$243

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 3/19

5:25 am-12:33 pm

1 stop6h 08m

Miami

Thu 3/26

7:12 pm-11:59 pm

1 stop5h 47m

$247

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 3/19

5:25 am-12:33 pm

1 stop6h 08m

Miami

Tue 3/24

7:12 pm-11:59 pm

1 stop5h 47m

$247

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 4/9

5:25 am-12:33 pm

1 stop6h 08m

Miami

Sun 4/12

7:12 pm-11:59 pm

1 stop5h 47m

$247

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 3/26

5:25 am-12:33 pm

1 stop6h 08m

Miami

Mon 3/30

7:12 pm-11:59 pm

1 stop5h 47m

$277

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Thu 3/5

3:48 pm-12:59 am

1 stop8h 11m

Miami

Sun 3/8

5:00 am-10:15 am

1 stop6h 15m

$278

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

Fri 5/8

5:25 am-12:42 pm

1 stop6h 17m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 15 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

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 January 30, 2026.

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 40 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 $216). Flying from McAllen to Key Largo in March is currently the most expensive (average of $269). 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.

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 4, 2026.
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
8,138 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

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
7.9
Good
8,138 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

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
9,236 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

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
11,216 reviews
Delta
7.9
Good
8,138 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

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 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, United Airlines can have you in Key Largo from McAllen in 7h 39m. 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, September is the cheapest month in which you can book a flight from McAllen to Key Largo (average of $216). Flying from McAllen to Key Largo in March is currently the most expensive (average of $269). 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$334FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$354FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$415FlexibilityNo cancel feeOn-time69%

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