Cheapest 100LL Avgas in New Hampshire
4 FBOs with 100LL pricing · Updated daily
The average 100LL price in New Hampshire is $9.46/gal. Below are all FBOs ranked from cheapest to most expensive.
Prices updated daily · Last updated October 12, 2026
| # | FBO | Airport | Jet-A | 100LL |
|---|---|---|---|---|
| 1 | Port City Air, Inc.Best Price | KPSM | $8.80 | $8.45 |
| 2 | Signature Aviation | KMHT | $9.47 | $8.99 |
| 3 | Concord Aviation Services | KCON | $9.20 | $9.99 |
| 4 | Granite Air Center, LLC | KLEB | $11.50 | $10.40 |
100LL Avgas Market Analysis in New Hampshire
We track 100LL avgas at 4 FBOs across 4 airports in New Hampshire. The cheapest 100LL is $8.45/gal at Port City Air, Inc. (KPSM), and the highest is $10.40/gal — a $1.95/gal difference depending on where you stop. 2 FBOs are below the $9.46/gal state average. For a typical 50-gallon piston top-off, the cheapest stop saves roughly $50 versus the average.
100LL is the standard fuel for most piston-engine aircraft. Because avgas volumes are smaller than Jet-A, prices are especially sensitive to local supplier logistics and airport traffic. Self-serve pumps usually undercut full-service by a wide margin and are often available 24/7. Figures update daily from AirNav reports.