$239 Find Cheap Flights from Key West to Puerto Rico - Compare and Save

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Book Cheap Key West to Puerto Rico Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Key West to Puerto Rico

Tue, Dec 1 - Sat, Dec 5
Multiple Airlines Logo
1:16 pm - 11:48 pmEYW  Key West-SJU San Juan Luis Munoz Marin Intl
9h 32m1 stop Tampa
Multiple Airlines Logo
9:02 pm - 11:21 amSJU  San Juan Luis Munoz Marin Intl-EYW Key West
15h 19m1 stop Tampa
$294Multiple Airlines
Tue, Dec 1 - Sat, Dec 5
Multiple Airlines Logo
10:59 am - 1:07 amEYW  Key West-SJU San Juan Luis Munoz Marin Intl
13h 08m2 stops Orlando Atlanta Hartsfield-Jackson
Multiple Airlines Logo
9:02 pm - 11:21 amSJU  San Juan Luis Munoz Marin Intl-EYW Key West
15h 19m1 stop Tampa
$320Multiple Airlines
Tue, Dec 1 - Tue, Dec 8
Multiple Airlines Logo
1:16 pm - 11:48 pmEYW  Key West-SJU San Juan Luis Munoz Marin Intl
9h 32m1 stop Tampa
Multiple Airlines Logo
5:01 am - 10:04 amSJU  San Juan Luis Munoz Marin Intl-EYW Key West
30h 03m2 stops Atlanta Hartsfield-Jackson Tampa
$353Multiple Airlines
Fri, Nov 6 - Tue, Nov 10
Multiple Airlines Logo
10:59 am - 6:21 pmEYW  Key West-SJU San Juan Luis Munoz Marin Intl
6h 22m1 stop Orlando
Multiple Airlines Logo
3:55 pm - 9:24 amSJU  San Juan Luis Munoz Marin Intl-EYW Key West
18h 29m2 stops Atlanta Hartsfield-Jackson Tampa
$364Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
Multiple Airlines Logo
6:26 pm - 2:59 pmEYW  Key West-SJU San Juan Luis Munoz Marin Intl
43h 33m2 stops Tampa St. Petersburg Baltimore/Washington
Multiple Airlines Logo
4:04 pm - 11:20 amSJU  San Juan Luis Munoz Marin Intl-EYW Key West
20h 16m1 stop Orlando
$366Multiple Airlines
Tue, Feb 2 - Mon, Feb 8
Multiple Airlines Logo
10:59 am - 11:00 amEYW  Key West-SJU San Juan Luis Munoz Marin Intl
23h 01m2 stops Orlando Philadelphia
Multiple Airlines Logo
3:55 am - 10:19 amSJU  San Juan Luis Munoz Marin Intl-EYW Key West
7h 24m1 stop Orlando
$371Multiple Airlines
Sat, Nov 28 - Sat, Dec 12
Multiple Airlines Logo
10:04 am - 6:38 pmEYW  Key West-SJU San Juan Luis Munoz Marin Intl
7h 34m1 stop Tampa
Multiple Airlines Logo
9:02 pm - 2:31 pmSJU  San Juan Luis Munoz Marin Intl-EYW Key West
18h 29m1 stop Tampa
$373Multiple Airlines
Thu, Nov 19 - Sun, Nov 22
Multiple Airlines Logo
12:01 pm - 7:27 pmEYW  Key West-SJU San Juan Luis Munoz Marin Intl
6h 26m1 stop Tampa
Multiple Airlines Logo
6:00 am - 10:19 amSJU  San Juan Luis Munoz Marin Intl-EYW Key West
29h 19m2 stops Baltimore/Washington Orlando
$386Multiple Airlines
Sat, Nov 28 - Sat, Dec 12
American Airlines Logo
7:37 pm - 9:38 amEYW  Key West-SJU San Juan Luis Munoz Marin Intl
13h 01m1 stop Miami
American Airlines Logo
7:20 am - 1:14 pmSJU  San Juan Luis Munoz Marin Intl-EYW Key West
6h 54m1 stop Miami
$602American Airlines
Sat, Nov 28 - Sun, Dec 13
American Airlines Logo
7:37 pm - 10:41 amEYW  Key West-SJU San Juan Luis Munoz Marin Intl
14h 04m1 stop Miami
American Airlines Logo
7:20 am - 1:14 pmSJU  San Juan Luis Munoz Marin Intl-EYW Key West
6h 54m1 stop Miami
$602American Airlines
Booking Insights

Price, demand and travel trends for Key West to Puerto Rico flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Key West to Puerto Rico right now?

The cheapest fare from Key West to Puerto Rico in the last week was $294 round-trip, to San Juan Luis Munoz Marin Intl (SJU).

Which airport in Puerto Rico is the cheapest to fly to from Key West?

All flights from Key West to Puerto Rico arrive at San Juan Luis Munoz Marin Intl (SJU). On average, round-trip fares are around $586.

What’s the cheapest day to fly from Key West to Puerto Rico?

Saturday tends to be the cheapest day to fly from Key West to Puerto Rico, while Monday is the most expensive. Fares run about 53% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Key West to Puerto Rico?

Data from the past 12 months shows it's cheapest to fly to Puerto Rico during the morning with average prices of $595. The afternoon is the most expensive time to fly, with average prices of $731.

Find deals

Key details for Key West to Puerto Rico flights

Low season

April

Cheapest flight

$221
Beat the crowds with an average 89% drop in travelers.
The most popular month to fly with an average 6% increase in travelers.
Round-trip flight from Key West to San Juan Luis Munoz Marin Intl Airport

Your Key West to Puerto Rico flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Key West to Puerto Rico?

    Yes. Fares from Key West to Puerto Rico are low right now. As a rule of thumb, a round-trip under $546 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Key West to Puerto Rico?

    Over the past 12 months, round-trip fares from Key West to Puerto Rico have ranged from $546 to $762.

  • What airlines fly nonstop from Key West to Puerto Rico?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Key West to Puerto Rico. However, American Airlines offers a one-stop option.

  • Which cabin classes are available on flights from Key West to Puerto Rico?

    On flights from Key West to Puerto Rico you can only book Economy Class.

  • What are some popular landmarks in Puerto Rico?

    KAYAK travelers' favorite landmarks in Puerto Rico include:

    • Viejo San Juan
    • Condado Beach
    • Puerto Rico Convention Center
    • Ocean Park

Your guide to booking Key West to Puerto Rico flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Saturday is usually the cheapest. Flights on Monday cost about 53% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in San Juan, which is the most popular destination in Puerto Rico. From there, it's easy to continue on to other popular destinations such as Carolina, Fajardo and Rio Grande.

Reviews of the top airline flying from Key West to Puerto Rico

 
Need help choosing which airline to fly with from Key West to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
American AirlinesOverall score based on 12190 reviews
7.4Boarding
6.4Food
7.9Crew
6.8Entertainment
7.1Comfort
Airline reviews

Good flight, excellent personnel; poor comfort, small seats, big cost.

10.0 ExcellentMA, Oct 2026
Read more American Airlines reviews

Good flight, excellent personnel; poor comfort, small seats, big cost.

This trip on American was the WORST I have ever experienced. The plan was LATE taking off from Tucson due to mechanical issues. It caused me to arrive late in Dallas, so I tried to move flights so I would not miss my dinner meeting. First attempt, that flight was delayed, Second attempt, that flight was also delayed. Got back on original flight, the mechanical issue was NOT fixed, so we de-planed and had to find the new gate. Overall, was which was 4 hours delayed and missed the dinner meeting. Friday return, flight from Orlando was on time and landed early. Then the next flight was delayed due to crew coming in late, and them waiting on other passengers. After 90 minutes of delay, we boarded, and then were informed the Fist Officer could not fly due to time constraints. At 12:15 AM we were offered a hotel for a 4:20 boarding flight. Not happening. DFW was COLD and no place to sleep. Plane delayed again to 6:50, but was late taking off AGAIN. Finally landed in Tucson at around 8AM. Should be refunded 75% of the ticket costs due to negligence, nothing more.

Cabin was bone dry, no humidity whatsoever, and pretty warm; and beverage service didn't start for at least an hour. I had to go to the back for water and the FAs tried telling me it was always this way for all Miami flights, which is complete nonsense. Avoid the MAX8 like the plague.

Im sitting here waiting over an hour for my golf clubs

Flight was 2+ hours delayed and they “misplaced” all 3 of our checked-in bags.

Overall, really good experience, on time and the comfort was there. Wi-Fi was easy to connect

I have never been assaulted they way I was today in Charlotte - shame on American

The plane was broken so we had to change planes.

Uncomfortable seats and flight attendant was rude as she insisted on waking up my husband to ask him if he wanted a drink. When he said that he was sleeping, she replied “without an attitude “. He was seated at 8c

Airlines must do something with overweight people... Maybe reserve a business class seat for them, or you could pay the consequences if someone overweight seat side by side to you in economy.

More options for your flight from Key West to Puerto Rico

Complete your trip to Puerto Rico with a hotel stay or car rental

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