Route on-time record

OKC to ORD: most on-time flights and the best time to fly

Oklahoma City (OKC Will Rogers World Airport) to Chicago (Chicago O'Hare International Airport). 2,585 nonstop flights in Jun 2025 to May 2026, 75% arrived within 15 minutes and 2.4% were cancelled. The most reliable flight number was Republic 3460 at 2:30 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

OKC → ORD

Oklahoma City to Chicago: 2,585 nonstop flights a year

On time (12 months)

75%

Cancelled

2.4%

avg delay 24 min

Best time to leave

Before 9 AM

79% on time vs 63% 6 to 9 PM

Most reliable airline

Republic

84% chance on time

Check OKC to ORD fares

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 · Republic 3460 · sold as American Eagle, Delta Connection or United Express
2:30 PM → 4:47 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-03-28.
88%
chance on time
On time (history)
90%
Cancelled
2.7%
Avg arrival delay
9 min
- Arrived on time 90% of the time (71 flights, Jun 2025 to May 2026).
- Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 71 flights
Find 2:30 PM flight fares Opens this date on Aviasales
#2 · Republic 3702 · sold as American Eagle, Delta Connection or United Express
7:33 AM → 9:50 AM2h 17m nonstop
Local times, typical schedule. Last flown 2026-03-28.
87%
chance on time
On time (history)
86%
Cancelled
0.0%
Avg arrival delay
18 min
- Arrived on time 86% of the time (22 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 79% on time; 6 to 9 PM: 63%).
- 71% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (22 flights), so its score leans on the airline's record at this hour.
Limited track record · 22 flights
Find 7:33 AM flight fares Opens this date on Aviasales
#3 · Republic 3441 · sold as American Eagle, Delta Connection or United Express
12:53 PM → 3:13 PM2h 20m nonstop
Local times, typical schedule. Last flown 2026-05-20.
86%
chance on time
On time (history)
90%
Cancelled
0.0%
Avg arrival delay
9 min
- Arrived on time 90% of the time (21 flights, Jun 2025 to May 2026).
- 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 (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find 12:53 PM flight fares Opens this date on Aviasales
#4 · Republic 3456 · sold as American Eagle, Delta Connection or United Express
1:44 PM → 4:03 PM2h 19m nonstop
Local times, typical schedule. Last flown 2026-04-29.
82%
chance on time
On time (history)
84%
Cancelled
3.1%
Avg arrival delay
10 min
- Arrived on time 84% of the time (31 flights, Jun 2025 to May 2026).
- Cancelled 3.1% of the time (1 of 32).
- Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
- 54% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 31 flights
Find 1:44 PM flight fares Opens this date on Aviasales
#5 · SkyWest 5364 · sold as United Express, Delta Connection, American Eagle or Alaska
7:30 AM → 9:49 AM2h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
On time (history)
83%
Cancelled
2.2%
Avg arrival delay
18 min
- Arrived on time 83% of the time (312 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 79% on time; 6 to 9 PM: 63%).
Strong track record · 312 flights
Find 7:30 AM flight fares Opens this date on Aviasales
#6 · SkyWest 5823 · sold as United Express, Delta Connection, American Eagle or Alaska
9:43 AM → 12:00 PM2h 19m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
78%
Cancelled
1.7%
Avg arrival delay
17 min
- Arrived on time 78% of the time (337 flights, Jun 2025 to May 2026).
Strong track record · 337 flights
Find 9:43 AM flight fares Opens this date on Aviasales
#7 · SkyWest 5840 · sold as United Express, Delta Connection, American Eagle or Alaska
4:38 PM → 6:57 PM2h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
85%
Cancelled
3.5%
Avg arrival delay
15 min
- Arrived on time 85% of the time (55 flights, Jun 2025 to May 2026).
- Cancelled 3.5% of the time (2 of 57).
- 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 (55 flights), so its score leans on the airline's record at this hour.
Limited track record · 55 flights
Find 4:38 PM flight fares Opens this date on Aviasales
#8 · SkyWest 5285 · sold as United Express, Delta Connection, American Eagle or Alaska
12:25 PM → 2:45 PM2h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- 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 (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find 12:25 PM flight fares Opens this date on Aviasales
#9 · SkyWest 5637 · sold as United Express, Delta Connection, American Eagle or Alaska
4:25 PM → 6:46 PM2h 21m nonstop
Local times, typical schedule. Last flown 2026-05-17.
73%
chance on time
On time (history)
90%
Cancelled
8.3%
Avg arrival delay
13 min
- Arrived on time 90% of the time (10 flights, Jun 2025 to May 2026).
- 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 4:25 PM flight fares Opens this date on Aviasales
#10 · SkyWest 6517 · sold as United Express, Delta Connection, American Eagle or Alaska
6:44 AM → 9:07 AM2h 23m nonstop
Local times, typical schedule. Last flown 2026-05-20.
72%
chance on time
On time (history)
73%
Cancelled
2.4%
Avg arrival delay
31 min
- Arrived on time 73% of the time (83 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 79% on time; 6 to 9 PM: 63%).
Moderate track record · 83 flights
Find 6:44 AM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

Republic Airways (sold as American Eagle, Delta Connection or United Express)84%
225 flights · 89% on time as flown · 1.8% cancel
Envoy Air (sold as American Eagle)77%
39 flights · 84% on time as flown · 2.5% cancel
SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)71%
2,317 flights · 73% on time as flown · 2.5% cancel

On time by departure time

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

Before 9 AM79%
714 flights · avg delay 24 min
9 AM to noon79%
574 flights · avg delay 17 min
Noon to 3 PM76%
642 flights · avg delay 21 min
3 to 6 PM64%
420 flights · avg delay 36 min
6 to 9 PM63%
235 flights · avg delay 33 min

Best day: Saturday (83%). Worst: Sunday (76%).

Smarter routing

Nearby airports that run more on time

OKC → MDW 83% chance on time
OKC Will Rogers World Airport to Chicago Midway International Airport · 557 flights a year · 15 mi from your airports · yours: 73%
Rank flights Fares

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

Airline (crew, maintenance, boarding)56%
Air traffic control and airport volume20%
Late-arriving aircraft15%
Severe weather8%

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

OKC to ORD questions

What time of day is best to fly OKC to ORD?: Before 9 AM: 79% of flights arrived on time, against 63% for departures 6 to 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 OKC to ORD?: Republic, with a season-adjusted 84% chance of operating and arriving on time over 225 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 OKC to ORD?: July (74% on time); the best was April (85%), 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.

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