HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sacramento

$70+ Cheap flights from Ontario to Sacramento (ONT - SMF)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SMF
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Sacramento 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 Ontario to Sacramento Intl are usually found in May or October, booked 40 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

Cheap flight deals from Ontario to Sacramento

Cheapest flights from Ontario to Sacramento
Explore the most affordable flight options available from Ontario to Sacramento. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.

This Frontier deal was found by Cheapflights users on 7/30. 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 8/2011:15 am
ONT
-
SMF
1 stop7h 37m
Frontier
Sat 8/2211:42 am
SMF
-
ONT
1 stop12h 08m
Frontier
Deal found 7/30$142
This Frontier deal was found by Cheapflights users on 7/30. 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 8/2011:15 am
ONT
-
SMF
1 stop7h 37m
Frontier
Mon 8/246:23 pm
SMF
-
ONT
1 stop21h 31m
Frontier
Deal found 7/30$143
This CheapOair deal was found by Cheapflights users on 7/30. 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.
Wed 8/267:56 pm
ONT
-
SMF
1 stop15h 01m
Frontier
Wed 9/211:42 am
SMF
-
ONT
1 stop12h 08m
Frontier
Deal found 7/30$152
This Frontier deal was found by Cheapflights users on 8/1. 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 9/311:15 am
ONT
-
SMF
1 stop7h 37m
Frontier
Thu 9/108:37 am
SMF
-
ONT
1 stop8h 22m
Frontier
Deal found 8/1$160
This Frontier deal was found by Cheapflights users on 8/1. 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.
Mon 9/142:30 pm
ONT
-
SMF
1 stop4h 29m
Frontier
Tue 9/1511:53 am
SMF
-
ONT
1 stop11h 54m
Frontier
Deal found 8/1$161
This Frontier deal was found by Cheapflights users on 8/1. 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 9/311:15 am
ONT
-
SMF
1 stop7h 37m
Frontier
Fri 9/411:42 am
SMF
-
ONT
1 stop12h 08m
Frontier
Deal found 8/1$173
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:56 pm
ONT
-
SMF
1 stop15h 01m
Frontier
Sat 9/511:42 am
SMF
-
ONT
1 stop22h 22m
Frontier
Deal found 7/30$175
This Southwest deal was found by Cheapflights users on 8/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:45 pm
ONT
-
SMF
Nonstop1h 25m
Southwest
Sat 9/1911:00 am
SMF
-
ONT
Nonstop1h 20m
Southwest
Deal found 8/1$177
This CheapOair deal was found by Cheapflights users on 7/31. 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 9/311:15 am
ONT
-
SMF
1 stop7h 37m
Frontier
Mon 9/76:23 pm
SMF
-
ONT
1 stop21h 26m
Frontier
Deal found 7/31$180
This Frontier deal was found by Cheapflights users on 7/31. 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 8/2811:50 am
ONT
-
SMF
1 stop7h 02m
Frontier
Mon 8/3111:42 am
SMF
-
ONT
1 stop12h 08m
Frontier
Deal found 7/31$183
This Frontier deal was found by Cheapflights users on 7/31. 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 9/188:24 pm
ONT
-
SMF
1 stop21h 04m
Frontier
Mon 9/2111:35 am
SMF
-
ONT
1 stop12h 12m
Frontier
Deal found 7/31$186

Find flight deals from Ontario to Sacramento

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Sacramento (SMF). 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 August 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$142
(Frontier)

One-way from

$70
(Super.com)

Popular in

February

Cheapest in

May

Average price

$323
Provider with most accurate pricing for Ontario-Sacramento Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Sacramento Intl flights.
Search Deals
From Ontario to Sacramento Intl
Search Deals
One-way flight from Ontario to Sacramento Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Sacramento 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 August 2, 2026.
Use the filters below to find and compare flights from Ontario to Sacramento that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Sat 8/29

5:40 am-9:10 am

1 stop3h 30m

Sacramento Intl

Sat 9/5

5:30 am-11:15 am

2 stops5h 45m

$202
Quickest round-trip

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Tue 9/1

3:00 pm-4:20 pm

Nonstop1h 20m

Sacramento Intl

Wed 9/2

11:50 am-1:10 pm

Nonstop1h 20m

$211

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Tue 9/1

9:10 am-10:30 am

Nonstop1h 20m

Sacramento Intl

Tue 9/1

12:55 pm-5:35 pm

1 stop4h 40m

$221

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Fri 9/4

2:00 pm-10:35 pm

1 stop8h 35m

Sacramento Intl

Tue 9/8

1:30 pm-2:55 pm

Nonstop1h 25m

$236

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 8/20

6:30 pm-7:50 pm

Nonstop1h 20m

Sacramento Intl

Mon 8/24

8:15 am-1:25 pm

1 stop5h 10m

$241

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Sun 9/6

7:05 am-11:20 am

1 stop4h 15m

Sacramento Intl

Mon 9/7

8:50 pm-10:20 pm

Nonstop1h 30m

$242

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Fri 10/23

5:30 am-11:45 am

2 stops6h 15m

Sacramento Intl

Sat 10/24

12:55 pm-9:00 pm

1 stop8h 05m

$251

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Sat 8/29

1:00 pm-9:00 pm

1 stop8h 00m

Sacramento Intl

Mon 8/31

9:15 am-3:05 pm

2 stops5h 50m

$256

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Fri 9/4

7:13 pm-11:57 pm

1 stop4h 44m

Sacramento Intl

Sun 9/6

2:27 pm-8:01 pm

1 stop5h 34m

$268
Cheapest one-way
Quickest one-way

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Wed 9/30

3:00 pm-4:20 pm

Nonstop1h 20m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Ontario to Sacramento

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 Ontario to Sacramento in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice 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 Ontario-Sacramento flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Sacramento flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Sacramento flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Sacramento 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 Ontario-Sacramento 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 Ontario to Sacramento

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

Cheapflights Insights

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

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

To ensure you get the cheapest price possible for a flight from Ontario to Sacramento, you should look to book at least 90 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 Ontario to Sacramento?

Currently, May is the cheapest month in which you can book a flight from Ontario to Sacramento (average of $267). Flying from Ontario to Sacramento in February is currently the most expensive (average of $376). 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 ONT to SMF?

Find hourly flight availability from Ontario to Sacramento. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 2, 2026.

One of the essential ways to save on airfare from Ontario to Sacramento is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 10% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Sacramento. Price data was last updated on July 25, 2026.

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

How much does it cost to fly round-trip from Ontario to Sacramento?

Airfare is below average for this route at the moment.

Ontario to Sacramento flights typically cost between $253 and $439 in August.
The cheapest round-trip price found within the last 5 days was $142 on Frontier (Aug 20-Aug 27).

The best insider tips for Ontario to Sacramento flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Sacramento trip
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

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 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 Sacramento

Get insights into the airlines that provide service to Sacramento. 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 Sacramento. Reviews last updated August 2, 2026.
Read through reviews of airlines operating flights from Ontario to Sacramento, such as Southwest,United Airlines, andFrontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,229 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
10,062 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,741 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Sacramento. 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 Ontario to Sacramento?

    To fly from Ontario to Sacramento, you need to book a flight from Ontario (ONT) to Sacramento Intl (SMF). Nonstop flights to Sacramento Intl from Ontario take 1h 20m on average. When it comes time to book airfare, you have a few options: there are 2 outbound flights from Ontario to Sacramento Intl offered by 3 different airlines.

  • How popular is this Ontario to Sacramento flight route?

    Within the past month, 29 users have taken a look at flights from Ontario to Sacramento Intl.

  • How long is the flight from Ontario to Sacramento?

    Departing from Ontario to Sacramento will take you 3h 30m. The distance from Ontario to Sacramento is about 390 mi.

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

    Cheapflights users have booked flights from Ontario to Sacramento round-trip from $77. Other airlines that can offer you cheap pricing are Southwest, from $192, and United Airlines, from $218. Frontier is currently priced 76% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ontario to Sacramento one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $78. Southwest flights start at $94 while deals on United Airlines start at $103 one-way.

  • What are the cheapest flights from Ontario to Sacramento?

    While on average a flight from Ontario to Sacramento is generally $256, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Ontario - Sacramento Intl), you can expect to pay $197 for that flight.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Ontario to Sacramento (average of $267). Flying from Ontario to Sacramento in February is currently the most expensive (average of $376). 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

Traveling to a place near Sacramento?

Book flights to Sacramento if you plan to visit one of these locations
Placerville
Willows
Auburn
Oroville
Plymouth
Yuba City
Lincoln
Rocklin

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 Ontario to Sacramento

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
Ontario to San Francisco flights
Santa Ana to Las Vegas flights
San Francisco to Ontario flights
San Francisco to Los Angeles flights
Los Angeles to San Francisco flights
Ontario to Las Vegas flights
Santa Ana to San Francisco flights
San Jose to Los Angeles flights
San Francisco to San Diego flights
San Francisco to Santa Ana flights
San Jose to Las Vegas flights
San Diego to Las Vegas flights
Burbank to Las Vegas flights
Los Angeles to San Jose flights
Oakland to Las Vegas flights
Sacramento to Las Vegas flights
Los Angeles to Reno flights
San Diego to San Francisco flights
Los Angeles to Sacramento flights
Burbank to San Francisco flights
Sacramento to Los Angeles flights
Las Vegas to Los Angeles flights
Las Vegas to San Francisco flights
Long Beach to Las Vegas flights
Las Vegas to Reno flights
Reno to Las Vegas flights
San Jose to San Diego flights
Los Angeles to Oakland flights
Ontario to Reno flights
Fresno to Las Vegas flights
Sacramento to San Diego flights
Las Vegas to San Diego flights
Las Vegas to Ontario flights
San Francisco to Palm Springs flights
Stockton to Las Vegas flights
San Francisco to Burbank flights
San Jose to Santa Ana flights
Las Vegas to Santa Ana flights
Oakland to San Diego flights
San Francisco to Long Beach flights
San Jose to Ontario flights
Sacramento to Ontario flights
Fresno to San Diego flights
Oakland to Santa Ana flights
Santa Ana to Reno flights
Santa Rosa to Las Vegas flights
Long Beach to San Francisco flights

Top 3 airlines flying from Ontario to Sacramento

Discover the top 3 airlines that operate flights from Ontario to Sacramento. 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 August 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$77Average$181FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$192Average$329FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$218Average$376FlexibilityNo cancel feeOn-time69%

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.
Site
©2026 Cheapflights