Boston (BOS) to Dallas (DAL): On-Time Performance
Data through May 2026
Boston (BOS) to Dallas (DAL) is a thinner route than most in this dataset — 257 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 58% arrived on time, noticeably below the national average of 78%.
- On-time
- 58%
- arrived <15 min late
- Avg delay
- 27 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.70
- last 12 months
- Duration
- 4h 8m
- scheduled
- Distance
- 1,554 mi
Monthly on-time trend
Best time to fly from BOS to DAL
Aim for departures around 10 a.m. (97% on-time); avoid 5 p.m. departures (34%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 56% | 22 min |
| Tuesday | 41% | 43 min |
| Wednesday | 32% | 36 min |
| Thursday | 53% | 38 min |
| Fridaybest | 67% | 19 min |
| Saturday | 65% | 19 min |
| Sunday | 66% | 25 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft57%
- Airline operations21%
- National airspace system19%
- Weather3%
Frequently asked questions
- How often are flights from BOS to DAL delayed?
- 42% of BOS–DAL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 27 minutes.
- What is the best time of day to fly from BOS to DAL?
- Departures around 10 a.m. have the best record (97% on-time), while departures around 5 p.m. have the worst (34%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BOS to DAL?
- The scheduled BOS–DAL flight time averages 4h 8m over 1,554 miles. Actual arrival times vary — flights on this route land 15+ minutes late 42% of the time.
- How often are BOS to DAL flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for BOS to DAL?
- Friday flights have the best record at 67% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 53%.
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Based on 302 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.