HOU to BWI flight delays & on-time performance
Nonstop flights from William P. Hobby Airport to Baltimore/Washington International Thurgood Marshall Airport · 1,246 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at HOU or BWI right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (HOU) to Baltimore (BWI) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.4% were cancelled, and 5% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (95% on time); around 7pm did worst (49%).
- Tuesday was the most reliable day to fly (79% on time) and Monday the least (67%).
- The largest source of delay minutes was late-arriving aircraft (44%).
Which airline is most on time from HOU to BWI?
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 | 75% | 1.4% | 14 min | 5.3% | 1,479 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am92%250 flights
- 6am95%106 flights
- 7am85%41 flights
- 8am94%48 flights
- 9am78%46 flights
- 10am85%102 flights
- 11am85%126 flights
- 12pm71%21 flights
- 2pm82%18 flights
- 3pm66%153 flights
- 4pm56%60 flights
- 5pm66%159 flights
- 6pm67%80 flights
- 7pm49%79 flights
- 8pm50%145 flights
- 9pm55%32 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday67%2.9% cancelled
- Tuesday79%0.0% cancelled
- Wednesday79%0.5% cancelled
- Thursday74%0.5% cancelled
- Friday74%2.3% cancelled
- Saturday78%1.4% cancelled
- Sunday72%2.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft44%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion18%
- Extreme weather4%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather81%
- Airline (crew, maintenance, cleaning, fueling)10%
- Air traffic control & airport congestion10%
- Security0%
HOU to BWI: common questions
- How often are HOU to BWI flights on time?
- 75% 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 Houston to Baltimore cancelled?
- 1.4% of scheduled flights were cancelled (21 of 1,479).
- 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 47 min behind schedule on average, and 5.3% of flights were an hour or more late.
- How long is taxi time at HOU?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BWI to HOU — 76% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: HOU → BWI, nonstop flights by US airlines that report to the DOT. How we calculate this.