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Key Largo

$108+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — MIA
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
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 November, booked 6 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap 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 December 14, 2025.

This Delta deal was found by Cheapflights users on 12/12. 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.
Sun 12/216:07 amBTR - MIA
1 stop5h 49mDelta
Sat 12/276:00 amMIA - BTR
1 stop4h 49mDelta
Deal found 12/12$292
This American Airlines deal was found by Cheapflights users on 12/13. 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.
Thu 12/184:34 pmBTR - MIA
1 stop7h 13mAmerican Airlines
Sun 12/285:00 amMIA - BTR
1 stop5h 39mAmerican Airlines
Deal found 12/13$313
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Tue 12/234:34 pmBTR - MIA
1 stop5h 14mAmerican Airlines
Sun 12/286:00 amMIA - BTR
1 stop8h 48mAmerican Airlines
Deal found 12/12$327
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/216:07 amBTR - MIA
1 stop5h 49mDelta
Fri 12/2610:34 amMIA - BTR
1 stop5h 27mDelta
Deal found 12/13$357
This American Airlines deal was found by Cheapflights users on 12/12. 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 12/224:34 pmBTR - MIA
1 stop5h 14mAmerican Airlines
Wed 12/248:34 amMIA - BTR
2 stops8h 16mAmerican Airlines
Deal found 12/12$362
This American Airlines deal was found by Cheapflights users on 12/13. 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.
Thu 12/184:34 pmBTR - MIA
1 stop7h 13mAmerican Airlines
Mon 12/295:00 amMIA - BTR
1 stop5h 39mAmerican Airlines
Deal found 12/13$383
This United Airlines deal was found by Cheapflights users on 12/13. 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 12/1712:10 pmBTR - MIA
1 stop4h 43mUnited Airlines
Fri 12/198:45 amMIA - BTR
1 stop5h 22mUnited Airlines
Deal found 12/13$427
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Sun 12/211:10 pmBTR - MIA
1 stop6h 24mAmerican Airlines
Sat 12/275:00 amMIA - BTR
1 stop5h 39mAmerican Airlines
Deal found 12/12$461
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/286:07 amBTR - MIA
1 stop4h 46mDelta
Thu 1/16:00 amMIA - BTR
1 stop4h 49mDelta
Deal found 12/13$493
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Sat 12/275:10 amBTR - MIA
1 stop4h 44mUnited Airlines
Wed 12/316:20 amMIA - BTR
1 stop7h 47mUnited Airlines
Deal found 12/12$495
This American Airlines deal was found by Cheapflights users on 12/13. 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 12/195:53 pmBTR - MIA
1 stop5h 44mAmerican Airlines
Mon 12/295:00 amMIA - BTR
1 stop5h 39mAmerican Airlines
Deal found 12/13$510
This American Airlines deal was found by Cheapflights users on 12/13. 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 12/194:34 pmBTR - MIA
1 stop13h 37mAmerican Airlines
Sat 12/208:45 amMIA - BTR
1 stop8h 13mAmerican Airlines
Deal found 12/13$523

Find 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 December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$209
(United Airlines)

One-way from

$108
(Delta)

Popular in

December

Cheapest in

April

Average price

$485
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. 3% potential increase in price ($13 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 December 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 December 14, 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 1/14

2:19 pm-9:41 pm

1 stop6h 22m

Miami

Sat 1/17

7:15 am-1:30 pm

1 stop7h 15m

$209

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Wed 1/14

2:29 pm-11:12 pm

1 stop7h 43m

Miami

Sat 1/17

5:15 am-10:03 am

1 stop5h 48m

$209

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Sat 1/10

12:00 pm-6:25 pm

1 stop5h 25m

Miami

Sat 1/17

10:55 am-5:53 pm

1 stop7h 58m

$209

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Wed 1/14

12:00 pm-6:25 pm

1 stop5h 25m

Miami

Sat 1/17

6:20 am-11:25 am

1 stop6h 05m

$209

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Sat 1/10

5:51 pm-12:51 am

1 stop6h 00m

Miami

Sat 1/17

7:15 am-1:30 pm

1 stop7h 15m

$220

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Fri 1/23

3:30 pm-9:54 pm

1 stop5h 24m

Miami

Thu 1/29

1:05 pm-5:53 pm

1 stop5h 48m

$233

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Thu 3/5

7:15 am-1:24 pm

1 stop5h 09m

Miami

Mon 3/9

9:00 am-1:13 pm

1 stop5h 13m

$287

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Sat 2/21

9:30 am-6:16 pm

1 stop7h 46m

Miami

Wed 2/25

10:58 am-3:33 pm

1 stop5h 35m

$318

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Tue 2/3

5:00 pm-12:51 am

1 stop6h 51m

$108

Baton RougeMiami

BTR - MIA

BTRMIA

Baton Rouge Ryan

Wed 2/4

6:18 am-12:14 pm

1 stop4h 56m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 18 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 December 12, 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 $53). Flying from Baton Rouge to Key Largo in June is currently the most expensive (average of $125). 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 December 14, 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 December 14, 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
8,007 reviews

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Comfort

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Comfort

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
9,094 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Comfort

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
11,054 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Comfort

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 25m. Fly via Delta, 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 $53). Flying from Baton Rouge to Key Largo in June is currently the most expensive (average of $125). 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 Baton Rouge to Key Largo

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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 December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$327FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$389FlexibilityNo cancel feeOn-time71%

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