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3,674 km · Domestic

Washington Dulles (IAD) – Los Angeles (LAX)

In July 2026, 483 flights operated between Washington Dulles and Los Angeles (both directions), and 81.6% 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
January316333▲ 5.4%
February286316▲ 10.5%
March410368▼ 10.2%
April484448▼ 7.4%
May507503▼ 0.8%
June454501▲ 10.4%
July438483▲ 10.3%
August392––
September346––
October401–in progress
November395––
December427––
Year to date (Jan–Jul)2,8952,952▲ 2.0%

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
January80.1%78.7%▼ 1.7%
February86.7%84.8%▼ 2.2%
March88.0%75.5%▼ 14.2%
April91.7%88.4%▼ 3.6%
May87.2%89.5%▲ 2.6%
June79.1%88.4%▲ 11.8%
July69.2%81.6%▲ 17.9%
August84.2%––
September93.9%––
October90.8%–in progress
November85.1%––
December86.7%––
Year-to-date average (Jan–Jul)83.1%83.8%▲ 0.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January515▲ 200.0%
February30▼ 100.0%
March00–
April01–
May01–
June05–
July70▼ 100.0%
August2––
September2––
October3–in progress
November1––
December3––
Year to date (Jan–Jul)1522▲ 46.7%

Airlines on this route

  1. United Airlines 91.7%
  2. Alaska Airlines 5.8%
  3. American Airlines 2.5%

Oct 1, 2024 – Jul 31, 2026

By direction

IAD → LAX

Scheduled flights
4,541
Flights operated
4,512
Cancelled
29 · 0.6%
On-time departures
83.3%

LAX → IAD

Scheduled flights
4,543
Flights operated
4,519
Cancelled
24 · 0.5%
On-time departures
86.7%

IAD → LAX and LAX → IAD counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 8,326 91.7% 85.5% 53
Alaska Airlines AS 527 5.8% 80.5% 0
American Airlines AA 231 2.5% 78.8% 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 delay07:00–08:00-3.3min · 221 recorded · 221 measured
Gap to highest-delay hour35.1min07:00 ↔ 17:00
Recorded flights9,084IAD–LAX

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · Fewer than 200 measured departures · 18 recorded · 18 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 · 93.0% · 558 recorded · 555 measured · Source: the US BTS 07:00 · 96.8% · 221 recorded · 221 measured · Source: the US BTS 08:00 · 86.0% · 1,410 recorded · 1,395 measured · Source: the US BTS 09:00 · 91.1% · 328 recorded · 325 measured · Source: the US BTS 10:00 · 89.9% · 553 recorded · 552 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 92 recorded · 92 measured · Source: the US BTS 12:00 · 90.1% · 834 recorded · 831 measured · Source: the US BTS 13:00 · 86.0% · 558 recorded · 556 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 36 recorded · 36 measured · Source: the US BTS 15:00 · 80.3% · 325 recorded · 324 measured · Source: the US BTS 16:00 · 90.4% · 438 recorded · 437 measured · Source: the US BTS 17:00 · 68.7% · 628 recorded · 623 measured · Source: the US BTS 18:00 · 73.5% · 322 recorded · 317 measured · Source: the US BTS 19:00 · 82.3% · 265 recorded · 265 measured · Source: the US BTS 20:00 · 72.6% · 359 recorded · 358 measured · Source: the US BTS 21:00 · 88.5% · 544 recorded · 541 measured · Source: the US BTS 22:00 · 82.9% · 931 recorded · 925 measured · Source: the US BTS 23:00 · 85.8% · 664 recorded · 660 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 · Fewer than 200 measured departures · 18 recorded · 18 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 · 0.6 min · 558 recorded · 555 measured · Source: the US BTS 07:00 · -3.3 min · 221 recorded · 221 measured · Source: the US BTS 08:00 · 6.4 min · 1,410 recorded · 1,395 measured · Source: the US BTS 09:00 · 7.7 min · 328 recorded · 325 measured · Source: the US BTS 10:00 · 4.3 min · 553 recorded · 552 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 92 recorded · 92 measured · Source: the US BTS 12:00 · 4.0 min · 834 recorded · 831 measured · Source: the US BTS 13:00 · 9.1 min · 558 recorded · 556 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 36 recorded · 36 measured · Source: the US BTS 15:00 · 14.3 min · 325 recorded · 324 measured · Source: the US BTS 16:00 · 2.9 min · 438 recorded · 437 measured · Source: the US BTS 17:00 · 31.9 min · 628 recorded · 623 measured · Source: the US BTS 18:00 · 16.1 min · 322 recorded · 317 measured · Source: the US BTS 19:00 · 11.1 min · 265 recorded · 265 measured · Source: the US BTS 20:00 · 16.8 min · 359 recorded · 358 measured · Source: the US BTS 21:00 · 4.0 min · 544 recorded · 541 measured · Source: the US BTS 22:00 · 7.2 min · 931 recorded · 925 measured · Source: the US BTS 23:00 · 5.6 min · 664 recorded · 660 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 · 18 · 18 recorded · 18 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 · 558 · 558 recorded · 555 measured · Source: the US BTS 07:00 · 221 · 221 recorded · 221 measured · Source: the US BTS 08:00 · 1,410 · 1,410 recorded · 1,395 measured · Source: the US BTS 09:00 · 328 · 328 recorded · 325 measured · Source: the US BTS 10:00 · 553 · 553 recorded · 552 measured · Source: the US BTS 11:00 · 92 · 92 recorded · 92 measured · Source: the US BTS 12:00 · 834 · 834 recorded · 831 measured · Source: the US BTS 13:00 · 558 · 558 recorded · 556 measured · Source: the US BTS 14:00 · 36 · 36 recorded · 36 measured · Source: the US BTS 15:00 · 325 · 325 recorded · 324 measured · Source: the US BTS 16:00 · 438 · 438 recorded · 437 measured · Source: the US BTS 17:00 · 628 · 628 recorded · 623 measured · Source: the US BTS 18:00 · 322 · 322 recorded · 317 measured · Source: the US BTS 19:00 · 265 · 265 recorded · 265 measured · Source: the US BTS 20:00 · 359 · 359 recorded · 358 measured · Source: the US BTS 21:00 · 544 · 544 recorded · 541 measured · Source: the US BTS 22:00 · 931 · 931 recorded · 925 measured · Source: the US BTS 23:00 · 664 · 664 recorded · 660 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00Fewer than 200 measured departures—1818
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00No observations———
06:0093.0%0.6 min555558
07:0096.8%-3.3 min221221
08:0086.0%6.4 min1,3951,410
09:0091.1%7.7 min325328
10:0089.9%4.3 min552553
11:00Fewer than 200 measured departures—9292
12:0090.1%4.0 min831834
13:0086.0%9.1 min556558
14:00Fewer than 200 measured departures—3636
15:0080.3%14.3 min324325
16:0090.4%2.9 min437438
17:0068.7%31.9 min623628
18:0073.5%16.1 min317322
19:0082.3%11.1 min265265
20:0072.6%16.8 min358359
21:0088.5%4.0 min541544
22:0082.9%7.2 min925931
23:0085.8%5.6 min660664

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 85.7% · 1,343 recorded · 1,339 measured · Source: the US BTS Tuesday · 87.6% · 1,228 recorded · 1,226 measured · Source: the US BTS Wednesday · 86.7% · 1,260 recorded · 1,258 measured · Source: the US BTS Thursday · 84.5% · 1,368 recorded · 1,358 measured · Source: the US BTS Friday · 84.8% · 1,350 recorded · 1,340 measured · Source: the US BTS Saturday · 83.2% · 1,184 recorded · 1,180 measured · Source: the US BTS Sunday · 82.9% · 1,351 recorded · 1,330 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 · 8.4 min · 1,343 recorded · 1,339 measured · Source: the US BTS Tuesday · 6.0 min · 1,228 recorded · 1,226 measured · Source: the US BTS Wednesday · 7.3 min · 1,260 recorded · 1,258 measured · Source: the US BTS Thursday · 9.0 min · 1,368 recorded · 1,358 measured · Source: the US BTS Friday · 8.8 min · 1,350 recorded · 1,340 measured · Source: the US BTS Saturday · 8.6 min · 1,184 recorded · 1,180 measured · Source: the US BTS Sunday · 9.8 min · 1,351 recorded · 1,330 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 · 1,343 · 1,343 recorded · 1,339 measured · Source: the US BTS Tuesday · 1,228 · 1,228 recorded · 1,226 measured · Source: the US BTS Wednesday · 1,260 · 1,260 recorded · 1,258 measured · Source: the US BTS Thursday · 1,368 · 1,368 recorded · 1,358 measured · Source: the US BTS Friday · 1,350 · 1,350 recorded · 1,340 measured · Source: the US BTS Saturday · 1,184 · 1,184 recorded · 1,180 measured · Source: the US BTS Sunday · 1,351 · 1,351 recorded · 1,330 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday85.7%8.4 min1,3391,343
Tuesday87.6%6.0 min1,2261,228
Wednesday86.7%7.3 min1,2581,260
Thursday84.5%9.0 min1,3581,368
Friday84.8%8.8 min1,3401,350
Saturday83.2%8.6 min1,1801,184
Sunday82.9%9.8 min1,3301,351

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 · 79.4% · 669 recorded · 649 measured · Source: the US BTS Feb · 85.7% · 605 recorded · 602 measured · Source: the US BTS Mar · 82.1% · 778 recorded · 778 measured · Source: the US BTS Apr · 90.1% · 933 recorded · 932 measured · Source: the US BTS May · 88.3% · 1,011 recorded · 1,010 measured · Source: the US BTS Jun · 84.0% · 960 recorded · 955 measured · Source: the US BTS Jul · 75.7% · 928 recorded · 921 measured · Source: the US BTS Aug · 84.2% · 394 recorded · 392 measured · Source: the US BTS Sep · 93.9% · 348 recorded · 346 measured · Source: the US BTS Oct · 91.0% · 714 recorded · 711 measured · Source: the US BTS Nov · 87.9% · 854 recorded · 850 measured · Source: the US BTS Dec · 82.3% · 890 recorded · 885 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
Jan · 16.7 min · 669 recorded · 649 measured · Source: the US BTS Feb · 6.0 min · 605 recorded · 602 measured · Source: the US BTS Mar · 8.0 min · 778 recorded · 778 measured · Source: the US BTS Apr · 3.4 min · 933 recorded · 932 measured · Source: the US BTS May · 5.5 min · 1,011 recorded · 1,010 measured · Source: the US BTS Jun · 12.0 min · 960 recorded · 955 measured · Source: the US BTS Jul · 19.5 min · 928 recorded · 921 measured · Source: the US BTS Aug · 8.9 min · 394 recorded · 392 measured · Source: the US BTS Sep · 1.1 min · 348 recorded · 346 measured · Source: the US BTS Oct · 2.0 min · 714 recorded · 711 measured · Source: the US BTS Nov · 4.8 min · 854 recorded · 850 measured · Source: the US BTS Dec · 7.6 min · 890 recorded · 885 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 · 669 · 669 recorded · 649 measured · Source: the US BTS Feb · 605 · 605 recorded · 602 measured · Source: the US BTS Mar · 778 · 778 recorded · 778 measured · Source: the US BTS Apr · 933 · 933 recorded · 932 measured · Source: the US BTS May · 1,011 · 1,011 recorded · 1,010 measured · Source: the US BTS Jun · 960 · 960 recorded · 955 measured · Source: the US BTS Jul · 928 · 928 recorded · 921 measured · Source: the US BTS Aug · 394 · 394 recorded · 392 measured · Source: the US BTS Sep · 348 · 348 recorded · 346 measured · Source: the US BTS Oct · 714 · 714 recorded · 711 measured · Source: the US BTS Nov · 854 · 854 recorded · 850 measured · Source: the US BTS Dec · 890 · 890 recorded · 885 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan79.4%16.7 min649669
Feb85.7%6.0 min602605
Mar82.1%8.0 min778778
Apr90.1%3.4 min932933
May88.3%5.5 min1,0101,011
Jun84.0%12.0 min955960
Jul75.7%19.5 min921928
Aug84.2%8.9 min392394
Sep93.9%1.1 min346348
Oct91.0%2.0 min711714
Nov87.9%4.8 min850854
Dec82.3%7.6 min885890

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 84.5% 7,678
  • Delayed >15 min 14.9% 1,353
  • Cancelled 0.6% 53
  • 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

70
70 of 70
Flight numbersBy direction DeparturesOn time
UA2667 LAX → IAD 639 90.3%
UA1689 IAD → LAX 620 91.9%
UA1635 LAX → IAD 606 85.9%
UA2276 IAD → LAX 528 64.2%
UA1385 IAD → LAX 484 82.4%
UA2282 LAX → IAD 410 83.0%
UA1573 LAX → IAD 409 87.8%
UA1734 IAD → LAX 194 82.2%
UA2632 LAX → IAD 190 91.0%
UA2294 IAD → LAX 180 83.7%
UA1140 LAX → IAD 177 78.9%
UA2268 LAX → IAD 170 87.1%
UA1892 LAX → IAD 147 89.0%
AS310 LAX → IAD 137 93.4%
AS309 IAD → LAX 133 72.2%
UA667 IAD → LAX 124 92.7%
UA684 IAD → LAX 124 85.5%
UA418 LAX → IAD 122 89.3%
UA688 LAX → IAD 118 86.1%
UA1631 LAX → IAD 109 88.1%
UA2303 IAD → LAX 105 87.6%
AA3223 LAX → IAD 86 74.4%
UA2081 LAX → IAD 86 96.5%
UA1843 LAX → IAD 84 78.3%
UA1914 LAX → IAD 73 72.6%
UA1868 IAD → LAX 72 85.9%
UA325 IAD → LAX 71 95.8%
AS214 LAX → IAD 69 97.1%
AS213 IAD → LAX 68 30.9%
UA1101 IAD → LAX 64 65.6%
UA419 LAX → IAD 62 88.7%
UA413 IAD → LAX 55 81.8%
UA689 LAX → IAD 55 85.5%
UA2315 IAD → LAX 53 92.5%
UA1470 IAD → LAX 52 86.5%
UA1752 IAD → LAX 52 100.0%
UA1027 IAD → LAX 45 73.3%
UA754 IAD → LAX 45 95.6%
AA436 IAD → LAX 43 86.1%
AA1242 IAD → LAX 42 78.6%
UA251 LAX → IAD 39 97.4%
UA445 IAD → LAX 39 89.7%
UA1053 IAD → LAX 37 89.2%
UA1311 LAX → IAD 37 61.1%
UA1366 IAD → LAX 37 100.0%
UA1464 LAX → IAD 37 75.0%
UA1855 IAD → LAX 37 100.0%
UA1926 IAD → LAX 37 86.5%
UA2001 LAX → IAD 37 61.1%
UA2065 IAD → LAX 37 86.5%
UA2302 IAD → LAX 37 86.1%
UA659 IAD → LAX 37 77.8%
UA773 IAD → LAX 37 86.5%
UA2720 IAD → LAX 36 70.6%
UA2624 LAX → IAD 35 97.1%
UA1245 IAD → LAX 34 97.1%
AS214 IAD → LAX 33 97.0%
UA693 IAD → LAX 33 97.0%
UA1548 IAD → LAX 32 93.8%
UA1554 IAD → LAX 32 96.9%
UA1606 IAD → LAX 32 65.6%
UA2471 LAX → IAD 32 96.9%
UA2730 LAX → IAD 32 90.6%
UA797 IAD → LAX 32 78.1%
UA1071 LAX → IAD 31 93.6%
UA1990 IAD → LAX 31 96.8%
UA2372 LAX → IAD 31 96.8%
UA2655 IAD → LAX 31 96.7%
AA1225 IAD → LAX 30 76.7%
UA1981 LAX → IAD 30 90.0%

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 483 +10.3% 0 81.6%
June 2026 501 +10.4% 5 88.4%
May 2026 503 −0.8% 1 89.5%
April 2026 448 −7.4% 1 88.4%
March 2026 368 −10.2% 0 75.5%
February 2026 316 +10.5% 0 84.8%
January 2026 333 +5.4% 15 78.7%
December 2025 427 −6.8% 3 86.7%
November 2025 395 −13.2% 1 85.1%
October 2025 401 +29.4% 3 90.8%
September 2025 346 2 93.9%
August 2025 392 2 84.2%
July 2025 438 7 69.2%
June 2025 454 0 79.1%
May 2025 507 0 87.2%
April 2025 484 0 91.7%
March 2025 410 0 88.0%
February 2025 286 3 86.7%
January 2025 316 5 80.1%
December 2024 458 2 78.2%
November 2024 455 3 90.3%
October 2024 310 0 91.3%

How to read this chart

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