What is the cheapest airline that flies from San Luis Obispo County to Illinois?

American Airlines and United Airlines are the most popular carriers operating from San Luis Obispo County to Illinois

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

As of May 2026, 5 flights take off from San Luis Obispo and land in Illinois each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.

When did momondo last update prices for flights from San Luis Obispo County Airport to Illinois?

Prices for flights from San Luis Obispo County Airport to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from San Luis Obispo County Airport to Illinois?

The number of operators available for flights from San Luis Obispo County Airport to Illinois is 2 as of May 2026.

How old do you have to be to fly from San Luis Obispo County Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Luis Obispo County Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$143 Cheap Flights from San Luis Obispo to Illinois in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from San Luis Obispo to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:24 pm - 11:57 pm

SBP

ORD

6h 33m

1 stop

6:01 am - 2:44 pm

ORD

SBP

10h 43m

1 stop

$285Alaska Airlines

Tue, Sep 1 - Sat, Sep 5

12:45 pm - 11:58 pm

SBP

ORD

9h 13m

2 stops

2:25 pm - 6:40 pm

ORD

SBP

6h 15m

1 stop

$290American Airlines

Tue, Sep 1 - Sat, Sep 5

12:45 pm - 11:58 pm

SBP

ORD

9h 13m

2 stops

5:00 am - 11:58 am

ORD

SBP

8h 58m

2 stops

$296American Airlines

Tue, Sep 1 - Sat, Sep 5

12:28 pm - 11:00 pm

SBP

ORD

8h 32m

1 stop

5:00 am - 11:47 am

ORD

SBP

8h 47m

1 stop

$299American Airlines

Sat, Jun 6 - Tue, Jun 9

7:02 pm - 6:25 am

SBP

ORD

9h 23m

1 stop

7:15 am - 11:58 am

ORD

SBP

6h 43m

1 stop

$322American Airlines

Thu, Jul 30 - Tue, Aug 18

12:28 pm - 11:00 pm

SBP

ORD

8h 32m

1 stop

5:00 am - 11:51 am

ORD

SBP

8h 51m

1 stop

$326American Airlines

Wed, Jul 1 - Sat, Jul 11

7:27 pm - 6:20 am

SBP

ORD

8h 53m

1 stop

9:00 am - 2:19 pm

ORD

SBP

7h 19m

1 stop

$340Alaska Airlines

Wed, May 27 - Sat, Jun 6

8:34 pm - 10:10 am

SBP

PIA

11h 36m

2 stops

5:33 pm - 11:38 am

PIA

SBP

20h 05m

2 stops

$658United Airlines

Mon, May 25 - Fri, May 29

8:34 pm - 10:10 am

SBP

PIA

11h 36m

2 stops

5:33 pm - 8:50 pm

PIA

SBP

29h 17m

3 stops

$719United Airlines

Mon, May 25 - Fri, May 29

12:42 pm - 9:01 pm

SBP

PIA

6h 19m

1 stop

5:33 pm - 10:12 pm

PIA

SBP

30h 39m

2 stops

$732United Airlines

Mon, May 25 - Fri, May 29

United Airlines flights from San Luis Obispo to Illinois

Our best United Airlines deals on San Luis Obispo to Illinois flight tickets

United Airlines

Jun 1

SBP8:34 pmSan Luis Obispo County

6h 24m

1 stop

ORD4:58 amChicago O'Hare Intl

Jun 3

ORD3:26 pmChicago O'Hare Intl

8h 46m

1 stop

SBP10:12 pmSan Luis Obispo County

$341

United Airlines

Jun 10

SBP6:05 pmSan Luis Obispo County

8h 46m

1 stop

ORD4:51 amChicago O'Hare Intl

Jun 13

ORD6:00 amChicago O'Hare Intl

6h 23m

1 stop

SBP10:23 amSan Luis Obispo County

$361

United Airlines

Jun 7

SBP7:04 pmSan Luis Obispo County

8h 49m

1 stop

ORD5:53 amChicago O'Hare Intl

Jun 13

ORD6:00 amChicago O'Hare Intl

6h 23m

1 stop

SBP10:23 amSan Luis Obispo County

$370

American Airlines flights from San Luis Obispo to Illinois

Our best American Airlines deals on San Luis Obispo to Illinois flight tickets

American Airlines

Sep 1

SBP12:45 pmSan Luis Obispo County

9h 13m

2 stops

ORD11:58 pmChicago O'Hare Intl

Sep 5

ORD2:25 pmChicago O'Hare Intl

6h 15m

1 stop

SBP6:40 pmSan Luis Obispo County

$290

American Airlines

Sep 1

SBP12:45 pmSan Luis Obispo County

9h 13m

2 stops

ORD11:58 pmChicago O'Hare Intl

Sep 5

ORD5:00 amChicago O'Hare Intl

8h 58m

2 stops

SBP11:58 amSan Luis Obispo County

$296

American Airlines

Jun 6

SBP12:28 pmSan Luis Obispo County

8h 32m

1 stop

ORD11:00 pmChicago O'Hare Intl

Jun 9

ORD5:00 amChicago O'Hare Intl

8h 47m

1 stop

SBP11:47 amSan Luis Obispo County

$299

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San Luis ObispoChicago

SBP - ORD

SBPORD

San Luis Obispo County

Tue 9/1

3:24 pm-11:57 pm

1 stop6h 33m

Chicago O'Hare Intl

Sat 9/5

6:01 am-2:44 pm

1 stop10h 43m

$285

Quickest round-trip

San Luis ObispoChicago

SBP - ORD

SBPORD

San Luis Obispo County

Tue 9/1

12:45 pm-11:58 pm

2 stops9h 13m

Chicago O'Hare Intl

Sat 9/5

2:25 pm-6:40 pm

1 stop6h 15m

$290

San Luis ObispoChicago

SBP - ORD

SBPORD

San Luis Obispo County

Tue 9/1

12:45 pm-11:58 pm

2 stops9h 13m

Chicago O'Hare Intl

Sat 9/5

5:00 am-11:58 am

2 stops8h 58m

$296

San Luis ObispoChicago

SBP - ORD

SBPORD

San Luis Obispo County

Sat 6/6

12:28 pm-11:00 pm

1 stop8h 32m

Chicago O'Hare Intl

Tue 6/9

5:00 am-11:47 am

1 stop8h 47m

$299

San Luis ObispoChicago

SBP - ORD

SBPORD

San Luis Obispo County

Thu 7/30

7:02 pm-6:25 am

1 stop9h 23m

Chicago O'Hare Intl

Tue 8/18

7:15 am-11:58 am

1 stop6h 43m

$322

San Luis ObispoChicago

SBP - ORD

SBPORD

San Luis Obispo County

Wed 7/1

12:28 pm-11:00 pm

1 stop8h 32m

Chicago O'Hare Intl

Sat 7/11

5:00 am-11:51 am

1 stop8h 51m

$326

San Luis ObispoChicago

SBP - ORD

SBPORD

San Luis Obispo County

Wed 5/27

7:27 pm-6:20 am

1 stop8h 53m

Chicago O'Hare Intl

Sat 6/6

9:00 am-2:19 pm

1 stop7h 19m

$340

San Luis ObispoPeoria

SBP - PIA

SBPPIA

San Luis Obispo County

Mon 5/25

8:34 pm-10:10 am

2 stops11h 36m

Greater Peoria

Fri 5/29

5:33 pm-11:38 am

2 stops20h 05m

$658

San Luis ObispoPeoria

SBP - PIA

SBPPIA

San Luis Obispo County

Mon 5/25

8:34 pm-10:10 am

2 stops11h 36m

Greater Peoria

Fri 5/29

5:33 pm-8:50 pm

3 stops29h 17m

$719

San Luis ObispoPeoria

SBP - PIA

SBPPIA

San Luis Obispo County

Mon 5/25

12:42 pm-9:01 pm

1 stop6h 19m

Greater Peoria

Fri 5/29

5:33 pm-10:12 pm

2 stops30h 39m

$732

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 San Luis Obispo to Illinois

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 Illinois?

The cheapest month to fly to Illinois from San Luis Obispo is in August. Flight prices, which tend to average around $230, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of August, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $240.

Can stopping save me money on San Luis Obispo to Illinois flights?

You could potentially save up to 70% on your flight if you consider stops on a San Luis Obispo to Illinois flight.

Cheap San Luis Obispo to Illinois flight deals and tips

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

Fastest flight time	6h 33m
Direct flights	None

The fastest flight from San Luis Obispo to Illinois takes 6h 33m

There are no direct flights from San Luis Obispo to Illinois. There are no popular flight routes from San Luis Obispo to Illinois.

Search flight deals

Frequently asked questions about flying from San Luis Obispo to Illinois

When did momondo last update prices for flights from San Luis Obispo County Airport to Illinois?
Prices for flights from San Luis Obispo County Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from San Luis Obispo County Airport to Illinois?
The number of operators available for flights from San Luis Obispo County Airport to Illinois is 2 as of May 2026.
How old do you have to be to fly from San Luis Obispo County Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Luis Obispo County Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from San Luis Obispo to Illinois

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $274	Free Cancellation	Rating 7.1 11,661 reviews		Search American Airlines flights
United Airlines	PriceFrom $331	Free Cancellation	Rating 7.4 9,701 reviews		Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Luis Obispo to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Illinois from San Luis Obispo which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Luis Obispo to Illinois.

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

If you are not ready to book a flight from San Luis Obispo to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.