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Route

Ontario → San Jose

ONTOntarioOntario International Airport
SJCSan JoseMineta San Jose International Airport
Distance
333 mi
Estimated flight time
~1h 10m

Same local time in Ontario and San Jose.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Several times a day

On average around 4 flights a day, observed from October 2025 to September 2026.

4
flights per day
4
busiest month · Nov
3
quietest month · Oct
52 min
measured flight time
12 / 12
months seen

Through the year

Per day, month by month

  1. 3Jan2026
  2. 4Feb
  3. 4Mar
  4. 4Apr
  5. 4May
  6. 4Jun
  7. 4Jul
  8. 4Aug
  9. 3Sep
  10. 3Oct2025
  11. 4Nov
  12. 4Dec

Airlines

Who flies it

Southwest Airlinesall year
UPS Airlinessummer

Through the day

Departure times

Local time in Ontario. Most departures between 16:00 and 19:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 4.2Mon
  2. 3.5Tue
  3. 3.3Wed
  4. 3.7Thu
  5. 4.1Fri
  6. 3.7Sat
  7. 3.2Sun

Fleet

Aircraft observed

  1. Boeing 737-700B73756%
  2. Boeing 737 MAX 8B38M23%
  3. Boeing 737-800B73814%
  4. Embraer Phenom 300E55P1%
  5. Boeing 757-200B7520%
All the numbers in a table
MonthPer daySeenAirlines
January 20263102
  • Southwest Airlines95×
  • UPS Airlines1×
February 20264103
  • Southwest Airlines96×
March 20264117
  • Southwest Airlines102×
April 20264106
  • Southwest Airlines95×
May 20264107
  • Southwest Airlines99×
June 20264112
  • Southwest Airlines104×
  • UPS Airlines1×
July 20264119
  • Southwest Airlines112×
  • UPS Airlines2×
August 20264109
  • Southwest Airlines98×
  • UPS Airlines1×
September 20263103
  • Southwest Airlines99×
October 20253115
  • Southwest Airlines106×
November 20254115
  • Southwest Airlines106×
December 20254113
  • Southwest Airlines103×
  • UPS Airlines2×

Airlines observed on this route

From observed callsign routes on ONT-SJC - not a booking guarantee.

Southwest Airlines

WN · SWA

Hub: DEN Denver

117 departure airportsView airline →

UPS Airlines

5X · UPS

Hub: SDF Louisville

154 departure airportsView airline →

About this route

  • Domestic route: both airports are in the same country.
  • The opposite direction has also been observed as a direct connection.
  • Direct destinations observed from Ontario: 63.
  • Direct destinations observed from San Jose: 59.

The airports on this route

Ontario International Airport

Ontario, United StatesONT / KONT

Major airport · 63 direct destinations · 2 runways · longest runway 12,198 ft

82 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Mineta San Jose International Airport

San Jose, United StatesSJC / KSJC

Major airport · 59 direct destinations · 2 runways · longest runway 11,001 ft

63 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Alternative airports for this journey

Same journey, a different airport nearby - with an observed direct connection.

ONT OAKOakland San Francisco Bay AirportOakland is about 29 mi from San Jose.View route →ONT SFOSan Francisco International AirportSan Francisco is about 30 mi from San Jose.View route →SNA SJCJohn Wayne Orange County International AirportSanta Ana is about 30 mi from Ontario.View route →LGB SJCLong Beach International AirportLong Beach is about 35 mi from Ontario.View route →

About the route from Ontario to San Jose

The observed direct connection between Ontario International Airport (ONT) and Mineta San Jose International Airport (SJC) covers approximately 333 mi. The estimated flight time is around 1h 10m. Southwest Airlines and UPS Airlines have been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Ontario from San Jose by air?
The great-circle distance between Ontario International Airport and Mineta San Jose International Airport is approximately 333 mi.
How long is the flight from Ontario to San Jose?
Based on the distance, the estimated flight time is about 1h 10m. This is an estimate, not a schedule.
Is there a direct connection from Ontario to San Jose?
Yes, a direct connection between ONT and SJC has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Southwest Airlines and UPS Airlines.
How often is there a flight from Ontario to San Jose?
On average around 4 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,321 observed flights. Mainly Southwest Airlines, UPS Airlines. That is an observation, not a timetable.
What is the current time difference between Ontario and San Jose?
Same local time in Ontario and San Jose.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

Route data updated on October 11, 2026.