Ottawa Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $4.43 | $4.1 | $4.85 | $5.05 | $2.64 |
Highest Recorded Average Gas Price In Ottawa Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.16 | 09/12/26 |
| Regular | $4.47 | 09/11/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Ottawa
Thorntons in Ottawa (203 W Etna Rd)
203 W Etna Rd, Ottawa, Illinois,
$4.96
Sep 20, 2026
0¢ Cashback
Thorntons in Ottawa (203 W Etna Rd)
203 W Etna RdOttawaIllinois61350USA
Circle K in Ottawa (1500 Columbus St)
1500 Columbus St, Ottawa, Illinois,
$4.97
Sep 20, 2026
0¢ Cashback
Circle K in Ottawa (1500 Columbus St)
1500 Columbus StOttawaIllinois61350USA
Road Ranger in Ottawa (3041 IL-71)
3041 IL-71, Ottawa, Illinois,
$5.19
Sep 20, 2026
0¢ Cashback
Road Ranger in Ottawa (3041 IL-71)
3041 IL-71OttawaIllinois61350USA
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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.