$113+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — MIA
Feb 28 — Mar 71
1 adult, Economy
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Find cheap flights from Las Vegas 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 Las Vegas Harry Reid Intl to Key Largo are usually found in August or June, booked 32 days in advance, depart on a Tuesday or Wednesday and return on a Saturday
Cheap flight deals from Las Vegas to Key Largo
Cheapest flights from Las Vegas to Key LargoExplore 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 January 29, 2026.
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 January 29, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:56 pm
LAS
- MIA
1 stop10h 33m
Frontier
Wed 4/158:42 am
MIA
- LAS
Nonstop5h 44m
Frontier
Deal found 1/28![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 1/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:49 pm
LAS
- MIA
Nonstop4h 43m
Frontier
Thu 4/305:45 pm
MIA
- LAS
1 stop9h 05m
Frontier
Deal found 1/27![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:59 pm
LAS
- MIA
1 stop7h 29m
Frontier
Mon 2/237:16 pm
MIA
- LAS
2 stops21h 50m
Frontier
Deal found 1/27![Frontier logo]()
$191
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:05 am
LAS
- MIA
1 stop9h 55m
Frontier
Sat 3/78:08 pm
MIA
- LAS
1 stop26h 07m
Frontier
Deal found 1/28![Frontier logo]()
$192
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Wed 2/1111:51 am
LAS
- MIA
1 stop22h 37m
Spirit Airlines
Mon 2/239:18 pm
MIA
- LAS
1 stop24h 24m
Spirit Airlines
Deal found 1/27![Spirit Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/303:35 pm
LAS
- MIA
1 stop24h 58m
Multiple Airlines
Tue 3/37:05 am
MIA
- LAS
2 stops19h 39m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:00 am
LAS
- MIA
1 stop6h 04m
Multiple Airlines
Thu 4/305:45 pm
MIA
- LAS
1 stop9h 05m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$196
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/241:53 pm
LAS
- MIA
2 stops18h 47m
Spirit Airlines
Tue 3/39:18 pm
MIA
- LAS
2 stops16h 08m
Spirit Airlines
Deal found 1/27![Spirit Airlines logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:41 pm
LAS
- MIA
1 stop29h 33m
Frontier
Sat 2/286:25 am
MIA
- LAS
1 stop29h 16m
Frontier
Deal found 1/27![Frontier logo]()
$198
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Tue 3/1011:29 pm
LAS
- MIA
Nonstop4h 36m
American Airlines
Tue 3/177:40 pm
MIA
- LAS
Nonstop5h 49m
American Airlines
Deal found 1/27![American Airlines logo]()
$199
This Frontier deal was found by Cheapflights users on 1/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:49 pm
LAS
- MIA
Nonstop4h 43m
Frontier
Fri 5/18:42 am
MIA
- LAS
Nonstop5h 44m
Frontier
Deal found 1/27![Frontier logo]()
$200
Find 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 January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $189 (Cheapflightsfares) |
One-way from | $113 (Trip.com) |
Popular in | December |
Cheapest in | August |
Average price | $320 |
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 January 29, 2026.
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
Sat 4/18
10:33 am-9:40 pm
1 stop8h 07m
Miami
Sat 4/25
3:47 pm-10:54 pm
1 stop10h 07m
$195
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Tue 4/21
11:49 pm-7:32 am
Nonstop4h 43m
Miami
Sun 4/26
8:42 am-11:26 am
Nonstop5h 44m
$200
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Tue 3/10
6:00 am-5:38 am
1 stop20h 38m
Miami
Sat 3/14
5:05 am-7:20 pm
2 stops17h 15m
$220
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Mon 2/23
10:21 am-8:51 pm
1 stop7h 30m
Miami
Mon 3/2
7:50 am-9:42 pm
1 stop16h 52m
$228
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Wed 3/25
8:20 am-10:15 pm
2 stops10h 55m
Miami
Tue 3/31
5:30 am-12:25 pm
2 stops9h 55m
$229
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Wed 3/11
10:15 am-9:40 pm
2 stops8h 25m
Miami
Tue 3/17
5:30 am-12:25 pm
2 stops9h 55m
$229
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Tue 2/10
6:00 am-3:30 pm
1 stop6h 30m
Miami
Tue 2/17
7:00 am-1:10 pm
2 stops9h 10m
$257
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Tue 6/16
11:25 pm-11:31 am
1 stop9h 06m
Miami
Sat 6/20
7:15 am-12:43 pm
1 stop8h 28m
$317
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Sat 4/18
11:10 pm-5:18 pm
2 stops15h 08m
Miami
Sat 4/25
3:59 pm-11:01 pm
1 stop10h 02m
$318
Las VegasMiami
LAS - MIA
LASMIA
Las Vegas Harry Reid Intl
Tue 3/17
10:15 am-9:40 pm
2 stops8h 25m
Miami
Thu 3/19
2:00 pm-9:45 pm
2 stops10h 45m
$341
Showing 1-10 of 24 results
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 January 23, 2026.
The best time to book flights from Las Vegas to Key Largo is 31 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 $66). Flying from Las Vegas to Key Largo in October is currently the most expensive (average of $168). 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 January 29, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 36% on flights from Las Vegas to Key Largo by exploring options for tickets in the afternoon.
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 January 24, 2026.
Travelers seeking maximum savings on their Las Vegas to Key Largo flight should consider departing on Sunday at noon 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 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 January 29, 2026.
The most flights from LAS to KE9 are scheduled on a Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 January 29, 2026.
Read through reviews of airlines operating flights from Las Vegas to Key Largo, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
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.
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Alternative routes for Las Vegas to Key Largo
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Las Vegas to Key Largo
Discover the top 8 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 January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$63 | Average$190 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$78 | Average$203 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$129 | Average$444 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$133 | Average$301 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$158 | Average$329 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$182 | Average$358 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$192 | Average$361 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$373 | FlexibilityNo cancel fee | On-time71% |