Route Reliability
Baltimore → Knoxville
BWI–TYS · 464 miles · Baltimore/Washington International Thurgood Marshall Airport to McGhee Tyson Airport
81
Pretty Reliable
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 1.1%
- Cancelled
- 88
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 78% of the time across 88 flights. No comparison to make.
What the data says
Wednesdays have been rough.
BWI–TYS flights arrived on time 92% of the time on Tuesdays and just 58% on Wednesdays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon83%(12 flights)
- Tue92%(12 flights)
- Wed58%(12 flights)
- Thu85%(13 flights)
- Fri75%(12 flights)
- Sat77%(13 flights)
- Sun77%(13 flights)
- 9 AM–12 PM—(8 flights)
- 6–9 PM76%(79 flights)
71%
May
Mar 73% → May 71% on time
| Month | On-time percentage | Flights |
|---|---|---|
| March 2026 | 73% | 26 |
| April 2026 | 90% | 30 |
| May 2026 | 71% | 31 |
Same trip, other airports
Keep nerding
Based on 88 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.