Cheapest 100LL Avgas in South Dakota
9 FBOs with 100LL pricing · Updated daily
The average 100LL price in South Dakota is $7.41/gal. Below are all FBOs ranked from cheapest to most expensive.
Prices updated daily · Last updated June 14, 2026
| # | FBO | Airport | Jet-A | 100LL |
|---|---|---|---|---|
| 1 | Hangar 9 IncBest Price | KABR | $5.50 | $6.75 |
| 2 | Signature Aviation | KFSD | $6.19 | $7.25 |
| 3 | Westjet Air Center | KRAP | $7.39 | $7.25 |
| 4 | Mustang Aviation | KPIR | $7.09 | $7.34 |
| 5 | Aberdeen Flying Service | KABR | $6.90 | $7.40 |
| 6 | ATY Aviation, Inc. | KATY | $7.00 | $7.40 |
| 7 | Wilde Air | KHON | $6.85 | $7.40 |
| 8 | Quest Aviation | KABR | $6.76 | $7.96 |
| 9 | Maverick Air Center | KFSD | $6.94 | $7.97 |
100LL Avgas Market Analysis in South Dakota
We track 100LL avgas at 9 FBOs across 6 airports in South Dakota. The cheapest 100LL is $6.75/gal at Hangar 9 Inc (KABR), and the highest is $7.97/gal — a $1.22/gal difference depending on where you stop. 7 FBOs are below the $7.41/gal state average. For a typical 50-gallon piston top-off, the cheapest stop saves roughly $33 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.