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Cheap flights from Buffalo to Key Largo from C$ 109

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — MIA
17 Jun — 24 Jun1
1 adult

Cheapflights Tip: The best prices from Buffalo to Key Largo are usually found in September or June, booked 33 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Buffalo to Key Largo

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

Round-trip from

C$ 228

One-way from

C$ 109

Popular in

December

Cheapest in

September

Average price

C$ 392
Southwest
  • Southwest
  • 24/6-25/6
  • 2 total stops
  • 12h 55m total
  • Buffalo to Key Largo
Search Deals
Southwest
  • Southwest
  • 4/7
  • 1 total stop
  • 7h 55m total
  • Buffalo to Key Largo
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 12 June 2025.

Tue 24/62:05 p.m.BUF - MIA
1 stop7h 50mSouthwest
Wed 25/67:10 a.m.MIA - BUF
1 stop5h 05mSouthwest
Deal found 10/6C$ 228
Fri 24/103:50 p.m.BUF - MIA
1 stop5h 46mDelta
Mon 27/108:45 a.m.MIA - BUF
1 stop6h 14mDelta
Deal found 11/6C$ 269
Tue 24/66:15 a.m.BUF - MIA
1 stop5h 29mUnited Airlines
Tue 1/712:20 p.m.MIA - BUF
2 stops11h 18mUnited Airlines
Deal found 10/6C$ 290
Fri 25/77:37 p.m.BUF - MIA
1 stop5h 00mAmerican Airlines
Fri 1/82:55 p.m.MIA - BUF
1 stop7h 09mAmerican Airlines
Deal found 10/6C$ 305
Sun 10/81:14 p.m.BUF - MIA
1 stop7h 25mFrontier
Fri 15/86:42 p.m.MIA - BUF
1 stop17h 29mFrontier
Deal found 12/6C$ 376
Fri 27/65:37 p.m.BUF - MIA
1 stop6h 22mJetBlue
Tue 1/76:00 a.m.MIA - BUF
1 stop6h 58mJetBlue
Deal found 10/6C$ 496
Fri 4/711:29 a.m.BUF - MIA
3 stops36h 13mMultiple Airlines
Thu 10/711:11 a.m.MIA - BUF
2 stops23h 21mMultiple Airlines
Deal found 10/6C$ 585

Cheapflights Fare Finder

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 629,999 searches. Data last updated 12 June 2025.
Use the filters below to find and compare flights from Buffalo to Key Largo that are best for you.

Fly from

Buffalo

Fly to

Key Largo

Route

Depart

Return

Price

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Tue 24/6

2:05 p.m.-9:55 p.m.

1 stop7h 50m

Miami

Wed 25/6

7:10 a.m.-12:15 p.m.

1 stop5h 05m

C$ 228

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Fri 24/10

3:50 p.m.-9:36 p.m.

1 stop5h 46m

Miami

Mon 27/10

8:45 a.m.-2:59 p.m.

1 stop6h 14m

C$ 269

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Tue 24/6

6:15 a.m.-11:44 a.m.

1 stop5h 29m

Miami

Tue 1/7

12:20 p.m.-11:38 p.m.

2 stops11h 18m

C$ 290

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Fri 25/7

7:37 p.m.-12:37 a.m.

1 stop5h 00m

Miami

Fri 1/8

2:55 p.m.-10:04 p.m.

1 stop7h 09m

C$ 305

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Sun 10/8

1:14 p.m.-8:39 p.m.

1 stop7h 25m

Miami

Fri 15/8

6:42 p.m.-12:11 p.m.

1 stop17h 29m

C$ 376

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Fri 27/6

5:37 p.m.-11:59 p.m.

1 stop6h 22m

Miami

Tue 1/7

6:00 a.m.-12:58 p.m.

1 stop6h 58m

C$ 496

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Fri 4/7

11:29 a.m.-11:42 p.m.

3 stops36h 13m

Miami

Thu 10/7

11:11 a.m.-10:32 a.m.

2 stops23h 21m

C$ 585

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Fri 4/7

10:00 a.m.-5:55 p.m.

1 stop7h 55m

C$ 109

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Thu 3/7

7:00 a.m.-3:10 p.m.

1 stop8h 10m

C$ 142

BuffaloMiami

BUF - MIA

BUFMIA

Buffalo

Mon 21/7

9:01 a.m.-5:10 p.m.

1 stop8h 09m

C$ 149

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 12 results
1
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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.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Key Largo

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 9 June 2025.

The best time to book flights from Buffalo to Key Largo is 33 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, April is the cheapest month in which you can book a flight from Buffalo to Key Largo (average of C$ 251). Flying from Buffalo to Key Largo in August is currently the most expensive (average of C$ 369). 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 12 June 2025.

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

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 16 December 2024.

Travelers seeking maximum savings on their Buffalo to Key Largo flight should consider departing on Thursday evenings 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 41.0 - 252.0 mm per month. September is typically the wettest month, when rainfall can reach 252.0 mm. January is typically the driest time to visit Key Largo when rainfall is around 41.0 mm.

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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

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 12 June 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Buffalo to Key Largo to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,925 reviews
Southwest
8.0
Very good
4,287 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews
Check prices

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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?

    Buffalo (BUF) is the airport you will fly out of if you book a flight from Buffalo to Key Largo. You should not have trouble finding flights to Key Largo from Buffalo; the airport handles an average of 0 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Buffalo airport to Key Largo. It is only a 13.4 km journey to Buffalo (BUF) from Buffalo’s city centre.

  • How popular is this Buffalo to Key Largo flight route?

    The Buffalo to Key Largo flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as C$ 109. Users have also found prices from C$ 142 and C$ 149 on United Airlines and Delta, respectively.

  • 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, April is the cheapest month in which you can book a flight from Buffalo to Key Largo (average of C$ 251). Flying from Buffalo to Key Largo in August is currently the most expensive (average of C$ 369). 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

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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 629,999 searches. Data last updated 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 133AverageC$ 373FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FrontierCheapestC$ 160AverageC$ 309FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 187AverageC$ 376FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 233AverageC$ 574FlexibilityNo cancel feeOn-time63%
Search Southwest flights
DeltaCheapestC$ 286AverageC$ 370FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 352AverageC$ 704FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Buffalo to Key Largo?

Cheapflights helps you search for flights from Buffalo to Key Largo via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Key Largo?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Key Largo from Buffalo.

Can Cheapflights find flights from Buffalo to Key Largo with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Buffalo to Key Largo, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Buffalo to Key Largo become cheaper?

Yes, Cheapflights offers price alerts on Buffalo to Key Largo flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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