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Route Reliability

New York → Houston

LGA–IAH · 1,416 miles · LaGuardia Airport to George Bush Intercontinental Airport

71
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
7 min
Average arrival delay
3.2%
Cancelled
4,351
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Spirit Airlines82%333 flights
  2. 2.United Airlines78%2,680 flights
  3. 3.Delta Air Lines74%1,338 flights

What the data says

Morning-you made the right choice.

LGA–IAH flights departing between 3–6 AM arrived on time 97% of the time, versus 62% between 3–6 PM.

Sunday scaries are real for this one.

LGA–IAH flights arrived on time 82% of the time on Saturdays. On Sundays: 72%.

Spirit Airlines runs this route best.

Spirit Airlines arrived on time 82% of the time on this route; Delta Air Lines managed 74%.

Keep a backup plan handy.

This route was cancelled 3.2% of the time. Typical for U.S. flights is around 1–2%.

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
  • Mon76%(631 flights)
  • Tue80%(653 flights)
  • Wed77%(641 flights)
  • Thu75%(630 flights)
  • Fri79%(637 flights)
  • Sat82%(398 flights)
  • Sun72%(608 flights)
On-time by departure window
  • 3–6 AM97%(69 flights)
  • 6–9 AM91%(1111 flights)
  • 9 AM–12 PM79%(786 flights)
  • 12–3 PM78%(949 flights)
  • 3–6 PM62%(689 flights)
  • 6–9 PM63%(594 flights)
On-time trend by month
70%
May

Jun 67% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%349
July 202569%366
August 202582%373
September 202587%368
October 202572%366
November 202576%349
December 202571%335
January 202685%342
February 202686%314
March 202679%333
April 202682%361
May 202670%342

Same trip, other airports

Keep nerding

Based on 4,351 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.