$264+ Cheap flights from Ontario to San Luis Obispo (ONT - SBP)
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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SBP
Jul 3 — Jul 101
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to San Luis Obispo with Cheapflights
1. Tell us where you want to go
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to San Luis Obispo
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Cheapest flights from Ontario to San Luis ObispoExplore the most affordable flight options available from Ontario to San Luis Obispo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
Explore the most affordable flight options available from Ontario to San Luis Obispo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
This United Airlines deal was found by Cheapflights users on 6/2. 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 9/116:00 am
ONT
- SBP
1 stop5h 53m
United Airlines
Sun 9/132:20 pm
SBP
- ONT
1 stop3h 51m
United Airlines
Deal found 6/2![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 5/31. 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 6/196:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Mon 6/226:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 6/1. 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 11/36:00 am
ONT
- SBP
1 stop5h 34m
United Airlines
Sat 11/76:55 pm
SBP
- ONT
1 stop4h 11m
United Airlines
Deal found 6/1![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 5/29. 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 6/266:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Sun 6/286:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/29![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 5/31. 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 6/41:18 pm
ONT
- SBP
1 stop7h 32m
United Airlines
Sun 6/76:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 5/31. 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 6/45:00 am
ONT
- SBP
1 stop8h 09m
United Airlines
Sat 6/65:00 am
SBP
- ONT
1 stop7h 38m
United Airlines
Deal found 5/31![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/156:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Fri 7/176:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/26:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Mon 7/66:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 6/1. 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 6/21:18 pm
ONT
- SBP
1 stop7h 32m
United Airlines
Tue 6/96:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/1![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 6/1. 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 10/296:00 am
ONT
- SBP
1 stop5h 34m
United Airlines
Sat 11/145:15 am
SBP
- ONT
1 stop7h 18m
United Airlines
Deal found 6/1![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/131:40 pm
ONT
- SBP
1 stop6h 13m
United Airlines
Sun 6/146:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 11/35:12 pm
ONT
- SBP
2 stops30h 30m
Alaska Airlines
Sat 11/74:41 pm
SBP
- ONT
1 stop6h 13m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$507
Best flights from Ontario to San Luis ObispoDiscover carefully curated flight deals from Ontario to San Luis Obispo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
Discover carefully curated flight deals from Ontario to San Luis Obispo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
This United Airlines deal was found by Cheapflights users on 5/31. 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 6/196:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Mon 6/226:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$294
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 6/247:00 am
ONT
- SBP
1 stop9h 40m
Alaska Airlines
Fri 6/265:20 pm
SBP
- ONT
1 stop23h 32m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 5/31. 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 7/21:50 pm
ONT
- SBP
1 stop5h 57m
United Airlines
Sun 7/56:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/1. 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 6/196:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Sun 6/217:04 pm
SBP
- ONT
1 stop3h 33m
United Airlines
Deal found 6/1![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 5/31. 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 7/81:50 pm
ONT
- SBP
1 stop5h 57m
United Airlines
Mon 7/136:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 5/29. 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 6/257:00 am
ONT
- SBP
1 stop9h 40m
Alaska Airlines
Sun 6/285:20 pm
SBP
- ONT
1 stop16h 36m
Alaska Airlines
Deal found 5/29![Alaska Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/156:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Fri 7/176:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/26:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Mon 7/66:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/131:40 pm
ONT
- SBP
1 stop6h 13m
United Airlines
Sun 6/146:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 5/29. 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 7/246:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Sun 7/266:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/29![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/246:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Wed 7/86:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 6/3. 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 7/36:39 pm
ONT
- SBP
1 stop3h 35m
United Airlines
Fri 7/106:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/3![United Airlines logo]()
$564
Last-minute flights from Ontario to San Luis ObispoDiscover last-minute flight deals from Ontario to San Luis Obispo. Data last updated June 3, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to San Luis Obispo. Data last updated June 3, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/31. 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 6/41:18 pm
ONT
- SBP
1 stop7h 32m
United Airlines
Sun 6/76:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 5/31. 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 6/45:00 am
ONT
- SBP
1 stop8h 09m
United Airlines
Sat 6/65:00 am
SBP
- ONT
1 stop7h 38m
United Airlines
Deal found 5/31![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/131:40 pm
ONT
- SBP
1 stop6h 13m
United Airlines
Sun 6/146:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 5/31. 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 6/196:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Mon 6/226:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 6/3. 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 6/196:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Sun 6/217:04 pm
SBP
- ONT
1 stop3h 33m
United Airlines
Deal found 6/3![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/2. 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 6/246:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Wed 7/86:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 5/29. 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 6/266:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Sun 6/286:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/29![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/26:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Mon 7/66:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 6/3. 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 7/36:39 pm
ONT
- SBP
1 stop3h 35m
United Airlines
Fri 7/106:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/3![United Airlines logo]()
$564
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/156:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Fri 7/176:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 5/29. 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 7/246:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Sun 7/266:25 am
SBP
- ONT
1 stop5h 47m
United Airlines
Deal found 5/29![United Airlines logo]()
$524
One-way flights from Ontario to San Luis ObispoSearch for one-way flight options from Ontario to San Luis Obispo. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
Search for one-way flight options from Ontario to San Luis Obispo. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Mon 6/226:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Deal found 6/1![United Airlines logo]()
$264
This United Airlines deal was found by Cheapflights users on 6/1. 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 6/176:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Deal found 6/1![United Airlines logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 5/29. 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 8/224:27 pm
ONT
- SBP
2 stops7h 23m
Alaska Airlines
Deal found 5/29![Alaska Airlines logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 5/31. 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 7/254:18 pm
ONT
- SBP
2 stops7h 22m
Alaska Airlines
Deal found 5/31![Alaska Airlines logo]()
$338
This Alaska Airlines deal was found by Cheapflights users on 5/29. 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 7/235:32 pm
ONT
- SBP
1 stop6h 13m
Alaska Airlines
Deal found 5/29![Alaska Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 5/30. 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 6/66:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Deal found 5/30![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/1. 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 6/196:39 pm
ONT
- SBP
1 stop3h 33m
United Airlines
Deal found 6/1![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 5/29. 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 6/116:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Deal found 5/29![United Airlines logo]()
$410
This United Airlines deal was found by Cheapflights users on 6/1. 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 6/75:00 am
ONT
- SBP
1 stop8h 09m
United Airlines
Deal found 6/1![United Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 6/234:18 pm
ONT
- SBP
2 stops7h 22m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 5/29. 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 6/106:00 am
ONT
- SBP
1 stop5h 38m
United Airlines
Deal found 5/29![United Airlines logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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 6/194:18 pm
ONT
- SBP
2 stops7h 22m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$509
Find flight deals from Ontario to San Luis Obispo
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to San Luis Obispo (SBP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $294 (United Airlines) |
One-way from | $264 (United Airlines) |
Popular in | April |
Cheapest in | December |
Average price | $346 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario 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, Cheapflights users made 2,558,603 searches. Data last updated June 3, 2026.
Use the filters below to find and compare flights from Ontario to San Luis Obispo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Fri 6/19
6:39 pm-10:12 pm
1 stop3h 33m
San Luis Obispo County
Mon 6/22
6:25 am-12:12 pm
1 stop5h 47m
$294
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Thu 7/2
1:50 pm-7:47 pm
1 stop5h 57m
San Luis Obispo County
Sun 7/5
6:25 am-12:12 pm
1 stop5h 47m
$349
Quickest round-trip
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Fri 6/19
6:00 am-11:38 am
1 stop5h 38m
San Luis Obispo County
Sun 6/21
7:04 pm-10:37 pm
1 stop3h 33m
$349
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Wed 7/8
1:50 pm-7:47 pm
1 stop5h 57m
San Luis Obispo County
Mon 7/13
6:25 am-12:12 pm
1 stop5h 47m
$349
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Wed 7/15
6:39 pm-10:12 pm
1 stop3h 33m
San Luis Obispo County
Fri 7/17
6:25 am-12:12 pm
1 stop5h 47m
$457
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Thu 7/2
6:00 am-11:38 am
1 stop5h 38m
San Luis Obispo County
Mon 7/6
6:25 am-12:12 pm
1 stop5h 47m
$464
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Sat 6/13
1:40 pm-7:53 pm
1 stop6h 13m
San Luis Obispo County
Sun 6/14
6:25 am-12:12 pm
1 stop5h 47m
$489
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Fri 7/24
6:39 pm-10:12 pm
1 stop3h 33m
San Luis Obispo County
Sun 7/26
6:25 am-12:12 pm
1 stop5h 47m
$524
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Wed 6/24
6:39 pm-10:12 pm
1 stop3h 33m
San Luis Obispo County
Wed 7/8
6:25 am-12:12 pm
1 stop5h 47m
$559
OntarioSan Luis Obispo
ONT - SBP
ONTSBP
Ontario
Fri 7/3
6:39 pm-10:14 pm
1 stop3h 35m
San Luis Obispo County
Fri 7/10
6:25 am-12:12 pm
1 stop5h 47m
$564
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Ontario to San Luis Obispo
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to San Luis Obispo in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-San Luis Obispo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-San Luis Obispo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-San Luis Obispo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-San Luis Obispo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-San Luis Obispo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to San Luis Obispo
Have a flexible travel schedule? Discover the best time to fly to San Luis Obispo from Ontario with our price prediction graph.
ONT-SBP
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.
Reviews of airlines servicing San Luis Obispo
Get insights into the airlines that provide service to San Luis Obispo. 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 San Luis Obispo. Reviews last updated June 3, 2026.
Peruse reviews from past customers who have flown with United Airlines from Ontario to San Luis Obispo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Entertainment
7.1
Food
6.6
Crew
8.1
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Entertainment
7.1
Food
6.6
Crew
8.1
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Ontario to San Luis Obispo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Luis Obispo?
Book flights to San Luis Obispo if you plan to visit one of these locationsMorro Bay
Cambria
Arroyo Grande
San Simeon
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Ontario and San Luis Obispo flights
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Top airline flying from Ontario to San Luis Obispo
Discover the top airline that operate flights from Ontario to San Luis Obispo. 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 June 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$233 | Average$368 | FlexibilityNo cancel fee | On-time69% |