Cheap flights from Ontario (ONT) to California from $35
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. 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.
ONT — LAX
May 21 — May 281
From?
To?
1 adult, Economy
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When is the cheapest time to fly from Ontario to California (ONT - CA)?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to California as you normally would.
Cheap Frontier flights from Ontario to California
Explore cheap flight options specifically provided by Frontier for the route between Ontario and California. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from Ontario to California. Come back soon if you're not finding the exact deal you're looking for.
Fri 6/148:16 amONT - SFO
Nonstop1h 28mFrontier
Fri 6/215:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$69
Thu 7/47:59 amONT - SFO
Nonstop1h 27mFrontier
Mon 7/85:50 amSFO - ONT
Nonstop1h 22mFrontier
Deal found 5/15$70
Sat 6/17:39 amONT - SFO
Nonstop1h 28mFrontier
Thu 6/65:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/16$71
Mon 6/107:59 amONT - SFO
Nonstop1h 27mFrontier
Thu 6/135:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$72
Mon 7/17:59 amONT - SFO
Nonstop1h 27mFrontier
Thu 7/45:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$73
Thu 7/47:59 amONT - SFO
Nonstop1h 27mFrontier
Mon 7/85:50 amSFO - ONT
Nonstop1h 22mFrontier
Deal found 5/16$74
Sun 6/237:59 amONT - SFO
Nonstop1h 27mFrontier
Mon 6/245:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/16$75
Tue 7/28:09 amONT - SFO
Nonstop1h 28mFrontier
Thu 7/45:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$76
Thu 6/277:59 amONT - SFO
Nonstop1h 27mFrontier
Sat 6/295:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$77
Cheap American Airlines flights from Ontario to California
Explore cheap flight options specifically provided by American Airlines for the route between Ontario and California. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Browse through some of the cheapest American Airlines flights traveling from Ontario to California. Check back soon if you're not seeing flights that suit your needs.
Fri 9/612:40 pmONT - RNO
1 stop5h 50mAmerican Airlines
Wed 9/116:00 amRNO - ONT
1 stop5h 44mAmerican Airlines
Deal found 5/16$208
Fri 9/66:15 amONT - SJC
1 stop5h 39mAmerican Airlines
Sun 9/86:00 amSJC - ONT
1 stop5h 44mAmerican Airlines
Deal found 5/14$261
Fri 9/2712:40 pmONT - RNO
1 stop5h 50mAmerican Airlines
Sun 9/294:15 pmRNO - ONT
1 stop5h 29mAmerican Airlines
Deal found 5/15$287
Sat 9/144:45 pmONT - SJC
1 stop5h 27mAmerican Airlines
Mon 9/1612:45 pmSJC - ONT
1 stop27h 02mAmerican Airlines
Deal found 5/15$290
Thu 5/237:40 pmONT - LAS
1 stop4h 13mAmerican Airlines
Sat 5/256:34 amLAS - ONT
1 stop5h 13mAmerican Airlines
Deal found 5/15$319
Thu 5/239:00 pmONT - RNO
1 stop3h 44mAmerican Airlines
Sat 5/256:00 amRNO - ONT
1 stop5h 47mAmerican Airlines
Deal found 5/15$326
Fri 5/246:45 amONT - RNO
1 stop5h 15mAmerican Airlines
Tue 5/284:21 pmRNO - ONT
1 stop6h 08mAmerican Airlines
Deal found 5/15$416
Sat 5/2512:53 pmONT - SJC
1 stop5h 40mAmerican Airlines
Sun 5/266:10 amSJC - ONT
1 stop5h 37mAmerican Airlines
Deal found 5/15$444
Thu 5/239:00 pmONT - SMF
1 stop3h 41mAmerican Airlines
Sun 5/266:02 amSMF - ONT
1 stop5h 45mAmerican Airlines
Deal found 5/15$446
Cheap Ontario to California flights in May & June 2024
Find cheap flight options from Ontario to California specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
The lowest fares we've come across on flights traveling from Ontario to California in May and June 2024. Check back soon for alternative fares.
Fri 5/1711:04 pmONT - LAS
Nonstop1h 14mFrontier
Fri 5/242:30 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 5/14$86
Thu 6/279:45 pmONT - LAS
Nonstop1h 13mFrontier
Sun 6/306:00 amLAS - ONT
Nonstop1h 03mFrontier
Deal found 5/14$87
Thu 5/237:39 amONT - SFO
Nonstop1h 28mFrontier
Sat 5/255:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/15$87
Thu 6/277:33 pmONT - LAS
Nonstop1h 06mFrontier
Sun 6/306:00 amLAS - ONT
Nonstop1h 03mFrontier
Deal found 5/15$88
Fri 6/148:16 amONT - SFO
Nonstop1h 28mFrontier
Mon 6/175:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$88
Tue 5/215:41 pmONT - LAS
Nonstop1h 11mFrontier
Wed 5/222:56 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 5/15$89
Tue 5/217:39 amONT - SFO
Nonstop1h 28mFrontier
Thu 5/235:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/15$89
Mon 5/207:39 amONT - SFO
Nonstop1h 28mFrontier
Tue 5/215:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/14$90
Wed 5/2211:30 pmONT - LAS
Nonstop1h 14mFrontier
Sun 5/268:28 amLAS - ONT
Nonstop1h 04mFrontier
Deal found 5/14$91
Ontario to California 2024 flight deals
Discover exclusive flight deals for travel between Ontario and California in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
The lowest fares we've come across on flights traveling from Ontario to California in May and June 2024. Check back soon for alternative fares.
Thu 8/89:36 pmONT - LAS
Nonstop1h 24mFrontier
Sun 8/118:00 amLAS - ONT
Nonstop1h 06mFrontier
Deal found 5/15$76
Tue 7/28:09 amONT - SFO
Nonstop1h 28mFrontier
Thu 7/45:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$76
Thu 7/1110:39 amONT - SMF
Nonstop1h 23mFrontier
Tue 7/238:28 amSMF - ONT
Nonstop1h 21mFrontier
Deal found 5/14$76
Wed 5/157:36 pmONT - LAS
Nonstop1h 05mFrontier
Fri 5/315:16 pmLAS - ONT
Nonstop1h 07mFrontier
Deal found 5/14$77
Mon 7/17:59 amONT - SFO
Nonstop1h 27mFrontier
Wed 7/35:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$77
Mon 9/910:39 amONT - SMF
Nonstop1h 23mFrontier
Thu 9/128:28 amSMF - ONT
Nonstop1h 21mFrontier
Deal found 5/15$77
Wed 5/1511:09 pmONT - LAS
Nonstop1h 12mFrontier
Thu 6/136:00 amLAS - ONT
Nonstop1h 03mFrontier
Deal found 5/15$78
Thu 6/67:59 amONT - SFO
Nonstop1h 27mFrontier
Mon 6/175:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$78
Thu 7/1110:41 amONT - SMF
Nonstop1h 29mFrontier
Mon 7/153:29 pmSMF - ONT
Nonstop1h 25mFrontier
Deal found 5/16$78
Non-stop flights to California from Ontario
Discover non-stop flight options from Ontario to California. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
If you're seeking options on non-stop flights from Ontario to California, check out these fares. Search for alternative flights from Ontario to California by utilizing the search form above.
Sun 5/267:39 amONT - SFO
Nonstop1h 28mFrontier
Tue 5/285:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/16$35
Wed 6/58:14 amONT - SFO
Nonstop1h 28mFrontier
Tue 6/115:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/15$36
Mon 6/1012:55 pmONT - LAS
Nonstop1h 11mFrontier
Thu 6/1312:59 pmLAS - ONT
Nonstop1h 10mFrontier
Deal found 5/16$38
Sun 5/267:39 amONT - SFO
Nonstop1h 28mFrontier
Wed 6/55:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/16$38
Thu 5/301:26 pmONT - LAS
Nonstop1h 10mFrontier
Mon 6/311:12 amLAS - ONT
Nonstop1h 10mFrontier
Deal found 5/15$39
Sat 6/87:59 amONT - SFO
Nonstop1h 27mFrontier
Sat 7/65:45 amSFO - ONT
Nonstop1h 22mFrontier
Deal found 5/15$39
Sat 7/133:14 pmONT - LAS
Nonstop1h 18mFrontier
Thu 7/256:00 amLAS - ONT
Nonstop1h 03mFrontier
Deal found 5/16$40
Tue 5/287:39 amONT - SFO
Nonstop1h 28mFrontier
Wed 6/55:45 amSFO - ONT
Nonstop1h 23mFrontier
Deal found 5/16$40
Thu 5/306:11 pmONT - LAS
Nonstop1h 09mFrontier
Tue 6/48:00 amLAS - ONT
Nonstop1h 04mFrontier
Deal found 5/16$41
Ontario to California flights leaving soon
Find last-minute flight options from Ontario to California for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users seeking a last-minute flight from Ontario to California should consider booking one of these fares. Tip: verify your flight details before completing your reservation.
Sat 5/2510:10 pmONT - LAS
Nonstop1h 17mFrontier
Sun 5/268:28 amLAS - ONT
Nonstop1h 04mFrontier
Deal found 5/15$104
Sat 5/257:39 amONT - SFO
Nonstop1h 28mFrontier
Mon 5/275:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/15$105
Fri 5/2411:04 pmONT - LAS
Nonstop1h 14mFrontier
Sun 5/266:25 amLAS - ONT
Nonstop1h 04mFrontier
Deal found 5/16$107
Mon 5/207:39 amONT - SFO
Nonstop1h 28mFrontier
Thu 5/235:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/15$108
Sat 5/257:39 amONT - SFO
Nonstop1h 28mFrontier
Tue 5/285:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/16$112
Wed 5/227:39 amONT - LAS
1 stop4h 13mFrontier
Wed 5/222:56 pmLAS - ONT
Nonstop1h 09mFrontier
Deal found 5/15$113
Wed 5/227:39 amONT - SFO
Nonstop1h 28mFrontier
Wed 5/2212:07 pmSFO - ONT
1 stop3h 58mFrontier
Deal found 5/15$113
Sun 5/2611:30 pmONT - LAS
Nonstop1h 14mFrontier
Wed 5/291:09 pmLAS - ONT
1 stop4h 11mFrontier
Deal found 5/14$115
Wed 5/2912:59 amONT - SFO
1 stop6h 51mFrontier
Sat 6/15:15 amSFO - ONT
Nonstop1h 24mFrontier
Deal found 5/15$115
One-way flights to California from Ontario
Search for one-way flight options from Ontario to California. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the one-way flights we've detected from Ontario to California. Users needing a return flight from Ontario to California should utilize the search form above.
Fri 5/2411:04 pmONT - LAS
Nonstop1h 14mFrontier
Deal found 5/15$44
Sun 6/237:59 amONT - SFO
Nonstop1h 27mFrontier
Deal found 5/14$44
Tue 11/1210:39 amONT - SMF
Nonstop1h 23mFrontier
Deal found 5/15$44
Tue 5/215:41 pmONT - LAS
Nonstop1h 11mFrontier
Deal found 5/15$45
Sat 6/17:39 amONT - SFO
Nonstop1h 28mFrontier
Deal found 5/15$45
Tue 5/218:29 pmONT - LAS
Nonstop1h 12mFrontier
Deal found 5/16$46
Sun 6/237:59 amONT - SFO
Nonstop1h 27mFrontier
Deal found 5/15$46
Fri 5/2411:04 pmONT - LAS
Nonstop1h 14mFrontier
Deal found 5/16$48
Mon 6/177:59 amONT - SFO
Nonstop1h 27mFrontier
Deal found 5/15$49
Find flights from Ontario to California within your budget
Customize your flight search to find flights from Ontario to California 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 2,637,452 searches. Data last updated May 16, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$69 - $192
Route
Depart
Return
Price
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Thu 6/27
Nonstop1h 06m
Las Vegas Harry Reid Intl
Mon 7/1
Nonstop1h 04m
$69
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Fri 6/14
Nonstop1h 28m
San Francisco
Fri 6/21
Nonstop1h 23m
$69
OntarioSacramento Intl
ONT - SMF
ONTSMF
Ontario
Tue 7/23
Nonstop1h 26m
Sacramento Intl
Fri 7/26
Nonstop1h 24m
$69
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Thu 7/4
Nonstop1h 06m
Las Vegas Harry Reid Intl
Sun 7/7
Nonstop1h 03m
$70
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Thu 7/4
Nonstop1h 27m
San Francisco
Mon 7/8
Nonstop1h 22m
$70
OntarioLas Vegas Harry Reid Intl
ONT - LAS
ONTLAS
Ontario
Mon 7/29
Nonstop1h 05m
Las Vegas Harry Reid Intl
Thu 8/1
Nonstop1h 10m
$175
OntarioSacramento Intl
ONT - SMF
ONTSMF
Ontario
Tue 8/6
1 stop4h 33m
Sacramento Intl
Fri 8/9
1 stop4h 29m
$187
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Wed 6/5
Nonstop1h 28m
San Francisco
Tue 6/11
2 stops10h 18m
$190
OntarioSacramento Intl
ONT - SMF
ONTSMF
Ontario
Thu 6/6
1 stop3h 17m
Sacramento Intl
Sat 6/8
1 stop6h 37m
$192
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. 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 California. Reviews last updated May 16, 2024.
Get a feel of what it's like to fly with Frontier, American Airlines and Southwest from Ontario to California by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
6,040 reviews
Crew
8.7
Food
7.3
Overall
8.2
Boarding
8.3
Comfort
8.1
Entertainment
7.8
Reviews
1 / 10
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Southwest
6,040 reviews
Southwest
6,040 reviews
Crew
8.7
Food
7.3
Overall
8.2
Boarding
8.3
Comfort
8.1
Entertainment
7.8
Reviews
1 / 10
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
9,157 reviews
Southwest
6,040 reviews
Crew
8.7
Food
7.3
Overall
8.2
Boarding
8.3
Comfort
8.1
Entertainment
7.8
Reviews
1 / 10
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
10,673 reviews
Southwest
6,040 reviews
Crew
8.7
Food
7.3
Overall
8.2
Boarding
8.3
Comfort
8.1
Entertainment
7.8
Reviews
1 / 10
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
10,924 reviews
Southwest
6,040 reviews
Crew
8.7
Food
7.3
Overall
8.2
Boarding
8.3
Comfort
8.1
Entertainment
7.8
Reviews
1 / 10
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
14,514 reviews
Southwest
6,040 reviews
Crew
8.7
Food
7.3
Overall
8.2
Boarding
8.3
Comfort
8.1
Entertainment
7.8
Reviews
1 / 10
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Related info for your journey
Find useful and relevant information for your journey from Ontario to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Ontario to CaliforniaSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Ontario to California
Discover the top 8 airlines that operate flights from Ontario to California. 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 2,637,452 searches. Data last updated May 16, 2024.
Search flights from Ontario to California by cabin class
Find flights from Ontario to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Ontario to California
Find hourly flight availability from Ontario to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 16, 2024.
| 30%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 44%of flight departures | Morning6 am to noon |
| 17%of flight departures | AfternoonNoon to 6 pm |
| 9%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
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Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to California flexibly with Cheapflights today.
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Not ready to book yet? You can track prices for flights from Ontario to California on Cheapflights with our Price Alert feature and get notified when better prices are available.