$111 Find Cheap Flights from Illinois to Costa Rica

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Useful Info

Good to know

Low seasonSeptember
High seasonDecember
Cheapest flight$111
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 49% increase in price.
Flight from Chicago Midway Airport to San José

FAQs for booking flights from Illinois to Costa Rica

  • How does KAYAK find such low prices on flights from Illinois to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Costa Rica is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Illinois to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Costa Rica?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Costa Rica is San José Juan Santamaria Intl Airport (SJO), with an average flight price of $267.

  • What is the cheapest day to fly to Costa Rica?

    Based on KAYAK data, the cheapest day to fly to Costa Rica is Tuesday where round-trip tickets can be as cheap as $581. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $820 on average.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally at night, when round-trip flights cost $436 on average. Morning departures are around 35% more expensive than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the morning, which is peak travel time and where the average cost of a ticket is $769.

  • What is the cheapest flight to Costa Rica?

    The cheapest ticket to Costa Rica from Illinois found in the last 72 hours was to Liberia, at $430 round-trip. The most popular route is Chicago O'Hare Intl Airport (ORD) to San José (SJO) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $441.

  • What is the cheapest month to fly from Illinois to Costa Rica?

    The cheapest month for flights from Illinois to Costa Rica is May, when tickets cost $672 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $1,146 and $916 respectively.

  • How far in advance should I book a flight from Illinois to Costa Rica?

    To get a below average price on the flight from Illinois to Costa Rica, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

  • How long is the flight to Costa Rica?

    An average nonstop flight from Illinois to Costa Rica takes 7h 50m, covering a distance of 2126 miles. The shortest route is Chicago O'Hare Intl Airport (ORD) to Liberia (LIR) with an average flight time of 5h 01m.

  • What are the most popular destinations in Costa Rica?

    Based on KAYAK flight searches, the most popular destination is San José (65% of total searches to Costa Rica). The next most popular destination is Liberia (35%).

Book cheap flights from Illinois to Costa Rica

Recent round-trip flight deals

8/17Sun
1 stopAmerican Airlines
8h 48mSTL-SJO
8/22Fri
1 stopAmerican Airlines
8h 10mSJO-STL
$262
11/18Tue
1 stopAmerican Airlines
9h 01mSTL-SJO
11/25Tue
1 stopAmerican Airlines
14h 41mSJO-STL
$265
9/1Mon
1 stopDelta
7h 00mSTL-LIR
9/5Fri
1 stopDelta
7h 37mLIR-STL
$287
10/5Sun
2 stopsSpirit Airlines
24h 38mORD-SJO
10/18Sat
2 stopsSpirit Airlines
22h 45mSJO-ORD
$292
11/27Thu
1 stopDelta
13h 45mSTL-SJO
12/5Fri
1 stopDelta
16h 39mSJO-STL
$294
8/31Sun
1 stopUnited Airlines
7h 11mSTL-SJO
9/4Thu
1 stopUnited Airlines
7h 38mSJO-STL
$295
8/2Sat
1 stopSpirit Airlines
7h 06mORD-SJO
8/6Wed
1 stopSpirit Airlines
9h 57mSJO-ORD
$297
8/31Sun
1 stopUnited Airlines
7h 11mSTL-SJO
9/5Fri
1 stopUnited Airlines
7h 38mSJO-STL
$301
10/24Fri
1 stopSouthwest
7h 55mSTL-SJO
11/2Sun
1 stopSouthwest
8h 35mSJO-STL
$302
8/26Tue
1 stopSouthwest
6h 35mSTL-SJO
8/30Sat
1 stopSouthwest
11h 55mSJO-STL
$318

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Recent one-way flight deals

8/9Sat
1 stopFrontier
7h 11mMDW-SJO
$111
8/19Tue
1 stopSouthwest
8h 20mSTL-SJO
$115
8/19Tue
2 stopsAmerican Airlines
10h 32mSTL-SJO
$117
8/23Sat
1 stopAmerican Airlines
21h 43mSTL-SJO
$127
8/6Wed
1 stopSpirit Airlines
7h 06mORD-SJO
$127
10/25Sat
1 stopSpirit Airlines
18h 01mORD-SJO
$130
10/20Mon
2 stops
30h 18mMDW-SJO
$135
10/6Mon
2 stops
20h 11mORD-SJO
$137
9/17Wed
1 stopJetBlue
24h 26mORD-SJO
$149
8/9Sat
1 stopJetBlue
25h 45mORD-LIR
$244

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Last minute flights from Illinois to Costa Rica

Last minute flight, train and bus deals

7/15Tue
multi-stopAvianca
15h 15mORD-SJO
7/21Mon
multi-stopAvianca
34h 20mSJO-ORD
$369
7/15Tue
multi-stopAvianca
15h 15mORD-SJO
7/21Mon
multi-stopAvianca
34h 20mSJO-ORD
$410
7/15Tue
multi-stopSpirit Airlines
7h 06mORD-SJO
7/22Tue
multi-stopSpirit Airlines
10h 47mSJO-ORD
$445
7/15Tue
multi-stopAmerican Airlines
9h 45mORD-LIR
7/22Tue
multi-stopAmerican Airlines
8h 52mLIR-ORD
$463
7/15Tue
multi-stopCopa Airlines
8h 13mORD-SJO
7/23Wed
multi-stopCopa Airlines
15h 11mSJO-ORD
$464
7/15Tue
multi-stopAmerican Airlines
7h 15mORD-LIR
7/22Tue
multi-stopAmerican Airlines
11h 14mLIR-ORD
$467
7/15Tue
multi-stop
14h 48mORD-SJO
7/22Tue
multi-stop
10h 47mSJO-ORD
$467
7/14Mon
multi-stop
24h 41mORD-SJO
7/18Fri
multi-stop
19h 20mSJO-ORD
$470
7/14Mon
multi-stopSpirit Airlines
25h 29mORD-SJO
7/21Mon
multi-stopSpirit Airlines
19h 39mSJO-ORD
$501
7/14Mon
multi-stopCopa Airlines
13h 49mORD-SJO
7/22Tue
multi-stopCopa Airlines
18h 35mSJO-ORD
$535

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Everything you need to know for your flight to Costa Rica

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Costa Ricafrom $905
Business Class flights to Costa Ricafrom $1,174
Prem Econ Class flights to Costa Ricafrom $1,344
Economy Class flights to Costa Ricafrom $430

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