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Cheap flights from Ontario to San Francisco from $55

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 11/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

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Southwest Logo
5:55 am - 11:30 amONT-SMF
5h 35m1 stop
Southwest Logo
5:00 pm - 6:25 pmSMF-ONT
1h 25mnonstop
$202Southwest
Find Deal
Fri, Dec 5 - Sat, Dec 6
Frontier Logo
6:30 am - 1:28 pmONT-SMF
6h 58m1 stop
Frontier Logo
4:17 pm - 9:06 pmSMF-ONT
4h 49m1 stop
$203Frontier
Find Deal
Thu, Nov 20 - Sun, Nov 23
American Airlines Logo
12:26 pm - 6:45 pmONT-SMF
6h 19m1 stop
American Airlines Logo
10:06 am - 4:19 pmSMF-ONT
6h 13m1 stop
$207American Airlines
Find Deal
Sat, Feb 28 - Tue, Mar 3
Frontier Logo
6:45 am - 4:59 pmONT-SMF
10h 14m1 stop
Frontier Logo
12:11 pm - 11:50 pmSMF-ONT
11h 39m1 stop
$209Frontier
Find Deal
Sun, Nov 9 - Thu, Nov 13
Frontier Logo
6:30 am - 1:28 pmONT-SMF
6h 58m1 stop
Frontier Logo
4:17 pm - 9:06 pmSMF-ONT
4h 49m1 stop
$211Frontier
Find Deal
Thu, Nov 20 - Thu, Nov 27
Delta Logo
6:00 am - 5:51 pmONT-SMF
11h 51m2 stops
Delta Logo
5:25 am - 12:34 pmSMF-ONT
7h 09m1 stop
$212Delta
Find Deal
Thu, Dec 11 - Sun, Dec 14
Southwest Logo
11:30 am - 1:00 pmONT-SMF
1h 30mnonstop
Southwest Logo
6:40 am - 8:05 amSMF-ONT
1h 25mnonstop
$215Southwest
Find Deal
Wed, Dec 3 - Fri, Dec 5
Delta Logo
1:29 pm - 10:10 pmONT-SMF
8h 41m2 stops
Delta Logo
5:15 pm - 11:58 pmSMF-ONT
6h 43m1 stop
$240Delta
Find Deal
Fri, Dec 12 - Sun, Dec 14
United Airlines Logo
6:00 am - 9:41 amONT-SMF
3h 41m1 stop
United Airlines Logo
5:00 am - 12:32 pmSMF-ONT
7h 32m1 stop
$249United Airlines
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Thu, Dec 4 - Tue, Dec 9
United Airlines Logo
1:24 pm - 9:31 pmONT-SMF
8h 07m1 stop
United Airlines Logo
5:00 am - 12:47 pmSMF-ONT
7h 47m1 stop
$258United Airlines
Find Deal
Thu, Jan 29 - Sun, Feb 1

United Airlines flights from Ontario to Sacramento

Our best United Airlines deals on Ontario to Sacramento flight tickets
United Airlines
Dec 4
ONT6:00 amOntario
3h 41m
1 stop
SMF9:41 amSacramento Intl
Dec 9
SMF5:00 amSacramento Intl
7h 32m
1 stop
ONT12:32 pmOntario
$249
Find similar
United Airlines
Jan 29
ONT1:24 pmOntario
8h 07m
1 stop
SMF9:31 pmSacramento Intl
Feb 1
SMF5:00 amSacramento Intl
7h 47m
1 stop
ONT12:47 pmOntario
$258
Find similar
United Airlines
Feb 12
ONT6:00 amOntario
4h 08m
1 stop
SMF10:08 amSacramento Intl
Feb 18
SMF5:00 amSacramento Intl
7h 43m
1 stop
ONT12:43 pmOntario
$267
Find similar

Southwest flights from Ontario to Sacramento

Our best Southwest deals on Ontario to Sacramento flight tickets
Southwest
Dec 5
ONT5:55 amOntario
5h 35m
1 stop
SMF11:30 amSacramento Intl
Dec 6
SMF5:00 pmSacramento Intl
1h 25m
ONT6:25 pmOntario
$202
Find similar
Southwest
Dec 3
ONT11:30 amOntario
1h 30m
SMF1:00 pmSacramento Intl
Dec 5
SMF6:40 amSacramento Intl
1h 25m
ONT8:05 amOntario
$215
Find similar
Southwest
Dec 18
ONT3:45 pmOntario
6h 25m
2 stops
SMF10:10 pmSacramento Intl
Dec 20
SMF8:35 pmSacramento Intl
1h 25m
ONT10:00 pmOntario
$217
Find similar

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 October 28, 2025.
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

Fri 12/5

5:55 am-11:30 am

1 stop5h 35m

Sacramento Intl

Sat 12/6

5:00 pm-6:25 pm

Nonstop1h 25m

$202

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 11/20

6:30 am-1:28 pm

1 stop6h 58m

Sacramento Intl

Sun 11/23

4:17 pm-9:06 pm

1 stop4h 49m

$203

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Sat 2/28

12:26 pm-6:45 pm

1 stop6h 19m

Sacramento Intl

Tue 3/3

10:06 am-4:19 pm

1 stop6h 13m

$207

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Sun 11/9

6:45 am-4:59 pm

1 stop10h 14m

Sacramento Intl

Thu 11/13

12:11 pm-11:50 pm

1 stop11h 39m

$209

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 11/20

6:30 am-1:28 pm

1 stop6h 58m

Sacramento Intl

Thu 11/27

4:17 pm-9:06 pm

1 stop4h 49m

$211

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 12/11

6:00 am-5:51 pm

2 stops11h 51m

Sacramento Intl

Sun 12/14

5:25 am-12:34 pm

1 stop7h 09m

$212

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Wed 12/3

11:30 am-1:00 pm

Nonstop1h 30m

Sacramento Intl

Fri 12/5

6:40 am-8:05 am

Nonstop1h 25m

$215

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Fri 12/12

1:29 pm-10:10 pm

2 stops8h 41m

Sacramento Intl

Sun 12/14

5:15 pm-11:58 pm

1 stop6h 43m

$240

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 12/4

6:00 am-9:41 am

1 stop3h 41m

Sacramento Intl

Tue 12/9

5:00 am-12:32 pm

1 stop7h 32m

$249

OntarioSacramento

ONT - SMF

ONTSMF

Ontario

Thu 1/29

1:24 pm-9:31 pm

1 stop8h 07m

Sacramento Intl

Sun 2/1

5:00 am-12:47 pm

1 stop7h 47m

$258

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 December is, on average, the cheapest month to fly to Sacramento from Ontario, with most prices found around $185. If you are unable to visit Sacramento during the month of December, then departing from Ontario during the month November is also very affordable. Most momondo users find prices during this month for around $198.

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 $155. Flights from Ontario to Sacramento on a Sunday will generally be more expensive and average around $194. 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 $143. 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 $195. 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 $254 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 $191 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?

No. A direct flight is the cheapest option for a flight between Ontario to Sacramento.

How have Ontario to Sacramento flight prices changed over time?

As of October 2025, prices for Ontario to Sacramento flights are approximately 48% cheaper 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

$178

Fastest flight time

1h 25m

Direct flights

Every day

Airports in Sacramento

1 airport
The best one-way flight to Sacramento from Ontario in the past 72 hours is $178. The best round-trip flight deal from Ontario to Sacramento found on momondo in the last 72 hours is $257.
The fastest flight from Ontario to Sacramento takes 1h 25m
Direct flights go from Ontario to Sacramento every day.
There is 1 airport near Sacramento: 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 25m 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 $58Free CancellationRating
5.8
3,122 reviews
Search Frontier flights
SouthwestPriceFrom $190Free CancellationRating
8.0
4,235 reviews
Search Southwest flights

  • Southwest Flights From Ontario to Sacramento

    Southwest flight deals from Ontario to Sacramento start from $190 round-trip. Over the 27 Southwest flights for this route in a normal week, average airfare is usually $279 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
Rocklin
Yuba City
Lincoln
Auburn
Marysville
Grass Valley
Placerville
Nevada City
Willows
Plymouth
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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