$350+ Cheap flights from Puerto Rico to Key West (EYW)
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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Puerto Rico to Key West 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
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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.Cheap flight deals from Puerto Rico to Key West
Cheapest flights from Puerto Rico to Key WestExplore the most affordable flight options available from Puerto Rico to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
Explore the most affordable flight options available from Puerto Rico to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
This Delta deal was found by Cheapflights users on 12/16. 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.
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from Puerto Rico to Key West
Keep the following information in mind while searching for Puerto Rico to Key West flight deals. Data was last updated December 18, 2025.
Round-trip from | $350 (Kiwi.com) |
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Cheapflights Fare Finder
Use the filters below to find and compare flights from Puerto Rico to Key West that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San JuanKey West
SJU - EYW
SJUEYW
San Juan Luis Munoz Marin Intl
Wed 2/18
4:06 pm-9:06 am
2 stops18h 00m
Key West
Fri 2/20
9:49 am-2:25 am
1 stop15h 36m
San JuanKey West
SJU - EYW
SJUEYW
San Juan Luis Munoz Marin Intl
Wed 2/18
1:58 pm-10:23 pm
1 stop9h 25m
Key West
Fri 2/20
1:36 pm-10:24 pm
1 stop7h 48m
San JuanKey West
SJU - EYW
SJUEYW
San Juan Luis Munoz Marin Intl
Thu 4/2
7:40 am-10:37 pm
1 stop14h 57m
Key West
Sat 4/4
7:36 pm-9:00 am
1 stop13h 24m
San JuanKey West
SJU - EYW
SJUEYW
San Juan Luis Munoz Marin Intl
Fri 4/3
6:00 am-12:26 pm
1 stop6h 26m
Key West
Sun 4/5
9:46 am-6:01 pm
1 stop8h 15m
San JuanKey West
SJU - EYW
SJUEYW
San Juan Luis Munoz Marin Intl
Thu 1/29
8:10 am-4:22 pm
1 stop9h 12m
Key West
Sun 2/1
6:05 pm-10:22 pm
1 stop27h 17m
San JuanKey West
SJU - EYW
SJUEYW
San Juan Luis Munoz Marin Intl
Thu 4/2
7:20 am-4:41 pm
1 stop9h 21m
Key West
Sat 4/4
4:45 pm-2:44 pm
2 stops21h 59m
San JuanKey West
SJU - EYW
SJUEYW
San Juan Luis Munoz Marin Intl
Mon 12/22
5:50 pm-11:41 am
1 stop18h 51m
Best time to book a flight from Puerto Rico to Key West
Have a flexible travel schedule? Discover the best time to fly to Key West from Puerto Rico with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Puerto Rico to Key West
What is the cheapest time of day to fly from PR to EYW?
Find hourly flight availability from Puerto Rico to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.
It’s typically best to fly out from Puerto Rico to Key West in the afternoon. Doing so could potentially save you 56% on the flight price compared to flying at noon, which is usually more expensive.