Cheap flights from Key West to San Juan

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Planning a flight from Key West to San Juan?

Flight prices from Key West to San Juan change depending on demand and time of booking.

Choose a date to explore the best fares now.

Many users find better fares by booking several weeks in advance. In fact, for many routes, booking early is one of the best ways to save.

Which airports serve Key West and San Juan?

When planning a trip of about 1765 km, it's a good idea to check flights from surrounding airports too.

  • Airports in Key West: Key West - International is the only operational airport in the area.
  • Airports in San Juan: Another nearby option is Isla Grande.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Flights from Key West - International to San Juan - Luis Muñoz Marín

Plan smarter: flights from Key West to San Juan

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to Puerto Rico also checked out: Aguadilla, Culebra Airport, Ponce, San Juan, Vieques Airport.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.
Frequently Asked Questions

Frequently asked questions about flights from Key West to San Juan.

How much does an airline ticket from Key West to San Juan cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Key West to San Juan.

How far is Key West from San Juan?

Key West is about 1765 km from San Juan.

What are the airports in San Juan?

San Juan has another airport: Isla Grande.

What are the airports in Key West?

Key West has one airport: Key West - International.

What are the most popular cities in Puerto Rico?

The most popular cities in Puerto Rico according to our users' searches are: Aguadilla, Culebra Airport, Ponce, San Juan, Vieques Airport.

When should I book a flight from Key West to San Juan?

This information is not available at the moment.

What is the cheapest month to fly from Key West to San Juan?

This information is not available at the moment.

What is the most expensive month to fly from Key West to San Juan?

This information is not available at the moment.

What is the best day of the week to fly from Key West to San Juan?

This information is not available at the moment.