Cheap flights from Puerto Rico to St. Louis from $89

In general, January is the cheapest month to fly from Puerto Rico to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $264. The month of October is another great option to travel to St. Louis, with average flight prices from Puerto Rico averaging around $316.

Flying to St. Louis from Puerto Rico in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $739 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $823 per ticket.

Fly from San Juan Luis Munoz Marin Intl to Lambert-St Louis for the best Puerto Rico - Lambert-St Louis flight prices

You are more likely to see cheaper flights to St. Louis from Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Puerto Rico for as low as $168 on momondo.

There is only 1 cabin class available to choose from on Puerto Rico to St. Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Puerto Rico to St. Louis.

United Airlines, Southwest, and Delta are the most popular carriers operating from Puerto Rico to Lambert-St Louis

American Airlines, Southwest and Frontier are the top three most popular airlines that fly to St. Louis from Puerto Rico according to our data. American Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.