Cheap flights from Ontario to San Francisco from $39
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 Francisco departing on 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Alaska Airlines flights from Ontario to Oakland, California
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How to get the cheapest flight ticket from Ontario to Oakland, California
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 month to fly to Oakland, California?
The month of July is, on average, the cheapest month to fly to Oakland, California from Ontario, with most prices found around $208. If you aren’t able to travel to Oakland, California during the month of July, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $213.
What is the cheapest day to depart on your flight to Oakland, California?
According to our data, Tuesday is the cheapest day to fly to Oakland, California from Ontario. The lowest ticket price found for a Tuesday departure recently was $153. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Oakland, California for around $239.
What is the cheapest time of day to depart on your flight to Oakland, California?
In the evening is the cheapest time of day to fly from Ontario to Oakland, California when you can find flight prices for as low as $119. Flying to Oakland, California in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $241.
What is the cheapest Ontario to Oakland flight route?
Fly from Ontario to Oakland for the best Ontario - Oakland flight prices
How far in advance should I book a flight to Oakland, California?
You are more likely to see cheaper flights to Oakland, California from Ontario when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to Oakland, California for around $254 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oakland, California from Ontario for as low as $138 on momondo.
What cabin class options are available on Ontario to Oakland flights?
There are 1 cabin classes available to choose from on Ontario to Oakland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to Oakland?
Southwest, Alaska Airlines, and Hawaiian Airlines are the most popular carriers operating from Ontario to Oakland
What airlines fly to Oakland, California?
Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Oakland, California from Ontario according to our data. Frontier is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Oakland, California. Keep in mind that there are 11 different airlines that fly to Oakland, California on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ontario to Oakland, California on average per day?
As of June 2025, there are 4 flights per day flying from Ontario to Oakland, California. The most common time of day flights depart is 6:00PM, with 35% of flights taking off in the evening.
How many flights depart from Ontario to Oakland, California on average per week?
The number of flights available between Ontario and Oakland, California is 31 per week as of June 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.
When to book flights from Ontario to Oakland, California
Cheap Ontario to Oakland, California (ONT to OAK) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Oakland, California
Best Price Found | $39 |
|---|---|
Fastest flight time | 1h 15m |
Direct flights | Every day |
Airports in Oakland, California | 1 airport |
How far is Ontario to Oakland by plane?
Oakland is 365.2 mi away from Ontario. A reasonable flight in good conditions will take 1h 15m.
When did momondo last update prices for flights from Ontario Airport to Oakland Airport?
Prices for flights from Ontario Airport to Oakland Airport refresh daily.
How many operators does momondo search for flights from Ontario Airport to Oakland Airport?
As of June 2025, there are 4 operators available to choose from for flights from Ontario Airport to Oakland Airport.
How old do you have to be to fly from Ontario Airport to Oakland Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Oakland Airport.
What documentation or ID do you need to fly to Oakland Airport?
The necessary travel and health documents for your Oakland 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 plane model from Ontario to Oakland, California?
momondo data reveals that the most frequently booked plane model on the route from Ontario to Oakland, California is Boeing 737-800 Passenger/BBJ2 (winglets), representing 12.65% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 12.45%, Airbus A320neo at 11.85%, and Boeing 737-700 Passenger/BBJ1 (winglets) at 9.74%.
What is the most popular airline from Ontario to Oakland, California?
momondo data reveals that the most frequently booked airline on the route from Ontario to Oakland, California is Southwest, representing 83% of all bookings. The subsequent popular airlines are Spirit Airlines at 9% and Frontier at 8%.
Best airlines flying from Ontario to Oakland, California
Compare and see reviews for airlines that fly from Ontario to Oakland, California with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $38 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $43 | Free Cancellation | Rating 6.3 8,060 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 8.0 4,278 reviews |
Southwest Flights From Ontario to Oakland, California
Southwest flight deals from Ontario to Oakland, California start from $178 round-trip. Over the 31 Southwest flights for this route in a normal week, average airfare is usually $270 round-trip - but some users have found much cheaper deals with momondo.
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Oakland?
It is quick and easy to find Ontario to Oakland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Oakland that suits you.
Can I find flights from Ontario to Oakland with flexible booking policies on momondo?
momondo does allow users to show only those flights to Oakland from Ontario which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Ontario to Oakland?
momondo helps you find the best flight between Ontario and Oakland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Ontario to Oakland right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ontario to Oakland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.