MDW to PHX flight delays & on-time performance
Nonstop flights from Chicago Midway International Airport to Phoenix Sky Harbor International Airport · 1,444 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MDW or PHX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (MDW) to Phoenix (PHX) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.6% were cancelled, and 7% arrived an hour or more late.
- Departures scheduled around 5am did best (94% on time); around 9pm did worst (53%).
- Saturday was the most reliable day to fly (82% on time) and Monday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (43%).
Which airline is most on time from MDW to PHX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Frontier Airlines | 78% | 1.7% | 35 min | 8.6% | 118 |
| Southwest Airlines | 76% | 1.6% | 14 min | 6.5% | 2,620 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am94%283 flights
- 6am87%128 flights
- 7am82%214 flights
- 8am89%162 flights
- 9am86%144 flights
- 10am85%141 flights
- 11am75%171 flights
- 12pm81%150 flights
- 1pm80%124 flights
- 2pm75%105 flights
- 3pm71%170 flights
- 4pm63%156 flights
- 5pm69%174 flights
- 6pm57%182 flights
- 7pm61%134 flights
- 8pm66%136 flights
- 9pm53%118 flights
- 10pm53%46 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%2.3% cancelled
- Tuesday78%1.1% cancelled
- Wednesday79%0.8% cancelled
- Thursday77%1.9% cancelled
- Friday73%1.6% cancelled
- Saturday82%2.3% cancelled
- Sunday72%1.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft43%
- Airline (crew, maintenance, cleaning, fueling)38%
- Air traffic control & airport congestion16%
- Extreme weather3%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather73%
- Airline (crew, maintenance, cleaning, fueling)20%
- Air traffic control & airport congestion7%
- Security0%
MDW to PHX: common questions
- How often are MDW to PHX flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Chicago to Phoenix cancelled?
- 1.6% of scheduled flights were cancelled (45 of 2,738).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 56 min behind schedule on average, and 6.6% of flights were an hour or more late.
- How long is taxi time at MDW?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PHX to MDW — 72% on time
More flights from Chicago
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MDW → PHX, nonstop flights by US airlines that report to the DOT. How we calculate this.