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Route Reliability

Houston → New Orleans

IAH–MSY · 305 miles · George Bush Intercontinental Airport to Louis Armstrong New Orleans International Airport

88
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
4 min
Average arrival delay
0.5%
Cancelled
3,127
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Spirit Airlines84%168 flights
  2. 2.United Airlines83%2,932 flights

Not enough history to rank: Frontier Airlines (27 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning flights do better here.

IAH–MSY flights departing between 6–9 AM arrived on time 93% of the time, versus 75% between 6–9 PM.

Tuesday comes out ahead.

A small edge: 86% on time on Tuesdays against 80% on Sundays.

Not much between Spirit Airlines and United Airlines.

On this route they all land within 83% to 84% on time. Pick on schedule and price.

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
  • Mon83%(462 flights)
  • Tue86%(429 flights)
  • Wed84%(423 flights)
  • Thu82%(445 flights)
  • Fri84%(454 flights)
  • Sat82%(430 flights)
  • Sun80%(464 flights)
On-time by departure window
  • 3–6 AM83%(30 flights)
  • 6–9 AM93%(401 flights)
  • 9 AM–12 PM86%(714 flights)
  • 12–3 PM79%(335 flights)
  • 3–6 PM82%(479 flights)
  • 6–9 PM75%(789 flights)
  • 9 PM–12 AM86%(359 flights)
On-time trend by month
80%
May

Jun 68% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%250
July 202570%267
August 202580%267
September 202592%283
October 202585%287
November 202583%255
December 202587%245
January 202688%242
February 202687%235
March 202686%258
April 202687%272
May 202680%246

Same trip, other airports

Keep nerding

Based on 3,127 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.