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Cheap flights from Ontario to San Luis Obispo from $234

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 8/11. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
6:08 am - 11:53 am
ONT
-
SBP
5h 45m
1 stop
United Airlines Logo
2:20 pm - 6:11 pm
SBP
-
ONT
3h 51m
1 stop
$289United Airlines
Fri, Aug 14 - Sun, Aug 16
United Airlines Logo
6:39 pm - 10:12 pm
ONT
-
SBP
3h 33m
1 stop
United Airlines Logo
7:04 pm - 12:27 am
SBP
-
ONT
5h 23m
1 stop
$309United Airlines
Wed, Aug 5 - Sun, Aug 9
United Airlines Logo
8:03 am - 12:02 pm
ONT
-
SBP
3h 59m
1 stop
United Airlines Logo
2:15 pm - 5:46 pm
SBP
-
ONT
3h 31m
1 stop
$349United Airlines
Wed, Oct 14 - Sat, Oct 17
United Airlines Logo
1:29 pm - 9:10 pm
ONT
-
SBP
7h 41m
1 stop
United Airlines Logo
2:15 pm - 8:15 pm
SBP
-
ONT
6h 00m
1 stop
$359United Airlines
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
1:50 pm - 7:47 pm
ONT
-
SBP
5h 57m
1 stop
United Airlines Logo
2:20 pm - 8:01 pm
SBP
-
ONT
5h 41m
1 stop
$374United Airlines
Fri, Aug 7 - Sat, Aug 15
United Airlines Logo
1:50 pm - 7:47 pm
ONT
-
SBP
5h 57m
1 stop
United Airlines Logo
6:25 am - 12:12 pm
SBP
-
ONT
5h 47m
1 stop
$379United Airlines
Fri, Aug 7 - Sun, Aug 9
United Airlines Logo
1:50 pm - 7:47 pm
ONT
-
SBP
5h 57m
1 stop
United Airlines Logo
5:00 am - 12:50 pm
SBP
-
ONT
7h 50m
1 stop
$389United Airlines
Fri, Aug 7 - Thu, Aug 13
Alaska Airlines Logo
4:27 pm - 2:44 pm
ONT
-
SBP
22h 17m
2 stops
Alaska Airlines Logo
3:24 pm - 3:47 pm
SBP
-
ONT
48h 23m
2 stops
$439Alaska Airlines
Tue, Sep 8 - Tue, Sep 15
Alaska Airlines Logo
4:27 pm - 11:50 pm
ONT
-
SBP
7h 23m
2 stops
Alaska Airlines Logo
3:24 pm - 3:47 pm
SBP
-
ONT
24h 23m
2 stops
$460Alaska Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
6:00 am - 11:44 am
ONT
-
SBP
5h 44m
1 stop
United Airlines Logo
8:00 am - 12:01 pm
SBP
-
ONT
4h 01m
1 stop
$464United Airlines
Tue, Nov 24 - Mon, Nov 30

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United Airlines flights from Ontario to San Luis Obispo

Our best United Airlines deals on Ontario to San Luis Obispo flight tickets
United Airlines
Aug 14
ONT6:08 amOntario
5h 45m
1 stop
SBP11:53 amSan Luis Obispo County
Aug 16
SBP2:20 pmSan Luis Obispo County
3h 51m
1 stop
ONT6:11 pmOntario
$289
United Airlines
Aug 5
ONT6:39 pmOntario
3h 33m
1 stop
SBP10:12 pmSan Luis Obispo County
Aug 9
SBP7:04 pmSan Luis Obispo County
5h 23m
1 stop
ONT12:27 amOntario
$309
United Airlines
Jul 31
ONT1:50 pmOntario
5h 57m
1 stop
SBP7:47 pmSan Luis Obispo County
Aug 2
SBP6:25 amSan Luis Obispo County
5h 47m
1 stop
ONT12:12 pmOntario
$339

Alaska Airlines flights from Ontario to San Luis Obispo

Our best Alaska Airlines deals on Ontario to San Luis Obispo flight tickets
Alaska Airlines
Sep 8
ONT4:27 pmOntario
22h 17m
2 stops
SBP2:44 pmSan Luis Obispo County
Sep 15
SBP3:24 pmSan Luis Obispo County
48h 23m
2 stops
ONT3:47 pmOntario
$439
Alaska Airlines
Aug 27
ONT4:27 pmOntario
7h 23m
2 stops
SBP11:50 pmSan Luis Obispo County
Aug 31
SBP3:24 pmSan Luis Obispo County
24h 23m
2 stops
ONT3:47 pmOntario
$460
Alaska Airlines
Sep 8
ONT4:27 pmOntario
22h 17m
2 stops
SBP2:44 pmSan Luis Obispo County
Sep 15
SBP6:43 pmSan Luis Obispo County
24h 20m
1 stop
ONT7:03 pmOntario
$471

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 July 26, 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

Price

Cheapest round-trip

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 8/14

6:08 am-11:53 am

1 stop5h 45m

San Luis Obispo County

Sun 8/16

2:20 pm-6:11 pm

1 stop3h 51m

$289

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Wed 8/5

6:39 pm-10:12 pm

1 stop3h 33m

San Luis Obispo County

Sun 8/9

7:04 pm-12:27 am

1 stop5h 23m

$309
Quickest round-trip

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Wed 10/14

8:03 am-12:02 pm

1 stop3h 59m

San Luis Obispo County

Sat 10/17

2:15 pm-5:46 pm

1 stop3h 31m

$349

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 10/31

1:29 pm-9:10 pm

1 stop7h 41m

San Luis Obispo County

Wed 11/4

2:15 pm-8:15 pm

1 stop6h 00m

$359

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 8/7

1:50 pm-7:47 pm

1 stop5h 57m

San Luis Obispo County

Sat 8/15

2:20 pm-8:01 pm

1 stop5h 41m

$374

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 8/7

1:50 pm-7:47 pm

1 stop5h 57m

San Luis Obispo County

Sun 8/9

6:25 am-12:12 pm

1 stop5h 47m

$379

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 8/7

1:50 pm-7:47 pm

1 stop5h 57m

San Luis Obispo County

Thu 8/13

5:00 am-12:50 pm

1 stop7h 50m

$389

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Tue 9/8

4:27 pm-2:44 pm

2 stops22h 17m

San Luis Obispo County

Tue 9/15

3:24 pm-3:47 pm

2 stops48h 23m

$439

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Thu 8/27

4:27 pm-11:50 pm

2 stops7h 23m

San Luis Obispo County

Mon 8/31

3:24 pm-3:47 pm

2 stops24h 23m

$460

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Tue 11/24

6:00 am-11:44 am

1 stop5h 44m

San Luis Obispo County

Mon 11/30

8:00 am-12:01 pm

1 stop4h 01m

$464

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 month to fly to San Luis Obispo?

In general, November is the cheapest month to fly from Ontario to San Luis Obispo. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of July is another great option to travel to San Luis Obispo, with average flight prices from Ontario averaging around $0.

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 Friday. momondo users have found tickets for Friday departures for as low as $239. 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 $537.

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

Flying to San Luis Obispo from Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $239 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $284 on average. Flights to San Luis Obispo from Ontario at noon 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

Fastest flight time

3h 59m

Direct flights

None
The fastest flight from Ontario to San Luis Obispo takes 3h 59m
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

Frequently asked questions about flying from Ontario to San Luis Obispo

  • 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 59m.

  • 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 $239Free CancellationRating
7.4
10,040 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
San Simeon
Avila Beach
Arroyo Grande
Cayucos
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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