Gas prices are at their highest level in four years as record numbers of people are traveling for the Memorial Day weekend, and western Pennsylvania has the most expensive gasoline in the state.
The average price of gas in Pennsylvania on May 21 was nine cents higher than the national average. Pennsylvania’s average cost of gas was $4.64, while AAA reported a national average of $4.55.
Prices were even higher in Pittsburgh and other western areas of the state. The Steel City saw a slight drop of a few cents from last week, but prices could rise as 45 million people travel for the holidays, up from 44.8 million last year. Plus, AAA says 87% of them, or 39.1 million people, are driving, up from 39 million in 2025.
Take a look at fuel prices in Pittsburgh and surrounding areas for the Memorial Day holiday.
Gas prices are at their highest in four years, according to AAA report
The national average for a gallon of regular is $4.56, which is 3 cents more than last week and $1.38 more than last year. According to the AAA report, current prices are close to what drivers paid four years ago, when the national average was $4.61 on Memorial Day.
Due to increased gasoline demand and the prolonged closure of the Strait of Hormuz, AAA says pump prices are likely to remain high as the summer travel season begins, according to the Energy Information Administration.
How much is gas in Pennsylvania?
State averages for gas in Pennsylvania on May 21 are as follows:
- Regular: $4.637, down from $4.645 on May 20 and $4.649 a week ago
- Mid-range: $5.062, down from $5.067 on May 20 and $5.071 a week ago
- Premium: $5.449, down from $5.458 on May 20, up from $5.447 a week ago
- Diesel: $5.922, down from $5.926 on May 20 and $5.949 a week ago
What is the average price of gas in Pittsburgh, Western PA?
On May 21, Pittsburgh’s average cost of regular gas was $4.82, down from $4.83 on May 20 and $4.88 last week. Mid-grade came in at $5.25, premium was $5.69 and diesel was $6.01.
Allegheny’s average cost of regular gas on May 21 was a little more than $4.85.
Here is the average cost of gas in other western Pennsylvania counties as of May 21:
- Armstrong: $4.89
- Beaver: $4.85
- Bedford: $4.57
- Blair: $4.57
- Butler: $4.83
- Cambria: $4.63
- Cameroon: $4.69
- Clarion: $4.67
- Clearfield: $4.63
- Crawford: $4.74
- Erie: $4.66
- Elk: $4.87
- Fayette: $4.82
- Forest: $4.87
- Green: $4.87
- Indiana: $4.77
- Jefferson: $4.58
- Lawrence: $4.85
- Mercer: $4.70
- Macken: $4.74
- Somerset: $4.79
- Venango: $4.87
- Warren: $4.69
- Washington: $4.77
- Westmoreland: $4.73
Reporting by Finch Walker and Chad Murphy, USA TODAY Network.