
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $209 (Trip.com) |
One-way from | $103 (Delta) |
Popular in | February |
Cheapest in | May |
Average price | $369 |
Good round-trip deal | $546 or less |
Good one-way deal | $219 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Tue 5/5
12:55 pm-3:58 pm
Nonstop2h 03m
Washington, D.C. Dulles Intl
Fri 5/8
10:30 pm-11:44 pm
Nonstop2h 14m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Fri 4/17
1:00 pm-4:03 pm
Nonstop2h 03m
Washington, D.C. Dulles Intl
Wed 4/22
10:30 pm-11:43 pm
Nonstop2h 13m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Fri 5/15
8:45 am-11:48 am
Nonstop2h 03m
Washington, D.C. Dulles Intl
Tue 5/19
8:20 am-9:37 am
Nonstop2h 17m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Tue 4/14
9:50 am-4:31 pm
1 stop5h 41m
Washington, D.C. Dulles Intl
Wed 4/15
12:12 pm-6:13 pm
1 stop7h 01m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Thu 6/4
5:30 am-11:42 am
1 stop5h 12m
Washington, D.C. Dulles Intl
Tue 6/9
6:00 am-10:45 am
1 stop5h 45m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Wed 5/6
8:52 am-4:15 pm
1 stop6h 23m
Washington, D.C. Dulles Intl
Sat 5/9
6:08 am-1:01 pm
1 stop7h 53m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Thu 5/7
9:25 am-4:31 pm
1 stop6h 06m
Washington, D.C. Dulles Intl
Mon 5/11
5:33 pm-9:53 pm
1 stop5h 20m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Fri 5/8
11:09 am-4:31 pm
1 stop4h 22m
Washington, D.C. Dulles Intl
Sat 5/9
6:00 am-8:45 am
1 stop3h 45m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Fri 5/22
1:18 pm-4:26 pm
Nonstop2h 08m
Washington, D.C. Dulles Intl
Sat 5/23
3:39 pm-5:02 pm
Nonstop2h 23m
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Thu 4/16
1:00 pm-4:03 pm
Nonstop2h 03m
Washington, D.C. Dulles Intl
Wed 4/22
8:20 am-9:38 am
Nonstop2h 18m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport (average of $142). Flying from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $253). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 45% on the flight price compared to flying at noon, which is usually more expensive.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 18% of weekly flights between Chicago and Washington, D.C. have experienced delays in the past year, with the average delay time being 132 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.
Entertainment
Boarding
Comfort
Overall
Food
Crew
Reviews
Dane,Jan 2026
TYS - IAD
Entertainment
Boarding
Comfort
Overall
Food
Crew
Reviews
Dane,Jan 2026
TYS - IAD
Entertainment
Boarding
Comfort
Overall
Food
Crew
Reviews
Dane,Jan 2026
TYS - IAD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$200 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$210 | Average$337 | FlexibilityNo cancel fee | On-time69% |