Cheap flights from Key West to Costa Rica from $478
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Costa Rica departing on 10/7. 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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American Airlines flights from Key West to Costa Rica
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How to get the cheapest flight ticket from Key West to Costa Rica
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 day to depart on your flight to Costa Rica?
According to our data, Thursday is the cheapest day to fly to Costa Rica from Key West. The lowest ticket price found for a Thursday departure recently was $554. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $769. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.
What is the cheapest time of day to depart on your flight to Costa Rica?
In the afternoon is the cheapest time of day to fly from Key West to Costa Rica when you can find flight prices for as low as $584. Flying to Costa Rica in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly at noon, with an average ticket price of $764. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
Cheap Key West to Costa Rica flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Key West to Costa Rica
When did momondo last update prices for flights from Key West Airport to Costa Rica?
Prices for flights from Key West Airport to Costa Rica refresh daily.
How many operators does momondo search for flights from Key West Airport to Costa Rica?
As of June 2025, there is 1 operator available to choose from for flights from Key West Airport to Costa Rica.
How old do you have to be to fly from Key West Airport to Costa Rica?
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 Key West Airport to Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The travel and health documents you'll need for your trip to Costa Rica may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Costa Rica. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Key West to Costa Rica
Compare and see reviews for airlines that fly from Key West to Costa Rica with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $535 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Key West to Costa Rica?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Costa Rica from Key West.
Can I find flights from Key West to Costa Rica with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Key West to Costa Rica flights to just show those with flexible booking policies.
How can momondo help me find flights from Key West to Costa Rica?
momondo helps you find the best flight between Key West and Costa Rica by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Key West to Costa Rica right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Costa Rica, momondo offers a useful price alert feature which will track prices for flights to Costa Rica from Key West and alert you when they change.