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

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

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 37 days in advance, which can save you up to 10% on flights from Washington Dulles Intl to Illinois compared to booking the week you need them. Waiting 37 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 $177. For sooner than that we have options available in the next 3 days from $177.

Cheap flights from Washington Dulles Intl to Illinois in August, September 2020

The best prices found for IAD to Illinois flights for August, September
22 Aug - 24 Aug
$161pp
IAD
Washington Dulles Intl
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
 
1 STOP
IAD
Washington Dulles Intl
1 Aug - 3 Aug
$166pp
IAD
Washington Dulles Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
   
2 STOPS
IAD
Washington Dulles Intl
31 Jul - 3 Aug
$167pp
IAD
Washington Dulles Intl
Allegiant Air
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Allegiant Air
Non-Stop
IAD
Washington Dulles Intl

Washington Dulles Intl to Illinois 2020 flight deals

Cheap flights to Illinois from Washington Dulles Intl found for this year
3 Oct - 5 Oct
$160pp
IAD
Washington Dulles Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAD
Washington Dulles Intl
22 Aug - 24 Aug
$161pp
IAD
Washington Dulles Intl
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
 
1 STOP
IAD
Washington Dulles Intl
14 Sep - 17 Sep
$166pp
IAD
Washington Dulles Intl
Delta
 
1 STOP
MDW
Chicago Midway
MDW
Chicago Midway
Delta
 
1 STOP
IAD
Washington Dulles Intl

Non-stop flights to Illinois from Washington Dulles Intl

Save time with Washington Dulles Intl to Illinois direct flight deals
31 Jul - 3 Aug
$167pp
IAD
Washington Dulles Intl
Allegiant Air
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Allegiant Air
Non-Stop
IAD
Washington Dulles Intl
31 Jul - 2 Aug
$177pp
IAD
Washington Dulles Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAD
Washington Dulles Intl
24 Jul - 26 Jul
$297pp
IAD
Washington Dulles Intl
Cape Air
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Cape Air
Non-Stop
IAD
Washington Dulles Intl

Last minute flights from Washington Dulles Intl to Illinois

Late deals on round-trip flights to Illinois from Washington Dulles Intl, departing today and this week
25 Jul - 1 Aug
$236pp
IAD
Washington Dulles Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
 
1 STOP
IAD
Washington Dulles Intl
24 Jul - 2 Aug
$246pp
IAD
Washington Dulles Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
 
1 STOP
IAD
Washington Dulles Intl
29 Jul - 4 Aug
$272pp
IAD
Washington Dulles Intl
Delta
   
2 STOPS
MLI
Moline Quad-City
MLI
Moline Quad-City
Delta
 
1 STOP
IAD
Washington Dulles Intl

One-way flights to Illinois from Washington Dulles Intl

The cheapest one-way flights from Washington Dulles Intl to Illinois
3:02 am - 6:38 am
Allegiant Air
1 Stop
4h 36m
IAD - ORD
Allegiant Air
$82
Ovago
4:43 am - 1:18 pm
Major Airline
2 Stops
9h 35m
IAD - ORD
Major Airline
$86
StudentUniverse
1:49 pm - 2:55 pm
Spirit Airlines
Nonstop
2h 06m
IAD - ORD
Spirit Airlines
$89
Ovago

Related info for your journey

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

Flight FAQs

From Washington Dulles Intl to Illinois

Are flight prices decreasing from Washington Dulles Intl to Illinois 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 Washington Dulles Intl and Illinois 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.

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

Yes, there are multiple flights from Washington Dulles Intl to Illinois for under $200. The cheapest flight booked recently is on Multiple Airlines for just $160, but on average you can expect to pay $177.

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

Cheapflights has at least 3 direct flights from Washington Dulles Intl to Illinois under $200. A good price for a nonstop flight from Washington Dulles Intl to Illinois is less than $213.

Are there last-minute flights available from Washington Dulles Intl to Illinois for under $300?

There are currently 20+ open flights from Washington Dulles Intl to Illinois within the next 7 days for less than $300.

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

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

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

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

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

Most travelers choose Washington Dulles Intl - Chicago O'Hare Intl, Washington Dulles Intl - Chicago Midway or Washington Dulles Intl - Moline Quad-City when deciding on the best route from Washington Dulles Intl to Illinois.

What are the cheapest Flights from Washington Dulles Intl to Illinois?

While on average a flight from Washington Dulles Intl to Illinois is generally $311, our data shows the cheapest flight currently is $122. When looking at the most popular route, (Washington Dulles Intl - Chicago O'Hare Intl), you can expect to pay $149 for that flight.

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

No one likes to see their flight delayed. When booking a flight from Washington Dulles Intl to Illinois consider choosing Egypt Air (100%), Air Canada (94%) or ANA (93%) as they are the most reliable in getting you off to your destination on time.

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

Airlines like Cape Air, Spirit Airlines, and Allegiant Air fly from Washington Dulles Intl to Illinois in about 1h 55m. The time it takes to get you to your destination is usually consistent. Most flights are nonstop.

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

Currently priced at $166, Delta will fly you from Washington Dulles Intl to Illinois and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Allegiant Air and Cape Air - these airlines can fly you to your destination from $167 and $168, respectively.

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

One-way options have recently been found by users for as low as $79 on Allegiant Air. Other airlines that offer cheap prices include Delta from $83 and Major Airline from $86 one-way.

Destination information for Illinois

Things to know before you go. Useful info for your trip from Washington Dulles Intl to Illinois
Flight duration
2h 02m

Airports servicing Washington

Airports servicing

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