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Find cheap flights from Oakland to Ontario from $104

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oakland to Ontario departing on 6/17. 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
0 bags
Mon 6/3
Mon 6/10

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Best Ontario Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Ottawa
Ottawa2 stops$488

Good to know

Cheapest flight

$104
Flight from Oakland to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Oakland to Ontario?

    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 Oakland to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Oakland 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 Oakland to Ontario?

    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 Ontario with an airline and back to Oakland with another airline.

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

    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 Ontario from Oakland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ontario

  • Morning departure is around 17% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airlines flying from Oakland to Ontario

 
Need help choosing which airline to fly with from Oakland to Ontario? 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.
8.0
DeltaOverall score based on 10848 reviews
8.6Crew
7.9Comfort
7.4Food
8.2Boarding
8.0Entertainment
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

Kayak does not know that spirit airlines charged me $70 to fly. But the bag check-in was $89 each way. This is false advertising to lure people. Spirit airlines sends bunch of emails after flight purchases to buy wifi, better seats, priority boarding, secure reserved seats. This is false advertising. Up front pricing. I would of flown jet blue or Alaska airlines.

One hour late taking off. Concerning, very hard landing. Uncomfortable seats with no recline. Extremely slow baggage claim. Very professional, knowledgeable flight attendants. Brand new, very clean plane.

Can’t say there was anything I particularly liked. Seats were very tight, leather wrapped plastic. I followed up a much longer and cheaper trip from Honolulu on southwest, everything was phenomenal, this flight was the exact opposite. Blows my mind they charge for water of all things. One of the attendants seemed very rude, I watched a taller gentleman a couple rows forward with his knees pressed into the back of the seat ahead, while the woman in that seat leaned forward the entire flight, I’m sure because she could feel his knees. I’ll be avoiding spirit like the plague from here forward.

Didn’t make the connecting flight due to a delay on our first flight.

I felt scam to have to pay $50 additional for my carry on luggage which was free for my other airline.

Enjoyed the experience, on time flights, friendly staff the WiFi was intros d kept cutting out.

Awful experience. Both flights were delayed several times with weather but also crew members being the official cause. The vouchers are unusable and insufficient ($50 voucher to fly the same crappy airline is a joke for putting me on a red-eye that landed at 3:00 am). The aircrafts were old and uncomfortable (have a real pocket on the seat, for crying out loud!).

Its so random that they only allow 40 pounds on checked bags when all airlines take 55. They then charge you for each 10 extra pounds, so my checked suitcase was $130 and the flight $30 ... its like whattt, im for sure not traveling with Spirit again

It wasn’t as horrible as I would have expected, however, to not provide water and change so much for bags is a ripoff to say the least.

Book cheap flights from Oakland to Ontario

Recent round-trip flight deals

6/10Mon
1 stop
30h 14mOAK-YYZ
6/12Wed
1 stop
20h 02mYYZ-OAK
$201
6/10Mon
1 stop
30h 14mOAK-YYZ
6/12Wed
2 stops
14h 58mYYZ-OAK
$262
6/3Mon
2 stops
27h 10mOAK-YYZ
6/10Mon
1 stop
18h 12mYYZ-OAK
$316
6/1Sat
2 stopsAlaska Airlines
16h 14mOAK-YYZ
6/11Tue
1 stopAlaska Airlines
11h 19mYYZ-OAK
$602
9/5Thu
1 stopDelta
7h 49mOAK-YYZ
9/30Mon
2 stopsDelta
12h 05mYYZ-OAK
$603
6/1Sat
1 stopAlaska Airlines
29h 30mOAK-YYZ
6/11Tue
1 stopAlaska Airlines
11h 19mYYZ-OAK
$634
6/8Sat
1 stopDelta
7h 52mOAK-YYZ
6/9Sun
1 stopDelta
9h 03mYYZ-OAK
$648
7/3Wed
1 stopSun Country Air
14h 33mOAK-YYZ
7/7Sun
1 stopSun Country Air
11h 26mYYZ-OAK
$728
7/10Wed
2 stopsAeromexico
21h 35mOAK-YYZ
7/17Wed
2 stopsAeromexico
40h 53mYYZ-OAK
$2,166
8/11Sun
2 stopsAeromexico
21h 10mOAK-YYZ
8/15Thu
2 stopsAeromexico
40h 53mYYZ-OAK
$2,209

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Recent one-way flight deals

6/17Mon
1 stop
30h 14mOAK-YYZ
$104
6/17Mon
3 stops
31h 18mOAK-YYZ
$113
6/26Wed
1 stop
14h 28mOAK-YYZ
$116
6/26Wed
2 stops
15h 41mOAK-YYZ
$122
6/20Thu
1 stopSun Country Air
8h 46mOAK-YYZ
$187
7/3Wed
1 stopSun Country Air
14h 33mOAK-YYZ
$217
6/8Sat
2 stopsAlaska Airlines
16h 14mOAK-YYZ
$252
5/26Sun
1 stopDelta
7h 54mOAK-YYZ
$297
7/2Tue
2 stopsDelta
15h 29mOAK-YYZ
$302
5/18Sat
2 stopsAlaska Airlines
16h 14mOAK-YYZ
$365

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Last minute flights from Oakland to Ontario

Last minute flight, train and bus deals

5/7Tue
multi-stop
16h 17mOAK-YYZ
5/9Thu
multi-stop
17h 52mYYZ-OAK
$411
5/7Tue
multi-stop
16h 17mOAK-YYZ
5/9Thu
multi-stop
16h 51mYYZ-OAK
$436
5/7Tue
multi-stop
7h 34mOAK-YYZ
5/9Thu
multi-stop
17h 52mYYZ-OAK
$437
5/7Tue
multi-stop
21h 42mOAK-YYZ
5/9Thu
multi-stop
42h 45mYYZ-OAK
$491
5/7Tue
multi-stopDelta
7h 54mOAK-YYZ
5/8Wed
multi-stopDelta
8h 56mYYZ-OAK
$1,282
5/7Tue
multi-stopDelta
8h 19mOAK-YYZ
5/8Wed
multi-stopDelta
8h 56mYYZ-OAK
$1,292
5/7Tue
multi-stopDelta
8h 19mOAK-YYZ
5/8Wed
multi-stopDelta
8h 52mYYZ-OAK
$1,297
5/7Tue
multi-stopAlaska Airlines
13h 55mOAK-YYZ
5/8Wed
multi-stopAlaska Airlines
14h 45mYYZ-OAK
$1,535
5/7Tue
multi-stopDelta
7h 54mOAK-YYZ
5/8Wed
multi-stopDelta
8h 56mYYZ-OAK
$1,577

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Oakland - Ontario Flights

Departure:

Oakland (OAK)United States

Return flight deals:

Ontario - Oakland

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