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1,923 km · Domestic

Austin Bergstrom (AUS) – Ontario (ONT)

In July 2026, 61 flights operated between Austin Bergstrom and Ontario (both directions), and 55.7% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January6154▼ 11.5%
February5648▼ 14.3%
March6263▲ 1.6%
April6054▼ 10.0%
May6252▼ 16.1%
June60600.0%
July6261▼ 1.6%
August52––
September52––
October54–in progress
November58––
December61––
Year to date (Jan–Jul)423392▼ 7.3%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January90.2%85.2%▼ 5.5%
February78.6%83.3%▲ 6.0%
March82.3%79.4%▼ 3.5%
April88.3%83.3%▼ 5.7%
May75.8%63.5%▼ 16.2%
June76.7%61.7%▼ 19.6%
July79.0%55.7%▼ 29.5%
August75.0%––
September88.5%––
October83.3%–in progress
November69.0%––
December73.8%––
Year-to-date average (Jan–Jul)81.6%73.2%▼ 10.3%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January110.0%
February00–
March00–
April00–
May00–
June00–
July01–
August0––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)12▲ 100.0%

Airlines on this route

  1. Southwest Airlines 99.9%
  2. SkyWest Airlines 0.1%

Oct 1, 2024 – Jul 31, 2026

By direction

AUS → ONT

Scheduled flights
627
Flights operated
625
Cancelled
2 · 0.3%
On-time departures
70.6%

ONT → AUS

Scheduled flights
629
Flights operated
627
Cancelled
2 · 0.3%
On-time departures
84.4%

AUS → ONT and ONT → AUS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,255 99.9% 77.5% 4
SkyWest Airlines OO 1 0.1% 0.0% 0

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay16:00–17:0015.9min · 233 recorded · 233 measured
Recorded flights1,256AUS–ONT

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 36 recorded · 36 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 133 recorded · 133 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 167 recorded · 166 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 97 recorded · 96 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 82 recorded · 82 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 129 recorded · 128 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 142 recorded · 142 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 76 recorded · 76 measured · Source: the US BTS 16:00 · 68.2% · 233 recorded · 233 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 43 recorded · 42 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 9 recorded · 9 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 36 recorded · 36 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 133 recorded · 133 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 167 recorded · 166 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 97 recorded · 96 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 82 recorded · 82 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 129 recorded · 128 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 142 recorded · 142 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 76 recorded · 76 measured · Source: the US BTS 16:00 · 15.9 min · 233 recorded · 233 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 4 recorded · 4 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 43 recorded · 42 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 9 recorded · 9 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 36 · 36 recorded · 36 measured · Source: the US BTS 07:00 · 42 · 42 recorded · 42 measured · Source: the US BTS 08:00 · 22 · 22 recorded · 22 measured · Source: the US BTS 09:00 · 133 · 133 recorded · 133 measured · Source: the US BTS 10:00 · 167 · 167 recorded · 166 measured · Source: the US BTS 11:00 · 97 · 97 recorded · 96 measured · Source: the US BTS 12:00 · 82 · 82 recorded · 82 measured · Source: the US BTS 13:00 · 129 · 129 recorded · 128 measured · Source: the US BTS 14:00 · 142 · 142 recorded · 142 measured · Source: the US BTS 15:00 · 76 · 76 recorded · 76 measured · Source: the US BTS 16:00 · 233 · 233 recorded · 233 measured · Source: the US BTS 17:00 · 8 · 8 recorded · 8 measured · Source: the US BTS 18:00 · 4 · 4 recorded · 4 measured · Source: the US BTS 19:00 · 33 · 33 recorded · 33 measured · Source: the US BTS 20:00 · 43 · 43 recorded · 42 measured · Source: the US BTS 21:00 · 9 · 9 recorded · 9 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00No observations———
06:00Fewer than 200 measured departures—3636
07:00Fewer than 200 measured departures—4242
08:00Fewer than 200 measured departures—2222
09:00Fewer than 200 measured departures—133133
10:00Fewer than 200 measured departures—166167
11:00Fewer than 200 measured departures—9697
12:00Fewer than 200 measured departures—8282
13:00Fewer than 200 measured departures—128129
14:00Fewer than 200 measured departures—142142
15:00Fewer than 200 measured departures—7676
16:0068.2%15.9 min233233
17:00Fewer than 200 measured departures—88
18:00Fewer than 200 measured departures—44
19:00Fewer than 200 measured departures—3333
20:00Fewer than 200 measured departures—4243
21:00Fewer than 200 measured departures—99
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 188 · 188 recorded · 186 measured · Source: the US BTS Tuesday · 188 · 188 recorded · 188 measured · Source: the US BTS Wednesday · 189 · 189 recorded · 188 measured · Source: the US BTS Thursday · 186 · 186 recorded · 186 measured · Source: the US BTS Friday · 188 · 188 recorded · 187 measured · Source: the US BTS Saturday · 130 · 130 recorded · 130 measured · Source: the US BTS Sunday · 187 · 187 recorded · 187 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—186188
TuesdayFewer than 200 measured departures—188188
WednesdayFewer than 200 measured departures—188189
ThursdayFewer than 200 measured departures—186186
FridayFewer than 200 measured departures—187188
SaturdayFewer than 200 measured departures—130130
SundayFewer than 200 measured departures—187187

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 117 · 117 recorded · 115 measured · Source: the US BTS Feb · 104 · 104 recorded · 104 measured · Source: the US BTS Mar · 125 · 125 recorded · 125 measured · Source: the US BTS Apr · 114 · 114 recorded · 114 measured · Source: the US BTS May · 114 · 114 recorded · 114 measured · Source: the US BTS Jun · 120 · 120 recorded · 120 measured · Source: the US BTS Jul · 124 · 124 recorded · 123 measured · Source: the US BTS Aug · 52 · 52 recorded · 52 measured · Source: the US BTS Sep · 52 · 52 recorded · 52 measured · Source: the US BTS Oct · 94 · 94 recorded · 94 measured · Source: the US BTS Nov · 116 · 116 recorded · 116 measured · Source: the US BTS Dec · 124 · 124 recorded · 123 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—115117
FebFewer than 200 measured departures—104104
MarFewer than 200 measured departures—125125
AprFewer than 200 measured departures—114114
MayFewer than 200 measured departures—114114
JunFewer than 200 measured departures—120120
JulFewer than 200 measured departures—123124
AugFewer than 200 measured departures—5252
SepFewer than 200 measured departures—5252
OctFewer than 200 measured departures—9494
NovFewer than 200 measured departures—116116
DecFewer than 200 measured departures—123124

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 77.2% 970
  • Delayed >15 min 22.5% 282
  • Cancelled 0.3% 4
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

17
17 of 17
Flight numbersBy direction DeparturesOn time
WN3380 AUS → ONT 96 77.1%
WN2254 ONT → AUS 91 90.0%
WN732 AUS → ONT 61 63.9%
WN705 AUS → ONT 58 72.4%
WN717 AUS → ONT 58 74.1%
WN3526 ONT → AUS 50 82.0%
WN467 AUS → ONT 50 81.6%
WN419 AUS → ONT 42 76.2%
WN669 ONT → AUS 42 68.3%
WN711 ONT → AUS 42 88.1%
WN1570 ONT → AUS 41 87.8%
WN1780 ONT → AUS 35 94.3%
WN372 AUS → ONT 34 57.6%
WN159 ONT → AUS 33 93.9%
WN2167 AUS → ONT 33 63.6%
WN3344 ONT → AUS 33 75.8%
WN4773 ONT → AUS 31 96.8%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 61 −1.6% 1 55.7%
June 2026 60 +0.0% 0 61.7%
May 2026 52 −16.1% 0 63.5%
April 2026 54 −10.0% 0 83.3%
March 2026 63 +1.6% 0 79.4%
February 2026 48 −14.3% 0 83.3%
January 2026 54 −11.5% 1 85.2%
December 2025 61 −1.6% 1 73.8%
November 2025 58 +0.0% 0 69.0%
October 2025 54 +35.0% 0 83.3%
September 2025 52 0 88.5%
August 2025 52 0 75.0%
July 2025 62 0 79.0%
June 2025 60 0 76.7%
May 2025 62 0 75.8%
April 2025 60 0 88.3%
March 2025 62 0 82.3%
February 2025 56 0 78.6%
January 2025 61 1 90.2%
December 2024 62 0 74.2%
November 2024 58 0 82.8%
October 2024 40 0 77.5%

How to read this chart

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