What are the cheapest airlines to fly from San Jose to Region of Ontario one-way?

For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 207. Users have also found prices from C$ 214 and C$ 216 on Air Canada and American Airlines, respectively.

What are the most popular routes from San Jose to Region of Ontario?

While some choose either San Jose - Montreal Pierre Elliott Trudeau Intl or San Jose - Ottawa, San Jose - Toronto Pearson Intl is the most popular route from San Jose to Region of Ontario.

How far in advance should I book a flight from San Jose to Region of Ontario?

Travellers have found it’s best to book a flight 53 days in advance to save up to 157% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Jose to Region of Ontario 1-2 weeks in advance for as low as C$ 389, or C$ 740 for flights within the next 24 hours.

What is the cheapest month to fly from San Jose to Region of Ontario?

September can be a great time to fly to Region of Ontario from San Jose with a flight ticket averaging about C$ 678. Cheapflights users have found deals in the month of September for as cheap as C$ 310. The most expensive prices can be found in the month of December.

What airport do you fly from for flights from San Jose to Ontario?

For a flight from San Jose to Ontario, you will be flying from San Jose. San Jose (SJC) is just 4.6 km from the centre of the city.

Can I find deals for flights from San Jose to Ontario that include hotel bookings?

Yes. In addition to deals on San Jose to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Jose to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Jose to Ontario.

Can I find deals for business class flights from San Jose to Ontario?

Yes. Cheapflights offers flight deals from San Jose to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 131+ Flights from San Jose to Ontario

Cheap flight deals from San Jose to Ontario

Round-trip from	C$ 285
One-way from	C$ 131
Popular in	December
Cheapest in	September
Average price	C$ 644

30/4-7/5
3 total stops
25h 20m total
San Jose to Ontario

Search Deals

9/6
3 total stops
36h 21m total
San Jose to Ontario

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (C$ 53 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from San Jose to Ontario

Cheapest flights from San Jose to Ontario
Explore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Wed 30/42:04 p.m.SJC - YYZ

1 stop12h 51mMultiple Airlines

Wed 7/59:45 a.m.YYZ - SJC

1 stop8h 48mMultiple Airlines

Deal found 15/4C$ 285

Tue 6/52:50 p.m.SJC - YUL

3 stops30h 47mMultiple Airlines

Tue 13/57:00 a.m.YUL - SJC

2 stops19h 29mMultiple Airlines

Deal found 15/4C$ 438

Fri 30/52:30 p.m.SJC - YUL

2 stops17h 10mAir Canada

Fri 6/68:05 a.m.YUL - SJC

1 stop12h 17mAir Canada

Deal found 15/4C$ 459

Thu 1/51:11 p.m.SJC - YYZ

2 stops21h 31mUnited Airlines

Fri 2/54:18 p.m.YYZ - SJC

1 stop8h 07mUnited Airlines

Deal found 15/4C$ 473

Sat 31/55:55 a.m.SJC - YYZ

1 stop7h 45mDelta

Mon 9/65:50 p.m.YYZ - SJC

1 stop8h 52mDelta

Deal found 14/4C$ 491

Wed 30/46:27 p.m.SJC - YYZ

1 stop15h 29mAir Canada

Sat 3/512:00 p.m.YYZ - SJC

2 stops12h 25mAir Canada

Deal found 15/4C$ 499

Wed 30/44:30 p.m.SJC - YYZ

2 stops19h 30mAlaska Airlines

Mon 5/54:45 p.m.YYZ - SJC

2 stops20h 04mAlaska Airlines

Deal found 15/4C$ 512

Sat 24/57:00 a.m.SJC - YUL

1 stop13h 26mUnited Airlines

Sat 31/58:05 a.m.YUL - SJC

1 stop12h 17mUnited Airlines

Deal found 15/4C$ 524

Fri 30/51:27 p.m.SJC - YUL

1 stop6h 52mDelta

Fri 6/612:44 p.m.YUL - SJC

1 stop13h 16mDelta

Deal found 15/4C$ 526

Wed 10/912:55 p.m.SJC - YUL

2 stops21h 35mAmerican Airlines

Sun 14/95:29 p.m.YUL - SJC

2 stops19h 23mAmerican Airlines

Deal found 15/4C$ 567

Fri 25/47:20 p.m.SJC - YYZ

2 stops12h 00mAmerican Airlines

Sat 26/41:29 p.m.YYZ - SJC

2 stops12h 18mAmerican Airlines

Deal found 15/4C$ 577

Fri 30/511:00 a.m.SJC - YTZ

3 stops28h 17mMultiple Airlines

Fri 6/67:00 a.m.YTZ - SJC

2 stops30h 05mMultiple Airlines

Deal found 15/4C$ 587

Best flights from San Jose to Ontario
Discover carefully curated flight deals from San Jose to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 April 2025.

Wed 30/42:04 p.m.SJC - YYZ

1 stop12h 51mMultiple Airlines

Wed 7/52:00 p.m.YYZ - SJC

2 stops12h 29mMultiple Airlines

Deal found 15/4C$ 285

Thu 1/51:11 p.m.SJC - YYZ

2 stops21h 31mUnited Airlines

Fri 2/54:18 p.m.YYZ - SJC

1 stop8h 07mUnited Airlines

Deal found 15/4C$ 473

Sat 31/55:55 a.m.SJC - YYZ

1 stop7h 45mDelta

Mon 9/65:50 p.m.YYZ - SJC

1 stop8h 52mDelta

Deal found 14/4C$ 491

Wed 30/46:27 p.m.SJC - YYZ

1 stop15h 29mAir Canada

Sat 3/512:00 p.m.YYZ - SJC

2 stops12h 25mAir Canada

Deal found 15/4C$ 499

Wed 30/44:30 p.m.SJC - YYZ

2 stops19h 30mAlaska Airlines

Mon 5/54:45 p.m.YYZ - SJC

2 stops20h 04mAlaska Airlines

Deal found 15/4C$ 512

Fri 25/47:20 p.m.SJC - YYZ

2 stops12h 00mAmerican Airlines

Sat 26/41:29 p.m.YYZ - SJC

2 stops12h 18mAmerican Airlines

Deal found 15/4C$ 577

Mon 2/62:20 p.m.SJC - YYZ

2 stops13h 32mWestJet

Fri 6/612:00 p.m.YYZ - SJC

2 stops13h 13mWestJet

Deal found 14/4C$ 638

Fri 2/56:45 p.m.SJC - YUL

1 stop17h 41mUnited Airlines

Thu 8/58:05 a.m.YUL - SJC

1 stop16h 20mUnited Airlines

Deal found 14/4C$ 524

Fri 19/96:39 p.m.SJC - YUL

1 stop17h 47mAir Canada

Tue 23/98:05 a.m.YUL - SJC

1 stop12h 38mAir Canada

Deal found 15/4C$ 526

Sun 27/47:54 p.m.SJC - YTZ

2 stops19h 59mMultiple Airlines

Wed 30/410:40 a.m.YTZ - SJC

3 stops23h 49mMultiple Airlines

Deal found 14/4C$ 533

Wed 21/56:30 a.m.SJC - YUL

2 stops13h 46mDelta

Mon 26/56:15 a.m.YUL - SJC

1 stop9h 17mDelta

Deal found 15/4C$ 538

Sat 24/56:00 a.m.SJC - YUL

2 stops15h 43mMultiple Airlines

Sat 31/56:45 a.m.YUL - SJC

3 stops19h 44mMultiple Airlines

Deal found 15/4C$ 558

Last-minute flights from San Jose to Ontario
Discover last-minute flight deals from San Jose to Ontario. Data last updated 15 April 2025 and is based on user searches.

Sun 20/41:45 p.m.SJC - YYZ

2 stops13h 32mWestJet

Wed 23/412:00 p.m.YYZ - SJC

2 stops13h 49mWestJet

Deal found 14/4C$ 1,110

Tue 22/47:54 p.m.SJC - YYZ

1 stop22h 53mMultiple Airlines

Tue 29/47:25 p.m.YYZ - SJC

1 stop20h 44mMultiple Airlines

Deal found 13/4C$ 469

Tue 22/46:35 a.m.SJC - YYZ

1 stop9h 10mUnited Airlines

Tue 29/45:30 p.m.YYZ - SJC

1 stop8h 21mUnited Airlines

Deal found 15/4C$ 605

Thu 24/46:15 a.m.SJC - YYZ

1 stop12h 42mDelta

Sun 27/41:27 p.m.YYZ - SJC

1 stop11h 29mDelta

Deal found 14/4C$ 553

Thu 24/48:34 a.m.SJC - YTZ

2 stops31h 19mMultiple Airlines

Sun 27/48:55 p.m.YTZ - SJC

2 stops19h 14mMultiple Airlines

Deal found 14/4C$ 692

Fri 25/47:20 p.m.SJC - YYZ

2 stops12h 00mAmerican Airlines

Sat 26/41:29 p.m.YYZ - SJC

2 stops12h 18mAmerican Airlines

Deal found 15/4C$ 577

Wed 30/42:04 p.m.SJC - YYZ

1 stop12h 51mMultiple Airlines

Wed 7/59:45 a.m.YYZ - SJC

1 stop8h 48mMultiple Airlines

Deal found 15/4C$ 285

Wed 30/46:27 p.m.SJC - YYZ

1 stop15h 29mAir Canada

Sat 3/512:00 p.m.YYZ - SJC

2 stops12h 25mAir Canada

Deal found 15/4C$ 499

Wed 30/44:30 p.m.SJC - YYZ

2 stops19h 30mAlaska Airlines

Mon 5/54:45 p.m.YYZ - SJC

2 stops20h 04mAlaska Airlines

Deal found 15/4C$ 512

Thu 1/51:11 p.m.SJC - YYZ

2 stops21h 31mUnited Airlines

Fri 2/54:18 p.m.YYZ - SJC

1 stop8h 07mUnited Airlines

Deal found 15/4C$ 473

Fri 2/56:29 a.m.SJC - YYZ

2 stops14h 57mWestJet

Fri 23/56:30 a.m.YYZ - SJC

2 stops14h 15mWestJet

Deal found 15/4C$ 647

Tue 6/52:50 p.m.SJC - YUL

3 stops30h 47mMultiple Airlines

Tue 13/57:00 a.m.YUL - SJC

2 stops19h 29mMultiple Airlines

Deal found 15/4C$ 438

One-way flights from San Jose to Ontario
Search for one-way flight options from San Jose to Ontario. Find affordable one-way fares based on user searches. Data last updated 15 April 2025.

Mon 9/62:30 p.m.SJC - YYZ

3 stops36h 21mMultiple Airlines

Deal found 14/4C$ 131

Thu 29/54:33 p.m.SJC - YOW

3 stops28h 48mMultiple Airlines

Deal found 13/4C$ 195

Wed 30/46:15 a.m.SJC - YYZ

1 stop7h 44mDelta

Deal found 15/4C$ 207

Wed 30/43:30 p.m.SJC - YYZ

2 stops15h 28mAir Canada

Deal found 14/4C$ 214

Fri 16/52:15 p.m.SJC - YYZ

1 stop19h 15mAmerican Airlines

Deal found 14/4C$ 216

Wed 21/54:28 p.m.SJC - YHM

2 stops29h 13mMultiple Airlines

Deal found 15/4C$ 216

Wed 8/1012:30 p.m.SJC - YUL

1 stop7h 56mAir Canada

Deal found 15/4C$ 222

Wed 8/101:05 p.m.SJC - YUL

2 stops15h 44mUnited Airlines

Deal found 15/4C$ 229

Sun 29/67:09 p.m.SJC - YUL

2 stops13h 21mAmerican Airlines

Deal found 14/4C$ 231

Fri 16/56:45 p.m.SJC - YYZ

2 stops11h 34mUnited Airlines

Deal found 14/4C$ 232

Fri 30/56:00 a.m.SJC - YTZ

3 stops33h 17mMultiple Airlines

Deal found 14/4C$ 232

Tue 20/54:28 p.m.SJC - YUL

3 stops17h 02mMultiple Airlines

Deal found 14/4C$ 253

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Jose to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 30/4

2:04 p.m.-5:55 a.m.

1 stop12h 51m

Toronto Pearson Intl

Wed 7/5

2:00 p.m.-11:29 p.m.

2 stops12h 29m

C$ 285

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Thu 1/5

1:11 p.m.-1:42 p.m.

2 stops21h 31m

Toronto Pearson Intl

Fri 2/5

4:18 p.m.-9:25 p.m.

1 stop8h 07m

C$ 473

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Sat 31/5

5:55 a.m.-4:40 p.m.

1 stop7h 45m

Toronto Pearson Intl

Mon 9/6

5:50 p.m.-11:42 p.m.

1 stop8h 52m

C$ 491

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 30/4

6:27 p.m.-12:56 p.m.

1 stop15h 29m

Toronto Pearson Intl

Sat 3/5

12:00 p.m.-9:25 p.m.

2 stops12h 25m

C$ 499

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 30/4

4:30 p.m.-3:00 p.m.

2 stops19h 30m

Toronto Pearson Intl

Mon 5/5

4:45 p.m.-9:49 a.m.

2 stops20h 04m

C$ 512

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Fri 2/5

6:45 p.m.-3:26 p.m.

1 stop17h 41m

Montreal Pierre Elliott Trudeau Intl

Thu 8/5

8:05 a.m.-9:25 p.m.

1 stop16h 20m

C$ 524

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Fri 19/9

6:39 p.m.-3:26 p.m.

1 stop17h 47m

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

8:05 a.m.-5:43 p.m.

1 stop12h 38m

C$ 526

San JoseToronto

SJC - YTZ

SJCYTZ

San Jose

Sun 27/4

7:54 p.m.-6:53 p.m.

2 stops19h 59m

Toronto Island

Wed 30/4

4:10 p.m.-7:29 a.m.

2 stops18h 19m

C$ 533

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Wed 21/5

6:30 a.m.-11:16 p.m.

2 stops13h 46m

Montreal Pierre Elliott Trudeau Intl

Mon 26/5

6:15 a.m.-12:32 p.m.

1 stop9h 17m

C$ 538

San JoseMontreal

SJC - YUL

SJCYUL

San Jose

Sat 24/5

6:00 a.m.-12:43 a.m.

2 stops15h 43m

Montreal Pierre Elliott Trudeau Intl

Sat 31/5

6:45 a.m.-11:29 p.m.

3 stops19h 44m

C$ 558

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 40 results

Best time to book a flight from San Jose to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Jose with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Jose to Ontario

What is the cheapest month to book a flight from San Jose to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from San Jose to Region of Ontario (average of C$ 167). Flying from San Jose to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SJC to ON?

When flying from San Jose to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from San Jose to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,871 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,871 reviews

Alaska Airlines

8.0

Very good

9,871 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,918 reviews

Alaska Airlines

8.0

Very good

9,871 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,658 reviews

Alaska Airlines

8.0

Very good

9,871 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,871 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet

7.2

Good

2,805 reviews

Alaska Airlines

8.0

Very good

9,871 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What airport do you fly from for flights from San Jose to Ontario?
For a flight from San Jose to Ontario, you will be flying from San Jose. San Jose (SJC) is just 4.6 km from the centre of the city.
What are the cheapest airlines to fly from San Jose to Region of Ontario one-way?
For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 207. Users have also found prices from C$ 214 and C$ 216 on Air Canada and American Airlines, respectively.
What are the most popular routes from San Jose to Region of Ontario?
While some choose either San Jose - Montreal Pierre Elliott Trudeau Intl or San Jose - Ottawa, San Jose - Toronto Pearson Intl is the most popular route from San Jose to Region of Ontario.
Can I find deals for flights from San Jose to Ontario that include hotel bookings?
Yes. In addition to deals on San Jose to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Jose to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Jose to Ontario.
Can I find deals for business class flights from San Jose to Ontario?
Yes. Cheapflights offers flight deals from San Jose to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Jose to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from San Jose to Region of Ontario (average of C$ 167). Flying from San Jose to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

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Direct flights to Canada

Top airline flying from San Jose to Ontario

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	CheapestC$ 450	AverageC$ 690	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from San Jose to Ontario?

When you search for this flight from San Jose to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Jose to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from San Jose.

Can Cheapflights find flights from San Jose to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from San Jose? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Jose to Ontario become cheaper?

Yes! Start tracking prices for San Jose to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from San Jose to Ontario from C$ 131

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Jose to Ontario

Keep the following information in mind while searching for San Jose to Ontario flight deals. Data was last updated 15 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Jose to Ontario

Cheapest flights from San Jose to OntarioExplore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Explore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Jose to Ontario that are best for you.

Best time to book a flight from San Jose to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Jose with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Jose to Ontario

What is the cheapest month to book a flight from San Jose to Region of Ontario?

What is the cheapest time of day to fly from SJC to ON?

Find hourly flight availability from San Jose to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 April 2025.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from San Jose to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Jose to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Jose to Ontario?

What are the cheapest airlines to fly from San Jose to Region of Ontario one-way?

What are the most popular routes from San Jose to Region of Ontario?

Can I find deals for flights from San Jose to Ontario that include hotel bookings?

How can I find direct flights from San Jose to Ontario?

Can I find deals for business class flights from San Jose to Ontario?

What is the cheapest month to book a flight from San Jose to Region of Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Jose to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from San Jose to Ontario

Fly with Cheapflights

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Cheapest flights from San Jose to Ontario
Explore the most affordable flight options available from San Jose to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.