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Key Largo

$139+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — MIA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheapflights Tip: The best prices from Baton Rouge Ryan to Key Largo are usually found in April or August, booked 6 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

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 November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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.
Mon 12/2212:11 pmBTR - MIA
1 stop5h 34mUnited Airlines
Mon 12/296:20 amMIA - BTR
1 stop6h 05mUnited Airlines
Deal found 11/24$249
This Delta deal was found by Cheapflights users on 11/23. 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.
Tue 12/92:21 pmBTR - MIA
1 stop5h 30mDelta
Sat 12/136:00 amMIA - BTR
1 stop4h 40mDelta
Deal found 11/23$257
This Delta deal was found by Cheapflights users on 11/25. 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.
Thu 12/116:07 amBTR - MIA
1 stop7h 38mDelta
Tue 12/165:00 pmMIA - BTR
1 stop5h 53mDelta
Deal found 11/25$263
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Mon 12/221:48 pmBTR - MIA
1 stop7h 52mUnited Airlines
Sat 12/278:45 amMIA - BTR
1 stop8h 02mUnited Airlines
Deal found 11/24$274
This Delta deal was found by Cheapflights users on 11/25. 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.
Tue 12/236:59 pmBTR - MIA
1 stop4h 49mDelta
Mon 12/296:00 amMIA - BTR
1 stop4h 49mDelta
Deal found 11/25$308
This Delta deal was found by Cheapflights users on 11/25. 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.
Thu 11/276:15 amBTR - MIA
1 stop7h 20mDelta
Thu 12/184:55 pmMIA - BTR
1 stop5h 58mDelta
Deal found 11/25$309
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Tue 12/235:10 amBTR - MIA
1 stop4h 44mUnited Airlines
Mon 12/296:20 amMIA - BTR
1 stop6h 05mUnited Airlines
Deal found 11/24$319
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Thu 12/47:00 amBTR - MIA
1 stop7h 35mUnited Airlines
Sun 12/77:00 amMIA - BTR
1 stop5h 17mUnited Airlines
Deal found 11/25$327
This United Airlines deal was found by Cheapflights users on 11/25. 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 11/283:56 pmBTR - MIA
1 stop5h 04mUnited Airlines
Wed 12/311:55 amMIA - BTR
1 stop6h 33mUnited Airlines
Deal found 11/25$348
This United Airlines deal was found by Cheapflights users on 11/24. 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.
Wed 12/245:10 amBTR - MIA
1 stop6h 54mUnited Airlines
Sun 12/288:45 amMIA - BTR
1 stop8h 02mUnited Airlines
Deal found 11/24$358
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Tue 11/259:30 amBTR - MIA
1 stop5h 14mUnited Airlines
Thu 11/2711:55 amMIA - BTR
1 stop6h 33mUnited Airlines
Deal found 11/25$369

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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$244
(American Airlines)

One-way from

$139
(Delta)

Popular in

December

Cheapest in

April

Average price

$318
Provider with most accurate pricing for Baton Rouge Ryan-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baton Rouge Ryan-Miami flights.
Search Deals
From Baton Rouge Ryan to Key Largo
Search Deals
One-way flight from Baton Rouge Ryan to Key Largo
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 26, 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

Sat 1/17

6:47 pm-12:58 am

1 stop5h 11m

Miami

Tue 1/20

9:55 am-4:07 pm

1 stop7h 12m

$244

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Tue 1/27

10:33 am-4:57 pm

1 stop5h 24m

Miami

Mon 2/2

5:15 am-10:03 am

1 stop5h 48m

$244

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Mon 12/22

12:11 pm-6:45 pm

1 stop5h 34m

Miami

Mon 12/29

6:20 am-11:25 am

1 stop6h 05m

$249

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Fri 1/30

3:30 pm-9:54 pm

1 stop5h 24m

Miami

Sun 2/1

6:20 am-11:25 am

1 stop6h 05m

$249

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Tue 12/9

2:21 pm-8:51 pm

1 stop5h 30m

Miami

Sat 12/13

6:00 am-9:40 am

1 stop4h 40m

$257

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Thu 12/11

6:07 am-2:45 pm

1 stop7h 38m

Miami

Tue 12/16

5:00 pm-9:53 pm

1 stop5h 53m

$263

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Mon 12/22

1:48 pm-10:40 pm

1 stop7h 52m

Miami

Sat 12/27

8:45 am-3:47 pm

1 stop8h 02m

$274

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Fri 2/20

6:59 pm-12:53 am

1 stop4h 54m

$139

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Mon 1/5

5:51 pm-12:51 am

1 stop6h 00m

$139

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Tue 12/16

7:39 am-1:06 pm

1 stop4h 27m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 17 results
1
2

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 November 21, 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 6 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, November is the cheapest month in which you can book a flight from Baton Rouge to Key Largo (average of $55). Flying from Baton Rouge to Key Largo in June is currently the most expensive (average of $124). 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 November 26, 2025.

One of the essential ways to save on airfare from Baton Rouge to Key Largo is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 19% on airfare.

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 November 26, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American 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.
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2023

MSY - ATL

No wifi on the plane even though there was a signal.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2023

MSY - ATL

No wifi on the plane even though there was a signal.
United Airlines
7.4
Good
9,046 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2023

MSY - ATL

No wifi on the plane even though there was a signal.
American Airlines
7.2
Good
11,038 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2023

MSY - ATL

No wifi on the plane even though there was a signal.

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.

  • How long is the flight from Baton Rouge to Key Largo?

    There are many flights that can get you from Baton Rouge to Key Largo in 5h 11m. Fly via American Airlines or United Airlines to get the fastest option. The distance from Baton Rouge to Key Largo is about 737 mi. This flight may include one or multiple stops.

  • 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, November is the cheapest month in which you can book a flight from Baton Rouge to Key Largo (average of $55). Flying from Baton Rouge to Key Largo in June is currently the most expensive (average of $124). 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 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$335FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$389FlexibilityNo cancel feeOn-time71%

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