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Key Largo

$78+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — MIA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Columbus to Key Largo are usually found in September or August, booked 48 days in advance, depart on a Monday or Friday and return on a Tuesday

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 June 12, 2025.

Round-trip from

$179
(Southwest)

One-way from

$78
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$397
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. 12% potential increase in price ($51 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 June 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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/9. 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 8/64:05 pmCMH - MIA
1 stop5h 10mSouthwest
Tue 8/127:45 amMIA - CMH
2 stops8h 45mSouthwest
Deal found 6/9$182
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 9/106:40 amCMH - MIA
Nonstop2h 39mAmerican Airlines
Tue 9/1610:14 amMIA - CMH
1 stop8h 10mAmerican Airlines
Deal found 6/11$186
This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/276:00 amCMH - MIA
1 stop5h 37mSpirit Airlines
Mon 6/3012:32 pmMIA - CMH
1 stop9h 35mSpirit Airlines
Deal found 6/10$189
This Delta deal was found by Cheapflights users on 6/11. 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 9/101:55 pmCMH - MIA
1 stop4h 30mDelta
Tue 9/1612:05 pmMIA - CMH
1 stop6h 41mDelta
Deal found 6/11$197
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:17 pmCMH - MIA
1 stop6h 35mFrontier
Fri 9/195:45 amMIA - CMH
1 stop10h 37mFrontier
Deal found 6/10$234
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/168:37 pmCMH - MIA
2 stops20h 16mMultiple Airlines
Fri 7/1811:11 amMIA - CMH
2 stops29h 58mMultiple Airlines
Deal found 6/11$280

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 June 12, 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

Wed 8/6

4:05 pm-9:15 pm

1 stop5h 10m

Miami

Tue 8/12

7:45 am-4:30 pm

2 stops8h 45m

$182

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 9/10

6:40 am-9:19 am

Nonstop2h 39m

Miami

Tue 9/16

10:14 am-6:24 pm

1 stop8h 10m

$186

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Fri 6/27

6:00 am-11:37 am

1 stop5h 37m

Miami

Mon 6/30

12:32 pm-10:07 pm

1 stop9h 35m

$189

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 9/10

1:55 pm-9:28 pm

1 stop7h 33m

Miami

Tue 9/16

6:00 am-1:00 pm

1 stop7h 00m

$197

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Fri 7/18

12:31 pm-12:05 am

1 stop11h 34m

Miami

Mon 7/21

6:00 am-11:42 am

1 stop5h 42m

$235

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 7/16

8:37 pm-4:53 pm

2 stops20h 16m

Miami

Fri 7/18

11:11 am-5:09 pm

2 stops29h 58m

$280

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 9/10

6:40 am-9:19 am

Nonstop2h 39m

$78

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Mon 7/14

10:50 am-1:30 pm

Nonstop2h 40m

$84

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sun 9/7

10:05 am-3:32 pm

1 stop5h 27m

$92

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Mon 7/14

7:58 pm-12:55 am

1 stop4h 57m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 13 results
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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 June 9, 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 48 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 $228). 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 June 12, 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 June 12, 2025.

The most flights from CMH to KE9 are scheduled on a Thursday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

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 June 12, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Columbus to Key Largo have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,946 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 American Airlines. According to our data, you can fly for as low as $78. Users have also found prices from $84 and $92 on Southwest and Spirit Airlines, 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: Envoy Air (90%), Southwest (81%), Qatar Airways (75%).

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

    The cheapest flight price from Columbus Airport to Key Largo is $132. On average you can expect to pay $382. The most popular route, (Columbus - Miami), can usually be booked for $174.

  • 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 $228). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$79Average$163FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$88Average$170FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$145Average$400FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$183Average$418FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$369FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$216Average$429FlexibilityNo cancel feeOn-time63%

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