Cheapest Gas in Champaign, IL

Updated May 20, 2026 — Prices updated regularly from EIA data

$3.42

Lowest price at Costco in Champaign

Finding Cheap Gas in Champaign

The best-priced gas in Champaign, Illinois is at $$3.42 per gallon — that's $$0.25 below the local average. Over 50 fill-ups per year, that's $$12.00 in your pocket without changing how you drive.

Maximum Savings in Champaign

Choose Costco over Chevron

$0.25 per gallon

$3.75 per 15-gallon fill • $12.00 per year (est.)

Cheapest Brands in Champaign

Rank	Brand	Est. Price	Savings vs. Most Expensive
#1	Costco	$3.42	$0.25
#2	Speedway	$3.54	$0.13
#3	Circle K	$3.55	$0.12
#4	Sunoco	$3.58	$0.09
#5	Marathon	$3.59	$0.08
#6	BP	$3.61	$0.06
#7	Mobil	$3.62	$0.05
#8	Exxon	$3.63	$0.04
#9	Shell	$3.65	$0.02
#10	Chevron	$3.67	$0.00

Gas Saving Tips for Champaign Drivers

Use the GasBuddy or Waze app to compare prices within 5 miles of your location before every fill-up. Even a 10-cent difference on 15 gallons saves $1.50 each fill-up.
Join a warehouse club (Costco, Sam's Club, BJ's) — their fuel consistently runs 10-25 cents below local market prices. The membership cost typically pays for itself in fuel savings within the first two months.
Sign up for gas station loyalty apps — Shell Fuel Rewards, Marathon MakeItCount, and Circle K Inner Circle all offer genuine per-gallon discounts that compound over time.
Use a gas rewards credit card. The Costco Citi Visa earns 4% back on eligible gas; Blue Cash Preferred earns 3% at US gas stations. Pairing a reward card with a warehouse club maximizes savings.
Avoid filling up at highway exits, airports, and tourist areas where convenience premiums routinely add 15-25 cents per gallon.