Flight number record
AA 1667
American Airlines · Seattle to Dallas-Fort Worth
- Route
- SEA → DFW
- Departs
- 07:31
- Flights
- 339
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 1667, check with American Airlines.
AA 1667 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 2.7 hours. That rests on 339 flights, with a median arrival 13 minutes early.
Set against the rest of the country, AA 1667's record is 11 points better than the US average of 77.3%. That gap is worth roughly 111 fewer late arrivals for every thousand flights.
Key figures
On time
88.4%
Arrivals under 15 minutes late, of 329 completed flights
Avg delay
163 min
Across delayed arrivals only, not all flights
Cancelled
1.77%
National rate is 1.89%
1 hour+ late
3.6%
National rate is 8.3%
These figures cover 339 flights between September 2025 and August 2026. The median arrival is 13 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When AA 1667 flies
AA 1667 flies SEA to DFW without a single fixed slot. Its most common scheduled departure was 07:31, used on 42 of 339 flights, with 07:35 (37 flights) and 07:26 (34 flights) next.
- Departs 07:3142 flights12.4%
- Departs 07:3537 flights10.9%
- Departs 07:2634 flights10.0%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:31 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AA 1667 runs level with that at 88.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
AA 1667 next to SEA to DFW
Every carrier on SEA to DFW combined arrived on time 78.0% of the time across 5,228 flights, so AA 1667 is 10 points ahead of it. American flew 2,736 flights on the same city pair under all its flight numbers, including this one, and those ran 76.6% on time. Across its whole network American Airlines managed 74.7%, which this flight beats by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 1667thin sample | 339 | 88.4% | 163 min | 1.77% | A |
| All American Airlines on SEA–DFW | 2,736 | 76.6% | 94 min | 2.23% | B |
| All carriers on SEA–DFW | 5,228 | 78.0% | 75 min | 1.66% | B |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 1667 quarter by quarter
AA 1667 did not run the same all year. Its best quarter was Oct–Dec 2025 at 91.0% on time and its weakest Jul–Sep 2026 at 75.8%, a swing of 15 points on roughly 85 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202529 flights—
- Oct–Dec 202591 flights91.0%
- Jan–Mar 202668 flights88.9%
- Apr–Jun 202689 flights90.8%
- Jul–Sep 202662 flights75.8%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, AA 1667 did best on Friday at 95.5% on time and worst on Saturday at 79.6%. Each day rests on about 48 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AA 1667 runs when it is late
AA 1667 often beats the schedule: 158 of 329 completed flights, 48%, arrived 15 minutes or more early. The 38 late arrivals split 17 under half an hour, 9 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early158 flights48.0%
- Within 15 min133 flights40.4%
- 15–29 min late17 flights5.2%
- 30–59 min late9 flights2.7%
- 1–2 hours late4 flights1.2%
- 2+ hours late8 flights2.4%
Scale runs 0% to 100%.
Share of 329 completed flights by arrival against schedule.
8 of 36 late departures made up the time and arrived on time, 22% of them. 10 flights left on time and still arrived late.
The worst days
Worst days for AA 1667
The latest arrival of the period was on 31 July 2026, 28 hours 51 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 31 July 2026 | 28 hours 51 minutes | Carrier |
| 29 April 2026 | 14 hours 19 minutes | Late-arriving aircraft |
| 4 May 2026 | 9 hours 33 minutes | Carrier |
| 17 August 2026 | 9 hours 15 minutes | Carrier |
| 14 January 2026 | 8 hours 27 minutes | Carrier |
Delay causes
Why AA 1667 runs late
Carrier accounts for 75% of the 6,182 delay minutes carriers reported here, and the remaining four split what is left.
- 75%Carrier
- 15%Late-arriving aircraft
- 9%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 75%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,637 of the 6,182 delay minutes reported here. The split is drawn from 6,182 delay minutes reported on AA 1667.
Cancellations sit at 1.77% against a national 1.89%, which is ordinary. Diversions add another 1.18%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.6% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 1,660 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
Every one of the 339 flights under AA 1667 in the data flew SEA to DFW. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 339 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking AA 1667
For a booking, read AA 1667 as 88.4% on time with 1.77% cancelled over 339 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SEA to DFW, every carrier and departure
- DFW to SEA, the return direction
- American Airlines 2748 on the same route94.0%
- Delta Air Lines 870 on the same route74.0%
- American Airlines 767 on the same route67.6%
- American Airlines 707 on the same route76.8%
- Alaska Airlines 414 on the same route90.9%
- Alaska Airlines 424 on the same route78.9%
- Seattle-Tacoma International (SEA) delay statistics
- Dallas/Fort Worth International (DFW) delay statistics
- American Airlines on-time record
- Every American Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means American Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.