Airline flight prices increased in 2022 and 2023. The pricing appears to be unsustainable as business travel has declined. Leisure travel remained strong in 2022 and through summer 2023, but this demand is unsustainable. Prices for travel in the US and to Europe are expected to fall in September and bottom out by early October, says this report in WSJ. Overall prices are expected to come down to 2019 levels as travel comes down to normal levels after pent up demand from the pandemic is released.