Cheap flights from Illinois (IL) to Dulles Intl (IAD)

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

All the information you need to plan the best null to IAD flight in 2021: compare Illinois to Dulles Intl flight prices with the expected peak season, weather and rainfall in Dulles Intl.
What is the cheapest month to fly from Illinois to Washington Dulles Intl Airport?

Our data shows that July tends to be the cheapest month to fly to Washington Dulles Intl Airport from Illinois. Users have commonly found prices around $220 for the month, but tickets can be as low as $74. Due to multiple factors, prepare for potentially higher prices in November.

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

Users have found that booking a flight from Illinois to Washington Dulles Intl Airport at least 14 days early can save you up to 9% on average compared to booking a flight this week. If booking 14 days before your flight isn’t an option for you, users have found flights from Illinois to Washington Dulles Intl Airport for as little as $196 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 $227 for flights departing within the next 3 days.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Washington Dulles Intl Airport as you normally would.

Cheap flights from Illinois to Dulles Intl in November, December 2021

The best prices found for Illinois to IAD flights for November, December
7 Dec - 8 Dec
$111pp
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
8 Dec - 8 Dec
$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
11 Dec - 12 Dec
$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

Illinois to Dulles Intl 2022 flight deals

Cheap flights to Dulles Intl from Illinois found for next year
7 Dec - 8 Dec
$111pp
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
8 Dec - 8 Dec
$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
11 Dec - 12 Dec
$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

Non-stop flights to Dulles Intl from Illinois

Save time with Illinois to Dulles Intl direct flight deals
18 Jan - 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
6 Jan - 18 Jan
$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
14 Dec - 16 Dec
$157pp
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 Illinois to Dulles Intl

Late deals on round-trip flights to Dulles Intl from Illinois, departing today and this week
7 Dec - 8 Dec
$111pp
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
8 Dec - 8 Dec
$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
6 Dec - 7 Dec
$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

One-way flights to Dulles Intl from Illinois

The cheapest one-way flights from Illinois to Dulles Intl
2:00 am - 5:26 am
Frontier
2 Stops
26h 26m
ORD - IAD
Frontier
$91
Kiwi.com
5:40 am - 12:34 pm
American Airlines
1 Stop
5h 54m
ORD - IAD
American Airlines
5:22 am - 10:35 am
Delta
1 Stop
4h 13m
MDW - IAD
Delta
$113
Delta

Related info for your journey

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

Flight FAQs

From Illinois to Dulles Intl

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

Some of our airline partners flying from Illinois to Washington Dulles Intl have new flexible policies in place due to COVID-19. United Airlines, Delta, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

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

Yes, there are multiple flights from Illinois to Washington Dulles Intl Airport for under $200. The cheapest flight booked recently is on United Airlines for just $120, but on average you can expect to pay $151.

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

Cheapflights has at least 20 direct flights from Illinois to Washington Dulles Intl Airport under $200. A good price for a nonstop flight from Illinois to Washington Dulles Intl Airport is less than $203.

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

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

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

Days when nonstop flights are available for this flight are: Sunday, Wednesday, Thursday, Friday, Saturday.

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

20 flight departures from Illinois to Washington Dulles Intl Airport per day on average.
Afternoon (Noon - 6pm) - 30% of flight departures
Evening (6pm - Midnight) - 70% of flight departures

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

A quick flight from Illinois to Washington Dulles Intl Airport can take about 5h 07m. United Airlines provides one of the quickest options available for as low as $120. The distance from Illinois to Washington Dulles Intl Airport is about 590 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

The cheapest airlines for a one-way flight from Illinois to Washington Dulles Intl Airport are United Airlines ($69), American Airlines ($76), and Delta ($78).

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

Before booking your flight from Illinois to Washington Dulles Intl Airport check out the most popular airlines for this route: Major Airline, American Airlines or Delta.

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

The cheapest flight price from Illinois to Washington Dulles Intl Airport is $80. On average you can expect to pay $187. The most popular route, (Chicago O'Hare Intl - Washington Dulles Intl), can usually be booked for $157.

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

The top 3 most reliable airlines when flying from Illinois to Washington Dulles Intl Airport are Asiana Airlines (100%), Republic Airways (100%) and Austrian Airlines (91%).

What are the most popular routes from Illinois to Washington Dulles Intl Airport?

The most popular flight routes from Illinois to Washington Dulles Intl Airport are Chicago O'Hare Intl - Washington Dulles Intl, Chicago Midway - Washington Dulles Intl and Lambert-St Louis - Washington Dulles Intl.

Related searches

Flights to Dulles Intl from Illinois
Flights to Illinois Flights to Dulles Intl Flights from Dulles Intl

Rent a Car

Car Rentals at Dulles Intl

COVID Restrictions

View COVID Travel Restrictions for Dulles Intl (IAD)

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

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

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

COVID-19 testing requirements
Visitors from Illinois 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 Illinois are not required to quarantine after entering Washington Dulles Intl.

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

Returning to Illinois 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 Illinois.

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

Hide COVID Travel Restrictions for Dulles Intl (IAD)

Departure points for flights from Illinois to Dulles Intl

Select to see more specific information for flights to Dulles Intl from all departure points in Illinois.

Destination information for Dulles Intl

Things to know before you go - useful duration and weather info for your trip from Illinois to Dulles Intl.
Flight duration from Illinois to Washington Dulles Intl
1h 57m
Average temperature for November in Dulles Intl
59.0 °F
Avg rainfall for November in Dulles Intl
3.7 ″

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Airports servicing Washington

Top 4 airlines flying from Illinois to Washington Dulles Intl

The chart below displays the airlines Cheapflights users traveling from Illinois 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 $323 No cancel fee 71%
Spirit Airlines
$97 $188 No cancel fee 65%
Delta
$105 $366 No cancel fee N/A
United Airlines
$224 $354 No cancel fee 69%
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