Washington Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $4.94 | $4.96 | $5.22 | $5.44 | $4.66 |
Top 10 Gas Stations & Cheap Fuel Prices in Washington
Maverik in Medical Lake (10707 W State Rd 2)
10707 W State Rd 2, Medical Lake, Washington,
$3.64
Oct 01, 2026
0¢ Cashback
NomNom in Spokane (6607 N Nine Mile Rd)
6607 N Nine Mile Rd, Spokane, Washington,
$3.74
Oct 01, 2026
0¢ Cashback
Petro America in Chehalis (118 US-12)
118 US-12, Chehalis, Washington,
$3.85
Oct 01, 2026
0¢ Cashback
Cougar Den in White Swan (620 Signal Peak Rd)
620 Signal Peak Rd, White Swan, Washington,
$3.85
Oct 01, 2026
0¢ Cashback
Conoco in Spokane (925 E Wellesley Ave)
925 EAST WELLESLEY AVE, SPOKANE, Washington,
$3.95
Oct 01, 2026
0¢ Cashback
Conoco in Spokane (8213 N Market St)
8213 NORTH MARKET ST, SPOKANE, Washington,
$3.98
Oct 01, 2026
0¢ Cashback
Conoco in Spokane (3725 S Grand Blvd)
3725 SOUTH GRAND BLVD, SPOKANE, Washington,
$4.05
Oct 01, 2026
0¢ Cashback
Conoco in Spokane (3125 E Mission Ave)
3125 EAST MISSION AVE, SPOKANE, Washington,
$4.05
Oct 01, 2026
0¢ Cashback
76 in Liberty Lake (21804 E Mission Ave)
21804 EAST MISSION AVE, LIBERTY LAKE, Washington,
$4.06
Oct 01, 2026
0¢ Cashback
NomNom in Asotin (204 First St)
204 First St, Asotin, Washington,
$4.07
Oct 01, 2026
0¢ Cashback
Pricing Trends
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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.