Airports › Washington (IAD) › March 2024
Airport month · March 2024
Washington Dulles International in March 2024
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In March 2024, reporting carriers scheduled 4,277 domestic departures from Washington Dulles International (IAD). 84.3% left less than 15 minutes late and 84.4% reached their destination on time; 0.3% were cancelled.
Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so IAD departures were 5.8 points above the national departure figure.
Flights arriving at IAD that month were on time 82.7% of the time (4,281 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 36%, national aviation system 31% and air carrier 30%.
- On time 84.4%
- Arrived 15+ minutes late 15.2%
- Cancelled 0.3%
- Diverted 0.2%
March 2024 against a year earlier, the airport's year and the nation
| Measure | Mar 2024 | Year earlier | IAD, 12 months to Jul 2026 | All reported flights, Mar 2024 |
|---|---|---|---|---|
| Departed on time | 84.3% | — | 82.6% | 78.5% |
| Arrived on time | 84.4% | — | 80.1% | 78.3% |
| Cancelled | 0.3% | — | 1.4% | 0.9% |
| Average departure delay (late minutes only) | 11.4 min | — | 14.7 min | 15.7 min |
| Scheduled departures a day | 143 | — | 159 | 19,726 |
| Scheduled departures | 4,277 | — | 58,031 | 591,767 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 2,750 | 64% | 84.0% | -0.9 min | 0.3% |
| YX Republic Airline | 636 | 15% | 88.8% | -8.2 min | 0.2% |
| DL Delta Air Lines | 242 | 6% | 89.3% | -8.8 min | 0.0% |
| AS Alaska Airlines | 160 | 4% | 71.3% | 7.2 min | 0.0% |
| OH PSA Airlines | 119 | 3% | 86.6% | -4.4 min | 0.0% |
| OO SkyWest Airlines | 111 | 3% | 86.5% | -2.7 min | 2.7% |
| 9E Endeavor Air | 87 | 2% | 87.4% | -3.4 min | 0.0% |
| WN Southwest Airlines | 75 | 2% | 85.3% | -4.3 min | 0.0% |
| AA American Airlines | 60 | 1% | 73.3% | 0.0 min | 0.0% |
| G4 Allegiant Air | 36 | 1% | 61.1% | 45.8 min | 0.0% |
| F9 Frontier Airlines | 1 | 0% | 100.0% | 6.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IAD–DEN | Washington to Denver | 253 | 88.9% | -4.2 min | 0.4% |
| IAD–LAX | Washington to Los Angeles | 214 | 78.5% | -6.8 min | 0.5% |
| IAD–SFO | Washington to San Francisco | 213 | 79.3% | 0.0 min | 0.5% |
| IAD–ATL | Washington to Atlanta | 209 | 87.6% | -4.5 min | 0.0% |
| IAD–MCO | Washington to Orlando | 155 | 72.3% | 12.1 min | 0.0% |
| IAD–SAN | Washington to San Diego | 155 | 87.1% | -13.7 min | 0.0% |
| IAD–CLT | Washington to Charlotte | 153 | 85.6% | -3.2 min | 0.0% |
| IAD–DFW | Washington to Dallas/Fort Worth | 141 | 75.9% | 1.1 min | 0.7% |
| IAD–ORD | Washington to Chicago | 126 | 93.7% | -5.1 min | 0.0% |
| IAD–BOS | Washington to Boston | 124 | 86.3% | -0.7 min | 0.0% |
| IAD–IAH | Washington to Houston | 124 | 86.3% | -5.1 min | 0.0% |
| IAD–EWR | Washington to Newark | 122 | 86.9% | -3.6 min | 0.8% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IAD on time in March 2024?
84.3% of 4,277 scheduled domestic departures left less than 15 minutes late, and 84.4% reached their destination on time. The national figures that month were 78.5% and 78.3%.
How does that compare with a year earlier?
March 2023 is outside the 36 months on file, or the airport had too few reported flights that month.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for IAD · methodology · corrections.