Cheap flights from Dulles Intl (IAD) to Chicago (CHI) from $79

This is the cheapest one-way flight price, found on 9/26. Prices may vary by date and flight preferences.
IAD — CHI
oct. 2 — oct. 91

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

All the information you need to plan the best IAD to CHI flight in 2023: compare Dulles Intl to Chicago flight prices with the expected peak season, weather and rainfall in Chicago.

Popular in

June

Cheapest in

February

Round-trip from

$207

One-way from

$117
High demand for flights, 18% potential price rise
Best time to find cheap flights, 18% potential price drop
From Washington, D.C. Dulles Intl to Chicago (CHI)
One-way flight from Washington, D.C. Dulles Intl to Chicago (CHI)

IAD - CHI

Price

$207 - $364

CHI

Temperature

23 - 73.4 °F

CHI

Rainfall

1.7 - 4.9 inches

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 60 days in advance, which can save you up to 38% on flights from Washington, D.C. Dulles Intl Airport to Chicago compared to booking the week you need them. Waiting 60 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 $337. For sooner than that we have options available in the next 3 days from $414.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Chicago?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Chicago. Flights to Chicago from Washington, D.C. Dulles Intl Airport in January are about $306 on average during January, but can be found for as low as $152.

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

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

Cheap Delta flights from Dulles Intl to Chicago

Take a peek at the cheapest Delta flights we've detected traveling from Washington, D.C. to Chicago. Make sure to double check the flight details before booking.

Cheap United Airlines flights from Dulles Intl to Chicago

Take a gander at the lowest prices we've found on United Airlines flights from Washington, D.C. to Chicago. Make sure to examine the flight information before completing your reservation.

Cheap Dulles Intl to Chicago flights in September & October 2023

The best prices found for IAD to CHI flights for September, October
These are some of the best deals we've found on flights to Chicago in 2023 at this time. More deals are always being added, so be sure to check back regularly.

Dulles Intl to Chicago 2023 flight deals

Cheap flights to Chicago from Dulles Intl found for this year
These are some of the best deals we've found on flights to Chicago in 2023 at this time. More deals are always being added, so be sure to check back regularly.

Non-stop flights to Chicago from Dulles Intl

Save time with Dulles Intl to Chicago direct flight deals
To help reduce your travel time, choose from one of these non-stop flights from Washington, D.C. to Chicago. Users seeking other options on flights from Washington, D.C. to Chicago should update the search form at the top of the page.

Dulles Intl to Chicago flights leaving soon

Late deals on return flights to Chicago from Dulles Intl, departing today and this week
Book one of these great deals on flights from Washington, D.C. to Chicago. Users should examine the flight details to ensure there are no surprises.

One-way flights to Chicago from Dulles Intl

The cheapest one-way flights from Dulles Intl to Chicago
Users traveling one-way from Washington, D.C. to Chicago can select one of these great deals. For those needing a return trip from Washington, D.C., there is a search form available above.

Find flights from Dulles Intl to Chicago within your budget

Use the slider to find flights from Dulles Intl to Chicago that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$158 - $276

Route

Depart

Return

Price

Washington, D.C. Dulles IntlChicago O'Hare Intl

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

sáb. 11/4

Nonstop2h 10m

Chicago O'Hare Intl

mié. 11/8

Nonstop1h 55m

Washington, D.C. Dulles IntlChicago O'Hare Intl

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

mié. 11/1

Nonstop2h 10m

Chicago O'Hare Intl

vie. 11/3

Nonstop1h 55m

Washington, D.C. Dulles IntlChicago O'Hare Intl

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

sáb. 10/28

Nonstop2h 06m

Chicago O'Hare Intl

lun. 10/30

Nonstop1h 55m

Washington, D.C. Dulles IntlChicago O'Hare Intl

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

dom. 10/29

1 stop4h 01m

Chicago O'Hare Intl

mar. 10/31

1 stop4h 03m

Washington, D.C. Dulles IntlChicago Midway

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

dom. 10/29

1 stop3h 31m

Chicago Midway

mar. 10/31

1 stop4h 46m

Washington, D.C. Dulles IntlChicago O'Hare Intl

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

mar. 10/24

1 stop6h 15m

Chicago O'Hare Intl

mar. 10/24

1 stop9h 01m

Washington, D.C. Dulles IntlChicago Midway

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

mar. 10/17

1 stop7h 10m

Chicago Midway

mar. 10/24

1 stop10h 01m

Washington, D.C. Dulles IntlChicago O'Hare Intl

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

mar. 10/17

3 stops25h 59m

Chicago O'Hare Intl

mié. 10/25

3 stops25h 42m

Washington, D.C. Dulles IntlChicago Midway

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

mar. 10/31

Nonstop1h 55m

Chicago Midway

jue. 11/2

Nonstop1h 40m

Flights are sorted by cheapest first

Deals found on 9/26

Reviews of airlines servicing Chicago

Read through reviews of airlines operating flights from Washington, D.C. to Chicago, such as Delta, United Airlines and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,394 reviews

Boarding

8.3

Comfort

8.0

Crew

8.6

Overall

8.1

Entertainment

7.2

Food

7.2

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

Alaska Airlines
8.1
Very good
1,394 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Boarding

8.3

Comfort

8.0

Crew

8.6

Overall

8.1

Entertainment

7.2

Food

7.2

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

Delta
7.9
Good
3,021 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Boarding

8.3

Comfort

8.0

Crew

8.6

Overall

8.1

Entertainment

7.2

Food

7.2

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

Southwest
7.6
Good
1,521 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Boarding

8.3

Comfort

8.0

Crew

8.6

Overall

8.1

Entertainment

7.2

Food

7.2

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

United Airlines
7.4
Good
1,890 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Boarding

8.3

Comfort

8.0

Crew

8.6

Overall

8.1

Entertainment

7.2

Food

7.2

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Boarding

8.3

Comfort

8.0

Crew

8.6

Overall

8.1

Entertainment

7.2

Food

7.2

Reviews

1 / 10

I appreciated that we departed & arrived on time. I was very cold on the plane, despite wearing 2 jackets, & will bring a blanket next time. I appreciated the hot tea & cookie I was served. I also appreciated that our luggage was not lost or damaged.

Related info for your journey

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

Can I find flights from Washington, D.C. Dulles Intl Airport to Chicago for under $200 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Chicago for under $200. The cheapest flight booked recently is on United Airlines for just $158, but on average you can expect to pay $185.

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

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Chicago under $200. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Chicago is less than $197.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Chicago for under $400?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Chicago within the next 7 days for less than $400.

What days are nonstop flights available from Washington, D.C. Dulles Intl Airport to Chicago?

Nonstop flights can be found on the following days: Thursday, Friday, Saturday.

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

On average 37 flights depart from Washington, D.C. Dulles Intl Airport to Chicago per day.
Early Morning (Midnight to 6am) - 22% of flight departures
Morning (6am - Noon) - 57% of flight departures
Afternoon (Noon - 6pm) - 22% of flight departures

How long is the flight from Washington, D.C. Dulles Intl Airport to Chicago?

United Airlines, Delta, and American Airlines can get you from Washington, D.C. Dulles Intl Airport to Chicago in just under 2h 10m. Your travel time can differ by up to 4h 05m. The distance from Washington, D.C. Dulles Intl Airport to Chicago 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 Washington, D.C. Dulles Intl Airport to Chicago round-trip?

Flying on United Airlines is currently your cheapest option to Chicago, with prices starting at $158. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $177 and $190, respectively. These flights start at 52% lower than the current average price 3 months from now.

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

One-way options have recently been found by users for as low as $79 on United Airlines. Other airlines that offer cheap prices include Delta from $89 and American Airlines from $117 one-way.

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Chicago?

Before booking your flight to Chicago from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Ethiopian Air (78%), Egypt Air (78%), ANA( 74%).

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Chicago?

On average you can expect to pay $473 for a flight from Washington, D.C. Dulles Intl Airport to Chicago. The cheapest flight overall is $89 while the most popular route, (Washington, D.C. Dulles Intl - Chicago O'Hare Intl) is currently priced at $177.

What does IAD to ORD mean?

Washington, D.C. Dulles Intl Airport is IAD and Chicago O'Hare Intl Airport is ORD. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD) are other airports near this flight route and their unique identifiers/IATA codes.

Top 3 airlines flying from Dulles Intl to Chicago

The chart below displays the airlines Cheapflights users traveling from Dulles Intl to Chicago choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$105Average$429FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$208Average$338FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$260Average$446FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Hourly flight availability from Dulles Intl to Chicago

See what time of day planes typically take off from Dulles Intl to Chicago
12%of flight departuresEarly morningMidnight to 6 am
47%of flight departuresMorning6 am to noon
26%of flight departuresAfternoonNoon to 6 pm
15%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Dulles Intl to Chicago

See how many times per day planes take to the skies headed from Dulles Intl to Chicago
Sunday8daily flights
Monday24daily flights
Tuesday22daily flights
Wednesday19daily flights
Thursday21daily flights
Friday22daily flights
Saturday12daily flights

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How does Cheapflights help users find flights from Dulles Intl to Chicago?

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Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Chicago?

Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl to Chicago for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Dulles Intl to Chicago with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dulles Intl to Chicago flexibly with Cheapflights today.

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Of course! You can now track prices for flights from Dulles Intl to Chicago and get an alert from Cheapflights when they change. Have a valid email address ready and make a flight search when you’re ready to set up your price alert.

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