Historical on-time performance
Salt Lake City to Baltimore
Flights on SLC–BWI arrive on time 79% of the time over the last 12 months.
based on 656 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Southwest AirlinesOn-time80%Medianon timep9025 minCancel1.3%Flights381
- Delta Air LinesOn-time79%Medianon timep9025 minCancel0.7%Flights275
Why flights run late
Delay causes
- Airline40%
- Weather3%
- Air traffic (NAS)25%
- Late aircraft32%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline43%
- Weather57%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 7 cancellations with a reported cause (BTS reports causes from June 2003).
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 (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 92% on time.
- Mornings92% on time · p90 10 min · 146 flights · limited
- Evenings83% on time · p90 30 min · 185 flights · limited
- Overnights78% on time · p90 25 min · 989 flights
- Middays76% on time · p90 35 min · 533 flights
- Afternoons70% on time · p90 30 min · 329 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 83% on time.
- Tuesdays83% on time · p90 20 min · 298 flights
- Saturdays82% on time · p90 25 min · 357 flights
- Wednesdays81% on time · p90 25 min · 296 flights
- Thursdays76% on time · p90 25 min · 303 flights
- Mondays74% on time · p90 30 min · 308 flights
- Sundays73% on time · p90 30 min · 312 flights
- Fridays73% on time · p90 30 min · 308 flights
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