Dulles (IAD) to Detroit (DTW) flights

Mesa Airlines, Delta Air Lines, SkyWest Airlines, Republic Airline fly nonstop from Washington Dulles International Airport to Detroit Metropolitan Wayne County Airport, with about 45 flights a week in July 2026. The 383-mile flight takes about 1h 35m gate to gate.

From
IAD
Dulles
Washington Dulles International Airport
To
DTW
Detroit
Detroit Metropolitan Wayne County Airport
Distance
383 mi · 616 km
Flight time
1h 35m
Airlines
4
Seats filled
78%
Flights a week, July 2026
2,166 flights and 128,729 passengers in 12 months
DTWDTWIAD
Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying IAD to DTW

AirlineFlights a weekAircraftPassengers (12 months)Flight time
Mesa Airlines17Embraer E17541,1201h 35m
Delta Air Lines12Boeing 717-200, Airbus A32113,5341h 32m
SkyWest Airlines9Bombardier CRJ900, Bombardier CRJ700, Bombardier CRJ55037,6071h 34m
Republic Airline7Embraer E175, Embraer E17014,8031h 40m
Endeavor AirSeasonal or endedn/aBombardier CRJ900, Bombardier CRJ70016,0881h 33m
United AirlinesSeasonal or endedn/aBoeing 737-700 / MAX 7, Airbus A319, Airbus A320-100/2003,9831h 39m
GoJet AirlinesSeasonal or endedn/aBombardier CRJ5501,5941h 43m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

IAD to DTW flight schedule

12 flight numbers flew this route in August 2026, 5 of them almost daily. The first usually leaves at 6:10am and the last at 10:20pm. Times are local and can change; check with the airline before you book.

FlightDepartsArrivesDays flown in August 2026On time (12 months)
DL 3826Delta Air Lines · operated by SkyWest Airlines6:10am7:47am3185%
UA 6137United Airlines · operated by Mesa Airlines8:35am10:10am2987%
DL 2884Delta Air Lines11:10am12:47pm2691%
DL 3883Delta Air Lines · operated by SkyWest Airlines12:30pm2:13pm4n/a
UA 3494United Airlines · operated by Republic Airline12:35pm2:11pm2181%
UA 3495United Airlines · operated by Republic Airline12:55pm2:34pm1075%
DL 3787Delta Air Lines · operated by SkyWest Airlines5:16pm7:09pm575%
UA 6246United Airlines · operated by Mesa Airlines5:22pm7:02pm1673%
DL 1787Delta Air Lines5:25pm7:14pm2676%
UA 4316United Airlines · operated by CommuteAir5:25pm6:58pm1520%
UA 3995United Airlines · operated by Mesa Airlines10:10pm11:51pm961%
UA 4024United Airlines · operated by Mesa Airlines10:20pm11:59pm1276%

Is IAD to DTW on time?

From September 2025 to August 2026, 78% of 2,199 flights arrived within 15 minutes of schedule and 1.5% were cancelled. Flights leaving around 11am were the most punctual (86%), those around 5pm the least (71%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (50%).

AirlineFlightsOn timeAverage delayCancelled
Delta Air Lines1,12979%26 min1.6%
United Airlines1,07078%21 min1.5%

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 departureFlightsOn time, relativeOn time
6am to 7am365
83%
8am to 9am333
86%
11am to 12pm169
86%
12pm to 1pm230
75%
1pm to 2pm70
90%
5pm to 6pm708
71%
10pm to 11pm269
73%

Flights by month

MonthFlightsFlights, relativePassengers
August 2025207
12,386
September 2025191
10,897
October 2025201
11,965
November 2025174
9,568
December 2025178
9,323
January 2026149
7,063
February 2026142
6,687
March 2026169
9,379
April 2026170
10,600
May 2026191
13,442
June 2026198
13,570
July 2026200
14,041

Related

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.