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Cheap flights from Illinois to San Luis Obispo from $148

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 Luis Obispo departing on 7/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to San Luis Obispo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
9:31 am - 6:01 pm
ORD
-
SBP
10h 30m
1 stop
Alaska Airlines Logo
2:27 pm - 11:49 pm
SBP
-
ORD
7h 22m
1 stop
$285Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
Alaska Airlines Logo
2:18 pm - 11:50 pm
ORD
-
SBP
11h 32m
1 stop
Alaska Airlines Logo
3:24 pm - 1:22 pm
SBP
-
ORD
19h 58m
1 stop
$295Alaska Airlines
Tue, Sep 22 - Sat, Sep 26
American Airlines Logo
5:00 am - 12:11 pm
ORD
-
SBP
9h 11m
2 stops
American Airlines Logo
1:00 pm - 9:30 pm
SBP
-
ORD
6h 30m
1 stop
$300American Airlines
Wed, Sep 9 - Wed, Sep 16
American Airlines Logo
5:00 am - 12:11 pm
ORD
-
SBP
9h 11m
2 stops
American Airlines Logo
1:00 pm - 11:30 pm
SBP
-
ORD
8h 30m
2 stops
$305American Airlines
Tue, Sep 22 - Sat, Sep 26
Alaska Airlines Logo
5:59 pm - 11:40 pm
ORD
-
SBP
7h 41m
1 stop
Alaska Airlines Logo
6:04 am - 6:57 pm
SBP
-
ORD
10h 53m
1 stop
$311Alaska Airlines
Sat, Jul 4 - Wed, Jul 15
Alaska Airlines Logo
2:17 pm - 7:58 pm
ORD
-
SBP
7h 41m
1 stop
Alaska Airlines Logo
3:36 pm - 11:59 pm
SBP
-
ORD
6h 23m
1 stop
$322Alaska Airlines
Wed, Oct 28 - Sat, Oct 31
American Airlines Logo
7:00 am - 12:12 pm
ORD
-
SBP
7h 12m
1 stop
American Airlines Logo
12:57 pm - 11:31 pm
SBP
-
ORD
8h 34m
2 stops
$335American Airlines
Tue, Nov 3 - Tue, Nov 10
United Airlines Logo
4:20 pm - 9:00 pm
ORD
-
SBP
6h 40m
1 stop
United Airlines Logo
8:33 pm - 6:56 am
SBP
-
ORD
8h 23m
1 stop
$342United Airlines
Wed, Aug 19 - Sun, Aug 23
United Airlines Logo
4:39 pm - 9:00 pm
STL
-
SBP
6h 21m
1 stop
United Airlines Logo
1:02 pm - 8:36 pm
SBP
-
STL
5h 34m
1 stop
$344United Airlines
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
4:39 pm - 9:00 pm
STL
-
SBP
6h 21m
1 stop
United Airlines Logo
8:00 am - 8:36 pm
SBP
-
STL
10h 36m
2 stops
$350United Airlines
Wed, Sep 30 - Wed, Oct 7

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Alaska Airlines flights from Illinois to San Luis Obispo

Our best Alaska Airlines deals on Illinois to San Luis Obispo flight tickets
Alaska Airlines
Jul 8
ORD6:20 amChicago O'Hare Intl
12h 57m
1 stop
SBP5:17 pmSan Luis Obispo County
Jul 15
SBP5:50 pmSan Luis Obispo County
9h 10m
1 stop
ORD5:00 amChicago O'Hare Intl
$285
Alaska Airlines
Sep 22
ORD2:18 pmChicago O'Hare Intl
11h 32m
1 stop
SBP11:50 pmSan Luis Obispo County
Sep 26
SBP3:24 pmSan Luis Obispo County
19h 58m
1 stop
ORD1:22 pmChicago O'Hare Intl
$295
Alaska Airlines
Jul 4
ORD5:59 pmChicago O'Hare Intl
7h 41m
1 stop
SBP11:40 pmSan Luis Obispo County
Jul 15
SBP6:04 amSan Luis Obispo County
10h 53m
1 stop
ORD6:57 pmChicago O'Hare Intl
$311

United Airlines flights from Illinois to San Luis Obispo

Our best United Airlines deals on Illinois to San Luis Obispo flight tickets
United Airlines
Aug 19
ORD4:20 pmChicago O'Hare Intl
6h 40m
1 stop
SBP9:00 pmSan Luis Obispo County
Aug 23
SBP8:33 pmSan Luis Obispo County
8h 23m
1 stop
ORD6:56 amChicago O'Hare Intl
$342
United Airlines
Sep 30
STL4:39 pmLambert-St Louis
6h 21m
1 stop
SBP9:00 pmSan Luis Obispo County
Oct 7
SBP1:02 pmSan Luis Obispo County
5h 34m
1 stop
STL8:36 pmLambert-St Louis
$344
United Airlines
Sep 30
STL4:39 pmLambert-St Louis
6h 21m
1 stop
SBP9:00 pmSan Luis Obispo County
Oct 7
SBP8:00 amSan Luis Obispo County
10h 36m
2 stops
STL8:36 pmLambert-St Louis
$350

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to San Luis Obispo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 13, 2026.
Use the filters below to find and compare flights from Illinois to San Luis Obispo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 11/3

9:31 am-6:01 pm

1 stop10h 30m

San Luis Obispo County

Tue 11/10

2:27 pm-11:49 pm

1 stop7h 22m

$285

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 9/22

2:18 pm-11:50 pm

1 stop11h 32m

San Luis Obispo County

Sat 9/26

3:24 pm-1:22 pm

1 stop19h 58m

$295

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Wed 9/9

5:00 am-12:11 pm

2 stops9h 11m

San Luis Obispo County

Wed 9/16

1:00 pm-9:30 pm

1 stop6h 30m

$300

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 9/22

5:00 am-12:11 pm

2 stops9h 11m

San Luis Obispo County

Sat 9/26

1:00 pm-11:30 pm

2 stops8h 30m

$305

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Sat 7/4

5:59 pm-11:40 pm

1 stop7h 41m

San Luis Obispo County

Wed 7/15

6:04 am-6:57 pm

1 stop10h 53m

$311

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Wed 10/28

2:17 pm-7:58 pm

1 stop7h 41m

San Luis Obispo County

Sat 10/31

3:36 pm-11:59 pm

1 stop6h 23m

$322

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 11/3

7:00 am-12:12 pm

1 stop7h 12m

San Luis Obispo County

Tue 11/10

12:57 pm-11:31 pm

2 stops8h 34m

$335

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Wed 8/19

4:20 pm-9:00 pm

1 stop6h 40m

San Luis Obispo County

Sun 8/23

8:33 pm-6:56 am

1 stop8h 23m

$342
Quickest round-trip

St. LouisSan Luis Obispo

STL - SBP

STLSBP

Lambert-St Louis

Wed 9/30

4:39 pm-9:00 pm

1 stop6h 21m

San Luis Obispo County

Wed 10/7

1:02 pm-8:36 pm

1 stop5h 34m

$344

St. LouisSan Luis Obispo

STL - SBP

STLSBP

Lambert-St Louis

Wed 9/30

4:39 pm-9:00 pm

1 stop6h 21m

San Luis Obispo County

Wed 10/7

8:00 am-8:36 pm

2 stops10h 36m

$350

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Luis Obispo from

How to get the cheapest flight ticket from Illinois to San Luis Obispo

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 San Luis Obispo?

In general, September is the cheapest month to fly from Illinois to San Luis Obispo. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $230. The month of March is another great option to travel to San Luis Obispo, with average flight prices from Illinois averaging around $246.

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

You could potentially save up to 49% on your flight if you consider stops on a Illinois to San Luis Obispo flight.

Cheap Illinois to San Luis Obispo flight deals and tips

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

Fastest flight time

6h 03m

Direct flights

None
The fastest flight from Illinois to San Luis Obispo takes 6h 03m
There are no direct flights from Illinois to San Luis Obispo. There are no popular flight routes from Illinois to San Luis Obispo.
Search flight deals

Frequently asked questions about flying from Illinois to San Luis Obispo

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

    Prices for flights from Illinois to San Luis Obispo County Airport were last updated today.

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

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

    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 Illinois to San Luis Obispo County Airport.

  • What documentation or ID do you need to fly to San Luis Obispo County Airport?

    The required travel and health documents for your San Luis Obispo County 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 Luis Obispo County Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to San Luis Obispo

Compare and see reviews for airlines that fly from Illinois to San Luis Obispo with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $247Free CancellationRating
7.1
11,648 reviews
Search American Airlines flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,815 reviews
Search United Airlines flights

Traveling to a place near San Luis Obispo?

Book flights to San Luis Obispo if you plan to visit one of these locations
Pismo Beach
Paso Robles
Morro Bay
Cambria
Avila Beach
San Simeon
Cayucos
Arroyo Grande
Atascadero
Grover Beach

Why use momondo?

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

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 San Luis Obispo from Illinois.

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

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

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

momondo helps you find the best flight between Illinois and San Luis Obispo by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to San Luis Obispo 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.

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