$68+ Cheap flights from Key Largo, FL to Luis Munoz Marin Intl (SJU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SJU
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Key Largo to Luis Munoz Marin Intl 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 Key Largo to San Juan Luis Munoz Marin Intl are usually found in April or January, booked 77 days in advance, depart on a Monday or Thursday and return on a Friday
Cheap flight deals from Key Largo to Luis Munoz Marin Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Key Largo to Luis Munoz Marin IntlExplore the most affordable flight options available from Key Largo to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
Explore the most affordable flight options available from Key Largo to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
This eDestinos deal was found by Cheapflights users on 8/31. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:45 am -
Nonstop2h 42m
Mon 9/213:08 am -
Nonstop2h 41m
Deal found 8/31![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:30 pm -
Nonstop2h 43m
Sat 10/33:08 am -
Nonstop2h 41m
Deal found 9/4![Frontier logo]()
$126
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:30 pm -
Nonstop2h 43m
Tue 9/293:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$127
This Priceline deal was found by Cheapflights users on 9/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:10 am -
Nonstop2h 43m
Thu 10/13:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$128
This Frontier deal was found by Cheapflights users on 8/31. 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 9/2911:30 pm -
Nonstop2h 43m
Sat 10/33:39 pm -
Nonstop2h 44m
Deal found 8/31![Frontier logo]()
$129
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:30 pm -
Nonstop2h 43m
Tue 10/63:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:30 pm -
Nonstop2h 43m
Sun 9/273:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$131
This Super.com deal was found by Cheapflights users on 9/1. 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.
Thu 10/2211:29 pm -
Nonstop2h 40m
Sat 10/243:04 am -
Nonstop2h 51m
Deal found 9/1![Frontier logo]()
$132
This Booking.com deal was found by Cheapflights users on 9/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:30 pm -
Nonstop2h 43m
Sun 9/273:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$133
This Super.com deal was found by Cheapflights users on 9/3. 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 9/2611:30 pm -
Nonstop2h 43m
Mon 9/283:08 am -
Nonstop2h 41m
Deal found 9/3![Frontier logo]()
$134
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:30 pm -
Nonstop2h 43m
Sun 10/43:08 am -
Nonstop2h 41m
Deal found 9/1![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 pm -
Nonstop2h 43m
Mon 10/53:08 am -
Nonstop2h 41m
Deal found 9/4![Frontier logo]()
$136
Best flights from Key Largo to Luis Munoz Marin IntlDiscover carefully curated flight deals from Key Largo to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Key Largo to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This Southwest deal was found by Cheapflights users on 9/3. 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 9/2512:50 pm -
2 stops11h 05m
Mon 9/285:00 am -
2 stops11h 25m
Deal found 9/3![Southwest logo]()
$216
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:10 pm -
1 stop6h 10m
Sun 10/46:35 am -
1 stop5h 20m
Deal found 9/4![Southwest logo]()
$234
This Southwest deal was found by Cheapflights users on 8/31. 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.
Tue 9/157:30 am -
2 stops11h 35m
Mon 9/216:00 am -
2 stops10h 25m
Deal found 8/31![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 9/1. 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.
Wed 9/167:10 am -
1 stop6h 20m
Wed 9/308:20 am -
2 stops11h 55m
Deal found 9/1![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 9/3. 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 9/196:30 am -
2 stops11h 40m
Sat 9/2610:25 am -
2 stops9h 55m
Deal found 9/3![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 9/1. 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.
Wed 9/309:15 am -
2 stops8h 55m
Mon 10/55:00 am -
1 stop6h 50m
Deal found 9/1![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 8/31. 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.
Wed 9/309:15 am -
2 stops9h 50m
Wed 10/76:35 am -
1 stop5h 15m
Deal found 8/31![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 9/1. 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.
Tue 10/68:40 am -
2 stops9h 05m
Sun 10/115:30 am -
1 stop8h 50m
Deal found 9/1![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 9/3. 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 9/197:00 am -
1 stop7h 00m
Tue 9/2210:30 am -
2 stops11h 25m
Deal found 9/3![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 8/31. 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.
Tue 10/276:45 am -
2 stops11h 00m
Wed 11/410:45 am -
2 stops10h 20m
Deal found 8/31![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 9/3. 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 10/86:10 pm -
1 stop7h 15m
Tue 10/276:35 am -
2 stops10h 55m
Deal found 9/3![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 8/31. 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.
Tue 10/1312:05 pm -
1 stop11h 05m
Fri 10/164:10 pm -
1 stop7h 00m
Deal found 8/31![Southwest logo]()
$256
Last-minute flights from Key Largo to Luis Munoz Marin IntlDiscover last-minute flight deals from Key Largo to Luis Munoz Marin Intl. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Key Largo to Luis Munoz Marin Intl. Data last updated September 5, 2026 and is based on user searches.
This eDestinos deal was found by Cheapflights users on 8/31. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:45 am -
Nonstop2h 42m
Mon 9/213:08 am -
Nonstop2h 41m
Deal found 8/31![Frontier logo]()
$125
This Priceline deal was found by Cheapflights users on 9/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:10 am -
Nonstop2h 43m
Thu 10/13:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:30 pm -
Nonstop2h 43m
Sun 9/273:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$131
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:30 pm -
Nonstop2h 43m
Tue 9/293:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$127
This Booking.com deal was found by Cheapflights users on 9/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:30 pm -
Nonstop2h 43m
Sun 9/273:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$133
This Super.com deal was found by Cheapflights users on 9/3. 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 9/2611:30 pm -
Nonstop2h 43m
Mon 9/283:08 am -
Nonstop2h 41m
Deal found 9/3![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 8/31. 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 9/2911:30 pm -
Nonstop2h 43m
Sat 10/33:39 pm -
Nonstop2h 44m
Deal found 8/31![Frontier logo]()
$129
This Super.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:30 pm -
Nonstop2h 43m
Sat 10/33:08 am -
Nonstop2h 41m
Deal found 9/4![Frontier logo]()
$126
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:30 pm -
Nonstop2h 43m
Tue 10/63:08 am -
Nonstop2h 41m
Deal found 9/2![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:30 pm -
Nonstop2h 43m
Sun 10/43:08 am -
Nonstop2h 41m
Deal found 9/1![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 pm -
Nonstop2h 43m
Mon 10/53:08 am -
Nonstop2h 41m
Deal found 9/4![Frontier logo]()
$136
This Super.com deal was found by Cheapflights users on 9/1. 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.
Thu 10/2211:29 pm -
Nonstop2h 40m
Sat 10/243:04 am -
Nonstop2h 51m
Deal found 9/1![Frontier logo]()
$132
One-way flights from Key Largo to Luis Munoz Marin IntlSearch for one-way flight options from Key Largo to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from Key Largo to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Super.com deal was found by Cheapflights users on 9/3. 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 10/911:29 pm -
Nonstop2h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$68
This Travelocity deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:10 am -
Nonstop2h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$69
This CheapOair deal was found by Cheapflights users on 9/3. 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 11/97:55 pm -
Nonstop2h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$70
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:29 pm -
Nonstop2h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$73
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:45 am -
Nonstop2h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$74
This CheapOair deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:57 am -
Nonstop2h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:57 am -
Nonstop2h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:30 pm -
Nonstop2h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 8/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:10 am -
Nonstop2h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Frontier logo]()
$78
Find flight deals from Key Largo to Luis Munoz Marin Intl
Keep the following information in mind while searching for Key Largo to Luis Munoz Marin Intl flight deals. Data was last updated September 5, 2026.
Round-trip from | $125 (eDestinos) |
|---|---|
One-way from | $68 (Super.com) |
Popular in | June |
Cheapest in | April |
Average price | $249 |
Cheapflights Fare Finder
Customize your flight search to find flights from Key Largo to Luis Munoz Marin Intl 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 7,457,451 searches. Data last updated September 5, 2026.
Use the filters below to find and compare flights from Key Largo to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Thu 10/1
6:10 pm-12:20 am
1 stop6h 10m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$108
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Wed 9/23
6:45 am-6:10 pm
2 stops11h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$108
Quickest round-trip
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Fri 9/25
4:50 pm-10:15 pm
1 stop5h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$108
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Sat 9/26
9:40 am-7:25 pm
2 stops9h 45m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$108
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Fri 10/30
11:45 am-11:10 pm
2 stops11h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$126
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Wed 10/7
6:45 am-5:45 pm
2 stops11h 00m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$126
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Thu 11/12
7:05 am-5:50 pm
1 stop9h 45m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$128
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Wed 10/14
8:40 am-8:35 pm
2 stops11h 55m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$128
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Thu 9/17
12:50 pm-11:10 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$138
MiamiSan Juan
MIA Miami - SJU San Juan Luis Munoz Marin Intl
MIASJU
Miami
Sat 9/12
6:30 am-6:10 pm
2 stops11h 40m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$138
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Key Largo to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Key Largo with our price prediction graph.
MIA-SJU
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 Key Largo to San Juan Luis Munoz Marin Intl Airport
KE9-SJU
MIA-SJU
What is the cheapest time of day to fly from KE9 to SJU?
Find hourly flight availability from Key Largo to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 5, 2026.
It’s typically best to fly out from Key Largo to San Juan Luis Munoz Marin Intl Airport in the evening. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.
How much does it cost to fly round-trip from Key Largo to San Juan Luis Munoz Marin Intl Airport?
Airfare is below average for this route at the moment.
Key Largo to San Juan Luis Munoz Marin Intl Airport flights typically cost between $183 and $359 in September.The cheapest round-trip price found within the last 5 days was $125 on Frontier (Sep 19-Sep 21).
What is the cheapest day to fly from Key Largo to San Juan Luis Munoz Marin Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Key Largo to Luis Munoz Marin Intl. Price data was last updated on August 29, 2026.
Travelers seeking maximum savings on their Key Largo to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated September 5, 2026.
Read reviews from past customers who have flown Delta,American Airlines, andJetBlue from Key Largo to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Related info for your journey
Find useful and relevant information for your journey from Key Largo to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsFajardo
Luquillo
Dorado
Rio Grande
Humacao
Bayamón
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Top 5 airlines flying from Key Largo to Luis Munoz Marin Intl
Discover the top 5 airlines that operate flights from Key Largo to Luis Munoz Marin Intl. 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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$220 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$100 | Average$323 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$108 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$200 | Average$299 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$238 | Average$488 | FlexibilityNo cancel fee | On-time71% |