$134 Find Cheap Flights from Key West to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to Puerto Rico departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Key West to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Key West to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Fri, Jan 16 - Sun, Jan 25
Multiple Airlines Logo
2:25 pm - 2:32 pmEYW-SJU
23h 07m1 stop
Multiple Airlines Logo
6:00 am - 2:56 pmSJU-EYW
9h 56m1 stop
$268Multiple Airlines
Find Deal
Fri, Jan 16 - Sat, Jan 24
Multiple Airlines Logo
1:06 pm - 2:48 amEYW-SJU
12h 42m1 stop
Multiple Airlines Logo
2:59 am - 9:37 pmSJU-EYW
19h 38m2 stops
$304Multiple Airlines
Find Deal
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
12:15 pm - 3:31 pmEYW-SJU
26h 16m1 stop
Multiple Airlines Logo
3:55 am - 12:26 pmSJU-EYW
9h 31m1 stop
$320Multiple Airlines
Find Deal
Fri, Jan 16 - Sun, Jan 25
Multiple Airlines Logo
2:25 pm - 11:33 pmEYW-SJU
32h 08m3 stops
Multiple Airlines Logo
6:00 am - 2:56 pmSJU-EYW
9h 56m1 stop
$321Multiple Airlines
Find Deal
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
12:15 pm - 1:24 amEYW-SJU
12h 09m2 stops
Multiple Airlines Logo
3:55 am - 12:26 pmSJU-EYW
9h 31m1 stop
$328Multiple Airlines
Find Deal
Thu, Feb 19 - Sun, Feb 22
Spirit Airlines Logo
12:15 pm - 12:27 pmEYW-SJU
23h 12m2 stops
Spirit Airlines Logo
2:59 am - 1:30 pmSJU-EYW
11h 31m2 stops
$354Spirit Airlines
Find Deal
Fri, Jan 16 - Sun, Jan 25
Spirit Airlines Logo
2:25 pm - 11:33 pmEYW-SJU
32h 08m3 stops
Spirit Airlines Logo
8:05 pm - 1:30 pmSJU-EYW
18h 25m2 stops
$357Spirit Airlines
Find Deal
Sat, Feb 14 - Sun, Feb 22
American Airlines Logo
7:35 pm - 10:07 amEYW-SJU
13h 32m1 stop
American Airlines Logo
7:00 am - 1:06 pmSJU-EYW
7h 06m1 stop
$365American Airlines
Find Deal
Fri, Jan 16 - Sun, Jan 25
American Airlines Logo
12:00 pm - 11:59 pmEYW-SJU
10h 59m1 stop
American Airlines Logo
6:00 am - 4:49 pmSJU-EYW
11h 49m1 stop
$385American Airlines
Find Deal
Fri, Jan 16 - Sun, Jan 25
Spirit Airlines Logo
2:25 pm - 11:33 pmEYW-SJU
32h 08m3 stops
Spirit Airlines Logo
10:52 am - 1:30 pmSJU-EYW
27h 38m3 stops
$392Spirit Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Key West to Puerto Rico flights

Get data-powered insights and trends into flights from Key West to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Key West and Puerto Rico?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Key West to Puerto Rico.

There is just one airline that flies from Key West to Puerto Rico direct and that is American Airlines. The best round-trip deal found from American Airlines for the route is to San Juan Luis Munoz Marin Intl Airport (SJU) and costs $360.

Good to know

Cheapest flight$134
Flight from Key West to San Juan

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Key West to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Key West to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Key West to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Key West to Puerto Rico is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Key West to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Key West to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Key West to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Key West to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally in the morning, when round-trip flights cost $404 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally in the evening, which is peak travel time and where the average cost of a ticket is $448.

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.
7.2
American AirlinesOverall score based on 11045 reviews
7.5Boarding
8.0Crew
6.9Entertainment
6.5Food
7.2Comfort
Airline reviews

I appreciated that it was on time, safe and professional. I didn’t like that I wasn’t in a place where I had a window at my window seat. It would have been nice to know that in advance. If it was mentioned in the ticketing, I didn’t notice it.

8.0 ExcellentJolene, Dec 2025GNV - DFW
Read more American Airlines reviews

I appreciated that it was on time, safe and professional. I didn’t like that I wasn’t in a place where I had a window at my window seat. It would have been nice to know that in advance. If it was mentioned in the ticketing, I didn’t notice it.

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so didn't have any food

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

My flight was delayed for 17hs because the pilot forgot his passport!!! What a joke. AA used to be a great airline, now I have to think twice before flying with them again.

We had 3 flights. 1 & 2 were on the same plane but we had to de-board just to re-board 30 mins later. That may have been due to a crew change though. Our 3rd flight had a couple “maintenance” issues that held us up. They were quickly resolved but it took forever for someone to bring the paperwork needed so we could leave. Apparently there was a computer glitch so a driver had to bring a physical copy. It delayed us about 1 1/2 hrs. The flights themselves were smooth & no problems. For boarding, I don’t know why they don’t start with the back of the plane & move forward. It would eliminate the back up from people trying to find their seats & put their bags in the overhead bins. Unless you’re on an overseas flight, there is no food, you get a beverage & either a small bag of pretzels or a biscuit cookie. Take your own food or snacks of you want something more.

Lost bag and 2 days no word leaving for cruise no clothes or stuff

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

Internet was a bit expensive and did not work ask that week otherwise a good flight

Everything you need to know for your flight from Key West to Puerto Rico

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