Cheapest 100LL Avgas in South Dakota
9 FBOs with 100LL pricing · Updated daily
The average 100LL price in South Dakota is $7.65/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 | Hangar 9 IncBest Price | KABR | $6.50 | $6.90 |
| 2 | ATY Aviation, Inc. | KATY | $7.00 | $7.40 |
| 3 | Wilde Air | KHON | $7.14 | $7.40 |
| 4 | Signature Aviation | KFSD | $7.80 | $7.50 |
| 5 | Maverick Air Center | KFSD | $7.69 | $7.84 |
| 6 | Westjet Air Center | KRAP | $7.99 | $7.89 |
| 7 | Mustang Aviation | KPIR | $8.19 | $7.91 |
| 8 | Aberdeen Flying Service | KABR | $7.75 | $7.95 |
| 9 | Quest Aviation | KABR | $7.75 | $8.10 |
100LL Avgas Market Analysis in South Dakota
We track 100LL avgas at 9 FBOs across 6 airports in South Dakota. The cheapest 100LL is $6.90/gal at Hangar 9 Inc (KABR), and the highest is $8.10/gal — a $1.20/gal difference depending on where you stop. 4 FBOs are below the $7.65/gal state average. For a typical 50-gallon piston top-off, the cheapest stop saves roughly $38 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.