HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$81+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — MIA
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from New Orleans to Key Largo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from New Orleans Louis Armstrong to Key Largo are usually found in August or September, booked 71 days in advance, depart on a Friday or Thursday and return on a Thursday

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 July 29, 2025.

Round-trip from

$154
(Mytrip)

One-way from

$81
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$281
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. 4% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 29, 2025.

This Mytrip deal was found by Cheapflights users on 7/28. 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 8/229:04 amMSY - MIA
2 stops24h 10mSpirit Airlines
Sun 8/246:34 pmMIA - MSY
Nonstop2h 15mSpirit Airlines
Deal found 7/28$154
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/65:18 pmMSY - MIA
Nonstop1h 57mAmerican Airlines
Fri 9/128:05 pmMIA - MSY
Nonstop2h 15mAmerican Airlines
Deal found 7/27$159
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/115:52 pmMSY - MIA
1 stop5h 37mDelta
Tue 10/146:00 amMIA - MSY
1 stop6h 05mDelta
Deal found 7/29$179
This CheapOair deal was found by Cheapflights users on 7/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/94:51 pmMSY - MIA
1 stop6h 01mMultiple Airlines
Sun 10/126:34 pmMIA - MSY
Nonstop2h 09mMultiple Airlines
Deal found 7/27$183

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 July 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

Fri 8/22

9:04 am-10:14 am

2 stops24h 10m

Miami

Sun 8/24

6:34 pm-7:49 pm

Nonstop2h 15m

$154

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Sat 9/6

5:18 pm-8:15 pm

Nonstop1h 57m

Miami

Fri 9/12

8:05 pm-9:20 pm

Nonstop2h 15m

$159

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Sat 10/11

5:52 pm-12:29 am

1 stop5h 37m

Miami

Tue 10/14

6:00 am-11:05 am

1 stop6h 05m

$179

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Thu 10/9

4:51 pm-11:52 pm

1 stop6h 01m

Miami

Sun 10/12

6:34 pm-7:43 pm

Nonstop2h 09m

$183

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Sat 8/30

3:05 pm-10:37 pm

1 stop6h 32m

$81

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Wed 8/27

1:05 pm-9:28 pm

1 stop7h 23m

$89

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Tue 8/19

4:00 pm-9:10 pm

1 stop4h 10m

$104

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Tue 8/5

6:15 am-5:15 pm

1 stop10h 00m

$108

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Tue 8/19

6:00 am-9:00 am

Nonstop2h 00m

$109

New OrleansMiami

MSY - MIA

MSYMIA

New Orleans Louis Armstrong

Thu 11/20

11:59 am-8:49 pm

1 stop7h 50m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 25, 2025.

The best time to book flights from New Orleans to Key Largo is 24 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, September is the cheapest month in which you can book a flight from New Orleans to Key Largo (average of $232). Flying from New Orleans 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 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 July 29, 2025.

When flying from New Orleans 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.

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 Monday evenings 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.

Weekly flight availability from New Orleans to Key Largo

Explore weekly flight availability from New Orleans to Key Largo. 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 July 29, 2025.

The most flights from MSY to KE9 are scheduled on a Tuesday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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 29, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American 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
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,977 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,040 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 12 outbound flights to Key Largo per day from 6 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 84 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 $81. Delta flights start at $89 while deals on Southwest start at $104 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 Spirit Airlines (81%), American Airlines (75%) and Iberia (74%).

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

    The cheapest flight price from New Orleans to Key Largo is $108. On average you can expect to pay $627. The most popular route, (New Orleans Louis Armstrong - Miami), can usually be booked for $108.

  • 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, September is the cheapest month in which you can book a flight from New Orleans to Key Largo (average of $232). Flying from New Orleans 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for New Orleans to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
New Orleans to Fort Lauderdale flights
New Orleans to Orlando flights
New Orleans to Miami flights
New Orleans to Key West flights
New Orleans to Tampa flights
Baton Rouge to Orlando flights
Lafayette to Orlando flights
Shreveport to Orlando flights
Baton Rouge to Miami flights
Shreveport to Miami flights
New Orleans to Jacksonville flights
Monroe to Orlando flights
Lafayette to Jacksonville flights
Baton Rouge to Fort Lauderdale flights
New Orleans to West Palm Beach flights
Monroe to Miami flights
New Orleans to Fort Myers flights
Lafayette to Miami flights
Baton Rouge to Tampa flights
Shreveport to Pensacola flights
Shreveport to Jacksonville flights
Baton Rouge to Jacksonville flights
Alexandria to Miami flights
Lake Charles to Orlando flights
New Orleans to Sarasota flights
Shreveport to Valparaiso flights
Alexandria to Orlando flights
Lafayette to Tampa flights
Lafayette to Fort Lauderdale flights
Baton Rouge to Daytona Beach flights
Shreveport to Fort Lauderdale flights
Lafayette to Key West flights
Monroe to Fort Lauderdale flights
Shreveport to Panama City flights
Baton Rouge to Panama City flights
Baton Rouge to West Palm Beach flights
New Orleans to Pensacola flights
Shreveport to Tampa flights
Shreveport to West Palm Beach flights
Baton Rouge to Pensacola flights
Lafayette to Pensacola flights
Shreveport to Fort Myers flights
New Orleans to Daytona Beach flights
New Orleans to Panama City flights
Baton Rouge to Melbourne flights
Baton Rouge to Key West flights
Lake Charles to Miami flights
Shreveport to Key West flights
Baton Rouge to Fort Myers flights
Shreveport to Melbourne flights

Top 6 airlines flying from New Orleans to Key Largo

Discover the top 6 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$76Average$153FlexibilityNo cancel feeOn-time65%
Breeze AirwaysCheapest$135Average$179FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$178Average$315FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$337FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$374FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$200Average$355FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.