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Key Largo

$66+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — MIA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Columbus to Key Largo are usually found in October or July, booked 88 days in advance, depart on a Monday or Sunday 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 September 16, 2025.

Round-trip from

$143
(Priceline)

One-way from

$66
(American Airlines)

Popular in

March

Cheapest in

October

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. 9% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:40 pmCMH - MIA
1 stop5h 32mFrontier
Mon 10/69:28 amMIA - CMH
1 stop8h 17mFrontier
Deal found 9/14$143
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/201:25 pmCMH - MIA
1 stop11h 09mFrontier
Fri 10/245:15 amMIA - CMH
1 stop6h 41mFrontier
Deal found 9/14$153
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:08 pmCMH - MIA
Nonstop2h 42mAmerican Airlines
Sat 11/158:35 pmMIA - CMH
Nonstop2h 51mAmerican Airlines
Deal found 9/15$159
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:04 pmCMH - MIA
1 stop11h 15mFrontier
Sun 10/266:00 amMIA - CMH
1 stop12h 13mFrontier
Deal found 9/14$168
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:04 pmCMH - MIA
1 stop11h 15mFrontier
Sun 10/266:00 amMIA - CMH
1 stop12h 13mFrontier
Deal found 9/14$169
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:19 pmCMH - MIA
1 stop26h 51mSpirit Airlines
Tue 10/217:52 pmMIA - CMH
1 stop11h 45mSpirit Airlines
Deal found 9/16$171
This Frontier deal was found by Cheapflights users on 9/16. 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.
Fri 10/316:48 pmCMH - MIA
1 stop5h 46mFrontier
Fri 11/75:01 amMIA - CMH
1 stop10h 34mFrontier
Deal found 9/16$173
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/171:25 pmCMH - MIA
1 stop11h 09mFrontier
Mon 10/205:15 amMIA - CMH
1 stop6h 50mFrontier
Deal found 9/14$175
This Southwest deal was found by Cheapflights users on 9/16. 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.
Sun 11/95:10 pmCMH - MIA
1 stop4h 55mSouthwest
Sat 11/156:50 amMIA - CMH
1 stop4h 00mSouthwest
Deal found 9/16$179
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:30 pmCMH - MIA
Nonstop2h 41mAmerican Airlines
Wed 10/87:45 pmMIA - CMH
Nonstop2h 51mAmerican Airlines
Deal found 9/15$180
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:20 pmCMH - MIA
1 stop4h 45mSouthwest
Tue 10/2111:45 amMIA - CMH
2 stops9h 20mSouthwest
Deal found 9/14$184
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:40 pmCMH - MIA
2 stops9h 25mSouthwest
Fri 10/247:20 amMIA - CMH
1 stop4h 30mSouthwest
Deal found 9/14$190

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 September 16, 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

Thu 10/23

7:04 pm-6:19 am

1 stop11h 15m

Miami

Sun 10/26

6:00 am-6:13 pm

1 stop12h 13m

$168

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sun 11/9

5:10 pm-10:05 pm

1 stop4h 55m

Miami

Sat 11/15

6:50 am-10:50 am

1 stop4h 00m

$179

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sun 11/16

6:35 am-2:30 pm

1 stop7h 55m

Miami

Tue 11/18

7:10 am-4:20 pm

2 stops9h 10m

$184

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Mon 10/20

12:40 pm-10:05 pm

2 stops9h 25m

Miami

Fri 10/24

7:20 am-11:50 am

1 stop4h 30m

$190

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Tue 10/14

10:40 am-9:55 pm

2 stops11h 15m

Miami

Tue 10/21

11:45 am-9:05 pm

2 stops9h 20m

$195

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 10/25

2:12 pm-9:27 pm

1 stop7h 15m

Miami

Tue 10/28

7:10 am-12:50 pm

1 stop5h 40m

$197

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 10/18

4:28 pm-8:51 pm

1 stop4h 23m

Miami

Sat 10/25

8:30 am-1:29 pm

1 stop4h 59m

$197

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 10/1

9:38 pm-11:17 pm

1 stop25h 39m

Miami

Tue 10/7

7:52 pm-7:37 am

1 stop11h 45m

$201

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 10/1

4:05 pm-9:15 pm

1 stop5h 10m

Miami

Wed 10/8

3:15 pm-9:05 pm

1 stop5h 50m

$223

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Mon 10/20

1:25 pm-12:34 am

1 stop11h 09m

$83

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 19 results
1
2

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 September 12, 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 September 16, 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 September 16, 2025.

The most flights from CMH to KE9 are scheduled on a Tuesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 September 16, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American 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
4,242 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,019 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Columbus Airport to Key Largo?

    Airlines like Frontier and Southwest fly from Columbus Airport to Key Largo in about 4h 55m. The time it takes to get you to your destination can typically vary by up to 6h 20m. There are 992 mi between Columbus Airport and Key Largo. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Columbus Airport to Key Largo one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $83. Users have also found prices from $89 and $90 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: Envoy Air (80%), Southwest (73%), Qatar Airways (68%).

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

    The cheapest flight price from Columbus Airport to Key Largo is $94. On average you can expect to pay $753. The most popular route, (Columbus - Miami), can usually be booked for $177.

  • 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.

See more FAQs

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Alternative routes for Columbus to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Columbus to Key Largo

Discover the top 7 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$84Average$202FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$104Average$170FlexibilityNo cancel feeOn-time88%
FrontierCheapest$143Average$320FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$145Average$444FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$190Average$418FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$191Average$416FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$368FlexibilityNo cancel feeOn-timeN/A

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