$49+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — MIA
Mar 15 — Mar 221
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
Cheapest
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 February 13, 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 February 13, 2026.
This Frontier deal was found by Cheapflights users on 2/12. 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
Fri 5/15:30 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 2/12![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 2/228:54 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Sat 2/288:15 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 2/10![Frontier logo]()
$92
This Priceline deal was found by Cheapflights users on 2/10. 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 2/213:14 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Thu 2/268:00 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 2/10![Frontier logo]()
$93
This WAYA deal was found by Cheapflights users on 2/10. 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.
Sat 3/78:10 pm
BWI
- MIA
Nonstop2h 54m
Multiple Airlines
Tue 3/107:05 am
MIA
- BWI
1 stop7h 19m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/59:13 pm
BWI
- MIA
Nonstop2h 53m
Frontier
Thu 3/125:01 am
MIA
- BWI
Nonstop2h 44m
Frontier
Deal found 2/10![Frontier logo]()
$95
This WAYA deal was found by Cheapflights users on 2/11. 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.
Wed 3/46:00 am
BWI
- MIA
1 stop6h 16m
Multiple Airlines
Sat 3/74:23 pm
MIA
- BWI
Nonstop2h 43m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$96
This Super.com deal was found by Cheapflights users on 2/10. 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.
Mon 4/65:59 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Thu 4/98:30 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 2/10![Frontier logo]()
$97
This Frontier deal was found by Cheapflights users on 2/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:59 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Thu 4/165:30 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 2/9![Frontier logo]()
$98
This Travelocity deal was found by Cheapflights users on 2/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/228:30 am
BWI
- MIA
Nonstop2h 56m
Frontier
Fri 3/276:55 am
MIA
- BWI
Nonstop2h 46m
Frontier
Deal found 2/10![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Sun 2/228:54 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Fri 2/275:05 am
MIA
- BWI
Nonstop2h 44m
Frontier
Deal found 2/9![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 2/12. 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
Wed 4/297:04 pm
MIA
- BWI
1 stop5h 45m
Frontier
Deal found 2/12![Frontier logo]()
$102
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 February 13, 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 February 13, 2026.
This Expedia deal was found by Cheapflights users on 2/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:48 pm
BWI
- MIA
1 stop13h 15m
Frontier
Thu 4/165:30 am
MIA
- BWI
Nonstop2h 50m
Frontier
Deal found 2/9![Frontier logo]()
$124
This Southwest deal was found by Cheapflights users on 2/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:20 pm
BWI
- MIA
Nonstop2h 50m
Southwest
Wed 3/47:15 am
MIA
- BWI
Nonstop2h 40m
Southwest
Deal found 2/9![Southwest logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Tue 3/36:00 am
BWI
- MIA
1 stop6h 16m
Multiple Airlines
Wed 3/45:05 am
MIA
- BWI
2 stops12h 41m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$138
This CheapOair deal was found by Cheapflights users on 2/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/199:13 pm
BWI
- MIA
Nonstop2h 53m
Frontier
Thu 2/268:00 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 2/9![Frontier logo]()
$134
This Southwest deal was found by Cheapflights users on 2/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:15 pm
BWI
- MIA
Nonstop2h 45m
Southwest
Wed 3/47:15 am
MIA
- BWI
Nonstop2h 40m
Southwest
Deal found 2/9![Southwest logo]()
$147
This Southwest deal was found by Cheapflights users on 2/10. 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 3/22:20 pm
BWI
- MIA
Nonstop2h 50m
Southwest
Thu 3/56:40 pm
MIA
- BWI
Nonstop2h 45m
Southwest
Deal found 2/10![Southwest logo]()
$147
This CheapOair deal was found by Cheapflights users on 2/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:38 pm
BWI
- MIA
1 stop18h 16m
Frontier
Fri 4/175:05 am
MIA
- BWI
1 stop11h 08m
Frontier
Deal found 2/9![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 2/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/149:28 pm
BWI
- MIA
Nonstop2h 53m
Frontier
Mon 3/165:15 am
MIA
- BWI
1 stop11h 56m
Frontier
Deal found 2/9![Frontier logo]()
$165
This Southwest deal was found by Cheapflights users on 2/11. 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 3/18:30 pm
BWI
- MIA
Nonstop2h 45m
Southwest
Tue 3/37:15 am
MIA
- BWI
Nonstop2h 40m
Southwest
Deal found 2/11![Southwest logo]()
$167
This Southwest deal was found by Cheapflights users on 2/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/78:20 pm
BWI
- MIA
Nonstop2h 40m
Southwest
Tue 3/106:10 am
MIA
- BWI
Nonstop2h 40m
Southwest
Deal found 2/9![Southwest logo]()
$188
Last-minute flights from Baltimore to Key LargoDiscover last-minute flight deals from Baltimore to Key Largo. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Key Largo. Data last updated February 13, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 2/10. 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 2/213:14 pm
BWI
- MIA
Nonstop2h 52m
Frontier
Sat 2/288:15 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 2/10![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 2/228:54 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Sat 2/288:15 am
MIA
- BWI
Nonstop2h 51m
Frontier
Deal found 2/10![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Sun 2/228:54 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Fri 2/275:05 am
MIA
- BWI
Nonstop2h 44m
Frontier
Deal found 2/9![Frontier logo]()
$101
This WAYA deal was found by Cheapflights users on 2/11. 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.
Wed 3/46:00 am
BWI
- MIA
1 stop6h 16m
Multiple Airlines
Sat 3/74:23 pm
MIA
- BWI
Nonstop2h 43m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/59:13 pm
BWI
- MIA
Nonstop2h 53m
Frontier
Thu 3/125:01 am
MIA
- BWI
Nonstop2h 44m
Frontier
Deal found 2/10![Frontier logo]()
$95
This WAYA deal was found by Cheapflights users on 2/10. 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.
Sat 3/78:10 pm
BWI
- MIA
Nonstop2h 54m
Multiple Airlines
Tue 3/107:05 am
MIA
- BWI
1 stop7h 19m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/78:10 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Thu 3/125:05 am
MIA
- BWI
1 stop9h 19m
Frontier
Deal found 2/11![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/128:30 am
BWI
- MIA
Nonstop2h 56m
Frontier
Thu 3/195:01 am
MIA
- BWI
Nonstop2h 44m
Frontier
Deal found 2/10![Frontier logo]()
$97
This CheapOair deal was found by Cheapflights users on 2/10. 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.
Sat 3/219:01 pm
BWI
- MIA
Nonstop2h 53m
Frontier
Thu 3/265:01 am
MIA
- BWI
Nonstop2h 44m
Frontier
Deal found 2/10![Frontier logo]()
$98
This Priceline deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/228:30 am
BWI
- MIA
Nonstop2h 56m
Frontier
Fri 3/276:55 am
MIA
- BWI
Nonstop2h 46m
Frontier
Deal found 2/13![Frontier logo]()
$99
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 February 13, 2026.
Search for one-way flight options from Baltimore to Key Largo. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
This Frontier deal was found by Cheapflights users on 2/10. 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 2/238:54 am
BWI
- MIA
Nonstop2h 56m
Frontier
Deal found 2/10![Frontier logo]()
$49
This Frontier deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/78:10 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Deal found 2/13![Frontier logo]()
$50
This Frontier deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:48 pm
BWI
- MIA
Nonstop2h 58m
Frontier
Deal found 2/13![Frontier logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:15 am
BWI
- MIA
Nonstop2h 55m
Frontier
Deal found 2/13![Frontier logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 4/105:59 pm
BWI
- MIA
Nonstop2h 54m
Frontier
Deal found 2/9![Frontier logo]()
$53
This CheapOair deal was found by Cheapflights users on 2/10. 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.
Sat 4/47:48 pm
BWI
- MIA
Nonstop2h 58m
Frontier
Deal found 2/10![Frontier logo]()
$54
This WAYA deal was found by Cheapflights users on 2/10. 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.
Tue 3/106:05 am
BWI
- MIA
1 stop7h 01m
Frontier
Deal found 2/10![Frontier logo]()
$57
This WAYA deal was found by Cheapflights users on 2/12. 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.
Wed 3/46:00 am
BWI
- MIA
1 stop6h 16m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$58
This Frontier deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/149:28 pm
BWI
- MIA
Nonstop2h 53m
Frontier
Deal found 2/13![Frontier logo]()
$59
This WAYA deal was found by Cheapflights users on 2/10. 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.
Tue 2/246:00 am
BWI
- MIA
1 stop6h 16m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Mon 3/26:08 pm
BWI
- MIA
1 stop18h 08m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$62
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 February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $91 (Frontier) |
One-way from | $49 (Frontier) |
Popular in | November |
Cheapest in | September |
Average price | $247 |
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 February 13, 2026.
Use the filters below to find and compare flights from Baltimore to Key Largo that are best for you.
Fly from
Baltimore
Fly to
Key Largo
Route
Depart
Return
Price
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 4/12
7:48 pm-9:03 am
1 stop13h 15m
Miami
Thu 4/16
5:30 am-8:20 am
Nonstop2h 50m
$124
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Thu 2/19
9:13 pm-12:06 am
Nonstop2h 53m
Miami
Thu 2/26
8:00 am-10:51 am
Nonstop2h 51m
$134
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Mon 3/2
2:20 pm-5:10 pm
Nonstop2h 50m
Miami
Wed 3/4
7:15 am-9:55 am
Nonstop2h 40m
$137
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Tue 3/3
6:00 am-12:16 pm
1 stop6h 16m
Miami
Wed 3/4
5:05 am-5:46 pm
2 stops12h 41m
$138
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Tue 3/3
6:15 pm-9:00 pm
Nonstop2h 45m
Miami
Wed 3/4
7:15 am-9:55 am
Nonstop2h 40m
$147
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Mon 3/2
2:20 pm-5:10 pm
Nonstop2h 50m
Miami
Thu 3/5
6:40 pm-9:25 pm
Nonstop2h 45m
$147
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Mon 4/13
7:38 pm-1:54 pm
1 stop18h 16m
Miami
Fri 4/17
5:05 am-4:13 pm
1 stop11h 08m
$160
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sat 3/14
9:28 pm-12:21 am
Nonstop2h 53m
Miami
Mon 3/16
5:15 am-5:11 pm
1 stop11h 56m
$165
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 3/1
8:30 pm-11:15 pm
Nonstop2h 45m
Miami
Tue 3/3
7:15 am-9:55 am
Nonstop2h 40m
$167
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sat 3/7
8:20 pm-11:00 pm
Nonstop2h 40m
Miami
Tue 3/10
6:10 am-8:50 am
Nonstop2h 40m
$188
Showing 1-10 of 20 results
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 February 6, 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, March is the cheapest month in which you can book a flight from Baltimore to Key Largo (average of $43). Flying from Baltimore to Key Largo in July is currently the most expensive (average of $89). 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 February 13, 2026.
It’s optimal to fly from Baltimore to Key Largo in the afternoon. By choosing this option you can save up to 47% 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 February 7, 2026.
Travelers seeking maximum savings on their Baltimore to Key Largo flight should consider departing on Monday afternoons 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.
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 February 13, 2026.
The most flights from BWI to KE9 are scheduled on a Friday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).
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 February 13, 2026.
See what other customers who have flown with Southwest, American Airlines, and JetBlue 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.
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
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Complete your trip
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Baltimore and Key Largo flights
Browse other Baltimore and Key Largo flight options. Last updated on February 13, 2026.
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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 February 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$156 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$66 | Average$235 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$85 | Average$220 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$427 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$146 | Average$353 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$154 | Average$386 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$161 | Average$323 | FlexibilityNo cancel fee | On-time69% |