Route
BWI → AUS
Baltimore/Washington International Thurgood Marshall Airport Austin Bergstrom International Airport
How punctual is this route?
- On-time arrivals
- 77.0%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,254
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 42%
- Late-arriving aircraft 37%
- Air traffic control & airport 18%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.0% | 107 |
| October 2025 | 80.7% | 120 |
| November 2025 | 82.9% | 105 |
| December 2025 | 66.0% | 106 |
| January 2026 | 85.1% | 93 |
| February 2026 | 88.9% | 83 |
| March 2026 | 81.7% | 97 |
| April 2026 | 75.9% | 112 |
| May 2026 | 69.7% | 119 |
| June 2026 | 66.0% | 104 |
| July 2026 | 69.9% | 106 |
| August 2026 | 75.5% | 102 |
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 | 1,254 | 77.0% | 1.7% | 54 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN344
37% late · 63 flights
-
WN1040
55% late · 58 flights
-
WN1943
5% late · 58 flights
-
WN4373
11% late · 58 flights
-
WN827
11% late · 58 flights
-
WN826
12% late · 53 flights
-
WN865
19% late · 52 flights
-
WN867
47% late · 51 flights
-
WN1039
32% late · 50 flights
-
WN597
26% late · 42 flights
-
WN546
15% late · 41 flights
-
WN866
25% late · 36 flights
-
WN1660
23% late · 33 flights
-
WN673
9% late · 33 flights
-
WN1658
20% late · 31 flights
-
WN2054
19% late · 31 flights
-
WN2726
6% late · 31 flights
-
WN3361
10% late · 31 flights
-
WN700
21% late · 24 flights
-
WN791
33% late · 24 flights
-
WN1374
18% late · 22 flights
-
WN680
5% late · 22 flights
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