Airport head-to-head
Washington vs St. Louis
Source: US DOT · BTSOn-time = arrival within 15 min
IAD is more on-time — 81% vs 78%.
more on-time
Washington
on-time
- p90 delay
- 35 min
- Gate on-time
- 83%
- On time81%
- 15–59 min11%
- 1–2 hr4%
- 2 hr+3%
58,239 flights
St. Louis
on-time
- p90 delay
- 40 min
- Gate on-time
- 76%
- On time78%
- 15–59 min14%
- 1–2 hr4%
- 2 hr+3%
63,718 flights
Last 12 months · arrivals · on-time means arriving within 15 minutes (BTS standard).