Cheap Business Class Flights from Ontario to San Francisco
ONT — SFO
Aug 18 — Aug 251
Round-trip
1 adult, Business
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Essential info for Business Class flights from Ontario to San Francisco
Find the latest flights to San Francisco in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data were last updated on July 19, 2026.
Top Rated Airline | American Airlines |
|---|---|
No. of Airlines | 5 |
Arrival Airport | San Francisco Airport |
Find Business Class flight deals from Ontario to San Francisco
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Cheapest business class flights to San FranciscoExplore the most affordable business class flight options available to San Francisco. Find the lowest fares based on data from user searches, with prices last updated on July 19, 2026.
Explore the most affordable business class flight options available to San Francisco. Find the lowest fares based on data from user searches, with prices last updated on July 19, 2026.
This Expedia deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:17 pm
ONT
- SFO
1 stop21h 39m
Frontier
Thu 9/39:00 am
SFO
- ONT
Nonstop1h 29m
Frontier
Deal found 7/19![Frontier logo]()
$429
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:38 pm
ONT
- SFO
1 stop19h 05m
Frontier
Thu 8/69:05 pm
SFO
- ONT
1 stop10h 58m
Frontier
Deal found 7/18![Frontier logo]()
$554
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:15 am
ONT
- SFO
1 stop6h 34m
American Airlines
Tue 9/15:33 am
SFO
- ONT
1 stop6h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$637
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Wed 9/25:33 am
SFO
- ONT
1 stop6h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Sun 9/63:46 pm
SFO
- ONT
1 stop6h 09m
American Airlines
Deal found 7/19![American Airlines logo]()
$707
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Thu 9/35:33 am
SFO
- ONT
1 stop6h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$769
Best business class flights to San FranciscoDiscover carefully curated business class flight deals to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
Discover carefully curated business class flight deals to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:38 pm
ONT
- SFO
1 stop19h 05m
Frontier
Thu 8/69:05 pm
SFO
- ONT
1 stop10h 58m
Frontier
Deal found 7/18![Frontier logo]()
$554
This Alaska Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:02 am
ONT
- SFO
2 stops10h 35m
Alaska Airlines
Wed 9/27:46 pm
SFO
- ONT
1 stop20h 24m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$863
This Alaska Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:12 am
ONT
- SFO
2 stops15h 38m
Alaska Airlines
Sun 9/67:10 am
SFO
- ONT
1 stop13h 14m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$868
This Alaska Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:12 am
ONT
- SFO
1 stop16h 16m
Alaska Airlines
Sun 9/67:10 am
SFO
- ONT
1 stop13h 14m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$895
This Alaska Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:37 am
ONT
- SFO
1 stop6h 07m
Alaska Airlines
Wed 11/46:59 pm
SFO
- ONT
1 stop4h 50m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$906
This Alaska Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:12 am
ONT
- SFO
1 stop16h 16m
Alaska Airlines
Sat 9/57:46 pm
SFO
- ONT
1 stop20h 24m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$930
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:48 am
ONT
- SFO
Nonstop1h 27m
Frontier
Deal found 7/18![Frontier logo]()
$245
This KAYAK deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Deal found 7/17![American Airlines logo]()
$297
This Booking.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:12 pm
ONT
- SFO
1 stop18h 01m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$391
This Expedia deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:09 pm
ONT
- SFO
1 stop4h 01m
Frontier
Deal found 7/15![Frontier logo]()
$284
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:47 pm
ONT
- SFO
1 stop5h 41m
American Airlines
Deal found 7/18![American Airlines logo]()
$319
This KAYAK deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:11 pm
ONT
- SFO
1 stop5h 58m
American Airlines
Deal found 7/17![American Airlines logo]()
$382
One-way business class flights to San FranciscoSearch for one-way business class flight options to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
Search for one-way business class flight options to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
This Expedia deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:58 am
ONT
- SFO
Nonstop1h 27m
Frontier
Deal found 7/15![Frontier logo]()
$133
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:48 am
ONT
- SFO
Nonstop1h 27m
Frontier
Deal found 7/18![Frontier logo]()
$245
This KAYAK deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Deal found 7/17![American Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:47 pm
ONT
- SFO
1 stop5h 41m
American Airlines
Deal found 7/18![American Airlines logo]()
$319
This KAYAK deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:11 pm
ONT
- SFO
1 stop5h 58m
American Airlines
Deal found 7/17![American Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:59 am
ONT
- SFO
1 stop6h 06m
American Airlines
Deal found 7/18![American Airlines logo]()
$385
Quickest business class flights to San FranciscoExplore quickest business class flight options to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 19, 2026.
Explore quickest business class flight options to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 19, 2026.
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Wed 9/25:33 am
SFO
- ONT
1 stop6h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$703
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Sun 9/63:46 pm
SFO
- ONT
1 stop6h 09m
American Airlines
Deal found 7/19![American Airlines logo]()
$707
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Thu 9/35:33 am
SFO
- ONT
1 stop6h 30m
American Airlines
Deal found 7/19![American Airlines logo]()
$769
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Sun 9/63:46 pm
SFO
- ONT
1 stop6h 09m
American Airlines
Deal found 7/19![American Airlines logo]()
$773
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Sun 9/63:46 pm
SFO
- ONT
1 stop6h 09m
American Airlines
Deal found 7/19![American Airlines logo]()
$777
This KAYAK deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:04 pm
ONT
- SFO
1 stop6h 07m
American Airlines
Thu 9/178:00 am
SFO
- ONT
1 stop4h 06m
American Airlines
Deal found 7/17![American Airlines logo]()
$775
This Expedia deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:58 am
ONT
- SFO
Nonstop1h 27m
Frontier
Deal found 7/15![Frontier logo]()
$133
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:48 am
ONT
- SFO
Nonstop1h 27m
Frontier
Deal found 7/18![Frontier logo]()
$245
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:47 pm
ONT
- SFO
1 stop5h 41m
American Airlines
Deal found 7/18![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:47 pm
ONT
- SFO
1 stop5h 41m
American Airlines
Deal found 7/18![American Airlines logo]()
$453
This KAYAK deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:11 pm
ONT
- SFO
1 stop5h 58m
American Airlines
Deal found 7/17![American Airlines logo]()
$382
This KAYAK deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:59 pm
ONT
- SFO
1 stop6h 06m
American Airlines
Deal found 7/17![American Airlines logo]()
$297
Travel insights for business class flights from Ontario to San Francisco
Get recent, data-driven insights about business class flights from Ontario to San Francisco including ideal travel times, pricing trends, and more.
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