Affton Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $3.44 | $3.72 | $4.01 | $3.58 | - |
| Month Ago Avg. | $3.44 | $3.72 | $4.01 | $3.58 | - |
Highest Recorded Average Gas Price In Affton Year to Date
| Price | Date | |
|---|---|---|
| Regular | $3.44 | 01/02/26 |
| Diesel | $3.58 | 01/02/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Affton
BP in Affton (8501 Morganford Rd)
8501 Morganford Rd, Affton, Missouri,
$3.13
May 13, 2026
0¢ Cashback
QuikTrip in Affton (9101 Gravois Rd)
9101 Gravois Rd, Affton, Missouri,
$3.19
May 13, 2026
0¢ Cashback
7-Eleven in Affton (8000 Mackenzie Rd)
8000 MacKenzie Rd, Affton, Missouri,
$3.19
May 13, 2026
0¢ Cashback
Phillips 66 in Affton (8445 Gravois Rd)
8445 Gravois Rd, Affton, Missouri,
$3.21
May 13, 2026
0¢ Cashback
7-Eleven in Affton (703 Union Rd)
703 Union Rd, Affton, Missouri,
$3.29
May 13, 2026
0¢ Cashback
Circle K in St Louis (9998 Tesson Ferry Rd)
9998 Tesson Ferry Rd, Affton, Missouri,
$3.44
May 13, 2026
0¢ Cashback
Circle K in Affton (9035 Gravois Rd)
9035 Gravois Ave, Affton, Missouri,
$3.54
May 13, 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.