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$263+ Cheap flights from Key West (EYW) to Puerto Rico

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — SJU
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Key West to Puerto Rico

Keep the following information in mind while searching for Key West to Puerto Rico flight deals. Data was last updated March 28, 2025.

Round-trip from

$454
(Mytrip)

One-way from

$263
(JetBlue)
From Key West to Puerto Rico
Search Deals
One-way flight from Key West to Puerto Rico
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Find flight deals from Key West to Puerto Rico

Cheapest flights from Key West to Puerto Rico
Explore the most affordable flight options available from Key West to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/274:24 pmEYW - SJU
2 stops23h 11mMultiple Airlines
Sat 5/39:32 amSJU - EYW
2 stops30h 02mMultiple Airlines
Deal found 3/27$454
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/1111:39 amEYW - SJU
1 stop8h 41mAmerican Airlines
Tue 4/156:05 amSJU - EYW
1 stop10h 11mAmerican Airlines
Deal found 3/27$480
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Fri 4/118:45 amEYW - SJU
2 stops30h 55mUnited Airlines
Tue 4/157:00 amSJU - EYW
2 stops25h 00mUnited Airlines
Deal found 3/27$619

Cheapflights Fare Finder

Customize your flight search to find flights from Key West to Puerto Rico 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 March 28, 2025.
Use the filters below to find and compare flights from Key West to Puerto Rico that are best for you.

Fly from

Key West

Fly to

Puerto Rico

Route

Depart

Return

Price

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 4/27

4:24 pm-3:35 pm

2 stops23h 11m

San Juan Luis Munoz Marin Intl

Sat 5/3

9:32 am-3:34 pm

2 stops30h 02m

$454

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Fri 4/11

11:39 am-8:20 pm

1 stop8h 41m

San Juan Luis Munoz Marin Intl

Tue 4/15

6:05 am-4:16 pm

1 stop10h 11m

$480

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Fri 4/11

8:45 am-3:40 pm

2 stops30h 55m

San Juan Luis Munoz Marin Intl

Tue 4/15

7:00 am-8:00 am

2 stops25h 00m

$619

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 4/6

8:45 am-2:36 pm

1 stop5h 51m

$263

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 4/6

8:45 am-8:38 pm

2 stops35h 53m

$400

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 4/6

7:29 pm-5:14 pm

1 stop21h 45m

$733

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Best time to book a flight from Key West to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Key West with our price prediction graph.
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 Key West to Puerto Rico

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Puerto Rico when rainfall is around 2.2 in.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated March 28, 2025.
United Airlines
7.4
Good
8,603 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.0

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,603 reviews
United Airlines
7.4
Good
8,603 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.0

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.3
Good
2,923 reviews
United Airlines
7.4
Good
8,603 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.0

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,603 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.0

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Key West to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Key West to Puerto Rico?

    If you book a flight to Puerto Rico from Key West, you will be flying from Key West, which is the city’s only airport. Key West (EYW) is located 2.6 mi from the center of Key West.

  • What are the cheapest airlines to fly from Key West to Puerto Rico one-way?

    One-way options have recently been found by users for as low as $263 on JetBlue. Other airlines that offer cheap prices include United Airlines from $400 and American Airlines from $733 one-way.

  • Can I find deals for flights from Key West to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Key West to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key West to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key West to Puerto Rico.

  • Can I find deals for business class flights from Key West to Puerto Rico?

    Yes. Cheapflights offers flight deals from Key West to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Key West to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Key West to Puerto Rico (average of $254). Flying from Key West to Puerto Rico in December is currently the most expensive (average of $336). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Key West to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Key West to Puerto Rico

Discover the top airline that operate flights from Key West to Puerto Rico. 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 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$246Average$448FlexibilityNo cancel feeOn-time71%
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