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

For as low as $149, Frontier can have you in Illinois from Washington, D.C. Dulles Intl Airport in 2h 08m. Washington, D.C. Dulles Intl Airport and Illinois are separated by a distance of 587 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 Washington, D.C. Dulles Intl Airport to Illinois one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $78. Users have also found prices from $83 and $84 on United Airlines and Southwest, respectively.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Illinois?

The most popular route from Washington, D.C. Dulles Intl Airport to Illinois is Washington, D.C. Dulles Intl - Chicago O'Hare Intl. You may also consider Washington, D.C. Dulles Intl - Chicago Midway or Washington, D.C. Dulles Intl - Lambert-St Louis.

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

Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Illinois? While on average our users pay $973, our data indicates the cheapest price to be $128. The most popular route (Washington, D.C. Dulles Intl - Chicago O'Hare Intl), is priced around $117.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Illinois on time: Egyptair (92%), Air China (91%), Ethiopian Air (74%).

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

Find a great deal and save up to 76% by booking at least 51 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. Dulles Intl Airport to Illinois within the next two weeks, with the cheapest ticket starting at $273.

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

The best pricing can be found in the month of September. Prices to Illinois from Washington, D.C. Dulles Intl Airport average $248. You can even find prices in September for less than $248, as users have found deals to Illinois from as low as $70. The month of April appears to be one of the more expensive times to travel to Illinois from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 10%.

Can I find deals for flights from Dulles Intl to Illinois that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Illinois?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Illinois.

Can I find deals for business class flights from Dulles Intl to Illinois?

Yes. Cheapflights offers flight deals from Dulles Intl to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$67+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Illinois

Q: How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Illinois?

Airfare is below average for this route at the moment. Washington, D.C. Dulles Intl Airport to Illinois flights typically cost between $229 and $386 in October. The cheapest round-trip price found within the last 3 days was $142 on Frontier (Oct 25-Oct 27).

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Cheap flight deals from Dulles Intl to Illinois

Round-trip from	$136 (Kiwi.com)
One-way from	$67 (United Airlines)
Popular in	April
Cheapest in	September
Average price	$201
Good round-trip deal	$307 or less
Good one-way deal	$211 or less

From Washington, D.C. Dulles Intl to Illinois

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One-way flight from Washington, D.C. Dulles Intl to Illinois

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Highest demand for flights based on searches. 7% potential increase in price ($21 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Illinois.

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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Illinois.

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Find flight deals from Dulles Intl to Illinois

Cheapest flights from Dulles Intl to Illinois
Explore the most affordable flight options available from Dulles Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Sat 10/114:22 pmIAD - MDW

1 stop7h 25mFrontier

Mon 10/139:00 amMDW - IAD

1 stop8h 45mFrontier

Deal found 9/10

$137

Tue 10/149:00 amIAD - MDW

1 stop5h 38mFrontier

Fri 10/179:45 amMDW - IAD

1 stop8h 34mFrontier

Deal found 9/10

$139

Thu 10/21:55 pmIAD - ORD

1 stop10h 44mFrontier

Mon 10/610:42 amORD - IAD

1 stop11h 34mFrontier

Deal found 9/11

$142

Sat 10/254:22 pmIAD - MDW

1 stop7h 25mFrontier

Mon 10/2712:03 pmMDW - IAD

1 stop10h 19mFrontier

Deal found 9/11

$142

Fri 11/75:34 pmIAD - MDW

1 stop5h 34mFrontier

Sat 11/81:37 pmMDW - IAD

1 stop9h 18mFrontier

Deal found 9/10

$143

Wed 9/179:15 amIAD - ORD

1 stop9h 24mFrontier

Fri 9/198:49 pmORD - IAD

1 stop20h 35mFrontier

Deal found 9/10

$144

Fri 9/267:14 pmIAD - MDW

1 stop15h 37mFrontier

Sun 9/286:21 amMDW - IAD

1 stop13h 58mFrontier

Deal found 9/10

$144

Sun 9/287:14 pmIAD - ORD

1 stop25h 30mFrontier

Wed 10/111:45 amORD - IAD

1 stop7h 10mFrontier

Deal found 9/10

$145

Thu 9/257:14 pmIAD - MDW

1 stop14h 39mFrontier

Sun 9/286:21 amMDW - IAD

1 stop13h 58mFrontier

Deal found 9/11

$145

Sat 9/207:00 amIAD - ORD

1 stop10h 45mFrontier

Tue 9/2311:45 amORD - IAD

1 stop7h 10mFrontier

Deal found 9/10

$146

Tue 11/48:40 amIAD - MDW

1 stop29h 01mFrontier

Fri 11/76:15 amMDW - IAD

1 stop9h 19mFrontier

Deal found 9/10

$146

Fri 10/310:10 pmIAD - ORD

Nonstop2h 05mUnited Airlines

Sun 10/58:45 amORD - IAD

Nonstop2h 05mUnited Airlines

Deal found 9/10

$149

Best flights from Dulles Intl to Illinois
Discover carefully curated flight deals from Dulles Intl to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Wed 9/249:15 amIAD - MDW

1 stop7h 43mFrontier

Sat 9/2710:51 amMDW - IAD

1 stop6h 33mFrontier

Deal found 9/10

$143

Fri 11/710:35 pmIAD - ORD

Nonstop2h 08mUnited Airlines

Sun 11/168:50 amORD - IAD

Nonstop1h 59mUnited Airlines

Deal found 9/10

$149

Tue 12/27:01 amIAD - ORD

1 stop6h 04mDelta

Fri 12/55:03 pmORD - IAD

1 stop5h 05mDelta

Deal found 9/11

$197

Thu 9/257:14 pmIAD - EVV

1 stop17h 28mMultiple Airlines

Mon 10/65:35 pmEVV - IAD

2 stops25h 11mMultiple Airlines

Deal found 9/11

$249

Thu 10/3011:41 amIAD - MLI

1 stop6h 15mAmerican Airlines

Tue 11/45:22 pmMLI - IAD

1 stop4h 45mAmerican Airlines

Deal found 9/9

$249

Sat 11/16:40 amIAD - STL

1 stop9h 15mSouthwest

Sun 11/25:30 amSTL - IAD

1 stop6h 40mSouthwest

Deal found 9/9

$258

Fri 10/3110:35 pmIAD - ORD

Nonstop2h 08mUnited Airlines

Sun 11/28:50 amORD - IAD

Nonstop1h 59mUnited Airlines

Deal found 9/11

$149

Mon 10/1310:10 pmIAD - ORD

Nonstop2h 05mUnited Airlines

Sat 10/1810:45 amORD - IAD

Nonstop2h 06mUnited Airlines

Deal found 9/10

$179

Tue 10/77:05 amIAD - MDW

1 stop5h 48mDelta

Wed 10/156:23 pmMDW - IAD

1 stop3h 37mDelta

Deal found 9/10

$197

Tue 9/306:00 amIAD - MDW

1 stop3h 40mDelta

Tue 9/3012:43 pmMDW - IAD

1 stop4h 56mDelta

Deal found 9/11

$197

Thu 9/258:59 pmIAD - MDW

1 stop16h 45mFrontier

Sun 9/286:21 amMDW - IAD

1 stop13h 58mFrontier

Deal found 9/11

$226

Sat 10/46:30 amIAD - ORD

Nonstop2h 11mUnited Airlines

Sat 10/45:55 pmORD - IAD

Nonstop2h 00mUnited Airlines

Deal found 9/11

$187

Last-minute flights from Dulles Intl to Illinois
Discover last-minute flight deals from Dulles Intl to Illinois. Data last updated September 11, 2025 and is based on user searches.

Wed 9/179:15 amIAD - ORD

1 stop9h 24mFrontier

Fri 9/198:49 pmORD - IAD

1 stop20h 35mFrontier

Deal found 9/10

$144

Thu 9/181:55 pmIAD - ORD

1 stop11h 15mFrontier

Thu 9/255:10 amORD - IAD

1 stop6h 45mFrontier

Deal found 9/11

$149

Thu 9/181:55 pmIAD - ORD

1 stop11h 15mFrontier

Sat 9/205:40 pmORD - IAD

1 stop5h 15mFrontier

Deal found 9/11

$151

Fri 9/191:55 pmIAD - ORD

1 stop11h 15mFrontier

Mon 9/225:10 amORD - IAD

1 stop6h 45mFrontier

Deal found 9/10

$145

Sat 9/207:00 amIAD - ORD

1 stop10h 45mFrontier

Tue 9/2311:45 amORD - IAD

1 stop7h 10mFrontier

Deal found 9/10

$146

Tue 9/239:15 amIAD - MDW

1 stop7h 43mFrontier

Thu 9/254:56 pmMDW - IAD

1 stop6h 19mFrontier

Deal found 9/10

$143

Thu 9/257:14 pmIAD - MDW

1 stop14h 39mFrontier

Sun 9/286:21 amMDW - IAD

1 stop13h 58mFrontier

Deal found 9/11

$145

Fri 9/267:14 pmIAD - MDW

1 stop15h 37mFrontier

Sun 9/286:21 amMDW - IAD

1 stop13h 58mFrontier

Deal found 9/10

$144

Sat 9/277:14 pmIAD - MDW

1 stop15h 04mFrontier

Mon 9/295:15 pmMDW - IAD

1 stop6h 00mFrontier

Deal found 9/10

$150

Sat 10/114:22 pmIAD - MDW

1 stop7h 25mFrontier

Mon 10/139:00 amMDW - IAD

1 stop8h 45mFrontier

Deal found 9/10

$137

Tue 10/149:00 amIAD - MDW

1 stop5h 38mFrontier

Fri 10/179:45 amMDW - IAD

1 stop8h 34mFrontier

Deal found 9/10

$139

Sat 10/254:22 pmIAD - MDW

1 stop7h 25mFrontier

Mon 10/2712:03 pmMDW - IAD

1 stop10h 19mFrontier

Deal found 9/11

$142

One-way flights from Dulles Intl to Illinois
Search for one-way flight options from Dulles Intl to Illinois. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Tue 12/168:40 amIAD - STL

Nonstop2h 27mUnited Airlines

Deal found 9/11

$67

Thu 11/136:00 amIAD - STL

1 stop5h 12mFrontier

Deal found 9/8

$71

Thu 10/236:15 amIAD - STL

1 stop5h 22mFrontier

Deal found 9/10

$72

Thu 11/66:00 amIAD - STL

1 stop5h 12mFrontier

Deal found 9/9

$73

Sun 10/126:15 amIAD - STL

1 stop5h 22mFrontier

Deal found 9/9

$76

Thu 10/96:15 amIAD - STL

1 stop5h 22mFrontier

Deal found 9/10

$77

Sat 10/119:38 pmIAD - STL

1 stop16h 08mFrontier

Deal found 9/11

$78

Fri 10/249:58 pmIAD - ORD

1 stop18h 41mFrontier

Deal found 9/10

$78

Fri 9/266:10 amIAD - MDW

1 stop10h 50mFrontier

Deal found 9/10

$78

Thu 9/186:10 amIAD - STL

1 stop9h 54mFrontier

Deal found 9/10

$79

Mon 11/36:18 pmIAD - ORD

1 stop6h 53mFrontier

Deal found 9/10

$79

Thu 10/21:55 pmIAD - MDW

1 stop10h 46mFrontier

Deal found 9/10

$79

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Chicago

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

Wed 9/24

9:15 am-3:58 pm

1 stop7h 43m

Chicago Midway

Sat 9/27

10:51 am-6:24 pm

1 stop6h 33m

$143

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Fri 11/7

10:35 pm-11:43 pm

Nonstop2h 08m

Chicago O'Hare Intl

Sun 11/16

8:50 am-11:49 am

Nonstop1h 59m

$149

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Fri 10/31

10:35 pm-11:43 pm

Nonstop2h 08m

Chicago O'Hare Intl

Sun 11/2

8:50 am-11:49 am

Nonstop1h 59m

$149

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Mon 10/13

10:10 pm-11:15 pm

Nonstop2h 05m

Chicago O'Hare Intl

Sat 10/18

10:45 am-1:51 pm

Nonstop2h 06m

$179

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Sat 10/4

6:30 am-7:41 am

Nonstop2h 11m

Chicago O'Hare Intl

Sat 10/4

5:55 pm-8:55 pm

Nonstop2h 00m

$187

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Tue 12/30

10:33 pm-11:44 pm

Nonstop2h 11m

Chicago O'Hare Intl

Wed 12/31

9:15 pm-12:15 am

Nonstop2h 00m

$187

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Tue 12/2

7:01 am-12:05 pm

1 stop6h 04m

Chicago O'Hare Intl

Fri 12/5

5:03 pm-11:08 pm

1 stop5h 05m

$197

Washington, D.C.Chicago

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

Tue 10/7

7:05 am-11:53 am

1 stop5h 48m

Chicago Midway

Wed 10/15

6:23 pm-11:00 pm

1 stop3h 37m

$197

Washington, D.C.Chicago

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

Tue 9/30

6:00 am-8:40 am

1 stop3h 40m

Chicago Midway

Tue 9/30

12:43 pm-6:39 pm

1 stop4h 56m

$197

Washington, D.C.Chicago

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

Wed 10/1

6:00 am-8:40 am

1 stop3h 40m

Chicago Midway

Sat 10/4

6:15 pm-11:26 pm

1 stop4h 11m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results

...

Best time to book a flight from Dulles Intl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Illinois

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Illinois?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Illinois (average of $245). Flying from Washington, D.C. Dulles Intl Airport to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to IL?

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

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Illinois

The most flights from IAD to USIL are scheduled on a Thursday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Illinois?

Reviews of airlines servicing Illinois

See what other customers who have flown with Delta, United Airlines, and American Airlines from Washington, D.C. Dulles Intl Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,960 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,937 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.8

Fair

3,177 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to Illinois?
For as low as $149, Frontier can have you in Illinois from Washington, D.C. Dulles Intl Airport in 2h 08m. Washington, D.C. Dulles Intl Airport and Illinois are separated by a distance of 587 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 Washington, D.C. Dulles Intl Airport to Illinois one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $78. Users have also found prices from $83 and $84 on United Airlines and Southwest, respectively.
What are the most popular routes from Washington, D.C. Dulles Intl Airport to Illinois?
The most popular route from Washington, D.C. Dulles Intl Airport to Illinois is Washington, D.C. Dulles Intl - Chicago O'Hare Intl. You may also consider Washington, D.C. Dulles Intl - Chicago Midway or Washington, D.C. Dulles Intl - Lambert-St Louis.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Illinois?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Illinois on time: Egyptair (92%), Air China (91%), Ethiopian Air (74%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Illinois?
Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Illinois? While on average our users pay $973, our data indicates the cheapest price to be $128. The most popular route (Washington, D.C. Dulles Intl - Chicago O'Hare Intl), is priced around $117.
Can I find deals for flights from Dulles Intl to Illinois that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Illinois?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Illinois.
Can I find deals for business class flights from Dulles Intl to Illinois?
Yes. Cheapflights offers flight deals from Dulles Intl to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Illinois?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Illinois (average of $245). Flying from Washington, D.C. Dulles Intl Airport to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Dulles Intl to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$100	Average$196	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$194	Average$440	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$208	Average$447	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$303	Average$413	FlexibilityNo cancel fee	On-time71%

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$67+ Cheap flights from Dulles Intl (IAD) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Illinois with Cheapflights

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Cheap flight deals from Dulles Intl to Illinois

Keep the following information in mind while searching for Dulles Intl to Illinois flight deals. Data was last updated September 11, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to Illinois

Cheapest flights from Dulles Intl to IllinoisExplore the most affordable flight options available from Dulles Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Dulles Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Illinois that are best for you.

Best time to book a flight from Dulles Intl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Illinois

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Illinois?

What is the cheapest time of day to fly from IAD to IL?

Find hourly flight availability from Dulles Intl to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Illinois

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Illinois?

Reviews of airlines servicing Illinois

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Illinois?

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

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

Can I find deals for flights from Dulles Intl to Illinois that include hotel bookings?

How can I find direct flights from Dulles Intl to Illinois?

Can I find deals for business class flights from Dulles Intl to Illinois?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Illinois?

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Alternative routes for Dulles Intl to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Dulles Intl to Illinois

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Cheapest flights from Dulles Intl to Illinois
Explore the most affordable flight options available from Dulles Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.