Historical on-time performance
Phoenix to Chicago
1,444 miData through Dec 2025Source: US DOT · BTS
Flights on PHX–MDW arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 2,719 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9030 minCancel0.8%Flights2,688
- Frontier AirlinesbestOn-time90%Medianon timep9010 minCancel0.0%Flights31
Why flights run late
Delay causes
- Airline36%
- Weather2%
- Air traffic (NAS)13%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PHX → MDW
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 90% on time.
- Mornings90% on time · p90 10 min · 3,387 flights
- Middays80% on time · p90 30 min · 1,804 flights
- Afternoons71% on time · p90 45 min · 1,740 flights
- Evenings66% on time · p90 50 min · 1,761 flights
- Overnights58% on time · p90 65 min · 376 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 81% on time.
- Saturdays81% on time · p90 25 min · 1,091 flights
- Wednesdays81% on time · p90 25 min · 1,283 flights
- Tuesdays80% on time · p90 30 min · 1,282 flights
- Mondays77% on time · p90 30 min · 1,391 flights
- Sundays77% on time · p90 40 min · 1,282 flights
- Fridays77% on time · p90 35 min · 1,372 flights
- Thursdays77% on time · p90 35 min · 1,367 flights
Advertisement
Keep exploring