Fuel Prices at KHYI
San Marcos Regional Airport · San Marcos,
Best Jet-A
$7.45
Berry Aviation Inc
Best 100LL
$8.56
Berry Aviation Inc
FBOs at KHYI
3
Fixed Base Operators
All FBOs at KHYI
Prices updated daily · Last updated June 14, 2026
| # | FBO | Jet-A | 100LL |
|---|---|---|---|
| 1 | Berry Aviation IncBest Price | $7.45 | $8.56 |
| — | Specialized Aero LLC | N/A | N/A |
| — | Texas Aviation Partners, LLC | N/A | N/A |
Jet-A Price History at KHYI
▼ −$0.71May 20Jun 14
Over the past 26 days, the cheapest Jet-A at KHYI has fallen by $0.71/gal (8.7%), moving from $8.16 to $7.45. Over that window it ranged between $7.45 and $8.16 — a $0.71/gal swing.
100LL Price History at KHYI
▲ +$0.41May 20Jun 14
Over the past 26 days, the cheapest 100LL at KHYI has risen by $0.41/gal (5.0%), moving from $8.15 to $8.56. Over that window it ranged between $8.15 and $8.65 — a $0.50/gal swing.
About San Marcos Regional Airport
San Marcos Regional Airport (KHYI) is located in San Marcos, . There are 3 Fixed Base Operators at this airport offering fuel and services. The current best Jet-A price is $7.45/gallon at Berry Aviation Inc.Prices are updated daily and may vary.
KHYI Fuel Price FAQ
How much does Jet-A fuel cost at KHYI?
The cheapest Jet-A at San Marcos Regional Airport (KHYI) is $7.45/gal at Berry Aviation Inc. 1 FBO reports Jet-A here. Last updated June 14, 2026.
How much does 100LL avgas cost at KHYI?
The cheapest 100LL at San Marcos Regional Airport (KHYI) is $8.56/gal at Berry Aviation Inc. Last updated June 14, 2026.
How many FBOs are at KHYI?
San Marcos Regional Airport (KHYI) in San Marcos, has 3 FBOs listed, 1 of which currently report fuel prices.
Are fuel prices at KHYI going up or down?
Over the past 26 days the cheapest Jet-A at KHYI has fallen 8.7% to $7.45/gal (ranging $7.45–$8.16).
How often are KHYI fuel prices updated?
Fuel prices at KHYI are refreshed daily from AirNav FBO reports. The latest update was June 14, 2026. Always confirm with the FBO before fueling, as posted prices can change.