HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$59+ Cheap flights from Santa Rosa to Ontario (STS - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
STS — ONT
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Santa Rosa to Ontario with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Santa Rosa to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) 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 December 19, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$59
(Mytrip)
Provider with most accurate pricing for Santa Rosa Sonoma County-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Ontario flights.
Search Deals
From Santa Rosa Sonoma County to Ontario
Search Deals

Find flight deals from Santa Rosa to Ontario

Cheapest flights from Santa Rosa to Ontario
Explore the most affordable flight options available from Santa Rosa to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This American Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/274:26 pmSTS - ONT
1 stop5h 36mAmerican Airlines
Sun 12/295:38 amONT - STS
1 stop6h 45mAmerican Airlines
Deal found 12/19$456
This Alaska Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:59 pmSTS - ONT
1 stop17h 34mAlaska Airlines
Thu 1/28:52 pmONT - STS
2 stops21h 15mAlaska Airlines
Deal found 12/17$817

Find flights from Santa Rosa to Ontario within your budget

Customize your flight search to find flights from Santa Rosa 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 2,558,603 searches. Data last updated December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Santa RosaOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Sun 3/16

7:00 am-8:26 am

Nonstop1h 26m

Ontario

Sun 3/23

9:11 am-10:44 am

Nonstop1h 33m

$144

Santa RosaOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Mon 1/13

12:58 pm-6:24 pm

1 stop5h 26m

Ontario

Thu 1/16

6:10 am-12:28 pm

1 stop6h 18m

$256

Santa RosaOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Sat 3/8

6:34 pm-11:58 pm

1 stop5h 24m

Ontario

Tue 3/11

6:00 am-10:06 am

1 stop28h 06m

$292

Santa RosaOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Tue 1/28

11:12 am-5:04 pm

1 stop5h 52m

$151

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Compare providers for flights from Santa Rosa to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Santa Rosa to Ontario in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Santa Rosa-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Santa Rosa-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Santa Rosa-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santa Rosa-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Santa Rosa-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Santa Rosa to Ontario

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

Travel insights for flights from Santa Rosa to Ontario

Get recent, data-driven insights about flights from Santa Rosa to Ontario including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Santa Rosa to Ontario (average of $236). Flying from Santa Rosa to Ontario in December is currently the most expensive (average of $298). 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.

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

Find hourly flight availability from Santa Rosa 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 December 19, 2024.

One of the essential ways to save on airfare from Santa Rosa to Ontario is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 73% on airfare.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 December 19, 2024.
Peruse reviews from past customers who have flown with American Airlines and Alaska Airlines from Santa Rosa to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,552 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.1

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,552 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.1

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Avelo Airlines
7.5
Good
74 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.1

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.1

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Related info for your journey

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

  • How popular is this Santa Rosa to Ontario flight route?

    Within the past month, 1 users have taken a look at flights from Santa Rosa Sonoma County to Ontario.

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

    Avelo Airlines, at $59, was found to be the cheapest airline from Santa Rosa to Ontario.Alternate airlines to your destination round-trip include American Airlines and Alaska Airlines.

  • What are the cheapest flights from Santa Rosa to Ontario?

    Looking at all options, your cheapest flight can be booked for $27. While the most popular route (Santa Rosa Sonoma County - Ontario) can be booked for $114 on average our data indicates $54 when flying from Santa Rosa to Ontario.

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

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Santa Rosa to Ontario (average of $236). Flying from Santa Rosa to Ontario in December is currently the most expensive (average of $298). 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

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 Santa Rosa to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Las Vegas flights
Los Angeles to Las Vegas flights
San Francisco to Los Angeles flights
Santa Ana to Las Vegas flights
Los Angeles to San Francisco flights
Burbank to Las Vegas flights
San Jose to Las Vegas flights
Oakland to Las Vegas flights
San Jose to Los Angeles flights
Los Angeles to San Jose flights
Oakland to Los Angeles flights
Oakland to Santa Ana flights
Ontario to San Francisco flights
Ontario to Las Vegas flights
Santa Ana to San Francisco flights
San Francisco to Ontario flights
Oakland to Burbank flights
Los Angeles to Oakland flights
San Francisco to San Diego flights
Santa Ana to Oakland flights
Burbank to Oakland flights
Las Vegas to Los Angeles flights
San Francisco to Santa Ana flights
Sacramento to Las Vegas flights
Sacramento to Los Angeles flights
San Francisco to Burbank flights
Oakland to San Diego flights
Los Angeles to Sacramento flights
San Jose to San Diego flights
Burbank to San Francisco flights
San Diego to Las Vegas flights
San Francisco to Palm Springs flights
San Diego to San Francisco flights
Santa Ana to San Jose flights
Ontario to San Jose flights
San Jose to Santa Ana flights
Los Angeles to Reno flights
Sacramento to San Diego flights
Las Vegas to Santa Ana flights
San Jose to Ontario flights
Stockton to Las Vegas flights
Las Vegas to Burbank flights
Santa Ana to Sacramento flights
Burbank to Sacramento flights
Fresno to Las Vegas flights
Las Vegas to San Francisco flights
San Diego to San Jose flights
Burbank to Reno flights
Sacramento to Santa Ana flights
Santa Rosa to Las Vegas flights

Top 3 airlines flying from Santa Rosa to Ontario

Discover the top 3 airlines that operate flights from Santa Rosa 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 2,558,603 searches. Data last updated December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$57Average$81FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$181Average$256FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$256Average$521FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.