New York (LGA) to Dulles (IAD) flights
Republic Airline, Mesa Airlines fly nonstop from LaGuardia Airport to Washington Dulles International Airport, with about 24 flights a week in July 2026. The 228-mile flight takes about 1h 24m gate to gate.
- Distance
- 228 mi · 367 km
- Flight time
- 1h 24m
- Airlines
- 2
- Seats filled
- 82%
Airlines flying LGA to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 12 | Embraer E175, Embraer E170 | 58,950 | 1h 25m |
| Mesa Airlines | 12 | Embraer E175 | 24,904 | 1h 23m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
LGA to IAD flight schedule
8 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 6:00am and the last at 7:29pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 4037United Airlines · operated by Mesa Airlines | 6:00am | 7:23am | 21 | 90% |
| UA 3656United Airlines · operated by Republic Airline | 6:05am | 7:31am | 10 | 93% |
| UA 4048United Airlines · operated by Mesa Airlines | 10:20am | 11:50am | 21 | 66% |
| UA 6242United Airlines · operated by Mesa Airlines | 10:29am | 11:55am | 10 | 78% |
| UA 3688United Airlines · operated by Republic Airline | 2:51pm | 4:35pm | 10 | 62% |
| UA 4051United Airlines · operated by Mesa Airlines | 2:55pm | 4:30pm | 21 | 65% |
| UA 6244United Airlines · operated by Mesa Airlines | 7:28pm | 8:55pm | 10 | 63% |
| UA 4056United Airlines · operated by Mesa Airlines | 7:29pm | 9:02pm | 21 | 63% |
Is LGA to IAD on time?
From September 2025 to August 2026, 75% of 1,450 flights arrived within 15 minutes of schedule and 7.1% were cancelled. Flights leaving around 6am were the most punctual (91%), those around 2pm the least (60%). Most delay time was caused by late-arriving aircraft (53%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,450 | 75% | 23 min | 7.1% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 364 | 91% | |
| 10am to 11am | 364 | 77% | |
| 2pm to 3pm | 362 | 60% | |
| 7pm to 8pm | 360 | 70% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 121 | 8,194 | |
| September 2025 | 116 | 7,417 | |
| October 2025 | 122 | 7,740 | |
| November 2025 | 101 | 5,921 | |
| December 2025 | 118 | 7,873 | |
| January 2026 | 115 | 6,481 | |
| February 2026 | 102 | 5,979 | |
| March 2026 | 108 | 6,522 | |
| April 2026 | 114 | 6,505 | |
| May 2026 | 122 | 7,354 | |
| June 2026 | 111 | 6,984 | |
| July 2026 | 108 | 7,039 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.