Washington Dulles International Airport
Dulles, United StatesIAD / KIAD
International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft
66 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Dulles → Chicago
IAD
DullesWashington Dulles International Airport
DullesWashington Dulles International AirportORDChicagoChicago O'Hare International Airport
ChicagoChicago O'Hare International Airport- Distance
- 587 mi
- Estimated flight time
- ~1h 40m
Chicago is currently 1 hour behind Dulles.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 6 flights a day, observed from October 2025 to September 2026.
- 6
- flights per day
- 7
- busiest month · May
- 4
- quietest month · Jan
- 1 hr 34 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 4Jan2026
- 4Feb
- 5Mar
- 6Apr
- 7May
- 7Jun
- 7Jul
- 7Aug
- 7Sep
- 6Oct2025
- 5Nov
- 5Dec
Airlines
Who flies it
United Airlinesall year
SkyWest Airlinesspring
Republic Airwayswinter
Delta Air Linesautumn
GoJet Airlines LLCnow and then
Through the day
Departure times
Local time in Dulles. Most departures between 06:00 and 09:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 6Mon
- 5.8Tue
- 5.9Wed
- 5.8Thu
- 6.2Fri
- 6.1Sat
- 6Sun
Fleet
Aircraft observed
- Boeing 737-900B73935%
- Airbus A321neoA21N19%
- Boeing 737 MAX 9B39M11%
- Boeing 737-800B73811%
- Boeing 737 MAX 8B38M5%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 4 | 139 |
|
| February 2026 | 4 | 122 |
|
| March 2026 | 5 | 164 |
|
| April 2026 | 6 | 180 |
|
| May 2026 | 7 | 208 |
|
| June 2026 | 7 | 214 |
|
| July 2026 | 7 | 219 |
|
| August 2026 | 7 | 209 |
|
| September 2026 | 7 | 220 |
|
| October 2025 | 6 | 179 |
|
| November 2025 | 5 | 157 |
|
| December 2025 | 5 | 138 |
|
Airlines observed on this route
From observed callsign routes on IAD-ORD - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Dulles: 171.
- Direct destinations observed from Chicago: 259.
The airports on this route
Chicago O'Hare International Airport
Chicago, United StatesORD / KORD
International hub · 259 direct destinations · 8 runways · longest runway 12,999 ft
48 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
IAD MDWChicago Midway International AirportChicago is about 16 mi from Chicago.View route →DCA ORDRonald Reagan Washington National AirportWashington is about 24 mi from Dulles.View route →IAD GYYGary/Chicago International AirportGary is about 35 mi from Chicago.View route →BWI ORDBaltimore/Washington International Thurgood Marshall AirportBaltimore is about 45 mi from Dulles.View route →
About the route from Dulles to Chicago
The observed direct connection between Washington Dulles International Airport (IAD) and Chicago O'Hare International Airport (ORD) covers approximately 587 mi. The estimated flight time is around 1h 40m. Delta Air Lines, GoJet Airlines LLC, Republic Airways, SkyWest Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Dulles from Chicago by air?
- The great-circle distance between Washington Dulles International Airport and Chicago O'Hare International Airport is approximately 587 mi.
- How long is the flight from Dulles to Chicago?
- Based on the distance, the estimated flight time is about 1h 40m. This is an estimate, not a schedule.
- Is there a direct connection from Dulles to Chicago?
- Yes, a direct connection between IAD and ORD has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Delta Air Lines, GoJet Airlines LLC, Republic Airways, SkyWest Airlines and United Airlines.
- How often is there a flight from Dulles to Chicago?
- On average around 6 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 2,149 observed flights. Mainly United Airlines, SkyWest Airlines, Republic Airways. That is an observation, not a timetable.
- What is the current time difference between Dulles and Chicago?
- Chicago is currently 1 hour behind Dulles.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.