Affton Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.04 | $4.42 | $4.72 | $4.82 | - |
| Month Ago Avg. | $3.44 | $3.72 | $4.01 | $3.58 | - |
Highest Recorded Average Gas Price In Affton Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.82 | 06/15/26 |
| Regular | $4.04 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Affton
Phillips 66 in Affton (8445 Gravois Rd)
8445 Gravois Rd, Affton, Missouri,
$4.16
Jul 01, 2026
0¢ Cashback
QuikTrip in Affton (9101 Gravois Rd)
9101 Gravois Rd, Affton, Missouri,
$4.19
Jul 01, 2026
0¢ Cashback
Phillips 66 in Affton (9765 Mackenzie Rd)
9765 MacKenzie Rd, Affton, Missouri,
$4.19
Jul 01, 2026
0¢ Cashback
7-Eleven in Affton (8000 Mackenzie Rd)
8000 MacKenzie Rd, Affton, Missouri,
$4.19
Jul 01, 2026
0¢ Cashback
7-Eleven in Affton (703 Union Rd)
703 Union Rd, Affton, Missouri,
$4.19
Jul 01, 2026
0¢ Cashback
BP in Affton (8501 Morganford Rd)
8501 Morganford Rd, Affton, Missouri,
$4.26
Jul 01, 2026
0¢ Cashback
Circle K in St Louis (9998 Tesson Ferry Rd)
9998 Tesson Ferry Rd, Affton, Missouri,
$4.44
Jul 01, 2026
0¢ Cashback
Circle K in Affton (9035 Gravois Rd)
9035 Gravois Ave, Affton, Missouri,
$4.54
Jul 01, 2026
0¢ 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.