Baltimore, MD → Boston, MA flight delays
BWI → BOS · all airlines · 324 flights · April 2026 · source: US BTS
This route is delayed
21%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
79%
Delayed 3h+
0.6%
Cancelled
0.3%
Avg when late
+66m
Best & worst day to fly
Most on-time
Tuesday
delayed 2%
Worst
Sunday
delayed 35%
Which airline is most punctual on BWI → BOS?
Republicdelayed 20%
Southwestdelayed 22%
Frequently asked
How often is the Baltimore, MD to Boston, MA flight delayed?
About 21% of BWI → BOS flights arrive late (15+ minutes), by an average of 66 minutes when they do, based on 324 flights in April 2026.
Which airline is most punctual on BWI → BOS?
Republic, delayed 20% of the time — the best of the 2 airlines flying this route.
What is the best day to fly BWI → BOS?
Tuesday is the most on-time (delayed 2%), while Sunday is the worst (delayed 35%).
Airport overviews