Piston aviation fuel prices rose across the United States in June 2026, while Jet A prices experienced a national decline, according to iFlightplanner.com officials.
Piston and Alternative Fuels Increase
National 100LL Self Service pricing increased 1.4% to average $6.42 per gallon, offering pilots an approximate 14% savings where self-serve options are available. Conversely, 100LL Full Service fell slightly by 0.3% to average $7.47 nationally. Alternative piston fuels also saw upward movement; UL94 Self Service rose 1.6% to average $7.41, and Mogas climbed 2.3% to average $5.48. According to company officials, both alternative fuels continue to show limited and highly regional availability nationwide.
Jet A Averages Decline
In contrast to piston fuels, Jet A prices dropped across all Lower-48 regions. National Jet A Full Service averaged $7.63 in June 2026, representing a 5.4% decrease. Excluding Alaska and Hawaii, Lower-48 Jet A Full Service averaged $7.54. The Great Lakes region recorded the largest absolute percent change month over month, with Jet A Full Service dropping 6.3% to average $7.03.
Regional 100LL Highlights
- Central: 100LL Self Service led regional increases, climbing 3.2% to average $6.14. Jet A Full Service in this region dropped 4.1% to $6.84.
- Great Lakes: 100LL Self Service rose 2.7% to $6.17, while 100LL Full Service increased 0.5% to $7.11.
- Southwest: 100LL Self Service increased 1.0% to $6.04, whereas 100LL Full Service declined 0.9% to $7.19.
- Northwest Mountain: 100LL Self Service increased 0.9% to $6.81, while 100LL Full Service showed no measurable change at $7.58.
Six-Month Price Trends
Over the past six months, national aviation fuel prices have remained elevated following a sharp increase during the spring. National 100LL Full Service rose 17.3% from $6.37 in January 2026 to $7.47 in June 2026. National Jet A Full Service increased 21.1% from $6.30 to $7.63 over the same period. Both fuel types moved sharply higher beginning in March 2026 amid developments in the Middle East, peaking in May 2026 before easing in June 2026.
Data Background
This report summarizes U.S. aviation fuel price trends for June 2026, based on pricing data collected directly by iFlightPlanner from 3,349 FBOs and fuel service providers across the United States. All prices reflect reported retail prices at the time of confirmation. The average age of all reported prices is 8.5 days.
This data is distributed to aviation organizations and platforms, including the Aircraft Owners and Pilots Association (AOPA), AeroQuote, Hamilton AI, SkyVector, PilotGPT, SurfOS, CharterHub, and more.
For more information: iFlightPlanner.com/api/BusinessData
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