New Orleans (MSY) to Seattle (SEA) flights
Alaska Airlines flies nonstop from Louis Armstrong New Orleans International Airport to Seattle-Tacoma International Airport, with about 14 flights a week in July 2026. The 2,086-mile flight takes about 5h 12m gate to gate.
- Distance
- 2,086 mi · 3,357 km
- Flight time
- 5h 12m
- Airlines
- 1
- Seats filled
- 83%
Airlines flying MSY to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 14 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 90,092 | 5h 12m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
MSY to SEA flight schedule
2 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 7:10am and the last at 5:19pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 451Alaska Airlines | 7:10am | 10:17am | 17 | 74% |
| AS 569Alaska Airlines | 5:19pm | 8:25pm | 31 | 71% |
Is MSY to SEA on time?
From September 2025 to August 2026, 72% of 619 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 7am were the most punctual (76%), those around 5pm the least (66%). Most delay time was caused by late-arriving aircraft (45%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 614 | 72% | 17 min | 0.8% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 7am to 8am | 272 | 76% | |
| 5pm to 6pm | 178 | 66% | |
| 6pm to 7pm | 164 | 73% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 57 | 7,930 | |
| September 2025 | 47 | 6,723 | |
| October 2025 | 53 | 7,709 | |
| November 2025 | 58 | 8,158 | |
| December 2025 | 54 | 8,112 | |
| January 2026 | 36 | 4,902 | |
| February 2026 | 32 | 4,846 | |
| March 2026 | 43 | 6,195 | |
| April 2026 | 60 | 7,874 | |
| May 2026 | 62 | 9,462 | |
| June 2026 | 59 | 9,316 | |
| July 2026 | 61 | 9,598 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.