HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$61+ Cheap flights from Sacramento to Ontario (SMF - ONT)

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ONT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sacramento 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.

Cheapflights Tip: The best prices from Sacramento Intl to Ontario are usually found in October or December, booked 43 days in advance, depart on a Monday or Saturday and return on a Thursday

Find flight deals from Sacramento to Ontario

Cheapest flights from Sacramento to Ontario
Explore the most affordable flight options available from Sacramento to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:56 pmSMF - ONT
1 stop17h 14mFrontier
Thu 11/136:00 amONT - SMF
1 stop11h 31mFrontier
Deal found 10/27$143
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:17 amSMF - ONT
1 stop12h 33mFrontier
Sat 11/156:53 amONT - SMF
1 stop28h 28mFrontier
Deal found 10/29$145
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:11 pmSMF - ONT
1 stop5h 46mFrontier
Sat 11/156:53 amONT - SMF
1 stop28h 28mFrontier
Deal found 10/27$150
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:17 amSMF - ONT
1 stop12h 33mFrontier
Thu 11/1310:05 amONT - SMF
1 stop7h 26mFrontier
Deal found 10/28$163
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:17 amSMF - ONT
1 stop12h 33mFrontier
Thu 11/2012:23 pmONT - SMF
1 stop24h 52mFrontier
Deal found 10/27$169
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/64:11 pmSMF - ONT
1 stop5h 46mFrontier
Thu 11/1310:05 amONT - SMF
1 stop7h 26mFrontier
Deal found 10/26$170
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:31 pmSMF - ONT
1 stop25h 54mFrontier
Sun 12/75:18 pmONT - SMF
1 stop25h 28mFrontier
Deal found 10/28$176
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1212:31 pmSMF - ONT
1 stop25h 54mFrontier
Sun 12/145:18 pmONT - SMF
1 stop25h 28mFrontier
Deal found 10/27$178
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:10 pmSMF - ONT
1 stop4h 45mDelta
Mon 12/86:00 amONT - SMF
1 stop6h 32mDelta
Deal found 10/28$179
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/64:11 pmSMF - ONT
1 stop5h 46mFrontier
Sun 11/96:45 amONT - SMF
1 stop10h 14mFrontier
Deal found 10/28$183
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:11 pmSMF - ONT
1 stop22h 59mFrontier
Sun 11/164:05 pmONT - SMF
1 stop20h 13mFrontier
Deal found 10/29$191

Cheap flight deals from Sacramento to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Sacramento (SMF) 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 October 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$143
(CheapOair)

One-way from

$61
(CheapOair)

Popular in

July

Cheapest in

October

Average price

$186
Provider with most accurate pricing for Sacramento Intl-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sacramento Intl-Ontario flights.
Search Deals
From Sacramento Intl to Ontario
Search Deals
One-way flight from Sacramento Intl to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sacramento 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 October 29, 2025.
Use the filters below to find and compare flights from Sacramento to Ontario that are best for you.

Fly from

Sacramento

Fly to

Ontario

Route

Depart

Return

Price

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Thu 12/11

6:40 am-8:05 am

Nonstop1h 25m

Ontario

Mon 12/15

5:25 pm-6:55 pm

Nonstop1h 30m

$169

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Sat 12/6

5:10 pm-9:55 pm

1 stop4h 45m

Ontario

Mon 12/8

4:49 pm-11:59 pm

1 stop7h 10m

$179

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Tue 12/9

5:25 am-12:34 pm

1 stop7h 09m

Ontario

Sat 12/13

4:49 pm-10:26 pm

1 stop5h 37m

$179

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Wed 12/10

5:25 am-12:34 pm

1 stop7h 09m

Ontario

Sat 12/13

4:49 pm-10:26 pm

1 stop5h 37m

$179

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Sat 2/14

5:00 pm-10:52 pm

1 stop5h 52m

Ontario

Tue 2/17

5:05 pm-11:46 pm

1 stop6h 41m

$204

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Thu 1/22

6:00 am-12:16 pm

1 stop6h 16m

Ontario

Sun 1/25

5:03 pm-11:45 pm

1 stop6h 42m

$207

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Wed 12/24

11:50 am-1:15 pm

Nonstop1h 25m

Ontario

Sun 12/28

8:15 am-9:40 am

Nonstop1h 25m

$222

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Sun 12/7

8:50 pm-10:15 pm

Nonstop1h 25m

Ontario

Sun 12/14

6:00 am-7:25 am

Nonstop1h 25m

$235

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Thu 12/11

6:40 am-8:05 am

Nonstop1h 25m

Ontario

Sun 1/4

5:20 pm-11:50 pm

1 stop6h 30m

$244

SacramentoOntario

SMF - ONT

SMFONT

Sacramento Intl

Mon 1/19

8:40 am-10:05 am

Nonstop1h 25m

$85

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 20 results
1
2

Compare providers for flights from Sacramento 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 Sacramento to Ontario in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 Sacramento-Ontario flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Sacramento-Ontario flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Sacramento-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sacramento-Ontario flights, Cheapflights users trust Mytrip the most. Mytrip 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 Sacramento-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 Sacramento to Ontario

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

Cheapflights Insights

Everything you need to know about your flight from Sacramento to Ontario

How far ahead should I book a flight from Sacramento to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Sacramento to Ontario. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Sacramento to Ontario, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Sacramento to Ontario (average of $19). Flying from Sacramento to Ontario in September is currently the most expensive (average of $60). 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 SMF to ONT?

Find hourly flight availability from Sacramento 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 October 29, 2025.

When flying from Sacramento to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 27% versus a flight in the evening.

What is the cheapest day to fly from Sacramento to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Sacramento to Ontario. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Sacramento to Ontario flight should consider departing on Thursday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Sacramento to Ontario flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Sacramento to Ontario trip
Airports
SMF

Security lines at SMF can be hectic on weekday mornings, especially Mondays. Arrive early to avoid delays.

Read more about SMFby Matt Meltzer
ONT

ONT's rental car center offers quick access to I-10, ideal for exploring Southern California.

Read more about ONTby Bill Fink
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Matt Meltzer

Matt Meltzer

Expert on SMF

Matt Meltzer

Matt Meltzer

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Read more

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 October 29, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Sacramento 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.
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,001 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,124 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • What airports do I use to fly from Sacramento to Ontario?

    If you book a flight from Sacramento to Ontario, you will be flying from Sacramento Intl to Ontario. Flights to Ontario (ONT) from Sacramento Intl (SMF) take 1h 20m for a nonstop flight. There are 3 flights from Sacramento Intl to Ontario per day from 4 airlines.

  • How popular is this Sacramento to Ontario flight route?

    Flights from Sacramento Intl to Ontario have been viewed 22 times in the past calendar month.

  • How long is the flight from Sacramento to Ontario?

    A quick flight from Sacramento to Ontario can take about 1h 25m. Southwest provides one of the quickest options available for as low as $169. The distance between Sacramento and Ontario is about 390 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on Frontier is currently your cheapest option to Ontario, with prices starting at $54. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $98 and $158, respectively. Frontier is priced at 78% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Sacramento to Ontario?

    Looking for the cheapest flight from Sacramento to Ontario? While on average our users pay $265, our data indicates the cheapest price to be $105. The most popular route (Sacramento Intl - Ontario), is priced around $143.

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

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

  • How can I find direct flights from Sacramento to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Sacramento 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 Sacramento to Ontario?

    Currently, February is the cheapest month in which you can book a flight from Sacramento to Ontario (average of $19). Flying from Sacramento to Ontario in September is currently the most expensive (average of $60). 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 Sacramento to Ontario

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

Top 4 airlines flying from Sacramento to Ontario

Discover the top 4 airlines that operate flights from Sacramento 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$125FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$257FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$158Average$348FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$186Average$288FlexibilityNo cancel feeOn-time63%

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.