$142+ Cheap flights from Puerto Rico to Key West (EYW)
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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — EYW
Sep 4 — Sep 111
Round-trip
1 adult, Economy
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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
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.Cheap flight deals from Puerto Rico to Key West
Cheapest
Best
Last-minute
One-way
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 August 5, 2026.
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 August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:39 pm -
1 stop16h 45m
Mon 10/510:59 am -
1 stop14h 53m
Deal found 8/1![Multiple Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:39 pm -
1 stop16h 45m
Fri 11/2010:59 am -
1 stop14h 34m
Deal found 8/3![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:55 pm -
1 stop18h 24m
Sun 9/2010:59 am -
1 stop12h 14m
Deal found 8/1![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:10 am -
1 stop8h 17m
Sun 8/912:05 pm -
1 stop23h 38m
Deal found 8/1![Multiple Airlines logo]()
$466
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:00 am -
2 stops11h 39m
Mon 10/57:19 pm -
2 stops16h 12m
Deal found 8/1![American Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops11h 55m
Sun 9/204:45 pm -
2 stops18h 15m
Deal found 8/1![American Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:25 am -
3 stops30h 27m
Fri 11/202:50 pm -
1 stop21h 25m
Deal found 8/3![United Airlines logo]()
$1,036
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:05 am -
2 stops37h 14m
Sun 8/92:26 pm -
2 stops30h 58m
Deal found 8/1![United Airlines logo]()
$1,193
Best flights from Puerto Rico to Key WestDiscover carefully curated flight deals from Puerto Rico to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
Discover carefully curated flight deals from Puerto Rico to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:55 pm -
1 stop18h 24m
Sun 9/2010:59 am -
1 stop12h 14m
Deal found 8/1![Multiple Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:00 am -
2 stops11h 39m
Mon 10/57:19 pm -
2 stops16h 12m
Deal found 8/1![American Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:25 am -
3 stops30h 27m
Fri 11/202:50 pm -
1 stop21h 25m
Deal found 8/3![United Airlines logo]()
$1,036
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops11h 55m
Sun 9/204:45 pm -
2 stops18h 15m
Deal found 8/1![American Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 8/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:25 pm -
1 stop24h 04m
Thu 10/152:15 pm -
2 stops22h 19m
Deal found 8/2![United Airlines logo]()
$1,968
Last-minute flights from Puerto Rico to Key WestDiscover last-minute flight deals from Puerto Rico to Key West. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to Key West. Data last updated August 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:10 am -
1 stop8h 17m
Sun 8/912:05 pm -
1 stop23h 38m
Deal found 8/1![Multiple Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:05 am -
2 stops37h 14m
Sun 8/92:26 pm -
2 stops30h 58m
Deal found 8/1![United Airlines logo]()
$1,193
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/171:00 am -
1 stop12h 29m
Sat 8/222:15 pm -
1 stop9h 35m
Deal found 8/3![United Airlines logo]()
$3,456
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:55 pm -
1 stop18h 24m
Sun 9/2010:59 am -
1 stop12h 14m
Deal found 8/1![Multiple Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops11h 55m
Sun 9/204:45 pm -
2 stops18h 15m
Deal found 8/1![American Airlines logo]()
$546
One-way flights from Puerto Rico to Key WestSearch for one-way flight options from Puerto Rico to Key West. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
Search for one-way flight options from Puerto Rico to Key West. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/25:37 pm -
1 stop22h 42m
Deal found 8/5![Multiple Airlines logo]()
$142
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 August 5, 2026.
Round-trip from | $274 (Kiwi.com) |
|---|---|
One-way from | $142 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Puerto Rico to Key West 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 August 5, 2026.
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
Cheapest round-trip
San JuanKey West
SJU San Juan Luis Munoz Marin Intl - EYW Key West
SJUEYW
San Juan Luis Munoz Marin Intl
Thu 9/17
3:55 pm-10:19 am
1 stop18h 24m
Key West
Sun 9/20
10:59 am-11:13 pm
1 stop12h 14m
$426
Quickest round-trip
San JuanKey West
SJU San Juan Luis Munoz Marin Intl - EYW Key West
SJUEYW
San Juan Luis Munoz Marin Intl
Fri 10/2
6:00 am-5:39 pm
2 stops11h 39m
Key West
Mon 10/5
7:19 pm-11:31 am
2 stops16h 12m
$506
San JuanKey West
SJU San Juan Luis Munoz Marin Intl - EYW Key West
SJUEYW
San Juan Luis Munoz Marin Intl
Thu 9/17
6:00 am-5:55 pm
2 stops11h 55m
Key West
Sun 9/20
4:45 pm-11:00 am
2 stops18h 15m
$546
San JuanKey West
SJU San Juan Luis Munoz Marin Intl - EYW Key West
SJUEYW
San Juan Luis Munoz Marin Intl
Tue 11/17
8:25 am-1:52 pm
3 stops30h 27m
Key West
Fri 11/20
2:50 pm-1:15 pm
1 stop21h 25m
$1,036
San JuanKey West
SJU San Juan Luis Munoz Marin Intl - EYW Key West
SJUEYW
San Juan Luis Munoz Marin Intl
Sun 10/11
1:25 pm-1:29 pm
1 stop24h 04m
Key West
Thu 10/15
2:15 pm-12:34 pm
2 stops22h 19m
$1,968
Cheapest one-way
Quickest one-way
San JuanKey West
SJU San Juan Luis Munoz Marin Intl - EYW Key West
SJUEYW
San Juan Luis Munoz Marin Intl
Wed 9/2
5:37 pm-4:19 pm
1 stop22h 42m
$142
Sorted by cheapest first
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.
SJU-EYW
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 Puerto Rico to Key West
PR0-EYW
SJU-EYW
No data available for this route at this time. Please check back soon.
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