There are most likely no direct flights on the Oakland — Ontario route
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Oakland to Ontario. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
In different months, ticket prices from Oakland to Ontario vary: minimum — $103 (November 2026), maximum — $417 (June 2027). Typically, the flight costs $160–$183.
A non-stop flight is the most convenient and comfortable way to fly from Oakland to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Flight prices from Oakland to Ontario are steadily rising: from October 2026 to June 2027, ticket costs increased by 218%. The sooner you book, the better the deal.
The most significant price increase was from November 2026 to June 2027 — up 304%. The best time to fly is October 2026–November 2026, when the average price is $117. In May 2027–June 2027, tickets cost around $308.
Given the rising prices, it's best not to delay your purchase. Flying in October 2026–November 2026 can save you up to 62% compared to the most expensive months.
Price variation across months on this route is 50.2%. Your choice of departure month significantly affects the total flight cost.
There are most likely no direct flights on the Oakland — Ontario route
All airports
San Francisco — Ontario
10/30/2026
Departure
Direct flight
F91160
starting at $82
San Francisco — Ontario
10/28/2026
Departure
Direct flight
UA5592
starting at $262
starting at $82
starting at $262
The Oakland — Ontario route is served by multiple airlines, including Frontier Airlines and United Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $82, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.
The cheapest flight ticket from Oakland to Ontario according to data for the last 48 hours costs $82
Often the best time to buy tickets from Oakland to Ontario is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Oakland to Ontario can be found flying in these months: November, October, December.
The fastest flights from Oakland to Ontario start from 1 hour 26 minutes in the air.
The following airlines operate direct flights on the route Oakland — Ontario: Frontier Airlines, United Airlines
We couldn't find any special offers for flights from Oakland to Ontario
The cheapest one-way flight from Oakland to Ontario departs on 10/30/2026, is operated by Frontier Airlines and costs $82
There is no information about the cheapest roundtrip flight from Oakland to Ontario
Fastest flight from Oakland to Ontario takes 1h 26m
There are direct flights on this route 2 days a week: We and Fr
The distance between Oakland and Ontario is 589km (365 miles). There are 32 direct flights from Oakland to Ontario. Oakland and Ontario are in the same time zone. Flights from Oakland begin at 6:00 AM. The latest flight from Oakland departs at 9:45 PM