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Cheap flights from Ontario to San Francisco from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Francisco departing on 1/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:04 am - 12:57 pm
ONT
-
SMF
25h 53m1 stop
Frontier Logo
2:27 pm - 6:40 pm
SMF
-
ONT
4h 13m1 stop
$137Frontier
Thu, Feb 5 - Sat, Feb 7
Frontier Logo
8:48 pm - 12:57 pm
ONT
-
SMF
16h 09m1 stop
Frontier Logo
1:48 pm - 7:10 pm
SMF
-
ONT
5h 22m1 stop
$145Frontier
Thu, Jan 29 - Mon, Feb 2
Frontier Logo
8:48 pm - 12:57 pm
ONT
-
SMF
16h 09m1 stop
Frontier Logo
1:48 pm - 7:10 pm
SMF
-
ONT
5h 22m1 stop
$156Frontier
Thu, Jan 29 - Mon, Feb 2
Frontier Logo
8:48 pm - 12:57 pm
ONT
-
SMF
16h 09m1 stop
Frontier Logo
2:27 pm - 6:40 pm
SMF
-
ONT
4h 13m1 stop
$161Frontier
Thu, Jan 22 - Sat, Jan 24
Frontier Logo
3:22 pm - 12:57 pm
ONT
-
SMF
21h 35m1 stop
Frontier Logo
1:48 pm - 1:37 pm
SMF
-
ONT
23h 49m1 stop
$162Frontier
Thu, Jan 22 - Mon, Jan 26
Frontier Logo
8:07 am - 3:49 pm
ONT
-
SMF
7h 42m1 stop
Frontier Logo
8:53 am - 1:11 pm
SMF
-
ONT
4h 18m1 stop
$167Frontier
Fri, Feb 20 - Mon, Feb 23
Frontier Logo
8:48 pm - 12:57 pm
ONT
-
SMF
16h 09m1 stop
Frontier Logo
1:48 pm - 12:10 pm
SMF
-
ONT
22h 22m1 stop
$168Frontier
Thu, Jan 22 - Sun, Jan 25
Frontier Logo
7:15 am - 11:18 am
ONT
-
SMF
28h 03m1 stop
Frontier Logo
12:03 pm - 3:07 pm
SMF
-
ONT
27h 04m1 stop
$169Frontier
Sat, Jan 24 - Mon, Jan 26
Frontier Logo
9:43 pm - 11:47 am
ONT
-
SMF
14h 04m1 stop
Frontier Logo
10:53 am - 11:59 pm
SMF
-
ONT
13h 06m1 stop
$171Frontier
Fri, Feb 27 - Mon, Mar 2
Southwest Logo
7:20 pm - 8:50 pm
ONT
-
SMF
1h 30mnonstop
Southwest Logo
12:45 pm - 2:05 pm
SMF
-
ONT
1h 20mnonstop
$174Southwest
Tue, Feb 10 - Tue, Feb 17

Frontier flights from Ontario to Sacramento

Our best Frontier deals on Ontario to Sacramento flight tickets
Frontier
Feb 5
ONT11:04 amOntario
25h 53m
1 stop
SMF12:57 pmSacramento Intl
Feb 7
SMF2:27 pmSacramento Intl
4h 13m
1 stop
ONT6:40 pmOntario
$137
Frontier
Jan 29
ONT8:48 pmOntario
16h 09m
1 stop
SMF12:57 pmSacramento Intl
Feb 2
SMF1:48 pmSacramento Intl
5h 22m
1 stop
ONT7:10 pmOntario
$145
Frontier
Jan 29
ONT8:48 pmOntario
16h 09m
1 stop
SMF12:57 pmSacramento Intl
Feb 2
SMF1:48 pmSacramento Intl
5h 22m
1 stop
ONT7:10 pmOntario
$156

United Airlines flights from Ontario to Sacramento

Our best United Airlines deals on Ontario to Sacramento flight tickets
United Airlines
Feb 6
ONT6:00 amOntario
4h 24m
1 stop
SMF10:24 amSacramento Intl
Feb 8
SMF6:00 amSacramento Intl
5h 18m
1 stop
ONT11:18 amOntario
$207
United Airlines
Jan 13
ONT1:53 pmOntario
3h 21m
1 stop
SMF5:14 pmSacramento Intl
Jan 18
SMF2:25 pmSacramento Intl
3h 18m
1 stop
ONT5:43 pmOntario
$377
United Airlines
Jan 13
ONT6:00 amOntario
4h 24m
1 stop
SMF10:24 amSacramento Intl
Feb 6
SMF6:00 amSacramento Intl
5h 18m
1 stop
ONT11:18 amOntario
$408

momondo 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, momondo users made 832,500 searches. Data last updated January 8, 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

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 2/5

11:04 am-12:57 pm

1 stop25h 53m

Sacramento Intl

Sat 2/7

2:27 pm-6:40 pm

1 stop4h 13m

$137

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 1/29

8:48 pm-12:57 pm

1 stop16h 09m

Sacramento Intl

Mon 2/2

1:48 pm-7:10 pm

1 stop5h 22m

$145

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 1/29

8:48 pm-12:57 pm

1 stop16h 09m

Sacramento Intl

Mon 2/2

1:48 pm-7:10 pm

1 stop5h 22m

$156

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 1/22

8:48 pm-12:57 pm

1 stop16h 09m

Sacramento Intl

Sat 1/24

2:27 pm-6:40 pm

1 stop4h 13m

$161

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 1/22

3:22 pm-12:57 pm

1 stop21h 35m

Sacramento Intl

Mon 1/26

1:48 pm-1:37 pm

1 stop23h 49m

$162

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Fri 2/20

8:07 am-3:49 pm

1 stop7h 42m

Sacramento Intl

Mon 2/23

8:53 am-1:11 pm

1 stop4h 18m

$167

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 1/22

8:48 pm-12:57 pm

1 stop16h 09m

Sacramento Intl

Sun 1/25

1:48 pm-12:10 pm

1 stop22h 22m

$168

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Sat 1/24

7:15 am-11:18 am

1 stop28h 03m

Sacramento Intl

Mon 1/26

12:03 pm-3:07 pm

1 stop27h 04m

$169

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Fri 2/27

9:43 pm-11:47 am

1 stop14h 04m

Sacramento Intl

Mon 3/2

10:53 am-11:59 pm

1 stop13h 06m

$171

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Tue 2/10

7:20 pm-8:50 pm

Nonstop1h 30m

Sacramento Intl

Tue 2/17

12:45 pm-2:05 pm

Nonstop1h 20m

$174

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Ontario to Sacramento

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sacramento?

The month of May is, on average, the cheapest month to fly to Sacramento from Ontario, with most prices found around $243. If you are unable to visit Sacramento during the month of May, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $259.

What is the cheapest day to depart on your flight to Sacramento?

The cheapest day to depart from Ontario to Sacramento is on a Thursday when prices can be found for as low as $163. Flights from Ontario to Sacramento on a Monday will generally be more expensive and average around $196. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Sacramento?

According to our data, the cheapest time of day to fly to Sacramento is at noon. momondo users have found flights departing from Ontario to Sacramento at noon for as low as $155. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $196. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Ontario to Sacramento Intl flight route?

Fly from Ontario to Sacramento Intl for the best Ontario - Sacramento Intl flight prices

How far in advance should I book a flight to Sacramento?

You are more likely to see cheaper flights to Sacramento from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Sacramento for around $278 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sacramento from Ontario for as low as $210 on momondo.

What cabin class options are available on Ontario to Sacramento Intl flights?

There is only 1 cabin class available to choose from on Ontario to Sacramento Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ontario to Sacramento flights?

You could potentially save up to 1% on your flight if you consider stops on a Ontario to Sacramento flight.

How have Ontario to Sacramento flight prices changed over time?

As of January 2026, prices for Ontario to Sacramento flights are approximately 147% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Sacramento

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Sacramento according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Sacramento (ONT to SMF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Sacramento

Best Price Found

$199

Fastest flight time

1h 20m

Direct flights

Every day

Airports in Sacramento

1 airport
The best one-way flight to Sacramento from Ontario in the past 72 hours is $199. The best round-trip flight deal from Ontario to Sacramento found on momondo in the last 72 hours is $249.
The fastest flight from Ontario to Sacramento takes 1h 20m
Direct flights go from Ontario to Sacramento every day.
There is 1 airport in Sacramento. From Ontario there are direct flights to Sacramento Intl (SMF).
Search flight deals

  • How far is Ontario to Sacramento Intl by plane?

    The straight-line distance from Ontario to Sacramento Intl is 378.1 mi. 1h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ontario Airport to Sacramento Intl Airport?

    Prices for flights from Ontario Airport to Sacramento Intl Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Sacramento Intl Airport?

  • How old do you have to be to fly from Ontario Airport to Sacramento Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Sacramento Intl Airport.

  • What documentation or ID do you need to fly to Sacramento Intl Airport?

    The necessary travel and health documents for your Sacramento Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ontario to Sacramento?

  • What is the most popular airline from Ontario to Sacramento?

Best airlines flying from Ontario to Sacramento

Compare and see reviews for airlines that fly from Ontario to Sacramento with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $68Free CancellationRating
5.7
3,061 reviews
Search Frontier flights
SouthwestPriceFrom $189Free CancellationRating
8.0
4,250 reviews
Search Southwest flights

  • Southwest Flights From Ontario to Sacramento

    Southwest flight deals from Ontario to Sacramento start from $189 round-trip. Over the 25 Southwest flights for this route in a normal week, average airfare is usually $276 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Chico
Oroville
Lincoln
Yuba City
Rocklin
Auburn
Marysville
Grass Valley
Nevada City
Placerville
Plymouth
Willows
El Dorado Hills

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Sacramento?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Sacramento. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Sacramento with flexible booking policies on momondo?

All flight searches from Ontario to Sacramento on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Sacramento?

Once all potential Ontario to Sacramento flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Sacramento right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Sacramento now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sacramento and let you know when they change.

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