Cheap flights from Ontario to San Jose from $158
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 Jose departing on 7/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to San Jose
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Alaska Airlines flights from Region of Ontario to San Jose
Our best Alaska Airlines deals on Region of Ontario to San Jose flight tickets
American Airlines flights from Region of Ontario to San Jose
Our best American Airlines deals on Region of Ontario to San Jose flight tickets
See travel insights to San Jose from
How to get the cheapest flight ticket from Region of Ontario to San Jose
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 San Jose?
In general, March is the cheapest month to fly from Region of Ontario to San Jose. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $307. If you aren’t able to travel to San Jose during the month of March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $318.
What is the cheapest day to depart on your flight to San Jose?
The cheapest day to depart on your flight to San Jose is on a Thursday when prices can be found for as low as $393. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to San Jose on Saturday is $478.
What is the cheapest time of day to depart on your flight to San Jose?
Our most recent data shows that the best time of day to fly to San Jose is in the evening. Flights from Region of Ontario to San Jose during this time can be as low as $297. In contrast, the most expensive time of day to depart to San Jose is in the afternoon when prices are around $420.
How far in advance should I book a flight to San Jose?
You are more likely to see cheaper flights to San Jose from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to San Jose for around $387 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Jose from Region of Ontario for as low as $336 on momondo.
What is the cheapest airline that flies from Ontario to San Jose?
Delta, American Airlines, and United Airlines are the most popular carriers operating from Ontario to San Jose
What airlines fly to San Jose?
Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Jose from Region of Ontario according to our data. Air Canada is the first choice among our users, with 44% of people opting to fly with this airline when traveling to San Jose. Keep in mind that there are 7 different airlines that fly to San Jose on a routine basis, so you have a few additional options to choose from.
Cheap Region of Ontario to San Jose flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to San Jose
When did momondo last update prices for flights from Ontario to San Jose Airport?
Prices for flights from Ontario to San Jose Airport refresh daily.
How many operators does momondo search for flights from Ontario to San Jose Airport?
The number of operators available for flights from Ontario to San Jose Airport is 4 as of June 2025.
How old do you have to be to fly from Ontario to San Jose Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to San Jose Airport.
What documentation or ID do you need to fly to San Jose Airport?
The travel and health documents required for your trip to San Jose 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 San Jose Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Region of Ontario to San Jose
Compare and see reviews for airlines that fly from Region of Ontario to San Jose with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $232 | Free Cancellation | Rating 7.1 9,572 reviews | |||
| PriceFrom $287 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $288 | Free Cancellation | Rating 7.4 8,810 reviews | |||
| PriceFrom $316 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to San Jose?
It is quick and easy to find Ontario to San Jose 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 San Jose that suits you.
Can I find flights from Ontario to San Jose with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ontario to San Jose flights to just show those with flexible booking policies.
How can momondo help me find flights from Ontario to San Jose?
momondo helps you find the best flight between Ontario and San Jose 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 San Jose right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ontario to San Jose flights. All you need is a valid email address and we will do the rest; it is that quick and easy.