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Cheap flights from Illinois to Dulles Intl (IAD) from $80

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 5/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ORD — IAD
Apr 30 — Mai 71
From?
To?
Di 4/30
Di 5/7
1 adult, Economy
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How far in advance should I book a flight from Illinois to Washington, D.C. Dulles Intl Airport?

Users have found that booking a flight from Illinois to Washington, D.C. Dulles Intl Airport at least 46 days early can save you up to 83% on average compared to booking a flight this week. If booking 46 days before your flight isn’t an option for you, users have found flights from Illinois to Washington, D.C. Dulles Intl Airport for as little as $353 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 $432 for flights departing within the next 3 days.

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

Our data shows that September tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Illinois. Users have commonly found prices around $278 for the month, but tickets can be as low as $95. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Illinois to Washington, D.C. 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, D.C. Dulles Intl Airport as you normally would.

Cheap Sun Country Air flights from Illinois to Dulles Intl

Explore cheap flight options specifically provided by Sun Country Air for the route between Illinois and Dulles Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Consider these cheap Sun Country Air flights we've found departing from Illinois to Washington, D.C.. Be sure to come back soon if the deals available don't appeal to you at this time.
Mo 6/108:05 pmORD - IAD
1 stop13h 32mSun Country Air
Mi 6/1211:16 amIAD - ORD
1 stop8h 50mSun Country Air
Deal found 4/25$230
Mo 6/108:05 pmORD - IAD
1 stop13h 32mSun Country Air
Do 6/1312:40 pmIAD - ORD
1 stop6h 02mSun Country Air
Deal found 4/23$245
Do 5/168:00 pmORD - IAD
1 stop16h 02mSun Country Air
Do 5/308:30 amIAD - ORD
1 stop12h 33mSun Country Air
Deal found 4/24$252
Mo 6/36:15 pmORD - IAD
1 stop15h 53mSun Country Air
Mi 6/511:20 amIAD - ORD
1 stop8h 43mSun Country Air
Deal found 4/25$255
Fr 5/318:30 pmORD - IAD
1 stop23h 17mSun Country Air
Fr 6/712:33 pmIAD - ORD
1 stop7h 33mSun Country Air
Deal found 4/24$272
Fr 6/148:05 pmORD - IAD
1 stop15h 52mSun Country Air
Di 6/186:10 pmIAD - ORD
1 stop25h 56mSun Country Air
Deal found 4/24$276

Cheap American Airlines flights from Illinois to Dulles Intl

Explore cheap flight options specifically provided by American Airlines for the route between Illinois and Dulles Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from Illinois to Washington, D.C.. Check back soon if you're not seeing flights that suit your needs.
Di 5/215:15 amORD - IAD
1 stop5h 00mAmerican Airlines
Di 5/285:02 amIAD - ORD
1 stop4h 54mAmerican Airlines
Deal found 4/23$205
Mi 5/156:30 amORD - IAD
1 stop7h 27mAmerican Airlines
So 5/195:02 amIAD - ORD
1 stop4h 54mAmerican Airlines
Deal found 4/24$215
Fr 5/176:30 amORD - IAD
1 stop7h 27mAmerican Airlines
So 5/195:02 amIAD - ORD
1 stop4h 54mAmerican Airlines
Deal found 4/24$225
Sa 9/74:31 pmMLI - IAD
1 stop6h 16mAmerican Airlines
Di 9/105:31 pmIAD - MLI
1 stop5h 24mAmerican Airlines
Deal found 4/25$237
Sa 5/187:30 amORD - IAD
1 stop6h 28mAmerican Airlines
Di 5/218:12 pmIAD - ORD
1 stop4h 47mAmerican Airlines
Deal found 4/24$240
Mi 5/225:15 amORD - IAD
1 stop5h 00mAmerican Airlines
Mi 5/295:02 amIAD - ORD
1 stop4h 54mAmerican Airlines
Deal found 4/24$250
Mi 5/85:04 amSTL - IAD
1 stop5h 11mAmerican Airlines
So 5/125:02 amIAD - STL
1 stop5h 51mAmerican Airlines
Deal found 4/24$312
So 5/55:15 amSTL - IAD
1 stop5h 09mAmerican Airlines
Do 5/305:02 amIAD - STL
1 stop5h 51mAmerican Airlines
Deal found 4/24$350
Sa 5/49:55 amORD - IAD
1 stop4h 09mAmerican Airlines
Di 5/72:14 pmIAD - ORD
1 stop4h 12mAmerican Airlines
Deal found 4/23$382

Cheap Illinois to Dulles Intl flights in April & May 2024

Find cheap flight options from Illinois to Dulles Intl specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Prices were last updated on April 25, 2024.
Listed are some of the best fares we've found on flights departing from Illinois to Washington, D.C. in 2024. Check back regularly for other flight deals.
Di 5/219:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Mi 5/2210:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/24$159
Di 5/289:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
Mi 6/56:30 amIAD - ORD
Nonstop2h 10mUnited Airlines
Deal found 4/24$172
Fr 5/179:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Di 5/2110:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/25$174
Mi 5/1512:42 pmMDW - IAD
1 stop6h 51mDelta
Mi 5/226:00 amIAD - MDW
1 stop4h 06mDelta
Deal found 4/25$178
Mi 5/1512:31 pmORD - IAD
1 stop7h 02mDelta
Mi 5/226:00 amIAD - ORD
1 stop4h 20mDelta
Deal found 4/25$178
Fr 5/179:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Mo 5/2010:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/24$189
Sa 5/255:47 pmMDW - IAD
1 stop4h 05mDelta
Mi 5/296:00 amIAD - MDW
1 stop4h 06mDelta
Deal found 4/24$193
Fr 5/315:57 pmORD - IAD
1 stop4h 58mDelta
Di 6/46:00 amIAD - ORD
1 stop4h 20mDelta
Deal found 4/24$193
Do 5/169:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Mo 5/2010:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/25$198

Illinois to Dulles Intl 2024 flight deals

Discover exclusive flight deals for travel between Illinois and Dulles Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Listed are some of the best fares we've found on flights departing from Illinois to Washington, D.C. in 2024. Check back regularly for other flight deals.
Di 5/219:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Mi 5/2210:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/24$159
Di 5/289:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
Mi 6/56:30 amIAD - ORD
Nonstop2h 10mUnited Airlines
Deal found 4/24$172
Fr 5/179:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Di 5/2110:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/25$174
Mi 5/1512:42 pmMDW - IAD
1 stop6h 51mDelta
Mi 5/226:00 amIAD - MDW
1 stop4h 06mDelta
Deal found 4/25$178
Mi 5/1512:31 pmORD - IAD
1 stop7h 02mDelta
Mi 5/226:00 amIAD - ORD
1 stop4h 20mDelta
Deal found 4/25$178
Mi 6/127:00 amORD - IAD
Nonstop1h 55mUnited Airlines
Sa 6/1510:15 pmIAD - ORD
Nonstop2h 05mUnited Airlines
Deal found 4/24$184
Fr 5/179:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Mo 5/2010:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/24$189
Sa 5/255:47 pmMDW - IAD
1 stop4h 05mDelta
Mi 5/296:00 amIAD - MDW
1 stop4h 06mDelta
Deal found 4/24$193
Fr 5/315:57 pmORD - IAD
1 stop4h 58mDelta
Mi 6/56:00 amIAD - ORD
1 stop4h 20mDelta
Deal found 4/25$193

Non-stop flights to Dulles Intl from Illinois

Discover non-stop flight options from Illinois to Dulles Intl. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
To help reduce your travel time, choose from one of these non-stop flights from Illinois to Washington, D.C.. Search for alternative flights from Illinois to Washington, D.C. by utilizing the search form above.
Mi 5/151:23 pmORD - IAD
Nonstop2h 00mUnited Airlines
Mi 5/228:15 pmIAD - ORD
Nonstop2h 14mUnited Airlines
Deal found 4/24$159
Di 5/289:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
Mi 6/56:30 amIAD - ORD
Nonstop2h 10mUnited Airlines
Deal found 4/24$172
Sa 5/186:05 pmORD - IAD
Nonstop1h 56mUnited Airlines
Mi 5/226:45 amIAD - ORD
Nonstop2h 09mUnited Airlines
Deal found 4/24$174
Mi 6/127:00 amORD - IAD
Nonstop1h 55mUnited Airlines
Sa 6/1510:15 pmIAD - ORD
Nonstop2h 05mUnited Airlines
Deal found 4/24$184
Sa 5/189:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Mo 5/2010:23 pmIAD - ORD
Nonstop2h 07mUnited Airlines
Deal found 4/25$189
Sa 5/259:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
Mo 5/278:24 amIAD - ORD
Nonstop2h 11mUnited Airlines
Deal found 4/25$199
Di 7/98:53 amORD - IAD
Nonstop1h 59mUnited Airlines
Fr 7/126:30 amIAD - ORD
Nonstop2h 10mUnited Airlines
Deal found 4/24$200
Di 6/49:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
So 6/96:30 amIAD - ORD
Nonstop2h 10mUnited Airlines
Deal found 4/24$201
Di 6/119:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
So 6/1610:15 pmIAD - ORD
Nonstop2h 05mUnited Airlines
Deal found 4/23$204

Illinois to Dulles Intl flights leaving soon

Find last-minute flight options from Illinois to Dulles Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Have a look at some of the last-minute flights available departing from Illinois to Washington, D.C.. To prevent any unwanted surprises, users should verify their flight info before booking.
Di 5/72:35 pmSTL - IAD
3 stops19h 45mMultiple Airlines
Mi 5/151:00 pmIAD - STL
3 stops29h 29mMultiple Airlines
Deal found 4/24$285
Di 5/72:35 pmSTL - IAD
3 stops19h 45mMultiple Airlines
Do 5/1611:45 amIAD - STL
1 stop25h 35mMultiple Airlines
Deal found 4/24$296
Di 5/72:35 pmSTL - IAD
3 stops19h 45mMultiple Airlines
Mo 5/131:00 pmIAD - STL
3 stops21h 39mMultiple Airlines
Deal found 4/24$298
Mi 5/86:00 amSTL - IAD
1 stop6h 25mUnited Airlines
So 5/128:32 amIAD - STL
Nonstop2h 27mUnited Airlines
Deal found 4/24$305
Mi 5/85:04 amSTL - IAD
1 stop5h 11mAmerican Airlines
So 5/125:02 amIAD - STL
1 stop5h 51mAmerican Airlines
Deal found 4/24$312
Sa 5/48:48 amORD - IAD
Nonstop1h 58mUnited Airlines
Sa 8/1710:10 pmIAD - ORD
Nonstop2h 05mUnited Airlines
Deal found 4/24$317
Fr 5/37:15 amORD - IAD
1 stop4h 29mDelta
Mi 6/56:00 amIAD - ORD
1 stop4h 20mDelta
Deal found 4/24$321
Di 5/72:35 pmSTL - IAD
3 stops19h 45mMultiple Airlines
Sa 5/188:25 amIAD - STL
3 stops35h 15mMultiple Airlines
Deal found 4/24$325
Di 5/72:35 pmSTL - IAD
3 stops19h 45mMultiple Airlines
So 5/128:30 amIAD - STL
2 stops31h 44mMultiple Airlines
Deal found 4/24$335

One-way flights to Dulles Intl from Illinois

Search for one-way flight options from Illinois to Dulles Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Some of the best available deals we've found on one-way flights from Illinois to Washington, D.C.. Users in need of a round-trip flight from Illinois to Washington, D.C. instead should update the search form at the top of page.
Mi 5/299:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
Deal found 4/24$80
Mi 6/125:45 pmMDW - IAD
1 stop4h 13mDelta
Deal found 4/25$89
Mi 5/293:32 pmORD - IAD
1 stop7h 23mDelta
Deal found 4/23$89
Di 5/215:35 pmSTL - IAD
1 stop4h 43mUnited Airlines
Deal found 4/23$89
Sa 5/259:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
Deal found 4/24$95
Di 5/289:45 pmORD - IAD
Nonstop2h 02mUnited Airlines
Deal found 4/25$97
Mo 6/178:05 pmORD - IAD
1 stop13h 52mSun Country Air
Deal found 4/24$98
Do 5/169:20 pmORD - IAD
Nonstop1h 52mUnited Airlines
Deal found 4/24$100
So 6/3010:15 pmORD - IAD
1 stop10h 29mSun Country Air
Deal found 4/24$103

Find flights from Illinois to Dulles Intl within your budget

Customize your flight search to find flights from Illinois to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$159 - $304

Route

Depart

Return

Price

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Mi 5/15

Nonstop2h 00m

Washington, D.C. Dulles Intl

Mi 5/22

Nonstop2h 14m

$159

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Di 5/28

Nonstop2h 02m

Washington, D.C. Dulles Intl

Mi 6/5

Nonstop2h 10m

$172

Chicago MidwayWashington, D.C. Dulles Intl

MDW - IAD

MDWIAD

Chicago Midway

Mi 5/15

1 stop6h 51m

Washington, D.C. Dulles Intl

Mi 5/22

1 stop4h 06m

$178

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Mi 5/15

1 stop7h 02m

Washington, D.C. Dulles Intl

Mi 5/22

1 stop4h 20m

$178

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Di 5/21

1 stop5h 00m

Washington, D.C. Dulles Intl

Di 5/28

1 stop4h 54m

$205

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Mo 6/10

1 stop13h 32m

Washington, D.C. Dulles Intl

Mi 6/12

1 stop8h 50m

$230

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Di 5/7

3 stops23h 42m

Washington, D.C. Dulles Intl

Mo 5/13

3 stops24h 15m

$246

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Mi 5/29

1 stop11h 39m

Washington, D.C. Dulles Intl

Sa 6/1

Nonstop2h 10m

$277

Chicago O'Hare IntlWashington, D.C. Dulles Intl

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Mi 5/29

3 stops13h 35m

Washington, D.C. Dulles Intl

Sa 6/1

Nonstop2h 10m

$304

Flights are sorted by cheapest first

Deals found on 4/24

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated April 25, 2024.
See what other customers who have flown with Sun Country Air, American Airlines and United Airlines from Illinois to Washington, D.C. have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,180 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Comfort

8.1

Food

7.4

Reviews

1 / 10

I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.

Southwest
8.2
Very good
6,180 reviews
Southwest
8.2
Very good
6,180 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Comfort

8.1

Food

7.4

Reviews

1 / 10

I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.

Delta
8.1
Very good
10,975 reviews
Southwest
8.2
Very good
6,180 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Comfort

8.1

Food

7.4

Reviews

1 / 10

I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.

Qatar Airways
7.7
Good
4,479 reviews
Southwest
8.2
Very good
6,180 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Comfort

8.1

Food

7.4

Reviews

1 / 10

I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.

Avianca
7.5
Good
3,919 reviews
Southwest
8.2
Very good
6,180 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Comfort

8.1

Food

7.4

Reviews

1 / 10

I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.

Porter Airlines
7.4
Good
438 reviews
Southwest
8.2
Very good
6,180 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Comfort

8.1

Food

7.4

Reviews

1 / 10

I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.

Related info for your journey

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

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

    Yes, there are multiple flights from Illinois to Washington, D.C. Dulles Intl Airport for under $200. The cheapest flight booked recently is on United Airlines for just $159, but on average you can expect to pay $191.

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

    Cheapflights has at least 20 direct flights from Illinois to Washington, D.C. Dulles Intl Airport under $200. A good price for a nonstop flight from Illinois to Washington, D.C. Dulles Intl Airport is less than $209.

  • Are there last-minute flights available from Illinois to Washington, D.C. Dulles Intl Airport for under $300?

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

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

    Days when nonstop flights are available for this flight are: Monday, Tuesday, Thursday, Friday, Saturday.

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

    33 flight departures from Illinois to Washington, D.C. Dulles Intl Airport per day on average.
    Morning (6am - Noon) - 55% of flight departures
    Afternoon (Noon - 6pm) - 3% of flight departures
    Evening (6pm - Midnight) - 42% of flight departures

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

    United Airlines, Delta, and American Airlines can get you from Illinois to Washington, D.C. Dulles Intl Airport in just under 2h. Your travel time can differ by up to 4h 51m. Illinois and Washington, D.C. Dulles Intl Airport are separated by a distance of 590 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $80. Delta flights start at $89 while deals on Sun Country Air start at $98 one-way.

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

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

  • What are the most popular airlines that fly from Illinois to Washington, D.C. Dulles Intl Airport?

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

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

    The top 3 most reliable airlines when flying from Illinois to Washington, D.C. Dulles Intl Airport are Air Canada (87%), Air New Zealand (87%) and Copa Airlines (85%).

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

    The cheapest flight price from Illinois to Washington, D.C. Dulles Intl Airport is $82. On average you can expect to pay $948. The most popular route, (Chicago O'Hare Intl - Washington, D.C. Dulles Intl), can usually be booked for $178.

  • What does ORD to IAD mean?

    This is defined as Chicago O'Hare Intl Airport (ORD) and Washington, D.C. Dulles Intl Airport (IAD). Codes like Washington, D.C. Dulles Intl Airport are often used to just call airports uniquely. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

  • Can I find deals for flights from Illinois to Dulles Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Dulles Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Dulles Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Dulles Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Illinois to Dulles Intl that allow pets onboard?

    Many airlines flying from Illinois to Dulles Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Dulles Intl?

    Yes, you can often find last-minute deals on Illinois to Dulles Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to Washington, D.C. Dulles Intl Airport flight deals updated?

    The Illinois to Washington, D.C. Dulles Intl Airport flight deals you see on this page were last updated on 4/25.

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Top 3 airlines flying from Illinois to Dulles Intl

Discover the top 3 airlines that operate flights from Illinois to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$178Average$416FlexibilityNo cancel feeOn-time69%
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DeltaCheapest$211Average$436FlexibilityNo cancel feeOn-timeN/A
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American AirlinesCheapest$219Average$326FlexibilityNo cancel feeOn-time71%
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Search flights from Illinois to Dulles Intl by cabin class

Find flights from Illinois to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Illinois to Dulles Intl

Find hourly flight availability from Illinois to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2024.
1%of flight departuresEarly morningMidnight to 6 am
35%of flight departuresMorning6 am to noon
51%of flight departuresAfternoonNoon to 6 pm
13%of flight departuresEvening6 pm to midnight
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6 AM
Noon
6 PM

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Deals for Illinois to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Cheapflights helps you find that perfect flight to Dulles Intl from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Dulles Intl from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Dulles Intl become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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