$155+ Cheap flights from San Luis Obispo (SBP) to Illinois
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SBP — ORD
Mar 28 — Apr 41
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from San Luis Obispo to IllinoisExplore the most affordable flight options available from San Luis Obispo to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.
Explore the most affordable flight options available from San Luis Obispo to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:27 pm
SBP
- ORD
1 stop7h 32m
Alaska Airlines
Sat 5/98:50 am
ORD
- SBP
1 stop8h 09m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:10 pm
SBP
- ORD
1 stop8h 15m
American Airlines
Sat 4/45:26 am
ORD
- SBP
1 stop8h 36m
American Airlines
Deal found 2/25![American Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:42 pm
SBP
- ORD
1 stop6h 57m
United Airlines
Sat 5/303:26 pm
ORD
- SBP
1 stop8h 46m
United Airlines
Deal found 2/23![United Airlines logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:35 pm
SBP
- ORD
1 stop9h 25m
Alaska Airlines
Tue 10/62:54 pm
ORD
- SBP
1 stop10h 20m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:22 pm
SBP
- ORD
1 stop9h 20m
American Airlines
Sat 5/302:59 pm
ORD
- SBP
2 stops9h 46m
American Airlines
Deal found 2/25![American Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:18 pm
SBP
- ORD
1 stop9h 45m
American Airlines
Sat 9/511:54 am
ORD
- SBP
2 stops8h 28m
American Airlines
Deal found 2/25![American Airlines logo]()
$321
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:06 pm
SBP
- ORD
1 stop8h 53m
United Airlines
Mon 7/136:10 pm
ORD
- SBP
1 stop7h 34m
United Airlines
Deal found 2/23![United Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:02 pm
SBP
- ORD
1 stop8h 19m
American Airlines
Sat 5/93:07 pm
ORD
- SBP
2 stops9h 03m
American Airlines
Deal found 2/24![American Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:20 am
SBP
- PIA
2 stops11h 06m
United Airlines
Sat 2/281:25 pm
PIA
- SBP
2 stops12h 34m
United Airlines
Deal found 2/23![United Airlines logo]()
$591
Best flights from San Luis Obispo to IllinoisDiscover carefully curated flight deals from San Luis Obispo to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 26, 2026.
Discover carefully curated flight deals from San Luis Obispo to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 26, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:27 pm
SBP
- ORD
1 stop7h 32m
Alaska Airlines
Sat 5/98:50 am
ORD
- SBP
1 stop8h 09m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$237
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:42 pm
SBP
- ORD
1 stop6h 57m
United Airlines
Sat 5/303:26 pm
ORD
- SBP
1 stop8h 46m
United Airlines
Deal found 2/25![United Airlines logo]()
$304
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:50 pm
SBP
- ORD
1 stop6h 37m
United Airlines
Sat 5/24:10 pm
ORD
- SBP
1 stop7h 06m
United Airlines
Deal found 2/22![United Airlines logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:20 am
SBP
- ORD
1 stop10h 32m
Alaska Airlines
Tue 5/56:00 am
ORD
- SBP
2 stops19h 15m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:04 pm
SBP
- ORD
1 stop8h 53m
United Airlines
Sun 5/316:10 am
ORD
- SBP
1 stop7h 28m
United Airlines
Deal found 2/24![United Airlines logo]()
$356
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:52 pm
SBP
- ORD
1 stop9h 12m
United Airlines
Sun 5/106:30 pm
ORD
- SBP
1 stop7h 14m
United Airlines
Deal found 2/24![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:05 pm
SBP
- ORD
1 stop8h 46m
United Airlines
Sun 5/316:10 am
ORD
- SBP
1 stop7h 28m
United Airlines
Deal found 2/25![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:04 pm
SBP
- ORD
1 stop8h 53m
United Airlines
Mon 7/276:10 pm
ORD
- SBP
1 stop7h 34m
United Airlines
Deal found 2/25![United Airlines logo]()
$399
Last-minute flights from San Luis Obispo to IllinoisDiscover last-minute flight deals from San Luis Obispo to Illinois. Data last updated February 26, 2026 and is based on user searches.
Discover last-minute flight deals from San Luis Obispo to Illinois. Data last updated February 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/512:50 pm
SBP
- ORD
2 stops8h 46m
American Airlines
Mon 3/97:05 am
ORD
- SBP
1 stop6h 58m
American Airlines
Deal found 2/23![American Airlines logo]()
$510
This Alaska Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
SBP
- ORD
1 stop6h 58m
Alaska Airlines
Sat 3/147:00 am
ORD
- SBP
1 stop13h 53m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:05 am
SBP
- ORD
1 stop6h 50m
United Airlines
Sun 3/156:20 pm
ORD
- SBP
1 stop7h 24m
United Airlines
Deal found 2/24![United Airlines logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:33 pm
SBP
- ORD
1 stop14h 28m
Alaska Airlines
Sun 3/153:07 pm
ORD
- SBP
2 stops26h 00m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$656
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:05 am
SBP
- ORD
1 stop6h 50m
United Airlines
Sun 3/156:20 pm
ORD
- SBP
1 stop7h 24m
United Airlines
Deal found 2/25![United Airlines logo]()
$546
This Expedia deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:00 am
SBP
- ORD
1 stop6h 58m
Alaska Airlines
Sun 3/153:07 pm
ORD
- SBP
2 stops26h 00m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$766
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:00 pm
SBP
- ORD
1 stop9h 18m
United Airlines
Mon 3/166:20 pm
ORD
- SBP
1 stop7h 24m
United Airlines
Deal found 2/25![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:00 am
SBP
- ORD
1 stop6h 58m
Alaska Airlines
Tue 3/173:07 pm
ORD
- SBP
2 stops29h 35m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$480
This Alaska Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:00 am
SBP
- ORD
1 stop6h 58m
Alaska Airlines
Mon 3/162:07 pm
ORD
- SBP
2 stops11h 10m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$650
This United Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1812:38 pm
SBP
- ORD
1 stop8h 17m
United Airlines
Sat 3/216:20 pm
ORD
- SBP
1 stop7h 24m
United Airlines
Deal found 2/26![United Airlines logo]()
$445
This Expedia deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:00 am
SBP
- ORD
2 stops15h 59m
Alaska Airlines
Sat 3/217:24 pm
ORD
- SBP
1 stop25h 18m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$706
One-way flights from San Luis Obispo to IllinoisSearch for one-way flight options from San Luis Obispo to Illinois. Find affordable one-way fares based on user searches. Data last updated February 26, 2026.
Search for one-way flight options from San Luis Obispo to Illinois. Find affordable one-way fares based on user searches. Data last updated February 26, 2026.
This Travelocity deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:20 am
SBP
- ORD
1 stop10h 32m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$155
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:10 pm
SBP
- ORD
1 stop8h 15m
American Airlines
Deal found 2/24![American Airlines logo]()
$171
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:05 pm
SBP
- ORD
1 stop17h 19m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$185
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:00 am
SBP
- ORD
1 stop6h 58m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$225
This Travelocity deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:04 am
SBP
- ORD
1 stop10h 56m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$230
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/56:04 am
SBP
- ORD
1 stop15h 35m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$272
This Expedia deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:04 am
SBP
- ORD
1 stop10h 56m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$275
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/267:34 pm
SBP
- ORD
1 stop26h 25m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$317
Find flight deals from San Luis Obispo to Illinois
Keep the following information in mind while searching for San Luis Obispo to Illinois flight deals. Data was last updated February 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $237 (Alaska Airlines) |
One-way from | $155 (Travelocity) |
Popular in | November |
Cheapest in | August |
Average price | $446 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Luis Obispo to Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated February 26, 2026.
Use the filters below to find and compare flights from San Luis Obispo to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Sat 5/2
2:27 pm-11:59 pm
1 stop7h 32m
Chicago O'Hare Intl
Sat 5/9
8:50 am-2:59 pm
1 stop8h 09m
$237
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Wed 5/27
12:42 pm-9:39 pm
1 stop6h 57m
Chicago O'Hare Intl
Sat 5/30
3:26 pm-10:12 pm
1 stop8h 46m
$304
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Sun 4/12
8:50 pm-5:27 am
1 stop6h 37m
Chicago O'Hare Intl
Sat 5/2
4:10 pm-9:16 pm
1 stop7h 06m
$309
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Fri 5/29
7:04 pm-5:57 am
1 stop8h 53m
Chicago O'Hare Intl
Sun 5/31
6:10 am-11:38 am
1 stop7h 28m
$356
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Fri 5/1
7:20 am-7:52 pm
1 stop10h 32m
Chicago O'Hare Intl
Tue 5/5
6:00 am-11:15 pm
2 stops19h 15m
$366
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Thu 5/7
5:52 pm-5:04 am
1 stop9h 12m
Chicago O'Hare Intl
Sun 5/10
6:30 pm-11:44 pm
1 stop7h 14m
$368
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Thu 5/28
6:05 pm-4:51 am
1 stop8h 46m
Chicago O'Hare Intl
Sun 5/31
6:10 am-11:38 am
1 stop7h 28m
$395
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Sat 7/18
7:04 pm-5:57 am
1 stop8h 53m
Chicago O'Hare Intl
Mon 7/27
6:10 pm-11:44 pm
1 stop7h 34m
$399
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Tue 3/3
6:00 am-2:58 pm
1 stop6h 58m
$225
San Luis ObispoChicago
SBP - ORD
SBPORD
San Luis Obispo County
Sun 7/5
6:04 am-11:39 pm
1 stop15h 35m
$272
Showing 1-10 of 17 resultsSorted by cheapest first
Best time to book a flight from San Luis Obispo to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from San Luis Obispo with our price prediction graph.
SBP-ORD
SBP-PIA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Luis Obispo to Illinois
SBP-USIL
SBP-ORD
SBP-PIA
What is the cheapest month to book a flight from San Luis Obispo to Illinois?
Currently, October is the cheapest month in which you can book a flight from San Luis Obispo to Illinois (average of $240). Flying from San Luis Obispo to Illinois in November is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated February 26, 2026.
Read reviews from past customers who have flown Alaska Airlines, United Airlines, and American Airlines from San Luis Obispo to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from San Luis Obispo to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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San Luis Obispo and Illinois flights
Browse other San Luis Obispo and Illinois flight options. Last updated on February 26, 2026.
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San Luis Obispo to Illinois flights
Consider these flights traveling from San Luis Obispo to Illinois.
Top 2 airlines flying from San Luis Obispo to Illinois
Discover the top 2 airlines that operate flights from San Luis Obispo to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$274 | Average$436 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$378 | Average$584 | FlexibilityNo cancel fee | On-time69% |