Delta Air Lines is the most reliable airline on the SLC to BWI route with a 80% on-time rate, compared to Southwest Airlines at 80%. Based on 1,297 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SLC to BWI
Salt Lake City to Baltimore — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines80%
Southwest Airlines80%
SLC to BWI Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 80% | 1.2% | 43m | 1,297 |
| Southwest AirlinesWNWorst | 80% | 0.7% | 49m | 1,145 |
Route Overview
80%
Overall On-Time
47m
Avg Delay
1%
Cancel Rate
2,498
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.