$93+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — MIA
Jul 18 — Jul 251
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 Tuesday or Wednesday 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 June 18, 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 June 18, 2026.
This American Airlines deal was found by Cheapflights users on 6/18. 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.
Sat 7/45:20 pm
BUF
- MIA
1 stop5h 49m
American Airlines
Tue 7/74:45 pm
MIA
- BUF
1 stop7h 08m
American Airlines
Deal found 6/18![American Airlines logo]()
$186
This Southwest deal was found by Cheapflights users on 6/16. 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 9/135:45 pm
BUF
- MIA
1 stop5h 05m
Southwest
Thu 9/174:50 pm
MIA
- BUF
1 stop5h 50m
Southwest
Deal found 6/16![Southwest logo]()
$187
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Mon 6/157:40 pm
BUF
- MIA
1 stop5h 09m
American Airlines
Tue 6/1612:30 pm
MIA
- BUF
1 stop8h 32m
American Airlines
Deal found 6/14![American Airlines logo]()
$191
This Southwest deal was found by Cheapflights users on 6/18. 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.
Sat 10/1012:20 pm
BUF
- MIA
1 stop9h 50m
Southwest
Sat 10/176:40 am
MIA
- BUF
1 stop7h 30m
Southwest
Deal found 6/18![Southwest logo]()
$192
This Southwest deal was found by Cheapflights users on 6/17. 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 6/252:50 pm
BUF
- MIA
1 stop8h 25m
Southwest
Mon 6/295:25 am
MIA
- BUF
2 stops8h 50m
Southwest
Deal found 6/17![Southwest logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/172:48 pm
BUF
- MIA
1 stop8h 17m
Frontier
Fri 7/245:28 pm
MIA
- BUF
1 stop18h 05m
Frontier
Deal found 6/17![Frontier logo]()
$202
This Southwest deal was found by Cheapflights users on 6/15. 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 9/279:40 am
BUF
- MIA
2 stops13h 10m
Southwest
Sun 10/45:55 am
MIA
- BUF
2 stops8h 15m
Southwest
Deal found 6/15![Southwest logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 6/17![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 6/17![Frontier logo]()
$206
This Southwest deal was found by Cheapflights users on 6/13. 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 9/135:45 pm
BUF
- MIA
1 stop5h 05m
Southwest
Fri 9/187:15 am
MIA
- BUF
1 stop8h 00m
Southwest
Deal found 6/13![Southwest logo]()
$207
This Frontier deal was found by Cheapflights users on 6/17. 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.
Tue 9/291:16 pm
BUF
- MIA
1 stop7h 48m
Frontier
Wed 9/306:45 am
MIA
- BUF
1 stop5h 36m
Frontier
Deal found 6/17![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 June 18, 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 June 18, 2026.
This Southwest deal was found by Cheapflights users on 6/16. 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 7/14:20 pm
BUF
- MIA
1 stop5h 50m
Southwest
Sat 7/46:50 am
MIA
- BUF
1 stop4h 50m
Southwest
Deal found 6/16![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 6/13. 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.
Sun 10/116:16 am
BUF
- MIA
1 stop8h 18m
Delta
Thu 10/158:05 am
MIA
- BUF
1 stop7h 22m
Delta
Deal found 6/13![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Sun 12/67:00 am
BUF
- MIA
1 stop7h 55m
United Airlines
Thu 12/101:00 pm
MIA
- BUF
2 stops9h 37m
United Airlines
Deal found 6/15![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 6/14. 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 9/136:45 am
BUF
- MIA
1 stop4h 45m
Southwest
Mon 9/147:00 am
MIA
- BUF
1 stop4h 50m
Southwest
Deal found 6/14![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 6/18. 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 8/277:19 pm
BUF
- MIA
1 stop5h 48m
Delta
Fri 9/43:59 pm
MIA
- BUF
1 stop8h 00m
Delta
Deal found 6/18![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 6/13. 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 9/135:45 pm
BUF
- MIA
1 stop5h 05m
Southwest
Fri 9/187:15 am
MIA
- BUF
1 stop8h 00m
Southwest
Deal found 6/13![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 6/16. 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.
Sat 12/59:55 am
BUF
- MIA
1 stop6h 38m
Delta
Sat 12/127:30 am
MIA
- BUF
1 stop7h 29m
Delta
Deal found 6/16![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 6/18. 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.
Sat 10/103:45 pm
BUF
- MIA
2 stops6h 25m
Southwest
Sat 10/176:40 am
MIA
- BUF
1 stop5h 00m
Southwest
Deal found 6/18![Southwest logo]()
$288
This Southwest deal was found by Cheapflights users on 6/13. 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 7/112:50 pm
BUF
- MIA
2 stops9h 00m
Southwest
Wed 7/151:45 pm
MIA
- BUF
1 stop6h 15m
Southwest
Deal found 6/13![Southwest logo]()
$307
This Southwest deal was found by Cheapflights users on 6/14. 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 8/74:35 pm
BUF
- MIA
1 stop5h 30m
Southwest
Mon 8/106:20 am
MIA
- BUF
1 stop4h 50m
Southwest
Deal found 6/14![Southwest logo]()
$313
This Southwest deal was found by Cheapflights users on 6/14. 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 10/95:05 am
BUF
- MIA
2 stops9h 25m
Southwest
Sun 10/116:45 am
MIA
- BUF
1 stop7h 25m
Southwest
Deal found 6/14![Southwest logo]()
$317
Last-minute flights from Buffalo to Key LargoDiscover last-minute flight deals from Buffalo to Key Largo. Data last updated June 18, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Key Largo. Data last updated June 18, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 6/225:25 am
BUF
- MIA
1 stop7h 30m
American Airlines
Mon 6/294:50 pm
MIA
- BUF
1 stop7h 04m
American Airlines
Deal found 6/17![American Airlines logo]()
$228
This Southwest deal was found by Cheapflights users on 6/17. 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 6/252:50 pm
BUF
- MIA
1 stop8h 25m
Southwest
Mon 6/295:25 am
MIA
- BUF
2 stops8h 50m
Southwest
Deal found 6/17![Southwest logo]()
$198
This American Airlines deal was found by Cheapflights users on 6/15. 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.
Sat 6/275:25 am
BUF
- MIA
1 stop7h 30m
American Airlines
Tue 6/307:17 pm
MIA
- BUF
1 stop4h 39m
American Airlines
Deal found 6/15![American Airlines logo]()
$223
This American Airlines deal was found by Cheapflights users on 6/17. 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.
Fri 7/37:35 pm
BUF
- MIA
1 stop5h 11m
American Airlines
Tue 7/75:23 pm
MIA
- BUF
1 stop5h 28m
American Airlines
Deal found 6/17![American Airlines logo]()
$187
This American Airlines deal was found by Cheapflights users on 6/18. 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.
Sat 7/45:20 pm
BUF
- MIA
1 stop5h 49m
American Airlines
Tue 7/74:45 pm
MIA
- BUF
1 stop7h 08m
American Airlines
Deal found 6/18![American Airlines logo]()
$186
This American Airlines deal was found by Cheapflights users on 6/18. 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.
Sat 7/410:33 am
BUF
- MIA
1 stop8h 25m
American Airlines
Sat 7/1112:42 pm
MIA
- BUF
1 stop8h 22m
American Airlines
Deal found 6/18![American Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 7/172:48 pm
BUF
- MIA
1 stop8h 17m
Frontier
Fri 7/245:28 pm
MIA
- BUF
1 stop18h 05m
Frontier
Deal found 6/17![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 7/272:48 pm
BUF
- MIA
1 stop8h 17m
Frontier
Sun 8/28:30 am
MIA
- BUF
1 stop29h 23m
Frontier
Deal found 6/14![Frontier logo]()
$230
This Delta deal was found by Cheapflights users on 6/15. 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 7/296:05 am
BUF
- MIA
1 stop8h 19m
Delta
Thu 8/63:29 pm
MIA
- BUF
1 stop8h 00m
Delta
Deal found 6/15![Delta logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/292:48 pm
BUF
- MIA
1 stop8h 17m
Frontier
Mon 8/38:30 am
MIA
- BUF
1 stop25h 59m
Frontier
Deal found 6/15![Frontier logo]()
$226
This Southwest deal was found by Cheapflights users on 6/16. 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 7/3112:40 pm
BUF
- MIA
1 stop9h 30m
Southwest
Wed 8/54:45 pm
MIA
- BUF
1 stop4h 55m
Southwest
Deal found 6/16![Southwest logo]()
$192
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 June 18, 2026.
Search for one-way flight options from Buffalo to Key Largo. Find affordable one-way fares based on user searches. Data last updated June 18, 2026.
This American Airlines deal was found by Cheapflights users on 6/17. 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.
Sat 7/410:44 am
BUF
- MIA
1 stop6h 43m
American Airlines
Deal found 6/17![American Airlines logo]()
$93
This American Airlines deal was found by Cheapflights users on 6/18. 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 8/186:50 am
BUF
- MIA
1 stop6h 21m
American Airlines
Deal found 6/18![American Airlines logo]()
$94
This American Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 7/156:00 am
BUF
- MIA
1 stop8h 11m
American Airlines
Deal found 6/13![American Airlines logo]()
$95
This Southwest deal was found by Cheapflights users on 6/16. 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.
Sat 7/48:45 am
BUF
- MIA
2 stops10h 35m
Southwest
Deal found 6/16![Southwest logo]()
$99
This Frontier deal was found by Cheapflights users on 6/16. 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.
Tue 8/1111:29 am
BUF
- MIA
1 stop6h 18m
Frontier
Deal found 6/16![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/132:48 pm
BUF
- MIA
1 stop25h 45m
Frontier
Deal found 6/18![Frontier logo]()
$106
This Delta deal was found by Cheapflights users on 6/18. 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.
Mon 9/146:05 am
BUF
- MIA
1 stop6h 53m
Delta
Deal found 6/18![Delta logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Thu 7/1611:29 am
BUF
- MIA
1 stop11h 36m
Frontier
Deal found 6/17![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 stop11h 30m
Frontier
Deal found 6/16![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 8/172:48 pm
BUF
- MIA
1 stop25h 33m
Frontier
Deal found 6/16![Frontier logo]()
$112
This Delta deal was found by Cheapflights users on 6/16. 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 7/156:05 am
BUF
- MIA
1 stop8h 19m
Delta
Deal found 6/16![Delta logo]()
$114
This Frontier deal was found by Cheapflights users on 6/14. 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 7/292:48 pm
BUF
- MIA
1 stop8h 17m
Frontier
Deal found 6/14![Frontier logo]()
$115
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 June 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $186 (American Airlines) |
One-way from | $93 (American Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $297 |
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 June 18, 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
Wed 7/1
4:20 pm-10:10 pm
1 stop5h 50m
Miami
Sat 7/4
6:50 am-11:40 am
1 stop4h 50m
$187
Quickest round-trip
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Sun 9/13
6:45 am-11:30 am
1 stop4h 45m
Miami
Mon 9/14
7:00 am-11:50 am
1 stop4h 50m
$187
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Sun 9/13
5:45 pm-10:50 pm
1 stop5h 05m
Miami
Fri 9/18
7:15 am-3:15 pm
1 stop8h 00m
$207
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Sun 10/11
6:16 am-2:34 pm
1 stop8h 18m
Miami
Thu 10/15
8:05 am-3:27 pm
1 stop7h 22m
$217
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Thu 8/27
7:19 pm-1:07 am
1 stop5h 48m
Miami
Fri 9/4
3:59 pm-11:59 pm
1 stop8h 00m
$217
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Sat 12/5
9:55 am-4:33 pm
1 stop6h 38m
Miami
Sat 12/12
7:30 am-2:59 pm
1 stop7h 29m
$227
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Sat 10/10
3:45 pm-10:10 pm
2 stops6h 25m
Miami
Sat 10/17
6:40 am-11:40 am
1 stop5h 00m
$288
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Sun 12/6
7:00 am-2:55 pm
1 stop7h 55m
Miami
Thu 12/10
1:00 pm-10:37 pm
2 stops9h 37m
$299
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Wed 7/1
12:50 pm-9:50 pm
2 stops9h 00m
Miami
Wed 7/15
1:45 pm-8:00 pm
1 stop6h 15m
$307
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
Fri 8/7
4:35 pm-10:05 pm
1 stop5h 30m
Miami
Mon 8/10
6:20 am-11:10 am
1 stop4h 50m
$313
Showing 1-10 of 22 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 June 18, 2026.
It’s typically best to fly out from Buffalo to Key Largo in the afternoon. Doing so could potentially save you 48% 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?
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 June 13, 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 June 18, 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.
Entertainment
7.5
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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 June 18, 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 June 18, 2026.
Popular flight searches
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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 June 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$233 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$151 | Average$303 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$156 | Average$328 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$163 | Average$373 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$187 | Average$297 | FlexibilityNo cancel fee | On-time69% |