Low cost flights to Puerto Rico (US) - full list of cheap airlines
 
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Fly low cost from Puerto Rico (US)

Low cost carriers in Puerto Rico (US)

Aeromexico airlines has 447 flights from Puerto Rico (US)
AirTran airlines has 50 flights from Puerto Rico (US)
Avianca airlines has 3 flights from Puerto Rico (US)
Brussels Airlines airlines has 1 flight from Puerto Rico (US)
Cape Air airlines has 13 flights from Puerto Rico (US)
JetBlue airlines has 116 flights from Puerto Rico (US)
LATAM airlines has 20 flights from Puerto Rico (US)
Liat airlines has 6 flights from Puerto Rico (US)
Southwest Airlines airlines has 102 flights from Puerto Rico (US)
Spirit airlines has 63 flights from Puerto Rico (US)
Sun Country airlines has 1 flight from Puerto Rico (US)
Thomas Cook airlines has 1 flight from Puerto Rico (US)
United Airlines airlines has 2 flights from Puerto Rico (US)
Virgin Atlantic airlines has 4 flights from Puerto Rico (US)

Tips for Flying > Before departure

Verify delays online: Usually, if one low-cost flight is late, it causes all the subsequent flights made with that particular airplane to be delayed. This is due to the fact that low-cost airlines prefer to have short waiting times (between 25 minutes and 2 hours) between flights. So if the flight before yours is late, your flight may even have a 1 or 2-hour delay. You can check the estimated departure/arrival time online, either on the website of the airport (for most airports) or on the website of the airline (for all major airlines).