HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$319+ Cheap flights from Key West (EYW) to San Juan

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — SJU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key West to San Juan 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 Key West to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$319
(Delta)

One-way from

$319
(JetBlue)
From Key West to San Juan
Search Deals
One-way flight from Key West to San Juan
Search Deals

Find flight deals from Key West to San Juan

Cheapest flights from Key West to San Juan
Explore the most affordable flight options available from Key West to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/12. 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.
Wed 10/17:00 amEYW - SJU
1 stop6h 23mDelta
Mon 10/67:30 amSJU - EYW
1 stop9h 42mDelta
Deal found 6/12$319
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 10/111:25 amEYW - SJU
1 stop6h 49mAmerican Airlines
Mon 10/612:00 pmSJU - EYW
1 stop7h 07mAmerican Airlines
Deal found 6/11$365
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Thu 6/2610:12 amEYW - SJU
1 stop15h 19mMultiple Airlines
Sun 6/292:36 amSJU - EYW
1 stop10h 41mMultiple Airlines
Deal found 6/11$494
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 10/18:45 amEYW - SJU
2 stops15h 12mUnited Airlines
Sun 10/51:05 amSJU - EYW
2 stops30h 55mUnited Airlines
Deal found 6/11$714

Cheapflights Fare Finder

Customize your flight search to find flights from Key West to San Juan 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 June 12, 2025.
Use the filters below to find and compare flights from Key West to San Juan that are best for you.

Fly from

Key West

Fly to

San Juan

Route

Depart

Return

Price

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 10/1

7:00 am-1:23 pm

1 stop6h 23m

San Juan Luis Munoz Marin Intl

Mon 10/6

7:30 am-5:12 pm

1 stop9h 42m

$319

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 10/1

6:17 pm-12:46 pm

2 stops18h 29m

San Juan Luis Munoz Marin Intl

Mon 10/6

5:27 pm-11:17 am

2 stops17h 50m

$365

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Thu 6/26

10:12 am-1:31 am

1 stop15h 19m

San Juan Luis Munoz Marin Intl

Sun 6/29

2:36 am-1:17 pm

1 stop10h 41m

$494

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 10/1

8:45 am-11:57 pm

2 stops15h 12m

San Juan Luis Munoz Marin Intl

Sun 10/5

1:05 am-8:00 am

2 stops30h 55m

$714

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 6/22

8:45 am-4:02 pm

1 stop7h 17m

$319

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 6/17

11:20 am-6:05 pm

1 stop6h 45m

$323

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 6/22

2:07 pm-7:19 pm

2 stops29h 12m

$365

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 6/17

2:12 pm-5:30 pm

3 stops27h 18m

$999

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Key West to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan 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 San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, 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 San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
JetBlue
7.3
Good
2,925 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

Find useful and relevant information for your journey from Key West to San Juan. 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 San Juan?

    Located just 2.6 mi from the city center, Key West is the airport most travelers will use when flying to San Juan from Key West. Booking flights from Key West (EYW) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 1 airline.

  • What are the cheapest airlines flying from Key West to San Juan round-trip?

    Cheapflights users have booked flights from Key West to San Juan round-trip from $319. Other airlines that can offer you cheap pricing are American Airlines, from $365, and United Airlines, from $714.

  • What are the cheapest airlines to fly from Key West to San Juan one-way?

    The cheapest airlines for a one-way flight from Key West to San Juan are JetBlue ($319), American Airlines ($323), and United Airlines ($999).

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

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

  • How can I find direct flights from Key West to San Juan?

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

  • Can I find deals for business class flights from Key West to San Juan?

    Yes. Cheapflights offers flight deals from Key West to San Juan 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 San Juan?

    Currently, September is the cheapest month in which you can book a flight from Key West to San Juan (average of $254). Flying from Key West to San Juan in June is currently the most expensive (average of $339). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key West to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Orlando to Luis Munoz Marin Intl flights
Fort Lauderdale to Luis Munoz Marin Intl flights
Miami to Luis Munoz Marin Intl flights
Tampa to Luis Munoz Marin Intl flights
Orlando to Ponce flights
Orlando to Aguadilla flights
Jacksonville to Luis Munoz Marin Intl flights
West Palm Beach to Luis Munoz Marin Intl flights
Pensacola to Luis Munoz Marin Intl flights
Fort Myers to Luis Munoz Marin Intl flights
Fort Lauderdale to Aguadilla flights
Sarasota to Luis Munoz Marin Intl flights
Panama City to Luis Munoz Marin Intl flights
Tallahassee to Luis Munoz Marin Intl flights
Daytona Beach to Luis Munoz Marin Intl flights
Valparaiso to Luis Munoz Marin Intl flights
Tampa to Aguadilla flights
Melbourne to Luis Munoz Marin Intl flights
Tampa to Ponce flights
Orlando Sanford Intl to Luis Munoz Marin Intl flights
Gainesville to Luis Munoz Marin Intl flights
Orlando to Culebra flights
Miami to Aguadilla flights
Orlando to Mayagüez flights
Tampa to Culebra flights
Miami to Vieques flights
Key West to Luis Munoz Marin Intl flights
Orlando to Vieques flights
Miami to Culebra flights
Jacksonville to Aguadilla flights
Miami to Mayagüez flights
Tampa to Mayagüez flights
Fort Lauderdale to Ponce flights
Fort Myers to Aguadilla flights
Jacksonville to Vieques flights
Fort Lauderdale to Vieques flights
Jacksonville to Culebra flights
Fort Lauderdale to Culebra flights
Fort Myers to Mayagüez flights
Pensacola to Vieques flights
Fort Lauderdale to Mayagüez flights
Pensacola to Ponce flights
Pensacola to Aguadilla flights

Top airline flying from Key West to San Juan

Discover the top airline that operate flights from Key West to San Juan. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$246Average$448FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.