Houston (IAH) to New Orleans (MSY) flights
United Airlines, Mesa Airlines fly nonstop from George Bush Intercontinental Airport to Louis Armstrong New Orleans International Airport, with about 54 flights a week in July 2026. The 305-mile flight takes about 1h 10m gate to gate.
- Distance
- 305 mi · 491 km
- Flight time
- 1h 10m
- Airlines
- 2
- Seats filled
- 69%
Airlines flying IAH to MSY
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 48 | Boeing 737-900, Airbus A319, Airbus A320-100/200 | 302,127 | 1h 10m |
| Mesa Airlines | 6 | Embraer E175 | 8,840 | 1h 11m |
| Spirit AirlinesCeased operations 2026-05-02 | n/a | Airbus A320-100/200, Airbus A320neo, Airbus A321 | 13,568 | 1h 4m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A320neo, Airbus A321 | 2,194 | 1h 17m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAH to MSY flight schedule
12 flight numbers flew this route in August 2026, 6 of them almost daily. The first usually leaves at 7:30am and the last at 10:15pm. 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) |
|---|---|---|---|---|
| UA 491United Airlines | 7:30am | 8:46am | 30 | 92% |
| UA 575United Airlines | 9:50am | 11:06am | 30 | 81% |
| UA 2385United Airlines | 11:55am | 1:13pm | 31 | 87% |
| UA 2738United Airlines | 2:55pm | 4:13pm | 18 | 89% |
| UA 1493United Airlines | 3:08pm | 4:27pm | 8 | 75% |
| UA 5222United Airlines · operated by SkyWest Airlines | 4:29pm | 5:50pm | 17 | 82% |
| UA 6173United Airlines · operated by Mesa Airlines | 4:40pm | 5:59pm | 9 | 76% |
| UA 2140United Airlines | 6:45pm | 8:03pm | 31 | 77% |
| UA 1696United Airlines | 8:30pm | 9:49pm | 10 | 80% |
| UA 2161United Airlines | 8:35pm | 9:57pm | 21 | 81% |
| UA 5225United Airlines · operated by SkyWest Airlines | 9:30pm | 10:45pm | 21 | 62% |
| UA 2474United Airlines | 10:15pm | 11:26pm | 10 | 85% |
Is IAH to MSY on time?
From September 2025 to August 2026, 84% of 3,043 flights arrived within 15 minutes of schedule and 0.1% were cancelled. Flights leaving around 7am were the most punctual (92%), those around 6pm the least (77%). Most delay time was caused by late-arriving aircraft (42%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 2,913 | 84% | 11 min | 0.1% |
| Spirit Airlines | 103 | 87% | 9 min | 0% |
| Frontier Airlines | 27 | 77% | 46 min | 3.7% |
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 | 348 | 92% | |
| 9am to 10am | 369 | 84% | |
| 11am to 12pm | 342 | 87% | |
| 2pm to 3pm | 229 | 85% | |
| 3pm to 4pm | 146 | 79% | |
| 4pm to 5pm | 370 | 85% | |
| 6pm to 7pm | 383 | 77% | |
| 8pm to 9pm | 367 | 79% | |
| 9pm to 10pm | 104 | 79% | |
| 10pm to 11pm | 247 | 85% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 268 | 24,397 | |
| September 2025 | 283 | 28,111 | |
| October 2025 | 287 | 33,023 | |
| November 2025 | 256 | 26,427 | |
| December 2025 | 247 | 26,958 | |
| January 2026 | 242 | 22,545 | |
| February 2026 | 235 | 24,471 | |
| March 2026 | 260 | 26,802 | |
| April 2026 | 273 | 29,778 | |
| May 2026 | 249 | 27,074 | |
| June 2026 | 238 | 28,771 | |
| July 2026 | 238 | 29,561 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.