DAL to BOS flight delays & on-time performance
Nonstop flights from Dallas Love Field to Boston Logan International Airport · 1,554 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DAL or BOS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Dallas (DAL) to Boston (BOS) arrived on time 69% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.8% were cancelled, and 11% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8am did best (89% on time); around 12pm did worst (38%).
- Saturday was the most reliable day to fly (74% on time) and Friday the least (61%).
- The largest source of delay minutes was air traffic control & airport congestion (49%).
Which airline is most on time from DAL to BOS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 69% | 0.8% | 19 min | 11.2% | 260 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am75%81 flights
- 8am89%72 flights
- 9am79%19 flights
- 12pm38%21 flights
- 1pm41%45 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday70%0.0% cancelled
- Tuesday64%0.0% cancelled
- Wednesday73%0.0% cancelled
- Thursday70%2.6% cancelled
- Friday61%0.0% cancelled
- Saturday74%2.5% cancelled
- Sunday73%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion49%
- Late-arriving aircraft25%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather9%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Air traffic control & airport congestion50%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
DAL to BOS: common questions
- How often are DAL to BOS flights on time?
- 69% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Dallas to Boston cancelled?
- 0.8% of scheduled flights were cancelled (2 of 260).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 57 min behind schedule on average, and 11.2% of flights were an hour or more late.
- How long is taxi time at DAL?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to DAL — 50% on time
More flights from Dallas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DAL → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.