$53+ Cheap flights from Baltimore (BWI) 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — MIA
May 3 — May 101
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore 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 Baltimore/Washington to Key Largo are usually found in September or July, booked 17 days in advance, depart on a Monday or Saturday and return on a Friday
Cheap flight deals from Baltimore to Key Largo
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Best
Last-minute
One-way
Cheapest flights from Baltimore to Key LargoExplore the most affordable flight options available from Baltimore to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2026.
Explore the most affordable flight options available from Baltimore to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:30 am
BWI
- MIA
Nonstop2h 48m
Frontier
Mon 5/118:00 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 4/2![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:52 am
BWI
- MIA
1 stop7h 35m
Frontier
Wed 6/103:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 4/1![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:49 pm
BWI
- MIA
1 stop28h 42m
Multiple Airlines
Sat 5/28:00 am
MIA
- BWI
Nonstop2h 51m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$107
This Super.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:53 pm
BWI
- MIA
1 stop6h 56m
Frontier
Thu 4/305:25 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 4/1![Frontier logo]()
$108
This Frontier deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Sun 5/36:00 am
MIA
- BWI
1 stop4h 49m
Frontier
Deal found 4/1![Frontier logo]()
$109
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:49 pm
BWI
- MIA
Nonstop2h 49m
Frontier
Fri 4/175:30 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 3/31![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Thu 7/93:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 3/31![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Fri 6/53:45 pm
MIA
- BWI
Nonstop2h 47m
Frontier
Deal found 3/31![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Tue 4/287:04 pm
MIA
- BWI
1 stop5h 40m
Frontier
Deal found 3/31![Frontier logo]()
$113
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Sun 5/36:00 am
MIA
- BWI
1 stop4h 49m
Frontier
Deal found 3/31![Frontier logo]()
$114
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:44 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Sat 4/188:00 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 3/31![Frontier logo]()
$115
This WAYA deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:27 pm
BWI
- MIA
1 stop5h 30m
Frontier
Thu 4/235:25 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 4/2![Frontier logo]()
$116
Best flights from Baltimore to Key LargoDiscover carefully curated flight deals from Baltimore to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
Discover carefully curated flight deals from Baltimore to Key Largo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
This Southwest deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:20 pm
BWI
- MIA
Nonstop2h 40m
Southwest
Thu 4/306:25 pm
MIA
- BWI
Nonstop2h 40m
Southwest
Deal found 4/2![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 3/29. 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.
Sun 5/106:20 am
BWI
- MIA
Nonstop2h 35m
Southwest
Wed 5/137:20 am
MIA
- BWI
Nonstop2h 35m
Southwest
Deal found 3/29![Southwest logo]()
$274
This Southwest deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:45 am
BWI
- MIA
2 stops9h 30m
Southwest
Wed 5/612:10 pm
MIA
- BWI
2 stops7h 30m
Southwest
Deal found 4/2![Southwest logo]()
$278
This Southwest deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1610:35 am
BWI
- MIA
2 stops6h 25m
Southwest
Sat 5/236:15 am
MIA
- BWI
2 stops8h 40m
Southwest
Deal found 4/1![Southwest logo]()
$304
This Southwest deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:20 am
BWI
- MIA
2 stops8h 40m
Southwest
Sun 5/176:10 am
MIA
- BWI
1 stop4h 05m
Southwest
Deal found 4/1![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/293:05 pm
BWI
- MIA
2 stops6h 20m
Southwest
Mon 6/11:45 pm
MIA
- BWI
1 stop4h 45m
Southwest
Deal found 4/2![Southwest logo]()
$330
This Southwest deal was found by Cheapflights users on 3/29. 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.
Sat 5/235:50 pm
BWI
- MIA
1 stop4h 15m
Southwest
Wed 5/2712:10 pm
MIA
- BWI
2 stops9h 00m
Southwest
Deal found 3/29![Southwest logo]()
$360
This Southwest deal was found by Cheapflights users on 3/29. 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.
Sat 9/51:35 pm
BWI
- MIA
Nonstop2h 40m
Southwest
Sat 9/199:40 am
MIA
- BWI
Nonstop2h 25m
Southwest
Deal found 3/29![Southwest logo]()
$361
This Southwest deal was found by Cheapflights users on 3/29. 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.
Sun 9/136:30 pm
BWI
- MIA
1 stop4h 20m
Southwest
Sat 9/199:40 am
MIA
- BWI
Nonstop2h 25m
Southwest
Deal found 3/29![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:25 am
BWI
- MIA
1 stop5h 45m
Southwest
Mon 8/176:20 am
MIA
- BWI
Nonstop2h 30m
Southwest
Deal found 4/2![Southwest logo]()
$371
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:30 pm
BWI
- MIA
1 stop4h 20m
Southwest
Sat 8/157:00 am
MIA
- BWI
2 stops6h 35m
Southwest
Deal found 3/31![Southwest logo]()
$382
This Southwest deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:30 pm
BWI
- MIA
Nonstop2h 45m
Southwest
Sun 7/56:20 am
MIA
- BWI
Nonstop2h 35m
Southwest
Deal found 4/2![Southwest logo]()
$382
Last-minute flights from Baltimore to Key LargoDiscover last-minute flight deals from Baltimore to Key Largo. Data last updated April 3, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Key Largo. Data last updated April 3, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:44 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Sat 4/188:00 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 3/31![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:49 pm
BWI
- MIA
Nonstop2h 49m
Frontier
Fri 4/175:30 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 3/31![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Tue 4/217:04 pm
MIA
- BWI
1 stop5h 40m
Frontier
Deal found 3/31![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 3/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Thu 4/235:25 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 3/29![Frontier logo]()
$117
This WAYA deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:27 pm
BWI
- MIA
1 stop5h 30m
Frontier
Thu 4/235:25 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 4/2![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:49 pm
BWI
- MIA
1 stop28h 42m
Multiple Airlines
Sat 5/28:00 am
MIA
- BWI
Nonstop2h 51m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$107
This Priceline deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:53 pm
BWI
- MIA
1 stop6h 56m
Frontier
Sat 5/28:00 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 4/1![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Tue 4/287:04 pm
MIA
- BWI
1 stop5h 40m
Frontier
Deal found 3/31![Frontier logo]()
$113
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Sun 5/36:00 am
MIA
- BWI
1 stop4h 49m
Frontier
Deal found 3/31![Frontier logo]()
$114
This Frontier deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:46 am
BWI
- MIA
Nonstop2h 51m
Frontier
Sun 5/36:00 am
MIA
- BWI
1 stop4h 49m
Frontier
Deal found 4/1![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:30 am
BWI
- MIA
Nonstop2h 48m
Frontier
Mon 5/118:00 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 4/2![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Fri 5/153:55 pm
MIA
- BWI
Nonstop2h 47m
Frontier
Deal found 3/31![Frontier logo]()
$112
One-way flights from Baltimore to Key LargoSearch for one-way flight options from Baltimore to Key Largo. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
Search for one-way flight options from Baltimore to Key Largo. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
This Super.com deal was found by Cheapflights users on 3/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Deal found 3/30![Frontier logo]()
$53
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Sat 5/307:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Deal found 3/29![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Deal found 4/1![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:17 pm
BWI
- MIA
1 stop10h 14m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$66
This Frontier deal was found by Cheapflights users on 3/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Deal found 3/29![Frontier logo]()
$67
This Super.com deal was found by Cheapflights users on 3/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:53 pm
BWI
- MIA
1 stop6h 56m
Frontier
Deal found 3/30![Frontier logo]()
$69
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:52 am
BWI
- MIA
1 stop7h 35m
Frontier
Deal found 3/31![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:09 pm
BWI
- MIA
1 stop4h 37m
Frontier
Deal found 3/31![Frontier logo]()
$71
Find flight deals from Baltimore to Key Largo
Keep the following information in mind while searching for Baltimore to Key Largo flight deals. Data was last updated April 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $104 (Kiwi.com) |
One-way from | $53 (Super.com) |
Popular in | March |
Cheapest in | September |
Average price | $266 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore 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 April 3, 2026.
Use the filters below to find and compare flights from Baltimore to Key Largo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Fri 4/24
8:20 pm-11:00 pm
Nonstop2h 40m
Miami
Thu 4/30
6:25 pm-9:05 pm
Nonstop2h 40m
$257
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 5/10
6:20 am-8:55 am
Nonstop2h 35m
Miami
Wed 5/13
7:20 am-9:55 am
Nonstop2h 35m
$274
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 5/3
7:45 am-5:15 pm
2 stops9h 30m
Miami
Wed 5/6
12:10 pm-7:40 pm
2 stops7h 30m
$278
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sat 5/16
10:35 am-5:00 pm
2 stops6h 25m
Miami
Sat 5/23
6:15 am-2:55 pm
2 stops8h 40m
$304
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sat 5/9
8:20 am-5:00 pm
2 stops8h 40m
Miami
Sun 5/17
6:10 am-10:15 am
1 stop4h 05m
$325
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Fri 5/29
3:05 pm-9:25 pm
2 stops6h 20m
Miami
Mon 6/1
1:45 pm-6:30 pm
1 stop4h 45m
$330
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sat 5/23
5:50 pm-10:05 pm
1 stop4h 15m
Miami
Wed 5/27
12:10 pm-9:10 pm
2 stops9h 00m
$360
Quickest round-trip
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sat 9/5
1:35 pm-4:15 pm
Nonstop2h 40m
Miami
Sat 9/19
9:40 am-12:05 pm
Nonstop2h 25m
$361
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 9/13
6:30 pm-10:50 pm
1 stop4h 20m
Miami
Sat 9/19
9:40 am-12:05 pm
Nonstop2h 25m
$367
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Fri 8/14
10:25 am-4:10 pm
1 stop5h 45m
Miami
Mon 8/17
6:20 am-8:50 am
Nonstop2h 30m
$371
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Baltimore to Key Largo
Have a flexible travel schedule? Discover the best time to fly to Key Largo from Baltimore with our price prediction graph.
BWI-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 Baltimore to Key Largo
BWI-KE9
BWI-MIA
How far ahead should I book a flight from Baltimore to Key Largo?
Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Key Largo. Price data was last updated on April 2, 2026.
The price you pay for your flight from Baltimore to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Baltimore to Key Largo?
Currently, December is the cheapest month in which you can book a flight from Baltimore to Key Largo (average of $47). Flying from Baltimore to Key Largo in July is currently the most expensive (average of $91). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BWI to KE9?
Find hourly flight availability from Baltimore 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 April 3, 2026.
It’s optimal to fly from Baltimore to Key Largo at noon. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from Baltimore to Key Largo?
Use this chart to determine the cheapest time to fly round-trip from Baltimore to Key Largo. Price data was last updated on March 28, 2026.
Travelers seeking maximum savings on their Baltimore to Key Largo flight should consider departing on Monday at noon when fares are most often at their lowest. Thursday mornings 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 Baltimore 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 April 3, 2026.
See what other customers who have flown with Southwest,JetBlue, andAmerican Airlines from Baltimore 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.
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Baltimore 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 Baltimore 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 Baltimore to Key Largo by cabin class
Find flights from Baltimore to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and Key Largo flights
Browse other Baltimore and Key Largo flight options. Last updated on April 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Baltimore to Key Largo flights
Consider these flights traveling from Baltimore to Key Largo.
Top 7 airlines flying from Baltimore to Key Largo
Discover the top 7 airlines that operate flights from Baltimore 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 April 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$167 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$75 | Average$245 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$95 | Average$254 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$142 | Average$364 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$153 | Average$415 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$155 | Average$387 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$161 | Average$297 | FlexibilityNo cancel fee | On-time69% |