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Route Reliability

Seattle → New Orleans

SEA–MSY · 2,086 miles · Seattle–Tacoma International Airport to Louis Armstrong New Orleans International Airport

82
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
1 min
Average arrival delay
0.5%
Cancelled
627
Flights in the data

Data through May 2026.

Airlines on this route

  • Alaska Airlines78% on time · 622 flights
  • Delta Air Lines100% on time · 5 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

The 3–6 PM departure wins.

SEA–MSY flights departing between 3–6 PM arrived on time 86% of the time, versus 77% between 9 PM–12 AM.

Skip Saturday if you can.

SEA–MSY flights arrived on time 88% of the time on Tuesdays. On Saturdays: 75%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon81%(89 flights)
  • Tue88%(80 flights)
  • Wed76%(90 flights)
  • Thu75%(91 flights)
  • Fri77%(91 flights)
  • Sat75%(83 flights)
  • Sun78%(96 flights)
On-time by departure window
  • 6–9 AM—(4 flights)
  • 9 AM–12 PM78%(360 flights)
  • 3–6 PM86%(35 flights)
  • 9 PM–12 AM77%(221 flights)
On-time trend by month
84%
May

Jun 60% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%57
July 202561%61
August 202575%57
September 202591%45
October 202587%54
November 202576%59
December 202570%54
January 202678%36
February 202697%32
March 202677%43
April 202693%60
May 202684%62

Keep nerding

Based on 627 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.