Denver, CO → Boston, MA flight delays
DEN → BOS · all airlines · 323 flights · May 2026 · source: US BTS
This route is delayed
24%of the time, by +56 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
76%
Delayed 3h+
0.9%
Cancelled
0.3%
Avg when late
+56m
Best & worst day to fly
Most on-time
Friday
delayed 15%
Worst
Monday
delayed 32%
Which airline is most punctual on DEN → BOS?
Uniteddelayed 15%
Deltadelayed 20%
JetBluedelayed 23%
Southwestdelayed 53%
Frequently asked
How often is the Denver, CO to Boston, MA flight delayed?
About 24% of DEN → BOS flights arrive late (15+ minutes), by an average of 56 minutes when they do, based on 323 flights in May 2026.
Which airline is most punctual on DEN → BOS?
United, delayed 15% of the time — the best of the 4 airlines flying this route.
What is the best day to fly DEN → BOS?
Friday is the most on-time (delayed 15%), while Monday is the worst (delayed 32%).
Airport overviews