SJO

$145 Find Cheap Flights from Illinois to San José - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San José departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Illinois to San José

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to San José that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to San José

Tue, Sep 15 - Tue, Sep 22
Delta Logo
6:00 am - 11:54 am
MLI
-
SJO
6h 54m
1 stop
Delta Logo
1:19 pm - 10:30 pm
SJO
-
MLI
8h 11m
1 stop
$422Delta
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
4:57 pm - 12:59 pm
MLI
-
SJO
21h 02m
2 stops
American Airlines Logo
2:57 pm - 11:38 am
SJO
-
MLI
19h 41m
2 stops
$427American Airlines
Mon, Sep 21 - Fri, Sep 25
American Airlines Logo
4:24 pm - 8:07 pm
BMI
-
SJO
28h 43m
2 stops
American Airlines Logo
1:00 pm - 12:49 pm
SJO
-
BMI
22h 49m
2 stops
$444American Airlines
Mon, Sep 14 - Mon, Sep 21
Southwest Logo
5:00 am - 12:45 pm
MDW
-
SJO
8h 45m
1 stop
Southwest Logo
1:40 pm - 10:20 pm
SJO
-
MDW
7h 40m
1 stop
$478Southwest
Fri, Sep 18 - Sun, Sep 20
United Airlines Logo
6:15 am - 12:21 pm
STL
-
SJO
7h 06m
1 stop
United Airlines Logo
7:55 am - 10:30 pm
SJO
-
STL
13h 35m
1 stop
$482United Airlines
Fri, Oct 23 - Sat, Oct 31
Multiple Airlines Logo
8:34 pm - 7:30 am
STL
-
SJO
11h 56m
1 stop
Multiple Airlines Logo
8:55 am - 10:40 am
SJO
-
STL
24h 45m
2 stops
$482Multiple Airlines
Wed, Oct 28 - Thu, Nov 12
Southwest Logo
5:45 am - 12:05 pm
MDW
-
SJO
7h 20m
1 stop
Southwest Logo
1:20 pm - 10:55 pm
SJO
-
MDW
9h 35m
1 stop
$484Southwest
Wed, Oct 21 - Thu, Oct 29
Viva Logo
4:20 pm - 12:15 pm
ORD
-
SJO
20h 55m
1 stop
Viva Logo
1:15 pm - 1:10 pm
SJO
-
ORD
22h 55m
1 stop
$492Viva
Sun, Sep 13 - Mon, Sep 21
Delta Logo
6:00 am - 11:54 am
STL
-
SJO
6h 54m
1 stop
Delta Logo
1:19 pm - 11:42 pm
SJO
-
STL
9h 23m
1 stop
$496Delta
Fri, Jan 22 - Thu, Jan 28
United Airlines Logo
7:39 am - 12:56 pm
ORD
-
SJO
5h 17mnonstop
United Airlines Logo
2:05 pm - 7:35 pm
SJO
-
ORD
5h 30mnonstop
$518United Airlines
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Good to know

Low season

September

Cheapest flight

$145
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Chicago O'Hare Airport to San José

FAQs for booking flights from Illinois to San José

  • How does KAYAK find such low prices on flights from Illinois to San José?

    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 San José.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from Illinois 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 San José?

    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 to San José with an airline and back to Illinois with another airline.

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

    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 to San José from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Heredia
Santa Elena
San Gerardo de Dota
Esterillos Este
San Lorenzo

Everything you need to know for your flight to San José

Information on the airport you'll fly into in San José

San José (SJO)