Historical on-time performance
Salt Lake City to Baltimore
1,864 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–BWI arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 653 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time85%Medianon timep9020 minCancel0.0%Flights275
- Southwest AirlinesOn-time76%Medianon timep9035 minCancel0.5%Flights378
Why flights run late
Delay causes
- Airline41%
- Weather1%
- Air traffic (NAS)20%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SLC → BWI
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 70% to 88% on time.
- Mornings88% on time · p90 15 min · 138 flights · limited
- Evenings87% on time · p90 30 min · 122 flights · limited
- Overnights79% on time · p90 25 min · 963 flights
- Middays75% on time · p90 35 min · 495 flights
- Afternoons70% on time · p90 35 min · 311 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.
- Tuesdays82% on time · p90 25 min · 277 flights
- Wednesdays82% on time · p90 25 min · 276 flights
- Saturdays81% on time · p90 25 min · 339 flights
- Thursdays76% on time · p90 30 min · 275 flights
- Sundays76% on time · p90 25 min · 298 flights
- Mondays75% on time · p90 30 min · 284 flights
- Fridays73% on time · p90 30 min · 280 flights
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