Excuse me?
Fuel prices in the US have plummeted because of fracking. (Hence the need for Democrats to eliminate fracking. A bubbling economy is bad for Democrats.) However, the same is not true for Europe. The price of fuel is effected not only by supply, but by taxes and fees.
Here is a sample. (I am sure jet fuel is also affected the same way.)
http://www.europenroad.com/fuel/
https://www.statista.com/statistics/591285/aviation-industry-fuel-cost/
The statistic shows the fuel costs of airlines worldwide from 2011 to 2019, as a percentage of expenses. The aviation industry has benefited from the decline of oil and jet fuel prices, with global airlines’ fuel costs in 2019 estimated to account for 23.5 percent of their expenditure.