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368 km · Domestic

Washington Dulles (IAD) – LaGuardia (LGA)

In July 2026, 108 flights operated between Washington Dulles and LaGuardia (both directions), and 75.9% 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
January81150▲ 85.2%
February58134▲ 131.0%
March42164▲ 290.5%
April1641▲ 156.3%
May83186▲ 124.1%
June105114▲ 8.6%
July71108▲ 52.1%
August206––
September214––
October197–in progress
November149––
December204––
Year to date (Jan–Jul)456897▲ 96.7%

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
January87.7%86.0%▼ 1.9%
February75.9%85.1%▲ 12.1%
March83.3%70.7%▼ 15.1%
April93.8%82.9%▼ 11.6%
May81.9%82.8%▲ 1.1%
June67.6%74.6%▲ 10.4%
July70.4%75.9%▲ 7.8%
August85.4%––
September85.5%––
October82.7%–in progress
November78.5%––
December72.1%––
Year-to-date average (Jan–Jul)80.1%79.7%▼ 0.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January610▲ 66.7%
February012–
March027–
April00–
May06–
June136▼ 53.8%
July1516▲ 6.7%
August8––
September8––
October2–in progress
November26––
December10––
Year to date (Jan–Jul)3477▲ 126.5%

Airlines on this route

  1. Republic Airways 99.5%
  2. United Airlines 0.5%

Oct 1, 2024 – Jul 31, 2026

By direction

IAD → LGA

Scheduled flights
1,565
Flights operated
1,482
Cancelled
83 · 5.3%
On-time departures
82.6%

LGA → IAD

Scheduled flights
1,565
Flights operated
1,481
Cancelled
84 · 5.4%
On-time departures
79.7%

IAD → LGA and LGA → IAD counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Republic Airways YX 3,114 99.5% 81.2% 167
United Airlines UA 16 0.5% 75.0% 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 delay08:00–09:001.6min · 220 recorded · 213 measured
Gap to highest-delay hour19.3min08:00 ↔ 14:00
Recorded flights3,130IAD–LGA

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 · 93.3% · 442 recorded · 420 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 92.5% · 220 recorded · 213 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 84.5% · 220 recorded · 213 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 84.1% · 554 recorded · 529 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · 69.7% · 551 recorded · 524 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 3 recorded · 3 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 77.2% · 351 recorded · 325 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 19:00 · 75.6% · 344 recorded · 316 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 80.0% · 435 recorded · 410 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 · 3.3 min · 442 recorded · 420 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 1.6 min · 220 recorded · 213 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 6.0 min · 220 recorded · 213 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 8.6 min · 554 recorded · 529 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · 20.9 min · 551 recorded · 524 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 3 recorded · 3 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 16.2 min · 351 recorded · 325 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 19:00 · 16.6 min · 344 recorded · 316 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 14.5 min · 435 recorded · 410 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 · 442 · 442 recorded · 420 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 220 · 220 recorded · 213 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 220 · 220 recorded · 213 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 554 · 554 recorded · 529 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · 551 · 551 recorded · 524 measured · Source: the US BTS 15:00 · 3 · 3 recorded · 3 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 351 · 351 recorded · 325 measured · Source: the US BTS 18:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 19:00 · 344 · 344 recorded · 316 measured · Source: the US BTS 20:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · 435 · 435 recorded · 410 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———
06:0093.3%3.3 min420442
07:00No observations———
08:0092.5%1.6 min213220
09:00No observations———
10:0084.5%6.0 min213220
11:00No observations———
12:0084.1%8.6 min529554
13:00No observations———
14:0069.7%20.9 min524551
15:00Fewer than 200 measured departures—33
16:00No observations———
17:0077.2%16.2 min325351
18:00Fewer than 200 measured departures—55
19:0075.6%16.6 min316344
20:00Fewer than 200 measured departures—55
21:00No observations———
22:0080.0%14.5 min410435
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 80.4% · 457 recorded · 419 measured · Source: the US BTS Tuesday · 84.0% · 433 recorded · 413 measured · Source: the US BTS Wednesday · 81.2% · 419 recorded · 399 measured · Source: the US BTS Thursday · 78.1% · 437 recorded · 411 measured · Source: the US BTS Friday · 76.0% · 475 recorded · 454 measured · Source: the US BTS Saturday · 85.6% · 451 recorded · 436 measured · Source: the US BTS Sunday · 83.1% · 458 recorded · 431 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 · 11.3 min · 457 recorded · 419 measured · Source: the US BTS Tuesday · 6.4 min · 433 recorded · 413 measured · Source: the US BTS Wednesday · 11.8 min · 419 recorded · 399 measured · Source: the US BTS Thursday · 15.4 min · 437 recorded · 411 measured · Source: the US BTS Friday · 18.8 min · 475 recorded · 454 measured · Source: the US BTS Saturday · 7.1 min · 451 recorded · 436 measured · Source: the US BTS Sunday · 12.7 min · 458 recorded · 431 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 · 457 · 457 recorded · 419 measured · Source: the US BTS Tuesday · 433 · 433 recorded · 413 measured · Source: the US BTS Wednesday · 419 · 419 recorded · 399 measured · Source: the US BTS Thursday · 437 · 437 recorded · 411 measured · Source: the US BTS Friday · 475 · 475 recorded · 454 measured · Source: the US BTS Saturday · 451 · 451 recorded · 436 measured · Source: the US BTS Sunday · 458 · 458 recorded · 431 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday80.4%11.3 min419457
Tuesday84.0%6.4 min413433
Wednesday81.2%11.8 min399419
Thursday78.1%15.4 min411437
Friday76.0%18.8 min454475
Saturday85.6%7.1 min436451
Sunday83.1%12.7 min431458

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 · 86.6% · 247 recorded · 231 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 204 recorded · 192 measured · Source: the US BTS Mar · 73.3% · 233 recorded · 206 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 57 recorded · 57 measured · Source: the US BTS May · 82.5% · 275 recorded · 269 measured · Source: the US BTS Jun · 71.2% · 238 recorded · 219 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 210 recorded · 179 measured · Source: the US BTS Aug · 85.4% · 214 recorded · 206 measured · Source: the US BTS Sep · 85.5% · 222 recorded · 214 measured · Source: the US BTS Oct · 86.2% · 357 recorded · 355 measured · Source: the US BTS Nov · 83.2% · 413 recorded · 387 measured · Source: the US BTS Dec · 78.1% · 460 recorded · 448 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 · 5.6 min · 247 recorded · 231 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 204 recorded · 192 measured · Source: the US BTS Mar · 17.9 min · 233 recorded · 206 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 57 recorded · 57 measured · Source: the US BTS May · 6.1 min · 275 recorded · 269 measured · Source: the US BTS Jun · 29.1 min · 238 recorded · 219 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 210 recorded · 179 measured · Source: the US BTS Aug · 10.1 min · 214 recorded · 206 measured · Source: the US BTS Sep · 4.5 min · 222 recorded · 214 measured · Source: the US BTS Oct · 8.5 min · 357 recorded · 355 measured · Source: the US BTS Nov · 7.3 min · 413 recorded · 387 measured · Source: the US BTS Dec · 13.7 min · 460 recorded · 448 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 · 247 · 247 recorded · 231 measured · Source: the US BTS Feb · 204 · 204 recorded · 192 measured · Source: the US BTS Mar · 233 · 233 recorded · 206 measured · Source: the US BTS Apr · 57 · 57 recorded · 57 measured · Source: the US BTS May · 275 · 275 recorded · 269 measured · Source: the US BTS Jun · 238 · 238 recorded · 219 measured · Source: the US BTS Jul · 210 · 210 recorded · 179 measured · Source: the US BTS Aug · 214 · 214 recorded · 206 measured · Source: the US BTS Sep · 222 · 222 recorded · 214 measured · Source: the US BTS Oct · 357 · 357 recorded · 355 measured · Source: the US BTS Nov · 413 · 413 recorded · 387 measured · Source: the US BTS Dec · 460 · 460 recorded · 448 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan86.6%5.6 min231247
FebFewer than 200 measured departures—192204
Mar73.3%17.9 min206233
AprFewer than 200 measured departures—5757
May82.5%6.1 min269275
Jun71.2%29.1 min219238
JulFewer than 200 measured departures—179210
Aug85.4%10.1 min206214
Sep85.5%4.5 min214222
Oct86.2%8.5 min355357
Nov83.2%7.3 min387413
Dec78.1%13.7 min448460

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 76.8% 2,405
  • Delayed >15 min 17.8% 558
  • Cancelled 5.3% 167
  • 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
YX3688 LGA → IAD 351 66.5%
YX3413 IAD → LGA 348 82.1%
YX3656 LGA → IAD 331 93.0%
YX3497 IAD → LGA 310 79.6%
YX3535 LGA → IAD 296 76.8%
YX3704 IAD → LGA 232 83.5%
YX3698 IAD → LGA 176 82.1%
YX3631 LGA → IAD 142 81.3%
YX3532 IAD → LGA 131 86.7%
YX3695 IAD → LGA 104 93.1%
YX3581 LGA → IAD 86 76.2%
YX3539 IAD → LGA 79 92.4%
YX3478 LGA → IAD 51 82.0%
YX3452 LGA → IAD 37 77.8%
YX3491 LGA → IAD 37 100.0%
YX3516 LGA → IAD 33 90.0%
YX3682 IAD → LGA 31 61.5%

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 108 +52.1% 16 75.9%
June 2026 114 +8.6% 6 74.6%
May 2026 186 +124.1% 6 82.8%
April 2026 41 +156.3% 0 82.9%
March 2026 164 +290.5% 27 70.7%
February 2026 134 +131.0% 12 85.1%
January 2026 150 +85.2% 10 86.0%
December 2025 204 −16.4% 10 72.1%
November 2025 149 −37.4% 26 78.5%
October 2025 197 +24.7% 2 82.7%
September 2025 214 8 85.5%
August 2025 206 8 85.4%
July 2025 71 15 70.4%
June 2025 105 13 67.6%
May 2025 83 0 81.9%
April 2025 16 0 93.8%
March 2025 42 0 83.3%
February 2025 58 0 75.9%
January 2025 81 6 87.7%
December 2024 244 2 83.2%
November 2024 238 0 86.1%
October 2024 158 0 90.5%

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