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627 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 am 84% arrive on time from SEA
Best single flight AS 490 SEA 23:13 → MSY 05:49 · 82% on time Avoid AS 568 SEA 09:37 → MSY 16:16 · 81% 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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SEA
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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 622 82% 0.3% 42 min
Delta 5 – 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 490 SEA 23:13 MSY 05:49 82%
AS 568 SEA 09:37 MSY 16:16 81%
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 MSY 4h 39m 82% 0.3% 622 Flying now
Delta SEA MSY – 100%few flights 0.0% 5 Not flying now

Alternatives with one stop

All connections →
UnitedDetails → SEA 05:00 → DEN 08:43UA 2601 1h 07m Denver DEN 09:50 → MSY 13:39UA 2273 6h 39m 98% 87%
UnitedDetails → SEA 23:49 → IAH 06:10UA 2379 1h 20m Houston IAH 07:30 → MSY 08:46 +1UA 491 6h 57m 89% 82%
DeltaDetails → SEA 05:30 → SLC 08:30DL 1128 55m Salt Lake City SLC 09:25 → MSY 13:49DL 2100 6h 19m 93% 81%
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