$278+ Cheap flights from Ontario to San Luis Obispo (ONT - SBP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SBP
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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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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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 September 22, 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 September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/154:03 pm -
1 stop4h 08m
Sat 10/172:15 pm -
1 stop3h 31m
Deal found 9/18![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/24:03 pm -
1 stop4h 08m
Tue 10/62:15 pm -
1 stop6h 16m
Deal found 9/17![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/18. 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 9/2411:10 am -
1 stop4h 16m
Sun 9/276:15 pm -
1 stop4h 44m
Deal found 9/18![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/261:35 pm -
1 stop6h 29m
Fri 11/66:00 am -
1 stop6h 29m
Deal found 9/17![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/84:03 pm -
1 stop4h 08m
Sun 10/116:00 am -
1 stop6h 18m
Deal found 9/17![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/311:29 pm -
1 stop7h 41m
Wed 11/42:15 pm -
1 stop6h 00m
Deal found 9/21![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/86:07 am -
1 stop5h 55m
Mon 10/122:15 pm -
1 stop6h 16m
Deal found 9/19![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/101:52 pm -
1 stop6h 19m
Sun 10/118:00 am -
1 stop4h 18m
Deal found 9/21![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/17. 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 9/181:56 pm -
1 stop6h 06m
Tue 9/2212:55 pm -
1 stop7h 58m
Deal found 9/17![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/18. 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 9/196:08 am -
1 stop5h 45m
Fri 9/251:02 pm -
1 stop7h 56m
Deal found 9/18![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/18. 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 9/189:01 am -
1 stop6h 20m
Sun 9/207:55 am -
1 stop4h 17m
Deal found 9/18![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/226:07 am -
1 stop5h 55m
Thu 10/222:15 pm -
1 stop6h 16m
Deal found 9/18![United Airlines logo]()
$481
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 September 22, 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 September 22, 2026.
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/96:00 am -
1 stop6h 02m
Tue 10/132:15 pm -
1 stop6h 16m
Deal found 9/18![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/154:03 pm -
1 stop4h 08m
Sun 10/188:00 am -
1 stop4h 18m
Deal found 9/18![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/24:03 pm -
1 stop4h 08m
Tue 10/62:15 pm -
1 stop6h 16m
Deal found 9/17![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/261:35 pm -
1 stop6h 29m
Fri 11/66:00 am -
1 stop6h 29m
Deal found 9/17![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/21. 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 11/136:37 pm -
1 stop3h 38m
Sun 11/156:00 am -
1 stop6h 29m
Deal found 9/21![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/311:29 pm -
1 stop7h 41m
Wed 11/42:15 pm -
1 stop6h 00m
Deal found 9/21![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/19. 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 3/121:33 pm -
1 stop4h 23m
Mon 3/156:10 am -
1 stop6h 10m
Deal found 9/19![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/20. 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 11/135:00 am -
1 stop8h 16m
Mon 11/166:00 am -
1 stop6h 29m
Deal found 9/20![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/19. 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 12/206:00 am -
1 stop5h 50m
Mon 12/282:20 pm -
1 stop3h 26m
Deal found 9/19![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/319:25 am -
1 stop6h 00m
Mon 11/28:00 am -
1 stop4h 29m
Deal found 9/19![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/22. 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.
Wed 10/214:03 pm -
1 stop4h 08m
Wed 10/282:15 pm -
1 stop3h 46m
Deal found 9/22![United Airlines logo]()
$399
Last-minute flights from Ontario to San Luis ObispoDiscover last-minute flight deals from Ontario to San Luis Obispo. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to San Luis Obispo. Data last updated September 22, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/226:08 am -
1 stop5h 45m
Tue 9/292:15 pm -
1 stop6h 16m
Deal found 9/21![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/18. 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 9/2411:10 am -
1 stop4h 16m
Sun 9/276:15 pm -
1 stop4h 44m
Deal found 9/18![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/20. 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 9/241:52 pm -
1 stop6h 19m
Sat 9/265:00 am -
1 stop7h 46m
Deal found 9/20![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/24:03 pm -
1 stop4h 08m
Tue 10/62:15 pm -
1 stop6h 16m
Deal found 9/17![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/84:03 pm -
1 stop4h 08m
Sun 10/116:00 am -
1 stop6h 18m
Deal found 9/17![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/86:07 am -
1 stop5h 55m
Mon 10/122:15 pm -
1 stop6h 16m
Deal found 9/19![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/101:52 pm -
1 stop6h 19m
Sun 10/118:00 am -
1 stop4h 18m
Deal found 9/21![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/131:52 pm -
1 stop6h 19m
Thu 10/156:00 am -
1 stop6h 18m
Deal found 9/21![United Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/154:03 pm -
1 stop4h 08m
Sat 10/172:15 pm -
1 stop3h 31m
Deal found 9/18![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/226:07 am -
1 stop5h 55m
Thu 10/222:15 pm -
1 stop6h 16m
Deal found 9/18![United Airlines logo]()
$481
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/261:35 pm -
1 stop6h 29m
Fri 11/66:00 am -
1 stop6h 29m
Deal found 9/17![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/311:29 pm -
1 stop7h 41m
Wed 11/42:15 pm -
1 stop6h 00m
Deal found 9/21![United Airlines logo]()
$399
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 September 22, 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 September 22, 2026.
This Gotogate deal was found by Cheapflights users on 9/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:45 pm -
2 stops20h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Alaska Airlines logo]()
$278
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/261:35 pm -
1 stop6h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/134:03 pm -
1 stop4h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![United Airlines logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 9/19. 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 10/135:45 pm -
2 stops20h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Alaska Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/255:00 am -
1 stop8h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 9/18. 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 10/165:00 am -
1 stop8h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$310
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/91:52 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 9/18. 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 10/205:45 pm -
2 stops20h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Alaska Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/294:03 pm -
1 stop4h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 9/21. 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 9/274:03 pm -
1 stop6h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/24:03 pm -
1 stop4h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 9/21. 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 9/294:27 pm -
2 stops7h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Alaska Airlines logo]()
$573
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (United Airlines) |
One-way from | $278 (Gotogate) |
Popular in | August |
Cheapest in | November |
Average price | $309 |
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 7,457,451 searches. Data last updated September 22, 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 Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Fri 10/16
5:45 pm-1:46 pm
2 stops20h 01m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$278
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Wed 11/11
6:00 am-11:58 am
1 stop5h 58m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$278
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Mon 10/26
1:35 pm-8:04 pm
1 stop6h 29m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$279
Quickest round-trip
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Thu 10/22
4:03 pm-8:11 pm
1 stop4h 08m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$289
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Tue 10/13
4:03 pm-8:11 pm
1 stop4h 08m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$289
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Wed 10/21
5:00 am-1:19 pm
1 stop8h 19m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$289
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Wed 3/3
5:00 am-1:43 pm
1 stop8h 43m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$289
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Tue 10/27
5:00 am-1:16 pm
1 stop8h 16m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$289
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Tue 10/13
5:45 pm-1:46 pm
2 stops20h 01m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$291
OntarioSan Luis Obispo
ONT Ontario - SBP San Luis Obispo County
ONTSBP
Ontario
Sun 10/25
5:00 am-1:16 pm
1 stop8h 16m
San Luis Obispo County
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$305
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 September.
| 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 September 22, 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
6.7
Crew
8.1
Comfort
7.3
Overall
7.4
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Comfort
7.3
Overall
7.4
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
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 locationsCambria
Morro Bay
Arroyo Grande
San Simeon
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Alternative routes for Ontario to San Luis Obispo
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Ontario and San Luis Obispo flights
Browse other Ontario and San Luis Obispo flight options. Last updated on September 22, 2026.
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Other flights to San Luis Obispo
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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 7,457,451 searches. Data last updated September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$239 | Average$379 | FlexibilityNo cancel fee | On-time69% |