WY · free air
Free air in Wyoming
Is air free in Wyoming?
Owner decidesNot by law. Wyoming has no free-air law, so each station owner decides. Of the 75 places with air we have mapped in Wyoming, 35 (47 %) are free or usually free, mostly at Pilot and Flying J, Kum & Go and Lowe's, plus tire shops such as Les Schwab and Discount Tire that fill tires for free.
- places with air
- 75
- free or usually free
- 35
- tire shops fill free
- 16
- open 24/7 (known)
- 9
Chains with air in Wyoming
The brands with the most locations on our Wyoming map, and what to expect at each.
| Chain | Locations in WY | Free air |
|---|---|---|
| Sinclair | 26 | Depends on the store |
| Pilot and Flying J | 14 | Usually free |
| Les Schwab | 13 | Free, staff fill |
| Maverik | 4 | Depends on the store |
| Discount Tire | 3 | Free, staff fill |
| Kum & Go | 2 | Usually free |
| Phillips 66 | 1 | Depends on the store |
| Exxon | 1 | Depends on the store |
| Lowe's | 1 | Usually free |
Free air by city in Wyoming
Number of places with air per city. Cities with a link have their own page with every address.
- Cheyenne13
- Gillette11
- Evanston5
- Rock Springs4
- Rawlins4
- Laramie4
- Casper4
- Greybull2
- Riverton2
- Pinedale2
- Cokeville2
- Jackson1
- North Rock Springs1
- Hoback1
- Yellowstone National Park1
- Mammoth1
- Afton1
- Glendo1
- Mountain View1
- Midwest1
- Wheatland1
- Lusk1
- Kemmerer1
- Beulah1
- Guernsey1
- Boulder1
- Saratoga1
- Cody1
- Green River1
- Worland1
- Sheridan1
Winter tire pressure in Wyoming
−4 PSI
typical drop from July to January
The average temperature in Wyoming goes from about 67 °F in July to 22 °F in January. Tire pressure falls roughly 1 PSI for every 10 °F, so a tire set to 35 PSI on a summer afternoon reads about 31 PSI on an average winter morning.
Most tire pressure warning lights switch on when a tire is about 25 % below its recommended pressure. A cold front plus a slow leak gets there fast, so check your tires as soon as the first cold mornings arrive.
Free air in neighboring states
Free air in Wyoming: questions
Is air free at gas stations in Wyoming?
Only where the owner chooses. Wyoming doesn't require free air, so many stations use coin or card machines that cost one to two dollars. Chains that give air away at most stores are your best bet, and some clerks switch a paid machine to free if you ask.
Which gas stations have free air in Wyoming?
On our map, the chains with the most free or usually free air pumps in Wyoming are Pilot and Flying J (14), Kum & Go (2) and Lowe's (1). At franchised brands like Shell, BP or Exxon, it depends on the owner.
Where can I check my tire pressure for free in Wyoming?
Tire shops are the easiest option: Les Schwab (13 locations) and Discount Tire (3 locations) check and fill tires for free during business hours, no purchase needed.
How much does tire pressure drop in winter in Wyoming?
Wyoming averages about 67 °F in July and 22 °F in January (NOAA, 2015–2024). At roughly 1 PSI per 10 °F, tires filled in summer lose about 4 PSI by midwinter, often enough to switch on the low-pressure warning. Top them up when the weather turns.
Which city in Wyoming has the most free air pumps?
On our map, Cheyenne has the most free or usually free spots in Wyoming: 7 of 13 places with air.