What is the cheapest airline that flies from Illinois to San José Juan Santamaria Intl?

American Airlines, Delta, and Spirit Airlines are the most popular carriers operating from Illinois to San José Juan Santamaria Intl

How long does it take to fly to San José?

The flight from Illinois to San José depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to San José (the most popular airport in San José), then the flight time is 5h 58m on average. If you fly from Moline (another popular airport in Illinois) to San José, then the average flight time is 14h 49m.

How many flights depart from Illinois to San José on average per week?

As of March 2026, there are 13 flights per week flying from Illinois to San José. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

What airlines fly to San José?

United Airlines, American Airlines and Spirit Airlines are the top three most popular airlines that fly to San José from Illinois according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San José. Keep in mind that there are 8 different airlines that fly to San José on a routine basis, so you have a few additional options to choose from.

How many flights depart from Illinois to San José on average per day?

1 flights are operational daily from Illinois to San José as of March 2026. The most popular departure time for this route is 7:00AM, with 50% of flights per day taking off at noon.

When did momondo last update prices for flights from Illinois to San José Juan Santamaria Intl Airport?

Prices for flights from Illinois to San José Juan Santamaria Intl Airport refresh daily.

How many operators does momondo search for flights from Illinois to San José Juan Santamaria Intl Airport?

As of March 2026, there are 8 operators available to choose from for flights from Illinois to San José Juan Santamaria Intl Airport.

How old do you have to be to fly from Illinois to San José Juan Santamaria Intl 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 Illinois to San José Juan Santamaria Intl Airport.

What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

The required travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$133 Cheap Flights from Illinois to San José in 2026

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Find the cheapest flights from Illinois to San José

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:41 pm - 1:08 pm

MLI

SJO

19h 27m

2 stops

12:10 pm - 12:27 pm

SJO

MLI

23h 17m

2 stops

$339American Airlines

sab, apr 18 - mar, apr 28

5:24 am - 7:07 pm

STL

SJO

14h 43m

1 stop

11:35 pm - 6:30 pm

SJO

STL

17h 55m

1 stop

$362American Airlines

mer, apr 29 - mer, mag 20

7:30 am - 11:33 am

ORD

SJO

29h 03m

2 stops

12:38 pm - 9:17 pm

SJO

ORD

31h 39m

1 stop

$363Multiple Airlines

sab, apr 25 - ven, mag 1

7:30 am - 11:33 am

ORD

SJO

29h 03m

2 stops

12:38 pm - 12:24 am

SJO

ORD

10h 46m

1 stop

$365Multiple Airlines

sab, mag 9 - gio, mag 14

5:05 am - 11:14 am

ORD

SJO

7h 09m

1 stop

11:38 am - 8:50 am

SJO

ORD

20h 12m

2 stops

$372Spirit Airlines

gio, apr 2 - lun, apr 13

7:41 pm - 8:45 am

MDW

SJO

14h 04m

1 stop

10:00 am - 7:00 am

SJO

MDW

20h 00m

2 stops

$373Frontier

gio, mag 28 - lun, giu 1

5:05 am - 11:14 am

ORD

SJO

7h 09m

1 stop

11:38 am - 8:50 am

SJO

ORD

20h 12m

2 stops

$376Spirit Airlines

mar, mar 31 - mar, apr 7

7:41 pm - 8:45 am

MDW

SJO

14h 04m

1 stop

10:00 am - 7:00 am

SJO

MDW

20h 00m

2 stops

$377Frontier

dom, mag 24 - lun, giu 1

6:00 am - 11:56 am

STL

SJO

6h 56m

1 stop

1:20 pm - 11:59 pm

SJO

STL

9h 39m

1 stop

$382Delta

dom, mag 3 - sab, mag 9

6:00 am - 1:15 pm

STL

SJO

8h 15m

1 stop

1:20 pm - 11:59 pm

SJO

STL

9h 39m

1 stop

$402Delta

sab, mag 9 - mer, mag 20

American Airlines flights from Illinois to San José

Our best American Airlines deals on Illinois to San José flight tickets

American Airlines

Apr 18

MLI6:41 pmMoline Quad-City

19h 27m

2 stops

SJO1:08 pmSan José Juan Santamaria Intl

Apr 28

SJO12:10 pmSan José Juan Santamaria Intl

23h 17m

2 stops

MLI12:27 pmMoline Quad-City

$339

American Airlines

Apr 29

STL5:24 amLambert-St Louis

14h 43m

1 stop

SJO7:07 pmSan José Juan Santamaria Intl

May 20

SJO11:35 pmSan José Juan Santamaria Intl

17h 55m

1 stop

STL6:30 pmLambert-St Louis

$362

American Airlines

Apr 29

STL5:51 amLambert-St Louis

14h 16m

2 stops

SJO7:07 pmSan José Juan Santamaria Intl

May 20

SJO6:30 amSan José Juan Santamaria Intl

14h 49m

2 stops

STL10:19 pmLambert-St Louis

$367

Spirit Airlines flights from Illinois to San José

Our best Spirit Airlines deals on Illinois to San José flight tickets

Spirit Airlines

Apr 2

ORD5:05 amChicago O'Hare Intl

7h 09m

1 stop

SJO11:14 amSan José Juan Santamaria Intl

Apr 13

SJO11:38 amSan José Juan Santamaria Intl

20h 12m

2 stops

ORD8:50 amChicago O'Hare Intl

$372

Spirit Airlines

Mar 31

ORD5:05 amChicago O'Hare Intl

7h 09m

1 stop

SJO11:14 amSan José Juan Santamaria Intl

Apr 7

SJO11:38 amSan José Juan Santamaria Intl

20h 12m

2 stops

ORD8:50 amChicago O'Hare Intl

$376

Spirit Airlines

Apr 22

ORD6:16 pmChicago O'Hare Intl

42h 17m

2 stops

SJO11:33 amSan José Juan Santamaria Intl

Apr 27

SJO12:38 pmSan José Juan Santamaria Intl

27h 33m

2 stops

ORD5:11 pmChicago O'Hare Intl

$377

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MolineSan José

MLI - SJO

MLISJO

Moline Quad-City

sab 4/18

6:41 pm-1:08 pm

2 stops19h 27m

San José Juan Santamaria Intl

mar 4/28

12:10 pm-12:27 pm

2 stops23h 17m

$339

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

mer 4/29

5:24 am-7:07 pm

1 stop14h 43m

San José Juan Santamaria Intl

mer 5/20

11:35 pm-6:30 pm

1 stop17h 55m

$362

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

sab 4/25

7:30 am-11:33 am

2 stops29h 03m

San José Juan Santamaria Intl

ven 5/1

12:38 pm-9:17 pm

1 stop31h 39m

$363

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

sab 5/9

7:30 am-11:33 am

2 stops29h 03m

San José Juan Santamaria Intl

gio 5/14

12:38 pm-12:24 am

1 stop10h 46m

$365

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

gio 4/2

5:05 am-11:14 am

1 stop7h 09m

San José Juan Santamaria Intl

lun 4/13

11:38 am-8:50 am

2 stops20h 12m

$372

ChicagoSan José

MDW - SJO

MDWSJO

Chicago Midway

gio 5/28

7:41 pm-8:45 am

1 stop14h 04m

San José Juan Santamaria Intl

lun 6/1

10:00 am-7:00 am

2 stops20h 00m

$373

ChicagoSan José

ORD - SJO

ORDSJO

Chicago O'Hare Intl

mar 3/31

5:05 am-11:14 am

1 stop7h 09m

San José Juan Santamaria Intl

mar 4/7

11:38 am-8:50 am

2 stops20h 12m

$376

ChicagoSan José

MDW - SJO

MDWSJO

Chicago Midway

dom 5/24

7:41 pm-8:45 am

1 stop14h 04m

San José Juan Santamaria Intl

lun 6/1

10:00 am-7:00 am

2 stops20h 00m

$377

Quickest round-trip

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

dom 5/3

6:00 am-11:56 am

1 stop6h 56m

San José Juan Santamaria Intl

sab 5/9

1:20 pm-11:59 pm

1 stop9h 39m

$382

St. LouisSan José

STL - SJO

STLSJO

Lambert-St Louis

sab 5/9

6:00 am-1:15 pm

1 stop8h 15m

San José Juan Santamaria Intl

mer 5/20

1:20 pm-11:59 pm

1 stop9h 39m

$402

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to San José

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

Prices

Airlines

Other information

What is the cheapest month to fly to San José?

In general, September is the cheapest month to fly from Illinois to San José. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $313. If you don’t want to visit San José in September, then you should wait until October to fly from Illinois, when ticket prices are also cheap, with an average price of $376.

What is the cheapest day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Illinois is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $512. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Illinois to San José on a Saturday will generally be more expensive and average around $695. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San José?

Our data shows that the cheapest Illinois to San José flights are usually those with departure times in the afternoon. Our users have found flights to San José in the afternoon for as low as $502. Flights at noon are often more expensive with an average ticket price of $664.

What is the cheapest Illinois to San José Juan Santamaria Intl flight route?

Fly from Chicago O'Hare Intl to San José Juan Santamaria Intl for the best Illinois - San José Juan Santamaria Intl flight prices

How far in advance should I book a flight to San José?

You are more likely to see cheaper flights to San José from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to San José for around $507 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José from Illinois for as low as $430 on momondo.

What cabin class options are available on Illinois to San José Juan Santamaria Intl flights?

There are 3 cabin classes available to choose from on Illinois to San José Juan Santamaria Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to San José flights?

You could potentially save up to 2% on your flight if you consider stops on a Illinois to San José flight.

Cheap Illinois to San José flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to San José

Best Price Found	$242
Fastest flight time	5h 17m
Direct flights	Every day
Airports in San José	1 airport

The best one-way flight to San José from Illinois in the past 72 hours is $242. The best round-trip flight deal from Illinois to San José found on momondo in the last 72 hours is $455.

The fastest flight from Illinois to San José takes 5h 17m

Direct flights go from Illinois to San José every day.

There is 1 airport in San José. From Illinois there are direct flights to San José Juan Santamaria Intl (SJO).

Search flight deals

When did momondo last update prices for flights from Illinois to San José Juan Santamaria Intl Airport?
Prices for flights from Illinois to San José Juan Santamaria Intl Airport refresh daily.
How many operators does momondo search for flights from Illinois to San José Juan Santamaria Intl Airport?
As of March 2026, there are 8 operators available to choose from for flights from Illinois to San José Juan Santamaria Intl Airport.
How old do you have to be to fly from Illinois to San José Juan Santamaria Intl 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 Illinois to San José Juan Santamaria Intl Airport.
What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?
The required travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to San José?
Based on momondo bookings for flights between Illinois and San José, the leading plane model is Boeing 737 MAX 8, making up 68.31% of the total bookings. Other popular models include Boeing 737 MAX 9 with 14.37%, Canadair (Bombardier) Regional Jet with 13.98%, and Airbus A320neo with 1.18%.

Best airlines flying from Illinois to San José

Compare and see reviews for airlines that fly from Illinois to San José with momondo

Airline	Rating	Free Cancellation	Price
Avianca	PriceFrom $148	Free Cancellation	Rating 6.5 2,498 reviews	Search Avianca flights
Delta	PriceFrom $205	Free Cancellation	Rating 7.9 8,284 reviews	Search Delta flights
Spirit Airlines	PriceFrom $239	Free Cancellation	Rating 6.3 8,518 reviews	Search Spirit Airlines flights
Copa Airlines	PriceFrom $256	Free Cancellation	Rating 7.5 1,570 reviews	Search Copa Airlines flights
American Airlines	PriceFrom $340	Free Cancellation	Rating 7.1 11,426 reviews	Search American Airlines flights
Frontier	PriceFrom $345	Free Cancellation	Rating 5.7 3,035 reviews	Search Frontier flights
United Airlines	PriceFrom $388	Free Cancellation	Rating 7.4 9,415 reviews	Search United Airlines flights
Southwest	PriceFrom $394	Free Cancellation	Rating 8.0 4,317 reviews	Search Southwest flights

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Why use momondo?

Why should I use momondo to find a flight deal from Illinois to San José?

Finding the right flight to San José from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San José quick and easy, saving you time and money.

Can I find flights from Illinois to San José with flexible booking policies on momondo?

Flights from Illinois to San José with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to San José?

momondo provides multiple filters to help you find the best flight to San José from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois to San José right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Illinois to San José 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.

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Cheap flights from Illinois to San José from $133

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 San José departing on 4/9. 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 Illinois to San José

Our best American Airlines deals on Illinois to San José flight tickets

Spirit Airlines flights from Illinois to San José

Our best Spirit Airlines deals on Illinois to San José flight tickets

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How to get the cheapest flight ticket from Illinois to San José

What is the cheapest month to fly to San José?

What is the cheapest day to depart on your flight to San José?

What is the cheapest time of day to depart on your flight to San José?

What is the cheapest Illinois to San José Juan Santamaria Intl flight route?

How far in advance should I book a flight to San José?

What cabin class options are available on Illinois to San José Juan Santamaria Intl flights?

Can stopping save me money on Illinois to San José flights?

What is the cheapest airline that flies from Illinois to San José Juan Santamaria Intl?

What airlines fly to San José?

How many flights depart from Illinois to San José on average per day?

How many flights depart from Illinois to San José on average per week?

How long does it take to fly to San José?

Cheap Illinois to San José flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to San José

Best Price Found

Fastest flight time

Direct flights

Airports in San José

Best airlines flying from Illinois to San José

Compare and see reviews for airlines that fly from Illinois to San José with momondo

Traveling to a place near San José?

Why use momondo?

An easier way to manage your San José trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

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List of cabin classes available on flights landing in San José. Availability may vary depending on flight origin and airline.

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