$99+ Cheap flights from Harrisburg (MDT) 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — MIA
Aug 8 — Aug 151
Round-trip
1 adult, Economy
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Find cheap flights from Harrisburg 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
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Cheapest flights from Harrisburg to Key LargoExplore the most affordable flight options available from Harrisburg to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
Explore the most affordable flight options available from Harrisburg to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
This American Airlines deal was found by Cheapflights users on 7/7. 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 9/96:42 am
MDT
- MIA
1 stop4h 39m
American Airlines
Sat 9/126:40 am
MIA
- MDT
1 stop7h 30m
American Airlines
Deal found 7/7![American Airlines logo]()
$197
This American Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:45 pm
MDT
- MIA
1 stop7h 07m
American Airlines
Mon 8/177:45 am
MIA
- MDT
1 stop4h 33m
American Airlines
Deal found 7/8![American Airlines logo]()
$258
This American Airlines deal was found by Cheapflights users on 7/8. 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 8/12:25 pm
MDT
- MIA
1 stop7h 13m
American Airlines
Sat 8/86:00 am
MIA
- MDT
1 stop7h 58m
American Airlines
Deal found 7/8![American Airlines logo]()
$262
This American Airlines deal was found by Cheapflights users on 7/8. 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 8/282:45 pm
MDT
- MIA
1 stop5h 28m
American Airlines
Sat 9/56:00 am
MIA
- MDT
1 stop5h 10m
American Airlines
Deal found 7/8![American Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 7/6. 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 8/273:03 pm
MDT
- MIA
1 stop7h 48m
Delta
Sat 9/57:00 am
MIA
- MDT
1 stop4h 49m
Delta
Deal found 7/6![Delta logo]()
$312
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:15 am
MDT
- MIA
1 stop4h 56m
United Airlines
Wed 8/2612:17 pm
MIA
- MDT
1 stop8h 36m
United Airlines
Deal found 7/5![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/4. 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 8/186:00 am
MDT
- MIA
1 stop7h 11m
American Airlines
Tue 8/257:15 am
MIA
- MDT
1 stop6h 43m
American Airlines
Deal found 7/4![American Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 7/7. 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 10/176:25 pm
MDT
- MIA
1 stop6h 28m
Delta
Mon 10/268:00 am
MIA
- MDT
1 stop8h 12m
Delta
Deal found 7/7![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 7/7. 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 7/146:30 am
MDT
- MIA
1 stop8h 27m
United Airlines
Tue 7/2112:30 pm
MIA
- MDT
1 stop8h 59m
United Airlines
Deal found 7/7![United Airlines logo]()
$332
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:38 pm
MDT
- MIA
1 stop5h 14m
American Airlines
Mon 8/34:45 pm
MIA
- MDT
1 stop6h 25m
American Airlines
Deal found 7/6![American Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:40 am
MDT
- MIA
1 stop5h 47m
American Airlines
Tue 11/245:37 pm
MIA
- MDT
1 stop6h 41m
American Airlines
Deal found 7/6![American Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 7/7. 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 9/66:00 am
MDT
- MIA
1 stop7h 02m
Delta
Thu 9/106:26 pm
MIA
- MDT
1 stop5h 14m
Delta
Deal found 7/7![Delta logo]()
$348
Best flights from Harrisburg to Key LargoDiscover carefully curated flight deals from Harrisburg to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
Discover carefully curated flight deals from Harrisburg to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
This Delta deal was found by Cheapflights users on 7/7. 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 9/66:00 am
MDT
- MIA
1 stop7h 02m
Delta
Sat 9/126:00 am
MIA
- MDT
1 stop5h 44m
Delta
Deal found 7/7![Delta logo]()
$312
This United Airlines deal was found by Cheapflights users on 7/7. 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 7/216:30 am
MDT
- MIA
1 stop8h 27m
United Airlines
Fri 7/2412:30 pm
MIA
- MDT
1 stop7h 18m
United Airlines
Deal found 7/7![United Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 7/8. 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 8/56:15 am
MDT
- MIA
1 stop5h 20m
United Airlines
Wed 8/1212:17 pm
MIA
- MDT
1 stop8h 36m
United Airlines
Deal found 7/8![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/8. 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 7/126:15 am
MDT
- MIA
1 stop5h 20m
United Airlines
Sun 7/1912:30 pm
MIA
- MDT
1 stop8h 59m
United Airlines
Deal found 7/8![United Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/42:11 pm
MDT
- MIA
1 stop8h 16m
United Airlines
Mon 8/1012:30 pm
MIA
- MDT
1 stop8h 59m
United Airlines
Deal found 7/4![United Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Mon 7/206:30 am
MDT
- MIA
1 stop8h 27m
United Airlines
Fri 7/2412:30 pm
MIA
- MDT
1 stop8h 59m
United Airlines
Deal found 7/5![United Airlines logo]()
$563
This United Airlines deal was found by Cheapflights users on 7/5. 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 8/26:15 am
MDT
- MIA
1 stop5h 20m
United Airlines
Thu 8/612:30 pm
MIA
- MDT
1 stop8h 59m
United Airlines
Deal found 7/5![United Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 7/8. 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 7/192:11 pm
MDT
- MIA
1 stop8h 16m
United Airlines
Fri 7/2412:30 pm
MIA
- MDT
1 stop8h 59m
United Airlines
Deal found 7/8![United Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 7/6. 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 9/166:30 am
MDT
- MIA
1 stop8h 24m
United Airlines
Sun 9/207:00 am
MIA
- MDT
2 stops9h 52m
United Airlines
Deal found 7/6![United Airlines logo]()
$693
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Mon 8/32:11 pm
MDT
- MIA
1 stop8h 16m
United Airlines
Fri 8/78:48 am
MIA
- MDT
2 stops9h 56m
United Airlines
Deal found 7/6![United Airlines logo]()
$694
This United Airlines deal was found by Cheapflights users on 7/8. 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.
Sat 8/226:30 am
MDT
- MIA
1 stop8h 24m
United Airlines
Mon 8/2412:17 pm
MIA
- MDT
2 stops11h 13m
United Airlines
Deal found 7/8![United Airlines logo]()
$740
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Mon 8/176:30 am
MDT
- MIA
1 stop8h 24m
United Airlines
Wed 8/197:00 am
MIA
- MDT
2 stops9h 52m
United Airlines
Deal found 7/6![United Airlines logo]()
$749
Last-minute flights from Harrisburg to Key LargoDiscover last-minute flight deals from Harrisburg to Key Largo. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Harrisburg to Key Largo. Data last updated July 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/7. 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 7/146:30 am
MDT
- MIA
1 stop8h 27m
United Airlines
Tue 7/2112:30 pm
MIA
- MDT
1 stop8h 59m
United Airlines
Deal found 7/7![United Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 7/7. 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 7/216:30 am
MDT
- MIA
1 stop8h 27m
United Airlines
Fri 7/2412:30 pm
MIA
- MDT
1 stop7h 18m
United Airlines
Deal found 7/7![United Airlines logo]()
$327
This American Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:38 pm
MDT
- MIA
1 stop5h 14m
American Airlines
Mon 7/273:00 pm
MIA
- MDT
1 stop8h 10m
American Airlines
Deal found 7/8![American Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:38 pm
MDT
- MIA
1 stop5h 14m
American Airlines
Mon 8/34:45 pm
MIA
- MDT
1 stop6h 25m
American Airlines
Deal found 7/6![American Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 7/7. 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.
Fri 7/316:22 pm
MDT
- MIA
1 stop6h 33m
Delta
Sat 8/86:00 am
MIA
- MDT
1 stop5h 49m
Delta
Deal found 7/7![Delta logo]()
$362
This American Airlines deal was found by Cheapflights users on 7/8. 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 8/12:25 pm
MDT
- MIA
1 stop7h 13m
American Airlines
Sat 8/86:00 am
MIA
- MDT
1 stop7h 58m
American Airlines
Deal found 7/8![American Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 7/8. 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 8/56:00 am
MDT
- MIA
1 stop7h 00m
Delta
Wed 8/126:00 am
MIA
- MDT
1 stop5h 08m
Delta
Deal found 7/8![Delta logo]()
$197
This American Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:45 pm
MDT
- MIA
1 stop7h 07m
American Airlines
Mon 8/177:45 am
MIA
- MDT
1 stop4h 33m
American Airlines
Deal found 7/8![American Airlines logo]()
$258
This American Airlines deal was found by Cheapflights users on 7/4. 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 8/186:00 am
MDT
- MIA
1 stop7h 11m
American Airlines
Tue 8/257:15 am
MIA
- MDT
1 stop6h 43m
American Airlines
Deal found 7/4![American Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:15 am
MDT
- MIA
1 stop4h 56m
United Airlines
Wed 8/2612:17 pm
MIA
- MDT
1 stop8h 36m
United Airlines
Deal found 7/5![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 7/6. 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 8/273:03 pm
MDT
- MIA
1 stop7h 48m
Delta
Sat 9/57:00 am
MIA
- MDT
1 stop4h 49m
Delta
Deal found 7/6![Delta logo]()
$312
This American Airlines deal was found by Cheapflights users on 7/8. 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 8/282:45 pm
MDT
- MIA
1 stop5h 28m
American Airlines
Sat 9/56:00 am
MIA
- MDT
1 stop5h 10m
American Airlines
Deal found 7/8![American Airlines logo]()
$287
One-way flights from Harrisburg to Key LargoSearch for one-way flight options from Harrisburg to Key Largo. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
Search for one-way flight options from Harrisburg to Key Largo. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This Delta deal was found by Cheapflights users on 7/8. 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 9/56:24 pm
MDT
- MIA
1 stop6h 23m
Delta
Deal found 7/8![Delta logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/105:52 pm
MDT
- MIA
2 stops44h 01m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 8/25:58 pm
MDT
- MIA
2 stops22h 35m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 8/75:52 pm
MDT
- MIA
2 stops30h 06m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 7/305:58 pm
MDT
- MIA
2 stops29h 07m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$147
This Delta deal was found by Cheapflights users on 7/9. 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 9/66:24 pm
MDT
- MIA
1 stop6h 23m
Delta
Deal found 7/9![Delta logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 8/65:58 pm
MDT
- MIA
2 stops29h 08m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 7/315:42 pm
MDT
- MIA
2 stops44h 11m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$158
Find flight deals from Harrisburg to Key Largo
Keep the following information in mind while searching for Harrisburg to Key Largo flight deals. Data was last updated July 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (American Airlines) |
One-way from | $99 (Delta) |
Popular in | December |
Cheapest in | September |
Average price | $345 |
Cheapflights Fare Finder
Customize your flight search to find flights from Harrisburg 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 9, 2026.
Use the filters below to find and compare flights from Harrisburg to Key Largo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Sun 9/6
6:00 am-1:02 pm
1 stop7h 02m
Miami
Sat 9/12
6:00 am-11:44 am
1 stop5h 44m
$312
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Tue 7/21
6:30 am-2:57 pm
1 stop8h 27m
Miami
Fri 7/24
12:30 pm-7:48 pm
1 stop7h 18m
$327
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Wed 8/5
6:15 am-11:35 am
1 stop5h 20m
Miami
Wed 8/12
12:17 pm-8:53 pm
1 stop8h 36m
$409
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Sun 7/12
6:15 am-11:35 am
1 stop5h 20m
Miami
Sun 7/19
12:30 pm-9:29 pm
1 stop8h 59m
$438
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Tue 8/4
2:11 pm-10:27 pm
1 stop8h 16m
Miami
Mon 8/10
12:30 pm-9:29 pm
1 stop8h 59m
$494
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Mon 7/20
6:30 am-2:57 pm
1 stop8h 27m
Miami
Fri 7/24
12:30 pm-9:29 pm
1 stop8h 59m
$563
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Sun 8/2
6:15 am-11:35 am
1 stop5h 20m
Miami
Thu 8/6
12:30 pm-9:29 pm
1 stop8h 59m
$579
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Sun 7/19
2:11 pm-10:27 pm
1 stop8h 16m
Miami
Fri 7/24
12:30 pm-9:29 pm
1 stop8h 59m
$687
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Wed 9/16
6:30 am-2:54 pm
1 stop8h 24m
Miami
Sun 9/20
7:00 am-4:52 pm
2 stops9h 52m
$693
HarrisburgMiami
MDT - MIA
MDTMIA
Harrisburg
Mon 8/3
2:11 pm-10:27 pm
1 stop8h 16m
Miami
Fri 8/7
8:48 am-6:44 pm
2 stops9h 56m
$694
Showing 1-10 of 23 resultsSorted by cheapest first
Best time to book a flight from Harrisburg to Key Largo
Have a flexible travel schedule? Discover the best time to fly to Key Largo from Harrisburg with our price prediction graph.
MDT-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 Harrisburg to Key Largo
MDT-KE9
MDT-MIA
How much does it cost to fly round-trip from Harrisburg 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 July 9, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Harrisburg to Key Largo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Related info for your journey
Find useful and relevant information for your journey from Harrisburg 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 Harrisburg 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 Harrisburg to Key Largo by cabin class
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Harrisburg and Key Largo flights
Browse other Harrisburg and Key Largo flight options. Last updated on July 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Harrisburg to Key Largo flights
Consider these flights traveling from Harrisburg to Key Largo.
Top 4 airlines flying from Harrisburg to Key Largo
Discover the top 4 airlines that operate flights from Harrisburg 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$164 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$143 | Average$366 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$357 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$258 | Average$426 | FlexibilityNo cancel fee | On-time71% |