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Key Largo

$70+ Cheap flights from Las Vegas (LAS) 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — MIA
Feb 9 — Feb 161
Sun 2/9
Sun 2/16
1 adult, Economy
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The best prices from Las Vegas Harry Reid Intl to Key Largo are usually found in September or August, booked 29 days in advance, depart on a Thursday or Saturday and return on a Tuesday

Cheap flight deals from Las Vegas to Key Largo

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Key Largo (KE9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$139
(Kiwi.com)

One-way from

$70
(Frontier)

Popular in

March

Cheapest in

September

Average price

$281
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Miami flight deals.
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Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Miami flights.
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From Las Vegas Harry Reid Intl to Key Largo
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One-way flight from Las Vegas Harry Reid Intl to Key Largo
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Highest demand for flights based on searches. 8% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Las Vegas to Key Largo

Cheapest flights from Las Vegas to Key Largo
Explore the most affordable flight options available from Las Vegas to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 2/4. 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 2/2611:12 pmLAS - MIA
1 stop8h 59mMultiple Airlines
Fri 2/289:16 pmMIA - LAS
1 stop17h 04mMultiple Airlines
Deal found 2/4$139
This Cheapflightsfares deal was found by Cheapflights users on 2/4. 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.
Fri 2/2111:49 pmLAS - MIA
1 stop8h 51mSpirit Airlines
Sun 3/28:55 pmMIA - LAS
Nonstop5h 42mSpirit Airlines
Deal found 2/4$140
This Cheapflightsfares deal was found by Cheapflights users on 2/4. 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.
Thu 2/2010:12 amLAS - MIA
1 stop10h 36mFrontier
Sun 2/236:25 amMIA - LAS
1 stop11h 08mFrontier
Deal found 2/4$147
This Southwest deal was found by Cheapflights users on 2/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:00 amLAS - MIA
1 stop5h 50mSouthwest
Sat 3/811:05 amMIA - LAS
2 stops10h 10mSouthwest
Deal found 2/4$262
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Wed 4/2311:46 pmLAS - MIA
Nonstop4h 39mAmerican Airlines
Sat 4/268:08 amMIA - LAS
1 stop8h 34mAmerican Airlines
Deal found 2/3$273
This Delta deal was found by Cheapflights users on 2/4. 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.
Fri 5/3010:10 pmLAS - MIA
1 stop10h 23mDelta
Mon 6/97:35 pmMIA - LAS
1 stop7h 45mDelta
Deal found 2/4$288
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 3/412:59 amLAS - MIA
1 stop7h 17mUnited Airlines
Wed 3/1211:35 amMIA - LAS
2 stops11h 51mUnited Airlines
Deal found 2/3$293

Find flights from Las Vegas to Key Largo within your budget

Customize your flight search to find flights from Las Vegas 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 February 4, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Tue 3/11

12:59 am-2:08 pm

1 stop10h 09m

Miami

Tue 3/18

9:28 am-4:32 pm

1 stop10h 04m

$139

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Wed 3/5

5:00 am-6:15 pm

1 stop10h 15m

Miami

Wed 3/12

9:28 am-7:12 am

2 stops24h 44m

$140

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Tue 4/1

11:00 pm-3:00 pm

1 stop13h 00m

Miami

Sat 4/5

10:27 am-7:06 pm

1 stop11h 39m

$155

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Wed 4/23

11:46 pm-7:25 am

Nonstop4h 39m

Miami

Mon 4/28

6:45 pm-9:16 pm

Nonstop5h 31m

$240

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Mon 3/17

12:40 am-10:55 am

1 stop7h 15m

Miami

Tue 3/18

6:10 pm-11:25 pm

1 stop8h 15m

$257

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Tue 3/18

12:59 am-2:08 pm

1 stop10h 09m

$70

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Tue 2/25

9:59 pm-6:15 pm

2 stops17h 16m

$74

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Tue 3/11

10:05 pm-2:55 pm

2 stops13h 50m

$110

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Fri 5/9

12:35 am-10:51 am

1 stop7h 16m

$129

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

Wed 4/9

10:22 pm-6:00 am

Nonstop4h 38m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 13 results
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Best time to book a flight from Las Vegas to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Las Vegas 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.

Travel insights for flights from Las Vegas to Key Largo

Get recent, data-driven insights about flights from Las Vegas to Key Largo including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to Key Largo. Price data was last updated on January 31, 2025.

The best time to book flights from Las Vegas to Key Largo is 29 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 Las Vegas to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Las Vegas to Key Largo (average of $231). Flying from Las Vegas 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 LAS to KE9?

Find hourly flight availability from Las Vegas 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 February 4, 2025.

When flying from Las Vegas 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 Las Vegas to Key Largo?

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

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

Weekly flight availability from Las Vegas to Key Largo

Explore weekly flight availability from Las Vegas 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 February 4, 2025.

The most flights from LAS to KE9 are scheduled on a Tuesday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

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 February 4, 2025.
Read through reviews of airlines operating flights from Las Vegas to Key Largo, such as Southwest, Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

4.0
Okay

Diane,Sep 2023

DCA - MCO

Better communication regards to the multiple delays and when on the flight the wifi didn't woek

Southwest
8.1
Very good
4,560 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

4.0
Okay

Diane,Sep 2023

DCA - MCO

Better communication regards to the multiple delays and when on the flight the wifi didn't woek

Alaska Airlines
8.0
Very good
9,678 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

4.0
Okay

Diane,Sep 2023

DCA - MCO

Better communication regards to the multiple delays and when on the flight the wifi didn't woek

Delta
8.0
Very good
8,408 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

4.0
Okay

Diane,Sep 2023

DCA - MCO

Better communication regards to the multiple delays and when on the flight the wifi didn't woek

United Airlines
7.4
Good
8,887 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

4.0
Okay

Diane,Sep 2023

DCA - MCO

Better communication regards to the multiple delays and when on the flight the wifi didn't woek

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

4.0
Okay

Diane,Sep 2023

DCA - MCO

Better communication regards to the multiple delays and when on the flight the wifi didn't woek

Related info for your journey

Find useful and relevant information for your journey from Las Vegas 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 Las Vegas to Key Largo?

    If you book a flight to Key Largo from Las Vegas, you will be flying from Harry Reid Intl, which is the city’s only airport. Las Vegas Harry Reid Intl (LAS) is located 6.2 mi from the center of Las Vegas. There are 12 flights from Harry Reid Intl to Key Largo per day from 7 different airlines.

  • How popular is this Las Vegas to Key Largo flight route?

    Within the past month, 35 users have taken a look at flights from Las Vegas Harry Reid Intl to Key Largo.

  • What are the cheapest airlines to fly from Las Vegas to Key Largo one-way?

    The cheapest airlines for a one-way flight from Las Vegas to Key Largo are Frontier ($70), Spirit Airlines ($74), and Southwest ($110).

  • What are the most reliable airlines from Las Vegas to Key Largo?

    Consider Spirit Airlines (93%), Qatar Airways (87%) or American Airlines (86%) when booking your flight. These represent the most reliable airlines when flying from Las Vegas to Key Largo.

  • What are the cheapest flights from Las Vegas to Key Largo?

    On average you can expect to pay $662 for a flight from Las Vegas to Key Largo. The cheapest flight overall is $70 while the most popular route, (Las Vegas Harry Reid Intl - Miami) is currently priced at $99.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Las Vegas 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 Las Vegas to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Las Vegas to Key Largo (average of $231). Flying from Las Vegas 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.

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Top 7 airlines flying from Las Vegas to Key Largo

Discover the top 7 airlines that operate flights from Las Vegas 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 February 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$167FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$98Average$226FlexibilityNo cancel feeOn-time65%
DeltaCheapest$138Average$387FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$144Average$328FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$192Average$374FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$211Average$395FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$309Average$418FlexibilityNo cancel feeOn-time63%
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