Dallas (DAL) to Boston (BOS): On-Time Performance
Data through May 2026
Dallas (DAL) to Boston (BOS) 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, 64% arrived on time, noticeably below the national average of 78%.
- On-time
- 64%
- arrived <15 min late
- Avg delay
- 24 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 0.70
- last 12 months
- Duration
- 3h 39m
- scheduled
- Distance
- 1,554 mi
Monthly on-time trend
Best time to fly from DAL to BOS
Aim for departures around 8 a.m. (94% on-time); avoid 1 p.m. departures (43%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 62% | 27 min |
| Tuesday | 56% | 21 min |
| Wednesday | 68% | 20 min |
| Thursday | 51% | 33 min |
| Friday | 63% | 23 min |
| Saturdaybest | 75% | 16 min |
| Sunday | 64% | 27 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft22%
- Airline operations22%
- National airspace system49%
- Weather7%
Frequently asked questions
- How often are flights from DAL to BOS delayed?
- 36% of DAL–BOS 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 24 minutes.
- What is the best time of day to fly from DAL to BOS?
- Departures around 8 a.m. have the best record (94% on-time), while departures around 1 p.m. have the worst (43%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DAL to BOS?
- The scheduled DAL–BOS flight time averages 3h 39m over 1,554 miles. Actual arrival times vary — flights on this route land 15+ minutes late 36% of the time.
- How often are DAL to BOS flights cancelled?
- 0.7% 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 DAL to BOS?
- Saturday flights have the best record at 75% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 51%.
Explore related pages
More routes from DAL
Based on 302 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.