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464 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: airlines and hours on this route all land within a few points of 82% on time.

Best time to leave 10–11 pm 91% arrive on time from SEA
Best single flight AS 450 SEA 09:41 → CMH 17:09 · 82% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

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% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.

Alaska 460 82% 0.4% 44 min
Southwest 1 – 0.0% –
United 1 – 0.0% –
American 1 – 0.0% –
Delta 1 – 0.0% –

Dimmed: fewer than 150 flights in the year, too few to rank.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.

AS 450 SEA 09:41 CMH 17:09 82%
All 3 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.

Alaska SEA CMH 4h 30m 82% 0.4% 460 Flying now
Southwest SEA CMH – 100%few flights 0.0% 1 Not flying now
United SEA CMH – 100%few flights 0.0% 1 Not flying now
American SEA CMH – 100%few flights 0.0% 1 Not flying now
Delta SEA CMH – 100%few flights 0.0% 1 Not flying now

Alternatives with one stop

All connections →
UnitedDetails → SEA 05:00 → DEN 08:43UA 2601 52m Denver DEN 09:35 → CMH 14:28UA 480 6h 28m 92% 83%
AmericanDetails → SEA 23:56 → ORD 06:02AA 2881 58m Chicago ORD 07:00 → CMH 09:33 +1AA 4953 · flown by SkyWest 6h 38m 94% 81%
DeltaDetails → SEA 14:30 → DTW 21:48DL 533 1h 02m Detroit DTW 22:50 → CMH 23:56DL 5634 · flown by Republic 6h 26m 87% 78%
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON