Historical on-time performance
Baltimore to Manchester NH
377 miData through May 2026Source: US DOT · BTS
Flights on BWI–MHT arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 1,710 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time81%Medianon timep9030 minCancel1.2%Flights1,710
Why flights run late
Delay causes
- Airline32%
- Weather2%
- Air traffic (NAS)7%
- Late aircraft58%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline5%
- Weather70%
- Air traffic (NAS)25%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 20 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BWI → MHT
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 92% on time.
- Mornings92% on time · p90 10 min · 914 flights
- Middays86% on time · p90 20 min · 1,267 flights
- Afternoons74% on time · p90 40 min · 951 flights
- Evenings67% on time · p90 50 min · 590 flights
- Overnights63% on time · p90 55 min · 1,163 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 83% on time.
- Tuesdays83% on time · p90 25 min · 695 flights
- Wednesdays82% on time · p90 25 min · 695 flights
- Thursdays78% on time · p90 30 min · 751 flights
- Saturdays77% on time · p90 35 min · 582 flights
- Mondays77% on time · p90 35 min · 757 flights
- Fridays74% on time · p90 40 min · 759 flights
- Sundays68% on time · p90 50 min · 646 flights
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