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Cheap flights from Ontario to Santa Rosa (ONT - STS) from $168

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 8/24. 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.
ONT — STS
jun. 11 — jun. 181
From?
To?
mar. 6/11
mar. 6/18
1 adult, Economy
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Cheap flight deals from Ontario to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Santa Rosa (STS). 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 junio 6, 2024.

Popular in

November

Cheapest in

January

Round-trip from

$268

One-way from

$168
High demand for flights, 37% potential price rise
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Best time to find cheap flights, 42% potential price drop
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From Ontario to Santa Rosa Sonoma County
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One-way flight from Ontario to Santa Rosa Sonoma County
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What is the cheapest day to fly round-trip from Ontario to Santa Rosa?

Tuesday flights are generally found to be more expensive for flights from Ontario to Santa Rosa. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Santa Rosa.

How far in advance should I book a flight from Ontario to Santa Rosa?

Find a great deal and save up to 71% by booking at least 49 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Santa Rosa within the next two weeks, with the cheapest ticket starting at $133.

What is the cheapest month to fly from Ontario to Santa Rosa?

Our data shows that April tends to be the cheapest month to fly to Santa Rosa from Ontario. Users have commonly found prices around $141 for the month, but tickets can be as low as $38. Due to multiple factors, prepare for potentially higher prices in March.

What is the cheapest time of day to fly from ONT to STS?

It’s optimal to fly from Ontario to Santa Rosa at noon. By choosing this option you can save up to 67% on the cost of your flight, compared to a flight in the morning.

Cheap Ontario to Santa Rosa flights in June & July 2024

Find cheap flight options from Ontario to Santa Rosa specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on junio 6, 2024.
These are some of the best deals we've found on flights to Santa Rosa in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
vie. 7/127:55 pmONT - STS
2 stops46h 05mAlaska Airlines
lun. 7/152:44 pmSTS - ONT
1 stop18h 21mAlaska Airlines
Deal found 6/6$501
vie. 7/126:00 amONT - STS
1 stop15h 56mAlaska Airlines
lun. 7/152:44 pmSTS - ONT
1 stop18h 21mAlaska Airlines
Deal found 6/6$502
vie. 7/127:55 pmONT - STS
2 stops46h 05mAlaska Airlines
lun. 7/1511:21 amSTS - ONT
2 stops21h 44mAlaska Airlines
Deal found 6/6$506
sáb. 6/296:00 amONT - STS
2 stops12h 00mAlaska Airlines
sáb. 7/611:21 amSTS - ONT
1 stop8h 10mAlaska Airlines
Deal found 6/6$512
jue. 7/49:24 amONT - STS
1 stop6h 20mAmerican Airlines
jue. 7/114:11 pmSTS - ONT
1 stop5h 29mAmerican Airlines
Deal found 6/4$522
vie. 6/288:20 pmONT - STS
1 stop17h 30mAlaska Airlines
lun. 7/12:44 pmSTS - ONT
1 stop18h 21mAlaska Airlines
Deal found 6/6$527
vie. 6/288:20 pmONT - STS
2 stops22h 28mAlaska Airlines
lun. 7/12:44 pmSTS - ONT
1 stop18h 21mAlaska Airlines
Deal found 6/6$530
vie. 6/288:20 pmONT - STS
2 stops22h 28mAlaska Airlines
lun. 7/13:45 pmSTS - ONT
2 stops27h 30mAlaska Airlines
Deal found 6/6$534
mié. 6/129:24 amONT - STS
1 stop6h 19mAmerican Airlines
vie. 6/144:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/6$536

Ontario to Santa Rosa 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Santa Rosa in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
These are some of the best deals we've found on flights to Santa Rosa in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
sáb. 8/176:00 amONT - STS
1 stop7h 50mAlaska Airlines
mar. 8/202:36 pmSTS - ONT
1 stop7h 44mAlaska Airlines
Deal found 6/6$432
vie. 8/237:00 amONT - STS
1 stop10h 58mAlaska Airlines
lun. 8/2610:58 amSTS - ONT
1 stop11h 17mAlaska Airlines
Deal found 6/6$442
dom. 8/189:35 amONT - STS
1 stop6h 10mAmerican Airlines
vie. 8/234:15 pmSTS - ONT
1 stop5h 25mAmerican Airlines
Deal found 6/5$456
vie. 8/169:35 amONT - STS
1 stop6h 10mAmerican Airlines
dom. 8/184:15 pmSTS - ONT
1 stop5h 25mAmerican Airlines
Deal found 6/5$466
vie. 7/127:55 pmONT - STS
2 stops46h 05mAlaska Airlines
lun. 7/152:44 pmSTS - ONT
1 stop18h 21mAlaska Airlines
Deal found 6/6$501
vie. 7/126:00 amONT - STS
1 stop15h 56mAlaska Airlines
lun. 7/152:44 pmSTS - ONT
1 stop18h 21mAlaska Airlines
Deal found 6/6$502
vie. 7/127:55 pmONT - STS
2 stops46h 05mAlaska Airlines
lun. 7/1511:21 amSTS - ONT
2 stops21h 44mAlaska Airlines
Deal found 6/6$506
sáb. 6/296:00 amONT - STS
2 stops12h 00mAlaska Airlines
sáb. 7/611:21 amSTS - ONT
1 stop8h 10mAlaska Airlines
Deal found 6/6$512
jue. 7/49:24 amONT - STS
1 stop6h 20mAmerican Airlines
jue. 7/114:11 pmSTS - ONT
1 stop5h 29mAmerican Airlines
Deal found 6/4$522

Ontario to Santa Rosa flights leaving soon

Find last-minute flight options from Ontario to Santa Rosa 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 3,050,429 searches. Data last updated junio 6, 2024.
Consider one of these great deals we found on last-minute flights from Ontario to Santa Rosa. Users should be sure to double check the price, date, and time of their last-minute flight.
dom. 6/167:26 pmONT - STS
1 stop20h 18mAmerican Airlines
mié. 6/194:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/5$797
dom. 6/167:26 pmONT - STS
1 stop20h 18mAmerican Airlines
mar. 6/184:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/5$867
vie. 6/147:55 pmONT - STS
1 stop22h 21mAlaska Airlines
dom. 6/167:03 pmSTS - ONT
1 stop24h 12mAlaska Airlines
Deal found 6/5$1,032
dom. 6/1611:59 pmONT - STS
2 stops15h 45mAmerican Airlines
mar. 6/184:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/5$2,670
dom. 6/1611:59 pmONT - STS
2 stops15h 45mAmerican Airlines
mié. 6/194:14 pmSTS - ONT
1 stop5h 26mAmerican Airlines
Deal found 6/5$2,923

One-way flights to Santa Rosa from Ontario

Search for one-way flight options from Ontario to Santa Rosa. 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 3,050,429 searches. Data last updated junio 6, 2024.
Users traveling one-way from Ontario to Santa Rosa can select one of these great deals. Users needing a return flight from Ontario to Santa Rosa should utilize the search form above.
sáb. 8/249:35 amONT - STS
1 stop6h 10mAmerican Airlines
Deal found 6/5$168
sáb. 8/247:00 amONT - STS
2 stops15h 07mAlaska Airlines
Deal found 6/5$202
mié. 7/1710:00 amONT - STS
2 stops8h 00mAlaska Airlines
Deal found 6/4$216
mié. 7/244:24 pmONT - STS
1 stop5h 32mAlaska Airlines
Deal found 6/5$221
sáb. 8/179:35 amONT - STS
1 stop6h 10mAmerican Airlines
Deal found 6/5$228
mié. 7/174:24 pmONT - STS
1 stop5h 32mAlaska Airlines
Deal found 6/4$241
lun. 7/156:00 amONT - STS
2 stops28h 41mAlaska Airlines
Deal found 6/5$242
lun. 7/158:20 pmONT - STS
1 stop25h 36mAlaska Airlines
Deal found 6/5$247
sáb. 8/177:00 amONT - STS
2 stops14h 56mAlaska Airlines
Deal found 6/5$252

Find flights from Ontario to Santa Rosa within your budget

Customize your flight search to find flights from Ontario to Santa Rosa 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 3,050,429 searches. Data last updated junio 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$432 - $532

Route

Depart

Return

Price

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

sáb. 8/17

1 stop7h 50m

Santa Rosa Sonoma County

mar. 8/20

1 stop7h 44m

$432

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

vie. 8/23

1 stop10h 58m

Santa Rosa Sonoma County

lun. 8/26

1 stop11h 17m

$442

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

dom. 8/18

1 stop6h 10m

Santa Rosa Sonoma County

vie. 8/23

1 stop5h 25m

$456

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

vie. 8/16

1 stop6h 10m

Santa Rosa Sonoma County

dom. 8/18

1 stop5h 25m

$466

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

sáb. 6/29

2 stops12h 00m

Santa Rosa Sonoma County

sáb. 7/6

1 stop8h 10m

$512

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

jue. 7/4

1 stop6h 20m

Santa Rosa Sonoma County

jue. 7/11

1 stop5h 29m

$522

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

vie. 6/28

1 stop17h 30m

Santa Rosa Sonoma County

lun. 7/1

1 stop18h 21m

$527

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

vie. 6/28

2 stops22h 28m

Santa Rosa Sonoma County

lun. 7/1

1 stop18h 21m

$530

OntarioSanta Rosa Sonoma County

ONT - STS

ONTSTS

Ontario

vie. 10/4

1 stop6h 07m

Santa Rosa Sonoma County

dom. 10/6

1 stop5h 37m

$532

Flights are sorted by cheapest first

Deals found on 6/6

What is the cheapest day to fly from Ontario to Santa Rosa?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Santa Rosa. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Santa Rosa flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Ontario 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.

Temperature and rainfall in Santa Rosa by month

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

SFO

Temperature

51.8 - 62.6 °F

If weather is an important factor for your trip to Santa Rosa, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. 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 Santa Rosa. Reviews last updated junio 6, 2024.
To help decide which airline to fly from Ontario to Santa Rosa, see what other customers have to say about American Airlines and Alaska Airlines. 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.
Alaska Airlines
8.1
Very good
9,222 reviews

Comfort

7.9

Overall

8.1

Entertainment

7.3

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,222 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Comfort

7.9

Overall

8.1

Entertainment

7.3

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,227 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Comfort

7.9

Overall

8.1

Entertainment

7.3

Food

7.3

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

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

  • Can I find flights from Ontario to Santa Rosa for under $500 on Cheapflights?

    Yes, there are multiple flights from Ontario to Santa Rosa for under $500. The cheapest flight booked recently is on Alaska Airlines for just $432, but on average you can expect to pay $543.

  • Are there last-minute flights available from Ontario to Santa Rosa for under $800?

    There are currently 5+ open flights from Ontario to Santa Rosa within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Ontario to Santa Rosa round-trip?

    Cheapflights users have booked flights from Ontario to Santa Rosa round-trip from $432. Another airline that can offer you cheap pricing is American Airlines.

  • What does ONT to STS mean?

    Great question - ONT to STS just means Ontario Airport to Santa Rosa Sonoma County Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Ontario to Santa Rosa that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Santa Rosa flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Santa Rosa with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Santa Rosa flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Santa Rosa that include hotel bookings?

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

  • How can I find direct flights from Ontario to Santa Rosa?

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

  • Can I find deals for business class flights from Ontario to Santa Rosa?

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

  • Can I find deals for flights from Ontario to Santa Rosa that allow pets onboard?

    Many airlines flying from Ontario to Santa Rosa offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Santa Rosa?

    Yes, you can often find last-minute deals on Ontario to Santa Rosa flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Santa Rosa flight deals updated?

    The Ontario to Santa Rosa flight deals you see on this page were last updated on 6/6.

  • What is the cheapest month to book a flight from Ontario to Santa Rosa?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Santa Rosa (average of $213). Flying from Ontario to Santa Rosa in June is currently the most expensive (average of $432). 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

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Alternative routes for Ontario to Santa Rosa
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Top 2 airlines flying from Ontario to Santa Rosa

Discover the top 2 airlines that operate flights from Ontario to Santa Rosa. 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 3,050,429 searches. Data last updated junio 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$78Average$88FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$541FlexibilityNo cancel feeOn-time71%
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Ontario to Saint Thomas Island flights

Search flights from Ontario to Santa Rosa by cabin class

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