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Cheap flights from Chicago to Washington Dulles Intl (CHI - IAD)

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The best prices from Chicago to Washington Dulles Intl are usually found in August or March, booked 26 days in advance, depart on a Saturday or Thursday and return on a Saturday

How to find the cheapest flight from
Chicago (CHI) to Washington Dulles Intl (IAD)

CHI - IAD
Price
$176 - $392
IAD
Temperature
46.4 - 87.8 °F
IAD
Rainfall
2.5 - 4.4 inches

Popular in

January

High demand for flights, 24% potential price rise

Cheapest in

August

Best time to find cheap flights, 41% potential price drop

Round-trip from

$176

From Chicago to Washington Dulles Intl

One-way from

$73

One-way flight from Chicago to Washington Dulles Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Chicago to Washington Dulles Intl?

Saturday flights are found to be more expensive to fly from Chicago to Washington Dulles Intl. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington Dulles Intl.

How far in advance should I book a flight from Chicago to Washington Dulles Intl?

Users have found that booking a flight from Chicago to Washington Dulles Intl at least 31 days early can save you up to 111% on average compared to booking a flight this week. If booking 31 days before your flight isn’t an option for you, users have found flights from Chicago to Washington Dulles Intl for as little as $235 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $341 for flights departing within the next 3 days.

What is the cheapest month to fly from Chicago to Washington Dulles Intl?

Our data shows that April tends to be the cheapest month to fly to Washington Dulles Intl from Chicago. Users have commonly found prices around $172 for the month, but tickets can be as low as $113. Due to multiple factors, prepare for potentially higher prices in September.

When is the cheapest time to fly from Chicago to Washington Dulles Intl (CHI - IAD)?

It’s typically best to fly out from Chicago to Washington Dulles Intl in the evening. Doing so could potentially save you 5% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from Chicago to Washington Dulles Intl in November, December 2020

The best prices found for CHI to IAD flights for November, December
29 Dec - 29 Dec
$112pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
6 Dec - 6 Dec
$131pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
5 Dec - 6 Dec
$139pp
ORD
Chicago O'Hare Intl
United Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Chicago to Washington Dulles Intl 2021 flight deals

Cheap flights to Washington Dulles Intl from Chicago found for next year
29 Dec - 29 Dec
$112pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
6 Dec - 6 Dec
$131pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
5 Dec - 6 Dec
$139pp
ORD
Chicago O'Hare Intl
United Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Non-stop flights to Washington Dulles Intl from Chicago

Save time with Chicago to Washington Dulles Intl direct flight deals
18 Feb - 18 Feb
$167pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
10 Dec - 17 Dec
$177pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
18 Dec - 25 Dec
$187pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to Washington Dulles Intl

Late deals on round-trip flights to Washington Dulles Intl from Chicago, departing today and this week
6 Dec - 6 Dec
$131pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
5 Dec - 6 Dec
$139pp
ORD
Chicago O'Hare Intl
United Airlines
 
1 STOP
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
6 Dec - 6 Dec
$166pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
IAD
Washington Dulles Intl
United Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl

One-way flights to Washington Dulles Intl from Chicago

The cheapest one-way flights from Chicago to Washington Dulles Intl
3:59 pm - 8:13 am
Frontier
1 Stop
15h 14m
ORD - IAD
Frontier
$73
Gotogate
12:30 am - 5:27 am
American Airlines
1 Stop
3h 57m
ORD - IAD
American Airlines
8:24 am - 4:46 pm
Delta
2 Stops
7h 22m
ORD - IAD
Delta
$98
Delta

Related info for your journey

Useful info, stats and facts about Chicago to Washington Dulles Intl flights.

Flight FAQs

From Chicago to Washington Dulles Intl

Are flight prices decreasing from Chicago to Washington Dulles Intl due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Chicago and Washington Dulles Intl for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Chicago to Washington Dulles Intl to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Chicago to Washington Dulles Intl. Policies will vary by airline.

Which airlines flying from Chicago to Washington Dulles Intl have flexible cancellations due to COVID-19?

United Airlines, Delta, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Chicago to Washington Dulles Intl for under $200 on Cheapflights?

Yes, there are multiple flights from Chicago to Washington Dulles Intl for under $200. The cheapest flight booked recently is on United Airlines for just $112, but on average you can expect to pay $149.

Are there nonstop flights from Chicago to Washington Dulles Intl for under $200 on Cheapflights?

Cheapflights has at least 13 direct flights from Chicago to Washington Dulles Intl under $200. A good price for a nonstop flight from Chicago to Washington Dulles Intl is less than $274.

Are there last-minute flights available from Chicago to Washington Dulles Intl for under $200?

There are currently 20+ open flights from Chicago to Washington Dulles Intl within the next 7 days for less than $200.

What days are nonstop flights available from Chicago to Washington Dulles Intl?

You can find nonstop flights on the following days: Monday, Tuesday, Friday, Saturday.

How many flights depart from Chicago to Washington Dulles Intl on average per day?

11 flight departures from Chicago to Washington Dulles Intl per day on average.
Morning (6am - Noon) - 55% of flight departures
Afternoon (Noon - 6pm) - 36% of flight departures
Evening (6pm - Midnight) - 9% of flight departures

Is Chicago weather warmer or cooler than Washington Dulles Intl?

Our data indicates that the weather will be 88 °F on average in the month of July. The temperature in Washington Dulles Intl is typically hotter than in Chicago. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Chicago to Washington Dulles Intl?

United Airlines, Delta, and American Airlines can get you from Chicago to Washington Dulles Intl in just under 1h 42m. Your travel time can differ by up to 3h. The distance between Chicago and Washington Dulles Intl is about 590 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Chicago to Washington Dulles Intl round-trip?

United Airlines, at $112, was found to be the cheapest airline from Chicago to Washington Dulles Intl.Alternate airlines to your destination round-trip include Frontier and American Airlines. These flights start at 62% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Chicago to Washington Dulles Intl one-way?

One-way options have recently been found by users for as low as $59 on Frontier. Other airlines that offer cheap prices include Delta from $87 and American Airlines from $87 one-way.

Destination information for Washington Dulles Intl

Things to know before you go. Useful info for your trip from Chicago to Washington Dulles Intl
Average temperature for November in Washington Dulles Intl
59.0 °F
Avg rainfall for November in Washington Dulles Intl
3.7 ″

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Airports servicing Washington

Top 4 airlines from Chicago to Washington Dulles Intl

The chart below displays the airlines Cheapflights users traveling from Chicago to Washington Dulles Intl choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$97 $188 No cancel fee 65%
American Airlines
$43 $325 No cancel fee 71%
Delta
$105 $359 No cancel fee N/A
United Airlines
$224 $364 No cancel fee 69%

Hourly flight availability from Chicago to Washington Dulles Intl

Morning 6 AM to noon 60% of CHI to IAD departures
Afternoon Noon to 6 PM 40% of CHI to IAD departures
Early morning Midnight to 6 AM 0% of CHI to IAD departures
Evening 6 PM to midnight 0% of CHI to IAD departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to Washington Dulles Intl
Sunday
32 daily flights
Monday
9 daily flights
Tuesday
1 daily flight
Wednesday
4 daily flights
Thursday
0 flights
Friday
0 flights
Saturday
12 daily flights