Route on-time record
ORD to PHX: most on-time flights and the best time to fly
Chicago (Chicago O'Hare International Airport) to Phoenix (Phoenix Sky Harbor International Airport). 5,632 nonstop flights in Jun 2025 to May 2026, 74% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was United 2225 at 9:02 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
ORD → PHX
Chicago to Phoenix: 5,632 nonstop flights a year
On time (12 months)
74%
Cancelled
1.6%
avg delay 20 min
Best time to leave
Before 9 AM
85% on time vs 57% after 9 PM
Most reliable airline
United
79% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · United 2225
9:02 AM → 11:03 AM4h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 91%
- Cancelled
- 1.1%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (89 flights, Jun 2025 to May 2026).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Moderate track record · 89 flights
Find United 2225 fares Opens this date on Aviasales#2 · American 769
7:11 AM → 9:03 AM3h 52m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 88%
- Cancelled
- 1.8%
- Avg arrival delay
- 18 min
- Arrived on time 88% of the time (161 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 57%).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Moderate track record · 161 flights
Find American 769 fares Opens this date on Aviasales#3 · American 2434
5:00 AM → 6:42 AM3h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 319, 2320; its record covers all of them.
86%
chance on time
- On time (history)
- 88%
- Cancelled
- 2.0%
- Avg arrival delay
- 14 min
- Arrived on time 88% of the time (148 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 57%).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Moderate track record · 148 flights
Find American 2434 fares Opens this date on Aviasales#4 · United 2619
7:20 AM → 9:22 AM4h 05m nonstop
Local times, typical schedule. Last flown 2026-04-28.
86%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 85% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 57%).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Moderate track record · 87 flights
Find United 2619 fares Opens this date on Aviasales#5 · United 2164
11:08 AM → 1:11 PM4h 07m nonstop
Local times, typical schedule. Last flown 2026-05-20.
85%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 13 min
- Arrived on time 87% of the time (98 flights, Jun 2025 to May 2026).
- Never cancelled in 98 scheduled flights.
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Moderate track record · 98 flights
Find United 2164 fares Opens this date on Aviasales#6 · United 455
12:55 PM → 2:58 PM4h 03m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 84%
- Cancelled
- 0.5%
- Avg arrival delay
- 10 min
- Arrived on time 84% of the time (193 flights, Jun 2025 to May 2026).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 193 flights
Find United 455 fares Opens this date on Aviasales#7 · United 2101
1:05 PM → 3:14 PM4h 09m nonstop
Local times, typical schedule. Last flown 2026-03-28.
84%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 19 min
- Arrived on time 88% of the time (24 flights, Jun 2025 to May 2026).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
- 90% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 24 flights
Find United 2101 fares Opens this date on Aviasales#8 · United 321
9:10 AM → 11:20 AM4h 10m nonstop
Local times, typical schedule. Last flown 2026-05-20.
81%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 81% of the time (206 flights, Jun 2025 to May 2026).
- Never cancelled in 206 scheduled flights.
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Strong track record · 206 flights
Find United 321 fares Opens this date on Aviasales#9 · United 2053
3:55 PM → 5:58 PM4h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 81%
- Cancelled
- 0.0%
- Avg arrival delay
- 20 min
- Arrived on time 81% of the time (109 flights, Jun 2025 to May 2026).
- Never cancelled in 109 scheduled flights.
- Departs inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
- Lands inside PHX's trouble window: 43% of its 46 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 109 flights
Find United 2053 fares Opens this date on Aviasales#10 · American 695
7:04 AM → 9:06 AM4h 02m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 3172; its record covers all of them.
79%
chance on time
- On time (history)
- 80%
- Cancelled
- 1.5%
- Avg arrival delay
- 12 min
- Arrived on time 80% of the time (197 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 85% on time; After 9 PM: 57%).
- Departs outside ORD's trouble window (2 PM to 8 PM, when 44% of its 243 ground stops and delay programs started).
Moderate track record · 197 flights
Find American 695 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines79%
1,944 flights · 80% on time as flown · 0.5% cancel
- American Airlines71%
2,992 flights · 73% on time as flown · 2.2% cancel
- Frontier Airlines65%
212 flights · 66% on time as flown · 2.9% cancel
- Southwest Airlines57%
484 flights · 57% on time as flown · 2.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM85%
1,111 flights · avg delay 12 min
- 9 AM to noon79%
1,047 flights · avg delay 15 min
- Noon to 3 PM73%
1,113 flights · avg delay 19 min
- 3 to 6 PM68%
1,099 flights · avg delay 27 min
- 6 to 9 PM65%
988 flights · avg delay 27 min
- After 9 PM57%
274 flights · avg delay 35 min
Best day: Saturday (81%). Worst: Sunday (75%).
Smarter routing
Nearby airports that run more on time
MDW → PHX 75% chance on time
Chicago Midway International Airport to Phoenix Sky Harbor International Airport · 2,820 flights a year · 15 mi from your airports · yours: 72%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft46%
- Airline (crew, maintenance, boarding)34%
- Air traffic control and airport volume16%
- Severe weather4%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
ORD to PHX questions
- What time of day is best to fly ORD to PHX?
- Before 9 AM: 85% of flights arrived on time, against 57% for departures after 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from ORD to PHX?
- United, with a season-adjusted 79% chance of operating and arriving on time over 1,944 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on ORD to PHX?
- July (69% on time); the best was February (84%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from ORD
- PHX to ORD (return)
- ORD to LGA 67%
- ORD to BOS 68%
- ORD to LAX 74%
- ORD to DFW 70%
- ORD to DCA 69%
- ORD to MCO 73%
- ORD to ATL 74%
- ORD to MSP 69%
- ORD to DEN 74%
- ORD to IAH 75%
- ORD to EWR 69%
- ORD to DTW 71%
Live status: FAA delays and ground stops