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Flights from Ontario to Santa Rosa
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Flights from Ontario to Santa Rosa Starting at €26

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        ONT09:11
        1h 33m
        Nonstop
        STS10:44
        Sun, Jan 5|Ontario - Santa Rosa|Avelo Airlines
        €26€160
        84% OFF
        84% OFF
        €160€26

        Choose Avelo Airlines flights from Ontario to Santa Rosa. The one-way direct flight with Avelo Airlines departs from Ontario International Airport on Sun, Jan 5, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €26 including taxes and charges.

      • ONT09:11
        1h 33m
        Nonstop
        STS10:44
        Thu, Jan 16|Ontario - Santa Rosa|Avelo Airlines
        €30€160
        81% OFF
        81% OFF
        €160€30

        Choose Avelo Airlines flights from Ontario to Santa Rosa. The one-way direct flight with Avelo Airlines departs from Ontario International Airport on Thu, Jan 16, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €30 including taxes and charges.

      • ONT09:11
        1h 33m
        Nonstop
        STS10:44
        Thu, Jan 9|Ontario - Santa Rosa|Avelo Airlines
        €39€160
        75% OFF
        75% OFF
        €160€39

        Choose Avelo Airlines flights from Ontario to Santa Rosa. The one-way direct flight with Avelo Airlines departs from Ontario International Airport on Thu, Jan 9, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €39 including taxes and charges.

      • ONT09:11
        1h 33m
        Nonstop
        STS10:44
        Thu, Feb 13|Ontario - Santa Rosa|Avelo Airlines
        €40
        €40

        Choose Avelo Airlines flights from Ontario to Santa Rosa. The one-way direct flight with Avelo Airlines departs from Ontario International Airport on Thu, Feb 13, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €40 including taxes and charges.

      • ONT09:11
        1h 33m
        Nonstop
        STS10:44
        Sun, Mar 2|Ontario - Santa Rosa|Avelo Airlines
        €40
        €40

        Choose Avelo Airlines flights from Ontario to Santa Rosa. The one-way direct flight with Avelo Airlines departs from Ontario International Airport on Sun, Mar 2, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €40 including taxes and charges.

      • ONT09:11
        1h 33m
        Nonstop
        STS10:44
        Sun, Feb 23|Ontario - Santa Rosa|Avelo Airlines
        €42
        €42

        Choose Avelo Airlines flights from Ontario to Santa Rosa. The one-way direct flight with Avelo Airlines departs from Ontario International Airport on Sun, Feb 23, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €42 including taxes and charges.

      • ONT12:34
        5h 49m
        1 stop
        STS18:23
        Wed, Jan 15|Ontario - Santa Rosa|Frontier Airlines
        €81
        €81

        Choose Frontier Airlines flights from Ontario to Santa Rosa. The one-way connecting flight with Frontier Airlines departs from Ontario International Airport on Wed, Jan 15, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €81 including taxes and charges.

      • ONT06:10
        6h 18m
        1 stop
        STS12:28
        Sat, Jan 18|Ontario - Santa Rosa|American Airlines
        €116
        €116

        Choose American Airlines flights from Ontario to Santa Rosa. The one-way connecting flight with American Airlines departs from Ontario International Airport on Sat, Jan 18, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €116 including taxes and charges.

      • ONT11:33
        5h 58m
        1 stop
        STS17:31
        Thu, Jan 9|Ontario - Santa Rosa|Alaska Airlines
        €127
        €127

        Choose Alaska Airlines flights from Ontario to Santa Rosa. The one-way connecting flight with Alaska Airlines departs from Ontario International Airport on Thu, Jan 9, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €127 including taxes and charges.

      • ONT06:15
        6h 4m
        1 stop
        STS12:19
        Sat, Mar 8|Ontario - Santa Rosa|American Airlines
        €130
        €130

        Choose American Airlines flights from Ontario to Santa Rosa. The one-way connecting flight with American Airlines departs from Ontario International Airport on Sat, Mar 8, arriving at Charles M. Schulz Sonoma County Airport. One-way Prices start from €130 including taxes and charges.

      • ONT01:00 pm
        3h 5m
        Nonstop
        STS02:00 pm
        Sun, Jan 12|Ontario - Santa Rosa|Avelo Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Ontario to Santa Rosa

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Ontario to Santa Rosa

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Avelo Airlines
From €26
Frontier Airlines
From €81
American Airlines
From €116
Alaska Airlines
From €127

Find more flights and airlines

Alternative Routes from Ontario to Santa Rosa

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Ontario to Santa Rosa.

  • Cheapest
    Avelo Airlines
    ONT
    09:11
    1h 33m
    Nonstop
    STS
    10:44
    Ontario International Airport - Charles M. Schulz Sonoma County Airport
    Sun, Jan 5Avelo Airlines
    €26
  • Avelo Airlines
    ONT
    09:11
    1h 33m
    Nonstop
    STS
    10:44
    Ontario International Airport - Charles M. Schulz Sonoma County Airport
    Sun, Jan 5Avelo Airlines
    €26
    Find More Flights

FAQ

  • When are flight tickets from Ontario (ONT) to Santa Rosa (STS) the cheapest?

    Airlines adjust prices for flights from Ontario to Santa Rosa based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Ontario (ONT) to Santa Rosa (STS) cost?

    According to Trip.com's data, the lowest price is around €331.

How to find a cheap flight from Ontario to Santa Rosa

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Ontario to Santa Rosa. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Ontario to Santa Rosa

Cheapest nonstop flight price€26
Cheapest round-trip ticket price€58
Off-season for travelOctober
Peak season for travelApril
Flight distance12,797.14 km
Popular airlineAlaska Airlines

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