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Key Largo

$108+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — MIA
may. 5 — may. 121
lun. 5/5
lun. 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Key Largo are usually found in September or August, booked 23 days in advance, depart on a Thursday or Saturday and return on a Tuesday

Cheap flight deals from Las Vegas to Key Largo

Keep the following information in mind while searching for Las Vegas to Key Largo flight deals. Data was last updated abril 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$169
(Trip.com)

One-way from

$108
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$354
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. 11% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 30, 2025.

This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/121:32 pmLAS - MIA
1 stop27h 26mSpirit Airlines
mar. 5/208:55 pmMIA - LAS
Nonstop5h 26mSpirit Airlines
Deal found 4/28$169
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
jue. 6/129:48 pmLAS - MIA
Nonstop4h 57mMultiple Airlines
sáb. 6/218:55 pmMIA - LAS
Nonstop5h 35mMultiple Airlines
Deal found 4/28$171
This eDestinos deal was found by Cheapflights users on 4/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/1312:59 amLAS - MIA
1 stop25h 23mFrontier
lun. 5/194:16 pmMIA - LAS
1 stop10h 24mFrontier
Deal found 4/28$224
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/17:36 pmLAS - MIA
1 stop8h 07mAmerican Airlines
mar. 7/88:14 pmMIA - LAS
Nonstop5h 09mAmerican Airlines
Deal found 4/29$251
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/912:55 amLAS - MIA
1 stop7h 02mDelta
mar. 6/1710:28 amMIA - LAS
1 stop9h 33mDelta
Deal found 4/28$257
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/109:45 pmLAS - MIA
2 stops14h 55mSouthwest
mar. 6/176:50 amMIA - LAS
1 stop10h 05mSouthwest
Deal found 4/29$262

Cheapflights Fare Finder

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 abril 30, 2025.
Use the filters below to find and compare flights from Las Vegas to Key Largo that are best for you.

Fly from

Las Vegas

Fly to

Key Largo

Route

Depart

Return

Price

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

lun. 5/12

1:32 pm-7:58 pm

1 stop27h 26m

Miami

mar. 5/20

8:55 pm-11:21 pm

Nonstop5h 26m

$169

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

jue. 6/12

9:48 pm-5:45 am

Nonstop4h 57m

Miami

sáb. 6/21

8:55 pm-11:30 pm

Nonstop5h 35m

$171

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

mar. 5/13

12:59 am-5:22 am

1 stop25h 23m

Miami

lun. 5/19

4:16 pm-11:40 pm

1 stop10h 24m

$224

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

mar. 7/1

7:36 pm-6:43 am

1 stop8h 07m

Miami

mar. 7/8

8:14 pm-10:23 pm

Nonstop5h 09m

$251

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

lun. 6/9

12:55 am-10:57 am

1 stop7h 02m

Miami

mar. 6/17

10:28 am-5:01 pm

1 stop9h 33m

$257

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

mar. 6/10

9:45 pm-3:40 pm

2 stops14h 55m

Miami

mar. 6/17

6:50 am-1:55 pm

1 stop10h 05m

$262

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

mar. 5/27

10:20 am-10:16 pm

1 stop8h 56m

$108

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

vie. 5/9

12:59 am-5:22 am

1 stop25h 23m

$113

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

mar. 5/20

11:20 pm-12:20 pm

1 stop10h 00m

$115

Las VegasMiami

LAS - MIA

LASMIA

Las Vegas Harry Reid Intl

vie. 5/2

11:12 am-11:26 pm

2 stops33h 14m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 16 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.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to Key Largo

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 April 25, 2025.

The best time to book flights from Las Vegas 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 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 $228). 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 abril 30, 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 at noon 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 abril 30, 2025.

The most flights from LAS to KE9 are scheduled on a Tuesday (15 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (7 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 abril 30, 2025.
Read through reviews of airlines operating flights from Las Vegas to Key Largo, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,922 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 9 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, 25 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 Spirit Airlines ($108), Frontier ($113), and Sun Country Air ($150).

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

    Consider Spirit Airlines (96%), Finnair (86%) or British Airways (81%) 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 $1,059 for a flight from Las Vegas to Key Largo. The cheapest flight overall is $108 while the most popular route, (Las Vegas Harry Reid Intl - Miami) is currently priced at $91.

  • 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 $228). 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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$172FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$96Average$221FlexibilityNo cancel feeOn-time65%
DeltaCheapest$138Average$357FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$168Average$325FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$208Average$372FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$226Average$388FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$271Average$394FlexibilityNo cancel feeOn-time63%

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