Chicago, IL → Boston, MA flight delays
ORD → BOS · all airlines · 641 flights · April 2026 · source: US BTS
This route is delayed
30%of the time, by +66 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
70%
Delayed 3h+
1.4%
Cancelled
2.2%
Avg when late
+66m
Best & worst day to fly
Most on-time
Saturday
delayed 16%
Worst
Thursday
delayed 38%
Which airline is most punctual on ORD → BOS?
JetBluedelayed 10%
Republicdelayed 21%
Deltadelayed 27%
Uniteddelayed 30%
Americandelayed 38%
Frequently asked
How often is the Chicago, IL to Boston, MA flight delayed?
About 30% of ORD → BOS flights arrive late (15+ minutes), by an average of 66 minutes when they do, based on 641 flights in April 2026.
Which airline is most punctual on ORD → BOS?
JetBlue, delayed 10% of the time — the best of the 5 airlines flying this route.
What is the best day to fly ORD → BOS?
Saturday is the most on-time (delayed 16%), while Thursday is the worst (delayed 38%).
Airport overviews