Showing Delta only (incl. its regional partners)All airlines ×

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

Leave before 9 am: 85% depart on time. After 4 pm it’s 3 in 4.

Best time to leave 7–8 am 85% arrive on time from SEA

Best single flight DL 2055 SEA 07:20 → ORD 13:30 · 85% on time Avoid DL 2108 SEA 17:40 → ORD 23:39 · 76% 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).

SEA

% 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.

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.


DL 2055	SEA 07:20	ORD 13:30	85%
DL 2108	SEA 17:40	ORD 23:39	76%

All 3 Delta flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


DL 2055	SEA 07:20	ORD 13:30	4h 10m	299	85%	0.3%	60 min
DL 637	SEA 10:35	ORD 16:45	4h 10m	107	72%	1.9%	53 min
DL 2108	SEA 17:40	ORD 23:39	3h 59m	363	76%	1.4%	95 min

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.


Delta	SEA	ORD	4h 10m	78%	1.2%	907	Flying now

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