How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Flight times from Illinois to Washington, D.C. Dulles Intl Airport vary, but if you’re flying out of Chicago and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 2h 32m on average. Another popular route from Illinois to Washington, D.C. Dulles Intl Airport is flying from Peoria to Washington, D.C. Dulles Intl Airport, which will take roughly 3h 44m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Illinois to Washington, D.C. Dulles Intl?

Frontier, Delta, and United Airlines are the most popular carriers operating from Illinois to Washington, D.C. Dulles Intl

How many operators does momondo search for flights from Illinois to Washington, D.C. Dulles Intl Airport?

As of May 2026, there are 4 operators available to choose from for flights from Illinois to Washington, D.C. Dulles Intl Airport.

How old do you have to be to fly from Illinois to Washington, D.C. Dulles Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$63 Cheap Flights from Illinois to Washington, D.C. Dulles Intl Airport in 2026

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

As of May 2026, 31 flights take off from Illinois and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 8:00AM, with 38% of daily flights taking off in the afternoon.

Q: How many flights depart from Illinois to Washington, D.C. Dulles Intl Airport on average per week?

As of May 2026, 223 flights take off from Illinois and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

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Find the cheapest flights from Illinois to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:23 pm - 8:04 pm

MDW

IAD

21h 41m

1 stop

11:17 am - 10:11 pm

IAD

MDW

11h 54m

1 stop

$221Multiple Airlines

Fri, Jun 12 - Mon, Jun 15

6:55 am - 5:12 pm

ORD

IAD

9h 17m

1 stop

11:07 am - 7:41 pm

IAD

ORD

9h 34m

1 stop

$221Frontier

Fri, May 15 - Sun, May 24

2:47 pm - 2:18 pm

MDW

IAD

22h 31m

1 stop

11:07 am - 11:12 am

IAD

MDW

25h 05m

1 stop

$222Multiple Airlines

Thu, May 21 - Mon, May 25

6:00 am - 5:27 pm

MDW

IAD

10h 27m

1 stop

7:37 pm - 11:12 am

IAD

MDW

16h 35m

1 stop

$223Frontier

Wed, May 27 - Wed, May 27

6:00 am - 11:39 am

MDW

IAD

4h 39m

1 stop

8:29 am - 12:05 pm

IAD

MDW

4h 36m

1 stop

$227Delta

Tue, Jun 16 - Wed, Jun 17

5:30 am - 11:39 am

ORD

IAD

5h 09m

1 stop

11:05 am - 4:26 pm

IAD

ORD

6h 21m

1 stop

$227Delta

Tue, Jun 23 - Wed, Jun 24

4:20 pm - 12:13 am

PIA

IAD

6h 53m

1 stop

8:22 pm - 11:58 pm

IAD

PIA

4h 36m

1 stop

$283American Airlines

Wed, Jun 24 - Tue, Jun 30

1:15 pm - 7:02 pm

MLI

IAD

4h 47m

1 stop

5:42 pm - 9:09 pm

IAD

MLI

4h 27m

1 stop

$291United Airlines

Fri, Jul 17 - Sat, Jul 25

4:24 pm - 12:13 am

MLI

IAD

6h 49m

1 stop

9:20 am - 3:59 pm

IAD

MLI

7h 39m

1 stop

$295American Airlines

Fri, Jun 5 - Tue, Jun 16

5:45 pm - 12:59 am

PIA

IAD

6h 14m

1 stop

6:10 am - 10:10 am

IAD

PIA

5h 00m

1 stop

$330United Airlines

Wed, Jun 10 - Sun, Jun 14

Delta flights from Illinois to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Illinois to Washington, D.C. Dulles Intl Airport flight tickets

Delta

Jun 16

MDW6:00 amChicago Midway

4h 39m

1 stop

IAD11:39 amWashington, D.C. Dulles Intl

Jun 17

IAD8:29 amWashington, D.C. Dulles Intl

4h 36m

1 stop

MDW12:05 pmChicago Midway

$227

Delta

May 28

MDW6:23 amChicago Midway

6h 47m

1 stop

IAD2:10 pmWashington, D.C. Dulles Intl

Jun 9

IAD12:37 pmWashington, D.C. Dulles Intl

4h 39m

1 stop

MDW4:16 pmChicago Midway

$228

Delta

Jun 1

ORD2:59 pmChicago O'Hare Intl

5h 25m

1 stop

IAD9:24 pmWashington, D.C. Dulles Intl

Jun 3

IAD3:08 pmWashington, D.C. Dulles Intl

6h 18m

1 stop

ORD8:26 pmChicago O'Hare Intl

$238

United Airlines flights from Illinois to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Illinois to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines

Jun 10

ORD3:53 pmChicago O'Hare Intl

2h 09m

IAD7:02 pmWashington, D.C. Dulles Intl

Jun 11

IAD8:15 amWashington, D.C. Dulles Intl

2h 21m

ORD9:36 amChicago O'Hare Intl

$233

United Airlines

Jun 2

ORD9:55 pmChicago O'Hare Intl

2h 04m

IAD12:59 amWashington, D.C. Dulles Intl

Jun 4

IAD8:15 amWashington, D.C. Dulles Intl

2h 21m

ORD9:36 amChicago O'Hare Intl

$237

United Airlines

Jun 1

ORD9:55 pmChicago O'Hare Intl

2h 04m

IAD12:59 amWashington, D.C. Dulles Intl

Jun 3

IAD8:15 amWashington, D.C. Dulles Intl

2h 21m

ORD9:36 amChicago O'Hare Intl

$239

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Fri 6/12

9:23 pm-8:04 pm

1 stop21h 41m

Washington, D.C. Dulles Intl

Mon 6/15

11:17 am-10:11 pm

1 stop11h 54m

$221

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Fri 5/15

6:55 am-5:12 pm

1 stop9h 17m

Washington, D.C. Dulles Intl

Sun 5/24

11:07 am-7:41 pm

1 stop9h 34m

$221

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Thu 5/21

2:47 pm-2:18 pm

1 stop22h 31m

Washington, D.C. Dulles Intl

Mon 5/25

11:07 am-11:12 am

1 stop25h 05m

$222

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Wed 5/27

6:00 am-5:27 pm

1 stop10h 27m

Washington, D.C. Dulles Intl

Wed 5/27

7:37 pm-11:12 am

1 stop16h 35m

$223

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Tue 6/16

6:00 am-11:39 am

1 stop4h 39m

Washington, D.C. Dulles Intl

Wed 6/17

8:29 am-12:05 pm

1 stop4h 36m

$227

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Tue 6/23

5:30 am-11:39 am

1 stop5h 09m

Washington, D.C. Dulles Intl

Wed 6/24

11:05 am-4:26 pm

1 stop6h 21m

$227

PeoriaWashington, D.C.

PIA - IAD

PIAIAD

Greater Peoria

Wed 6/24

4:20 pm-12:13 am

1 stop6h 53m

Washington, D.C. Dulles Intl

Tue 6/30

8:22 pm-11:58 pm

1 stop4h 36m

$283

Quickest round-trip

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Fri 7/17

1:15 pm-7:02 pm

1 stop4h 47m

Washington, D.C. Dulles Intl

Sat 7/25

5:42 pm-9:09 pm

1 stop4h 27m

$291

MolineWashington, D.C.

MLI - IAD

MLIIAD

Moline Quad-City

Fri 6/5

4:24 pm-12:13 am

1 stop6h 49m

Washington, D.C. Dulles Intl

Tue 6/16

9:20 am-3:59 pm

1 stop7h 39m

$295

PeoriaWashington, D.C.

PIA - IAD

PIAIAD

Greater Peoria

Wed 6/10

5:45 pm-12:59 am

1 stop6h 14m

Washington, D.C. Dulles Intl

Sun 6/14

6:10 am-10:10 am

1 stop5h 00m

$330

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

In general, October is the cheapest month to fly from Illinois to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $80. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of October, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $86.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $591. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Washington, D.C. Dulles Intl Airport for around $936.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Illinois in the morning is the least expensive time of day to depart. momondo users have found prices as low as $546 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $998 on average. Flights to Washington, D.C. Dulles Intl Airport from Illinois at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Washington, D.C. Dulles Intl flight route?

Fly from Chicago O'Hare Intl to Washington, D.C. Dulles Intl for the best Illinois - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $338 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Illinois for as low as $251 on momondo.

Can stopping save me money on Illinois to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 28% on your flight if you consider stops on a Illinois to Washington, D.C. Dulles Intl Airport flight.

Cheap Illinois to Washington, D.C. Dulles Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Washington, D.C. Dulles Intl Airport

Best Price Found	$160
Fastest flight time	1h 44m
Direct flights	Every day

The best one-way flight to Washington, D.C. Dulles Intl Airport from Illinois in the past 72 hours is $160. The best round-trip flight deal from Illinois to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $402.

The fastest flight from Illinois to Washington, D.C. Dulles Intl Airport takes 1h 44m

Direct flights go from Illinois to Washington, D.C. Dulles Intl Airport every day.

Search flight deals

Frequently asked questions about flying from Illinois to Washington, D.C. Dulles Intl Airport

When did momondo last update prices for flights from Illinois to Washington, D.C. Dulles Intl Airport?
Prices for flights from Illinois to Washington, D.C. Dulles Intl Airport were last updated today.
How many operators does momondo search for flights from Illinois to Washington, D.C. Dulles Intl Airport?
As of May 2026, there are 4 operators available to choose from for flights from Illinois to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Illinois to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for flights between Illinois and Washington, D.C. Dulles Intl Airport, the leading plane model is Boeing 737-900, making up 10.97% of the total bookings. Other popular models include Airbus A321neo with 9.68%, Boeing 787 Dreamliner with 8.42%, and Boeing 787-9 Dreamliner with 7.45%.

Best airlines flying from Illinois to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Illinois to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $100	Free Cancellation	Rating 5.6 2,958 reviews		Search Frontier flights
United Airlines	PriceFrom $212	Free Cancellation	Rating 7.4 9,696 reviews		Search United Airlines flights

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Gettysburg

Arlington

Winchester

Waldorf

Woodbridge

Laurel

Gaithersburg

Colonial Beach

Towson

Fredericksburg

Silver Spring

Rockville

Manassas

Sterling

Linthicum Heights

Tysons

Bethesda

Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Washington, D.C.?

It is quick and easy to find Illinois to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Illinois to Washington, D.C. with flexible booking policies on momondo?

All flight searches from Illinois to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Washington, D.C.?

Once all potential Illinois to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Illinois to Washington, D.C. from $63

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Washington, D.C. departing on 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Illinois to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Illinois to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines flights from Illinois to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Illinois to Washington, D.C. Dulles Intl Airport flight tickets

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

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How to get the cheapest flight ticket from Illinois to Washington, D.C. Dulles Intl Airport

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

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest Illinois to Washington, D.C. Dulles Intl flight route?

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

Can stopping save me money on Illinois to Washington, D.C. Dulles Intl Airport flights?

What is the cheapest airline that flies from Illinois to Washington, D.C. Dulles Intl?

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

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

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Cheap Illinois to Washington, D.C. Dulles Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Washington, D.C. Dulles Intl Airport

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Illinois to Washington, D.C. Dulles Intl Airport

Best airlines flying from Illinois to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Illinois to Washington, D.C. Dulles Intl Airport with momondo

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