HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$114+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — MIA
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from McAllen to Key Largo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 septiembre 15, 2025.

Round-trip from

$253
(American Airlines)

One-way from

$114
(Delta)

Popular in

December

Cheapest in

January

Average price

$337
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 ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 septiembre 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. 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.
lun. 9/296:45 amMFE - MIA
1 stop7h 00mAmerican Airlines
sáb. 10/48:55 amMIA - MFE
1 stop6h 54mAmerican Airlines
Deal found 9/13$253
This Delta deal was found by Cheapflights users on 9/13. 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.
lun. 9/295:18 pmMFE - MIA
2 stops12h 07mDelta
sáb. 10/48:10 amMIA - MFE
2 stops10h 02mDelta
Deal found 9/13$262
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/2610:38 amMFE - MIA
1 stop6h 49mAmerican Airlines
mar. 10/285:15 amMIA - MFE
1 stop5h 36mAmerican Airlines
Deal found 9/14$277
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/286:55 amMFE - MIA
1 stop7h 52mUnited Airlines
mié. 10/18:45 amMIA - MFE
1 stop5h 44mUnited Airlines
Deal found 9/14$287
This Delta deal was found by Cheapflights users on 9/14. 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.
lun. 9/295:18 pmMFE - MIA
2 stops12h 07mDelta
vie. 10/37:30 amMIA - MFE
2 stops10h 08mDelta
Deal found 9/14$297
This American Airlines deal was found by Cheapflights users on 9/13. 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.
jue. 9/2510:49 amMFE - MIA
1 stop8h 03mAmerican Airlines
dom. 9/285:18 amMIA - MFE
1 stop5h 46mAmerican Airlines
Deal found 9/13$302
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/286:55 amMFE - MIA
1 stop7h 52mUnited Airlines
sáb. 10/46:35 amMIA - MFE
1 stop7h 54mUnited Airlines
Deal found 9/13$332
This American Airlines deal was found by Cheapflights users on 9/13. 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.
lun. 9/296:45 amMFE - MIA
1 stop7h 00mAmerican Airlines
dom. 10/55:18 amMIA - MFE
1 stop5h 46mAmerican Airlines
Deal found 9/13$333
This American Airlines deal was found by Cheapflights users on 9/12. 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.
lun. 9/156:45 amMFE - MIA
1 stop7h 00mAmerican Airlines
vie. 9/195:18 amMIA - MFE
1 stop5h 50mAmerican Airlines
Deal found 9/12$337
This Delta deal was found by Cheapflights users on 9/13. 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.
lun. 9/295:25 amMFE - MIA
2 stops10h 40mDelta
dom. 10/56:00 amMIA - MFE
2 stops18h 58mDelta
Deal found 9/13$372
This American Airlines deal was found by Cheapflights users on 9/13. 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.
dom. 9/2810:49 amMFE - MIA
1 stop8h 03mAmerican Airlines
dom. 10/55:18 amMIA - MFE
1 stop5h 46mAmerican Airlines
Deal found 9/13$374

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 septiembre 15, 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

lun. 9/29

5:18 pm-6:25 am

2 stops12h 07m

Miami

sáb. 10/4

8:10 am-5:12 pm

2 stops10h 02m

$262

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

dom. 10/26

10:38 am-7:23 pm

1 stop7h 45m

Miami

mar. 10/28

11:13 am-6:40 pm

1 stop8h 27m

$277

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

dom. 9/28

6:55 am-3:47 pm

1 stop7h 52m

Miami

mié. 10/1

8:45 am-1:29 pm

1 stop5h 44m

$287

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

mié. 10/1

6:45 am-2:45 pm

1 stop7h 00m

Miami

sáb. 10/4

11:16 am-5:26 pm

1 stop7h 10m

$287

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

lun. 9/29

5:00 am-11:00 am

1 stop5h 00m

Miami

vie. 10/3

12:06 pm-6:05 pm

1 stop6h 59m

$287

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

mié. 10/1

5:18 pm-6:25 am

2 stops12h 07m

Miami

sáb. 10/4

8:10 am-5:12 pm

2 stops10h 02m

$297

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

lun. 9/29

5:18 pm-6:25 am

2 stops12h 07m

Miami

vie. 10/3

7:30 am-4:38 pm

2 stops10h 08m

$297

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

jue. 9/25

10:49 am-7:52 pm

1 stop8h 03m

Miami

dom. 9/28

5:18 am-10:04 am

1 stop5h 46m

$302

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

lun. 9/29

6:45 am-2:45 pm

1 stop7h 00m

Miami

dom. 10/5

5:18 am-10:04 am

1 stop5h 46m

$333

McAllenMiami

MFE - MIA

MFEMIA

McAllen Miller Intl

lun. 9/29

5:00 am-11:00 am

1 stop5h 00m

Miami

sáb. 10/4

10:27 am-9:57 pm

2 stops12h 30m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, 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 septiembre 15, 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.

How much does it cost to fly round-trip from McAllen 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 septiembre 15, 2025.
Get a feel of what it's like to fly with 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.
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

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.

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

    For as low as $277, Delta can have you in Key Largo from McAllen in 7h 45m. 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 $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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for McAllen to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Orlando flights
Dallas/Fort Worth to Miami flights
Dallas/Fort Worth to Fort Lauderdale flights
Hobby to Orlando flights
George Bush Intcntl to Orlando flights
Hobby to Miami flights
Love Field to Miami flights
Hobby to Fort Lauderdale flights
George Bush Intcntl to Miami flights
Austin to Miami flights
Austin to Orlando flights
Dallas/Fort Worth to Tampa flights
George Bush Intcntl to Fort Lauderdale flights
Love Field to Orlando flights
San Antonio to Orlando flights
Austin to Fort Lauderdale flights
Dallas/Fort Worth to Jacksonville flights
Love Field to Fort Lauderdale flights
Dallas/Fort Worth to West Palm Beach flights
Hobby to Tampa flights
Austin to Tampa flights
San Antonio to Miami flights
George Bush Intcntl to Tampa flights
Dallas/Fort Worth to Fort Myers flights
Love Field to Tampa flights
Dallas/Fort Worth to Pensacola flights
Hobby to Jacksonville flights
Dallas/Fort Worth to Key West flights
Dallas/Fort Worth to Panama City flights
Hobby to West Palm Beach flights
Dallas/Fort Worth to Sarasota flights
George Bush Intcntl to Jacksonville flights
George Bush Intcntl to West Palm Beach flights
Hobby to Panama City flights
San Antonio to Fort Lauderdale flights
Love Field to Jacksonville flights
Hobby to Pensacola flights
San Antonio to Tampa flights
Austin to Fort Myers flights
Dallas/Fort Worth to Valparaiso flights
George Bush Intcntl to Panama City flights
Austin to Gainesville flights
Austin to Jacksonville flights
Hobby to Fort Myers flights
George Bush Intcntl to Pensacola flights
Hobby to Key West flights
Corpus Christi to Orlando flights
Love Field to Pensacola flights
George Bush Intcntl to Fort Myers flights
Austin to Panama City flights

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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$216Average$406FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$262Average$462FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.