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Cheap flights from Ontario to San Luis Obispo from $178

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 10/31. 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
1:42 pm - 7:52 pmONT-SBP
6h 10m1 stop
United Airlines Logo
5:15 am - 12:32 pmSBP-ONT
7h 17m1 stop
$279United Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26
United Airlines Logo
1:42 pm - 7:52 pmONT-SBP
6h 10m1 stop
United Airlines Logo
2:19 pm - 8:33 pmSBP-ONT
6h 14m1 stop
$284United Airlines
Find Deal
Fri, Aug 22 - Sat, Aug 30
United Airlines Logo
1:19 pm - 5:20 pmONT-SBP
4h 01m1 stop
United Airlines Logo
2:19 pm - 8:33 pmSBP-ONT
6h 14m1 stop
$289United Airlines
Find Deal
Sat, Aug 16 - Wed, Aug 20
Alaska Airlines Logo
6:00 am - 5:37 pmONT-SBP
11h 37m1 stop
Alaska Airlines Logo
6:29 pm - 10:44 amSBP-ONT
16h 15m1 stop
$322Alaska Airlines
Find Deal
Wed, Aug 20 - Fri, Aug 22
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
$324United Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
Alaska Airlines Logo
5:45 pm - 4:55 pmONT-SBP
23h 10m1 stop
Alaska Airlines Logo
5:38 pm - 4:53 pmSBP-ONT
23h 15m1 stop
$361Alaska Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
Alaska Airlines Logo
7:22 pm - 5:37 pmONT-SBP
22h 15m1 stop
Alaska Airlines Logo
6:29 pm - 10:44 amSBP-ONT
16h 15m1 stop
$515Alaska Airlines
Find Deal
Thu, Aug 28 - Mon, Sep 1
American Airlines Logo
6:17 am - 6:36 pmONT-SBP
12h 19m1 stop
American Airlines Logo
4:57 pm - 4:24 pmSBP-ONT
23h 27m2 stops
$1,214American Airlines
Find Deal
Wed, Aug 20 - Fri, Aug 22
American Airlines Logo
1:10 pm - 12:03 pmONT-SBP
22h 53m1 stop
American Airlines Logo
2:03 pm - 9:19 amSBP-ONT
19h 16m2 stops
$1,319American Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
American Airlines Logo
4:54 pm - 4:17 pmONT-SBP
23h 23m2 stops
American Airlines Logo
6:00 am - 11:32 amSBP-ONT
29h 32m1 stop
$1,326American Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24

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 19
ONT1:42 pmOntario
6h 10m
1 stop
SBP7:52 pmSan Luis Obispo County
Aug 26
SBP5:15 amSan Luis Obispo County
7h 17m
1 stop
ONT12:32 pmOntario
$279
Find similar
United Airlines
Aug 22
ONT1:42 pmOntario
6h 10m
1 stop
SBP7:52 pmSan Luis Obispo County
Aug 30
SBP2:19 pmSan Luis Obispo County
6h 14m
1 stop
ONT8:33 pmOntario
$284
Find similar
United Airlines
Aug 16
ONT1:19 pmOntario
4h 01m
1 stop
SBP5:20 pmSan Luis Obispo County
Aug 20
SBP2:19 pmSan Luis Obispo County
6h 14m
1 stop
ONT8:33 pmOntario
$289
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
Aug 20
ONT6:17 amOntario
12h 19m
1 stop
SBP6:36 pmSan Luis Obispo County
Aug 22
SBP4:57 pmSan Luis Obispo County
23h 27m
2 stops
ONT4:24 pmOntario
$1,214
Find similar
American Airlines
Oct 3
ONT1:10 pmOntario
22h 53m
1 stop
SBP12:03 pmSan Luis Obispo County
Oct 5
SBP2:03 pmSan Luis Obispo County
19h 16m
2 stops
ONT9:19 amOntario
$1,319
Find similar
American Airlines
Aug 22
ONT4:54 pmOntario
23h 23m
2 stops
SBP4:17 pmSan Luis Obispo County
Aug 24
SBP6:00 amSan Luis Obispo County
29h 32m
1 stop
ONT11:32 amOntario
$1,326
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 July 31, 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 8/19

1:42 pm-7:52 pm

1 stop6h 10m

San Luis Obispo County

Tue 8/26

5:15 am-12:32 pm

1 stop7h 17m

$279

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 8/22

1:42 pm-7:52 pm

1 stop6h 10m

San Luis Obispo County

Sat 8/30

2:19 pm-8:33 pm

1 stop6h 14m

$284

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Sat 8/16

1:19 pm-5:20 pm

1 stop4h 01m

San Luis Obispo County

Wed 8/20

2:19 pm-8:33 pm

1 stop6h 14m

$289

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Wed 8/20

6:00 am-5:37 pm

1 stop11h 37m

San Luis Obispo County

Fri 8/22

6:29 pm-10:44 am

1 stop16h 15m

$322

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 10/3

1:15 pm-8:52 pm

1 stop7h 37m

San Luis Obispo County

Sun 10/5

6:22 pm-10:52 pm

1 stop4h 30m

$324

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 10/10

5:45 pm-4:55 pm

1 stop23h 10m

San Luis Obispo County

Mon 10/13

5:38 pm-4:53 pm

1 stop23h 15m

$361

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Thu 8/28

7:22 pm-5:37 pm

1 stop22h 15m

San Luis Obispo County

Mon 9/1

6:29 pm-10:44 am

1 stop16h 15m

$515

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Wed 8/20

6:17 am-6:36 pm

1 stop12h 19m

San Luis Obispo County

Fri 8/22

4:57 pm-4:24 pm

2 stops23h 27m

$1,214

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 10/3

1:10 pm-12:03 pm

1 stop22h 53m

San Luis Obispo County

Sun 10/5

2:03 pm-9:19 am

2 stops19h 16m

$1,319

OntarioSan Luis Obispo

ONT - SBP

ONTSBP

Ontario

Fri 8/22

4:54 pm-4:17 pm

2 stops23h 23m

San Luis Obispo County

Sun 8/24

6:00 am-11:32 am

1 stop29h 32m

$1,326

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 $249. 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 $437.

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 $320 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

Best Price Found

$178

Fastest flight time

3h 27m

Direct flights

None

Airports in San Luis Obispo

1 airport
The best one-way flight to San Luis Obispo from Ontario in the past 72 hours is $178. The best round-trip flight deal from Ontario to San Luis Obispo found on momondo in the last 72 hours is $279.
The fastest flight from Ontario to San Luis Obispo takes 3h 27m
There are no direct flights from Ontario to San Luis Obispo. Popular non-direct route for this connection is Ontario Airport - San Luis Obispo County Airport.
There is 1 airport near San Luis Obispo: San Luis Obispo County (SBP)
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  • 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
8,900 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
Atascadero
Arroyo Grande
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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