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$72+ Cheap flights from Key Largo, FL to Las Vegas (LAS)

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Key Largo to Las Vegas Harry Reid Intl are usually found in September or January, booked 41 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Key Largo to Las Vegas

Keep the following information in mind while searching for Key Largo to Las Vegas flight deals. Data was last updated June 12, 2025.

Round-trip from

$147
(Flightnetwork)

One-way from

$72
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$338
From Key Largo to Las Vegas Harry Reid Intl
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One-way flight from Key Largo to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Key Largo to Las Vegas

Cheapest flights from Key Largo to Las Vegas
Explore the most affordable flight options available from Key Largo to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Flightnetwork deal was found by Cheapflights users on 6/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/268:55 pmMIA - LAS
Nonstop5h 34mSpirit Airlines
Sun 6/2910:20 pmLAS - MIA
Nonstop4h 35mSpirit Airlines
Deal found 6/11$147
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 6/308:55 pmMIA - LAS
Nonstop5h 34mMultiple Airlines
Fri 7/49:48 pmLAS - MIA
Nonstop4h 57mMultiple Airlines
Deal found 6/11$148
This Southwest deal was found by Cheapflights users on 6/10. 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.
Sun 8/34:05 pmMIA - LAS
1 stop8h 55mSouthwest
Wed 8/610:30 amLAS - MIA
1 stop7h 10mSouthwest
Deal found 6/10$162
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Wed 7/96:00 amMIA - LAS
1 stop8h 02mFrontier
Wed 7/169:48 pmLAS - MIA
Nonstop4h 57mFrontier
Deal found 6/10$173
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/58:14 pmMIA - LAS
Nonstop5h 09mAmerican Airlines
Tue 8/129:24 amLAS - MIA
Nonstop5h 06mAmerican Airlines
Deal found 6/10$242
This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 7/217:23 pmMIA - LAS
1 stop7h 36mDelta
Mon 7/2812:34 amLAS - MIA
1 stop7h 18mDelta
Deal found 6/10$257

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Las Vegas 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 June 12, 2025.
Use the filters below to find and compare flights from Key Largo to Las Vegas that are best for you.

Fly from

Key Largo

Fly to

Las Vegas

Route

Depart

Return

Price

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Thu 6/26

8:55 pm-11:29 pm

Nonstop5h 34m

Las Vegas Harry Reid Intl

Sun 6/29

10:20 pm-5:55 am

Nonstop4h 35m

$147

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Mon 6/30

8:55 pm-11:29 pm

Nonstop5h 34m

Las Vegas Harry Reid Intl

Fri 7/4

9:48 pm-5:45 am

Nonstop4h 57m

$148

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Sun 8/3

4:05 pm-10:00 pm

1 stop8h 55m

Las Vegas Harry Reid Intl

Wed 8/6

10:30 am-8:40 pm

1 stop7h 10m

$162

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Wed 7/9

6:00 am-11:02 am

1 stop8h 02m

Las Vegas Harry Reid Intl

Wed 7/16

9:48 pm-5:45 am

Nonstop4h 57m

$173

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Tue 8/5

8:14 pm-10:23 pm

Nonstop5h 09m

Las Vegas Harry Reid Intl

Tue 8/12

9:24 am-5:30 pm

Nonstop5h 06m

$242

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Mon 7/21

7:23 pm-11:59 pm

1 stop7h 36m

Las Vegas Harry Reid Intl

Wed 7/30

12:40 am-1:38 pm

1 stop9h 58m

$257

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Wed 7/2

8:55 pm-11:29 pm

Nonstop5h 34m

$72

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Sat 8/23

6:15 am-1:21 pm

1 stop10h 06m

$73

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Mon 7/14

2:40 pm-9:25 pm

1 stop9h 45m

$95

MiamiLas Vegas

MIA - LAS

MIALAS

Miami

Wed 6/25

7:22 pm-12:04 am

1 stop7h 42m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 15 results
1
2

Best time to book a flight from Key Largo to Las Vegas

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Las Vegas. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Key Largo to Las Vegas, you should look to book at least 41 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Key Largo to Las Vegas (average of $198). Flying from Key Largo to Las Vegas in March is currently the most expensive (average of $269). 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 LAS?

Find hourly flight availability from Key Largo to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Las Vegas as you normally would.

What is the cheapest day to fly from Key Largo to Las Vegas?

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

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

Weekly flight availability from Key Largo to Las Vegas

Explore weekly flight availability from Key Largo to Las Vegas. 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 June 12, 2025.

The most flights from KE9 to LAS are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, 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 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. 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 Las Vegas. Reviews last updated June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Key Largo to Las Vegas have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

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 Key Largo to Las Vegas. 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 Las Vegas from Key Largo?

    For a flight from Key Largo to Las Vegas, you will be flying into Harry Reid Intl. Las Vegas Harry Reid Intl (LAS) is just 6.2 mi from the center of the city. Harry Reid Intl is the only Las Vegas airport and it handles 12 inbound flights from Key Largo per day. 7 airlines have flights to Las Vegas Harry Reid Intl from Key Largo on a regular basis.

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

    Flights from Key Largo to Las Vegas Harry Reid Intl have been viewed 82 times in the past calendar month.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $72. Frontier flights start at $73 while deals on Southwest start at $95 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Key Largo to Las Vegas on time: GOL (82%), British Airways (81%), Frontier (80%).

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

    Looking for the cheapest flight from Key Largo to Las Vegas? While on average our users pay $901, our data indicates the cheapest price to be $63. The most popular route (Miami - Las Vegas Harry Reid Intl), is priced around $93.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Key Largo to Las Vegas (average of $198). Flying from Key Largo to Las Vegas in March is currently the most expensive (average of $269). 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 Key Largo?

Book flights to Key Largo if you plan to visit one of these locations
Henderson
Paradise
North Las Vegas
Sunrise Manor
Winchester
Primm
Mount Charleston
Kingman
Mesquite
Needles
Boulder City

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Top 7 airlines flying from Key Largo to Las Vegas

Discover the top 7 airlines that operate flights from Key Largo to Las Vegas. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$95Average$223FlexibilityNo cancel feeOn-time65%
FrontierCheapest$124Average$204FlexibilityNo cancel feeOn-time62%
DeltaCheapest$132Average$330FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$175Average$375FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$198Average$362FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$349FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$245Average$420FlexibilityNo cancel feeOn-time63%

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