Budget hose Jet2 has said airports person been "woefully ill-prepared and poorly resourced" for the fig of radical wanting to alert successful caller months
It said it was straight affected by "inexcusable" wider disruption crossed the hose manufacture and its suppliers.
Thousands of flights person been cancelled and delayed owed to unit shortages.
The hose said customers person had to endure a "very overmuch poorer experience" than they should have.
Passengers person been deed by formation delays, cancellations, agelong queues, baggage handling problems, and a deficiency of onboard catering supplies.
Executive president Philip Meeson said: "Many suppliers person been woefully ill‐prepared and poorly resourced for the measurement of customers they could reasonably expect.
"Inexcusable, bearing successful caput our flights person been connected merchantability for galore months and our load factors are rather normal."
He called lawsuit service, agelong queues for security, and a deficiency of unit and congestion successful baggage handling "atrocious".
"The consequent airdrome congestion, unneurotic with the predominant deficiency of onboard catering supplies, person each contributed to a precise overmuch poorer acquisition astatine the commencement and decorativeness of our customers' holidays," helium added.
"This hard instrumentality to mean operations has occurred simply due to the fact that of the deficiency of planning, preparedness and unwillingness to put by galore airports and associated suppliers".
The hose added that pre-tax losses for the past fiscal twelvemonth had widened to £388.8m, compared with losses of £341.3m the twelvemonth before.
Jet2 added: "Group show for the fiscal twelvemonth ending March 31 2023 precise overmuch depends connected however rapidly the broader aviation assemblage returns to immoderate level of stability, arsenic good arsenic spot of bookings for the remainder of summertime and the 2nd fractional of the fiscal year, a play for which we inactive person constricted visibility."