Cheap flights from San Jose to Ontario (SJC - ONT) from $57

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 3/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SJC — ONT
Feb 20 — Feb 271

The best prices from San Jose to Ontario are usually found in January or December, booked 51 days in advance, depart on a Wednesday or Monday and return on a Saturday

How to find the cheapest flight from San Jose (SJC) to Ontario (ONT)

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated Februar 16, 2024.

Popular in

March

Cheapest in

January

Round-trip from

$238

One-way from

$57
High demand for flights, 44% potential price rise
Best time to find cheap flights, 34% potential price drop
From San Jose to Ontario
One-way flight from San Jose to Ontario

What is the cheapest day to fly round-trip from San Jose to Ontario?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 90%.

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

Travelers have found it’s best to book a flight 47 days in advance to save up to 102% 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 47 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 Ontario 1-2 weeks in advance for as low as $167, or $244 for flights within the next 24 hours.

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

January can be a great time to fly to Ontario from San Jose with a flight ticket averaging about $172. Cheapflights users have found deals in the month of January for as cheap as $53. The most expensive prices can be found in the month of November.

When is the cheapest time to fly from San Jose to Ontario (SJC - ONT)?

It’s optimal to fly from San Jose to Ontario at noon. By choosing this option you can save up to 60% on the cost of your flight, compared to a flight in the evening.

Cheap American Airlines flights from San Jose to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between San Jose and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,271,781 searches. Data last updated Februar 16, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from San Jose to Ontario. Come back soon if you're not finding the exact deal you're looking for.
Mi 4/36:10 amSJC - ONT
1 stop5h 44mAmerican Airlines
Mi 5/16:25 amONT - SJC
1 stop5h 45mAmerican Airlines
Deal found 2/13$260
Di 5/146:10 amSJC - ONT
1 stop5h 37mAmerican Airlines
Fr 5/177:40 pmONT - SJC
1 stop13h 34mAmerican Airlines
Deal found 2/15$300
Mi 3/137:55 amSJC - ONT
2 stops14h 04mAmerican Airlines
Mi 3/2012:55 pmONT - SJC
1 stop5h 39mAmerican Airlines
Deal found 2/13$322
Sa 3/2312:47 pmSJC - ONT
1 stop5h 59mAmerican Airlines
Do 3/2812:55 pmONT - SJC
1 stop5h 39mAmerican Airlines
Deal found 2/14$372
So 3/247:14 pmSJC - ONT
1 stop16h 40mAmerican Airlines
Mi 3/2712:55 pmONT - SJC
1 stop5h 39mAmerican Airlines
Deal found 2/14$374
So 4/146:10 amSJC - ONT
1 stop5h 40mAmerican Airlines
Mi 4/176:25 amONT - SJC
1 stop5h 45mAmerican Airlines
Deal found 2/14$376
Mi 3/137:55 amSJC - ONT
2 stops14h 04mAmerican Airlines
Mi 3/206:29 amONT - SJC
2 stops16h 13mAmerican Airlines
Deal found 2/13$396
Mo 2/266:10 amSJC - ONT
1 stop5h 42mAmerican Airlines
Do 2/2912:55 pmONT - SJC
1 stop5h 28mAmerican Airlines
Deal found 2/13$397
Mo 2/266:10 amSJC - ONT
1 stop5h 42mAmerican Airlines
Mo 3/412:55 pmONT - SJC
1 stop5h 28mAmerican Airlines
Deal found 2/15$436

Cheap Alaska Airlines flights from San Jose to Ontario

Explore cheap flight options specifically provided by Alaska Airlines for the route between San Jose and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,271,781 searches. Data last updated Februar 16, 2024.
To aid your search, here are some of the cheapest Alaska Airlines flights we've found from San Jose to Ontario. Deals are refreshing constantly so come back soon for more options.
Di 3/54:50 pmSJC - ONT
1 stop6h 09mAlaska Airlines
Mi 3/66:00 amONT - SJC
1 stop5h 44mAlaska Airlines
Deal found 2/13$348
Mo 3/117:40 pmSJC - ONT
1 stop13h 09mAlaska Airlines
Mo 3/187:59 pmONT - SJC
1 stop13h 11mAlaska Airlines
Deal found 2/14$360
Mi 3/612:39 pmSJC - ONT
1 stop10h 20mAlaska Airlines
Sa 3/96:00 amONT - SJC
1 stop16h 04mAlaska Airlines
Deal found 2/14$363
Do 3/710:14 amSJC - ONT
1 stop12h 45mAlaska Airlines
Sa 3/96:00 amONT - SJC
1 stop16h 04mAlaska Airlines
Deal found 2/14$365
Mi 3/612:39 pmSJC - ONT
2 stops9h 30mAlaska Airlines
Mo 3/116:00 amONT - SJC
1 stop5h 44mAlaska Airlines
Deal found 2/14$368
Sa 3/164:15 pmSJC - ONT
1 stop6h 28mAlaska Airlines
Mi 3/206:00 amONT - SJC
1 stop5h 41mAlaska Airlines
Deal found 2/14$373
Fr 3/86:15 amSJC - ONT
1 stop17h 18mAlaska Airlines
Fr 3/157:59 pmONT - SJC
1 stop12h 11mAlaska Airlines
Deal found 2/15$375
Do 3/712:39 pmSJC - ONT
1 stop10h 20mAlaska Airlines
So 3/106:00 amONT - SJC
1 stop5h 44mAlaska Airlines
Deal found 2/14$382
Fr 3/87:40 pmSJC - ONT
1 stop13h 09mAlaska Airlines
So 3/106:00 amONT - SJC
1 stop5h 44mAlaska Airlines
Deal found 2/15$385

Cheap San Jose to Ontario flights in February & March 2024

Find cheap flight options from San Jose to Ontario specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,271,781 searches. Prices were last updated on Februar 16, 2024.
Listed are some of the best fares we've found on flights departing from San Jose to Ontario in 2024. For more flight deals, be sure to check back very soon.
Di 3/196:30 amSJC - ONT
1 stop5h 28mMultiple Airlines
Di 3/195:26 pmONT - SJC
1 stop15h 19mMultiple Airlines
Deal found 2/14$110
Mi 3/138:00 amSJC - ONT
1 stop4h 09mMultiple Airlines
Mi 3/205:37 pmONT - SJC
1 stop5h 26mMultiple Airlines
Deal found 2/13$154
Mo 3/49:30 pmSJC - ONT
1 stop10h 07mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$196
Fr 3/83:08 pmSJC - ONT
2 stops6h 47mMultiple Airlines
Sa 3/95:03 pmONT - SJC
1 stop6h 00mMultiple Airlines
Deal found 2/14$231
Sa 3/23:28 pmSJC - ONT
2 stops7h 16mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$238
So 3/39:29 pmSJC - ONT
1 stop10h 23mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$239
Fr 3/89:30 pmSJC - ONT
1 stop10h 19mMultiple Airlines
Sa 3/95:03 pmONT - SJC
1 stop6h 00mMultiple Airlines
Deal found 2/14$246
Sa 3/211:56 amSJC - ONT
1 stop5h 04mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$249
Mo 3/42:18 pmSJC - ONT
2 stops8h 03mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$254

San Jose to Ontario 2024 flight deals

Discover exclusive flight deals for travel between San Jose and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,271,781 searches. Data last updated Februar 16, 2024.
Listed are some of the best fares we've found on flights departing from San Jose to Ontario in 2024. For more flight deals, be sure to check back very soon.
Di 3/196:30 amSJC - ONT
1 stop5h 28mMultiple Airlines
Di 3/195:26 pmONT - SJC
1 stop15h 19mMultiple Airlines
Deal found 2/14$110
Mi 3/138:00 amSJC - ONT
1 stop4h 09mMultiple Airlines
Mi 3/205:37 pmONT - SJC
1 stop5h 26mMultiple Airlines
Deal found 2/13$154
Mo 3/49:30 pmSJC - ONT
1 stop10h 07mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$196
Fr 3/83:08 pmSJC - ONT
2 stops6h 47mMultiple Airlines
Sa 3/95:03 pmONT - SJC
1 stop6h 00mMultiple Airlines
Deal found 2/14$231
Sa 3/23:28 pmSJC - ONT
2 stops7h 16mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$238
So 3/39:29 pmSJC - ONT
1 stop10h 23mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$239
Fr 4/197:05 amSJC - ONT
1 stop4h 40mMultiple Airlines
So 4/2112:39 pmONT - SJC
1 stop10h 34mMultiple Airlines
Deal found 2/13$243
Fr 3/89:30 pmSJC - ONT
1 stop10h 19mMultiple Airlines
Sa 3/95:03 pmONT - SJC
1 stop6h 00mMultiple Airlines
Deal found 2/14$246
Sa 3/211:56 amSJC - ONT
1 stop5h 04mMultiple Airlines
Di 3/51:57 pmONT - SJC
1 stop5h 37mMultiple Airlines
Deal found 2/14$249

San Jose to Ontario flights leaving soon

Find last-minute flight options from San Jose to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,271,781 searches. Data last updated Februar 16, 2024.
Consider one of these great deals we found on last-minute flights from San Jose to Ontario. Users should examine the flight details to ensure there are no surprises.
So 2/257:31 amSJC - ONT
1 stop9h 29mMultiple Airlines
Sa 3/21:57 pmONT - SJC
1 stop9h 07mMultiple Airlines
Deal found 2/14$314
So 2/252:18 pmSJC - ONT
2 stops6h 23mMultiple Airlines
Sa 3/21:57 pmONT - SJC
1 stop9h 07mMultiple Airlines
Deal found 2/14$350
Sa 2/246:10 amSJC - ONT
1 stop5h 42mAmerican Airlines
Do 2/296:36 amONT - SJC
1 stop5h 39mAmerican Airlines
Deal found 2/14$372
So 2/257:31 amSJC - ONT
2 stops10h 59mMultiple Airlines
Do 2/298:30 amONT - SJC
2 stops14h 44mMultiple Airlines
Deal found 2/14$409
Fr 2/2312:40 pmSJC - ONT
1 stop10h 17mMultiple Airlines
Do 2/298:30 amONT - SJC
2 stops14h 44mMultiple Airlines
Deal found 2/14$422
Sa 2/246:10 amSJC - ONT
1 stop5h 42mAmerican Airlines
Mo 2/2612:55 pmONT - SJC
1 stop5h 28mAmerican Airlines
Deal found 2/14$436
Sa 2/2412:40 pmSJC - ONT
1 stop10h 17mMultiple Airlines
Do 2/298:30 amONT - SJC
2 stops14h 44mMultiple Airlines
Deal found 2/14$438
Sa 2/246:10 amSJC - ONT
1 stop5h 42mAmerican Airlines
Di 2/276:36 amONT - SJC
1 stop5h 39mAmerican Airlines
Deal found 2/14$458
Sa 2/246:10 amSJC - ONT
1 stop5h 42mAmerican Airlines
Mi 2/2812:55 pmONT - SJC
1 stop5h 28mAmerican Airlines
Deal found 2/14$501

One-way flights to Ontario from San Jose

Search for one-way flight options from San Jose to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,271,781 searches. Data last updated Februar 16, 2024.
Users traveling one-way from San Jose to Ontario can select one of these great deals. Users can also find round-trip San Jose to Ontario flights by using the search form above.
Di 3/198:57 amSJC - ONT
1 stop23h 13mMultiple Airlines
Deal found 2/14$57
Di 3/198:57 amSJC - ONT
1 stop23h 13mMultiple Airlines
Deal found 2/14$58
Mi 3/138:00 amSJC - ONT
1 stop4h 09mMultiple Airlines
Deal found 2/14$80
Mo 4/89:30 pmSJC - ONT
1 stop14h 28mMultiple Airlines
Deal found 2/14$85
So 3/109:29 pmSJC - ONT
1 stop12h 39mMultiple Airlines
Deal found 2/15$102
Mo 3/49:30 pmSJC - ONT
1 stop10h 07mMultiple Airlines
Deal found 2/15$107
Mo 3/49:30 pmSJC - ONT
2 stops14h 33mMultiple Airlines
Deal found 2/15$108
Do 2/297:31 amSJC - ONT
2 stops14h 15mMultiple Airlines
Deal found 2/14$109
Do 2/297:31 amSJC - ONT
1 stop14h 35mMultiple Airlines
Deal found 2/14$115

Find flights from San Jose to Ontario within your budget

Customize your flight search to find flights from San Jose to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,271,781 searches. Data last updated Februar 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$110 - $555

Route

Depart

Return

Price

San JoseOntario

SJC - ONT

SJCONT

San Jose

Di 3/19

1 stop5h 28m

Ontario

Di 3/19

1 stop15h 19m

$110

San JoseOntario

SJC - ONT

SJCONT

San Jose

Mi 3/13

1 stop4h 09m

Ontario

Mi 3/20

1 stop5h 26m

$154

San JoseOntario

SJC - ONT

SJCONT

San Jose

Mo 3/4

1 stop10h 07m

Ontario

Di 3/5

1 stop5h 37m

$196

San JoseOntario

SJC - ONT

SJCONT

San Jose

Fr 3/8

2 stops6h 47m

Ontario

Sa 3/9

1 stop6h 00m

$231

San JoseOntario

SJC - ONT

SJCONT

San Jose

Mi 4/3

1 stop5h 44m

Ontario

Mi 5/1

1 stop5h 45m

$260

San JoseOntario

SJC - ONT

SJCONT

San Jose

Di 3/5

1 stop6h 09m

Ontario

Mi 3/6

1 stop5h 44m

$348

San JoseOntario

SJC - ONT

SJCONT

San Jose

Mi 3/6

1 stop8h 53m

Ontario

So 3/10

1 stop15h 57m

$370

San JoseOntario

SJC - ONT

SJCONT

San Jose

Di 2/27

2 stops9h 30m

Ontario

Do 2/29

2 stops9h 14m

$538

San JoseOntario

SJC - ONT

SJCONT

San Jose

Di 2/27

1 stop10h 17m

Ontario

Mi 2/28

1 stop10h 13m

$555

Flights are sorted by cheapest first

Deals found on 2/14

When is the best time to book a flight from San Jose to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from San Jose to Ontario. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from San Jose to Ontario, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from San Jose to Ontario?

Use this chart to determine the cheapest time to fly round-trip from San Jose to Ontario. Price data was last updated on February 11, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their San Jose to Ontario flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Ontario by month

Plan your trip from San Jose to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from San Jose to Ontario is currently $91 while a round-trip flight costs $307. Price data was last updated on February 11, 2024.

Currently, October is the cheapest month in which you can book a flight from San Jose to Ontario (average of $237). Flying from San Jose to Ontario in June is currently the most expensive (average of $357). 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.

January

$271

February

$269

March

$291

April

$313

May

$292

June

$357

July

$328

August

$287

September

$258

October

$237

November

$268

December

$272

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated Februar 16, 2024.
Read through reviews of airlines operating flights from San Jose to Ontario, such as American Airlines, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
1,413 reviews

Entertainment

7.2

Overall

8.1

Comfort

8.0

Food

7.2

Boarding

8.3

Crew

8.6

Reviews

1 / 10

No food, no entertainment Otherwise nice flight Delay of almost an hour on way back though

8.1
Very good
1,413 reviews
8.1
Very good
1,413 reviews

Entertainment

7.2

Overall

8.1

Comfort

8.0

Food

7.2

Boarding

8.3

Crew

8.6

Reviews

1 / 10

No food, no entertainment Otherwise nice flight Delay of almost an hour on way back though

7.9
Good
3,044 reviews
8.1
Very good
1,413 reviews

Entertainment

7.2

Overall

8.1

Comfort

8.0

Food

7.2

Boarding

8.3

Crew

8.6

Reviews

1 / 10

No food, no entertainment Otherwise nice flight Delay of almost an hour on way back though

7.7
Good
794 reviews
8.1
Very good
1,413 reviews

Entertainment

7.2

Overall

8.1

Comfort

8.0

Food

7.2

Boarding

8.3

Crew

8.6

Reviews

1 / 10

No food, no entertainment Otherwise nice flight Delay of almost an hour on way back though

7.5
Good
1,919 reviews
8.1
Very good
1,413 reviews

Entertainment

7.2

Overall

8.1

Comfort

8.0

Food

7.2

Boarding

8.3

Crew

8.6

Reviews

1 / 10

No food, no entertainment Otherwise nice flight Delay of almost an hour on way back though

7.2
Good
2,655 reviews
8.1
Very good
1,413 reviews

Entertainment

7.2

Overall

8.1

Comfort

8.0

Food

7.2

Boarding

8.3

Crew

8.6

Reviews

1 / 10

No food, no entertainment Otherwise nice flight Delay of almost an hour on way back though

Temperature and rainfall in Ontario by month

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

LAX

Temperature

57.2 - 73.4 °F

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 airports do I use to fly from San Jose to Ontario?

To fly from San Jose to Ontario, you need to book a flight from San Jose (SJC) to Ontario (ONT). Nonstop flights to Ontario from San Jose take 4h 09m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from San Jose to Ontario offered by 8 different airlines.

Can I find flights from San Jose to Ontario for under $200 on Cheapflights?

Yes, there are multiple flights from San Jose to Ontario for under $200. The cheapest flight booked recently is on Multiple Airlines for just $110, but on average you can expect to pay $256.

Are there last-minute flights available from San Jose to Ontario for under $400?

There are currently 20+ open flights from San Jose to Ontario within the next 7 days for less than $400.

What are the cheapest airlines flying from San Jose to Ontario round-trip?

According to our current data, American Airlines ($260), Alaska Airlines ($348), and Delta ($370) offers the cheapest pricing from San Jose to Ontario.

What are the most popular airlines that fly from San Jose to Ontario?

What does SJC to ONT mean?

San Jose Airport is SJC and Ontario Airport is ONT. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

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 8 airlines flying from San Jose to Ontario

Discover the top 8 airlines that operate flights from San Jose to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,271,781 searches. Data last updated Februar 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$95FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$46Average$94FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapest$50Average$118FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Breeze AirwaysCheapest$61Average$123FlexibilityNo cancel feeOn-timeN/A
Search Breeze Airways flights
DeltaCheapest$69Average$163FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$85Average$408FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$138Average$258FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$171Average$396FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Search flights from San Jose to Ontario by cabin class

Find flights from San Jose to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from San Jose to Ontario

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 Februar 16, 2024.
1%of flight departuresEarly morningMidnight to 6 am
37%of flight departuresMorning6 am to noon
62%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Jose to Ontario

Explore weekly flight availability from San Jose to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated Februar 16, 2024.
Sunday3daily flights
Monday5daily flights
Tuesday1daily flight
Wednesday1daily flight
Thursday5daily flights
Friday5