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

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

All the information you need to plan the best CHI to IAD flight in 2021: compare Chicago to Dulles Intl flight prices with the expected peak season, weather and rainfall in Dulles Intl.
CHI - IAD
Price
$176 - $392
IAD
Temperature
35.6 - 80.6 °F
IAD
Precipitation
2.6 - 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 (CHI) to Washington Dulles Intl

One-way from

$94

One-way flight from Chicago (CHI) 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 month to fly from Chicago to Washington Dulles Intl Airport?

Flights from Chicago to Washington Dulles Intl Airport lean towards being more expensive in November. Prices are generally better when you fly from Chicago to Washington Dulles Intl Airport in July, with the cheapest ticket starting at $74.

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

When flying from Chicago to Washington Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 14 days in advance, which can save you up to 9% on flights from Chicago to Washington Dulles Intl Airport compared to booking the week you need them. Waiting 14 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $196. For sooner than that we have options available in the next 3 days from $227.

Cheap flights from Chicago to Dulles Intl in October, November 2021

The best prices found for CHI to IAD flights for October, November
16 Nov - 16 Nov
$116pp
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
20 Oct - 20 Oct
$120pp
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
26 Oct - 27 Oct
$122pp
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 Dulles Intl 2021 flight deals

Cheap flights to Dulles Intl from Chicago found for this year
16 Nov - 16 Nov
$116pp
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
20 Oct - 20 Oct
$120pp
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
26 Oct - 27 Oct
$122pp
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 Dulles Intl from Chicago

Save time with Chicago to Dulles Intl direct flight deals
15 Dec - 15 Dec
$132pp
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
14 Dec - 25 Jan
$137pp
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
14 Dec - 25 Dec
$147pp
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 Dulles Intl

Late deals on round-trip flights to Dulles Intl from Chicago, departing today and this week
20 Oct - 20 Oct
$120pp
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
19 Oct - 20 Oct
$126pp
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
20 Oct - 19 Nov
$212pp
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

One-way flights to Dulles Intl from Chicago

The cheapest one-way flights from Chicago to Dulles Intl
1:12 am - 4:42 am
Frontier
1 Stop
26h 30m
ORD - IAD
Frontier
$94
Kiwi.com
12:55 pm - 6:20 pm
Delta
1 Stop
4h 25m
MDW - IAD
Delta
$98
Delta
3:30 am - 6:18 am
United Airlines
Nonstop
1h 48m
ORD - IAD
United Airlines
$99
United

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Chicago</span> to <span class="emphasized">Dulles Intl</span> flights.

Flight FAQs

From Chicago to Dulles Intl

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 Airport for under $200 on Cheapflights?

Yes, there are multiple flights from Chicago to Washington Dulles Intl Airport for under $200. The cheapest flight booked recently is on United Airlines for just $116, but on average you can expect to pay $145.

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

Cheapflights has at least 20 direct flights from Chicago to Washington Dulles Intl Airport under $200. A good price for a nonstop flight from Chicago to Washington Dulles Intl Airport is less than $199.

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

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

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

Days when nonstop flights are available for this flight are: Thursday.

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

Per day, 3 flights depart from Chicago to Washington Dulles Intl Airport on average.
Afternoon (Noon - 6pm) - 100% of flight departures

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

United Airlines, Frontier, and American Airlines can get you from Chicago to Washington Dulles Intl Airport in just under 3h 58m. Your travel time can differ by up to 7h 56m. The distance between Chicago and Washington Dulles Intl Airport is about 590 mi. This flight may include one or multiple stops.

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

Currently priced at $116, United Airlines will fly you from Chicago to Washington Dulles Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and American Airlines - these airlines can fly you to your destination from $148 and $152, respectively. These flights start at 61% lower than the current average price 3 months from now.

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

The cheapest airlines for a one-way flight from Chicago to Washington Dulles Intl Airport are Frontier ($59), United Airlines ($69), and American Airlines ($76).

What are the most popular airlines that fly from Chicago to Washington Dulles Intl Airport?

Major Airline, American Airlines and Delta are the most popular airlines when flying from Chicago to Washington Dulles Intl Airport.

What are the most reliable airlines from Chicago to Washington Dulles Intl Airport?

The top 3 most reliable airlines when flying from Chicago to Washington Dulles Intl Airport are Egypt Air (100%), Asiana Airlines (100%) and Republic Airways (100%).

What are the cheapest flights from Chicago to Washington Dulles Intl Airport?

Looking at all options, your cheapest flight can be booked for $91. While the most popular route (Chicago O'Hare Intl - Washington Dulles Intl) can be booked for $132 on average our data indicates $454 when flying from Chicago to Washington Dulles Intl Airport

COVID Restrictions

View COVID Travel Restrictions for Dulles Intl (IAD)

Do I need a COVID test to fly to Dulles Intl from Chicago?

Information is based on travel restrictions for travel to Washington Dulles Intl within the United States

Most visitors from Chicago need to provide a negative COVID-19 test result and/or quarantine to enter Washington Dulles Intl.

COVID-19 testing requirements
Visitors from Chicago must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Washington Dulles Intl.

Quarantine requirements
Visitors from Chicago are not required to quarantine after entering Washington Dulles Intl.

Do I need a test to fly back to Chicago from Dulles Intl?

Returning to Chicago from Washington Dulles Intl

COVID-19 testing requirements
Visitors from Washington Dulles Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Chicago.

Quarantine requirements
Visitors from Washington Dulles Intl are not required to quarantine after entering Chicago.

Hide COVID Travel Restrictions for Dulles Intl (IAD)

Destination information for Dulles Intl

Things to know before you go - useful duration and weather info for your trip from Chicago to Dulles Intl.
Flight duration from Chicago to Washington Dulles Intl
1h 59m
Average temperature for October in Dulles Intl
69.8 °F
Avg rainfall for October in Dulles Intl
3.8 ″

Airports servicing Chicago

Midway (MDW)
Rockford (RFD)

Airports servicing Washington

Top 4 airlines flying from Chicago to Washington Dulles Intl

The chart below displays the airlines Cheapflights users traveling from Chicago to 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
American Airlines
$43 $325 No cancel fee 71%
Spirit Airlines
$97 $188 No cancel fee 65%
Delta
$105 $359 No cancel fee N/A
United Airlines
$224 $364 No cancel fee 69%

Hourly flight availability from Chicago to Dulles Intl

See what time of day planes typically take off from Chicago towards Dulles Intl.
Morning 6 AM to noon 38% of CHI to IAD departures
Evening 6 PM to midnight 35% of CHI to IAD departures
Afternoon Noon to 6 PM 26% of CHI to IAD departures
Early morning Midnight to 6 AM 1% of CHI to IAD departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to Dulles Intl
See how many times per day planes take to the skies headed from Chicago to Dulles Intl.
Sunday
20 daily flights
Monday
20 daily flights
Tuesday
26 daily flights
Wednesday
27 daily flights
Thursday
26 daily flights
Friday
24 daily flights
Saturday
14 daily flights
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