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Key Largo

$56+ Cheap flights from Columbus (CMH) 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — MIA
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Columbus to Key Largo are usually found in August or September, booked 88 days in advance, depart on a Monday or Wednesday and return on a Thursday

Cheap flight deals from Columbus to Key Largo

Keep the following information in mind while searching for Columbus to Key Largo flight deals. Data was last updated July 29, 2025.

Round-trip from

$159
(American Airlines)

One-way from

$56
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$338
From Columbus to Key Largo
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One-way flight from Columbus to Key Largo
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Highest demand for flights based on searches. 11% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Columbus to Key Largo

Cheapest flights from Columbus to Key Largo
Explore the most affordable flight options available from Columbus to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. 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 9/206:30 pmCMH - MIA
Nonstop2h 41mAmerican Airlines
Wed 10/19:20 pmMIA - CMH
Nonstop2h 39mAmerican Airlines
Deal found 7/29$159
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1612:33 pmCMH - MIA
1 stop7h 29mSpirit Airlines
Fri 8/227:53 pmMIA - CMH
1 stop21h 16mSpirit Airlines
Deal found 7/28$176
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/104:05 pmCMH - MIA
1 stop5h 10mSouthwest
Sat 9/1311:40 amMIA - CMH
1 stop5h 00mSouthwest
Deal found 7/28$178
This Delta deal was found by Cheapflights users on 7/27. 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 9/107:25 amCMH - MIA
1 stop6h 08mDelta
Thu 9/118:10 amMIA - CMH
1 stop5h 20mDelta
Deal found 7/27$197
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1312:33 pmCMH - MIA
1 stop10h 32mMultiple Airlines
Fri 8/156:00 amMIA - CMH
1 stop5h 42mMultiple Airlines
Deal found 7/28$222
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/61:07 pmCMH - MIA
1 stop6h 04mUnited Airlines
Fri 9/124:16 pmMIA - CMH
1 stop7h 28mUnited Airlines
Deal found 7/29$237

Cheapflights Fare Finder

 
Customize your flight search to find flights from Columbus 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 July 29, 2025.
Use the filters below to find and compare flights from Columbus Airport to Key Largo that are best for you.

Fly from

Columbus

Fly to

Key Largo

Route

Depart

Return

Price

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 9/20

6:30 pm-9:11 pm

Nonstop2h 41m

Miami

Wed 10/1

9:20 pm-11:59 pm

Nonstop2h 39m

$159

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 8/16

12:33 pm-8:02 pm

1 stop7h 29m

Miami

Fri 8/22

7:53 pm-5:09 pm

1 stop21h 16m

$176

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 9/10

4:05 pm-9:15 pm

1 stop5h 10m

Miami

Sat 9/13

11:40 am-4:40 pm

1 stop5h 00m

$178

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 9/10

7:25 am-1:33 pm

1 stop6h 08m

Miami

Thu 9/11

8:10 am-1:30 pm

1 stop5h 20m

$197

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 8/13

12:33 pm-11:05 pm

1 stop10h 32m

Miami

Fri 8/15

6:00 am-11:42 am

1 stop5h 42m

$222

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 9/6

1:07 pm-7:11 pm

1 stop6h 04m

Miami

Fri 9/12

4:16 pm-11:44 pm

1 stop7h 28m

$237

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Tue 8/19

12:33 pm-11:05 pm

1 stop10h 32m

$56

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Mon 10/27

5:53 pm-8:32 pm

Nonstop2h 39m

$79

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Mon 10/27

4:40 pm-10:05 pm

1 stop5h 25m

$89

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sun 9/28

7:45 pm-12:23 am

1 stop4h 38m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 11 results
1
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Best time to book a flight from Columbus to Key Largo

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

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

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

To ensure you get the cheapest price possible for a flight from Columbus Airport to Key Largo, you should look to book at least 88 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 Columbus Airport to Key Largo?

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

Find hourly flight availability from Columbus 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 July 29, 2025.

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

What is the cheapest day to fly from Columbus Airport to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Columbus to Key Largo. Price data was last updated on November 24, 2024.

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

Weekly flight availability from Columbus Airport to Key Largo

Explore weekly flight availability from Columbus to Key Largo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from CMH to KE9 are scheduled on a Monday (4 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

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 July 29, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Columbus Airport 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.
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,979 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,044 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Columbus 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 are the cheapest airlines to fly from Columbus Airport to Key Largo one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $56. Users have also found prices from $79 and $89 on American Airlines and Southwest, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Columbus Airport to Key Largo on time: Southwest (87%), American Airlines (67%), Envoy Air (67%).

  • What are the cheapest flights from Columbus Airport to Key Largo?

    The cheapest flight price from Columbus Airport to Key Largo is $79. On average you can expect to pay $598. The most popular route, (Columbus - Miami), can usually be booked for $178.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Columbus 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 Columbus Airport to Key Largo?

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

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Top 6 airlines flying from Columbus to Key Largo

Discover the top 6 airlines that operate flights from Columbus 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$86Average$164FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$104Average$170FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$145Average$424FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$189Average$423FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$364FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$199Average$421FlexibilityNo cancel feeOn-time63%

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