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Cheap flights from Illinois to San Luis Obispo from $135

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 10/31. 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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0 bags

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Find the cheapest flights from Illinois to San Luis Obispo

Cheap round-trip flights

Hawaiian Airlines Logo
8:20 am - 1:39 pmORD-SBP
7h 19m1 stop
Hawaiian Airlines Logo
7:50 pm - 6:24 amSBP-ORD
8h 34m1 stop
$257Hawaiian Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 21
Alaska Airlines Logo
8:20 am - 1:39 pmORD-SBP
7h 19m1 stop
Alaska Airlines Logo
2:14 pm - 2:50 pmSBP-ORD
22h 36m2 stops
$262Alaska Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 21
Alaska Airlines Logo
8:20 am - 1:39 pmORD-SBP
7h 19m1 stop
Alaska Airlines Logo
6:00 am - 6:59 pmSBP-ORD
10h 59m1 stop
$266Alaska Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 21
United Airlines Logo
7:18 am - 12:16 pmORD-SBP
6h 58m1 stop
United Airlines Logo
6:22 pm - 5:13 amSBP-ORD
8h 51m1 stop
$269United Airlines
Find Deal
Tue, Oct 7 - Wed, Oct 8
American Airlines Logo
10:32 am - 6:27 pmORD-SBP
9h 55m2 stops
American Airlines Logo
12:38 pm - 9:01 pmSBP-ORD
6h 23m1 stop
$274American Airlines
Find Deal
Tue, Oct 7 - Wed, Oct 8
American Airlines Logo
11:54 am - 6:43 pmORD-SBP
8h 49m2 stops
American Airlines Logo
12:53 pm - 10:24 pmSBP-ORD
7h 31m1 stop
$275American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
10:32 am - 6:27 pmORD-SBP
9h 55m2 stops
American Airlines Logo
12:42 pm - 11:42 pmSBP-ORD
9h 00m2 stops
$279American Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 21
American Airlines Logo
10:01 am - 6:43 pmORD-SBP
10h 42m2 stops
American Airlines Logo
10:05 am - 9:45 pmSBP-ORD
9h 40m2 stops
$280American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
Hawaiian Airlines Logo
3:50 pm - 11:24 pmORD-SBP
9h 34m1 stop
Hawaiian Airlines Logo
2:03 pm - 11:59 pmSBP-ORD
7h 56m1 stop
$293Hawaiian Airlines
Find Deal
Fri, Oct 10 - Wed, Oct 15
United Airlines Logo
2:53 pm - 8:52 pmORD-SBP
7h 59m1 stop
United Airlines Logo
6:22 pm - 5:13 amSBP-ORD
8h 51m1 stop
$404United Airlines
Find Deal
Thu, Oct 2 - Sun, Oct 5

Hawaiian Airlines flights from Illinois to San Luis Obispo

Our best Hawaiian Airlines deals on Illinois to San Luis Obispo flight tickets
Hawaiian Airlines
Oct 7
ORD8:20 amChicago O'Hare Intl
7h 19m
1 stop
SBP1:39 pmSan Luis Obispo County
Oct 21
SBP7:50 pmSan Luis Obispo County
8h 34m
1 stop
ORD6:24 amChicago O'Hare Intl
$257
Find similar
Hawaiian Airlines
Oct 10
ORD3:50 pmChicago O'Hare Intl
9h 34m
1 stop
SBP11:24 pmSan Luis Obispo County
Oct 15
SBP2:03 pmSan Luis Obispo County
7h 56m
1 stop
ORD11:59 pmChicago O'Hare Intl
$293
Find similar
Hawaiian Airlines
Oct 17
ORD3:50 pmChicago O'Hare Intl
9h 34m
1 stop
SBP11:24 pmSan Luis Obispo County
Oct 20
SBP7:50 pmSan Luis Obispo County
8h 34m
1 stop
ORD6:24 amChicago O'Hare Intl
$348
Find similar

Alaska Airlines flights from Illinois to San Luis Obispo

Our best Alaska Airlines deals on Illinois to San Luis Obispo flight tickets
Alaska Airlines
Oct 7
ORD8:20 amChicago O'Hare Intl
7h 19m
1 stop
SBP1:39 pmSan Luis Obispo County
Oct 21
SBP2:14 pmSan Luis Obispo County
22h 36m
2 stops
ORD2:50 pmChicago O'Hare Intl
$262
Find similar
Alaska Airlines
Oct 7
ORD8:20 amChicago O'Hare Intl
7h 19m
1 stop
SBP1:39 pmSan Luis Obispo County
Oct 21
SBP6:00 amSan Luis Obispo County
10h 59m
1 stop
ORD6:59 pmChicago O'Hare Intl
$266
Find similar
Alaska Airlines
Nov 14
ORD7:59 pmChicago O'Hare Intl
29h 27m
1 stop
SBP11:26 pmSan Luis Obispo County
Nov 17
SBP6:00 amSan Luis Obispo County
5h 54m
1 stop
ORD1:54 pmChicago O'Hare Intl
$295
Find similar

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 August 14, 2025.
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

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 10/7

8:20 am-1:39 pm

1 stop7h 19m

San Luis Obispo County

Tue 10/21

7:50 pm-6:24 am

1 stop8h 34m

$257

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 10/7

8:20 am-1:39 pm

1 stop7h 19m

San Luis Obispo County

Tue 10/21

2:14 pm-2:50 pm

2 stops22h 36m

$262

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 10/7

8:20 am-1:39 pm

1 stop7h 19m

San Luis Obispo County

Tue 10/21

6:00 am-6:59 pm

1 stop10h 59m

$266

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 10/7

7:18 am-12:16 pm

1 stop6h 58m

San Luis Obispo County

Wed 10/8

6:22 pm-5:13 am

1 stop8h 51m

$269

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 10/7

10:32 am-6:27 pm

2 stops9h 55m

San Luis Obispo County

Wed 10/8

12:38 pm-9:01 pm

1 stop6h 23m

$274

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Sat 9/27

11:54 am-6:43 pm

2 stops8h 49m

San Luis Obispo County

Sat 10/4

12:53 pm-10:24 pm

1 stop7h 31m

$275

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Tue 10/7

10:32 am-6:27 pm

2 stops9h 55m

San Luis Obispo County

Tue 10/21

12:42 pm-11:42 pm

2 stops9h 00m

$279

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Sat 9/27

10:01 am-6:43 pm

2 stops10h 42m

San Luis Obispo County

Sat 10/4

10:05 am-9:45 pm

2 stops9h 40m

$280

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Fri 10/10

3:50 pm-11:24 pm

1 stop9h 34m

San Luis Obispo County

Wed 10/15

2:03 pm-11:59 pm

1 stop7h 56m

$293

ChicagoSan Luis Obispo

ORD - SBP

ORDSBP

Chicago O'Hare Intl

Thu 10/2

2:53 pm-8:52 pm

1 stop7h 59m

San Luis Obispo County

Sun 10/5

6:22 pm-5:13 am

1 stop8h 51m

$404

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, December 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 $336. The month of September is another great option to travel to San Luis Obispo, with average flight prices from Illinois averaging around $401.

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

On average, the least expensive day to fly to San Luis Obispo from Illinois is on a Saturday. momondo users have found tickets for Saturday departures for as low as $452. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to San Luis Obispo for around $693.

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

Flying to San Luis Obispo from Illinois in the morning is the least expensive time of day to depart. momondo users have found prices as low as $563 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $693 on average. Flights to San Luis Obispo from Illinois in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 76% 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

Best Price Found

$135

Fastest flight time

6h 06m

Direct flights

None

Airports in San Luis Obispo

1 airport
The best one-way flight to San Luis Obispo from Illinois in the past 72 hours is $135. The best round-trip flight deal from Illinois to San Luis Obispo found on momondo in the last 72 hours is $257.
The fastest flight from Illinois to San Luis Obispo takes 6h 06m
There are no direct flights from Illinois to San Luis Obispo. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - San Luis Obispo County Airport.
There is 1 airport near San Luis Obispo: San Luis Obispo County (SBP)
Search flight deals

  • 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 $326Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $518Free CancellationRating
7.4
8,916 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
Morro Bay
Cambria
Paso Robles
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.

An easier way to manage your San Luis Obispo trip

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