DL1015Washington to Seattle
Delta Air Lines flight DL1015 flies from Washington Dulles (IAD) to Seattle Tacoma (SEA), 3,702 km. Over August 2025 to July 2026 it usually arrives about 13 minutes late: 76% of 365 flights arrived within 15 minutes of schedule and 1.1% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of DL1015, August 2025 to July 2026: 365 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as DL1015
Other flights from Washington to Seattle
More about Washington Dulles (IAD) and Seattle Tacoma (SEA).
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