Delta Air Lines
DL1731Denver to Seattle
Delta Air Lines flight DL1731 flies from Denver (DEN) to Seattle Tacoma (SEA), 1,645 km. Over August 2025 to July 2026 it usually arrives about 3 minutes early: 89% of 364 flights arrived within 15 minutes of schedule and 1.4% were cancelled (US Department of Transportation data).
On-time record, last 12 months
89%
on time (within 15 min)
4%
more than 30 min late
1.4%
cancelled
-3 min
average arrival vs schedule
Every operation of DL1731, August 2025 to July 2026: 364 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as DL1731
- Denver (DEN) to Seattle Tacoma (SEA)364 flights
Other flights from Denver to Seattle
More about Denver (DEN) and Seattle Tacoma (SEA).
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