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$69+ Cheap flights from Florida Keys to Buffalo (BUF)

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — BUF
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Florida Keys to Buffalo

Keep the following information in mind while searching for Florida Keys to Buffalo flight deals. Data was last updated November 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$203
(American Airlines)

One-way from

$69
(Frontier)
Provider with most accurate pricing for Key West-Buffalo flight deals.
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Provider most trusted by Cheapflights users for Key West-Buffalo flights.
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From Florida Keys to Buffalo
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One-way flight from Florida Keys to Buffalo
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Find flight deals from Florida Keys to Buffalo

Cheapest flights from Florida Keys to Buffalo
Explore the most affordable flight options available from Florida Keys to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This United Airlines deal was found by Cheapflights users on 11/2. 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.
Tue 11/256:05 amMIA - BUF
1 stop5h 31mUnited Airlines
Sat 12/63:03 pmBUF - MIA
2 stops8h 51mUnited Airlines
Deal found 11/2$212
This Southwest deal was found by Cheapflights users on 11/2. 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.
Fri 11/216:20 amMIA - BUF
1 stop5h 40mSouthwest
Sun 11/237:55 amBUF - MIA
1 stop9h 55mSouthwest
Deal found 11/2$213
This Priceline deal was found by Cheapflights users on 10/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/75:01 amMIA - BUF
1 stop8h 46mFrontier
Fri 11/142:42 pmBUF - MIA
1 stop9h 52mFrontier
Deal found 10/31$214
This Delta deal was found by Cheapflights users on 11/1. 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.
Tue 11/257:15 amMIA - BUF
1 stop7h 50mDelta
Mon 12/16:25 pmBUF - MIA
1 stop6h 21mDelta
Deal found 11/1$217
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/148:00 amMIA - BUF
2 stops34h 17mFrontier
Sun 11/162:42 pmBUF - MIA
1 stop9h 52mFrontier
Deal found 11/1$220
This Southwest deal was found by Cheapflights users on 10/31. 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.
Fri 11/76:00 amMIA - BUF
1 stop6h 00mSouthwest
Fri 11/143:40 pmBUF - MIA
1 stop7h 45mSouthwest
Deal found 10/31$228
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Fri 11/217:00 amMIA - BUF
1 stop6h 17mUnited Airlines
Sun 11/236:25 amBUF - MIA
2 stops11h 52mUnited Airlines
Deal found 11/2$237
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Thu 12/188:20 amMIA - BUF
1 stop7h 00mAmerican Airlines
Thu 1/17:15 pmBUF - MIA
1 stop5h 32mAmerican Airlines
Deal found 10/31$239
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 11/77:07 pmMIA - BUF
2 stops23h 10mMultiple Airlines
Fri 11/142:42 pmBUF - MIA
1 stop19h 16mMultiple Airlines
Deal found 10/31$247
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Sat 12/208:00 amMIA - BUF
1 stop10h 10mMultiple Airlines
Mon 12/225:40 pmBUF - MIA
1 stop7h 11mMultiple Airlines
Deal found 11/2$249
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Mon 11/1712:52 pmMIA - BUF
1 stop8h 16mFrontier
Fri 11/2111:52 amBUF - MIA
2 stops31h 57mFrontier
Deal found 11/1$251

Cheapflights Fare Finder

 
Customize your flight search to find flights from Florida Keys to Buffalo 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 November 3, 2025.
Use the filters below to find and compare flights from Florida Keys to Buffalo that are best for you.

Fly from

Florida Keys

Fly to

Buffalo

Route

Depart

Return

Price

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Tue 11/25

6:05 am-11:36 am

1 stop5h 31m

Buffalo

Sat 12/6

3:03 pm-11:54 pm

2 stops8h 51m

$212

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Fri 11/21

6:20 am-12:00 pm

1 stop5h 40m

Buffalo

Sun 11/23

7:55 am-5:50 pm

1 stop9h 55m

$213

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Mon 11/24

6:00 am-11:00 am

1 stop5h 00m

Buffalo

Mon 11/24

6:25 pm-12:46 am

1 stop6h 21m

$217

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Thu 2/19

6:00 am-11:16 am

1 stop5h 16m

Buffalo

Sat 2/21

2:00 pm-9:02 pm

1 stop7h 02m

$217

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Tue 1/6

7:00 am-2:10 pm

1 stop7h 10m

Buffalo

Thu 1/8

2:54 pm-9:10 pm

1 stop6h 16m

$217

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Fri 11/21

7:00 am-1:17 pm

1 stop6h 17m

Buffalo

Sun 11/23

6:25 am-6:17 pm

2 stops11h 52m

$237

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Tue 11/25

6:00 am-11:00 am

1 stop5h 00m

Buffalo

Mon 12/1

6:25 pm-12:46 am

1 stop6h 21m

$248

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Fri 1/16

7:35 am-9:15 pm

2 stops13h 40m

Buffalo

Sun 1/18

5:05 pm-10:00 pm

1 stop4h 55m

$258

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Wed 12/24

6:55 am-2:20 pm

2 stops7h 25m

Buffalo

Thu 1/1

6:15 am-1:05 pm

1 stop6h 50m

$274

MiamiBuffalo

MIA - BUF

MIABUF

Miami

Thu 11/27

6:21 pm-9:29 am

1 stop15h 08m

Buffalo

Sun 11/30

9:53 am-10:49 am

1 stop24h 56m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 31 results
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Best time to book a flight from Florida Keys to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Florida Keys 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 Florida Keys to Buffalo
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated November 3, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from Florida Keys to Buffalo have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,036 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
JetBlue
7.2
Good
2,907 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,117 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Florida Keys to Buffalo. 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 Buffalo from Florida Keys?

    Buffalo (BUF), located 8.3 mi from the city center, is the airport you fly into when you book flights from Florida Keys to Buffalo.

  • How long is the flight from Florida Keys to Buffalo?

    United Airlines, Southwest, and Delta can get you from Florida Keys to Buffalo in just under 5h. Your travel time can differ by up to 40m. Airlines will cover a distance of 1187 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Florida Keys to Buffalo that include hotel bookings?

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

  • How can I find direct flights from Florida Keys to Buffalo?

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

  • Can I find deals for business class flights from Florida Keys to Buffalo?

    Yes. Cheapflights offers flight deals from Florida Keys to Buffalo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Lockport
Cheektowaga
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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Alternative routes for Florida Keys to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Florida Keys to Buffalo

Discover the top 2 airlines that operate flights from Florida Keys to Buffalo. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$318FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$383FlexibilityNo cancel feeOn-time71%

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