New Orleans

$55+ Cheap flights from Key Largo, FL to New Orleans (MSY)

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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — MSY
May 1 — May 81
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Cheapflights Tip: The best prices from Key Largo to New Orleans Louis Armstrong are usually found in November or January, booked 14 days in advance, depart on a Thursday or Wednesday and return on a Friday

Cheap flight deals from Key Largo to New Orleans

Cheapest flights from Key Largo to New Orleans
Explore the most affordable flight options available from Key Largo to New Orleans. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:12 pm
MIA
-
MSY
Nonstop2h 00m
Spirit Airlines
Tue 9/810:07 am
MSY
-
MIA
Nonstop2h 10m
Spirit Airlines
Deal found 3/28$129
This Frontier deal was found by Cheapflights users on 3/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:27 pm
MIA
-
MSY
1 stop11h 44m
Frontier
Fri 5/16:32 pm
MSY
-
MIA
1 stop5h 17m
Frontier
Deal found 3/30$140
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:05 am
MIA
-
MSY
1 stop13h 27m
Frontier
Thu 4/304:45 pm
MSY
-
MIA
1 stop7h 04m
Frontier
Deal found 3/27$148
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/276:30 am
MIA
-
MSY
1 stop14h 39m
Multiple Airlines
Fri 5/16:32 pm
MSY
-
MIA
1 stop5h 17m
Multiple Airlines
Deal found 3/30$149
This Cheapflightsfares deal was found by Cheapflights users on 3/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/182:12 pm
MIA
-
MSY
Nonstop2h 00m
Spirit Airlines
Sun 8/2312:09 pm
MSY
-
MIA
Nonstop2h 10m
Spirit Airlines
Deal found 3/29$154
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/206:30 am
MIA
-
MSY
1 stop14h 39m
Multiple Airlines
Fri 4/246:32 pm
MSY
-
MIA
1 stop5h 17m
Multiple Airlines
Deal found 3/30$155
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Mon 4/206:30 am
MIA
-
MSY
1 stop14h 39m
Multiple Airlines
Thu 4/236:32 pm
MSY
-
MIA
1 stop13h 23m
Multiple Airlines
Deal found 3/28$156
This Expedia deal was found by Cheapflights users on 3/29. 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.
Thu 4/165:35 pm
MIA
-
MSY
1 stop27h 34m
Frontier
Mon 4/2011:26 am
MSY
-
MIA
1 stop11h 03m
Frontier
Deal found 3/29$160
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 5/1211:23 am
MIA
-
MSY
1 stop5h 58m
Frontier
Wed 5/205:21 pm
MSY
-
MIA
2 stops16h 06m
Frontier
Deal found 3/29$161
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.
Mon 5/42:25 pm
MIA
-
MSY
1 stop6h 44m
Multiple Airlines
Mon 5/118:28 pm
MSY
-
MIA
1 stop20h 21m
Multiple Airlines
Deal found 4/1$166
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:10 am
MIA
-
MSY
1 stop9h 11m
Frontier
Sun 5/109:55 pm
MSY
-
MIA
1 stop30h 43m
Frontier
Deal found 3/30$171
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/258:00 am
MIA
-
MSY
2 stops16h 30m
Multiple Airlines
Fri 5/16:32 pm
MSY
-
MIA
1 stop5h 17m
Multiple Airlines
Deal found 3/30$172

Find flight deals from Key Largo to New Orleans

Keep the following information in mind while searching for Key Largo to New Orleans flight deals. Data was last updated April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$129
(Cheapflightsfares)

One-way from

$55
(Cheapflightsfares)

Popular in

March

Cheapest in

November

Average price

$235
Provider with most accurate pricing for Miami-New Orleans Louis Armstrong flight deals.
Provider most trusted by Cheapflights users for Miami-New Orleans Louis Armstrong flights.
From Key Largo to New Orleans Louis Armstrong
One-way flight from Key Largo to New Orleans Louis Armstrong
Highest demand for flights based on searches. 6% potential increase in price ($15 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($6 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 Key Largo to New Orleans 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 1, 2026.
Use the filters below to find and compare flights from Key Largo to New Orleans that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Wed 5/6

7:04 am-12:15 pm

1 stop6h 11m

New Orleans Louis Armstrong

Sat 5/9

7:10 pm-12:43 am

1 stop4h 33m

$303

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Tue 7/21

4:53 pm-9:49 pm

1 stop5h 56m

New Orleans Louis Armstrong

Sat 7/25

12:07 pm-8:33 pm

1 stop7h 26m

$303

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Wed 5/13

3:00 pm-10:45 pm

1 stop8h 45m

New Orleans Louis Armstrong

Wed 5/20

12:30 pm-6:20 pm

1 stop4h 50m

$303

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Wed 5/13

7:05 am-11:44 am

1 stop5h 39m

New Orleans Louis Armstrong

Wed 5/20

7:10 pm-12:47 am

1 stop4h 37m

$303
Quickest round-trip

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Tue 4/28

8:05 am-12:15 pm

1 stop5h 10m

New Orleans Louis Armstrong

Tue 5/5

3:30 pm-8:48 pm

1 stop4h 18m

$303

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Sat 5/30

6:00 am-11:44 am

1 stop6h 44m

New Orleans Louis Armstrong

Wed 6/10

5:00 pm-12:57 am

1 stop6h 57m

$303

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Sat 4/25

5:40 pm-9:45 pm

1 stop5h 05m

New Orleans Louis Armstrong

Sat 5/2

2:15 pm-10:05 pm

2 stops6h 50m

$323

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Mon 4/27

1:50 pm-9:00 pm

2 stops8h 10m

New Orleans Louis Armstrong

Wed 4/29

12:30 pm-8:40 pm

2 stops7h 10m

$328

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Tue 8/18

6:00 am-10:17 am

1 stop5h 17m

New Orleans Louis Armstrong

Sun 8/23

6:30 am-2:33 pm

1 stop7h 03m

$340

MiamiNew Orleans

MIA - MSY

MIAMSY

Miami

Sat 5/2

6:15 am-1:25 pm

2 stops8h 10m

New Orleans Louis Armstrong

Sun 5/3

6:40 am-3:30 pm

1 stop7h 50m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Key Largo to New Orleans

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to New Orleans. Price data was last updated on March 13, 2026.

The price you pay for your flight from Key Largo to New Orleans may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to New Orleans (average of $44). Flying from Key Largo to New Orleans in July is currently the most expensive (average of $112). 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 KE9 to MSY?

Find hourly flight availability from Key Largo to New Orleans. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2026.

It’s optimal to fly from Key Largo to New Orleans in the evening. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Key Largo to New Orleans. Price data was last updated on March 28, 2026.

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

Weekly flight availability from Key Largo to New Orleans

Explore weekly flight availability from Key Largo to New Orleans. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 1, 2026.

The most flights from KE9 to MSY are scheduled on a Wednesday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost to fly round-trip from Key Largo to New Orleans?

Reviews of airlines servicing New Orleans

Get insights into the airlines that provide service to New Orleans. 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 New Orleans. Reviews last updated April 1, 2026.
Get a feel of what it's like to fly with Southwest,JetBlue, andAmerican Airlines from Key Largo to New Orleans 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

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

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 Key Largo to New Orleans. 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 into for flights to New Orleans from Key Largo?

    Located just 11.4 mi from the city center, New Orleans Louis Armstrong is the airport most travelers will use when flying to New Orleans from Key Largo. Booking flights from Key Largo to Louis Armstrong (MSY) should be relatively easy as there are 12 daily inbound flights from Key Largo from 6 different airlines.

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

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

    Delta and United Airlines can get you from Key Largo to New Orleans in just under 5h 56m. Your travel time can differ by up to 15m. Key Largo and New Orleans are separated by a distance of 673 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Key Largo to New Orleans are Frontier ($30), Spirit Airlines ($38), and American Airlines ($60).

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

    Consider Envoy Air (100%), Finnair (91%) or GOL (85%) when booking your flight. These represent the most reliable airlines when flying from Key Largo to New Orleans.

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

    While on average a flight from Key Largo to New Orleans is generally $318, our data shows the cheapest flight currently is $123. When looking at the most popular route, (Miami - New Orleans Louis Armstrong), you can expect to pay $110 for that flight.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Key Largo to New Orleans (average of $44). Flying from Key Largo to New Orleans in July is currently the most expensive (average of $112). 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

Traveling to a place near New Orleans?

Book flights to New Orleans if you plan to visit one of these locations
Metairie
Kenner
Gonzales
Houma
Covington
Gretna
Slidell
Thibodaux
Hammond

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Alternative routes for Key Largo to New Orleans

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

Top 6 airlines flying from Key Largo to New Orleans

Discover the top 6 airlines that operate flights from Key Largo to New Orleans. 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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$46Average$186FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$58Average$146FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$117Average$314FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$123Average$338FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$186Average$250FlexibilityNo cancel feeOn-time69%
DeltaCheapest$187Average$519FlexibilityNo cancel feeOn-timeN/A

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