Historical on-time performance
Chicago to Phoenix
1,444 miData through May 2026Source: US DOT · BTS
Flights on MDW–PHX arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights
based on 2,684 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9040 minCancel1.6%Flights2,684
Why flights run late
Delay causes
- Airline37%
- Weather3%
- Air traffic (NAS)16%
- Late aircraft44%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline33%
- Weather60%
- Air traffic (NAS)7%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 42 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 MDW → PHX
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 — 89% on time.
- Mornings89% on time · p90 15 min · 2,870 flights
- Middays80% on time · p90 25 min · 1,954 flights
- Afternoons69% on time · p90 45 min · 1,312 flights
- Evenings65% on time · p90 55 min · 1,470 flights
- Overnights59% on time · p90 70 min · 1,458 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 79% on time.
- Saturdays79% on time · p90 30 min · 1,074 flights
- Wednesdays77% on time · p90 30 min · 1,265 flights
- Tuesdays76% on time · p90 35 min · 1,266 flights
- Mondays75% on time · p90 35 min · 1,389 flights
- Fridays75% on time · p90 40 min · 1,394 flights
- Sundays74% on time · p90 45 min · 1,296 flights
- Thursdays72% on time · p90 40 min · 1,380 flights
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