HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Mendoza

$273+ Cheap flights from Key Largo, FL to Mendoza (MDZ)

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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — MDZ
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to Mendoza 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 Key Largo to Mendoza El Plumerillo are usually found in September or November, booked 14 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from Key Largo to Mendoza

Cheapest flights from Key Largo to Mendoza
Explore the most affordable flight options available from Key Largo to Mendoza. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Mytrip deal was found by Cheapflights users on 12/16. 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 12/318:40 amMIA - MDZ
2 stops28h 10mMultiple Airlines
Fri 1/309:00 pmMDZ - MIA
3 stops20h 50mMultiple Airlines
Deal found 12/16$672
This Mytrip deal was found by Cheapflights users on 12/16. 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 12/315:25 pmMIA - MDZ
1 stop15h 35mAerolineas Argentinas
Fri 1/306:45 pmMDZ - MIA
1 stop29h 45mAerolineas Argentinas
Deal found 12/16$803
This Copa Airlines deal was found by Cheapflights users on 12/14. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:34 amMIA - MDZ
1 stop16h 40mCopa Airlines
Sat 12/201:17 amMDZ - MIA
1 stop19h 34mCopa Airlines
Deal found 12/14$908
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 12/155:27 pmMIA - MDZ
1 stop28h 47mMultiple Airlines
Sun 12/216:30 pmMDZ - MIA
2 stops23h 53mMultiple Airlines
Deal found 12/14$958
This CrystalTravel deal was found by Cheapflights users on 12/14. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/158:20 amMIA - MDZ
2 stops25h 40mLATAM Airlines
Sun 12/217:55 pmMDZ - MIA
2 stops24h 30mLATAM Airlines
Deal found 12/14$991
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 12/245:27 pmMIA - MDZ
1 stop28h 47mCopa Airlines
Tue 12/301:17 amMDZ - MIA
1 stop25h 28mCopa Airlines
Deal found 12/14$1,000
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 12/245:25 pmMIA - MDZ
1 stop15h 05mMultiple Airlines
Wed 12/319:00 pmMDZ - MIA
2 stops36h 20mMultiple Airlines
Deal found 12/14$1,028
This oojo deal was found by Cheapflights users on 12/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:25 pmMIA - MDZ
2 stops22h 00mAerolineas Argentinas
Wed 12/3110:40 amMDZ - MIA
2 stops21h 20mAerolineas Argentinas
Deal found 12/14$1,041
This Cheapflightsfares deal was found by Cheapflights users on 12/15. 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.
Mon 12/2210:55 pmMIA - MDZ
2 stops32h 25mLATAM Airlines
Sun 1/1810:20 amMDZ - MIA
2 stops21h 50mLATAM Airlines
Deal found 12/15$1,051

Find flight deals from Key Largo to Mendoza

Keep the following information in mind while searching for Key Largo to Mendoza flight deals. Data was last updated December 16, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$551
(LATAM Airlines)

One-way from

$273
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,140
Provider with most accurate pricing for Miami-Mendoza El Plumerillo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Mendoza El Plumerillo flights.
Search Deals
From Key Largo to Mendoza El Plumerillo
Search Deals
One-way flight from Key Largo to Mendoza El Plumerillo
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 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 Key Largo to Mendoza 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 16, 2025.
Use the filters below to find and compare flights from Key Largo to Mendoza that are best for you.

Fly from

Key Largo

Fly to

Mendoza

Route

Depart

Return

Price

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Tue 3/17

9:45 pm-9:20 am

1 stop10h 35m

Mendoza El Plumerillo

Wed 3/18

12:55 pm-6:10 pm

2 stops30h 15m

$551

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Wed 3/4

5:01 am-12:09 am

1 stop17h 08m

Mendoza El Plumerillo

Fri 3/6

1:26 am-6:55 pm

1 stop19h 29m

$614

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Wed 12/31

8:40 am-2:50 pm

2 stops28h 10m

Mendoza El Plumerillo

Fri 1/30

9:00 pm-3:50 pm

3 stops20h 50m

$672

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Wed 3/4

12:53 pm-7:10 pm

2 stops52h 17m

Mendoza El Plumerillo

Sat 3/7

7:50 am-10:51 am

2 stops29h 01m

$675

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Wed 3/4

8:40 am-7:00 pm

2 stops32h 20m

Mendoza El Plumerillo

Sat 3/7

7:45 pm-7:20 am

2 stops37h 35m

$681

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Mon 3/16

6:10 pm-2:50 pm

2 stops19h 40m

Mendoza El Plumerillo

Thu 4/2

9:00 pm-4:50 pm

3 stops20h 50m

$693

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Wed 3/4

5:01 am-12:09 am

1 stop17h 08m

Mendoza El Plumerillo

Sun 3/15

1:26 am-4:40 pm

1 stop16h 14m

$698

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Fri 4/17

6:00 am-12:18 am

1 stop17h 18m

Mendoza El Plumerillo

Sat 4/25

1:23 am-10:23 pm

1 stop22h 00m

$698

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Thu 1/29

8:40 am-8:10 pm

2 stops33h 30m

Mendoza El Plumerillo

Thu 2/5

9:00 pm-3:50 pm

3 stops20h 50m

$732

MiamiMendoza

MIA - MDZ

MIAMDZ

Miami

Wed 12/24

4:10 pm-12:14 am

1 stop30h 04m

$273

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 Key Largo to Mendoza

Have a flexible travel schedule? Discover the best time to fly to Mendoza 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 Mendoza

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Mendoza. Price data was last updated on December 12, 2025.

Booking 14 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Mendoza. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to Mendoza (average of $302). Flying from Key Largo to Mendoza in February is currently the most expensive (average of $785). 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 MDZ?

Find hourly flight availability from Key Largo to Mendoza. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

It’s optimal to fly from Key Largo to Mendoza in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Mendoza

Get insights into the airlines that provide service to Mendoza. 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 Mendoza. Reviews last updated December 16, 2025.
Peruse reviews from past customers who have flown with Aerolineas Argentinas, Copa Airlines, and LATAM Airlines from Key Largo to Mendoza to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aerolineas Argentinas
8.1
Very good
971 reviews

Food

6.5

Comfort

7.6

Boarding

8.0

Entertainment

5.8

Crew

8.4

Overall

8.1

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
Aerolineas Argentinas
8.1
Very good
971 reviews
Aerolineas Argentinas
8.1
Very good
971 reviews

Food

6.5

Comfort

7.6

Boarding

8.0

Entertainment

5.8

Crew

8.4

Overall

8.1

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
Copa Airlines
7.6
Good
1,556 reviews
Aerolineas Argentinas
8.1
Very good
971 reviews

Food

6.5

Comfort

7.6

Boarding

8.0

Entertainment

5.8

Crew

8.4

Overall

8.1

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
LATAM Airlines
7.5
Good
1,891 reviews
Aerolineas Argentinas
8.1
Very good
971 reviews

Food

6.5

Comfort

7.6

Boarding

8.0

Entertainment

5.8

Crew

8.4

Overall

8.1

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500
American Airlines
7.2
Good
11,049 reviews
Aerolineas Argentinas
8.1
Very good
971 reviews

Food

6.5

Comfort

7.6

Boarding

8.0

Entertainment

5.8

Crew

8.4

Overall

8.1

Reviews

1 / 5
2.0
Mediocre

Paula,Aug 2025

EZE - MIA

I can not take the flight because Service dogs are not allowed. I m asking the refund of my flight. Please take care of my request # 00447290197500

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Mendoza. 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 Mendoza from Key Largo?

    If you book a flight to Mendoza from Key Largo, you will be flying to El Plumerillo, which is the city’s only airport. Mendoza El Plumerillo (MDZ) is located 5.1 mi from the center of Mendoza. There are 0 flights from Key Largo to El Plumerillo per day from 4 different airlines.

  • How long is the flight from Key Largo to Mendoza?

    For as low as $551, LATAM Airlines can have you in Mendoza from Key Largo in 10h 35m. The distance between Key Largo and Mendoza is about 4118 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 Mendoza one-way?

    $227 is the cheapest one-way deal found within the past few days, from Copa Airlines. You may also be able to find cheap deals on LATAM Airlines and Aerolineas Argentinas, with prices starting from $280 and $475, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Mendoza 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 Mendoza?

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Mendoza (average of $302). Flying from Key Largo to Mendoza in February is currently the most expensive (average of $785). 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 Key Largo to Mendoza

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Ministro Pistarini flights
Miami to Jorge Newbery flights
Fort Lauderdale to Ministro Pistarini flights
Orlando to Ministro Pistarini flights
Orlando to Jorge Newbery flights
Tampa to Ministro Pistarini flights
Miami to Mendoza flights
Miami to Cordoba flights
Tampa to Jorge Newbery flights
Fort Lauderdale to Jorge Newbery flights
West Palm Beach to Ministro Pistarini flights
Orlando to Cordoba flights
Jacksonville to Ministro Pistarini flights
Miami to Ushuaia flights
Miami to San Carlos de Bariloche flights
Jacksonville to Jorge Newbery flights
Fort Myers to Ministro Pistarini flights
Pensacola to Ministro Pistarini flights
Miami to Rosario flights
Tampa to Mendoza flights
Sarasota to Ministro Pistarini flights
Orlando to Ushuaia flights
Fort Lauderdale to Cordoba flights
Orlando to San Miguel de Tucumán flights
Orlando to Mendoza flights
Miami to San Miguel de Tucumán flights
Tallahassee to Ministro Pistarini flights
Tampa to Cordoba flights
Panama City to Cordoba flights
Miami to Neuquén flights
Fort Lauderdale to Mendoza flights
Daytona Beach to Ministro Pistarini flights
West Palm Beach to Cordoba flights
Miami to Mar del Plata flights
Miami to El Palomar flights
Fort Lauderdale to Rosario flights
Fort Lauderdale to San Carlos de Bariloche flights
Valparaiso to Ministro Pistarini flights

Top 4 airlines flying from Key Largo to Mendoza

Discover the top 4 airlines that operate flights from Key Largo to Mendoza. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$455Average$870FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$622Average$967FlexibilityNo cancel feeOn-time81%
Aerolineas ArgentinasCheapest$748Average$912FlexibilityNo cancel feeOn-time59%
American AirlinesCheapest$855Average$1,303FlexibilityNo cancel feeOn-time71%

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.