HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$168+ Cheap flights from Montgomery, AL (MGM) to Key Largo, FL

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — MIA
Mar 28 — Apr 41
Sat 3/28
Sat 4/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montgomery 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 Montgomery to Key Largo

Cheapest flights from Montgomery to Key Largo
Explore the most affordable flight options available from Montgomery to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.

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.
Tue 3/312:59 pm
MGM
-
MIA
1 stop6h 27m
Delta
Wed 4/86:00 am
MIA
-
MGM
1 stop3h 55m
Delta
Deal found 2/24$168
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.
Sun 4/2612:37 pm
MGM
-
MIA
1 stop4h 58m
Delta
Sat 5/26:00 am
MIA
-
MGM
1 stop4h 04m
Delta
Deal found 2/23$177
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.
Tue 4/286:25 pm
MGM
-
MIA
1 stop5h 29m
Delta
Wed 5/66:00 am
MIA
-
MGM
1 stop4h 04m
Delta
Deal found 2/24$188
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.
Mon 4/276:25 pm
MGM
-
MIA
1 stop5h 29m
Delta
Sat 5/26:00 am
MIA
-
MGM
1 stop4h 04m
Delta
Deal found 2/24$197
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.
Mon 3/236:25 pm
MGM
-
MIA
1 stop5h 27m
Delta
Mon 3/306:00 am
MIA
-
MGM
1 stop3h 55m
Delta
Deal found 2/23$201
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.
Tue 4/282:42 pm
MGM
-
MIA
1 stop5h 06m
Delta
Thu 5/76:00 am
MIA
-
MGM
1 stop4h 15m
Delta
Deal found 2/24$212
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/91:00 pm
MGM
-
MIA
1 stop8h 09m
United Airlines
Sat 5/166:15 am
MIA
-
MGM
1 stop6h 55m
United Airlines
Deal found 2/24$216
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.
Thu 4/232:42 pm
MGM
-
MIA
1 stop5h 06m
Delta
Sat 5/26:00 am
MIA
-
MGM
1 stop4h 04m
Delta
Deal found 2/23$217
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.
Mon 4/276:25 pm
MGM
-
MIA
1 stop5h 29m
Delta
Thu 5/76:00 am
MIA
-
MGM
1 stop4h 15m
Delta
Deal found 2/24$221
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 3/311:31 pm
MGM
-
MIA
1 stop5h 47m
American Airlines
Wed 4/86:54 am
MIA
-
MGM
1 stop6h 37m
American Airlines
Deal found 2/25$227
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/21:00 pm
MGM
-
MIA
1 stop8h 09m
United Airlines
Sat 5/910:50 am
MIA
-
MGM
1 stop6h 30m
United Airlines
Deal found 2/23$228
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.
Tue 9/15:55 pm
MGM
-
MIA
1 stop5h 59m
Delta
Sat 9/57:00 am
MIA
-
MGM
1 stop5h 48m
Delta
Deal found 2/24$237

Find flight deals from Montgomery to Key Largo

Keep the following information in mind while searching for Montgomery to Key Largo flight deals. Data was last updated February 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$168
(Delta)

Popular in

April

Cheapest in

January

Average price

$443
Provider with most accurate pricing for Montgomery Dannelly Field-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Montgomery Dannelly Field-Miami flights.
Search Deals
From Montgomery Dannelly Field to Key Largo
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 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 Montgomery 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 26, 2026.
Use the filters below to find and compare flights from Montgomery to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Tue 3/31

6:25 pm-12:52 am

1 stop5h 27m

Miami

Wed 4/8

7:05 am-11:55 am

1 stop5h 50m

$168

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Thu 4/16

1:00 pm-10:28 pm

1 stop8h 28m

Miami

Mon 4/20

6:15 am-11:55 am

1 stop6h 40m

$216

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Mon 3/30

6:25 pm-12:52 am

1 stop5h 27m

Miami

Mon 4/6

6:00 am-8:55 am

1 stop3h 55m

$246

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Sat 5/30

1:00 pm-10:40 pm

1 stop8h 40m

Miami

Sun 6/7

6:30 am-12:10 pm

1 stop6h 40m

$286

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Mon 4/6

6:25 pm-12:52 am

1 stop5h 27m

Miami

Sat 4/11

6:00 am-8:55 am

1 stop3h 55m

$297

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Wed 3/25

6:25 pm-12:52 am

1 stop5h 27m

Miami

Sun 3/29

6:00 am-8:55 am

1 stop3h 55m

$312

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Fri 7/3

1:20 pm-10:40 pm

1 stop8h 20m

Miami

Sun 7/5

8:48 am-4:16 pm

1 stop8h 28m

$361

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Thu 3/19

2:59 pm-10:26 pm

1 stop6h 27m

Miami

Mon 3/23

6:00 am-8:55 am

1 stop3h 55m

$367

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Thu 6/4

1:00 pm-8:33 pm

1 stop6h 33m

Miami

Sun 6/7

6:30 am-12:10 pm

1 stop6h 40m

$380

MontgomeryMiami

MGM - MIA

MGMMIA

Montgomery Dannelly Field

Mon 4/6

2:59 pm-8:50 pm

1 stop4h 51m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Montgomery to Key Largo

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

How far ahead should I book a flight from Montgomery, Alabama to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Montgomery to Key Largo. Price data was last updated on February 20, 2026.

To ensure you get the cheapest price possible for a flight from Montgomery, Alabama to Key Largo, you should look to book at least 69 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 Montgomery, Alabama to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Montgomery, Alabama to Key Largo (average of $54). Flying from Montgomery, Alabama to Key Largo in December is currently the most expensive (average of $223). 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 26, 2026.
See what other customers who have flown with Delta and American Airlines from Montgomery 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
8,237 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

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
8,237 reviews
Delta
7.9
Good
8,237 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

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
11,353 reviews
Delta
7.9
Good
8,237 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

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 Montgomery 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 Montgomery to Key Largo?

    Most people fly from Montgomery Dannelly Field (MGM) if they book a flight from Montgomery to Key Largo. On average, Dannelly Field has 0 outbound flights to Key Largo per day from 2 airlines. Montgomery Dannelly Field is conveniently located just 7.1 mi from Montgomery’s city center.

  • How long is the flight from Montgomery, Alabama to Key Largo?

    Airlines like United Airlines and Delta fly from Montgomery, Alabama to Key Largo in about 5h 27m. The time it takes to get you to your destination can typically vary by up to 3h 01m. There are 581 mi between Montgomery, Alabama and Key Largo. 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 Montgomery to Key Largo that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Montgomery 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 Montgomery, Alabama to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Montgomery, Alabama to Key Largo (average of $54). Flying from Montgomery, Alabama to Key Largo in December is currently the most expensive (average of $223). 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 Montgomery to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
Atlanta to Miami flights
Atlanta to Fort Lauderdale flights
Atlanta to Orlando flights
Atlanta to Tampa flights
Atlanta to West Palm Beach flights
Atlanta to Jacksonville flights
Atlanta to Fort Myers flights
Chattanooga to Orlando flights
Birmingham to Orlando flights
Atlanta to Key West flights
Huntsville to Orlando flights
Atlanta to Sarasota flights
Pensacola to Miami flights
Pensacola to Fort Lauderdale flights
Pensacola to Orlando flights
Birmingham to Miami flights
Birmingham to Tampa flights
Atlanta to Daytona Beach flights
Chattanooga to Orlando Sanford Intl flights
Chattanooga to Miami flights
Atlanta to Pensacola flights
Chattanooga to Tampa flights
Pensacola to Tampa flights
Atlanta to Panama City flights
Pensacola to Key West flights
Chattanooga to Sarasota flights
Huntsville to Miami flights
Chattanooga to Fort Lauderdale flights
Birmingham to Fort Lauderdale flights
Atlanta to St Petersburg flights
Montgomery to Miami flights
Birmingham to West Palm Beach flights
Atlanta to Melbourne flights
Chattanooga to Fort Myers flights
Birmingham to Fort Myers flights
Valparaiso to Miami flights
Chattanooga to West Palm Beach flights
Montgomery to Orlando flights
Atlanta to Tallahassee flights
Huntsville to Key West flights
Mobile to Orlando flights
Valparaiso to Orlando flights
Birmingham to Jacksonville flights
Huntsville to Fort Lauderdale flights
Huntsville to West Palm Beach flights
Birmingham to Key West flights
Chattanooga to Jacksonville flights
Chattanooga to Melbourne flights
Atlanta to Gainesville flights

Top 2 airlines flying from Montgomery to Key Largo

Discover the top 2 airlines that operate flights from Montgomery 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 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$168Average$398FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$168Average$443FlexibilityNo cancel feeOn-time71%

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.
Site
©2026 Cheapflights