Denver, CO → Washington, DC flight delays
DEN → IAD · all airlines · 291 flights · April 2026 · source: US BTS
This route is delayed
12%of the time, by +55 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
88%
Delayed 3h+
1%
Cancelled
0%
Avg when late
+55m
Best & worst day to fly
Most on-time
Tuesday
delayed 3%
Worst
Friday
delayed 20%
Which airline is most punctual on DEN → IAD?
Uniteddelayed 5%
Southwestdelayed 37%
Frequently asked
How often is the Denver, CO to Washington, DC flight delayed?
About 12% of DEN → IAD flights arrive late (15+ minutes), by an average of 55 minutes when they do, based on 291 flights in April 2026.
Which airline is most punctual on DEN → IAD?
United, delayed 5% of the time — the best of the 2 airlines flying this route.
What is the best day to fly DEN → IAD?
Tuesday is the most on-time (delayed 3%), while Friday is the worst (delayed 20%).
Airport overviews