ONT - SBP

$197 Find Cheap Flights from Ontario to San Luis Obispo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to San Luis Obispo departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Luis Obispo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to San Luis Obispo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to San Luis Obispo, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$309
United Airlines
Sat 4/18Wed 4/22
ONT - SBP • 1 stop
Cheapest one-way
$197
Alaska Airlines
Fri 5/1
ONT - SBP • 1 stop
Top airlines
United Airlines
Cheapest • from $309 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and San Luis Obispo. You'll need at least 1 connection.
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Luis Obispo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to San Luis Obispo (ONT-SBP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to San Luis Obispo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to San Luis Obispo

Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
6:00 am - 10:38 am
ONT
-
SBP
4h 38m
1 stop
United Airlines Logo
8:02 am - 12:20 pm
SBP
-
ONT
4h 18m
1 stop
$309United Airlines
Sat, May 23 - Tue, May 26
United Airlines Logo
6:39 pm - 10:13 pm
ONT
-
SBP
3h 34m
1 stop
United Airlines Logo
7:04 pm - 10:37 pm
SBP
-
ONT
3h 33m
1 stop
$314United Airlines
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
11:05 am - 5:56 pm
ONT
-
SBP
6h 51m
1 stop
United Airlines Logo
6:15 am - 9:56 am
SBP
-
ONT
3h 41m
1 stop
$349United Airlines
Sat, May 9 - Tue, May 12
Alaska Airlines Logo
3:26 pm - 10:18 pm
ONT
-
SBP
6h 52m
1 stop
Alaska Airlines Logo
7:20 am - 10:32 pm
SBP
-
ONT
15h 12m
1 stop
$353Alaska Airlines
Tue, May 5 - Sat, May 9
Alaska Airlines Logo
3:26 pm - 10:18 pm
ONT
-
SBP
6h 52m
1 stop
Alaska Airlines Logo
5:36 pm - 11:48 pm
SBP
-
ONT
6h 12m
1 stop
$358Alaska Airlines
Tue, May 5 - Sat, May 9
Alaska Airlines Logo
3:26 pm - 1:47 pm
ONT
-
SBP
22h 21m
1 stop
Alaska Airlines Logo
5:36 pm - 11:48 pm
SBP
-
ONT
6h 12m
1 stop
$363Alaska Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
6:59 pm - 11:59 pm
ONT
-
SBP
5h 00m
1 stop
United Airlines Logo
2:15 pm - 5:52 pm
SBP
-
ONT
3h 37m
1 stop
$369United Airlines
Sat, Apr 25 - Sun, Apr 26
United Airlines Logo
6:00 am - 10:38 am
ONT
-
SBP
4h 38m
1 stop
United Airlines Logo
6:15 am - 9:56 am
SBP
-
ONT
3h 41m
1 stop
$370United Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
6:59 pm - 11:59 pm
ONT
-
SBP
5h 00m
1 stop
United Airlines Logo
5:00 am - 5:52 pm
SBP
-
ONT
12h 52m
2 stops
$374United Airlines
Tue, Apr 21 - Sat, Apr 25
United Airlines Logo
1:27 pm - 5:56 pm
ONT
-
SBP
4h 29m
1 stop
United Airlines Logo
2:12 pm - 5:47 pm
SBP
-
ONT
3h 35m
1 stop
$379United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to San Luis Obispo flights

Get data-powered insights and trends into flights from Ontario to San Luis Obispo to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to San Luis Obispo?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to San Luis Obispo were found on United Airlines ($309) and Alaska Airlines ($353).

Which airlines fly non-stop between Ontario and San Luis Obispo?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Ontario to San Luis Obispo.

There is just one airline that flies from Ontario to San Luis Obispo direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $233.

Find deals

Good to know

Cheapest flight$197
Flight from Ontario to San Luis Obispo

When to book flights from Ontario to San Luis Obispo

Are your dates flexible? Find out the best times to travel from Ontario to San Luis Obispo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to San Luis Obispo

  • What is the cheapest flight from Ontario to San Luis Obispo?

    In the last 3 days, the lowest price for a flight from Ontario to San Luis Obispo was $197 for a one-way ticket and $309 for a round-trip.

  • Do I need a passport to fly between Ontario and San Luis Obispo?

    A passport is not required to fly from Ontario to San Luis Obispo.

  • Which aircraft models fly most regularly from Ontario to San Luis Obispo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to San Luis Obispo?

    Star Alliance is the only airline alliance operating flights between Ontario and San Luis Obispo.

  • How does KAYAK find such low prices on flights from Ontario to San Luis Obispo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Luis Obispo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Luis Obispo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Luis Obispo from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to San Luis Obispo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Luis Obispo with an airline and back to Ontario with another airline. Booking your flights between Ontario and SBP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Luis Obispo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Luis Obispo from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to San Luis Obispo

 
See real verified KAYAK customer reviews for airlines flying from Ontario to San Luis Obispo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to San Luis Obispo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9548 reviews
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
8.1Crew
Airline reviews

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

10.0 ExcellentMitchell, Apr 2026
EWR - SFO
Read more United Airlines reviews

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Terrible, if possible won't be flying again anytime soon!

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Everything you need to know for your flight from Ontario to San Luis Obispo

Information on your arrival and departure airports

Ontario (ONT)
San Luis Obispo (SBP)