Cheap flights from San Jose to Ontario from £117

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Explore flight deals to Ontario

1 stop
Tue, May 20
San Jose SJCOntario ONT
£117
Search
1 stop
Tue, May 20
San Jose SJCOntario ONT
£122
Search
1 stop
Tue, May 20
San Jose SJCOntario ONT
£122
Search
1 stop
Sun, May 18
San Jose SJCOntario ONT
£132
Search
1 stop
Sun, May 18
San Jose SJCOntario ONT
£132
Search
1 stop
Mon, May 19
San Jose SJCOntario ONT
£134
Search

Prices updated:

Not happy with the results? Try some of our useful filters

Search by stops

Search by carrier

Search by price

Search by departure date

1 stop
Mon, May 19 – Wed, May 21
San Jose SJCOntario ONT
£248
Search
1 stop
Mon, May 19 – Wed, May 21
San Jose SJCOntario ONT
£256
Search
1 stop
Mon, May 19 – Wed, May 21
San Jose SJCOntario ONT
£260
Search
1 stop
Mon, May 19 – Wed, May 21
San Jose SJCOntario ONT
£260
Search
1 stop
Mon, May 19 – Wed, May 21
San Jose SJCOntario ONT
£260
Search
1 stop
Tue, May 20 – Sat, May 24
San Jose SJCOntario ONT
£268
Search

Prices updated:

Not happy with the results? Try some of our useful filters

Search by stops

Search by carrier

Search by price

Search by departure date

How much do flights to Ontario cost?

Cheapest one-way trip

£117

Cheapest round-trip

£248

Average round-trip

£285

Most popular airline

Alaska Airlines

Key info about flying to Ontario

Depart from
San Jose International
Arrive to
Ontario International
Average flights per week
81
Flight distance
Worth visiting
Griffith Observatory

Check-in for a flight from San Jose to Ontario

NameCarrier codeIATA CodePassport needed during booking
Alaska AirlinesASAASNo
Hawaiian AirlinesHALHANo
United AirlinesUALUANo

Online check-in is not available for these airlines.

Weather in Ontario

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January18°C7°C
February18°C7°C
March19°C8°C
April23°C10°C
May25°C12°C
June29°C16°C
July33°C19°C
August33°C20°C
September32°C18°C
October27°C15°C
November22°C10°C
December17°C7°C
Hottest Month
33°C
August
Coldest month
7°C
February
Sunny days
340
days per year

14 day forecast

Friday
25 Apr
87%
14°C10°C
2 May
25°C13°C
Saturday
26 Apr
85%
11°C9°C
3 May
25°C14°C
Sunday
27 Apr
16°C8°C
4 May
25°C14°C
Monday
28 Apr
21°C8°C
5 May
27°C13°C
Tuesday
29 Apr
24°C12°C
6 May
26°C16°C
Wednesday
30 Apr
22°C13°C
7 May
27°C14°C
Thursday
1 May
23°C12°C
8 May
25°C13°C

Ontario travel tips

See the famous bald eagle in the Angeles National Forest near Ontario

If you need to escape from the city, head to the Angeles National Forest near Ontario. Locals can take a tent and stay there for a few days and sleep in front of white-picked mountains. By the way, to see the famous bald eagle takes just a few hours here. Bear in mind there are no supermarkets nearby! Prepare in advance.

Book a visit to the San Antonio Winery in Ontario in advance and take home the wine glass after degustation

The San Antonio Winery at 2802 S Milliken Avenue in Ontario has existed since 1917. Book a visit ahead (six people tops) and order “The Daily Artisan Series.” It is a package for $15 with four highly limited reserve wines. And you can take home the wine glass, as a cool souvenir.

Enjoy a film from the car at the Mission Tiki Drive-In in Ontario

If you travel around Ontario by car, the Mission Tiki Drive-In is a great pastime in the evening. Buy a ticket (from $1 per child and $9 per adult) and enjoy two films shown back to back (one ticket includes two films). Snacks may cost a little bit higher than in the supermarket. It is common among locals to buy snacks in the nearby supermarkets like El Super.

The most popular airlines for this route are Alaska Airlines, Hawaiian Airlines, and United Airlines. San Jose and Ontario have 81 direct flights per week.

Frequently asked questions

What are the most popular routes to and from San Jose?
Travelers frequently search for route combinations, such as San Jose and Guadalajara, Las Vegas, Dallas, London, San Diego, Los Angeles, Morelia, Tokyo, Honolulu, Mexico City, Seattle, Portland, New York, León, Denver, San Francisco, Puerto Vallarta, Monterrey, El Paso, Orlando.
What are the most popular routes to and from Ontario?
Travelers frequently search for route combinations, such as Ontario and Dallas, Las Vegas, San Francisco, Guadalajara, Denver, Portland, Seattle, Edinburgh, London, Phoenix, Minneapolis, Sacramento, Boise, Salt Lake City, Orlando, Chicago, Houston, Honolulu, Cleveland, Indianapolis.
What airports are near San Jose?
The main airport in San Jose is San Jose International. It is also served by San Francisco International, Sacramento International, San Jose International, Oakland International, Fresno Yosemite International, Stockton Metropolitan, Charles M. Schulz–Sonoma County, Monterey Regional, Merced Regional.
What airports are near Ontario?
The main airport in Ontario is Ontario International. It is also served by Tijuana International, San Diego International, John Wayne, Ontario International, Palm Springs International, Hollywood Burbank, Long Beach, Meadows Field, Santa Barbara Municipal, Imperial County.
Which airlines fly between San Jose and Ontario?
Currently, you can fly between San Jose and Ontario with Alaska Airlines, Hawaiian Airlines, United Airlines.
When’s the best time to travel between San Jose and Ontario?
If you don’t have specific dates for your trip between San Jose and Ontario, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between San Jose and Ontario?
Traveling between San Jose and Ontario, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.
How many airports are there near San Jose?
There are a number of airports in and around San Jose. The main one is San Jose International and other nearby airports include San Francisco International, Sacramento International, San Jose International, Oakland International, Fresno Yosemite International, Stockton Metropolitan, Charles M. Schulz–Sonoma County, Monterey Regional, Merced Regional
How many airports are there near Ontario?
There are a number of airports in and around Ontario. The main one is Ontario International and other nearby airports include Tijuana International, San Diego International, John Wayne, Ontario International, Palm Springs International, Hollywood Burbank, Long Beach, Meadows Field, Santa Barbara Municipal, Imperial County.
What time do nonstop (direct) flights between San Jose and Ontario depart?
What time do nonstop (direct) flights between San Jose and Ontario arrive?
What time do flights between San Jose and Ontario depart?
What time do flights between San Jose and Ontario arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

Search flightsSearch direct flights

Explore alternative trips

Flights from San Jose

Flights to Ontario

Popular routes

The nearest countries with flights to Ontario

Here is a list of countries people are flying from

Other destination countries from San Jose

Here is a list of countries people are flying to

Airports near San Jose

Airports near Ontario

Search flights
Find the best connection from San Jose to Ontario

Search, compare, and book flights to get there.

Search flights

Get more out of Kiwi.com with our mobile application

Find out more about the Kiwi.com app on kiwi.com/mobile . With our app you can search for the best plane connections. The Kiwi.com mobile app offers cheap flights, access to hidden features, travel hacks and special offers.

Download boarding passes

One-click booking

Get exclusive offers and prices

Mobile trip notifications

Company

Terms & ConditionsTerms of UsePrivacy PolicyMedia RoomSecurityLegal and whistleblowing disclosuresContact us

Platform

AboutTravel hacksPeopleCompany infoJobs

Features

Kiwi.com GuaranteeDisruption protectionMobile appSite mapFrequently asked questions

Discover

Kiwi.com
We hack the system,
you fly for less