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293 km · Domestic

Washington Dulles (IAD) – Pittsburgh (PIT)

In July 2026, 161 flights operated between Washington Dulles and Pittsburgh (both directions), and 80.1% 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
January118213▲ 80.5%
February121206▲ 70.2%
March91228▲ 150.5%
April258192▼ 25.6%
May220174▼ 20.9%
June197171▼ 13.2%
July241161▼ 33.2%
August209––
September222––
October222–in progress
November215––
December204––
Year to date (Jan–Jul)1,2461,345▲ 7.9%

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
January84.7%91.5%▲ 8.0%
February90.9%92.2%▲ 1.4%
March92.3%82.5%▼ 10.6%
April93.0%96.9%▲ 4.2%
May87.3%92.0%▲ 5.4%
June76.6%83.6%▲ 9.1%
July83.0%80.1%▼ 3.5%
August89.5%––
September93.2%––
October94.1%–in progress
November89.3%––
December86.8%––
Year-to-date average (Jan–Jul)86.8%88.4%▲ 1.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January612▲ 100.0%
February220.0%
March01–
April00–
May12▲ 100.0%
June21▼ 50.0%
July1715▼ 11.8%
August1––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)2833▲ 17.9%

Airlines on this route

  1. Republic Airways 73.3%
  2. United Airlines 26.7%

Oct 1, 2024 – Jul 31, 2026

By direction

IAD → PIT

Scheduled flights
2,052
Flights operated
2,016
Cancelled
36 · 1.8%
On-time departures
85.9%

PIT → IAD

Scheduled flights
2,046
Flights operated
2,019
Cancelled
27 · 1.3%
On-time departures
91.4%

IAD → PIT and PIT → IAD counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Republic Airways YX 3,004 73.3% 88.1% 53
United Airlines UA 1,094 26.7% 90.1% 10

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 delay06:00–07:00-3.9min · 651 recorded · 646 measured
Gap to highest-delay hour17.1min06:00 ↔ 22:00
Recorded flights4,098IAD–PIT

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 · 97.1% · 651 recorded · 646 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 96.0% · 300 recorded · 297 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 94.3% · 302 recorded · 300 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 88.7% · 483 recorded · 477 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 150 recorded · 149 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 173 recorded · 172 measured · Source: the US BTS 15:00 · 88.6% · 462 recorded · 456 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 82.3% · 544 recorded · 531 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 161 recorded · 154 measured · Source: the US BTS 20:00 · 87.3% · 298 recorded · 292 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 80.9% · 574 recorded · 561 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 · -3.9 min · 651 recorded · 646 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · -2.6 min · 300 recorded · 297 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · -1.4 min · 302 recorded · 300 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 6.9 min · 483 recorded · 477 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 150 recorded · 149 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 173 recorded · 172 measured · Source: the US BTS 15:00 · 6.7 min · 462 recorded · 456 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 10.1 min · 544 recorded · 531 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 161 recorded · 154 measured · Source: the US BTS 20:00 · 0.5 min · 298 recorded · 292 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 13.2 min · 574 recorded · 561 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 · 651 · 651 recorded · 646 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 300 · 300 recorded · 297 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 302 · 302 recorded · 300 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 483 · 483 recorded · 477 measured · Source: the US BTS 13:00 · 150 · 150 recorded · 149 measured · Source: the US BTS 14:00 · 173 · 173 recorded · 172 measured · Source: the US BTS 15:00 · 462 · 462 recorded · 456 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 544 · 544 recorded · 531 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · 161 · 161 recorded · 154 measured · Source: the US BTS 20:00 · 298 · 298 recorded · 292 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 574 · 574 recorded · 561 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 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———
05:00No observations———
06:0097.1%-3.9 min646651
07:00No observations———
08:0096.0%-2.6 min297300
09:00No observations———
10:0094.3%-1.4 min300302
11:00No observations———
12:0088.7%6.9 min477483
13:00Fewer than 200 measured departures—149150
14:00Fewer than 200 measured departures—172173
15:0088.6%6.7 min456462
16:00No observations———
17:0082.3%10.1 min531544
18:00No observations———
19:00Fewer than 200 measured departures—154161
20:0087.3%0.5 min292298
21:00No observations———
22:0080.9%13.2 min561574
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 89.1% · 624 recorded · 608 measured · Source: the US BTS Tuesday · 90.1% · 606 recorded · 596 measured · Source: the US BTS Wednesday · 88.8% · 628 recorded · 623 measured · Source: the US BTS Thursday · 90.1% · 634 recorded · 628 measured · Source: the US BTS Friday · 86.4% · 612 recorded · 611 measured · Source: the US BTS Saturday · 90.6% · 409 recorded · 403 measured · Source: the US BTS Sunday · 85.7% · 585 recorded · 566 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 · 3.7 min · 624 recorded · 608 measured · Source: the US BTS Tuesday · 1.0 min · 606 recorded · 596 measured · Source: the US BTS Wednesday · 4.4 min · 628 recorded · 623 measured · Source: the US BTS Thursday · 3.6 min · 634 recorded · 628 measured · Source: the US BTS Friday · 6.8 min · 612 recorded · 611 measured · Source: the US BTS Saturday · 2.9 min · 409 recorded · 403 measured · Source: the US BTS Sunday · 9.2 min · 585 recorded · 566 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 · 624 · 624 recorded · 608 measured · Source: the US BTS Tuesday · 606 · 606 recorded · 596 measured · Source: the US BTS Wednesday · 628 · 628 recorded · 623 measured · Source: the US BTS Thursday · 634 · 634 recorded · 628 measured · Source: the US BTS Friday · 612 · 612 recorded · 611 measured · Source: the US BTS Saturday · 409 · 409 recorded · 403 measured · Source: the US BTS Sunday · 585 · 585 recorded · 566 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday89.1%3.7 min608624
Tuesday90.1%1.0 min596606
Wednesday88.8%4.4 min623628
Thursday90.1%3.6 min628634
Friday86.4%6.8 min611612
Saturday90.6%2.9 min403409
Sunday85.7%9.2 min566585

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 · 89.1% · 349 recorded · 331 measured · Source: the US BTS Feb · 91.7% · 331 recorded · 327 measured · Source: the US BTS Mar · 85.3% · 320 recorded · 319 measured · Source: the US BTS Apr · 94.7% · 450 recorded · 450 measured · Source: the US BTS May · 89.3% · 397 recorded · 394 measured · Source: the US BTS Jun · 79.9% · 371 recorded · 368 measured · Source: the US BTS Jul · 81.8% · 434 recorded · 402 measured · Source: the US BTS Aug · 89.5% · 210 recorded · 209 measured · Source: the US BTS Sep · 93.2% · 222 recorded · 222 measured · Source: the US BTS Oct · 92.2% · 306 recorded · 306 measured · Source: the US BTS Nov · 92.3% · 378 recorded · 377 measured · Source: the US BTS Dec · 86.1% · 330 recorded · 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
Jan · 4.2 min · 349 recorded · 331 measured · Source: the US BTS Feb · 0.6 min · 331 recorded · 327 measured · Source: the US BTS Mar · 12.2 min · 320 recorded · 319 measured · Source: the US BTS Apr · -3.0 min · 450 recorded · 450 measured · Source: the US BTS May · 4.9 min · 397 recorded · 394 measured · Source: the US BTS Jun · 13.7 min · 371 recorded · 368 measured · Source: the US BTS Jul · 14.9 min · 434 recorded · 402 measured · Source: the US BTS Aug · 1.7 min · 210 recorded · 209 measured · Source: the US BTS Sep · -1.4 min · 222 recorded · 222 measured · Source: the US BTS Oct · -1.2 min · 306 recorded · 306 measured · Source: the US BTS Nov · -1.3 min · 378 recorded · 377 measured · Source: the US BTS Dec · 6.6 min · 330 recorded · 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
Jan · 349 · 349 recorded · 331 measured · Source: the US BTS Feb · 331 · 331 recorded · 327 measured · Source: the US BTS Mar · 320 · 320 recorded · 319 measured · Source: the US BTS Apr · 450 · 450 recorded · 450 measured · Source: the US BTS May · 397 · 397 recorded · 394 measured · Source: the US BTS Jun · 371 · 371 recorded · 368 measured · Source: the US BTS Jul · 434 · 434 recorded · 402 measured · Source: the US BTS Aug · 210 · 210 recorded · 209 measured · Source: the US BTS Sep · 222 · 222 recorded · 222 measured · Source: the US BTS Oct · 306 · 306 recorded · 306 measured · Source: the US BTS Nov · 378 · 378 recorded · 377 measured · Source: the US BTS Dec · 330 · 330 recorded · 330 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan89.1%4.2 min331349
Feb91.7%0.6 min327331
Mar85.3%12.2 min319320
Apr94.7%-3.0 min450450
May89.3%4.9 min394397
Jun79.9%13.7 min368371
Jul81.8%14.9 min402434
Aug89.5%1.7 min209210
Sep93.2%-1.4 min222222
Oct92.2%-1.2 min306306
Nov92.3%-1.3 min377378
Dec86.1%6.6 min330330

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 87.3% 3,576
  • Delayed >15 min 11.2% 459
  • Cancelled 1.5% 63
  • 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

34
34 of 34
Flight numbersBy direction DeparturesOn time
YX3679 PIT → IAD 651 97.1%
YX3540 IAD → PIT 544 80.8%
YX3579 PIT → IAD 373 87.3%
YX3541 IAD → PIT 347 88.1%
UA726 IAD → PIT 146 95.2%
UA2066 IAD → PIT 78 93.5%
YX3449 PIT → IAD 71 76.9%
YX3579 IAD → PIT 71 79.1%
UA1922 PIT → IAD 65 92.3%
UA543 IAD → PIT 65 90.8%
UA2607 PIT → IAD 62 85.3%
UA1697 PIT → IAD 57 92.9%
UA1430 PIT → IAD 53 98.1%
UA1689 PIT → IAD 53 96.2%
UA1734 IAD → PIT 52 100.0%
YX3476 IAD → PIT 49 79.2%
UA1497 PIT → IAD 47 93.6%
UA2070 IAD → PIT 45 84.4%
YX3578 IAD → PIT 42 85.4%
YX3436 IAD → PIT 37 91.7%
YX3562 IAD → PIT 36 56.3%
YX3614 PIT → IAD 36 71.9%
YX3588 PIT → IAD 35 97.1%
YX3706 IAD → PIT 35 80.0%
UA1728 PIT → IAD 32 87.1%
UA744 IAD → PIT 32 83.9%
YX3501 IAD → PIT 32 84.4%
YX3639 PIT → IAD 32 84.4%
UA2000 PIT → IAD 31 80.7%
UA765 IAD → PIT 31 77.4%
YX3450 IAD → PIT 30 76.7%
YX3478 PIT → IAD 30 89.7%
YX3494 PIT → IAD 30 83.3%
YX3558 IAD → PIT 30 82.8%

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 161 −33.2% 15 80.1%
June 2026 171 −13.2% 1 83.6%
May 2026 174 −20.9% 2 92.0%
April 2026 192 −25.6% 0 96.9%
March 2026 228 +150.5% 1 82.5%
February 2026 206 +70.2% 2 92.2%
January 2026 213 +80.5% 12 91.5%
December 2025 204 +61.9% 0 86.8%
November 2025 215 +32.7% 1 89.3%
October 2025 222 +164.3% 0 94.1%
September 2025 222 0 93.2%
August 2025 209 1 89.5%
July 2025 241 17 83.0%
June 2025 197 2 76.6%
May 2025 220 1 87.3%
April 2025 258 0 93.0%
March 2025 91 0 92.3%
February 2025 121 2 90.9%
January 2025 118 6 84.7%
December 2024 126 0 84.9%
November 2024 162 0 96.3%
October 2024 84 0 86.9%

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