Route
BWI → SLC
Baltimore/Washington International Thurgood Marshall Airport Salt Lake City International Airport
1,865 miles
Return route SLC → BWI →
How punctual is this route?
- On-time arrivals
- 76.3%
- Less than 15 minutes late
- Cancelled
- 1.8%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 769
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 26%
- Air traffic control & airport 21%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.3% | 60 |
| October 2025 | 85.2% | 61 |
| November 2025 | 83.6% | 56 |
| December 2025 | 58.3% | 61 |
| January 2026 | 84.8% | 70 |
| February 2026 | 82.4% | 78 |
| March 2026 | 60.3% | 68 |
| April 2026 | 83.3% | 61 |
| May 2026 | 65.6% | 62 |
| June 2026 | 64.1% | 64 |
| July 2026 | 81.2% | 65 |
| August 2026 | 78.7% | 63 |
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 | 409 | 72.8% | 1.7% | 59 min |
| Delta Air Lines | 360 | 80.2% | 1.9% | 67 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
Reviews
No reviews yet. Be the first to review this route.