$84+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — MIA
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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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.Cheapflights Tip: The best prices from Buffalo to Key Largo are usually found in September or October, booked 81 days in advance, depart on a Wednesday or Friday and return on a Monday
Cheap flight deals from Buffalo to Key Largo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Buffalo to Key LargoExplore 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 July 28, 2026.
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 July 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/2411:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Fri 8/285:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/2211:36 am
BUF
- MIA
1 stop8h 53m
Frontier
Sat 8/295:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/25![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/2811:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Sat 9/55:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/1811:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Tue 8/255:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/301:40 pm
BUF
- MIA
1 stop7h 24m
Frontier
Sun 10/49:43 pm
MIA
- BUF
1 stop15h 12m
Frontier
Deal found 7/27![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/2411:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Mon 8/318:10 am
MIA
- BUF
1 stop26h 19m
Frontier
Deal found 7/27![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:40 pm
BUF
- MIA
1 stop6h 53m
Frontier
Fri 9/185:32 am
MIA
- BUF
1 stop6h 49m
Frontier
Deal found 7/28![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 8/3011:36 am
BUF
- MIA
1 stop25h 56m
Frontier
Tue 9/15:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 9/91:40 pm
BUF
- MIA
1 stop19h 18m
Frontier
Wed 9/165:32 am
MIA
- BUF
1 stop7h 23m
Frontier
Deal found 7/26![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/2111:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Wed 8/265:28 pm
MIA
- BUF
1 stop24h 57m
Frontier
Deal found 7/24![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 9/111:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Wed 9/25:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/23![Frontier logo]()
$209
Best flights from Buffalo to Key LargoDiscover carefully curated flight deals from Buffalo to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
Discover carefully curated flight deals from Buffalo to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:58 pm
BUF
- MIA
1 stop6h 35m
Delta
Mon 10/53:23 pm
MIA
- BUF
1 stop8h 49m
Delta
Deal found 7/27![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 7/25. 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.
Thu 9/312:30 pm
BUF
- MIA
1 stop8h 20m
Southwest
Mon 9/76:20 am
MIA
- BUF
1 stop6h 25m
Southwest
Deal found 7/25![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:30 am
BUF
- MIA
1 stop5h 43m
United Airlines
Wed 9/301:30 pm
MIA
- BUF
2 stops10h 20m
United Airlines
Deal found 7/27![United Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 11/511:00 am
BUF
- MIA
2 stops11h 00m
Southwest
Mon 11/96:05 am
MIA
- BUF
1 stop8h 20m
Southwest
Deal found 7/23![Southwest logo]()
$309
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:00 pm
BUF
- MIA
2 stops8h 05m
Southwest
Mon 9/1412:25 pm
MIA
- BUF
2 stops9h 30m
Southwest
Deal found 7/27![Southwest logo]()
$319
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:50 pm
BUF
- MIA
2 stops8h 15m
Southwest
Mon 10/57:10 am
MIA
- BUF
2 stops11h 30m
Southwest
Deal found 7/27![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 1/206:00 am
BUF
- MIA
2 stops10h 11m
United Airlines
Wed 1/2712:00 pm
MIA
- BUF
1 stop8h 31m
United Airlines
Deal found 7/26![United Airlines logo]()
$392
This Southwest deal was found by Cheapflights users on 7/26. 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 9/44:35 pm
BUF
- MIA
1 stop5h 35m
Southwest
Sun 9/67:55 am
MIA
- BUF
1 stop11h 50m
Southwest
Deal found 7/26![Southwest logo]()
$370
This Southwest deal was found by Cheapflights users on 7/25. 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 11/227:20 am
BUF
- MIA
2 stops8h 00m
Southwest
Fri 11/276:05 am
MIA
- BUF
1 stop5h 55m
Southwest
Deal found 7/25![Southwest logo]()
$426
This Southwest deal was found by Cheapflights users on 7/24. 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.
Thu 11/267:10 am
BUF
- MIA
2 stops8h 55m
Southwest
Wed 12/26:50 am
MIA
- BUF
2 stops8h 20m
Southwest
Deal found 7/24![Southwest logo]()
$428
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 am
BUF
- MIA
2 stops15h 25m
Southwest
Mon 8/2411:45 am
MIA
- BUF
2 stops9h 05m
Southwest
Deal found 7/27![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 7/25. 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 8/3011:30 am
BUF
- MIA
2 stops11h 20m
Southwest
Sat 9/57:45 am
MIA
- BUF
2 stops9h 55m
Southwest
Deal found 7/25![Southwest logo]()
$437
Last-minute flights from Buffalo to Key LargoDiscover last-minute flight deals from Buffalo to Key Largo. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Key Largo. Data last updated July 28, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/1811:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Tue 8/255:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/1911:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Sun 8/238:10 am
MIA
- BUF
1 stop26h 19m
Frontier
Deal found 7/27![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/2111:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Wed 8/265:28 pm
MIA
- BUF
1 stop24h 57m
Frontier
Deal found 7/24![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/2111:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Thu 8/2711:10 am
MIA
- BUF
1 stop7h 15m
Frontier
Deal found 7/27![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/2211:36 am
BUF
- MIA
1 stop8h 53m
Frontier
Sat 8/295:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/25![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/2411:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Fri 8/285:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/2411:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Mon 8/318:10 am
MIA
- BUF
1 stop26h 19m
Frontier
Deal found 7/27![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/2611:36 am
BUF
- MIA
1 stop28h 45m
Frontier
Wed 9/25:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/24![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/2811:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Sat 9/55:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 8/3011:36 am
BUF
- MIA
1 stop25h 56m
Frontier
Wed 9/25:28 pm
MIA
- BUF
1 stop17h 01m
Frontier
Deal found 7/27![Frontier logo]()
$196
One-way flights from Buffalo to Key LargoSearch for one-way flight options from Buffalo to Key Largo. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
Search for one-way flight options from Buffalo to Key Largo. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Deal found 7/28![Frontier logo]()
$84
This Trip.com deal was found by Cheapflights users on 7/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Deal found 7/26![Frontier logo]()
$96
This Trip.com deal was found by Cheapflights users on 7/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Deal found 7/27![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 8/2411:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Deal found 7/26![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 9/231:40 pm
BUF
- MIA
1 stop25h 44m
Frontier
Deal found 7/26![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:13 pm
BUF
- MIA
1 stop29h 09m
Frontier
Deal found 7/28![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 10/231:13 pm
BUF
- MIA
1 stop19h 45m
Frontier
Deal found 7/24![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/1512:28 pm
BUF
- MIA
1 stop8h 01m
Frontier
Deal found 7/25![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 9/281:40 pm
BUF
- MIA
1 stop6h 53m
Frontier
Deal found 7/26![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 7/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:36 am
BUF
- MIA
1 stop11h 29m
Frontier
Deal found 7/23![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 10/211:13 pm
BUF
- MIA
1 stop19h 45m
Frontier
Deal found 7/24![Frontier logo]()
$108
Find 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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $188 (Kiwi.com) |
One-way from | $84 (Trip.com) |
Popular in | March |
Cheapest in | September |
Average price | $327 |
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 2,558,603 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Buffalo to Key Largo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Thu 10/1
3:58 pm-10:33 pm
1 stop6h 35m
Miami
Mon 10/5
3:23 pm-12:12 am
1 stop8h 49m
$277
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Thu 9/3
12:30 pm-8:50 pm
1 stop8h 20m
Miami
Mon 9/7
6:20 am-12:45 pm
1 stop6h 25m
$297
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Thu 11/5
11:00 am-10:00 pm
2 stops11h 00m
Miami
Mon 11/9
6:05 am-2:25 pm
1 stop8h 20m
$309
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Wed 9/9
12:00 pm-8:05 pm
2 stops8h 05m
Miami
Mon 9/14
12:25 pm-9:55 pm
2 stops9h 30m
$319
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Thu 10/1
2:50 pm-11:05 pm
2 stops8h 15m
Miami
Mon 10/5
7:10 am-6:40 pm
2 stops11h 30m
$319
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Tue 9/29
6:30 am-12:13 pm
1 stop5h 43m
Miami
Wed 9/30
1:30 pm-11:50 pm
2 stops10h 20m
$362
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Fri 9/4
4:35 pm-10:10 pm
1 stop5h 35m
Miami
Sun 9/6
7:55 am-7:45 pm
1 stop11h 50m
$370
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Wed 1/20
6:00 am-4:11 pm
2 stops10h 11m
Miami
Wed 1/27
12:00 pm-8:31 pm
1 stop8h 31m
$392
Quickest round-trip
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Sun 11/22
7:20 am-3:20 pm
2 stops8h 00m
Miami
Fri 11/27
6:05 am-12:00 pm
1 stop5h 55m
$426
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Thu 11/26
7:10 am-4:05 pm
2 stops8h 55m
Miami
Wed 12/2
6:50 am-3:10 pm
2 stops8h 20m
$428
Showing 1-10 of 21 resultsSorted by cheapest first
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.
BUF-MIA
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
BUF-KE9
BUF-MIA
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 July 28, 2026.
It’s typically best to fly out from Buffalo to Key Largo in the afternoon. Doing so could potentially save you 45% on the flight price compared to flying in the morning, which is usually more expensive.
How much does it cost to fly round-trip from Buffalo to Key Largo?
Airfare is below average for this route at the moment.
Buffalo to Key Largo flights typically cost between $243 and $338 in August.The cheapest round-trip price found within the last 5 days was $188 on Frontier (Aug 24-Aug 28).
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 July 25, 2026.
Travelers seeking maximum savings on their Buffalo to Key Largo flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 July 28, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andAmerican Airlines from Buffalo to Key Largo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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.
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Alternative routes for Buffalo to Key Largo
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Complete your trip
Complete your trip to Key Largo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Buffalo to Key Largo by cabin class
Find flights from Buffalo to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Buffalo and Key Largo flights
Browse other Buffalo and Key Largo flight options. Last updated on July 28, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Buffalo to Key Largo flights
Consider these flights traveling from Buffalo to Key Largo.
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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$231 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$123 | Average$354 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$158 | Average$354 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$159 | Average$306 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$168 | Average$376 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$297 | FlexibilityNo cancel fee | On-time69% |