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2,811 km · Domestic

Nashville (BNA) – Ontario (ONT)

In July 2026, 62 flights operated between Nashville and Ontario (both directions), and 53.2% 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
January1826▲ 44.4%
February3438▲ 11.8%
March58580.0%
April60600.0%
May6162▲ 1.6%
June6059▼ 1.7%
July62620.0%
August62––
September60––
October62–in progress
November58––
December62––
Year to date (Jan–Jul)353365▲ 3.4%

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
January72.2%76.9%▲ 6.5%
February79.4%81.6%▲ 2.8%
March74.1%70.7%▼ 4.6%
April86.7%68.3%▼ 21.2%
May82.0%62.9%▼ 23.3%
June61.7%59.3%▼ 3.9%
July61.3%53.2%▼ 13.2%
August80.6%––
September81.7%––
October66.1%–in progress
November86.2%––
December64.5%––
Year-to-date average (Jan–Jul)73.9%67.6%▼ 8.6%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January02–
February00–
March00–
April00–
May10▼ 100.0%
June01–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)13▲ 200.0%

By direction

BNA → ONT

Scheduled flights
570
Flights operated
568
Cancelled
2 · 0.4%
On-time departures
62.3%

ONT → BNA

Scheduled flights
570
Flights operated
568
Cancelled
2 · 0.4%
On-time departures
82.9%

BNA → ONT and ONT → BNA counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,140 100.0% 72.6% 4

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

Recorded flights1,140BNA–ONT

Departure hour

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 · 37 · 37 recorded · 37 measured · Source: the US BTS 06:00 · 61 · 61 recorded · 61 measured · Source: the US BTS 07:00 · 80 · 80 recorded · 79 measured · Source: the US BTS 08:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 09:00 · 132 · 132 recorded · 131 measured · Source: the US BTS 10:00 · 109 · 109 recorded · 109 measured · Source: the US BTS 11:00 · 99 · 99 recorded · 99 measured · Source: the US BTS 12:00 · 113 · 113 recorded · 112 measured · Source: the US BTS 13:00 · 194 · 194 recorded · 194 measured · Source: the US BTS 14:00 · 44 · 44 recorded · 44 measured · Source: the US BTS 15:00 · 59 · 59 recorded · 59 measured · Source: the US BTS 16:00 · 99 · 99 recorded · 98 measured · Source: the US BTS 17:00 · 25 · 25 recorded · 25 measured · Source: the US BTS 18:00 · 56 · 56 recorded · 56 measured · Source: the US BTS 19:00 · 13 · 13 recorded · 13 measured · Source: the US BTS 20:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 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.

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
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—3737
06:00Fewer than 200 measured departures—6161
07:00Fewer than 200 measured departures—7980
08:00Fewer than 200 measured departures—1818
09:00Fewer than 200 measured departures—131132
10:00Fewer than 200 measured departures—109109
11:00Fewer than 200 measured departures—9999
12:00Fewer than 200 measured departures—112113
13:00Fewer than 200 measured departures—194194
14:00Fewer than 200 measured departures—4444
15:00Fewer than 200 measured departures—5959
16:00Fewer than 200 measured departures—9899
17:00Fewer than 200 measured departures—2525
18:00Fewer than 200 measured departures—5656
19:00Fewer than 200 measured departures—1313
20:00Fewer than 200 measured departures—11
21:00No observations———
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 · 168 · 168 recorded · 168 measured · Source: the US BTS Tuesday · 140 · 140 recorded · 140 measured · Source: the US BTS Wednesday · 136 · 136 recorded · 136 measured · Source: the US BTS Thursday · 166 · 166 recorded · 166 measured · Source: the US BTS Friday · 172 · 172 recorded · 170 measured · Source: the US BTS Saturday · 178 · 178 recorded · 177 measured · Source: the US BTS Sunday · 180 · 180 recorded · 179 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—168168
TuesdayFewer than 200 measured departures—140140
WednesdayFewer than 200 measured departures—136136
ThursdayFewer than 200 measured departures—166166
FridayFewer than 200 measured departures—170172
SaturdayFewer than 200 measured departures—177178
SundayFewer than 200 measured departures—179180

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 · 46 · 46 recorded · 44 measured · Source: the US BTS Feb · 72 · 72 recorded · 72 measured · Source: the US BTS Mar · 116 · 116 recorded · 116 measured · Source: the US BTS Apr · 120 · 120 recorded · 120 measured · Source: the US BTS May · 124 · 124 recorded · 123 measured · Source: the US BTS Jun · 120 · 120 recorded · 119 measured · Source: the US BTS Jul · 124 · 124 recorded · 124 measured · Source: the US BTS Aug · 62 · 62 recorded · 62 measured · Source: the US BTS Sep · 60 · 60 recorded · 60 measured · Source: the US BTS Oct · 100 · 100 recorded · 100 measured · Source: the US BTS Nov · 100 · 100 recorded · 100 measured · Source: the US BTS Dec · 96 · 96 recorded · 96 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—4446
FebFewer than 200 measured departures—7272
MarFewer than 200 measured departures—116116
AprFewer than 200 measured departures—120120
MayFewer than 200 measured departures—123124
JunFewer than 200 measured departures—119120
JulFewer than 200 measured departures—124124
AugFewer than 200 measured departures—6262
SepFewer than 200 measured departures—6060
OctFewer than 200 measured departures—100100
NovFewer than 200 measured departures—100100
DecFewer than 200 measured departures—9696

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 72.4% 825
  • Delayed >15 min 27.3% 311
  • Cancelled 0.4% 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

18
18 of 18
Flight numbersBy direction DeparturesOn time
WN103 BNA → ONT 58 79.3%
WN1036 ONT → BNA 58 72.4%
WN1255 BNA → ONT 58 77.2%
WN1374 ONT → BNA 58 87.9%
WN1513 ONT → BNA 58 94.8%
WN2145 BNA → ONT 57 59.7%
WN582 BNA → ONT 53 84.9%
WN1194 ONT → BNA 52 71.2%
WN1315 ONT → BNA 51 74.5%
WN855 BNA → ONT 50 36.0%
WN276 BNA → ONT 46 60.9%
WN3142 ONT → BNA 42 82.9%
WN236 ONT → BNA 41 87.8%
WN2961 BNA → ONT 34 35.3%
WN1058 BNA → ONT 33 54.6%
WN3201 ONT → BNA 33 87.9%
WN1297 BNA → ONT 31 48.4%
WN3324 ONT → BNA 31 80.7%

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 62 +0.0% 0 53.2%
June 2026 59 −1.7% 1 59.3%
May 2026 62 +1.6% 0 62.9%
April 2026 60 +0.0% 0 68.3%
March 2026 58 +0.0% 0 70.7%
February 2026 38 +11.8% 0 81.6%
January 2026 26 +44.4% 2 76.9%
December 2025 62 +82.4% 0 64.5%
November 2025 58 +38.1% 0 86.2%
October 2025 62 +63.2% 0 66.1%
September 2025 60 0 81.7%
August 2025 62 0 80.6%
July 2025 62 0 61.3%
June 2025 60 0 61.7%
May 2025 61 1 82.0%
April 2025 60 0 86.7%
March 2025 58 0 74.1%
February 2025 34 0 79.4%
January 2025 18 0 72.2%
December 2024 34 0 85.3%
November 2024 42 0 78.6%
October 2024 38 0 86.8%

How to read this chart

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