Route on-time record
ONT to DFW: most on-time flights and the best time to fly
Ontario (Ontario International Airport) to Dallas-Fort Worth (Dallas Fort Worth International Airport). 2,315 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 3.0% were cancelled. The most reliable flight number was American 3136 at 7:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
ONT → DFW
Ontario to Dallas-Fort Worth: 2,315 nonstop flights a year
On time (12 months)
78%
Cancelled
3.0%
avg delay 22 min
Best time to leave
Before 9 AM
86% on time vs 68% noon to 3 PM
Most reliable airline
American
76% 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 · American 3136
7:30 AM → 12:30 PM3h 00m nonstop
Local times, typical schedule. Last flown 2026-05-20.
87%
chance on time
- On time (history)
- 95%
- Cancelled
- 2.3%
- Avg arrival delay
- 41 min
- Arrived on time 95% of the time (42 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; Noon to 3 PM: 68%).
- Short track record (42 flights), so its score leans on the airline's record at this hour.
Limited track record · 42 flights
Find American 3136 fares Opens this date on Aviasales#2 · American 1412
6:00 AM → 11:05 AM3h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1833; its record covers all of them.
86%
chance on time
- On time (history)
- 88%
- Cancelled
- 1.7%
- Avg arrival delay
- 14 min
- Arrived on time 88% of the time (406 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; Noon to 3 PM: 68%).
Strong track record · 406 flights
Find American 1412 fares Opens this date on Aviasales#3 · American 2893
7:00 AM → 12:09 PM3h 09m nonstop
Local times, typical schedule. Last flown 2026-05-31.
84%
chance on time
- On time (history)
- 83%
- Cancelled
- 2.9%
- Avg arrival delay
- 34 min
- Arrived on time 83% of the time (133 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; Noon to 3 PM: 68%).
Moderate track record · 133 flights
Find American 2893 fares Opens this date on Aviasales#4 · American 991
11:59 PM → 5:00 AM3h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2773, 2277; its record covers all of them.
78%
chance on time
- On time (history)
- 81%
- Cancelled
- 4.4%
- Avg arrival delay
- 12 min
- Arrived on time 81% of the time (283 flights, Jun 2025 to May 2026).
- Cancelled 4.4% of the time (13 of 296).
- 65% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 283 flights
Find American 991 fares Opens this date on Aviasales#5 · American 2238
10:22 AM → 3:30 PM3h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 78% of the time (9 flights, Jun 2025 to May 2026).
- Lands inside DFW's trouble window: 53% of its 139 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find American 2238 fares Opens this date on Aviasales#6 · Frontier 4690
8:30 AM → 1:39 PM3h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
72%
chance on time
- On time (history)
- 77%
- Cancelled
- 0.8%
- Avg arrival delay
- 16 min
- Arrived on time 77% of the time (129 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; Noon to 3 PM: 68%).
- Lands inside DFW's trouble window: 53% of its 139 ground stops and delay programs started between 1 PM and 7 PM.
- 52% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 129 flights
Find Frontier 4690 fares Opens this date on Aviasales#7 · American 2461
10:59 AM → 4:00 PM3h 01m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 1820; its record covers all of them.
72%
chance on time
- On time (history)
- 73%
- Cancelled
- 2.3%
- Avg arrival delay
- 31 min
- Arrived on time 73% of the time (341 flights, Jun 2025 to May 2026).
- Lands inside DFW's trouble window: 53% of its 139 ground stops and delay programs started between 1 PM and 7 PM.
- 64% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 341 flights
Find American 2461 fares Opens this date on Aviasales#8 · American 2462
2:08 PM → 7:15 PM3h 07m nonstop
Local times, typical schedule. Last flown 2026-05-20.
71%
chance on time
- On time (history)
- 79%
- Cancelled
- 2.3%
- Avg arrival delay
- 19 min
- Arrived on time 79% of the time (43 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 68% on time; Before 9 AM: 86%).
- 71% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find American 2462 fares Opens this date on Aviasales#9 · American 2239
2:18 PM → 7:30 PM3h 12m nonstop
Local times, typical schedule. Last flown 2026-05-31.
70%
chance on time
- On time (history)
- 77%
- Cancelled
- 13.3%
- Avg arrival delay
- 10 min
- Arrived on time 77% of the time (13 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 68% on time; Before 9 AM: 86%).
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find American 2239 fares Opens this date on Aviasales#10 · Frontier 2924
7:09 PM → 12:05 AM2h 56m nonstop
Local times, typical schedule. Last flown 2026-05-04.
70%
chance on time
- On time (history)
- 70%
- Cancelled
- 9.5%
- Avg arrival delay
- 16 min
- Arrived on time 70% of the time (86 flights, Jun 2025 to May 2026).
- Cancelled 9.5% of the time (9 of 95).
- 67% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 86 flights
Find Frontier 2924 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- American Airlines76%
2,000 flights · 78% on time as flown · 2.9% cancel
- Frontier Airlines73%
315 flights · 76% on time as flown · 3.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM86%
824 flights · avg delay 19 min
- 9 AM to noon74%
386 flights · avg delay 29 min
- Noon to 3 PM68%
564 flights · avg delay 28 min
- 3 to 6 PM69%
125 flights · avg delay 21 min
- 6 to 9 PM74%
95 flights · avg delay 14 min
- After 9 PM82%
321 flights · avg delay 14 min
Smarter routing
Nearby airports that run more on time
LGB → DAL 84% chance on time
Long Beach International Airport to Dallas Love Field · 562 flights a year · 48 mi from your airports · yours: 75%
BUR → DAL 84% chance on time
Hollywood Burbank/Bob Hope Airport to Dallas Love Field · 434 flights a year · 56 mi from your airports · yours: 75%
BUR → DFW 79% chance on time
Hollywood Burbank/Bob Hope Airport to Dallas Fort Worth International Airport · 729 flights a year · 44 mi from your airports · yours: 75%
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 aircraft44%
- Airline (crew, maintenance, boarding)41%
- Air traffic control and airport volume11%
- Severe weather3%
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
ONT to DFW questions
- What time of day is best to fly ONT to DFW?
- Before 9 AM: 86% of flights arrived on time, against 68% for departures noon to 3 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 ONT to DFW?
- American, with a season-adjusted 76% chance of operating and arriving on time over 2,000 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 ONT to DFW?
- July (71% on time); the best was February (88%), 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 ONT
- DFW to ONT (return)
- ONT to PHX 83%
- ONT to DEN 79%
- ONT to SEA 86%
- ONT to LAS 78%
- ONT to SMF 86%
- ONT to OAK 87%
- ONT to SJC 86%
- ONT to SFO 69%
- ONT to SLC 91%
- ONT to ATL 90%
- ONT to PDX 88%
- ONT to IAH 85%
Live status: FAA delays and ground stops