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Route

Ontario → Santa Rosa

ONTOntarioOntario International Airport
STSSanta RosaCharles M. Schulz Sonoma County Airport
Distance
423 mi
Estimated flight time
~1h 20m

Same local time in Ontario and Santa Rosa.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Daily at most

On average around 1 flights a day, observed from October 2025 to September 2026.

1
flights per day
1
busiest month · Oct
1 hr 9 min
measured flight time
8 / 12
months seen

Through the year

Per day, month by month

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

Airlines

Who flies it

SkyWest Airlinesspring
Horizon Airnow and then

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. 0.6Mon
  2. 0.4Tue
  3. 0.5Wed
  4. 0.5Thu
  5. 0.6Fri
  6. 0.5Sat
  7. 0.6Sun

Fleet

Aircraft observed

  1. Embraer 175E75L88%
  2. SR222%
  3. Daher TBM 900TBM92%
  4. Gulfstream IVGLF41%
All the numbers in a table
MonthPer daySeenAirlines
January 2026Not seen in this month.
February 2026Not seen in this month.
March 2026114
  • SkyWest Airlines10×
April 2026125
  • SkyWest Airlines24×
May 2026131
  • Horizon Air19×
  • SkyWest Airlines10×
June 2026127
  • SkyWest Airlines15×
  • Horizon Air8×
July 2026135
  • SkyWest Airlines30×
August 2026129
  • SkyWest Airlines24×
  • Horizon Air1×
September 2026127
  • SkyWest Airlines27×
October 202512–
    November 2025Not seen in this month.
    December 2025Not seen in this month.

    Airlines observed on this route

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

    Horizon Air

    QX · QXE

    Hub: SEA Seattle

    56 departure airportsView airline →

    SkyWest Airlines

    OO · SKW

    Hub: ORD Chicago

    249 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 Santa Rosa: 18.

    The airports on this route

    Ontario International Airport

    Ontario, United StatesONT / KONT

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

    84 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

    Airport pageAll direct destinations

    Charles M. Schulz Sonoma County Airport

    Santa Rosa, United StatesSTS / KSTS

    Regional airport · 18 direct destinations · 2 runways · longest runway 6,001 ft

    72 °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.

    SNA STSJohn Wayne Orange County International AirportSanta Ana is about 30 mi from Ontario.View route →HHR STSJack Northrop Field Hawthorne Municipal AirportHawthorne is about 43 mi from Ontario.View route →BUR STSHollywood Burbank/Bob Hope AirportBurbank is about 45 mi from Ontario.View route →LAX STSLos Angeles International AirportLos Angeles is about 47 mi from Ontario.View route →

    About the route from Ontario to Santa Rosa

    The observed direct connection between Ontario International Airport (ONT) and Charles M. Schulz Sonoma County Airport (STS) covers approximately 423 mi. The estimated flight time is around 1h 20m. Horizon Air and SkyWest Airlines have been observed on this connection in the available route data.

    Frequently asked questions about this route

    How far is Ontario from Santa Rosa by air?
    The great-circle distance between Ontario International Airport and Charles M. Schulz Sonoma County Airport is approximately 423 mi.
    How long is the flight from Ontario to Santa Rosa?
    Based on the distance, the estimated flight time is about 1h 20m. This is an estimate, not a schedule.
    Is there a direct connection from Ontario to Santa Rosa?
    Yes, a direct connection between ONT and STS has been observed in our route data.
    Which airlines have been observed on this route?
    In the available route data: Horizon Air and SkyWest Airlines.
    How often is there a flight from Ontario to Santa Rosa?
    On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 190 observed flights. Mainly SkyWest Airlines, Horizon Air. That is an observation, not a timetable.
    What is the current time difference between Ontario and Santa Rosa?
    Same local time in Ontario and Santa Rosa.

    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.