Cheap flight tickets from St Louis to Aguadilla

Compare St Louis to Aguadilla flight deals

Find the cheapest month or even day of the year to fly to Aguadilla

Book the best Aguadilla fare with no extra fees

Flight deals from St Louis to Aguadilla

Looking for a cheap last-minute deal or the best return flight from St Louis to Aguadilla? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Aguadilla

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Aguadilla flights are currently cheapest in February.

St Louis to Aguadilla: Alternative routes

Compare routes from St Louis to Aguadilla below. You may find an airport to fly into that's cheaper, faster, or easier than Aguadilla.

St Louis to Aguadilla: Flight information

The things to know before you go.
Cheapest flight foundRM1,494
Cheapest month to flyFebruary

Finding cheap flights from St Louis to Aguadilla: Frequently asked questions

The best price we found for a return flight from St Louis to Aguadilla is RM1,494. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Aguadilla. But we found flights with one or more stops from RM1,494.
As of February 2026, there are no flights flying from St Louis to Aguadilla.
The cheapest month to fly from St Louis to Aguadilla is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Aguadilla Airport on Tuesday, 24 February 2026.
No airlines currently offer direct flights between St Louis Airport and Aguadilla Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Aguadilla but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Aguadilla is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Aguadilla.

Travelling from Lambert-St. Louis International Airport (STL) to Rafael Hernandez Airport (BQN): what you need to know

  • The timezone in Aguadilla is UTC-4, which is one hour ahead of St Louis.

  • Arrive at the airport on time so you don't miss your STL to BQN flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • Travelling during a peak month like July? Public holidays and other popular periods can mean longer queues at check-in and security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • Take a detour to a new city or break up your flight with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Lambert-St. Louis International Airport to Rafael Hernandez Airport. Many travellers pass through Orlando International Airport on this route.

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Rafael Hernandez Airport (BQN)

  • Right now, RM936 is the lowest price we've seen for a one-way Lambert-St. Louis International Airport to Rafael Hernandez Airport flight. The best price for a return ticket is RM1,494. Bear in mind that fares may change due to availability at the time of booking.

  • It's usually smart to book as early as possible if you want to get cheap tickets from STL to BQN. That's because flight prices are based on demand, which tends to rise closer to the date of departure.

  • If you're flexible with your travel dates, use the 'Whole month' search tool. It'll show you the lowest price in every month when searching for your flight from Lambert-St. Louis International Airport to Rafael Hernandez Airport.

  • Save time looking for cheap flights from STL to BQN by creating a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.

  • Select your ideal arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Lambert-St. Louis International Airport to Rafael Hernandez Airport.

Handy information about Lambert-St. Louis International Airport (STL)

Arriving at Rafael Hernandez Airport (BQN)

  • The last thing you want is a lengthy journey to your hotel if you're getting in late on a Lambert-St. Louis International Airport to Rafael Hernandez Airport flight. Stay at one of these accommodation options near BQN instead:

  • Fast-track your adventure by picking up a Rafael Hernandez Airport rental car. Grab a set of wheels from Sixt, Final Rentals or Ace Rent a Car to explore Aguadilla and beyond.

  • Reserving your vehicle from Rafael Hernandez Airport about three weeks ahead gives you the best chance of locking in a great deal.

Getting from Rafael Hernandez Airport (BQN) to central Aguadilla

  • Rafael Hernandez Airport is roughly 10 kilometres from central Aguadilla. Driving there takes about 20 minutes.

When to fly to Rafael Hernandez Airport (BQN)

  • It's time to work out your dates for your flight from Lambert-St. Louis International Airport to Rafael Hernandez Airport. April is the busiest month to head to Aguadilla. If you're after a more low-key vibe, go in May.

  • When booking your flight from Lambert-St. Louis International Airport to Rafael Hernandez Airport, consider the kind of weather you like. August is the warmest month in Aguadilla, with the temperature ranging from 25ºC (77ºF) to 31ºC (88ºF).

  • March has average temperatures of between 20ºC (68ºF) and 29ºC (84ºF). Look for cheap tickets from STL to BQN sometime around then if you want to travel when it's cooler.

Explore more of Puerto Rico

  • Aguadilla is always a good idea, but there are so many other corners of Puerto Rico you'll want to see. About 113 kilometres east of Aguadilla, a trip to San Juan will keep your itinerary packed. Don't miss top attractions like Castillo San Felipe del Morro, La Garita del morro de san juan bahia and Fortaleza Street.

  • Around 105 kilometres east of Aguadilla, Bayamon is another favourite stop in Puerto Rico. Experience this destination's highlights firsthand at Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña, Monumento a los Trovadores and Parque Palm Court.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.