Cheapest 100LL Avgas in New Hampshire
4 FBOs with 100LL pricing · Updated daily
The average 100LL price in New Hampshire is $8.91/gal. Below are all FBOs ranked from cheapest to most expensive.
Prices updated daily · Last updated July 8, 2026
| # | FBO | Airport | Jet-A | 100LL |
|---|---|---|---|---|
| 1 | Port City Air, Inc.Best Price | KPSM | $6.85 | $7.55 |
| 2 | Signature Aviation | KMHT | $7.55 | $8.99 |
| 3 | Granite Air Center, LLC | KLEB | $9.50 | $9.20 |
| 4 | Concord Aviation Services | KCON | $8.30 | $9.90 |
100LL Avgas Market Analysis in New Hampshire
We track 100LL avgas at 4 FBOs across 4 airports in New Hampshire. The cheapest 100LL is $7.55/gal at Port City Air, Inc. (KPSM), and the highest is $9.90/gal — a $2.35/gal difference depending on where you stop. 1 FBO is below the $8.91/gal state average. For a typical 50-gallon piston top-off, the cheapest stop saves roughly $68 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.