HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$126+ Cheap flights from Huntsville (HSV) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
HSV — MIA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Huntsville 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.

Cheapflights Tip: The best prices from Huntsville to Key Largo are usually found in April or July, booked 39 days in advance, depart on a Tuesday or Monday and return on a Saturday

Cheap flight deals from Huntsville to Key Largo

Keep the following information in mind while searching for Huntsville to Key Largo flight deals. Data was last updated September 15, 2025.

Round-trip from

$215
(American Airlines)

One-way from

$126
(American Airlines)

Popular in

August

Cheapest in

April

Average price

$341
From Huntsville to Key Largo
Search Deals
One-way flight from Huntsville to Key Largo
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Huntsville to Key Largo

Cheapest flights from Huntsville to Key Largo
Explore the most affordable flight options available from Huntsville to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

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.
Sat 12/67:04 pmHSV - MIA
1 stop4h 48mAmerican Airlines
Sat 12/137:10 pmMIA - HSV
1 stop5h 35mAmerican Airlines
Deal found 9/14$249
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.
Sat 9/275:52 pmHSV - MIA
1 stop5h 31mDelta
Tue 9/307:30 amMIA - HSV
1 stop5h 31mDelta
Deal found 9/13$259
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.
Sat 9/277:35 amHSV - MIA
1 stop6h 36mUnited Airlines
Tue 9/306:00 amMIA - HSV
2 stops9h 03mUnited Airlines
Deal found 9/13$276
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.
Thu 9/255:30 amHSV - MIA
1 stop4h 36mAmerican Airlines
Mon 9/295:18 amMIA - HSV
1 stop5h 05mAmerican Airlines
Deal found 9/14$284
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.
Sat 12/62:45 pmHSV - MIA
1 stop5h 58mUnited Airlines
Fri 12/1211:05 amMIA - HSV
2 stops13h 10mUnited Airlines
Deal found 9/13$285
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.
Sat 11/152:40 pmHSV - MIA
1 stop9h 08mDelta
Sat 11/226:23 pmMIA - HSV
1 stop5h 06mDelta
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.
Sat 9/203:23 pmHSV - MIA
1 stop5h 06mAmerican Airlines
Sun 9/216:10 amMIA - HSV
1 stop5h 12mAmerican Airlines
Deal found 9/13$309
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/67:39 amHSV - MIA
2 stops14h 03mUnited Airlines
Sat 12/139:00 amMIA - HSV
1 stop8h 51mUnited Airlines
Deal found 9/15$324
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.
Fri 10/176:24 pmHSV - MIA
1 stop5h 05mDelta
Sat 10/256:00 amMIA - HSV
1 stop4h 04mDelta
Deal found 9/14$329

Cheapflights Fare Finder

 
Customize your flight search to find flights from Huntsville 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 September 15, 2025.
Use the filters below to find and compare flights from Huntsville to Key Largo that are best for you.

Fly from

Huntsville

Fly to

Key Largo

Route

Depart

Return

Price

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Sat 1/10

11:21 am-7:24 pm

1 stop7h 03m

Miami

Sat 1/17

7:45 pm-8:58 pm

Nonstop2h 13m

$215

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Fri 2/20

7:40 pm-12:57 am

1 stop4h 17m

Miami

Tue 2/24

3:35 pm-6:57 pm

1 stop4h 22m

$233

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Sat 11/15

11:09 am-7:52 pm

1 stop7h 43m

Miami

Thu 11/20

12:23 pm-5:28 pm

1 stop6h 05m

$249

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Fri 11/14

1:32 pm-8:46 pm

1 stop6h 14m

Miami

Sat 11/22

6:23 pm-10:29 pm

1 stop5h 06m

$249

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Wed 10/29

2:25 pm-8:51 pm

1 stop5h 26m

Miami

Wed 11/5

10:40 am-1:40 pm

1 stop4h 00m

$249

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Sat 9/27

7:35 am-3:11 pm

1 stop6h 36m

Miami

Tue 9/30

6:00 am-2:03 pm

2 stops9h 03m

$276

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Sat 12/6

2:45 pm-9:43 pm

1 stop5h 58m

Miami

Fri 12/12

11:05 am-11:15 pm

2 stops13h 10m

$285

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Sat 11/15

2:40 pm-12:48 am

1 stop9h 08m

Miami

Sat 11/22

6:23 pm-10:29 pm

1 stop5h 06m

$297

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Sat 11/15

2:40 pm-12:48 am

1 stop9h 08m

Miami

Sun 11/23

6:00 am-9:13 am

1 stop4h 13m

$297

HuntsvilleMiami

HSV - MIA

HSVMIA

Huntsville

Sat 2/21

11:10 am-6:16 pm

1 stop6h 06m

Miami

Fri 2/27

2:38 pm-11:30 pm

2 stops9h 52m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Huntsville to Key Largo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Huntsville to Key Largo. Price data was last updated on September 12, 2025.

The best time to book flights from Huntsville to Key Largo is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Huntsville to Key Largo (average of $232). Flying from Huntsville 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 HSV to KE9?

Find hourly flight availability from Huntsville 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Huntsville to Key Largo as you normally would.

What is the cheapest day to fly from Huntsville to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Huntsville to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Huntsville to Key Largo flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 15, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Huntsville 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
8.0
Very good
7,956 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,931 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Huntsville 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 Huntsville to Key Largo?

    For a flight from Huntsville to Key Largo, you will be flying from Huntsville. Huntsville (HSV) is just 12.4 mi from the center of the city. Huntsville is the only Huntsville airport and it handles 0 outbound flights to Key Largo per day. 3 airlines have flights to Key Largo from Huntsville on a regular basis.

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

    American Airlines, Delta, and United Airlines can get you from Huntsville to Key Largo in just under 4h 17m. Your travel time can differ by up to 3h 26m. Airlines will cover a distance of 723 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most reliable airlines from Huntsville to Key Largo?

    Consider Atlas Air (67%), American Airlines (56%) or Envoy Air (56%) when booking your flight. These represent the most reliable airlines when flying from Huntsville to Key Largo.

  • What are the cheapest flights from Huntsville to Key Largo?

    On average you can expect to pay $793 for a flight from Huntsville to Key Largo. The cheapest flight overall is $679 while the most popular route, (Huntsville - Miami) is currently priced at $233.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Huntsville to Key Largo (average of $232). Flying from Huntsville 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 Huntsville 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 Fort Myers flights
Atlanta to Jacksonville flights
Birmingham to Orlando flights
Atlanta to Key West flights
Birmingham to Tampa flights
Pensacola to Miami flights
Atlanta to Sarasota flights
Pensacola to Orlando flights
Birmingham to Miami flights
Pensacola to Fort Lauderdale flights
Chattanooga to Orlando flights
Chattanooga to Fort Lauderdale flights
Chattanooga to Miami flights
Huntsville to Fort Lauderdale flights
Chattanooga to Tampa flights
Huntsville to Orlando flights
Atlanta to Pensacola flights
Pensacola to Tampa flights
Birmingham to Fort Lauderdale flights
Atlanta to Melbourne flights
Montgomery to Miami flights
Birmingham to Jacksonville flights
Huntsville to Miami flights
Atlanta to Panama City flights
Birmingham to Key West flights
Chattanooga to Orlando Sanford Intl flights
Montgomery to Orlando flights
Montgomery to Fort Lauderdale flights
Mobile to Orlando flights
Birmingham to West Palm Beach flights
Pensacola to Key West flights
Atlanta to Gainesville flights
Atlanta to Daytona Beach flights
Atlanta to Valparaiso flights
Valparaiso to Miami flights
Atlanta to Tallahassee flights
Chattanooga to West Palm Beach flights
Huntsville to Fort Myers flights
Huntsville to Tampa flights
Chattanooga to Jacksonville flights
Mobile to Miami flights
Huntsville to West Palm Beach flights
Birmingham to Fort Myers flights
Chattanooga to Daytona Beach flights
Pensacola to West Palm Beach flights

Top 3 airlines flying from Huntsville to Key Largo

Discover the top 3 airlines that operate flights from Huntsville 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$190Average$419FlexibilityNo cancel feeOn-time71%
DeltaCheapest$190Average$416FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$212Average$393FlexibilityNo 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.