Baltimore (BWI) to Houston (IAH) flights
United Airlines, Frontier Airlines fly nonstop from Baltimore/Washington International Thurgood Marshall Airport to George Bush Intercontinental Airport, with about 23 flights a week in July 2026. The 1,235-mile flight takes about 3h 20m gate to gate.
- Distance
- 1,235 mi · 1,988 km
- Flight time
- 3h 20m
- Airlines
- 2
- Seats filled
- 82%
Airlines flying BWI to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 17 | Boeing 737-900, Boeing 737 MAX 9, Boeing 737-900ER | 109,262 | 3h 20m |
| Frontier Airlines | 6 | Airbus A321, Airbus A320neo, Airbus A320-100/200 | 25,560 | 3h 30m |
| Spirit AirlinesCeased operations 2026-05-02 | n/a | Airbus A320-100/200, Airbus A321, Airbus A320neo | 53,903 | 3h 16m |
| Mesa AirlinesSeasonal or ended | n/a | Embraer E175 | 4,996 | 3h 14m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BWI to IAH flight schedule
5 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 6:05am and the last at 4:44pm. 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 1898United Airlines | 6:05am | 8:21am | 8 | 93% |
| UA 743United Airlines | 12:55pm | 3:11pm | 6 | 84% |
| UA 2194United Airlines | 1:15pm | 3:37pm | 21 | 90% |
| UA 2095United Airlines | 3:04pm | 5:25pm | 31 | 64% |
| F9 3067Frontier Airlines | 4:44pm | 7:07pm | 31 | 59% |
Is BWI to IAH on time?
From September 2025 to August 2026, 79% of 1,367 flights arrived within 15 minutes of schedule and 2.2% were cancelled. Flights leaving around 6am were the most punctual (93%), those around 5pm the least (58%). Most delay time was caused by air traffic control and airport congestion (35%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 894 | 85% | 11 min | 1.5% |
| Spirit Airlines | 293 | 73% | 28 min | 2.7% |
| Frontier Airlines | 180 | 59% | 38 min | 5% |
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 |
|---|---|---|---|
| 6am to 7am | 265 | 93% | |
| 8am to 9am | 84 | 93% | |
| 11am to 12pm | 55 | 71% | |
| 12pm to 1pm | 228 | 88% | |
| 1pm to 2pm | 57 | 84% | |
| 2pm to 3pm | 38 | 84% | |
| 3pm to 4pm | 143 | 72% | |
| 4pm to 5pm | 114 | 64% | |
| 5pm to 6pm | 102 | 58% | |
| 6pm to 7pm | 91 | 76% | |
| 7pm to 8pm | 64 | 59% | |
| 8pm to 9pm | 68 | 69% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 116 | 16,244 | |
| September 2025 | 123 | 15,642 | |
| October 2025 | 130 | 17,225 | |
| November 2025 | 132 | 17,149 | |
| December 2025 | 105 | 16,642 | |
| January 2026 | 110 | 14,433 | |
| February 2026 | 99 | 13,473 | |
| March 2026 | 109 | 16,362 | |
| April 2026 | 118 | 16,120 | |
| May 2026 | 112 | 16,603 | |
| June 2026 | 101 | 16,957 | |
| July 2026 | 101 | 16,940 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.