The fastest way to find cheap gas is a price-tracking app or website that shows current prices at stations around you

Gas prices change by the hour and vary widely between stations only miles apart. Rather than driving from pump to pump, use GasBuddy, AAA TripTik, or your phone's built-in maps to see real-time prices at nearby stations before you leave home. These tools let you filter by distance, brand, or price range, and many show whether a station accepts your payment method or has a rewards program.

The trade-off is accuracy: prices come from user reports or station feeds, so they can lag by 15 to 30 minutes during busy times. If you see a price that looks too good to be true, call the station first or check a second source. Some apps also let you lock in a price for a short window, though this feature varies by region and station.

Key Takeaways

  • GasBuddy, AAA TripTik, and Google Maps all show current gas prices at nearby stations, updated by users or station feeds.
  • Prices can vary by 20 to 50 cents per gallon between stations in the same town, so checking before you drive saves money on every fill-up.
  • Warehouse clubs like Costco and Sam's Club often have the lowest prices but require a membership and may have longer lines during peak hours.
  • Fuel rewards programs tied to grocery stores or credit cards can lower your effective price by 3 to 10 cents per gallon over time.
  • Prices are lowest early in the week and highest on weekends, though this pattern varies by region and global oil markets.

How price-tracking apps work and which ones are most reliable

GasBuddy is the largest crowdsourced gas price network in North America. Users report prices when they pump, and the app displays them on a map with a color code: green for cheap, yellow for average, red for expensive. You can sort by price, distance, or brand. The app is free, but prices depend on how many users have reported recently at each station—rural areas may have stale data.

AAA TripTik works similarly but pulls data from AAA members and partner stations. If you are an AAA member, you get access to member-only discounts at some stations. The app also integrates trip planning, so you can see gas prices along your route before you leave.

Google Maps now shows gas prices directly in search results when you type "gas near me." The data comes from GasBuddy and other sources, so it is reliable in most areas. You do not need to read a separate app, which makes it the fastest option if you already have Google Maps open.

Smaller regional apps exist in some states—California has Waze integration, and some states have local fuel networks. Check your phone's app store for your state name plus "gas prices" to see what is available where you live.

Warehouse clubs and their fuel programs

Costco and Sam's Club consistently rank among the cheapest places to buy gas in the United States. Costco members report prices 15 to 30 cents per gallon lower than nearby commercial stations, and Sam's Club is similar. The catch is membership: Costco costs $60 to $130 per year depending on tier, and Sam's Club costs $50 to $110. If you buy gas once a week, the membership often pays for itself in fuel savings alone.

Both clubs limit how much you can buy per visit (usually 35 gallons) and may have longer lines during evenings and weekends. Costco accepts only Costco credit cards or debit cards at the pump; Sam's Club accepts most major cards. Neither accepts GasBuddy or other third-party discount codes.

If you do not have a membership, ask a member to buy you a gift card—some clubs allow non-members to use gift cards at the pump, though policies vary by location. Call ahead to confirm.

Grocery store and credit card fuel rewards programs

Many supermarket chains offer fuel discounts tied to loyalty programs. Kroger, Safeway, Albertsons, and regional chains let you earn points on grocery purchases and redeem them for 10 to 20 cents off per gallon at their fuel centers. Some programs double or triple points during promotional weeks, which can add up to 30 to 50 cents off per gallon for a single fill-up.

Credit cards with fuel rewards typically offer 3 to 5 percent cash back on gas purchases. Cards like the Chase Freedom Unlimited or American Express Blue Cash pay cash back directly; others like the Costco Anywhere Visa give you rewards points redeemable for Costco fuel. The math works best if you already use the card for other purchases and pay off the balance monthly—interest charges will erase any fuel savings.

Combining a grocery loyalty program with a rewards credit card can lower your effective price by 5 to 10 cents per gallon. Track your rewards balance in the app so you know when you have a discount waiting.

Why prices vary so much between nearby stations

Gas stations set their own prices based on their cost to buy fuel, local competition, and brand markup. A Shell or Chevron station may charge more than an independent station across the street because drivers trust the brand. Stations near highways or in rural areas often charge more because they have fewer competitors. Stations near a competitor's location may drop their price to undercut them.

Wholesale fuel costs change daily based on crude oil prices, refinery capacity, and transportation costs. A station that bought its last load of fuel when prices were high will charge more until it sells through that inventory. This is why prices can jump overnight or stay low for days—it reflects what the station paid, not what it will pay next.

Taxes also vary by state and sometimes by county. California, Washington, and Hawaii have the highest gas taxes, which is why prices there are consistently higher than in Texas or Oklahoma, even when crude oil prices are the same.

Timing your fill-ups to catch lower prices

Gas prices tend to be lowest on Monday and Tuesday and highest on Friday through Sunday. This pattern reflects demand: fewer people drive on weekdays, so stations lower prices to attract customers. On weekends, demand rises and stations raise prices. However, this pattern is not may provide—major price swings from global events or refinery outages can override it.

Within a day, prices are usually lowest in the early morning (before 6 a.m.) and highest in the late afternoon (4 to 6 p.m.). Stations adjust prices multiple times per day, so checking an app before you drive can save you 5 to 15 cents per gallon compared to filling up at random times.

If you see a price you like, fill up then rather than waiting for it to drop further. Gas prices are unpredictable over more than a few days, and the cost of driving around looking for a cheaper station usually exceeds any savings.

What to avoid when searching for cheap gas

Do not drive more than a few miles out of your way to save a few cents per gallon. If a station is 5 miles away and charges 10 cents less per gallon, you will spend more in fuel and time than you save. Use the distance filter in your app to focus on stations within 2 to 3 miles of your location or route.

Avoid stations with very old price reports or no recent activity. If an app shows a price but the last report is from three days ago, call the station or check a second source before driving there. Stale data is common in rural areas and can waste your time.

Do not assume the cheapest station is the best deal. Some very cheap stations may have poor fuel quality, long lines, or payment issues. Stick to recognizable brands or stations with recent positive reviews unless you are desperate.

Frequently Asked Questions

How often do gas prices update in these apps?

GasBuddy and similar apps update when users report prices, which can be every few minutes at busy stations or once a day at quiet ones. Google Maps and AAA TripTik pull from multiple sources and update more frequently, usually within 15 to 30 minutes. During busy times, prices may change faster than the app refreshes, so call the station if the price seems unusually low.

Can I use a GasBuddy discount code at any station?

GasBuddy offers occasional discounts through partner stations and credit card offers, but these are not universal. Check the app to see which stations near you accept GasBuddy discounts that day. Most independent stations and some major brands participate, but Costco, Sam's Club, and some regional chains do not.

Is it worth driving to a cheaper station far away?

Only if the price difference is significant and the station is on your route. A 10-cent difference on a 15-gallon fill-up saves $1.50, which does not cover the extra driving. Focus on stations within 2 to 3 miles of where you are or where you are headed.

Do fuel rewards programs work if I do not spend much on groceries?

They work best if you already shop at that store regularly. If you do not, the time spent tracking points and visiting a specific station may not be worth the savings. A credit card with fuel rewards is simpler if you use it for other purchases anyway.

Why is gas so much more expensive in my state than neighboring states?

State fuel taxes, environmental regulations, and refinery capacity all affect prices. California and Hawaii have the highest taxes and strictest fuel standards, which raises prices. States with more refineries and less regulation, like Texas, have lower prices. You cannot avoid state taxes, but knowing this helps you understand why your local prices are what they are.