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Cheap flights from Ontario to San Luis Obispo from $230

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Luis Obispo departing on 11/21. 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 Ontario to San Luis Obispo

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 12:18 pmONT-SBP
6h 18m1 stop
United Airlines Logo
6:23 pm - 10:33 pmSBP-ONT
4h 10m1 stop
$278United Airlines
Find Deal
Sun, Dec 7 - Wed, Dec 31
United Airlines Logo
6:00 am - 10:46 amONT-SBP
4h 46m1 stop
United Airlines Logo
5:15 am - 12:43 pmSBP-ONT
7h 28m1 stop
$279United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
6:00 am - 10:46 amONT-SBP
4h 46m1 stop
United Airlines Logo
5:15 am - 6:00 pmSBP-ONT
12h 45m2 stops
$284United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
6:00 am - 12:19 pmONT-SBP
6h 19m1 stop
United Airlines Logo
8:33 am - 12:37 pmSBP-ONT
4h 04m1 stop
$309United Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
Alaska Airlines Logo
1:26 pm - 4:38 pmONT-SBP
27h 12m1 stop
Alaska Airlines Logo
5:18 pm - 5:11 pmSBP-ONT
23h 53m1 stop
$312Alaska Airlines
Find Deal
Thu, Dec 11 - Wed, Dec 17
United Airlines Logo
6:00 am - 12:18 pmONT-SBP
6h 18m1 stop
United Airlines Logo
5:00 am - 12:38 pmSBP-ONT
7h 38m1 stop
$334United Airlines
Find Deal
Sun, Dec 7 - Thu, Dec 25
United Airlines Logo
6:00 am - 12:18 pmONT-SBP
6h 18m1 stop
United Airlines Logo
2:21 pm - 5:43 pmSBP-ONT
3h 22m1 stop
$368United Airlines
Find Deal
Sun, Dec 7 - Mon, Dec 29
American Airlines Logo
6:17 am - 11:18 pmONT-SBP
17h 01m2 stops
American Airlines Logo
7:11 pm - 8:53 amSBP-ONT
13h 42m1 stop
$1,385American Airlines
Find Deal
Sat, Dec 13 - Sun, Dec 14
American Airlines Logo
9:59 am - 11:33 pmONT-SBP
13h 34m2 stops
American Airlines Logo
9:55 am - 6:19 pmSBP-ONT
8h 24m1 stop
$1,525American Airlines
Find Deal
Sat, Nov 29 - Sat, Dec 6
American Airlines Logo
6:11 am - 11:26 pmONT-SBP
17h 15m2 stops
American Airlines Logo
9:53 am - 12:03 pmSBP-ONT
26h 10m1 stop
$1,560American Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19

United Airlines flights from Ontario to San Luis Obispo

Our best United Airlines deals on Ontario to San Luis Obispo flight tickets
United Airlines
Dec 7
ONT6:00 amOntario
6h 18m
1 stop
SBP12:18 pmSan Luis Obispo County
Dec 31
SBP6:23 pmSan Luis Obispo County
4h 10m
1 stop
ONT10:33 pmOntario
$278
Find similar
United Airlines
Mar 7
ONT6:00 amOntario
4h 46m
1 stop
SBP10:46 amSan Luis Obispo County
Mar 10
SBP5:15 amSan Luis Obispo County
7h 28m
1 stop
ONT12:43 pmOntario
$279
Find similar
United Airlines
Mar 7
ONT6:00 amOntario
4h 46m
1 stop
SBP10:46 amSan Luis Obispo County
Mar 10
SBP5:15 amSan Luis Obispo County
12h 45m
2 stops
ONT6:00 pmOntario
$284
Find similar

Alaska Airlines flights from Ontario to San Luis Obispo

Our best Alaska Airlines deals on Ontario to San Luis Obispo flight tickets
Alaska Airlines
Dec 11
ONT1:26 pmOntario
27h 12m
1 stop
SBP4:38 pmSan Luis Obispo County
Dec 17
SBP5:18 pmSan Luis Obispo County
23h 53m
1 stop
ONT5:11 pmOntario
$312
Find similar
Alaska Airlines
Nov 11
ONT11:59 amOntario
7h 02m
1 stop
SBP7:01 pmSan Luis Obispo County
Nov 12
SBP5:27 pmSan Luis Obispo County
6h 29m
1 stop
ONT11:56 pmOntario
$1,012
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 2, 2025.
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

Price

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sun 12/7

6:00 am-12:18 pm

1 stop6h 18m

San Luis Obispo County

Wed 12/31

6:23 pm-10:33 pm

1 stop4h 10m

$278

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 3/7

6:00 am-10:46 am

1 stop4h 46m

San Luis Obispo County

Tue 3/10

5:15 am-12:43 pm

1 stop7h 28m

$279

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 3/7

6:00 am-10:46 am

1 stop4h 46m

San Luis Obispo County

Tue 3/10

5:15 am-6:00 pm

2 stops12h 45m

$284

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 11/15

6:00 am-12:19 pm

1 stop6h 19m

San Luis Obispo County

Wed 11/19

8:33 am-12:37 pm

1 stop4h 04m

$309

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Thu 12/11

1:26 pm-4:38 pm

1 stop27h 12m

San Luis Obispo County

Wed 12/17

5:18 pm-5:11 pm

1 stop23h 53m

$312

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sun 12/7

6:00 am-12:18 pm

1 stop6h 18m

San Luis Obispo County

Thu 12/25

5:00 am-12:38 pm

1 stop7h 38m

$334

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sun 12/7

6:00 am-12:18 pm

1 stop6h 18m

San Luis Obispo County

Mon 12/29

2:21 pm-5:43 pm

1 stop3h 22m

$368

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 12/13

6:17 am-11:18 pm

2 stops17h 01m

San Luis Obispo County

Sun 12/14

7:11 pm-8:53 am

1 stop13h 42m

$1,385

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 11/29

9:59 am-11:33 pm

2 stops13h 34m

San Luis Obispo County

Sat 12/6

9:55 am-6:19 pm

1 stop8h 24m

$1,525

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 11/15

6:11 am-11:26 pm

2 stops17h 15m

San Luis Obispo County

Wed 11/19

9:53 am-12:03 pm

1 stop26h 10m

$1,560

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to San Luis Obispo from

How to get the cheapest flight ticket from Ontario 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 day to depart on your flight to San Luis Obispo?

On average, the least expensive day to fly to San Luis Obispo from Ontario is on a Thursday. momondo users have found tickets for Thursday departures for as low as $272. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to San Luis Obispo for around $407.

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

Flying to San Luis Obispo from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $269 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $319 on average. Flights to San Luis Obispo from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Ontario to San Luis Obispo

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to San Luis Obispo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to San Luis Obispo (ONT to SBP) flight deals and tips

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

Direct flights

None
There are no direct flights from Ontario to San Luis Obispo. There are no popular flight routes from Ontario to San Luis Obispo.
Search flight deals

  • How far is Ontario to San Luis Obispo County by plane?

    There are 190.5 mi between Ontario and San Luis Obispo County. A reasonable flight in good conditions will take 3h 52m.

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

    Prices for flights from Ontario Airport to San Luis Obispo County Airport are updated daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to San Luis Obispo County Airport.

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

    The necessary travel and health documents for your San Luis Obispo County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to San Luis Obispo?

Best airlines flying from Ontario to San Luis Obispo

Compare and see reviews for airlines that fly from Ontario to San Luis Obispo with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $218Free CancellationRating
7.4
8,997 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
Paso Robles
Cambria
Avila Beach
San Simeon
Cayucos
Arroyo Grande
Atascadero
Grover Beach

Why use momondo?

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

Finding the right flight to San Luis Obispo from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Luis Obispo quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Ontario to San Luis Obispo flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to San Luis Obispo.

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

If you are not ready to book a flight from Ontario to San Luis Obispo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Luis Obispo and let you know when they change.

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