Cheap flights from Costa Rica to St. Louis from $146
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Costa Rica to St. Louis departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Costa Rica to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, February is the cheapest month to fly from Costa Rica to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $397. The month of August is another great option to travel to St. Louis, with average flight prices from Costa Rica averaging around $407.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $420. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $690. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Costa Rica in the morning is the least expensive time of day to depart. momondo users have found prices as low as $479 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $561 per ticket.
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from Costa Rica when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $485 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Costa Rica for as low as $292 on momondo.
Cheap Costa Rica to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Costa Rica to St. Louis
When did momondo last update prices for flights from Costa Rica to Lambert-St Louis Airport?
Prices for flights from Costa Rica to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Costa Rica to Lambert-St Louis Airport?
There are 2 operators available for flights from Costa Rica to Lambert-St Louis Airport as of July 2025.
How old do you have to be to fly from Costa Rica to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Costa Rica to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Costa Rica to St. Louis
Compare and see reviews for airlines that fly from Costa Rica to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $328 | Free Cancellation | Rating 7.4 8,842 reviews | |||
| PriceFrom $334 | Free Cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from Costa Rica to St. Louis?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Costa Rica to St. Louis. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Costa Rica to St. Louis with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Costa Rica to St. Louis flights to just show those with flexible booking policies.
How can momondo help me find flights from Costa Rica to St. Louis?
momondo provides multiple filters to help you find the best flight to St. Louis from Costa Rica. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Costa Rica to St. Louis right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Costa Rica to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.