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Cheap flights from Ontario to San Luis Obispo from $188

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 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to San Luis Obispo

Cheap round-trip flights

United Airlines Logo
6:36 pm - 10:14 pmONT-SBP
3h 38m1 stop
United Airlines Logo
8:34 am - 12:13 pmSBP-ONT
3h 39m1 stop
$229United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
6:00 am - 12:19 pmONT-SBP
6h 19m1 stop
United Airlines Logo
6:25 pm - 10:51 pmSBP-ONT
4h 26m1 stop
$249United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
United Airlines Logo
6:00 am - 9:49 amONT-SBP
3h 49m1 stop
United Airlines Logo
5:15 am - 12:33 pmSBP-ONT
7h 18m1 stop
$284United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
6:38 pm - 10:05 pmONT-SBP
3h 27m1 stop
United Airlines Logo
6:25 pm - 10:51 pmSBP-ONT
4h 26m1 stop
$319United Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
1:15 pm - 8:52 pmONT-SBP
7h 37m1 stop
United Airlines Logo
6:22 pm - 10:52 pmSBP-ONT
4h 30m1 stop
$354United Airlines
Find Deal
Thu, Oct 2 - Thu, Oct 9
Alaska Airlines Logo
10:59 am - 4:47 pmONT-SBP
5h 48m1 stop
Alaska Airlines Logo
7:56 pm - 12:05 pmSBP-ONT
16h 09m1 stop
$406Alaska Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 1
American Airlines Logo
6:15 am - 4:06 pmONT-SBP
9h 51m1 stop
American Airlines Logo
7:11 pm - 4:01 pmSBP-ONT
20h 50m1 stop
$498American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Alaska Airlines Logo
7:43 pm - 6:58 pmONT-SBP
23h 15m1 stop
Alaska Airlines Logo
7:50 pm - 12:37 pmSBP-ONT
16h 47m1 stop
$607Alaska Airlines
Find Deal
Thu, Oct 16 - Sun, Oct 19
American Airlines Logo
6:15 am - 11:26 pmONT-SBP
17h 11m2 stops
American Airlines Logo
7:11 pm - 9:01 amSBP-ONT
13h 50m1 stop
$1,248American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
American Airlines Logo
7:16 pm - 4:17 pmONT-SBP
21h 01m2 stops
American Airlines Logo
6:05 am - 4:00 pmSBP-ONT
9h 55m1 stop
$1,490American Airlines
Find Deal
Thu, Oct 2 - Thu, Oct 9

United Airlines flights from Ontario to San Luis Obispo

Our best United Airlines deals on Ontario to San Luis Obispo flight tickets
United Airlines
Sep 30
ONT6:36 pmOntario
3h 38m
1 stop
SBP10:14 pmSan Luis Obispo County
Oct 4
SBP8:34 amSan Luis Obispo County
3h 39m
1 stop
ONT12:13 pmOntario
$229
Find similar
United Airlines
Nov 19
ONT6:00 amOntario
6h 19m
1 stop
SBP12:19 pmSan Luis Obispo County
Nov 23
SBP6:25 pmSan Luis Obispo County
4h 26m
1 stop
ONT10:51 pmOntario
$249
Find similar
United Airlines
Mar 7
ONT6:00 amOntario
3h 49m
1 stop
SBP9:49 amSan Luis Obispo County
Mar 10
SBP5:15 amSan Luis Obispo County
7h 18m
1 stop
ONT12:33 pmOntario
$284
Find similar

American Airlines flights from Ontario to San Luis Obispo

Our best American Airlines deals on Ontario to San Luis Obispo flight tickets
American Airlines
Oct 31
ONT6:15 amOntario
9h 51m
1 stop
SBP4:06 pmSan Luis Obispo County
Nov 2
SBP7:11 pmSan Luis Obispo County
20h 50m
1 stop
ONT4:01 pmOntario
$498
Find similar
American Airlines
Oct 31
ONT6:15 amOntario
17h 11m
2 stops
SBP11:26 pmSan Luis Obispo County
Nov 2
SBP7:11 pmSan Luis Obispo County
13h 50m
1 stop
ONT9:01 amOntario
$1,248
Find similar
American Airlines
Oct 2
ONT7:16 pmOntario
21h 01m
2 stops
SBP4:17 pmSan Luis Obispo County
Oct 9
SBP6:05 amSan Luis Obispo County
9h 55m
1 stop
ONT4:00 pmOntario
$1,490
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 September 16, 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

Tue 9/30

6:36 pm-10:14 pm

1 stop3h 38m

San Luis Obispo County

Sat 10/4

8:34 am-12:13 pm

1 stop3h 39m

$229

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Wed 11/19

6:00 am-12:19 pm

1 stop6h 19m

San Luis Obispo County

Sun 11/23

6:25 pm-10:51 pm

1 stop4h 26m

$249

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 3/7

6:00 am-9:49 am

1 stop3h 49m

San Luis Obispo County

Tue 3/10

5:15 am-12:33 pm

1 stop7h 18m

$284

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Thu 11/20

6:38 pm-10:05 pm

1 stop3h 27m

San Luis Obispo County

Mon 11/24

6:25 pm-10:51 pm

1 stop4h 26m

$319

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Thu 10/2

1:15 pm-8:52 pm

1 stop7h 37m

San Luis Obispo County

Thu 10/9

6:22 pm-10:52 pm

1 stop4h 30m

$354

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 11/1

10:59 am-4:47 pm

1 stop5h 48m

San Luis Obispo County

Sat 11/1

7:56 pm-12:05 pm

1 stop16h 09m

$406

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 10/31

6:15 am-4:06 pm

1 stop9h 51m

San Luis Obispo County

Sun 11/2

7:11 pm-4:01 pm

1 stop20h 50m

$498

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Thu 10/16

7:43 pm-6:58 pm

1 stop23h 15m

San Luis Obispo County

Sun 10/19

7:50 pm-12:37 pm

1 stop16h 47m

$607

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 10/31

6:15 am-11:26 pm

2 stops17h 11m

San Luis Obispo County

Sun 11/2

7:11 pm-9:01 am

1 stop13h 50m

$1,248

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Thu 10/2

7:16 pm-4:17 pm

2 stops21h 01m

San Luis Obispo County

Thu 10/9

6:05 am-4:00 pm

1 stop9h 55m

$1,490

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Luis Obispo from

How to get the cheapest flight ticket from 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 $469.

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 $288 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 $369 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 27m.

  • 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 $233Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights

Traveling to a place near San Luis Obispo?

Book flights to San Luis Obispo if you plan to visit one of these locations
Pismo Beach
Morro Bay
Cambria
Paso Robles
Avila Beach
San Simeon
Cayucos
Arroyo Grande
Atascadero
Grover Beach

Why use momondo?

Why should I use momondo to find a flight deal from 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.

An easier way to manage your San Luis Obispo trip

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