$50+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — MIA
Jun 27 — Jul 41
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 66 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 May 28, 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 May 28, 2026.
This Super.com deal was found by Cheapflights users on 5/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Wed 7/13:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 5/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Tue 7/213:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/28![Frontier logo]()
$128
This Booking.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/137:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Fri 6/193:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/24![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 5/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Thu 7/23:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Sun 7/123:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/28![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Mon 7/67:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Sat 7/113:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/28![Frontier logo]()
$132
This Trip.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/157:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Tue 6/163:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/24![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Wed 7/17:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Tue 7/73:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/28![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Tue 8/113:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/23![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Thu 7/97:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Thu 7/163:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/28![Frontier logo]()
$139
This Super.com deal was found by Cheapflights users on 5/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Sat 8/13:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/25![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Sat 8/13:39 pm
MIA
- BWI
Nonstop2h 53m
Frontier
Deal found 5/26![Frontier logo]()
$141
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 May 28, 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 May 28, 2026.
This Delta deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:18 am
BWI
- MIA
1 stop4h 44m
Delta
Wed 8/2612:05 pm
MIA
- BWI
1 stop5h 46m
Delta
Deal found 5/23![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:05 am
BWI
- MIA
1 stop7h 30m
Southwest
Wed 6/1011:45 am
MIA
- BWI
2 stops10h 40m
Southwest
Deal found 5/24![Southwest logo]()
$252
This Delta deal was found by Cheapflights users on 5/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:00 am
BWI
- MIA
1 stop6h 00m
Delta
Wed 8/196:00 am
MIA
- BWI
1 stop4h 57m
Delta
Deal found 5/26![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 5/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:00 pm
BWI
- MIA
1 stop4h 59m
Delta
Tue 7/218:20 am
MIA
- BWI
1 stop7h 33m
Delta
Deal found 5/25![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:40 pm
BWI
- MIA
1 stop4h 30m
Southwest
Tue 6/96:00 am
MIA
- BWI
1 stop4h 20m
Southwest
Deal found 5/23![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 5/27. 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.
Wed 6/105:40 am
BWI
- MIA
1 stop7h 24m
Delta
Tue 6/167:16 pm
MIA
- BWI
1 stop5h 24m
Delta
Deal found 5/27![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 5/26. 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.
Tue 8/112:00 pm
BWI
- MIA
1 stop7h 50m
Southwest
Tue 8/187:10 am
MIA
- BWI
2 stops6h 05m
Southwest
Deal found 5/26![Southwest logo]()
$282
This Southwest deal was found by Cheapflights users on 5/26. 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.
Sun 8/166:30 pm
BWI
- MIA
1 stop4h 20m
Southwest
Sat 8/227:00 am
MIA
- BWI
2 stops6h 35m
Southwest
Deal found 5/26![Southwest logo]()
$316
This Delta deal was found by Cheapflights users on 5/27. 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.
Sat 10/316:10 pm
BWI
- MIA
1 stop6h 42m
Delta
Sat 11/78:05 am
MIA
- BWI
1 stop4h 59m
Delta
Deal found 5/27![Delta logo]()
$301
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:05 pm
BWI
- MIA
2 stops9h 05m
Southwest
Wed 7/1511:25 am
MIA
- BWI
2 stops8h 45m
Southwest
Deal found 5/24![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 5/26. 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.
Thu 7/164:30 pm
BWI
- MIA
1 stop5h 40m
Southwest
Mon 7/207:15 am
MIA
- BWI
2 stops7h 20m
Southwest
Deal found 5/26![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:40 am
BWI
- MIA
2 stops9h 30m
Southwest
Sun 8/166:05 am
MIA
- BWI
2 stops9h 45m
Southwest
Deal found 5/26![Southwest logo]()
$377
Last-minute flights from Baltimore to Key LargoDiscover last-minute flight deals from Baltimore to Key Largo. Data last updated May 28, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Key Largo. Data last updated May 28, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Tue 6/163:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$145
This Frontier deal was found by Cheapflights users on 5/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Tue 6/163:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$143
This Frontier deal was found by Cheapflights users on 5/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Thu 6/183:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/28![Frontier logo]()
$144
This Booking.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/137:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Fri 6/193:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/24![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Sun 6/147:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Wed 6/243:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/25![Frontier logo]()
$139
This Super.com deal was found by Cheapflights users on 5/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Wed 6/173:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/26![Frontier logo]()
$142
This Trip.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/157:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Tue 6/163:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/24![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 5/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Wed 6/243:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/28![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Fri 6/263:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$147
This Super.com deal was found by Cheapflights users on 5/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Wed 7/13:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$127
This Priceline deal was found by Cheapflights users on 5/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Thu 7/23:40 pm
MIA
- BWI
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$130
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 May 28, 2026.
Search for one-way flight options from Baltimore to Key Largo. Find affordable one-way fares based on user searches. Data last updated May 28, 2026.
This deal was found by Cheapflights users on 5/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Deal found 5/25![Frontier logo]()
$50
This deal was found by Cheapflights users on 5/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Deal found 5/25![Frontier logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Mon 6/157:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Deal found 5/25![Frontier logo]()
$63
This Frontier deal was found by Cheapflights users on 5/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Deal found 5/27![Frontier logo]()
$64
This Frontier deal was found by Cheapflights users on 5/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Deal found 5/27![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Thu 7/167:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Deal found 5/25![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 5/27. 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.
Thu 8/67:27 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Deal found 5/27![Frontier logo]()
$78
This Mytrip deal was found by Cheapflights users on 5/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:27 pm
BWI
- MIA
Nonstop2h 55m
Frontier
Deal found 5/27![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Thu 11/57:34 pm
BWI
- MIA
Nonstop2h 47m
Frontier
Deal found 5/25![Frontier logo]()
$80
This Priceline deal was found by Cheapflights users on 5/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:27 pm
BWI
- MIA
Nonstop2h 45m
Frontier
Deal found 5/27![Frontier logo]()
$81
This CheapOair deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:34 pm
BWI
- MIA
Nonstop2h 47m
Frontier
Deal found 5/24![Frontier logo]()
$86
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 May 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Super.com) |
One-way from | $50 |
Popular in | March |
Cheapest in | September |
Average price | $296 |
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 May 28, 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
Sun 8/23
8:18 am-1:02 pm
1 stop4h 44m
Miami
Wed 8/26
12:05 pm-5:51 pm
1 stop5h 46m
$217
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Tue 8/11
7:00 am-1:00 pm
1 stop6h 00m
Miami
Wed 8/19
6:00 am-10:57 am
1 stop4h 57m
$217
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Mon 7/13
5:00 pm-9:59 pm
1 stop4h 59m
Miami
Tue 7/21
8:20 am-3:53 pm
1 stop7h 33m
$217
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Wed 6/10
5:40 am-1:04 pm
1 stop7h 24m
Miami
Tue 6/16
7:16 pm-12:40 am
1 stop5h 24m
$247
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Mon 6/8
8:05 am-3:35 pm
1 stop7h 30m
Miami
Wed 6/10
11:45 am-10:25 pm
2 stops10h 40m
$252
Quickest round-trip
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 6/7
5:40 pm-10:10 pm
1 stop4h 30m
Miami
Tue 6/9
6:00 am-10:20 am
1 stop4h 20m
$277
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Tue 8/11
2:00 pm-9:50 pm
1 stop7h 50m
Miami
Tue 8/18
7:10 am-1:15 pm
2 stops6h 05m
$282
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sat 10/31
6:10 pm-12:52 am
1 stop6h 42m
Miami
Sat 11/7
8:05 am-1:04 pm
1 stop4h 59m
$301
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 8/16
6:30 pm-10:50 pm
1 stop4h 20m
Miami
Sat 8/22
7:00 am-1:35 pm
2 stops6h 35m
$316
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Tue 6/23
1:05 pm-10:10 pm
2 stops9h 05m
Miami
Wed 7/15
11:25 am-8:10 pm
2 stops8h 45m
$317
Showing 1-10 of 23 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
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 May 28, 2026.
It’s optimal to fly from Baltimore to Key Largo at noon. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from Baltimore to Key Largo
Explore weekly flight availability from Baltimore to Key Largo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 28, 2026.
The most flights from BWI to KE9 are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Baltimore to Key Largo?
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 May 23, 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.
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 May 28, 2026.
See what other customers who have flown with Southwest,American Airlines, andJetBlue 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.
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Spirit Airlines
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
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 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 May 28, 2026.
Popular flight searches
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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 May 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$177 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$76 | Average$258 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$108 | Average$264 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$138 | Average$375 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$145 | Average$404 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$155 | Average$394 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$161 | Average$285 | FlexibilityNo cancel fee | On-time69% |