Cheap flights from Key Largo, FL to Luis Munoz Marin Intl (SJU)
MIA — SJU
Nov 28 — Dec 51
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 September, booked 64 days in advance, depart on a Tuesday or Monday and return on a Friday
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 October 29, 2026.
Popular in | June |
|---|---|
Cheapest in | April |
Average price | $235 |
Cheapflights Insights
Everything you need to know about your flight from Key Largo to San Juan Luis Munoz Marin Intl Airport
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 October 29, 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.
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 October 24, 2026.
Travelers seeking maximum savings on their Key Largo to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Wednesday at noon 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 October 29, 2026.
Read reviews from past customers who have flown JetBlue,American Airlines, andFrontier 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.
Boarding
7.3
Entertainment
7.2
Overall
7.1
Crew
7.9
Comfort
7.4
Food
6.6
Reviews
1 / 20
10.0
ExcellentRashesh,Jul 2026
FLL - BDL
Boarding
7.3
Entertainment
7.2
Overall
7.1
Crew
7.9
Comfort
7.4
Food
6.6
Reviews
1 / 20
10.0
ExcellentRashesh,Jul 2026
FLL - BDL
Boarding
7.3
Entertainment
7.2
Overall
7.1
Crew
7.9
Comfort
7.4
Food
6.6
Reviews
1 / 20
10.0
ExcellentRashesh,Jul 2026
FLL - BDL
Boarding
7.3
Entertainment
7.2
Overall
7.1
Crew
7.9
Comfort
7.4
Food
6.6
Reviews
1 / 20
10.0
ExcellentRashesh,Jul 2026
FLL - BDL
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 locationsLuquillo
Rio Grande
Fajardo
Dorado
Humacao
Bayamón
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Other flights to Luis Munoz Marin Intl
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Consider these flights traveling from Key Largo to Luis Munoz Marin Intl.
Top 4 airlines flying from Key Largo to Luis Munoz Marin Intl
Discover the top 4 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 October 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$99 | Average$219 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$100 | Average$331 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$200 | Average$300 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$229 | Average$501 | FlexibilityNo cancel fee | On-time71% |