Route Reliability
Seattle → Dallas
SEA–DAL · 1,670 miles · Seattle–Tacoma International Airport to Dallas Love Field
- 51%
- Arrive within 15 minutes
- 27 min
- Average arrival delay
- 0%
- Cancelled
- 216
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 51% of the time across 216 flights. No comparison to make.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 51% of the time, against 44% between 3–6 PM.
Friday is doing you no favors.
SEA–DAL flights arrived on time 63% of the time on Saturdays and just 30% on Fridays. That gap is worth planning around.
It basically never cancels.
Out of 216 scheduled flights, only 0.0% were cancelled.
Recent months have been rougher.
SEA–DAL flights arrived on time 44% of the time over the last three months in the data, compared with 57% in the three months before that.
Flights on this route
The breakdown
- Mon55%(29 flights)
- Tue61%(28 flights)
- Wed59%(29 flights)
- Thu43%(30 flights)
- Fri30%(30 flights)
- Sat63%(38 flights)
- Sun40%(30 flights)
- 6–9 AM—(9 flights)
- 9 AM–12 PM48%(25 flights)
- 12–3 PM51%(148 flights)
- 3–6 PM44%(32 flights)
Jun 47% → May 42% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 47% | 30 |
| July 2025 | 39% | 33 |
| August 2025 | 63% | 32 |
| September 2025 | 70% | 30 |
| March 2026 | 44% | 27 |
| April 2026 | 47% | 30 |
| May 2026 | 42% | 31 |
Same trip, other airports
Keep nerding
Based on 216 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.