Delta Air Lines
DL474Seattle to Boston
Delta Air Lines flight DL474 flies from Seattle Tacoma (SEA) to Boston (BOS), 4,006 km. Over August 2025 to July 2026 it usually arrives about 21 minutes late: 70% of 246 flights arrived within 15 minutes of schedule and 2.4% were cancelled (US Department of Transportation data).
On-time record, last 12 months
70%
on time (within 15 min)
19%
more than 30 min late
2.4%
cancelled
+21 min
average arrival vs schedule
Every operation of DL474, August 2025 to July 2026: 246 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as DL474
Other flights from Seattle to Boston
More about Seattle Tacoma (SEA) and Boston (BOS).
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