Ontario Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $5.04 | $5.06 | $5.33 | $6.08 | $2.77 |
Highest Recorded Average Gas Price In Ontario Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $6.09 | 10/14/26 |
| Regular | $5.04 | 09/26/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Ontario
Chevron in Ontario (1425 E 4th St)
1425 E 4th St, Ontario, California,
$4.29
Oct 24, 2026
0¢ Cashback
Speedway Express in Ontario (808 N Mountain Ave)
808 N Mountain Ave, Ontario, California,
$4.49
Oct 24, 2026
0¢ Cashback
76 in Ontario (1850 E Holt Blvd)
1850 E Holt Blvd, Ontario, California,
$4.67
Oct 24, 2026
0¢ Cashback
7-Eleven in Ontario (2200 S Haven Ave)
2200 S Haven Ave, Ontario, California,
$4.99
Oct 24, 2026
0¢ Cashback
Ontario Fuel in Ontario (1315 E 4th St)
1315 E 4th St, Ontario, California,
$5.04
Oct 24, 2026
0¢ Cashback
Circle G in Ontario (1155 N Grove Ave)
1155 N Grove Ave, Ontario, California,
$5.06
Oct 24, 2026
0¢ Cashback
Anthem Oil in Ontario (2963 S Archibald Ave)
2963 S Archibald Ave, Ontario, California,
$5.09
Oct 24, 2026
0¢ Cashback
Chevron in Ontario (791 N Milliken Ave)
791 N Milliken Ave, Ontario, California,
$5.15
Oct 24, 2026
0¢ Cashback
ARCO in Ontario (911 N Milliken Ave)
911 N Milliken Ave, Ontario, California,
$5.19
Oct 24, 2026
0¢ Cashback
Shell in Ontario (1521 E 4th St)
1521 E 4th St, Ontario, California,
$5.19
Oct 24, 2026
3¢ Cashback
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.