SMF - ONT

$85 Find Cheap Flights from Sacramento to Ontario - Compare and Save

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 9/5. 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

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Everything you should know

Cheapest round-trip
$179
Typical prices: $200-$378
United Airlines
Tue 8/4Tue 8/18
SMF - ONT • 1 stop
Cheapest non-stop
$185
Typical prices: $200-$389
Southwest
Thu 8/6Tue 8/11
SMF - ONT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier Economy Bundle adds a carry-on and seat choice for budget value.
Southwest Rapid Rewards has no blackout dates; free snacks add extra value.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $172 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with Southwest. Average duration is 1h 22m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $207 (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 49% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 28% price drop
Most popular
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We hope you love your trip to Ontario!
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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

Tue, Aug 4 - Tue, Aug 18
United Airlines Logo
6:00 am - 12:12 pm
SMF
-
ONT
6h 12m
1 stop
United Airlines Logo
9:01 am - 1:52 pm
ONT
-
SMF
4h 51m
1 stop
$179United Airlines
Thu, Aug 6 - Tue, Aug 11
Southwest Logo
6:00 am - 7:25 am
SMF
-
ONT
1h 25mnonstop
Southwest Logo
9:10 am - 10:30 am
ONT
-
SMF
1h 20mnonstop
$185Southwest
Thu, Aug 6 - Tue, Aug 11
Southwest Logo
6:00 am - 7:25 am
SMF
-
ONT
1h 25mnonstop
Southwest Logo
7:45 am - 12:15 pm
ONT
-
SMF
4h 30m
1 stop
$189Southwest
Thu, Aug 6 - Tue, Aug 11
Southwest Logo
5:20 am - 9:20 am
SMF
-
ONT
4h 00m
1 stop
Southwest Logo
5:45 am - 10:50 am
ONT
-
SMF
5h 05m
1 stop
$192Southwest
Tue, Aug 11 - Sat, Aug 15
Delta Logo
5:00 pm - 11:34 pm
SMF
-
ONT
6h 34m
1 stop
Delta Logo
6:00 am - 12:18 pm
ONT
-
SMF
6h 18m
1 stop
$197Delta
Thu, Aug 6 - Thu, Aug 13
Southwest Logo
11:15 am - 12:40 pm
SMF
-
ONT
1h 25mnonstop
Southwest Logo
12:00 pm - 1:25 pm
ONT
-
SMF
1h 25mnonstop
$198Southwest
Thu, Aug 6 - Thu, Aug 13
Southwest Logo
6:00 am - 7:25 am
SMF
-
ONT
1h 25mnonstop
Southwest Logo
4:50 pm - 10:45 pm
ONT
-
SMF
5h 55m
1 stop
$202Southwest
Tue, Aug 4 - Tue, Aug 18
Southwest Logo
1:30 pm - 2:55 pm
SMF
-
ONT
1h 25mnonstop
Southwest Logo
4:45 pm - 6:10 pm
ONT
-
SMF
1h 25mnonstop
$203Southwest
Mon, Aug 3 - Fri, Aug 7
Southwest Logo
12:00 pm - 1:25 pm
SMF
-
ONT
1h 25mnonstop
Southwest Logo
12:00 pm - 1:25 pm
ONT
-
SMF
1h 25mnonstop
$205Southwest
Thu, Aug 6 - Thu, Aug 13
Southwest Logo
5:55 pm - 9:45 pm
SMF
-
ONT
3h 50m
1 stop
Southwest Logo
12:35 pm - 6:55 pm
ONT
-
SMF
6h 20m
1 stop
$206Southwest
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 August.

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, Tuesday 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 Saturday, 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 $341 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 $309, 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 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 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 seasonJune
Cheapest flight$85
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 15% increase in price.
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 long-term parking options are available at Sacramento International Airport (SMF)?

    You have access to three long-term parking options at SMF airport: Economy Lot ($10 per day), Daily Lot ($12 per day), and Parking Garage ($18 per day). All of them are located at Terminals A and B. The Economy Lot is the best option if you're going on a long trip.

  • How do I get to downtown Ontario, CA, from Ontario International Airport (ONT)?

    When you land at ONT, you can opt for several Southern California bus and rail transportation options. Taxis, limos, car rentals, and ridesharing apps also provide a great alternative to getting to downtown Ontario, CA. Bus and rail transportation is more affordable compared to the other options.

  • Does Sacramento International Airport (SMF) offer free Wi-Fi?

    You can easily access complimentary Wi-Fi at Sacramento International Airport (SMF). This is possible by connecting to the network “FlySacramento”. There are also multiple internet kiosks at different Terminals of the airport. Take advantage of this to surf and finalize some work before boarding your flight.

  • Are there food outlets at Sacramento International Airport (SMF)?

    SMF has multiple eateries operating at different schedules, some opening doors as early as 4 am. Grab a tasty bite preflight at Freshii’s, Illy Coffee Kiosk, Starbucks, Vino Volo, Squeeze Burger, Iron Horse Tavern, and other food concessions at the airport. Most of them are located at Terminals A and B. You can also access vending machines in the same terminals.

  • What is the cheapest flight from Sacramento to Ontario?

    In the last 5 days, the lowest price for a flight from Sacramento to Ontario was $85 for a one-way ticket and $172 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 $302 and an overall rating of 7.9, 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 7.8.

  • 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 $154 or less one-way and $286 or less round-trip.
  • Sacramento International Airport (SMF) is a pet-friendly airport for passengers traveling with dogs. All dogs should be on a leash and under the owner's control. There are multiple pet relief sections in and out of the airport. The pet relief stations are fitted with artificial turf, mini fire hydrants, and waste bags. They provide an excellent environment for your pet to relieve itself.
  • Economy class travelers at Sacramento International Airport (SMF) can access the Escape Lounge at Terminals A and B. You can get a day pass, annual membership, or pay at the door. The Escape Lounge offers the perfect environment to relax as you wait for your flight. Visit this section if you get to the airport earlier.
  • The SacRT Airport Express Bus, Route 142, is the direct bus that provides a fast and affordable way to get to the airport from downtown Sacramento. You can board this bus at the baggage claim area at Sacramento International Airport (SMF). Yolobus (routes 42B and 42A) is another viable option to get to the airport from downtown Sacramento. Other options include taxis, car rentals, and ridesharing services.
  • Ontario International Airport (ONT) has several baby care rooms at Terminals 2 and 4, where you can breastfeed or change your baby's diapers. Take advantage of these baby care facilities if you're traveling with an infant and land at the airport. These rooms provide a soothing environment to breastfeed your baby.
  • Travelers with reduced mobility or other disabilities can access multiple services at Ontario International Airport (ONT). There are multiple elevators, wheelchair services, relay service for deaf travelers, accessible parking, and restrooms. The airport is designed to offer easy movements to passengers with reduced mobility.

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.
7.9
SouthwestOverall score based on 4249 reviews
7.5Entertainment
8.0Comfort
8.1Boarding
7.0Food
8.6Crew
Airline reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

6.0 GoodSteven, Jun 2026
LAS - ONT
Read more Southwest reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

Was fine, delayed and feels like southwest is always late

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

Friendly and efficient service. On time departure and earlier arrival.

The flight in it self was good. The delays looking for pilots was unexpected.

Flight was on time. Friendly staff and flight was smooth. We Love Southwest.

I had a great flight from Sacramento to San Diego on 2024-09-20 (at 9:00 am). Everything worked well, the crew was pleasant and efficient. Thank you!

Flight delayed four separate times. I’m now one hour hours late to landing.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

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

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

Awesome! On time flight, early arrival, and a complimentary upgrade!

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

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.

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

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

The first flight was better in terms of the aircraft.

This was a short flight with no food. The attendants were great but the comfort was poor: just to cramped. The flight from Denver to Frankfort was excellent! Seating was roomier, food was good, service was good. This was a great experience.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Flight attendant was sincerely mean -- a true disgrace to an otherwise pretty crummy company anyway. Really embarrassing. I actually feel bad for United.

Bag check employee was on the phone the whole time… couldn’t even explain why I was missing tags and just looked at me funny and laughed while he was on the phone. Horrible customer service.

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

I couldn’t check in because the app didn’t work. It took 3 Frontier employees at the counter to get me checked in. Flight left 3 hours after departure time

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

Literally everything could have been better. Why are the planes always late?

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

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.