PlainFlights

Route · ONT → DFW · 2020–2025 BTS data

Ontario to Dallas/Fort Worth

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ONT to DFW (Ontario to Dallas/Fort Worth) ranks #827 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.8%
On-time
+1.8 pts
vs US avg
97 min
Delay when late
12,747
Flights
#827 of 4927
Corpus placement

Cancelled

2.3%

Best Month

Oct 2024 93%

Worst Month

Jul 2025 67%

Distance

1,188 mi

Carriers

4

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 201 36 3 0 F9,AA
Nov 2025 188 43 5 2 F9,AA
Oct 2025 207 40 3 2 AA,F9
Sep 2025 183 42 5 1 F9,AA
Aug 2025 213 68 8 3 AA,F9
Jul 2025 224 73 10 1 AA,F9
Jun 2025 218 62 8 1 AA,F9
May 2025 214 39 5 2 AA,F9
Apr 2025 227 43 5 3 F9,AA
Mar 2025 181 33 4 0 AA,F9
Feb 2025 144 15 1 0 AA,F9
Jan 2025 156 22 8 1 AA,F9
Dec 2024 193 46 3 4 AA,F9
Nov 2024 190 31 4 1 F9,AA
Oct 2024 212 15 0 0 F9,AA
Sep 2024 209 30 0 0 AA,F9
Aug 2024 208 42 3 0 AA,F9
Jul 2024 212 51 5 0 AA,F9
Jun 2024 209 35 6 4 AA,F9
May 2024 218 70 11 2 AA,F9
Apr 2024 211 35 7 1 AA,F9
Mar 2024 204 36 1 1 AA,F9
Feb 2024 161 18 0 0 AA,F9
Jan 2024 177 35 3 1 AA,F9

ONT–DFW seasonal on-time pattern

Best: February (86.3%) · weakest: July (73.4%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 81.1%

Strongest calendar month

February

86.3% on-time · ~146 flights/mo

Busiest calendar month

August

~202 flights/mo avg

Weakest calendar month

July

73.4% on-time · ~198 flights/mo

Cancellation Rate

2.3%

108 of 4,760 flights

Diversion Rate

0.6%

30 of 4,760 flights

Origin-hub reliability standing

Mid-pack among ONT departures

From ONT, this corridor sits with 9 other 75–85% on-time routes out of 21 tracked departures, not the hub's reliability leaders (10 at ≥85%) and not the softest ( 2 below 75%). Destination: Dallas/Fort Worth · fleet on-time rank #2824 of 4927.

What the Data Says About ONT to DFW

12,747 tracked flights put the ONT to DFW pairing (Ontario to Dallas/Fort Worth) at a 80.8% on-time rate, squarely in line with the wider network. Delays that do occur run 97.1 minutes on average. Across the 1,188-mile route and its 4 carriers, the trailing 24 months show 2.3% cancelled and 0.6% diverted (4,760 flights sampled).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 93% on-time, while Jul 2025 came in at just 67% - a 26-point swing worth factoring into travel timing.

On the multi-year calendar, ONT–DFW peaks in February at 86.3% on-time while August carries the heaviest traffic (~202 flights per month) ; the softest month is July at 73.4%, a 12.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does ONT to DFW rank among US routes by traffic?
According to PlainFlights' route traffic ranking, ONT to DFW ranks #827 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from ONT to DFW?
Flights from Ontario to Dallas/Fort Worth have a 80.8% on-time rate based on 12,747 flights. The average delay is 97.1 minutes. The best recent month was Oct 2024 with 93% on-time.
What is the cancellation rate for ONT to DFW?
Over the last 24 months, 2.3% of flights on this route were cancelled (108 of 4,760 flights) and 0.6% were diverted.
How far is the flight from ONT to DFW?
The flight distance from Ontario (ONT) to Dallas/Fort Worth (DFW) is approximately 1,188 miles. This route is served by 4 carriers.
When is the best time to fly from ONT to DFW?
The best recent month for on-time performance was Oct 2024 (93% on-time). The worst was Jul 2025 (67% on-time). Consider booking during months with historically better performance.

Airports on this route

Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Using ONT–DFW data

ONT–DFW is mid-pack at 80.8% on-time; month and carrier mix move more than the corridor headline.

  • Compare ONT and DFW airport profiles: delay causes and top routes differ even on the same corridor. ONT airport
  • If your dates flex, February (86.3% on-time) beats July (73.4%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.8% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.