Cheap flights from Illinois to Costa Rica from $127
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Costa Rica departing on 10/27. 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 Illinois 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 month to fly to Costa Rica?
The cheapest month to fly to Costa Rica from Illinois is in July. Flight prices, which tend to average around $449, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in July, then September is your next best option. Flight prices from Illinois to Costa Rica during September average around $553.
What is the cheapest day to depart on your flight to Costa Rica?
According to our data, Tuesday is the cheapest day to fly to Costa Rica from Illinois. The lowest ticket price found for a Tuesday departure recently was $581. 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 Saturday because tickets tend to average around $822. 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 evening is the cheapest time of day to fly from Illinois to Costa Rica when you can find flight prices for as low as $436. Flying to Costa Rica in the evening is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $771. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Illinois to Costa Rica flight route?
Fly from Chicago O'Hare Intl to San José Juan Santamaria Intl for the best Illinois - Costa Rica flight prices
How far in advance should I book a flight to Costa Rica?
You are more likely to see cheaper flights to Costa Rica from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $598 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Illinois for as low as $468 on momondo.
What cabin class options are available on Illinois to Costa Rica flights?
There are 3 cabin classes available to choose from on Illinois to Costa Rica flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Illinois to Costa Rica?
Southwest, American Airlines, and Spirit Airlines are the most popular carriers operating from Illinois to Costa Rica
What airlines fly to Costa Rica?
United Airlines, American Airlines and Spirit Airlines are the top three most popular airlines that fly to Costa Rica from Illinois according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 8 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Costa Rica on average per week?
As of June 2025, there are 2 flights per week flying from Illinois to Costa Rica. The most common day of the week flights depart is Wed, with 50% of flights taking off on this day.
Cheap Illinois to Costa Rica flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Costa Rica
Best Price Found | $127 |
|---|---|
Fastest flight time | 5h 01m |
Direct flights | Every day |
Airports in Costa Rica | 2 airports |
When did momondo last update prices for flights from Illinois to Costa Rica?
Prices for flights from Illinois to Costa Rica are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Costa Rica?
As of June 2025, there are 8 operators available to choose from for flights from Illinois to Costa Rica.
How old do you have to be to fly from Illinois to Costa Rica?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois 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.
What is the most popular plane model from Illinois to Costa Rica?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Costa Rica is Boeing 737 MAX 8, representing 52.67% of all bookings. The subsequent popular models are Boeing 737-900 at 30.58%, Boeing 737-800 at 10.44%, and Boeing 737 MAX 9 at 4.61%.
Best airlines flying from Illinois to Costa Rica
Compare and see reviews for airlines that fly from Illinois to Costa Rica with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $273 | Free Cancellation | Rating 6.3 8,088 reviews | |||
| PriceFrom $317 | Free Cancellation | Rating 6.7 2,355 reviews | |||
| PriceFrom $345 | Free Cancellation | Rating 7.3 2,922 reviews | |||
| PriceFrom $371 | Free Cancellation | Rating 7.5 1,460 reviews | |||
| PriceFrom $408 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $445 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $479 | Free Cancellation | Rating 8.0 4,276 reviews | |||
| PriceFrom $482 | Free Cancellation | Rating 7.4 8,838 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois 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 Illinois.
Can I find flights from Illinois to Costa Rica with flexible booking policies on momondo?
Yes. All flights to Costa Rica from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Illinois to Costa Rica?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Costa Rica from Illinois.
I’m not ready to book a flight from Illinois to Costa Rica right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Costa Rica from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.