$60+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — MIA
may. 30 — jun. 61
Round-trip
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.Cheapflights Tip: The best prices from Buffalo to Key Largo are usually found in September or July, booked 90 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 abril 30, 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 abril 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
mié. 5/202:49 pm
BUF
- MIA
1 stop7h 58m
Frontier
mié. 5/278:10 am
MIA
- BUF
1 stop5h 44m
Frontier
Deal found 4/26![Frontier logo]()
$177
This Expedia deal was found by Cheapflights users on 4/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/247:44 pm
BUF
- MIA
1 stop14h 43m
Frontier
dom. 5/315:05 am
MIA
- BUF
1 stop14h 59m
Frontier
Deal found 4/25![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
mié. 5/272:49 pm
BUF
- MIA
1 stop7h 58m
Frontier
mié. 6/311:23 am
MIA
- BUF
2 stops32h 41m
Frontier
Deal found 4/27![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
lun. 5/412:32 pm
BUF
- MIA
1 stop12h 17m
Frontier
jue. 5/711:23 am
MIA
- BUF
1 stop26h 31m
Frontier
Deal found 4/27![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
mié. 6/172:50 pm
BUF
- MIA
1 stop8h 13m
Frontier
mié. 6/243:20 pm
MIA
- BUF
1 stop28h 57m
Frontier
Deal found 4/26![Frontier logo]()
$186
This eDestinos deal was found by Cheapflights users on 4/26. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/112:49 pm
BUF
- MIA
1 stop25h 38m
Frontier
vie. 5/155:22 pm
MIA
- BUF
1 stop18h 11m
Frontier
Deal found 4/26![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
mar. 5/2611:36 am
BUF
- MIA
1 stop25h 44m
Multiple Airlines
mar. 6/24:03 pm
MIA
- BUF
2 stops21h 51m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
sáb. 5/1612:41 pm
BUF
- MIA
1 stop10h 06m
Multiple Airlines
sáb. 5/309:39 am
MIA
- BUF
2 stops25h 02m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
mié. 6/107:57 pm
BUF
- MIA
2 stops27h 06m
Frontier
mié. 6/175:26 pm
MIA
- BUF
1 stop17h 14m
Frontier
Deal found 4/28![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
dom. 5/2411:36 am
BUF
- MIA
1 stop5h 34m
Multiple Airlines
dom. 5/315:05 am
MIA
- BUF
2 stops32h 49m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
mar. 6/1611:50 am
BUF
- MIA
1 stop11h 13m
Frontier
vie. 7/108:30 am
MIA
- BUF
1 stop27h 03m
Frontier
Deal found 4/28![Frontier logo]()
$197
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 abril 30, 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 abril 30, 2026.
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/237:19 pm
BUF
- MIA
1 stop5h 36m
Delta
jue. 7/307:02 am
MIA
- BUF
1 stop8h 05m
Delta
Deal found 4/30![Delta logo]()
$241
This Southwest deal was found by Cheapflights users on 4/25. 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.
dom. 8/239:40 am
BUF
- MIA
2 stops13h 10m
Southwest
sáb. 8/297:45 am
MIA
- BUF
2 stops9h 50m
Southwest
Deal found 4/25![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 4/26. 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.
mié. 5/2710:34 am
BUF
- MIA
1 stop5h 42m
United Airlines
mié. 6/38:48 am
MIA
- BUF
2 stops10h 15m
United Airlines
Deal found 4/26![United Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 4/27. 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.
lun. 7/612:04 pm
BUF
- MIA
1 stop6h 00m
Delta
sáb. 7/117:02 am
MIA
- BUF
1 stop8h 05m
Delta
Deal found 4/27![Delta logo]()
$278
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/27:40 pm
BUF
- MIA
1 stop5h 14m
Delta
dom. 10/47:30 am
MIA
- BUF
1 stop6h 16m
Delta
Deal found 4/28![Delta logo]()
$338
This Southwest deal was found by Cheapflights users on 4/27. 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.
dom. 9/131:05 pm
BUF
- MIA
1 stop4h 55m
Southwest
dom. 9/206:45 am
MIA
- BUF
2 stops10h 20m
Southwest
Deal found 4/27![Southwest logo]()
$379
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/287:40 pm
BUF
- MIA
1 stop5h 14m
Delta
vie. 9/46:00 am
MIA
- BUF
1 stop5h 15m
Delta
Deal found 4/28![Delta logo]()
$338
This Southwest deal was found by Cheapflights users on 4/26. 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.
vie. 8/1412:30 pm
BUF
- MIA
2 stops9h 35m
Southwest
mar. 8/187:10 am
MIA
- BUF
2 stops10h 35m
Southwest
Deal found 4/26![Southwest logo]()
$409
This Delta deal was found by Cheapflights users on 4/27. 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.
vie. 9/182:30 pm
BUF
- MIA
1 stop8h 23m
Delta
sáb. 9/266:00 am
MIA
- BUF
1 stop5h 15m
Delta
Deal found 4/27![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 4/30. 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.
dom. 10/185:00 am
BUF
- MIA
1 stop6h 50m
Southwest
vie. 10/237:00 am
MIA
- BUF
2 stops8h 20m
Southwest
Deal found 4/30![Southwest logo]()
$424
This Delta deal was found by Cheapflights users on 4/27. 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.
jue. 5/1410:32 am
BUF
- MIA
1 stop8h 22m
Delta
sáb. 5/166:00 am
MIA
- BUF
1 stop5h 23m
Delta
Deal found 4/27![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/2412:50 pm
BUF
- MIA
2 stops8h 35m
Southwest
mar. 5/267:00 am
MIA
- BUF
2 stops8h 20m
Southwest
Deal found 4/29![Southwest logo]()
$426
Last-minute flights from Buffalo to Key LargoDiscover last-minute flight deals from Buffalo to Key Largo. Data last updated abril 30, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Key Largo. Data last updated abril 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
lun. 5/412:32 pm
BUF
- MIA
1 stop12h 17m
Frontier
jue. 5/711:23 am
MIA
- BUF
1 stop26h 31m
Frontier
Deal found 4/27![Frontier logo]()
$185
This eDestinos deal was found by Cheapflights users on 4/26. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/112:49 pm
BUF
- MIA
1 stop25h 38m
Frontier
vie. 5/155:22 pm
MIA
- BUF
1 stop18h 11m
Frontier
Deal found 4/26![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
sáb. 5/1612:41 pm
BUF
- MIA
1 stop10h 06m
Multiple Airlines
sáb. 5/309:39 am
MIA
- BUF
2 stops25h 02m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
mar. 5/1911:36 am
BUF
- MIA
1 stop28h 51m
Frontier
lun. 5/258:10 am
MIA
- BUF
1 stop26h 31m
Frontier
Deal found 4/27![Frontier logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
mié. 5/202:49 pm
BUF
- MIA
1 stop7h 58m
Frontier
mié. 5/278:10 am
MIA
- BUF
1 stop5h 44m
Frontier
Deal found 4/26![Frontier logo]()
$177
This Expedia deal was found by Cheapflights users on 4/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/247:44 pm
BUF
- MIA
1 stop14h 43m
Frontier
dom. 5/315:05 am
MIA
- BUF
1 stop14h 59m
Frontier
Deal found 4/25![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
dom. 5/2411:36 am
BUF
- MIA
1 stop5h 34m
Multiple Airlines
dom. 5/315:05 am
MIA
- BUF
2 stops32h 49m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
dom. 5/2411:36 am
BUF
- MIA
1 stop5h 34m
Multiple Airlines
jue. 6/45:05 am
MIA
- BUF
1 stop14h 59m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
mar. 5/2611:36 am
BUF
- MIA
1 stop25h 44m
Multiple Airlines
mar. 6/24:03 pm
MIA
- BUF
2 stops21h 51m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
mié. 5/272:49 pm
BUF
- MIA
1 stop7h 58m
Frontier
mié. 6/311:23 am
MIA
- BUF
2 stops32h 41m
Frontier
Deal found 4/27![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
sáb. 5/3012:41 pm
BUF
- MIA
1 stop10h 06m
Frontier
jue. 6/45:05 am
MIA
- BUF
1 stop14h 59m
Frontier
Deal found 4/27![Frontier logo]()
$200
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 abril 30, 2026.
Search for one-way flight options from Buffalo to Key Largo. Find affordable one-way fares based on user searches. Data last updated abril 30, 2026.
This Trip.com deal was found by Cheapflights users on 4/27. 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.
mié. 5/272:49 pm
BUF
- MIA
1 stop7h 58m
Frontier
Deal found 4/27![Frontier logo]()
$60
This Trip.com deal was found by Cheapflights users on 4/27. 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.
mar. 5/2611:36 am
BUF
- MIA
1 stop11h 11m
Frontier
Deal found 4/27![Frontier logo]()
$61
This Trip.com deal was found by Cheapflights users on 4/28. 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.
mié. 5/132:49 pm
BUF
- MIA
1 stop7h 58m
Frontier
Deal found 4/28![Frontier logo]()
$72
This WAYA deal was found by Cheapflights users on 4/26. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/112:49 pm
BUF
- MIA
1 stop7h 58m
Frontier
Deal found 4/26![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
mar. 5/1211:36 am
BUF
- MIA
1 stop28h 51m
Frontier
Deal found 4/28![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
sáb. 5/2312:41 pm
BUF
- MIA
1 stop10h 06m
Frontier
Deal found 4/26![Frontier logo]()
$82
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/247:44 pm
BUF
- MIA
1 stop14h 43m
Frontier
Deal found 4/30![Frontier logo]()
$86
This WAYA deal was found by Cheapflights users on 4/26. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/2411:36 am
BUF
- MIA
1 stop5h 34m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$87
This Trip.com deal was found by Cheapflights users on 4/26. 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.
vie. 5/82:49 pm
BUF
- MIA
1 stop25h 38m
Frontier
Deal found 4/26![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/2811:50 am
BUF
- MIA
1 stop11h 15m
Frontier
Deal found 4/29![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
sáb. 5/912:41 pm
BUF
- MIA
1 stop10h 06m
Frontier
Deal found 4/27![Frontier logo]()
$94
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 abril 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $177 (Kiwi.com) |
One-way from | $60 (Trip.com) |
Popular in | March |
Cheapest in | September |
Average price | $316 |
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 abril 30, 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
jue. 7/23
7:19 pm-12:55 am
1 stop5h 36m
Miami
jue. 7/30
7:02 am-3:07 pm
1 stop8h 05m
$241
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
lun. 7/6
12:04 pm-6:04 pm
1 stop6h 00m
Miami
sáb. 7/11
7:02 am-3:07 pm
1 stop8h 05m
$278
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
vie. 10/2
7:40 pm-12:54 am
1 stop5h 14m
Miami
dom. 10/4
7:30 am-1:46 pm
1 stop6h 16m
$338
Quickest round-trip
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
vie. 8/28
7:40 pm-12:54 am
1 stop5h 14m
Miami
vie. 9/4
6:00 am-11:15 am
1 stop5h 15m
$338
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
dom. 8/23
9:40 am-10:50 pm
2 stops13h 10m
Miami
sáb. 8/29
7:45 am-5:35 pm
2 stops9h 50m
$354
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
vie. 9/18
2:30 pm-10:53 pm
1 stop8h 23m
Miami
sáb. 9/26
6:00 am-11:15 am
1 stop5h 15m
$359
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
jue. 5/14
10:32 am-6:54 pm
1 stop8h 22m
Miami
sáb. 5/16
6:00 am-11:23 am
1 stop5h 23m
$373
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
dom. 9/13
1:05 pm-6:00 pm
1 stop4h 55m
Miami
dom. 9/20
6:45 am-5:05 pm
2 stops10h 20m
$379
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
vie. 8/14
12:30 pm-10:05 pm
2 stops9h 35m
Miami
mar. 8/18
7:10 am-5:45 pm
2 stops10h 35m
$409
BuffaloMiami
BUF - MIA
BUFMIA
Buffalo
mié. 5/27
10:34 am-4:16 pm
1 stop5h 42m
Miami
mié. 6/3
8:48 am-7:03 pm
2 stops10h 15m
$413
Showing 1-10 of 23 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 abril 30, 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.
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 April 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. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost to fly round-trip from Buffalo to Key Largo?
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 abril 30, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andJetBlue 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.
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Buffalo
Popular flights
Top destinations
Alternative routes for Buffalo to Key Largo
See prices for flight routes from nearby airports that may be better suited for you.
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 abril 30, 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 abril 30, 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 abril 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$244 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$322 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$150 | Average$303 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$156 | Average$317 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$158 | Average$356 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$187 | Average$290 | FlexibilityNo cancel fee | On-time69% |