Summer is ‘high season’ for flight delays. What travelers need to know

The summer travel season is in full swing, often bringing more flight delays and cancellations.

But travelers may be out of luck when it comes to reimbursement for such disruptions, depending on the root cause and specific airline policy, experts said.

“In general, in the U.S., airlines aren’t really obligated to pay you anything, anytime,” said Eric Napoli, chief legal officer at AirHelp, which helps fliers claim compensation for delayed or canceled flights.

Mid-June to the end of August typically marks “high season” for flight disruptions, Napoli said.

“This summer will see more planes in the skies, frequent bad weather and increased use of the nation’s airspace,” according to a Federal Aviation Administration webpage on summer travel.

Bad weather has accounted for 66% of total flight-delay minutes year to date, according to FAA data through July 21. In 2023, the share in that time frame was about 72%.

Such data presumably includes the global IT outage on July 19 that grounded thousands of flights.

“Volume” caused another 15% of delays this year, FAA said.

Summer generally brings a “higher volume of passengers and flights” with school out and “millions of Americans” on vacation, Hayley Berg, lead economist at Hopper, wrote in a recent analysis of travel disruptions.

Indeed, 8 of the 10 busiest travel days of 2024 were in June, July and August, according to FAA data as of Sunday.

There’s generally one overarching duty for airlines relative to compensation for passengers: Carriers owe a refund of the ticket price and fees if they cancel a flight or make a “significant change” in the flight — regardless of the reason, according to the U.S. Department of Transportation.

Consumers are entitled to a refund only if they choose not to accept an alternative option from the airline, like rebooking on a different flight, the DOT said.

This obligation holds even for those who bought nonrefundable tickets.

One key caveat, though: The DOT doesn’t currently define what constitutes a “significant” change. That determination is based on factors like length of delay and flight and particular circumstances, the agency said.

Starting Oct. 28, airlines will have to “promptly” and automatically pay refunds to customers, due to a recently issued Biden administration rule, which also defines a “significant” change as a delay of three hours for domestic flights and six hours for international flights.

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More broadly, airline compensation policies vary for delays and cancellations.

A Transportation Department dashboard outlines major carriers’ promises to customers in the event of cancellations or delays longer than three hours. (Those carriers include: Alaska, Allegiant, American, Delta, Frontier,…