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Key Largo

$49+ Cheap flights from New Orleans (MSY) 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — MIA
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from New Orleans Louis Armstrong to Key Largo are usually found in October or November, booked 50 days in advance, depart on a Friday or Thursday and return on a Tuesday

Find flight deals from New Orleans to Key Largo

Cheapest flights from New Orleans to Key Largo
Explore the most affordable flight options available from New Orleans to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:40 amMSY - MIA
2 stops23h 20mSpirit Airlines
Tue 11/186:25 amMIA - MSY
Nonstop2h 09mSpirit Airlines
Deal found 10/28$101
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Wed 11/128:29 amMSY - MIA
Nonstop1h 53mMultiple Airlines
Mon 11/178:00 amMIA - MSY
1 stop17h 20mMultiple Airlines
Deal found 10/28$103
This Expedia deal was found by Cheapflights users on 10/28. 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.
Tue 11/118:29 amMSY - MIA
Nonstop1h 53mSpirit Airlines
Sun 11/165:27 pmMIA - MSY
1 stop7h 53mSpirit Airlines
Deal found 10/28$104
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/118:29 amMSY - MIA
Nonstop1h 53mMultiple Airlines
Wed 11/122:21 pmMIA - MSY
1 stop7h 20mMultiple Airlines
Deal found 10/28$105
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sat 11/87:21 pmMSY - MIA
Nonstop1h 56mMultiple Airlines
Wed 11/122:21 pmMIA - MSY
1 stop7h 20mMultiple Airlines
Deal found 10/28$107
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:29 amMSY - MIA
Nonstop1h 53mSpirit Airlines
Tue 11/187:39 pmMIA - MSY
2 stops25h 34mSpirit Airlines
Deal found 10/28$108
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:32 amMSY - MIA
2 stops22h 28mSpirit Airlines
Sat 11/155:12 pmMIA - MSY
Nonstop2h 14mSpirit Airlines
Deal found 10/27$109
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/2010:12 amMSY - MIA
Nonstop1h 53mSpirit Airlines
Wed 1/79:59 pmMIA - MSY
1 stop10h 36mSpirit Airlines
Deal found 10/28$111
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:40 amMSY - MIA
2 stops24h 20mSpirit Airlines
Sun 11/169:59 pmMIA - MSY
Nonstop2h 12mSpirit Airlines
Deal found 10/28$112
This Priceline deal was found by Cheapflights users on 10/27. 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.
Thu 11/66:01 pmMSY - MIA
1 stop5h 33mMultiple Airlines
Mon 11/106:25 amMIA - MSY
Nonstop2h 09mMultiple Airlines
Deal found 10/27$113

Cheap flight deals from New Orleans to Key Largo

Keep the following information in mind while searching for New Orleans to Key Largo flight deals. Data was last updated October 29, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$101
(Mytrip)

One-way from

$49
(Orbitz)

Popular in

July

Cheapest in

October

Average price

$228
Provider with most accurate pricing for New Orleans Louis Armstrong-Miami flight deals.
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Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Miami flights.
Search Deals
From New Orleans Louis Armstrong to Key Largo
Search Deals
One-way flight from New Orleans Louis Armstrong to Key Largo
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Orleans 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 October 29, 2025.
Use the filters below to find and compare flights from New Orleans to Key Largo that are best for you.

Fly from

New Orleans

Fly to

Key Largo

Route

Depart

Return

Price

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Wed 11/19

8:29 am-11:22 am

Nonstop1h 53m

Miami

Mon 11/24

10:45 am-2:51 pm

1 stop5h 06m

$110

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Thu 11/20

10:12 am-1:05 pm

Nonstop1h 53m

Miami

Sun 1/11

5:35 am-5:01 pm

1 stop12h 26m

$114

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Thu 11/6

6:01 pm-12:34 am

1 stop5h 33m

Miami

Sun 11/9

9:59 pm-11:11 pm

Nonstop2h 12m

$118

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Wed 11/26

5:02 pm-11:40 pm

1 stop5h 38m

Miami

Thu 11/27

2:10 pm-3:19 pm

Nonstop2h 09m

$130

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Sat 12/13

6:12 pm-9:11 pm

Nonstop1h 59m

Miami

Sat 12/20

10:45 pm-11:59 pm

Nonstop2h 14m

$143

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Mon 11/17

8:29 am-11:22 am

Nonstop1h 53m

Miami

Fri 11/21

6:21 pm-2:51 pm

2 stops45h 30m

$148

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Wed 11/26

5:02 pm-11:40 pm

1 stop5h 38m

Miami

Sun 1/11

5:35 am-5:01 pm

1 stop12h 26m

$150

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Thu 1/22

6:05 am-12:05 pm

1 stop5h 00m

Miami

Tue 1/27

9:00 am-4:45 pm

1 stop8h 45m

$151

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Sat 11/22

4:23 pm-11:40 pm

1 stop6h 17m

Miami

Wed 1/7

9:59 pm-7:35 am

1 stop10h 36m

$154

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Sun 11/30

10:12 am-1:05 pm

Nonstop1h 53m

Miami

Fri 12/5

6:05 am-9:42 pm

2 stops16h 37m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 24 results
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Best time to book a flight from New Orleans to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from New Orleans 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 New Orleans to Key Largo

How far ahead should I book a flight from New Orleans to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from New Orleans to Key Largo. Price data was last updated on October 24, 2025.

The best time to book flights from New Orleans to Key Largo is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from New Orleans to Key Largo?

Currently, February is the cheapest month in which you can book a flight from New Orleans to Key Largo (average of $64). Flying from New Orleans 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 MSY to KE9?

Find hourly flight availability from New Orleans 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 October 29, 2025.

When flying from New Orleans to Key Largo, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 47% versus a flight in the afternoon.

What is the cheapest day to fly from New Orleans to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from New Orleans to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their New Orleans to Key Largo flight should consider departing on Thursday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 29, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from New Orleans 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.
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
7.9
Good
7,992 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
United Airlines
7.4
Good
8,999 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
11,032 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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
8,114 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

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 New Orleans 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 New Orleans to Key Largo?

    Most people fly from New Orleans Louis Armstrong (MSY) if they book a flight from New Orleans to Key Largo. On average, Louis Armstrong has 11 outbound flights to Key Largo per day from 7 airlines. New Orleans Louis Armstrong is conveniently located just 11.4 mi from New Orleans’s city center.

  • How popular is this New Orleans to Key Largo flight route?

    This flight path from New Orleans Louis Armstrong to Key Largo was viewed by 92 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from New Orleans to Key Largo?

    There are many flights that can get you from New Orleans to Key Largo in 1h 53m. Fly via Spirit Airlines or American Airlines to get the fastest option. The distance from New Orleans to Key Largo is about 673 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from New Orleans to Key Largo one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $49. American Airlines flights start at $64 while deals on Frontier start at $67 one-way.

  • What are the most reliable airlines from New Orleans to Key Largo?

    The top 3 most reliable airlines when flying from New Orleans to Key Largo are Republic Airways (90%), Iberia (84%) and American Airlines (80%).

  • What are the cheapest flights from New Orleans to Key Largo?

    The cheapest flight price from New Orleans to Key Largo is $48. On average you can expect to pay $631. The most popular route, (New Orleans Louis Armstrong - Miami), can usually be booked for $49.

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

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

  • How can I find direct flights from New Orleans to Key Largo?

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

  • Can I find deals for business class flights from New Orleans to Key Largo?

    Yes. Cheapflights offers flight deals from New Orleans 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 New Orleans to Key Largo?

    Currently, February is the cheapest month in which you can book a flight from New Orleans to Key Largo (average of $64). Flying from New Orleans 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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Alternative routes for New Orleans 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 New Orleans to Key Largo

Discover the top 7 airlines that operate flights from New Orleans 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$75Average$152FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$85Average$160FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$102Average$164FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$178Average$335FlexibilityNo cancel feeOn-time71%
DeltaCheapest$178Average$324FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$204Average$359FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$238Average$363FlexibilityNo cancel feeOn-time69%

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