Does Flight Distance Affect How Often You're Delayed?

Not in a straight line. Short flights under 500 miles arrive on time 79.6% of the time, and cross-country flights over 2,000 miles do just as well at 80.0% — but flights in the 500-to-2,000-mile "middle distance" band, the backbone of US domestic travel, are the least reliable, landing on time only 77.5%–78.6% of the time. Figures cover 24 months of US DOT data (June 2024–May 2026) across more than 3,600 routes with meaningful traffic.

Key takeaways

• Short-haul flights (under 500 miles): 79.6% on-time, 16.3-minute average arrival delay
• Medium-haul flights (500–1,000 miles): 78.6% on-time, 16.5-minute average delay
• Long-haul domestic flights (1,000–2,000 miles): 77.5% on-time — the least reliable distance band
• Transcontinental flights (2,000+ miles): 80.0% on-time, 14.1-minute average delay — the most reliable band
• The pattern is a U-shape, not a straight line: reliability dips in the middle distances and recovers at both ends

Is a longer flight more likely to be delayed?

No — and the relationship isn't even close to linear. Grouping over 3,500 US routes with at least 500 flights a year by distance shows on-time performance dipping through the middle of the range and recovering at both the short and long ends:

• Under 500 miles (avg. 310 mi): 79.6% on-time
• 500–1,000 miles (avg. 732 mi): 78.6% on-time
• 1,000–2,000 miles (avg. 1,350 mi): 77.5% on-time
• Over 2,000 miles (avg. 2,438 mi): 80.0% on-time

Average arrival delay follows the same U-shape: 16.3 minutes for short hops, peaking around 16.5 minutes in the middle distances, then dropping to 14.1 minutes for the longest flights.

Why don't the longest flights have the worst delays?

Transcontinental routes tend to be scheduled with more buffer built into the block time, and the aircraft flying them typically complete fewer legs per day — often just one round trip. That leaves less opportunity for a delay earlier in the day to carry into the flight you're on. Airlines also tend to staff their premium long-haul routes with dedicated aircraft and crews, reducing the knock-on effect from a late-arriving plane.

Why do medium and long-haul flights struggle the most?

Routes in the 500-to-2,000-mile range are the workhorses of hub-and-spoke scheduling — the aircraft flying them often complete four to six legs in a single day. A delay on the first flight of the morning has more distance to compound by the time that same airframe reaches your route in the afternoon or evening. This is the same mechanism behind late-arriving aircraft delays, one of the five delay causes airlines report to the DOT.

Should this change how you book a flight?

Distance alone isn't a reliable predictor — the gap between the best and worst distance band is only about 2.5 points, much smaller than the gap between individual routes or airlines. Rather than assuming a longer or shorter flight will run smoother, check the specific route's on-time history before you book.

Frequently asked questions

Are short flights less likely to be delayed?

Not by much. Short-haul flights under 500 miles are on time 79.6% of the time, close to the 80.0% rate for transcontinental flights over 2,000 miles. The flights most likely to run late are in the 1,000-to-2,000-mile range, at 77.5% on-time.

What counts as a long-haul domestic flight?

For this analysis, "long-haul" domestic flights are 1,000 to 2,000 miles — routes like Chicago to Los Angeles or New York to Denver. Anything over 2,000 miles (New York to San Francisco, for example) is transcontinental, and performs better on time, not worse.

Does flight distance matter more than the airline or airport?

No. The spread between the best and worst distance bands is about 2.5 percentage points. The spread between the most and least reliable airports is 14 points, and between airlines it's 12 points — both far more predictive than distance alone.

All figures are computed from US DOT Bureau of Transportation Statistics on-time data — see our methodology. Compare specific routes on our most reliable routes and most delayed routes rankings, or read more about how late-arriving aircraft cause delays to compound through the day.