Route Explorer
Find the most reliable routes from any major US airport.
Most Delay-Prone US Routes
The ten routes below have the highest share of flights arriving 15 or more minutes late.
| Route | Delay rate | Flights | Worst departure hour |
|---|---|---|---|
| DFW→MCO | 34.6% | 14,398 | 7 PM (47.7%) |
| CLT→SFO | 34.4% | 4,706 | 7 PM (47.2%) |
| DFW→SFO | 34.2% | 11,845 | 8 PM (48.5%) |
| MIA→SEA | 32.0% | 2,630 | 8 PM (38.5%) |
| DFW→LAS | 32.0% | 17,174 | 7 PM (43.8%) |
| LAS→SFO | 31.8% | 17,236 | 6 PM (43.5%) |
| DEN→SFO | 31.0% | 16,291 | 6 PM (50.8%) |
| MIA→LAS | 30.9% | 4,865 | 4 PM (42.7%) |
| MIA→SFO | 30.5% | 4,471 | 8 PM (43.4%) |
| CLT→SEA | 30.4% | 3,739 | 8 PM (53.0%) |
Another angle
Sunday delay rate. Routes ranked by the Sunday delay rate published on each route page.
| Route | Delay rate | Flights |
|---|---|---|
| CLT→SFO | 38.8% | 708 |
| DFW→MCO | 38.4% | 2,144 |
| DFW→SFO | 38.4% | 1,799 |
| BOS→MCO | 36.5% | 2,084 |
| ATL→MIA | 36.1% | 2,854 |
Delayed means a flight arrived 15 or more minutes late. This ranking covers 208 routes with at least 500 flights each, from BTS data for Jan 2023 to Dec 2025. The figures are historical, not live.
Frequently asked questions
Which US route is the most delay-prone?
DFW→MCO has the highest share of flights arriving 15 or more minutes late in this ranking, at 34.6% across 14,398 flights. The figures are historical BTS arrival rates for Jan 2023 to Dec 2025, not a live forecast.
What counts as a delayed flight in this ranking?
A flight counts as delayed when it arrives 15 or more minutes after the scheduled arrival time. The ranking covers 208 routes with at least 500 flights each, from BTS data for Jan 2023 to Dec 2025. These figures are historical, not live.
What is the worst departure hour on the most delay-prone route?
On DFW→MCO, the worst scheduled departure hour in this record is 7 PM, when 47.7% of flights arrived 15 or more minutes late (1,048 flights).
All Route Delay Statistics
Historical delay statistics for 208 hub-to-hub US domestic routes.