Key Largo

$65+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — MIA
May 6 — May 131
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Cheapflights Tip: The best prices from Columbus to Key Largo are usually found in January or August, booked 29 days in advance, depart on a Sunday or Saturday and return on a Thursday

Cheap 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 April 6, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Fri 4/176:35 pm
CMH
-
MIA
1 stop15h 37m
Multiple Airlines
Sun 4/193:54 pm
MIA
-
CMH
1 stop19h 21m
Multiple Airlines
Deal found 4/3$176
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Mon 5/116:43 pm
CMH
-
MIA
2 stops18h 37m
Multiple Airlines
Thu 5/1411:06 am
MIA
-
CMH
1 stop6h 04m
Multiple Airlines
Deal found 4/3$177
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Fri 5/16:35 pm
CMH
-
MIA
1 stop6h 14m
Multiple Airlines
Mon 5/42:25 pm
MIA
-
CMH
2 stops26h 45m
Multiple Airlines
Deal found 4/1$178
This Trip.com deal was found by Cheapflights users on 4/3. 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.
Thu 5/146:05 pm
CMH
-
MIA
1 stop4h 42m
Frontier
Sun 5/178:10 am
MIA
-
CMH
1 stop9h 00m
Frontier
Deal found 4/3$179
This Priceline deal was found by Cheapflights users on 4/1. 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 4/176:35 pm
CMH
-
MIA
1 stop6h 14m
Frontier
Mon 4/205:05 am
MIA
-
CMH
1 stop6h 10m
Frontier
Deal found 4/1$180
This Expedia deal was found by Cheapflights users on 4/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:35 pm
CMH
-
MIA
1 stop6h 14m
Frontier
Fri 5/86:00 am
MIA
-
CMH
1 stop11h 48m
Frontier
Deal found 4/1$181
This Kiwi.com deal was found by Cheapflights users on 4/2. 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.
Mon 5/412:00 pm
CMH
-
MIA
1 stop25h 20m
Frontier
Sun 5/179:19 pm
MIA
-
CMH
2 stops43h 51m
Frontier
Deal found 4/2$182
This Kiwi.com deal was found by Cheapflights users on 4/2. 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.
Sun 4/267:00 pm
CMH
-
MIA
1 stop13h 55m
Multiple Airlines
Fri 5/13:54 pm
MIA
-
CMH
2 stops21h 33m
Multiple Airlines
Deal found 4/2$184
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Fri 5/16:35 pm
CMH
-
MIA
1 stop6h 14m
Frontier
Tue 5/57:49 pm
MIA
-
CMH
2 stops45h 21m
Frontier
Deal found 4/1$186
This Trip.com deal was found by Cheapflights users on 4/4. 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.
Sun 5/38:18 pm
CMH
-
MIA
1 stop8h 47m
Frontier
Sun 5/108:10 am
MIA
-
CMH
1 stop9h 00m
Frontier
Deal found 4/4$187
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Thu 4/237:00 pm
CMH
-
MIA
1 stop5h 49m
Frontier
Sat 4/257:04 pm
MIA
-
CMH
2 stops15h 04m
Frontier
Deal found 4/3$188

Find 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 April 6, 2026.

Round-trip from

$176
(Kiwi.com)

One-way from

$65
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$375
From Columbus to Key Largo
One-way flight from Columbus to Key Largo
Highest demand for flights based on searches. 8% potential increase in price ($36 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 April 6, 2026.
Use the filters below to find and compare flights from Columbus Airport to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Thu 6/18

10:02 am-11:41 pm

1 stop13h 39m

Miami

Wed 6/24

7:10 am-4:01 pm

1 stop8h 51m

$227

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 5/30

7:00 pm-12:48 am

1 stop5h 48m

Miami

Thu 6/4

6:36 pm-11:52 pm

1 stop5h 16m

$284

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Fri 5/8

3:30 pm-10:00 pm

2 stops6h 30m

Miami

Sat 5/16

8:25 am-5:45 pm

2 stops9h 20m

$287

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 5/2

3:45 pm-10:05 pm

1 stop6h 20m

Miami

Mon 5/4

5:45 pm-9:55 pm

1 stop4h 10m

$297

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 5/9

10:30 am-1:05 pm

Nonstop2h 35m

Miami

Sun 5/10

6:30 am-12:00 pm

1 stop5h 30m

$321
Quickest round-trip

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Thu 5/7

10:35 am-1:10 pm

Nonstop2h 35m

Miami

Mon 5/11

6:40 am-12:05 pm

1 stop5h 25m

$323

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 6/10

5:01 pm-11:41 pm

1 stop6h 40m

Miami

Mon 6/15

7:16 pm-12:54 am

1 stop5h 38m

$338

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Fri 5/1

10:35 am-1:10 pm

Nonstop2h 35m

Miami

Tue 5/5

12:10 pm-8:45 pm

1 stop8h 35m

$353

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Wed 6/10

3:40 pm-10:10 pm

2 stops6h 30m

Miami

Mon 6/15

5:35 am-1:15 pm

2 stops7h 40m

$371

ColumbusMiami

CMH - MIA

CMHMIA

Columbus

Sat 5/23

12:00 pm-10:05 pm

2 stops10h 05m

Miami

Wed 5/27

7:20 am-5:20 pm

2 stops10h 00m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 22 resultsSorted by cheapest first
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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 April 3, 2026.

To ensure you get the cheapest price possible for a flight from Columbus Airport to Key Largo, you should look to book at least 29 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 $73). Flying from Columbus Airport to Key Largo in June is currently the most expensive (average of $104). 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 April 6, 2026.

It’s optimal to fly from Columbus Airport to Key Largo in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the afternoon.

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 April 4, 2026.

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

How much does it cost to fly round-trip from Columbus Airport to Key Largo?

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 April 6, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andAmerican 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.

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 Delta and Southwest fly from Columbus Airport to Key Largo in about 6h 30m. The time it takes to get you to your destination can typically vary by up to 7h 09m. 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 Spirit Airlines. According to our data, you can fly for as low as $45. Users have also found prices from $65 and $89 on Frontier 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: American Airlines (83%), Qatar Airways (80%), Envoy Air (80%).

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

    The cheapest flight price from Columbus Airport to Key Largo is $168. On average you can expect to pay $491. The most popular route, (Columbus - Miami), can usually be booked for $134.

  • 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 $73). Flying from Columbus Airport to Key Largo in June is currently the most expensive (average of $104). 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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Top 9 airlines flying from Columbus to Key Largo

Discover the top 9 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 April 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$251FlexibilityNo cancel feeOn-time88%
FrontierCheapest$79Average$181FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$80Average$242FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$83Average$214FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$150Average$426FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$168Average$281FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$178Average$376FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$191Average$399FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$354FlexibilityNo cancel feeOn-timeN/A

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