Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
WN 4478 · Dallas (DAL) → New York (LGA)
Sold by Southwest. Still flying: 55 of the last 56 days (Daily).
Arrives on time32%within 15 minutes, of 56 flights
Cancelled5.4%of scheduled flights
An hour or more late14%of flights that operated
When late, on average56 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (New York is 1 h ahead of Dallas).
- Leaves DAL
- 12:20
- Arrives LGA
- 16:45
- Flight time
- 3h 25m
- Days flown, last 8 weeks
- 55 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at DAL
All flights leaving Dallas (DAL) at 12–1 pm, wherever they’re going: 73% left within 15 minutes and 1.5% were cancelled (4,479 flights in the year). Other Southwest flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.