Cheap flights from Oakland, California to Ontario from $49
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oakland, California to Ontario departing on 5/27. 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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Southwest flights from Oakland, California to Ontario
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How to get the cheapest flight ticket from Oakland, California to Ontario
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 Ontario?
In general, July is the cheapest month to fly from Oakland, California to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $85. If you aren’t able to travel during the month of July, then book flights to Ontario from Oakland, California during June instead. Flights to Ontario in June, while not as cheap as those in July, still average around $106.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Monday when prices can be found for as low as $104. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Oakland, California to Ontario for around $126.
What is the cheapest time of day to depart on your flight to Ontario?
At noon is the cheapest time of day to fly from Oakland, California to Ontario when you can find flight prices for as low as $101. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $154 on average. Flights to Ontario from Oakland, California in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Oakland to Ontario flight route?
Fly from Oakland to Ontario for the best Oakland - Ontario flight prices
How far in advance should I book a flight to Ontario?
You are more likely to see cheaper flights to Ontario from Oakland, California when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $213 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Oakland, California for as low as $143 on momondo.
What cabin class options are available on Oakland to Ontario flights?
There are 1 cabin classes available to choose from on Oakland to Ontario 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 Oakland to Ontario?
Southwest, Alaska Airlines, and Delta are the most popular carriers operating from Oakland to Ontario
What airlines fly to Ontario?
Frontier, Alaska Airlines and Spirit Airlines are the top three most popular airlines that fly to Ontario from Oakland, California according to our data. Frontier is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 12 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
How many flights depart from Oakland, California to Ontario on average per day?
The number of flights available between Oakland, California and Ontario is 3 per day as of April 2025. The most frequent departure time is 6:00PM, with 43% of daily flights leaving at noon.
How many flights depart from Oakland, California to Ontario on average per week?
The number of flights available between Oakland, California and Ontario is 24 per week as of April 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.
When to book flights from Oakland, California to Ontario
Cheap Oakland, California to Ontario (OAK to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Oakland, California to Ontario
Best Price Found | $49 |
|---|---|
Fastest flight time | 1h 20m |
Direct flights | Mon, Tue, Thu, Fri, Sat and Sun |
Airports in Ontario | 1 airport |
How far is Oakland to Ontario by plane?
The distance between Oakland and Ontario is about 365.2 mi. By plane, this route typically takes 1h 20m.
When did momondo last update prices for flights from Oakland Airport to Ontario Airport?
Prices for flights from Oakland Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Oakland Airport to Ontario Airport?
The number of operators available for flights from Oakland Airport to Ontario Airport is 5 as of April 2025.
How old do you have to be to fly from Oakland Airport to Ontario 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 Oakland Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Oakland, California to Ontario?
momondo data reveals that the most frequently booked plane model on the route from Oakland, California to Ontario is Airbus A320neo, representing 23.91% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 14.25%, Boeing 737-700 Passenger/BBJ1 (winglets) at 13.29%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 13.16%.
What is the most popular airline from Oakland, California to Ontario?
momondo data reveals that the most frequently booked airline on the route from Oakland, California to Ontario is Southwest, representing 70% of all bookings. The subsequent popular airlines are Frontier at 14%, Spirit Airlines at 10%, and Alaska Airlines at 3%.
Best airlines flying from Oakland, California to Ontario
Compare and see reviews for airlines that fly from Oakland, California to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $29 | Free Cancellation | Rating 5.9 3,283 reviews | |||
| PriceFrom $45 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $46 | Free Cancellation | Rating 6.3 7,940 reviews | |||
| PriceFrom $107 | Free Cancellation | Rating 8.0 9,911 reviews | |||
| PriceFrom $198 | Free Cancellation | Rating 8.0 4,287 reviews |
Southwest Flights From Oakland, California to Ontario
The lowest priced Southwest flight from Oakland, California to Ontario from the last 72 hours was $198. Generally, Southwest has 24 flights on this route every week with an average price of $276. Southwest is rated 8.0/10 by our users.
Why use momondo?
Why should I use momondo to find a flight deal from Oakland to Ontario?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Oakland to Ontario. momondo saves you time and could save you money on your trip.
Can I find flights from Oakland to Ontario with flexible booking policies on momondo?
Flights from Oakland to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Oakland to Ontario?
momondo helps you find the best flight between Oakland and Ontario 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 Oakland to Ontario right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Oakland to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.