BWI to HOU flight delays & on-time performance
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport to William P. Hobby Airport · 1,246 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BWI or HOU right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Baltimore (BWI) to Houston (HOU) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.4% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (93% on time); around 6pm did worst (63%).
- Tuesday was the most reliable day to fly (84% on time) and Thursday the least (70%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (43%).
Which airline is most on time from BWI to HOU?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 76% | 1.4% | 14 min | 6.4% | 1,468 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am93%176 flights
- 7am85%140 flights
- 8am90%51 flights
- 9am89%88 flights
- 10am81%117 flights
- 11am82%56 flights
- 12pm78%92 flights
- 1pm68%44 flights
- 2pm73%47 flights
- 3pm75%48 flights
- 4pm69%39 flights
- 5pm74%95 flights
- 6pm63%209 flights
- 7pm50%44 flights
- 8pm64%101 flights
- 9pm68%117 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday76%1.4% cancelled
- Tuesday84%0.5% cancelled
- Wednesday82%1.0% cancelled
- Thursday70%0.5% cancelled
- Friday76%2.8% cancelled
- Saturday74%0.5% cancelled
- Sunday72%2.6% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)43%
- Late-arriving aircraft36%
- Air traffic control & airport congestion19%
- Extreme weather1%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather65%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)10%
- Security0%
BWI to HOU: common questions
- How often are BWI to HOU flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Baltimore to Houston cancelled?
- 1.4% of scheduled flights were cancelled (20 of 1,468).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 53 min behind schedule on average, and 6.4% of flights were an hour or more late.
- How long is taxi time at BWI?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: HOU to BWI — 75% on time
More flights from Baltimore
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BWI → HOU, nonstop flights by US airlines that report to the DOT. How we calculate this.