Key Largo

$150+ Cheap flights from Baton Rouge (BTR) 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — MIA
Jul 28 — Aug 41
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Find cheap flights from Baton Rouge to Key Largo with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Baton Rouge Ryan to Key Largo are usually found in August or September, booked 65 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from Baton Rouge to Key Largo

Keep the following information in mind while searching for Baton Rouge to Key Largo flight deals. Data was last updated July 23, 2025.

Round-trip from

$249
(Delta)

One-way from

$150
(Delta)

Popular in

March

Cheapest in

August

Average price

$378
From Baton Rouge Ryan to Key Largo
One-way flight from Baton Rouge Ryan to Key Largo
Highest demand for flights based on searches. 10% potential increase in price ($45 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find flight deals from Baton Rouge to Key Largo

Cheapest flights from Baton Rouge to Key Largo
Explore the most affordable flight options available from Baton Rouge to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2025.

This Delta deal was found by Cheapflights users on 7/23. 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 8/206:00 amBTR - MIA
1 stop6h 33mDelta
Wed 8/2710:28 amMIA - BTR
1 stop4h 09mDelta
Deal found 7/23$249
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Fri 9/195:41 pmBTR - MIA
1 stop5h 15mAmerican Airlines
Mon 9/225:18 amMIA - BTR
1 stop5h 20mAmerican Airlines
Deal found 7/23$251
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 9/265:00 amBTR - MIA
1 stop5h 00mUnited Airlines
Sun 9/286:45 amMIA - BTR
1 stop5h 29mUnited Airlines
Deal found 7/22$319

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baton Rouge 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 23, 2025.
Use the filters below to find and compare flights from Baton Rouge to Key Largo that are best for you.

Fly from

Baton Rouge

Fly to

Key Largo

Route

Depart

Return

Price

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Wed 8/20

6:00 am-1:33 pm

1 stop6h 33m

Miami

Wed 8/27

10:28 am-1:37 pm

1 stop4h 09m

$249

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Fri 9/19

5:41 pm-11:56 pm

1 stop5h 15m

Miami

Mon 9/22

5:18 am-9:38 am

1 stop5h 20m

$251

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Fri 9/26

5:00 am-11:00 am

1 stop5h 00m

Miami

Sun 9/28

6:45 am-11:14 am

1 stop5h 29m

$319

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Mon 9/8

6:15 pm-12:24 am

1 stop5h 09m

$150

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Sun 8/24

6:59 am-2:29 pm

1 stop6h 30m

$161

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Sat 8/2

2:00 pm-8:45 pm

1 stop5h 45m

$301

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Sat 10/11

2:18 pm-5:29 pm

2 stops26h 11m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Best time to book a flight from Baton Rouge to Key Largo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Baton Rouge to Key Largo. Price data was last updated on July 18, 2025.

To ensure you get the cheapest price possible for a flight from Baton Rouge to Key Largo, you should look to book at least 65 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 Baton Rouge to Key Largo?

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

Find hourly flight availability from Baton Rouge 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 23, 2025.

When flying from Baton Rouge to Key Largo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 23, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Baton Rouge to Key Largo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
8.0
Very good

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

    Baton Rouge Ryan (BTR) is the airport you will fly out of if you book a flight from Baton Rouge to Key Largo. You should not have trouble finding flights to Key Largo from Ryan; the airport handles an average of 0 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Baton Rouge airport to Key Largo. It is only a 5.8 mi journey to Ryan (BTR) from Baton Rouge’s city center.

  • What are the cheapest airlines to fly from Baton Rouge to Key Largo one-way?

    One-way options have recently been found by users for as low as $150 on Delta. Other airlines that offer cheap prices include American Airlines from $161 and United Airlines from $301 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baton Rouge 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 Baton Rouge to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Baton Rouge to Key Largo (average of $232). Flying from Baton Rouge 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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Alternative routes for Baton Rouge to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Baton Rouge to Key Largo

Discover the top 3 airlines that operate flights from Baton Rouge 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 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$346FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$371FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$388FlexibilityNo cancel feeOn-time71%

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