SMF - ONT

$69 Find Cheap Flights from Sacramento to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sacramento to Ontario departing on 5/4. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Ontario, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$140
Typical prices: $435-$221
Frontier
Thu 4/30Sun 5/3
SMF - ONT • 1 stop
Cheapest non-stop
$189
Typical prices: $349-$197
Southwest
Wed 5/6Wed 5/13
SMF - ONT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest's two free checked bags cut luggage costs.
Use ONT Connect Shuttle for easy airport transfers.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $140 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest. Average duration is 1h 22m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $192 (round-trip)
Shortest trip • 4h 41m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 60% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
+1
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
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Flight Deals

Cheap Flights from Sacramento to Ontario (SMF-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sacramento to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sacramento to Ontario

Thu, Apr 30 - Sun, May 3
Frontier Logo
11:03 am - 11:55 pm
SMF
-
ONT
12h 52m
1 stop
Frontier Logo
12:59 am - 11:23 am
ONT
-
SMF
10h 24m
1 stop
$140Frontier
Mon, May 4 - Tue, May 5
Frontier Logo
2:10 pm - 8:04 pm
SMF
-
ONT
5h 54m
1 stop
Frontier Logo
10:50 am - 10:43 am
ONT
-
SMF
23h 53m
1 stop
$150Frontier
Sun, Apr 26 - Sat, May 2
Frontier Logo
6:52 pm - 1:10 pm
SMF
-
ONT
18h 18m
1 stop
Frontier Logo
12:59 am - 11:23 am
ONT
-
SMF
10h 24m
1 stop
$151Frontier
Thu, Apr 30 - Sat, May 2
Frontier Logo
11:03 am - 7:31 am
SMF
-
ONT
20h 28m
1 stop
Frontier Logo
12:59 am - 11:23 am
ONT
-
SMF
10h 24m
1 stop
$159Frontier
Fri, May 1 - Sat, May 2
Frontier Logo
11:03 am - 11:55 pm
SMF
-
ONT
12h 52m
1 stop
Frontier Logo
12:59 am - 11:23 am
ONT
-
SMF
10h 24m
1 stop
$160Frontier
Thu, Apr 23 - Wed, Apr 29
Frontier Logo
4:20 pm - 8:04 pm
SMF
-
ONT
3h 44m
1 stop
Frontier Logo
7:44 pm - 3:51 pm
ONT
-
SMF
20h 07m
1 stop
$171Frontier
Sat, May 30 - Mon, Jun 1
Frontier Logo
5:22 pm - 8:04 am
SMF
-
ONT
14h 42m
1 stop
Frontier Logo
3:30 pm - 4:27 pm
ONT
-
SMF
24h 57m
1 stop
$180Frontier
Fri, May 1 - Sat, May 2
Frontier Logo
11:03 am - 11:55 pm
SMF
-
ONT
12h 52m
1 stop
Frontier Logo
12:59 am - 11:23 am
ONT
-
SMF
10h 24m
1 stop
$181Frontier
Sun, Apr 26 - Thu, Apr 30
Frontier Logo
6:52 pm - 8:24 am
SMF
-
ONT
13h 32m
1 stop
Frontier Logo
5:43 pm - 11:23 am
ONT
-
SMF
17h 40m
1 stop
$183Frontier
Wed, May 6 - Wed, May 13
Southwest Logo
2:30 pm - 3:50 pm
SMF
-
ONT
1h 20mnonstop
Southwest Logo
3:45 pm - 5:10 pm
ONT
-
SMF
1h 25mnonstop
$189Southwest
Booking Insights

KAYAK's insights & trends for Sacramento to Ontario flights

Get data-powered insights and trends into flights from Sacramento to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sacramento to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sacramento to Ontario departing in April.

What’s the cheapest day of the week to fly from Sacramento to Ontario?

The average price of all round-trip flights from Sacramento to Ontario clicked on KAYAK for each day over the last 12 months.

For Sacramento to Ontario, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Ontario back to Sacramento, the best deals are generally found on Wednesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sacramento to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sacramento to Ontario is October, where tickets cost $210 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $356 and $354 respectively.

Can I save money by flying with a layover from Sacramento to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $281, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sacramento to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sacramento to Ontario, you should book around 4 weeks before departure, which saves you about 60% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Sacramento to Ontario

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Bill Fink

Bill Fink

Expert on SMF

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.

Good to know

Low seasonJanuary
Cheapest flight$69
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Sacramento to Ontario

When to book flights from Sacramento to Ontario

Are your dates flexible? Find out the best times to travel from Sacramento to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sacramento to Ontario

  • What is the cheapest flight from Sacramento to Ontario?

    In the last 3 days, the lowest price for a flight from Sacramento to Ontario was $69 for a one-way ticket and $140 for a round-trip.

  • Do I need a passport to fly between Sacramento and Ontario?

    No, a passport isn't needed to fly from Sacramento to Ontario. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Sacramento to Ontario?

    Alaska Airlines, Delta, American Airlines, and JetBlue offer inflight Wi-Fi service on the Sacramento to Ontario flight route.

  • Which aircraft models fly most regularly from Sacramento to Ontario?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Sacramento to Ontario flight route.

  • Which airline alliances offer flights from Sacramento to Ontario?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Sacramento and Ontario, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Sacramento to Ontario?

    There are nonstop flights from Sacramento to Ontario on a daily basis.

  • Which is the best airline for flights from Sacramento to Ontario, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Sacramento to Ontario are Southwest and Delta. With an average price for the route of $301 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $277 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Sacramento to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sacramento to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sacramento to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Sacramento is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sacramento to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Sacramento with another airline. Booking your flights between Sacramento and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sacramento to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Sacramento up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sacramento to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $139 or less one-way and $258 or less round-trip.

Prefer to fly direct from Sacramento to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Sacramento Intl to Ontario.
Find which airlines fly direct from Sacramento Intl Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

Sacramento Intl to Ontario

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Ontario to Sacramento Intl

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 4 airlines serving from Sacramento to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Sacramento to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sacramento to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4338 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

4.0 Okaysangeetha, Apr 2026
AUS - SJC
Read more Southwest reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

I took seat 15A in anticipation of window seat, there is no window.

The cabin temperature was nice and cool. The wifi was not working.

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Terrible, if possible won't be flying again anytime soon!

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

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

Other airlines flying from Sacramento to Ontario

Flights from the other most popular airlines that fly from Sacramento to Ontario according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.