If it feels like flight delays have been showing up a little too often lately, you’re not imagining things. Flight disruptions have been making headlines throughout the summer, and there isn’t just one thing to blame. A combination of severe weather, extreme heat, air traffic control constraints, and packed airline schedules has been turning disruptions into delays felt across the country.
So, what’s actually going on? And more importantly, what does it mean for your next trip?
How much worse have flight delays actually gotten?
According to aviation analytics company Cirium, North American airlines had an on-time performance rate of 72% in June 2026, down from 79.3% in May. Cirium attributed the decline to airspace restrictions, summer storms, strikes, and elevated passenger demand. And on August 16, 2026 alone, 30,488 flights were delayed around the world, with roughly 9.6K of them being within, into, or out of the United States.
These numbers only tell part of the story. Understanding why flights are getting delayed requires looking at several pressure points across the aviation system.
Reason #1: Summer weather is a flight schedule’s worst enemy
When it comes to delays, weather is always the big one. Federal Aviation Administration (FAA) data shows that weather accounted for 74% of system-impacting delays longer than 15 minutes between June 2017 and May 2023.
Summer can be especially tricky because thunderstorms don’t just affect the airport directly underneath them; they can also close flight paths, reduce how many aircraft controllers can safely move through an area, and force planes onto different routes. And when severe weather hits a major hub like New York, Atlanta, Chicago, or Dallas, the disruption can create a chain reaction across an airline’s network. That’s why the skies outside your airport can look perfectly clear while your flight is still delayed because of “weather.”
Reason #2: Extreme heat can make it harder for planes to take off
Another weather issue more and more travelers are hearing about is heat. Planes need to lift to get into the air, and hotter air is less dense than cooler air. In extreme temperatures, that can reduce both the lift generated by an aircraft’s wings and the thrust produced by its engines. Airlines calculate whether a flight can safely depart using factors including the aircraft’s weight, temperature, airport elevation, and runway length.
When it gets too hot, airlines may have to reduce cargo or fuel, wait until temperatures fall, or, in certain situations, remove passengers from the flight. Airports at higher elevations or in especially hot climates can be particularly vulnerable. Researchers continue to study how increasing temperature extremes could reduce aircraft takeoff capacity, especially during the hottest periods of the day.
Reason #3: There’s an air traffic controller shortage
Weather isn’t the only strain on the system. The U.S. has also been dealing with a longstanding shortage of air traffic controllers. The number of air traffic controllers in the country has declined by about 6% in the last decade, and at the same time, there’s been a 10% increase in the number of flights that rely on the air traffic control system.
This shortage has been caused by a number of factors over the years, such as an increase in government shutdowns and COVID-19. While the FAA has been working to hire and train new controllers, it’s a long process that consists of multiple assessments, medical clearances, and security approvals.
Reason #4: Airlines have less wiggle room when something goes wrong
We all know a delayed flight is annoying. A delayed flight when every other flight to your destination is already full? Even worse.
Airlines have reduced some available capacity due to higher operating and fuel costs, which can leave fewer empty seats to accommodate travelers when cancellations happen. Limited space capacity means airlines can quickly run out of options when bad weather disrupts flights during peak travel periods.
That’s part of why a storm lasting a few hours can potentially affect travelers much longer. When this happens, planes, crews, and passengers all have to be repositioned. And when the next few flights are already full, getting everyone where they need to be becomes a very complicated game of Tetris.
Why can one delayed flight turn into a very long travel day?
Air travel is an interconnected system. Your aircraft was probably somewhere else before arriving at your gate. Your crew may have worked another flight. Your airport is sharing airspace with hundreds of other planes. That means delays can build up throughout the day.
It’s also one reason taking an earlier flight can sometimes work in your favor. The first flight of the morning usually has fewer opportunities to inherit disruptions from flights earlier in the day.
So, what can travelers actually do to prevent delays?
While you can’t control the weather or fix a national air traffic controller shortage, you can give yourself a little more flexibility when disruptions hit.
- Book earlier flights when possible. Delays can accumulate as the day goes on, so earlier departures generally have fewer previous flights to inherit problems from.
- Give connections some breathing room. The shortest possible layover might look great when you’re booking, but it leaves very little room for a delayed first flight.
- Keep an eye on the weather beyond your departure airport. Check your destination and major connecting hubs too. Weather hundreds of miles away can still affect your aircraft or crew.
- Turn on airline notifications. Knowing about a cancellation or delay right when it happens gives you a better chance of finding another flight before the announcement is made in the terminal. With the Faye app, you’ll receive real-time flight alerts, oftentimes before the airline.
- Keep the essentials with you. Medication, chargers, a change of clothes, and anything else you absolutely need shouldn’t be sitting in a checked bag if there’s a chance you’ll unexpectedly spend the night somewhere else.
- Get travel protection. When a flight delay turns into hours at the airport or an unexpected overnight stay, having travel protection can make the disruption a little easier to navigate.
Prepare for the delays you can’t predict
You can’t always see a travel disruption coming, but you can be ready for when one does. With the Faye Forward plan, trip delay coverage can provide up to $3.5K per trip, capped at $250 per day, for covered delays of more than six hours, helping cover expenses like meals, lodging, and local transportation. If a covered delay of more than three hours causes you to miss a scheduled departure, the plan’s missed connection coverage can provide up to $500 in reimbursement.
Faye’s travel protection may also include a $200 fixed travel inconvenience benefit for eligible flight delays, cancellations, and diversions. Unlike trip delay coverage, which reimburses eligible expenses you incur during a covered delay, travel inconvenience provides a fixed benefit when an eligible event occurs. Travel inconvenience coverage isn’t available in all states.
Faye also provides real-time flight alerts and 24/7 assistance when you need help navigating the unexpected.
Because while you can’t control the weather, airline schedules, or what’s happening in the skies, you can take off knowing you’re better prepared for whatever your travel day has in store.
Frequently asked questions about flight delays
Why are so many flights being delayed lately?
There isn’t one single cause. Severe weather, extreme heat, air traffic control staffing constraints, packed flight schedules, and other operational challenges can all contribute to delays. Because airline networks are so interconnected, a disruption in one city can also create delays elsewhere.
What is the most common cause of flight delays?
Weather is one of the biggest causes of flight delays in the U.S. Thunderstorms, high winds, snow, and other severe conditions can affect airports and flight paths, creating disruptions that ripple across the aviation network.
Can extreme heat cause flight delays?
Yes. Hot air is less dense, which can affect an aircraft’s ability to generate lift and engine thrust. During periods of extreme heat, airlines may need to reduce aircraft weight, adjust schedules, or wait for cooler temperatures before departing.
What should I do if my flight is delayed?
Keep an eye on your airline’s app and flight alerts, check alternative flights, and speak with the airline about your rebooking options. It’s also a good idea to keep essentials like medication, chargers, and a change of clothes in your carry-on in case the delay lasts longer than expected.
Can travel protection cover flight delays?
It can, depending on your plan and the reason and length of the delay. For example, Faye’s trip delay coverage can help reimburse eligible expenses like meals, lodging, and local transportation when you experience a covered delay of more than six hours. Always check your plan for specific coverage limits, terms, and exclusions.
