Picture the scene. The turkey is in the oven, the grandchildren are setting the table, and your seat at Thanksgiving dinner sits empty because you are stuck in an airport terminal three states away, watching the departures board flash red.
For millions of Americans flying this holiday season, that is a real possibility. New government figures show a wide gap between the most and least reliable airlines in the country. The airline you book with could decide whether you arrive on time or spend the holidays rebooking flights.
The Numbers Airlines Would Rather You Didn’t See
Analysis by Global Work & Travel of the US Department of Transportation’s latest Air Travel Consumer Report, released on 19 October, reveals how the major carriers performed in August.
Delta came out on top, with 77% of its flights arriving on time. At the bottom of the table sat JetBlue, where only 59.7% of flights arrived on schedule. That means roughly four in every ten JetBlue passengers landed late.
Cancellations tell an even starker story. JetBlue cancelled 6.2% of its flights, the highest rate of any carrier in the report. Allegiant, the best performer, cancelled just 0.4%. Put another way, a JetBlue passenger was about fifteen times more likely to have a flight scrapped than someone flying Allegiant.
| Airline | On-time arrivals | Flights cancelled |
|---|---|---|
| Delta | 77.0% | 2.0% |
| Allegiant | 73.2% | 0.4% |
| Alaska | 72.3% | 1.5% |
| United | 71.7% | 1.6% |
| American | 70.6% | 2.7% |
| Southwest | 69.1% | 0.8% |
| Frontier | 64.4% | 3.0% |
| JetBlue | 59.7% | 6.2% |
Figures cover domestic flights in August 2026. Networks include branded codeshare partners where applicable.
Even the best result deserves a second look. Delta led the country, yet nearly a quarter of its flights still arrived late.
Why a Late Flight Costs More Than You Think
For travelers over 50, a delayed or cancelled flight is rarely a minor inconvenience. It can mean missing a grandchild’s first Christmas, a family wedding, or a cruise that sails without you. Cruise lines do not hold the ship for passengers stuck in Charlotte.
Jurgen Himmelmann, co-founder and CEO of Global Work & Travel, warns that passengers should think carefully about what disruption would mean before they book.
“Before booking, ask yourself what a disrupted journey would mean for the rest of your trip. If you are travelling for Thanksgiving dinner, a wedding or a cruise departure, arriving late could affect much more than your airport transfer.”
He believes the fare should be only one part of the decision. The route, departure time, connection and number of alternative flights that day all matter.
The Last Flight of the Day Trap
Booking the final departure of the evening is a gamble. If it is cancelled, there may be no other option until the following morning. That could mean a night in an airport hotel, or a night on a terminal floor if every room nearby is taken.
Himmelmann advises checking how often your route operates. More scheduled flights give you more chances to be rebooked, although he stresses that a seat is never guaranteed, especially during the busiest travel weeks of the year.
Connections carry their own risks. A 50-minute layover can look manageable on screen, but changing terminals, clearing passport control, or collecting and rechecking bags can turn it into a sprint through the concourse. Miss that connection and the knock-on effects can last for days.
The Hour That Makes the Biggest Difference
One of the most striking findings concerns the time of day. Across the 30 largest US airports, 89.7% of flights scheduled to depart between 6am and 6.59am left on time. Between 8pm and 8.59pm, that figure collapsed to just 52.8%.
In other words, an evening flight was almost a coin toss.
Delays build through the day as one late aircraft pushes back the next. By evening, a single storm or crew shortage earlier in the day can affect flights across the network.
An early departure does come with practical costs. Himmelmann suggests checking whether trains or buses run early enough to reach the airport, and pricing up a taxi or an airport hotel the night before. A 6am flight only helps if you can get to it.
What Smart Travelers Are Doing Now
The most effective protection is time. If your arrival date cannot move, consider flying a day early. That buffer can be the difference between a relaxed arrival and a missed occasion.
Himmelmann also recommends keeping your booking details, accommodation address and onward travel information available offline. Phone batteries die, airport wifi fails, and when a gate agent is handling a queue of stranded passengers, having everything ready can get you rebooked faster.
Before booking your holiday flights, check:
- Whether your flight is the last departure of the day on that route
- How many alternative flights operate if yours is cancelled
- Whether your connection involves a terminal change, passport control or rechecking bags
- How you will reach the airport for an early morning departure
- Whether you can arrive a day before any fixed commitment
A Note of Caution
These figures cover domestic flights in a single month, August, and reflect each airline’s particular routes and operating conditions. They do not predict how any carrier will perform over Thanksgiving or Christmas. A strong August does not guarantee a smooth December, and a poor one does not mean your flight is doomed. What the data does show is how much reliability can vary, and why the cheapest fare is not always the best value.
This analysis and commentary comes from Global Work & Travel, based on the US Department of Transportation’s October 2026 Air Travel Consumer Report.
Amanda O’Brien is the creator and editor of The Boutique Adventurer. She has visited 80 countries and is a member of the British Guild of Travel Writers as well as the IFTWTA. She is passionate about wine had has just completed Level 3 of the WSET. Born in Australia, she lives in London.