ONT - SBP

$155 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 10/22. 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

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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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

Thu, Aug 28 - Sun, Aug 31
United Airlines Logo
6:00 am - 12:18 pmONT-SBP
6h 18m1 stop
United Airlines Logo
2:19 pm - 5:37 pmSBP-ONT
3h 18m1 stop
$263United Airlines
Find Deal
Sat, Sep 13 - Mon, Sep 15
United Airlines Logo
5:10 am - 1:36 pmONT-SBP
8h 26m1 stop
United Airlines Logo
2:19 pm - 5:37 pmSBP-ONT
3h 18m1 stop
$284United Airlines
Find Deal
Sat, Sep 6 - Sun, Sep 7
United Airlines Logo
6:00 am - 12:18 pmONT-SBP
6h 18m1 stop
United Airlines Logo
3:45 pm - 8:33 pmSBP-ONT
4h 48m1 stop
$324United Airlines
Find Deal
Sat, Sep 13 - Sun, Sep 14
United Airlines Logo
5:10 am - 1:36 pmONT-SBP
8h 26m1 stop
United Airlines Logo
2:19 pm - 12:13 pmSBP-ONT
21h 54m1 stop
$347United Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
United Airlines Logo
1:34 pm - 9:12 pmONT-SBP
7h 38m1 stop
United Airlines Logo
2:22 pm - 5:37 pmSBP-ONT
3h 15m1 stop
$349United Airlines
Find Deal
Fri, Sep 26 - Sun, Sep 28
Alaska Airlines Logo
7:40 pm - 5:37 pmONT-SBP
21h 57m1 stop
Alaska Airlines Logo
6:29 pm - 10:44 amSBP-ONT
16h 15m1 stop
$400Alaska Airlines
Find Deal
Sat, Sep 13 - Mon, Sep 15
 Logo
6:50 pm - 1:32 pmONT-SBP
18h 42m2 stops
 Logo
2:19 pm - 5:37 pmSBP-ONT
3h 18m1 stop
Wed, Nov 26 - Sun, Nov 30
Alaska Airlines Logo
6:00 am - 7:00 pmONT-SBP
13h 00m1 stop
Alaska Airlines Logo
7:53 pm - 9:40 amSBP-ONT
13h 47m1 stop
$869Alaska Airlines
Find Deal
Sat, Sep 13 - Sun, Sep 14
American Airlines Logo
10:20 am - 1:32 pmONT-SBP
27h 12m2 stops
American Airlines Logo
4:35 pm - 4:05 pmSBP-ONT
23h 30m1 stop
$1,255American Airlines
Find Deal
Sat, Sep 13 - Sun, Sep 14
American Airlines Logo
10:20 am - 1:32 pmONT-SBP
27h 12m2 stops
American Airlines Logo
4:57 pm - 4:05 pmSBP-ONT
23h 08m2 stops
$1,862American Airlines
Find Deal
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 ($263) and Alaska Airlines ($400).

Good to know

Cheapest flight$155
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 $155 for a one-way ticket and $263 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, and oneworld are the airline alliances operating flights between Ontario and San Luis Obispo, with oneworld being the most commonly used for this route.

  • 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 8925 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

The flight was comfortable with the exit row and great service

10.0 ExcellentMark, Aug 2025HNL - LAX
Read more United Airlines reviews

The flight was comfortable with the exit row and great service

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

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

Information on your arrival and departure airports

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