Route
PHX → BWI
Phoenix Sky Harbor International Airport Baltimore/Washington International Thurgood Marshall Airport
How punctual is this route?
- On-time arrivals
- 78.5%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,220
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 43%
- Air traffic control & airport 13%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.5% | 103 |
| October 2025 | 88.1% | 119 |
| November 2025 | 82.7% | 104 |
| December 2025 | 80.2% | 107 |
| January 2026 | 79.8% | 96 |
| February 2026 | 81.7% | 97 |
| March 2026 | 72.7% | 113 |
| April 2026 | 78.8% | 118 |
| May 2026 | 77.2% | 123 |
| June 2026 | 74.2% | 89 |
| July 2026 | 61.0% | 62 |
| August 2026 | 71.6% | 89 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,220 | 78.5% | 0.9% | 51 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN4058
38% late · 64 flights
-
WN3124
14% late · 58 flights
-
WN3251
7% late · 58 flights
-
WN769
14% late · 58 flights
-
WN2415
39% late · 57 flights
-
WN814
21% late · 53 flights
-
WN2034
15% late · 47 flights
-
WN2974
13% late · 46 flights
-
WN4347
44% late · 36 flights
-
WN4192
15% late · 33 flights
-
WN4194
29% late · 32 flights
-
WN2309
3% late · 31 flights
-
WN2590
3% late · 31 flights
-
WN1800
3% late · 30 flights
-
WN3179
29% late · 28 flights
-
WN1039
35% late · 27 flights
-
WN1899
4% late · 26 flights
-
WN1153
24% late · 25 flights
-
WN1170
8% late · 24 flights
-
WN1497
0% late · 24 flights
-
WN3768
62% late · 24 flights
-
WN1813
55% late · 23 flights
-
WN2811
26% late · 23 flights
-
WN2360
5% late · 21 flights
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