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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.

PHX → ORD

Phoenix to Chicago: 5,633 nonstop flights a year

On time (12 months)

77%

Cancelled

1.6%

avg delay 19 min

Best time to leave

Before 9 AM

87% on time vs 68% 3 to 6 PM

Most reliable airline

American

78% chance on time

Check PHX to ORD fares

Lowest nonstop fare seen in the next two months: $253 (United 1210 on 2026-10-31). 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. #1 · American 2765

    7:00 AM → 12:43 PM3h 43m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    90%

    chance on time

    On time (history)
    91%
    Cancelled
    0.6%
    Avg arrival delay
    4 min
    • Arrived on time 91% of the time (164 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 68%).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).

    Moderate track record · 164 flights

    Find American 2765 fares Opens this date on Aviasales

  2. #2 · American 1114

    6:00 AM → 11:37 AM3h 37m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 1932; its record covers all of them.

    89%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 91% of the time (74 flights, Jun 2025 to May 2026).
    • Never cancelled in 74 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 68%).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).

    Moderate track record · 74 flights

    Find American 1114 fares Opens this date on Aviasales

  3. #3 · American 3008

    5:00 AM → 10:40 AM3h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2201, 1105; its record covers all of them.

    89%

    chance on time

    On time (history)
    90%
    Cancelled
    2.4%
    Avg arrival delay
    5 min
    • Arrived on time 90% of the time (83 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 68%).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).

    Moderate track record · 83 flights

    Find American 3008 fares Opens this date on Aviasales

  4. #4 · American 1748

    11:59 PM → 5:21 AM3h 22m nonstop

    Local times, typical schedule. Last flown 2026-05-19.

    86%

    chance on time

    On time (history)
    93%
    Cancelled
    2.3%
    Avg arrival delay
    3 min
    • Arrived on time 93% of the time (42 flights, Jun 2025 to May 2026).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
    • Short track record (42 flights), so its score leans on the airline's record at this hour.

    Limited track record · 42 flights

    Find American 1748 fares Opens this date on Aviasales

  5. #5 · United 356

    7:00 AM → 12:36 PM3h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    86%

    chance on time

    On time (history)
    86%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 86% of the time (106 flights, Jun 2025 to May 2026).
    • Never cancelled in 106 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 68%).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).

    Moderate track record · 106 flights

    Find United 356 fares Opens this date on Aviasales

  6. #6 · American 2399

    7:30 AM → 1:07 PM3h 37m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    86%

    chance on time

    On time (history)
    86%
    Cancelled
    0.0%
    Avg arrival delay
    4 min
    • Arrived on time 86% of the time (43 flights, Jun 2025 to May 2026).
    • Never cancelled in 43 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 68%).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).

    Limited track record · 43 flights

    Find American 2399 fares Opens this date on Aviasales

  7. #7 · United 1194

    6:15 AM → 11:44 AM3h 29m nonstop

    Local times, typical schedule. Last flown 2026-03-28.

    86%

    chance on time

    On time (history)
    81%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 81% of the time (21 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 68%).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
    • Short track record (21 flights), so its score leans on the airline's record at this hour.

    Limited track record · 21 flights

    Find United 1194 fares Opens this date on Aviasales

  8. #8 · United 2171

    11:50 PM → 5:17 AM3h 27m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    85%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find United 2171 fares Opens this date on Aviasales

  9. #9 · American 2252

    10:14 AM → 4:04 PM3h 50m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    84%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (10 flights, Jun 2025 to May 2026).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
    • Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (10 flights), so its score leans on the airline's record at this hour.

    Limited track record · 10 flights

    Find American 2252 fares Opens this date on Aviasales

  10. #10 · American 3205

    11:51 PM → 5:25 AM3h 34m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    83%

    chance on time

    On time (history)
    89%
    Cancelled
    10.0%
    Avg arrival delay
    20 min
    • Arrived on time 89% of the time (27 flights, Jun 2025 to May 2026).
    • Cancelled 10.0% of the time (3 of 30).
    • Departs outside PHX's trouble window (2 PM to 8 PM, when 43% of its 46 ground stops and delay programs started).
    • Short track record (27 flights), so its score leans on the airline's record at this hour.

    Limited track record · 27 flights

    Find American 3205 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines78%

    2,994 flights · 80% on time as flown · 2.1% cancel

  • United Airlines77%

    1,943 flights · 78% on time as flown · 0.5% cancel

  • Frontier Airlines67%

    212 flights · 68% on time as flown · 3.1% cancel

  • Southwest Airlines62%

    484 flights · 60% on time as flown · 1.3% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM87%

    1,478 flights · avg delay 10 min

  • 9 AM to noon77%

    1,003 flights · avg delay 17 min

  • Noon to 3 PM71%

    1,168 flights · avg delay 22 min

  • 3 to 6 PM68%

    1,038 flights · avg delay 28 min

  • 6 to 9 PM72%

    570 flights · avg delay 27 min

  • After 9 PM85%

    376 flights · avg delay 12 min

Best day: Saturday (83%). Worst: Sunday (79%).

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