DAL to BUF flight delays & on-time performance
Nonstop flights from Dallas Love Field to Buffalo Niagara International Airport · 1,206 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DAL or BUF 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 Buffalo (BUF) arrived on time 81% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 2.7% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Saturday was the most reliable day to fly (79% on time) and Sunday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (55%).
Which airline is most on time from DAL to BUF?
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 | 81% | 2.7% | 12 min | 5.6% | 37 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
Not enough departures across different hours to compare.
Best day of the week
On-time arrival rate by day of departure.
- Monday100%33.3% cancelled
- Tuesday67%0.0% cancelled
- Wednesday100%0.0% cancelled
- Friday100%0.0% cancelled
- Saturday79%0.0% cancelled
- Sunday77%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.
- Late-arriving aircraft55%
- Airline (crew, maintenance, cleaning, fueling)36%
- Air traffic control & airport congestion10%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
DAL to BUF: common questions
- How often are DAL to BUF flights on time?
- 81% 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 Buffalo cancelled?
- 2.7% of scheduled flights were cancelled (1 of 37).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 43 min behind schedule on average, and 5.6% of flights were an hour or more late.
- How long is taxi time at DAL?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BUF to DAL — 47% 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 → BUF, nonstop flights by US airlines that report to the DOT. How we calculate this.