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317 km · Domestic

Harry Reid (LAS) – Ontario (ONT)

In July 2026, 420 flights operated between Harry Reid and Ontario (both directions), and 69.5% 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
January437421▼ 3.7%
February379383▲ 1.1%
March435394▼ 9.4%
April443404▼ 8.8%
May445398▼ 10.6%
June419409▼ 2.4%
July427420▼ 1.6%
August403––
September402––
October455–in progress
November413––
December409––
Year to date (Jan–Jul)2,9852,829▼ 5.2%

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
January81.5%82.7%▲ 1.5%
February81.0%79.9%▼ 1.4%
March78.6%75.4%▼ 4.1%
April81.3%75.5%▼ 7.1%
May76.4%68.1%▼ 10.9%
June70.2%63.3%▼ 9.8%
July71.4%69.5%▼ 2.7%
August76.9%––
September78.4%––
October73.0%–in progress
November74.3%––
December74.6%––
Year-to-date average (Jan–Jul)77.2%73.5%▼ 4.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January64▼ 33.3%
February31▼ 66.7%
March30▼ 100.0%
April20▼ 100.0%
May21▼ 50.0%
June330.0%
July45▲ 25.0%
August3––
September0––
October1–in progress
November19––
December4––
Year to date (Jan–Jul)2314▼ 39.1%

Airlines on this route

  1. Southwest Airlines 69.9%
  2. Frontier Airlines 30.1%

Oct 1, 2024 – Jul 31, 2026

By direction

LAS → ONT

Scheduled flights
4,617
Flights operated
4,589
Cancelled
28 · 0.6%
On-time departures
74.6%

ONT → LAS

Scheduled flights
4,621
Flights operated
4,585
Cancelled
36 · 0.8%
On-time departures
78.5%

LAS → ONT and ONT → LAS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 6,459 69.9% 74.9% 38
Frontier Airlines F9 2,779 30.1% 80.3% 26

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 delay06:00–07:000.2min · 627 recorded · 622 measured
Gap to highest-delay hour30.7min06:00 ↔ 22:00
Recorded flights9,238LAS–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 · 95.7% · 401 recorded · 399 measured · Source: the US BTS 06:00 · 94.9% · 627 recorded · 622 measured · Source: the US BTS 07:00 · 91.6% · 469 recorded · 466 measured · Source: the US BTS 08:00 · 92.2% · 638 recorded · 631 measured · Source: the US BTS 09:00 · 86.3% · 449 recorded · 446 measured · Source: the US BTS 10:00 · 83.3% · 484 recorded · 480 measured · Source: the US BTS 11:00 · 79.7% · 469 recorded · 468 measured · Source: the US BTS 12:00 · 78.7% · 528 recorded · 526 measured · Source: the US BTS 13:00 · 72.8% · 508 recorded · 508 measured · Source: the US BTS 14:00 · 70.8% · 598 recorded · 592 measured · Source: the US BTS 15:00 · 72.8% · 605 recorded · 600 measured · Source: the US BTS 16:00 · 66.2% · 463 recorded · 462 measured · Source: the US BTS 17:00 · 63.5% · 415 recorded · 411 measured · Source: the US BTS 18:00 · 69.7% · 417 recorded · 413 measured · Source: the US BTS 19:00 · 67.0% · 607 recorded · 600 measured · Source: the US BTS 20:00 · 70.3% · 609 recorded · 605 measured · Source: the US BTS 21:00 · 62.2% · 533 recorded · 529 measured · Source: the US BTS 22:00 · 55.8% · 409 recorded · 407 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 9 recorded · 9 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 · 1.1 min · 401 recorded · 399 measured · Source: the US BTS 06:00 · 0.2 min · 627 recorded · 622 measured · Source: the US BTS 07:00 · 1.6 min · 469 recorded · 466 measured · Source: the US BTS 08:00 · 1.8 min · 638 recorded · 631 measured · Source: the US BTS 09:00 · 5.4 min · 449 recorded · 446 measured · Source: the US BTS 10:00 · 7.4 min · 484 recorded · 480 measured · Source: the US BTS 11:00 · 10.3 min · 469 recorded · 468 measured · Source: the US BTS 12:00 · 9.1 min · 528 recorded · 526 measured · Source: the US BTS 13:00 · 14.2 min · 508 recorded · 508 measured · Source: the US BTS 14:00 · 21.2 min · 598 recorded · 592 measured · Source: the US BTS 15:00 · 17.2 min · 605 recorded · 600 measured · Source: the US BTS 16:00 · 16.7 min · 463 recorded · 462 measured · Source: the US BTS 17:00 · 22.3 min · 415 recorded · 411 measured · Source: the US BTS 18:00 · 19.1 min · 417 recorded · 413 measured · Source: the US BTS 19:00 · 17.8 min · 607 recorded · 600 measured · Source: the US BTS 20:00 · 16.6 min · 609 recorded · 605 measured · Source: the US BTS 21:00 · 19.0 min · 533 recorded · 529 measured · Source: the US BTS 22:00 · 30.8 min · 409 recorded · 407 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 9 recorded · 9 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 · 401 · 401 recorded · 399 measured · Source: the US BTS 06:00 · 627 · 627 recorded · 622 measured · Source: the US BTS 07:00 · 469 · 469 recorded · 466 measured · Source: the US BTS 08:00 · 638 · 638 recorded · 631 measured · Source: the US BTS 09:00 · 449 · 449 recorded · 446 measured · Source: the US BTS 10:00 · 484 · 484 recorded · 480 measured · Source: the US BTS 11:00 · 469 · 469 recorded · 468 measured · Source: the US BTS 12:00 · 528 · 528 recorded · 526 measured · Source: the US BTS 13:00 · 508 · 508 recorded · 508 measured · Source: the US BTS 14:00 · 598 · 598 recorded · 592 measured · Source: the US BTS 15:00 · 605 · 605 recorded · 600 measured · Source: the US BTS 16:00 · 463 · 463 recorded · 462 measured · Source: the US BTS 17:00 · 415 · 415 recorded · 411 measured · Source: the US BTS 18:00 · 417 · 417 recorded · 413 measured · Source: the US BTS 19:00 · 607 · 607 recorded · 600 measured · Source: the US BTS 20:00 · 609 · 609 recorded · 605 measured · Source: the US BTS 21:00 · 533 · 533 recorded · 529 measured · Source: the US BTS 22:00 · 409 · 409 recorded · 407 measured · Source: the US BTS 23:00 · 9 · 9 recorded · 9 measured · Source: the US BTS

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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———
05:0095.7%1.1 min399401
06:0094.9%0.2 min622627
07:0091.6%1.6 min466469
08:0092.2%1.8 min631638
09:0086.3%5.4 min446449
10:0083.3%7.4 min480484
11:0079.7%10.3 min468469
12:0078.7%9.1 min526528
13:0072.8%14.2 min508508
14:0070.8%21.2 min592598
15:0072.8%17.2 min600605
16:0066.2%16.7 min462463
17:0063.5%22.3 min411415
18:0069.7%19.1 min413417
19:0067.0%17.8 min600607
20:0070.3%16.6 min605609
21:0062.2%19.0 min529533
22:0055.8%30.8 min407409
23:00Fewer than 200 measured departures—99

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 72.4% · 1,481 recorded · 1,472 measured · Source: the US BTS Tuesday · 81.1% · 1,171 recorded · 1,164 measured · Source: the US BTS Wednesday · 82.3% · 1,218 recorded · 1,212 measured · Source: the US BTS Thursday · 73.8% · 1,445 recorded · 1,433 measured · Source: the US BTS Friday · 71.8% · 1,471 recorded · 1,463 measured · Source: the US BTS Saturday · 82.8% · 1,036 recorded · 1,027 measured · Source: the US BTS Sunday · 75.2% · 1,416 recorded · 1,403 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
Monday · 18.3 min · 1,481 recorded · 1,472 measured · Source: the US BTS Tuesday · 10.8 min · 1,171 recorded · 1,164 measured · Source: the US BTS Wednesday · 7.4 min · 1,218 recorded · 1,212 measured · Source: the US BTS Thursday · 15.2 min · 1,445 recorded · 1,433 measured · Source: the US BTS Friday · 14.7 min · 1,471 recorded · 1,463 measured · Source: the US BTS Saturday · 7.0 min · 1,036 recorded · 1,027 measured · Source: the US BTS Sunday · 12.4 min · 1,416 recorded · 1,403 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
Monday · 1,481 · 1,481 recorded · 1,472 measured · Source: the US BTS Tuesday · 1,171 · 1,171 recorded · 1,164 measured · Source: the US BTS Wednesday · 1,218 · 1,218 recorded · 1,212 measured · Source: the US BTS Thursday · 1,445 · 1,445 recorded · 1,433 measured · Source: the US BTS Friday · 1,471 · 1,471 recorded · 1,463 measured · Source: the US BTS Saturday · 1,036 · 1,036 recorded · 1,027 measured · Source: the US BTS Sunday · 1,416 · 1,416 recorded · 1,403 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday72.4%18.3 min1,4721,481
Tuesday81.1%10.8 min1,1641,171
Wednesday82.3%7.4 min1,2121,218
Thursday73.8%15.2 min1,4331,445
Friday71.8%14.7 min1,4631,471
Saturday82.8%7.0 min1,0271,036
Sunday75.2%12.4 min1,4031,416

Month of year

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

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 82.1% · 868 recorded · 858 measured · Source: the US BTS Feb · 80.5% · 766 recorded · 762 measured · Source: the US BTS Mar · 77.1% · 832 recorded · 829 measured · Source: the US BTS Apr · 78.5% · 849 recorded · 847 measured · Source: the US BTS May · 72.5% · 846 recorded · 843 measured · Source: the US BTS Jun · 66.8% · 834 recorded · 828 measured · Source: the US BTS Jul · 70.5% · 856 recorded · 847 measured · Source: the US BTS Aug · 76.9% · 406 recorded · 403 measured · Source: the US BTS Sep · 78.4% · 402 recorded · 402 measured · Source: the US BTS Oct · 76.8% · 798 recorded · 797 measured · Source: the US BTS Nov · 80.2% · 917 recorded · 898 measured · Source: the US BTS Dec · 79.4% · 864 recorded · 860 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 9.7 min · 868 recorded · 858 measured · Source: the US BTS Feb · 10.9 min · 766 recorded · 762 measured · Source: the US BTS Mar · 11.0 min · 832 recorded · 829 measured · Source: the US BTS Apr · 12.7 min · 849 recorded · 847 measured · Source: the US BTS May · 14.9 min · 846 recorded · 843 measured · Source: the US BTS Jun · 21.3 min · 834 recorded · 828 measured · Source: the US BTS Jul · 17.8 min · 856 recorded · 847 measured · Source: the US BTS Aug · 12.5 min · 406 recorded · 403 measured · Source: the US BTS Sep · 12.9 min · 402 recorded · 402 measured · Source: the US BTS Oct · 9.1 min · 798 recorded · 797 measured · Source: the US BTS Nov · 9.7 min · 917 recorded · 898 measured · Source: the US BTS Dec · 9.7 min · 864 recorded · 860 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
Jan · 868 · 868 recorded · 858 measured · Source: the US BTS Feb · 766 · 766 recorded · 762 measured · Source: the US BTS Mar · 832 · 832 recorded · 829 measured · Source: the US BTS Apr · 849 · 849 recorded · 847 measured · Source: the US BTS May · 846 · 846 recorded · 843 measured · Source: the US BTS Jun · 834 · 834 recorded · 828 measured · Source: the US BTS Jul · 856 · 856 recorded · 847 measured · Source: the US BTS Aug · 406 · 406 recorded · 403 measured · Source: the US BTS Sep · 402 · 402 recorded · 402 measured · Source: the US BTS Oct · 798 · 798 recorded · 797 measured · Source: the US BTS Nov · 917 · 917 recorded · 898 measured · Source: the US BTS Dec · 864 · 864 recorded · 860 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.1%9.7 min858868
Feb80.5%10.9 min762766
Mar77.1%11.0 min829832
Apr78.5%12.7 min847849
May72.5%14.9 min843846
Jun66.8%21.3 min828834
Jul70.5%17.8 min847856
Aug76.9%12.5 min403406
Sep78.4%12.9 min402402
Oct76.8%9.1 min797798
Nov80.2%9.7 min898917
Dec79.4%9.7 min860864

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 76.0% 7,022
  • Delayed >15 min 23.3% 2,152
  • Cancelled 0.7% 64
  • 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

85
85 of 85
Flight numbersBy direction DeparturesOn time
F992232 ONT → LAS 512 83.5%
F991357 LAS → ONT 444 82.1%
F992231 LAS → ONT 409 75.3%
F991358 ONT → LAS 318 79.9%
F991283 LAS → ONT 297 88.1%
F994758 ONT → LAS 290 69.6%
F994206 ONT → LAS 251 78.0%
WN576 ONT → LAS 120 99.2%
F994757 LAS → ONT 116 89.7%
WN4149 LAS → ONT 93 85.7%
F994205 LAS → ONT 92 78.3%
WN443 LAS → ONT 91 98.9%
WN1400 LAS → ONT 84 86.9%
WN3068 ONT → LAS 79 76.0%
WN101 ONT → LAS 75 86.3%
WN3117 LAS → ONT 74 64.9%
WN3054 LAS → ONT 70 81.4%
WN1676 LAS → ONT 64 90.6%
WN3979 ONT → LAS 64 91.9%
WN3150 ONT → LAS 59 94.9%
WN2194 LAS → ONT 58 82.8%
WN2244 ONT → LAS 58 65.5%
WN3341 LAS → ONT 58 93.1%
WN4667 ONT → LAS 58 82.8%
WN680 LAS → ONT 58 56.9%
WN2410 ONT → LAS 57 87.7%
WN3021 LAS → ONT 57 66.7%
WN3075 ONT → LAS 57 35.1%
WN322 ONT → LAS 57 89.5%
WN533 ONT → LAS 56 89.3%
WN3765 ONT → LAS 54 94.4%
WN4394 ONT → LAS 53 86.8%
WN3288 ONT → LAS 52 65.4%
WN3328 LAS → ONT 51 76.5%
WN1316 ONT → LAS 50 70.0%
WN2213 ONT → LAS 50 24.0%
WN2298 LAS → ONT 50 76.0%
WN2694 LAS → ONT 50 68.0%
WN3216 ONT → LAS 50 94.0%
WN4576 ONT → LAS 50 48.0%
WN156 ONT → LAS 45 64.3%
WN2338 ONT → LAS 45 95.6%
WN3234 LAS → ONT 45 73.8%
WN948 LAS → ONT 45 74.4%
WN1070 ONT → LAS 44 79.6%
WN1780 LAS → ONT 43 92.9%
WN2214 LAS → ONT 43 52.4%
WN2511 ONT → LAS 43 48.8%
WN1370 LAS → ONT 42 97.6%
WN1435 ONT → LAS 42 68.3%
WN169 LAS → ONT 42 78.6%
WN3255 LAS → ONT 42 76.2%
WN372 ONT → LAS 42 52.4%
WN3845 LAS → ONT 42 47.6%
WN551 LAS → ONT 42 45.2%
WN924 ONT → LAS 42 83.3%
WN2333 ONT → LAS 41 82.5%
WN3185 LAS → ONT 41 80.0%
WN3412 LAS → ONT 41 87.2%
WN447 ONT → LAS 41 65.9%
WN3595 ONT → LAS 40 67.5%
WN1695 ONT → LAS 39 97.4%
WN2334 LAS → ONT 38 79.0%
WN2191 ONT → LAS 37 97.3%
WN1786 ONT → LAS 36 91.7%
WN105 ONT → LAS 35 55.9%
WN1469 LAS → ONT 34 76.5%
WN2665 LAS → ONT 34 79.4%
WN4445 LAS → ONT 34 82.4%
WN747 ONT → LAS 34 91.2%
WN1142 ONT → LAS 33 60.6%
WN1471 LAS → ONT 33 84.4%
WN2699 ONT → LAS 33 87.5%
WN3229 LAS → ONT 33 84.9%
WN3269 ONT → LAS 33 66.7%
WN4072 ONT → LAS 33 87.9%
WN4179 LAS → ONT 33 72.7%
WN1914 ONT → LAS 32 68.8%
WN2471 ONT → LAS 32 62.5%
WN2977 LAS → ONT 32 56.3%
WN2570 LAS → ONT 31 87.1%
WN3602 LAS → ONT 31 61.3%
WN4852 ONT → LAS 31 96.8%
WN103 ONT → LAS 30 83.3%
WN235 ONT → LAS 30 50.0%

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 420 −1.6% 5 69.5%
June 2026 409 −2.4% 3 63.3%
May 2026 398 −10.6% 1 68.1%
April 2026 404 −8.8% 0 75.5%
March 2026 394 −9.4% 0 75.4%
February 2026 383 +1.1% 1 79.9%
January 2026 421 −3.7% 4 82.7%
December 2025 409 −9.3% 4 74.6%
November 2025 413 −14.8% 19 74.3%
October 2025 455 +33.0% 1 73.0%
September 2025 402 0 78.4%
August 2025 403 3 76.9%
July 2025 427 4 71.4%
June 2025 419 3 70.2%
May 2025 445 2 76.4%
April 2025 443 2 81.3%
March 2025 435 3 78.6%
February 2025 379 3 81.0%
January 2025 437 6 81.5%
December 2024 451 0 83.8%
November 2024 485 0 85.2%
October 2024 342 0 81.9%

How to read this chart

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