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Route on-time record

DFW to BUF: most on-time flights and the best time to fly

Dallas-Fort Worth (Dallas Fort Worth International Airport) to Buffalo (Buffalo Niagara International Airport). 567 nonstop flights in Jun 2025 to May 2026, 58% arrived within 15 minutes and 3.2% were cancelled. The most reliable flight number was American 1724 at 7:21 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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DFW → BUF

Dallas-Fort Worth to Buffalo: 567 nonstop flights a year

On time (12 months)

58%

Cancelled

3.2%

avg delay 33 min

Best time to leave

Noon to 3 PM

68% on time vs 43% 3 to 6 PM

Most reliable airline

American

56% chance on time

Check DFW to BUF fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · American 1724

    7:21 PM → 11:19 PM2h 58m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    64%

    chance on time

    On time (history)
    68%
    Cancelled
    2.0%
    Avg arrival delay
    23 min
    • Arrived on time 68% of the time (192 flights, Jun 2025 to May 2026).
    • Departs outside DFW's trouble window (1 PM to 7 PM, when 52% of its 136 ground stops and delay programs started).
    • 59% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 192 flights

    Find American 1724 fares Opens this date on Aviasales

  2. #2 · American 1615

    11:55 AM → 3:56 PM3h 01m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    60%

    chance on time

    On time (history)
    75%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 75% of the time (8 flights, Jun 2025 to May 2026).
    • Departs outside DFW's trouble window (1 PM to 7 PM, when 52% of its 136 ground stops and delay programs started).

    Limited track record · 8 flights

    Find American 1615 fares Opens this date on Aviasales

  3. #3 · American 574

    6:30 PM → 10:36 PM3h 06m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    53%

    chance on time

    On time (history)
    57%
    Cancelled
    2.7%
    Avg arrival delay
    31 min
    • Arrived on time 57% of the time (146 flights, Jun 2025 to May 2026).
    • Departs inside DFW's trouble window: 52% of its 136 ground stops and delay programs started between 1 PM and 7 PM.
    • 55% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 146 flights

    Find American 574 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines56%

    557 flights · 58% on time as flown · 2.9% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Noon to 3 PM68%

    197 flights · avg delay 24 min

  • 3 to 6 PM43%

    38 flights · avg delay 58 min

  • 6 to 9 PM52%

    321 flights · avg delay 36 min

Best day: Tuesday (71%). Worst: Sunday (54%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
48
F
51
M
56
A
60
M
57
J
50
J
58
A
66
S
78
O
76
N
63
D
51

What delays this route

  • Late-arriving aircraft62%
  • Airline (crew, maintenance, boarding)25%
  • Air traffic control and airport volume10%
  • Severe weather4%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

Finding the most reliable connections from DFW to BUF…

DFW to BUF questions

What time of day is best to fly DFW to BUF?
Noon to 3 PM: 68% of flights arrived on time, against 43% for departures 3 to 6 PM.
Which airline is most on time from DFW to BUF?
American, with a season-adjusted 56% chance of operating and arriving on time over 557 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on DFW to BUF?
January (48% on time); the best was September (78%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

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Live status: FAA delays and ground stops