2,624 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 85% on time.

Best time to leave 9–10 am 93% arrive on time from SEA

Best single flight DL 4124 SEA 15:45 → EUG 17:05 · 90% on time Avoid DL 3855 SEA 22:35 → EUG 23:51 · 88% 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.

Airlines on this route

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


Delta (incl. SkyWest)	1,059	90%	0.8%	65 min
Alaska (incl. SkyWest, Horizon)	1,565	82%	1.3%	48 min

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 4124flown by SkyWest	SEA 15:45	EUG 17:05	90%
DL 4149flown by SkyWest	SEA 11:30	EUG 12:59	88%
DL 3855flown by SkyWest	SEA 22:35	EUG 23:51	88%

All 14 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.


AS 2072flown by Horizon	SEA 07:55	EUG 09:07	1h 12m	52	81%	0.0%	31 min
AS 2239flown by Horizon	SEA 08:28	EUG 09:41	1h 13m	24	92%	0.0%	44 min
DL 4149flown by SkyWest	SEA 11:30	EUG 12:59	1h 29m	208	88%	1.0%	72 min
AS 3360flown by SkyWest	SEA 11:37	EUG 13:01	1h 24m	52	83%	0.0%	66 min
AS 2443flown by Horizon	SEA 11:52	EUG 13:08	1h 16m	48	77%	0.0%	30 min
AS 3030flown by SkyWest	SEA 14:08	EUG 15:23	1h 15m	28	89%	0.0%	39 min
AS 3046flown by SkyWest	SEA 15:45	EUG 17:00	1h 15m	15	80%	0.0%	47 min
DL 4124flown by SkyWest	SEA 15:45	EUG 17:05	1h 20m	350	90%	0.6%	47 min
AS 2338flown by Horizon	SEA 15:50	EUG 17:00	1h 10m	37	68%	0.0%	42 min
AS 3199flown by SkyWest	SEA 17:40	EUG 18:58	1h 18m	52	79%	0.0%	97 min
AS 3100flown by SkyWest	SEA 17:53	EUG 19:10	1h 17m	27	67%	0.0%	47 min
DL 3855flown by SkyWest	SEA 22:35	EUG 23:51	1h 16m	360	88%	0.3%	73 min
AS 2047flown by Horizon	SEA 22:49	EUG 23:59	1h 10m	52	90%	0.0%	23 min
AS 2146flown by Horizon	SEA 22:49	EUG 23:59	1h 10m	28	93%	3.6%	34 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	EUG	1h 20m	90%	0.8%	1,059	Flying now
Alaska	SEA	EUG	1h 13m	82%	1.3%	1,565	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