HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$54+ Cheap flights from Buffalo (BUF) 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — MIA
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo 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.

The best prices from Buffalo to Key Largo are usually found in September or August, booked 44 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Buffalo to Key Largo

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$167
(American Airlines)

One-way from

$54
(Frontier)

Popular in

December

Cheapest in

September

Average price

$317
Provider with most accurate pricing for Buffalo-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Miami flights.
Search Deals
From Buffalo to Key Largo
Search Deals
One-way flight from Buffalo to Key Largo
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Buffalo to Key Largo

Cheapest flights from Buffalo to Key Largo
Explore the most affordable flight options available from Buffalo to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Southwest deal was found by Cheapflights users on 1/30. 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 2/253:55 pmBUF - MIA
1 stop6h 30mSouthwest
Wed 2/268:25 amMIA - BUF
2 stops9h 55mSouthwest
Deal found 1/30$172
This American Airlines deal was found by Cheapflights users on 1/30. 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.
Sun 3/27:08 pmBUF - MIA
1 stop5h 25mAmerican Airlines
Sat 3/86:45 amMIA - BUF
1 stop5h 32mAmerican Airlines
Deal found 1/30$177
This Frontier deal was found by Cheapflights users on 1/30. 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.
Thu 2/272:59 pmBUF - MIA
1 stop5h 30mFrontier
Sat 3/16:00 amMIA - BUF
1 stop7h 17mFrontier
Deal found 1/30$179
This JetBlue deal was found by Cheapflights users on 1/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/248:45 amBUF - MIA
1 stop9h 37mJetBlue
Wed 3/267:00 amMIA - BUF
1 stop5h 35mJetBlue
Deal found 1/29$196
This Delta deal was found by Cheapflights users on 1/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/262:55 pmBUF - MIA
1 stop7h 41mDelta
Sat 3/297:00 amMIA - BUF
1 stop6h 31mDelta
Deal found 1/29$217
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Thu 2/67:00 amBUF - MIA
1 stop7h 57mUnited Airlines
Tue 3/117:00 amMIA - BUF
2 stops11h 46mUnited Airlines
Deal found 1/30$227

Find flights from Buffalo to Key Largo within your budget

Customize your flight search to find flights from Buffalo 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 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Thu 2/20

7:08 pm-12:33 am

1 stop5h 25m

Miami

Thu 2/27

6:40 am-11:44 am

1 stop5h 04m

$167

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Tue 3/4

3:55 pm-10:25 pm

1 stop6h 30m

Miami

Tue 3/11

1:25 pm-8:50 pm

2 stops7h 25m

$172

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Thu 2/27

2:59 pm-8:29 pm

1 stop5h 30m

Miami

Sat 3/1

6:00 am-1:17 pm

1 stop7h 17m

$179

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Mon 3/24

8:45 am-6:22 pm

1 stop9h 37m

Miami

Wed 3/26

7:00 am-12:35 pm

1 stop5h 35m

$196

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Wed 3/26

2:55 pm-10:36 pm

1 stop7h 41m

Miami

Sat 3/29

7:00 am-1:31 pm

1 stop6h 31m

$217

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Sat 3/1

3:00 pm-8:26 pm

1 stop5h 26m

Miami

Thu 3/6

12:24 pm-11:56 pm

2 stops11h 32m

$300

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Sat 3/1

2:47 pm-9:51 pm

1 stop7h 04m

$54

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Sat 3/15

4:35 pm-7:55 pm

Nonstop3h 20m

$74

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Wed 3/12

7:50 am-2:55 pm

2 stops7h 05m

$89

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Tue 2/25

8:43 am-4:39 pm

1 stop7h 56m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 13 results
1
2

Best time to book a flight from Buffalo to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Buffalo 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 Buffalo to Key Largo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Key Largo. Price data was last updated on January 24, 2025.

The best time to book flights from Buffalo to Key Largo is 44 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 Buffalo to Key Largo?

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

Find hourly flight availability from Buffalo 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 30, 2025.

When flying from Buffalo 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 Buffalo to Key Largo?

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

Travelers seeking maximum savings on their Buffalo to Key Largo flight should consider departing on Monday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 January 30, 2025.
Get a feel of what it's like to fly with Southwest, Delta and JetBlue from Buffalo to Key Largo by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,454 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,153 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,913 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

    For a flight from Buffalo to Key Largo, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 0 outbound flights to Key Largo per day. 6 airlines have flights to Key Largo from Buffalo on a regular basis.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $54. American Airlines flights start at $74 while deals on Southwest start at $89 one-way.

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

    The top 3 most reliable airlines when flying from Buffalo to Key Largo are Qatar Airways (95%), American Airlines (92%) and Republic Airways (92%).

  • What are the cheapest flights from Buffalo to Key Largo?

    Looking at all options, your cheapest flight can be booked for $213. While the most popular route (Buffalo - Miami) can be booked for $150 on average our data indicates $423 when flying from Buffalo to Key Largo.

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

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

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

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

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

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

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

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 Buffalo to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
Newark to Miami flights
LaGuardia to Miami flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
Newark to Orlando flights
John F Kennedy Intl to West Palm Beach flights
LaGuardia to Orlando flights
Newark to West Palm Beach flights
Newark to Tampa flights
LaGuardia to Tampa flights
John F Kennedy Intl to Tampa flights
LaGuardia to West Palm Beach flights
Newark to Fort Myers flights
Islip to Fort Lauderdale flights
LaGuardia to Fort Myers flights
Islip to Orlando flights
White Plains to Fort Lauderdale flights
John F Kennedy Intl to Fort Myers flights
Newark to Sarasota flights
White Plains to Miami flights
Newark to Key West flights
Newark to Jacksonville flights
LaGuardia to Sarasota flights
Buffalo to Orlando flights
White Plains to West Palm Beach flights
Stewart to Orlando flights
Islip to West Palm Beach flights
Stewart to Fort Lauderdale flights
Syracuse to Orlando flights
John F Kennedy Intl to Jacksonville flights
John F Kennedy Intl to Key West flights
John F Kennedy Intl to Sarasota flights
White Plains to Orlando flights
LaGuardia to Key West flights
Islip to Tampa flights
LaGuardia to Jacksonville flights
White Plains to Tampa flights
Rochester to Orlando flights
Buffalo to Fort Lauderdale flights
Albany to Orlando flights
White Plains to Daytona Beach flights
Rochester to Fort Lauderdale flights
Stewart to St Petersburg flights
Rochester to Tampa flights
Buffalo to Tampa flights
LaGuardia to Pensacola flights
Albany to Fort Lauderdale flights

Top 6 airlines flying from Buffalo to Key Largo

Discover the top 6 airlines that operate flights from Buffalo 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$235FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$148Average$377FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$158Average$350FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$410FlexibilityNo cancel feeOn-time69%
DeltaCheapest$199Average$344FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$258Average$470FlexibilityNo cancel feeOn-time63%
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.