Cheap flights from Santa Rosa to Ontario (STS - ONT) from $207

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 5/2. 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.
STS — ONT
Mar 24 — Mar 311

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 March 19, 2024.

Round-trip from

$238

One-way from

$207
From Santa Rosa Sonoma County to Ontario
One-way flight from Santa Rosa Sonoma County to Ontario

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

Wednesday is generally a great day to depart. Flying on this day could help you save up to 88%.

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

To save up to 59% on this flight, we recommend booking at least 38 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Santa Rosa to Ontario from $129 1-2 weeks out and tickets from $203 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of January. Prices to Ontario from Santa Rosa average $150. You can even find prices in January for less than $150, as users have found deals to Ontario from as low as $49. The month of November appears to be one of the more expensive times to travel to Ontario from Santa Rosa. Flying in the targeted month can save you up to 17%.

When is the cheapest time to fly from Santa Rosa to Ontario (STS - ONT)?

One of the essential ways to save on airfare from Santa Rosa to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 54% on airfare.

Cheap Alaska Airlines flights from Santa Rosa to Ontario

Explore cheap flight options specifically provided by Alaska Airlines for the route between Santa Rosa and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Find some of the cheapest Alaska Airlines flights traveling from Santa Rosa to Ontario. Deals update often to give you more flight options matching your criteria
Tue 4/162:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Wed 4/176:00 amONT - STS
1 stop7h 23mAlaska Airlines
Deal found 3/18$397
Tue 4/1611:20 amSTS - ONT
1 stop10h 33mAlaska Airlines
Tue 4/236:00 amONT - STS
1 stop7h 23mAlaska Airlines
Deal found 3/17$427
Sat 4/202:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Sun 4/217:00 amONT - STS
1 stop8h 55mAlaska Airlines
Deal found 3/18$487
Sat 4/202:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Sun 4/217:00 amONT - STS
2 stops30h 23mAlaska Airlines
Deal found 3/18$508
Sat 4/2011:20 amSTS - ONT
2 stops10h 08mAlaska Airlines
Sun 4/217:00 amONT - STS
2 stops30h 23mAlaska Airlines
Deal found 3/18$521
Sun 4/711:07 amSTS - ONT
1 stop24h 11mAlaska Airlines
Fri 4/126:25 pmONT - STS
1 stop21h 55mAlaska Airlines
Deal found 3/17$547
Sun 4/711:07 amSTS - ONT
2 stops36h 52mAlaska Airlines
Fri 4/126:25 pmONT - STS
1 stop21h 55mAlaska Airlines
Deal found 3/17$595
Sun 4/711:07 amSTS - ONT
2 stops36h 52mAlaska Airlines
Fri 4/127:59 pmONT - STS
2 stops20h 21mAlaska Airlines
Deal found 3/17$683
Wed 4/32:55 pmSTS - ONT
1 stop18h 30mAlaska Airlines
Sat 4/66:30 amONT - STS
1 stop27h 57mAlaska Airlines
Deal found 3/18$927

Cheap American Airlines flights from Santa Rosa to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between Santa Rosa and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Some of the best deals we've found on American Airlines flights traveling from Santa Rosa to Ontario. Deals frequently update to provide users with more options.
Thu 8/84:12 pmSTS - ONT
1 stop5h 32mAmerican Airlines
Tue 8/139:50 amONT - STS
1 stop5h 52mAmerican Airlines
Deal found 3/18$486
Thu 5/24:24 pmSTS - ONT
1 stop5h 32mAmerican Airlines
Sun 5/510:00 amONT - STS
1 stop5h 54mAmerican Airlines
Deal found 3/18$561
Thu 4/114:24 pmSTS - ONT
1 stop5h 32mAmerican Airlines
Sun 4/1410:00 amONT - STS
1 stop5h 54mAmerican Airlines
Deal found 3/18$616
Fri 3/294:21 pmSTS - ONT
1 stop5h 38mAmerican Airlines
Sun 3/3110:19 amONT - STS
1 stop5h 32mAmerican Airlines
Deal found 3/18$701
Tue 5/284:20 pmSTS - ONT
1 stop6h 09mAmerican Airlines
Fri 5/319:30 amONT - STS
1 stop6h 20mAmerican Airlines
Deal found 3/19$746
Fri 3/294:21 pmSTS - ONT
1 stop5h 38mAmerican Airlines
Mon 4/110:19 amONT - STS
1 stop5h 32mAmerican Airlines
Deal found 3/18$776
Thu 4/412:53 pmSTS - ONT
1 stop5h 56mAmerican Airlines
Mon 4/810:00 amONT - STS
1 stop5h 54mAmerican Airlines
Deal found 3/18$822
Tue 4/1612:53 pmSTS - ONT
1 stop5h 52mAmerican Airlines
Tue 4/236:00 amONT - STS
2 stops9h 54mAmerican Airlines
Deal found 3/17$975
Fri 3/294:21 pmSTS - ONT
2 stops17h 40mAmerican Airlines
Sun 3/3110:19 amONT - STS
1 stop5h 32mAmerican Airlines
Deal found 3/18$990

Cheap Santa Rosa to Ontario flights in March & April 2024

Find cheap flight options from Santa Rosa to Ontario specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 4/162:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Wed 4/176:00 amONT - STS
1 stop7h 23mAlaska Airlines
Deal found 3/18$397
Tue 4/1611:20 amSTS - ONT
1 stop10h 33mAlaska Airlines
Tue 4/236:00 amONT - STS
1 stop7h 23mAlaska Airlines
Deal found 3/17$427
Sat 4/202:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Sun 4/217:00 amONT - STS
1 stop8h 55mAlaska Airlines
Deal found 3/18$487
Sat 4/202:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Sun 4/217:00 amONT - STS
2 stops30h 23mAlaska Airlines
Deal found 3/18$508
Sat 4/2011:20 amSTS - ONT
2 stops10h 08mAlaska Airlines
Sun 4/217:00 amONT - STS
2 stops30h 23mAlaska Airlines
Deal found 3/18$521
Wed 3/204:21 pmSTS - ONT
1 stop5h 24mAmerican Airlines
Thu 3/2110:19 amONT - STS
1 stop5h 32mAmerican Airlines
Deal found 3/18$538
Sun 4/711:07 amSTS - ONT
1 stop24h 11mAlaska Airlines
Fri 4/126:25 pmONT - STS
1 stop21h 55mAlaska Airlines
Deal found 3/17$547
Sun 4/711:07 amSTS - ONT
2 stops36h 52mAlaska Airlines
Fri 4/126:25 pmONT - STS
1 stop21h 55mAlaska Airlines
Deal found 3/17$595
Thu 4/114:24 pmSTS - ONT
1 stop5h 32mAmerican Airlines
Sun 4/1410:00 amONT - STS
1 stop5h 54mAmerican Airlines
Deal found 3/18$616

Santa Rosa to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Santa Rosa and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 4/162:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Wed 4/176:00 amONT - STS
1 stop7h 23mAlaska Airlines
Deal found 3/18$397
Tue 4/1611:20 amSTS - ONT
1 stop10h 33mAlaska Airlines
Tue 4/236:00 amONT - STS
1 stop7h 23mAlaska Airlines
Deal found 3/17$427
Thu 8/84:12 pmSTS - ONT
1 stop5h 32mAmerican Airlines
Tue 8/139:50 amONT - STS
1 stop5h 52mAmerican Airlines
Deal found 3/18$486
Sat 4/202:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Sun 4/217:00 amONT - STS
1 stop8h 55mAlaska Airlines
Deal found 3/18$487
Sat 4/202:18 pmSTS - ONT
1 stop7h 10mAlaska Airlines
Sun 4/217:00 amONT - STS
2 stops30h 23mAlaska Airlines
Deal found 3/18$508
Sat 4/2011:20 amSTS - ONT
2 stops10h 08mAlaska Airlines
Sun 4/217:00 amONT - STS
2 stops30h 23mAlaska Airlines
Deal found 3/18$521
Wed 3/204:21 pmSTS - ONT
1 stop5h 24mAmerican Airlines
Thu 3/2110:19 amONT - STS
1 stop5h 32mAmerican Airlines
Deal found 3/18$538
Sun 4/711:07 amSTS - ONT
1 stop24h 11mAlaska Airlines
Fri 4/126:25 pmONT - STS
1 stop21h 55mAlaska Airlines
Deal found 3/17$547
Wed 9/184:12 pmSTS - ONT
1 stop5h 32mAmerican Airlines
Sat 9/219:50 amONT - STS
1 stop5h 52mAmerican Airlines
Deal found 3/17$561

Santa Rosa to Ontario flights leaving soon

Find last-minute flight options from Santa Rosa to Ontario 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 3,145,932 searches. Data last updated March 19, 2024.
Check out these flights departing soon from Santa Rosa to Ontario. Users should examine the flight details to ensure there are no surprises.
Mon 3/254:21 pmSTS - ONT
1 stop5h 24mAmerican Airlines
Tue 3/2610:19 amONT - STS
1 stop5h 32mAmerican Airlines
Deal found 3/18$701
Fri 3/294:21 pmSTS - ONT
1 stop5h 38mAmerican Airlines
Mon 4/110:19 amONT - STS
1 stop5h 32mAmerican Airlines
Deal found 3/18$776
Mon 3/254:21 pmSTS - ONT
1 stop5h 24mAmerican Airlines
Tue 3/262:50 pmONT - STS
2 stops25h 01mAmerican Airlines
Deal found 3/18$990
Wed 3/274:21 pmSTS - ONT
1 stop5h 38mAmerican Airlines
Thu 3/287:36 pmONT - STS
1 stop20h 15mAmerican Airlines
Deal found 3/18$991

One-way flights to Ontario from Santa Rosa

Search for one-way flight options from Santa Rosa to Ontario. 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 3,145,932 searches. Data last updated March 19, 2024.
Users in need of a one-way flight from Santa Rosa to Ontario can choose from these deals. Those needing a return flight from Santa Rosa to Ontario can use the search form above.
Thu 5/22:18 pmSTS - ONT
1 stop9h 41mAlaska Airlines
Deal found 3/18$207
Sat 5/114:35 pmSTS - ONT
1 stop5h 18mAlaska Airlines
Deal found 3/18$211
Wed 4/1711:20 amSTS - ONT
1 stop10h 33mAlaska Airlines
Deal found 3/18$217
Thu 4/112:55 pmSTS - ONT
1 stop28h 09mAlaska Airlines
Deal found 3/18$222
Sat 5/1811:56 amSTS - ONT
1 stop8h 29mAlaska Airlines
Deal found 3/18$232
Thu 4/1111:22 amSTS - ONT
2 stops12h 37mAlaska Airlines
Deal found 3/18$233
Sat 5/252:18 pmSTS - ONT
1 stop9h 40mAlaska Airlines
Deal found 3/18$242
Mon 3/254:21 pmSTS - ONT
1 stop5h 24mAmerican Airlines
Deal found 3/18$243
Sat 5/1811:56 amSTS - ONT
2 stops12h 02mAlaska Airlines
Deal found 3/18$249

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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$397 - $616

Route

Depart

Return

Price

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Tue 4/16

1 stop7h 10m

Ontario

Wed 4/17

1 stop7h 23m

$397

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Tue 4/16

1 stop10h 33m

Ontario

Tue 4/23

1 stop7h 23m

$427

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Thu 8/8

1 stop5h 32m

Ontario

Tue 8/13

1 stop5h 52m

$486

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Sat 4/20

1 stop7h 10m

Ontario

Sun 4/21

1 stop8h 55m

$487

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Sat 4/20

1 stop7h 10m

Ontario

Sun 4/21

2 stops30h 23m

$508

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Sat 4/20

2 stops10h 08m

Ontario

Sun 4/21

2 stops30h 23m

$521

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Sun 4/7

1 stop24h 11m

Ontario

Fri 4/12

1 stop21h 55m

$547

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Thu 5/2

1 stop5h 32m

Ontario

Sun 5/5

1 stop5h 54m

$561

Santa Rosa Sonoma CountyOntario

STS - ONT

STSONT

Santa Rosa Sonoma County

Thu 4/11

1 stop5h 32m

Ontario

Sun 4/14

1 stop5h 54m

$616

Flights are sorted by cheapest first

Deals found on 3/18

Average price of flights to Ontario by month

Plan your trip from Santa Rosa to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from Santa Rosa to Ontario is currently $228 while a round-trip flight costs $506. Price data was last updated on March 10, 2024.

Currently, October is the cheapest month in which you can book a flight from Santa Rosa to Ontario (average of $238). Flying from Santa Rosa to Ontario in June is currently the most expensive (average of $357). 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.

January

$271

February

$287

March

$281

April

$306

May

$282

June

$357

July

$332

August

$288

September

$258

October

$238

November

$268

December

$271

Temperature and rainfall in Ontario by month

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

LAX

Temperature

57.2 - 73.4 °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 March 19, 2024.
Peruse reviews from past customers who have flown with Alaska Airlines and American 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.
8.1
Very good
9,150 reviews

Crew

8.6

Entertainment

7.4

Food

7.3

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

8.1
Very good
9,150 reviews
8.1
Very good
9,150 reviews

Crew

8.6

Entertainment

7.4

Food

7.3

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

7.3
Good
15,298 reviews
8.1
Very good
9,150 reviews

Crew

8.6

Entertainment

7.4

Food

7.3

Overall

8.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

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.
  • Can I find flights from Santa Rosa to Ontario for under $400 on Cheapflights?

    Yes, there are multiple flights from Santa Rosa to Ontario for under $400. The cheapest flight booked recently is on Alaska Airlines for just $397, but on average you can expect to pay $685.

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

    There are currently 4+ open flights from Santa Rosa to Ontario within the next 7 days for less than $800.

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

    Alaska Airlines, at $397, was found to be the cheapest airline from Santa Rosa to Ontario. An alternate airline flying to your destination would be American Airlines.

  • What does STS to ONT mean?

    This is defined as Santa Rosa Sonoma County Airport (STS) and Ontario Airport (ONT). Codes like Ontario Airport are often used to just call airports uniquely.

See more FAQs

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Alternative routes for Santa Rosa to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Santa Rosa to Ontario

Discover the top airline 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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$88Average$187FlexibilityNo cancel feeOn-timeN/A
Search Breeze Airways flights

Search flights from Santa Rosa to Ontario by cabin class

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Santa Rosa to Ontario?

Cheapflights helps you search for flights from Santa Rosa to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Santa Rosa to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Santa Rosa.

Can Cheapflights find flights from Santa Rosa to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Santa Rosa to Ontario with no change fees.

Can Cheapflights notify me if prices for flights from Santa Rosa to Ontario become cheaper?

Of course! You can now track prices for flights from Santa Rosa to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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