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1,537 km · Domestic

Washington Dulles (IAD) – Louis Armstrong New Orleans (MSY)

In July 2026, 94 flights operated between Washington Dulles and Louis Armstrong New Orleans (both directions), and 79.8% 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
January9286▼ 6.5%
February111100▼ 9.9%
March115102▼ 11.3%
April1201200.0%
May118140▲ 18.6%
June10388▼ 14.6%
July11694▼ 19.0%
August108––
September90––
October110–in progress
November120––
December96––
Year to date (Jan–Jul)775730▼ 5.8%

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
January88.0%91.9%▲ 4.4%
February90.1%93.0%▲ 3.2%
March89.6%88.2%▼ 1.6%
April89.2%95.8%▲ 7.4%
May89.0%91.4%▲ 2.7%
June84.5%78.4%▼ 7.2%
July81.9%79.8%▼ 2.6%
August92.6%––
September97.8%––
October92.7%–in progress
November88.3%––
December88.5%––
Year-to-date average (Jan–Jul)87.5%88.4%▲ 1.0%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January124▼ 66.7%
February00–
March00–
April00–
May00–
June10▼ 100.0%
July02–
August2––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)136▼ 53.8%

Airlines on this route

  1. United Airlines 97.4%
  2. Republic Airways 2.4%
  3. Frontier Airlines 0.3%

Oct 1, 2024 – Jul 31, 2026

By direction

IAD → MSY

Scheduled flights
1,173
Flights operated
1,163
Cancelled
10 · 0.9%
On-time departures
86.0%

MSY → IAD

Scheduled flights
1,171
Flights operated
1,160
Cancelled
11 · 0.9%
On-time departures
92.8%

IAD → MSY and MSY → IAD counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 2,282 97.4% 89.2% 21
Republic Airways YX 56 2.4% 96.4% 0
Frontier Airlines F9 6 0.3% 100.0% 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 delay12:00–13:000.4min · 547 recorded · 541 measured
Gap to highest-delay hour12.2min12:00 ↔ 17:00
Recorded flights2,344IAD–MSY

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 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 08:00 · 93.4% · 971 recorded · 964 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 95 recorded · 92 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 25 recorded · 25 measured · Source: the US BTS 12:00 · 93.2% · 547 recorded · 541 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 17:00 · 82.7% · 576 recorded · 572 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 13 recorded · 13 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 72 recorded · 71 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.

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 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 08:00 · 0.7 min · 971 recorded · 964 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 95 recorded · 92 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 25 recorded · 25 measured · Source: the US BTS 12:00 · 0.4 min · 547 recorded · 541 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 17:00 · 12.6 min · 576 recorded · 572 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 16 recorded · 16 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 13 recorded · 13 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 72 recorded · 71 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.

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 · 1 · 1 recorded · 1 measured · Source: the US BTS 07:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 08:00 · 971 · 971 recorded · 964 measured · Source: the US BTS 09:00 · 95 · 95 recorded · 92 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 25 · 25 recorded · 25 measured · Source: the US BTS 12:00 · 547 · 547 recorded · 541 measured · Source: the US BTS 13:00 · 21 · 21 recorded · 21 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 17:00 · 576 · 576 recorded · 572 measured · Source: the US BTS 18:00 · 16 · 16 recorded · 16 measured · Source: the US BTS 19:00 · 13 · 13 recorded · 13 measured · Source: the US BTS 20:00 · 72 · 72 recorded · 71 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

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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———
06:00Fewer than 200 measured departures—11
07:00Fewer than 200 measured departures—55
08:0093.4%0.7 min964971
09:00Fewer than 200 measured departures—9295
10:00No observations———
11:00Fewer than 200 measured departures—2525
12:0093.2%0.4 min541547
13:00Fewer than 200 measured departures—2121
14:00No observations———
15:00No observations———
16:00Fewer than 200 measured departures—22
17:0082.7%12.6 min572576
18:00Fewer than 200 measured departures—1616
19:00Fewer than 200 measured departures—1313
20:00Fewer than 200 measured departures—7172
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 89.0% · 372 recorded · 371 measured · Source: the US BTS Tuesday · 91.2% · 304 recorded · 296 measured · Source: the US BTS Wednesday · 91.2% · 310 recorded · 306 measured · Source: the US BTS Thursday · 87.1% · 366 recorded · 363 measured · Source: the US BTS Friday · 89.3% · 374 recorded · 373 measured · Source: the US BTS Saturday · 89.4% · 310 recorded · 310 measured · Source: the US BTS Sunday · 89.1% · 308 recorded · 304 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 · 5.5 min · 372 recorded · 371 measured · Source: the US BTS Tuesday · 4.0 min · 304 recorded · 296 measured · Source: the US BTS Wednesday · 1.5 min · 310 recorded · 306 measured · Source: the US BTS Thursday · 5.3 min · 366 recorded · 363 measured · Source: the US BTS Friday · 3.9 min · 374 recorded · 373 measured · Source: the US BTS Saturday · 4.0 min · 310 recorded · 310 measured · Source: the US BTS Sunday · 10.1 min · 308 recorded · 304 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 · 372 · 372 recorded · 371 measured · Source: the US BTS Tuesday · 304 · 304 recorded · 296 measured · Source: the US BTS Wednesday · 310 · 310 recorded · 306 measured · Source: the US BTS Thursday · 366 · 366 recorded · 363 measured · Source: the US BTS Friday · 374 · 374 recorded · 373 measured · Source: the US BTS Saturday · 310 · 310 recorded · 310 measured · Source: the US BTS Sunday · 308 · 308 recorded · 304 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday89.0%5.5 min371372
Tuesday91.2%4.0 min296304
Wednesday91.2%1.5 min306310
Thursday87.1%5.3 min363366
Friday89.3%3.9 min373374
Saturday89.4%4.0 min310310
Sunday89.1%10.1 min304308

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 · Fewer than 200 measured departures · 194 recorded · 178 measured · Source: the US BTS Feb · 91.5% · 211 recorded · 211 measured · Source: the US BTS Mar · 88.9% · 217 recorded · 217 measured · Source: the US BTS Apr · 92.5% · 240 recorded · 240 measured · Source: the US BTS May · 90.3% · 258 recorded · 258 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 192 recorded · 191 measured · Source: the US BTS Jul · 81.0% · 212 recorded · 210 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 110 recorded · 108 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Nov · 88.3% · 240 recorded · 240 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 190 recorded · 190 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 · Fewer than 200 measured departures · 194 recorded · 178 measured · Source: the US BTS Feb · 0.6 min · 211 recorded · 211 measured · Source: the US BTS Mar · 4.4 min · 217 recorded · 217 measured · Source: the US BTS Apr · 0.4 min · 240 recorded · 240 measured · Source: the US BTS May · 3.7 min · 258 recorded · 258 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 192 recorded · 191 measured · Source: the US BTS Jul · 20.9 min · 212 recorded · 210 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 110 recorded · 108 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 90 recorded · 90 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Nov · 5.7 min · 240 recorded · 240 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 190 recorded · 190 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 · 194 · 194 recorded · 178 measured · Source: the US BTS Feb · 211 · 211 recorded · 211 measured · Source: the US BTS Mar · 217 · 217 recorded · 217 measured · Source: the US BTS Apr · 240 · 240 recorded · 240 measured · Source: the US BTS May · 258 · 258 recorded · 258 measured · Source: the US BTS Jun · 192 · 192 recorded · 191 measured · Source: the US BTS Jul · 212 · 212 recorded · 210 measured · Source: the US BTS Aug · 110 · 110 recorded · 108 measured · Source: the US BTS Sep · 90 · 90 recorded · 90 measured · Source: the US BTS Oct · 190 · 190 recorded · 190 measured · Source: the US BTS Nov · 240 · 240 recorded · 240 measured · Source: the US BTS Dec · 190 · 190 recorded · 190 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—178194
Feb91.5%0.6 min211211
Mar88.9%4.4 min217217
Apr92.5%0.4 min240240
May90.3%3.7 min258258
JunFewer than 200 measured departures—191192
Jul81.0%20.9 min210212
AugFewer than 200 measured departures—108110
SepFewer than 200 measured departures—9090
OctFewer than 200 measured departures—190190
Nov88.3%5.7 min240240
DecFewer than 200 measured departures—190190

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 88.6% 2,076
  • Delayed >15 min 10.5% 247
  • Cancelled 0.9% 21
  • 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

11
11 of 11
Flight numbersBy direction DeparturesOn time
UA1392 MSY → IAD 570 92.9%
UA2253 IAD → MSY 443 94.1%
UA251 IAD → MSY 356 82.5%
UA2276 MSY → IAD 202 92.5%
UA2497 MSY → IAD 174 93.0%
UA1521 IAD → MSY 84 78.6%
UA1494 IAD → MSY 73 79.5%
UA2042 IAD → MSY 72 62.0%
UA1868 MSY → IAD 37 91.9%
UA721 IAD → MSY 37 85.3%
UA1757 MSY → IAD 32 89.7%

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 94 −19.0% 2 79.8%
June 2026 88 −14.6% 0 78.4%
May 2026 140 +18.6% 0 91.4%
April 2026 120 +0.0% 0 95.8%
March 2026 102 −11.3% 0 88.2%
February 2026 100 −9.9% 0 93.0%
January 2026 86 −6.5% 4 91.9%
December 2025 96 +2.1% 0 88.5%
November 2025 120 +0.0% 0 88.3%
October 2025 110 +37.5% 0 92.7%
September 2025 90 0 97.8%
August 2025 108 2 92.6%
July 2025 116 0 81.9%
June 2025 103 1 84.5%
May 2025 118 0 89.0%
April 2025 120 0 89.2%
March 2025 115 0 89.6%
February 2025 111 0 90.1%
January 2025 92 12 88.0%
December 2024 94 0 89.4%
November 2024 120 0 88.3%
October 2024 80 0 97.5%

How to read this chart

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