CMH → SEA: cancellations & delays
Over Jan 2023 - Apr 2026, 1.1% of John Glenn Columbus International Airport (CMH) to Seattle–Tacoma International Airport (SEA) flights were cancelled and 21.7% arrived at least 15 minutes late, across 1,494 flights, flown by AS, AA, DL, UA, WN. Cancellations peak in January.
Check today's live CMH departures →Airport pages: John Glenn Columbus International Airport (CMH) · Seattle–Tacoma International Airport (SEA)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.