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WanderNerd

Route Reliability

Houston → Santa Ana

IAHSNA · 1,346 miles · George Bush Intercontinental Airport to John Wayne Airport

90
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
4 min early
Average arrival delay
0.2%
Cancelled
1,094
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 88% of the time across 1,094 flights. No comparison to make.

What the data says

Morning-you made the right choice.

IAH–SNA flights departing between 9 AM–12 PM arrived on time 93% of the time, versus 84% between 12–3 PM.

Sunday scaries are real for this one.

IAH–SNA flights arrived on time 97% of the time on Tuesdays and just 80% on Sundays. That gap is worth planning around.

It basically never cancels.

Out of 1,094 scheduled flights, only 0.2% were cancelled.

Slipping a little lately.

IAH–SNA flights arrived on time 88% of the time over the last three months in the data, compared with 94% in the three months before that.

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
  • Mon88%(153 flights)
  • Tue97%(155 flights)
  • Wed91%(153 flights)
  • Thu83%(153 flights)
  • Fri88%(153 flights)
  • Sat87%(154 flights)
  • Sun80%(158 flights)
On-time by departure window
  • 6–9 AM(1 flights)
  • 9 AM–12 PM93%(414 flights)
  • 12–3 PM84%(309 flights)
  • 6–9 PM85%(355 flights)
On-time trend by month
83%
May

Jun 79% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%86
July 202580%90
August 202584%89
September 202588%90
October 202587%92
November 202585%87
December 202597%93
January 202693%93
February 202694%84
March 202693%93
April 202690%90
May 202683%92

Based on 1,094 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.