SEARCH ONE AND DONE. - Compare hundreds of travel sites at once.
Choose where to book.
Find deals from over 400 airlines worldwide.

Cheap Flights from San Francisco to Ontario (SFO - ONT)

DepartReturn
1 adult
Note: some airlines charge for infants in laps.
The price shown for each flight will be the average for all passengers including any infants.
Choose Sites to Compare vs. KAYAK

Best fares from SFO to ONT (Found by others)

Sun Mon Tue Wed Thu Fri Sat
  1 $359 2 $361 3 $359 4 $359 5 $357 6 $359
7 $382 8 $249 9 $249 10 $224 11 $224 12 $224 13 $222
14 $327 15 $199 16 $222 17 $199 18 $199 19 $199 20 $222
21 $199 22 $202 23
$202
24 $199 25 $199 26 $199 27 $202
28
$202
29
$202
30 $199        
KAYAK searches hundreds of sites to find the best rate for your next flight from San Francisco to Ontario. Get the best flight deal for your Ontario trip!
Here's how it works. Search KAYAK for a flight ticket from San Francisco to Ontario. Sort, filter and compare results on one web page. Then book your plane ticket direct on the airline or travel agent site of your choice!
Select an airline:  United
Direct flights SFO to ONT on United
Flight # Depart SFO Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
5374 8:33 am 9:56 am Sep 20 - Oct 4
5374 8:33 am 9:56 am Oct 6 - Oct 25
5374 8:45 am 10:08 am Oct 5 - Oct 5
5374 9:00 am 10:23 am Sep 11 - Sep 19
5374 9:00 am 10:23 am Sep 2 - Sep 8
5374 9:01 am 10:24 am Sep 9 - Sep 17
5336 10:20 am 11:43 am Aug 28 - Sep 19
5336 10:40 am 12:03 pm Sep 20 - Oct 25
5353 12:40 pm 2:03 pm Oct 1 - Oct 25
5363 2:55 pm 4:18 pm Sep 20 - Sep 30
5363 2:55 pm 4:18 pm Oct 1 - Oct 25
5363 3:03 pm 4:26 pm Sep 16 - Sep 19
5363 3:03 pm 4:26 pm Sep 7 - Sep 15
5363 3:03 pm 4:26 pm Sep 9 - Sep 10
5363 3:10 pm 4:33 pm Sep 6 - Sep 13
5376 7:05 pm 8:25 pm Sep 16 - Sep 16
5416 7:05 pm 8:25 pm Sep 7 - Sep 15
5416 7:05 pm 8:25 pm Sep 17 - Sep 19
5416 7:05 pm 8:25 pm Sep 13 - Sep 13
5473 7:05 pm 8:25 pm Sep 9 - Sep 10
5353 7:11 pm 8:31 pm Sep 20 - Sep 27
5376 7:11 pm 8:31 pm Oct 4 - Oct 4
5416 7:11 pm 8:31 pm Oct 7 - Oct 17
5416 7:11 pm 8:31 pm Sep 21 - Oct 6
5416 7:11 pm 8:31 pm Sep 30 - Sep 30
5422 11:00 pm 12:20 am Aug 28 - Oct 24