BWI to PHX flight delays & on-time performance
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport to Phoenix Sky Harbor International Airport · 1,999 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BWI or PHX 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 Phoenix (PHX) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.9% 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 (89% on time); around 3pm did worst (58%).
- Thursday was the most reliable day to fly (81% on time) and Sunday the least (69%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
Which airline is most on time from BWI to PHX?
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 | 77% | 0.9% | 12 min | 5.6% | 1,234 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am89%246 flights
- 7am89%55 flights
- 8am89%63 flights
- 9am84%80 flights
- 10am82%87 flights
- 11am89%19 flights
- 12pm84%55 flights
- 1pm76%29 flights
- 2pm57%30 flights
- 3pm58%74 flights
- 4pm79%103 flights
- 5pm63%63 flights
- 6pm73%75 flights
- 7pm66%76 flights
- 8pm82%33 flights
- 9pm62%137 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%1.1% cancelled
- Tuesday80%0.0% cancelled
- Wednesday76%0.0% cancelled
- Thursday81%0.5% cancelled
- Friday78%1.6% cancelled
- Saturday77%0.0% cancelled
- Sunday69%2.9% 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)42%
- Late-arriving aircraft36%
- Air traffic control & airport congestion20%
- Extreme weather1%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather73%
- Airline (crew, maintenance, cleaning, fueling)18%
- Air traffic control & airport congestion9%
- Security0%
BWI to PHX: common questions
- How often are BWI to PHX flights on time?
- 77% 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 Phoenix cancelled?
- 0.9% of scheduled flights were cancelled (11 of 1,234).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 47 min behind schedule on average, and 5.6% 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: PHX to BWI — 80% 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 → PHX, nonstop flights by US airlines that report to the DOT. How we calculate this.