HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$34+ Cheap flights from Illinois to Washington, D.C. (WAS)

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — WAS
Nov 10 — Nov 171
Sun 11/10
Sun 11/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Washington, D.C. with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Illinois to Washington, D.C.

Cheapest flights from Illinois to Washington, D.C.
Explore the most affordable flight options available from Illinois to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This Booking.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/45:02 pmSTL - BWI
1 stop24h 05mFrontier
Wed 12/1110:10 amBWI - STL
1 stop14h 14mFrontier
Deal found 11/4$118
This Frontier deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1911:33 amMDW - BWI
1 stop11h 25mFrontier
Sat 11/234:00 pmBWI - MDW
Nonstop2h 01mFrontier
Deal found 11/4$119
This Mytrip deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/94:24 pmORD - BWI
1 stop7h 20mFrontier
Tue 11/196:40 amBWI - ORD
1 stop11h 16mFrontier
Deal found 11/4$123
This Frontier deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:25 amORD - DCA
1 stop8h 34mFrontier
Thu 12/127:00 amDCA - ORD
1 stop8h 00mFrontier
Deal found 11/4$128
This Frontier deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:15 amMDW - DCA
1 stop8h 44mFrontier
Tue 12/101:01 pmDCA - MDW
1 stop12h 12mFrontier
Deal found 11/5$128
This CheapOair deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/137:00 amMDW - IAD
1 stop10h 19mFrontier
Mon 12/165:57 pmIAD - MDW
1 stop24h 57mFrontier
Deal found 11/3$128
This Frontier deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/169:45 amORD - IAD
1 stop9h 44mFrontier
Tue 11/198:47 amIAD - ORD
1 stop9h 09mFrontier
Deal found 11/3$128
This FlightHub deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/184:38 pmORD - BWI
1 stop5h 55mSpirit Airlines
Tue 11/195:28 amBWI - ORD
1 stop5h 22mSpirit Airlines
Deal found 11/4$129
This Southwest deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/410:05 amMDW - BWI
Nonstop1h 50mSouthwest
Wed 12/118:10 pmBWI - MDW
Nonstop2h 05mSouthwest
Deal found 11/4$138
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:05 pmORD - BWI
Nonstop2h 02mUnited Airlines
Sun 12/85:25 pmBWI - ORD
Nonstop2h 13mUnited Airlines
Deal found 11/4$157
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/38:27 pmORD - BWI
1 stop12h 10mMultiple Airlines
Mon 12/237:13 pmBWI - ORD
1 stop25h 01mMultiple Airlines
Deal found 11/5$162
This FlightHub deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/145:29 pmSTL - BWI
1 stop5h 42mMultiple Airlines
Sun 11/178:20 amBWI - STL
1 stop28h 20mMultiple Airlines
Deal found 11/3$168

Find flights from Illinois to Washington, D.C. within your budget

Customize your flight search to find flights from Illinois to Washington, D.C. 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 2,554,862 searches. Data last updated November 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Mon 12/9

11:31 am-6:24 pm

1 stop5h 53m

$53

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 5/3

6:15 am-2:09 pm

1 stop6h 54m

$66

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Sat 12/7

5:55 pm-8:45 pm

Nonstop1h 50m

$69

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 12/4

10:46 am-1:43 pm

Nonstop1h 57m

$69

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 12/17

8:51 am-3:13 pm

1 stop5h 22m

$91

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Tue 12/3

5:42 pm-11:31 pm

1 stop4h 49m

$98

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 12/3

8:30 pm-11:33 pm

Nonstop2h 03m

$105

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Wed 11/20

8:04 pm-8:35 pm

2 stops23h 31m

$116

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 1/16

7:25 am-9:59 am

1 stop25h 34m

$62

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 2/7

10:59 am-6:17 pm

1 stop6h 18m

$62

Flights are sorted by cheapest first

Deals found on 11/5

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Illinois to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Illinois 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.

Travel insights for flights from Illinois to Washington, D.C.

Get recent, data-driven insights about flights from Illinois to Washington, D.C. including ideal travel times, pricing trends, and more.

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

Currently, December is the cheapest month in which you can book a flight from Illinois to Washington, D.C. (average of $298). Flying from Illinois to Washington, D.C. in June is currently the most expensive (average of $377). 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 IL to WAS?

Find hourly flight availability from Illinois to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2024.

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. as you normally would.

Weekly flight availability from Illinois to Washington, D.C.

Explore weekly flight availability from Illinois to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 5, 2024.

The most flights from USIL to WAS are scheduled on a Tuesday (71 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated November 5, 2024.
See what other customers who have flown with Frontier, United Airlines and WestJet from Illinois to Washington, D.C. have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.3

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,082 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.3

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,830 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.3

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Porter Airlines
7.8
Good
292 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.3

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Air Transat
7.8
Good
387 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.3

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,486 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.3

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois to Washington, D.C.. 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. for under $200 on Cheapflights?

    Yes, there are multiple flights from Illinois to Washington, D.C. for under $200. The cheapest flight booked recently is on Frontier for just $108, but on average you can expect to pay $152.

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

    Cheapflights has at least 13 direct flights from Illinois to Washington, D.C. under $200. A good price for a nonstop flight from Illinois to Washington, D.C. is less than $206.

  • Are there last-minute flights available from Illinois to Washington, D.C. for under $200?

    There are currently 20+ open flights from Illinois to Washington, D.C. within the next 7 days for less than $200.

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

    Nonstop flights are available for this route on the following days: Sunday, Tuesday, Wednesday, Thursday, Friday, Saturday.

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

    On average, you can expect to see 8 flights from Illinois to Washington, D.C. a day.
    Afternoon (Noon - 6pm) - 63% of flight departures
    Evening (6pm - Midnight) - 38% of flight departures

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

    Airlines like Frontier, Spirit Airlines, and Southwest fly from Illinois to Washington, D.C. in about 1h 50m. The time it takes to get you to your destination can typically vary by up to 21h 53m. The distance between Illinois and Washington, D.C. is about 590 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $34. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Illinois to Washington, D.C. for a low price.

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

    Most travelers choose Chicago O'Hare Intl - Washington, D.C. Reagan-National, Chicago O'Hare Intl - Washington, D.C. Dulles Intl or Chicago O'Hare Intl - Baltimore/Washington when deciding on the best route from Illinois to Washington, D.C..

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

    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 Illinois to Washington, D.C. on time: Avianca (100%), Emirates (100%), Air China (100%).

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

    On average you can expect to pay $1,042 for a flight from Illinois to Washington, D.C.. The cheapest flight overall is $123 while the most popular route, (Chicago O'Hare Intl - Washington, D.C. Reagan-National) is currently priced at $168.

  • What does ORD to IAD mean?

    ORD stands for Chicago O'Hare Intl Airport, while IAD stands for Washington, D.C. Dulles Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Ready for more IATA code knowledge? These are related airports for your current travel destination: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from Illinois to Washington, D.C. that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Washington, D.C. 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 Washington, D.C. with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Washington, D.C. 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 Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Illinois to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Washington, D.C.?

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

  • Can I find deals for business class flights from Illinois to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Illinois to Washington, D.C. 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 Washington, D.C. that allow pets onboard?

    Many airlines flying from Illinois to Washington, D.C. 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 Washington, D.C.?

    Yes, you can often find last-minute deals on Illinois to Washington, D.C. 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. flight deals updated?

    The Illinois to Washington, D.C. flight deals you see on this page were last updated on 11/5.

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

    Currently, December is the cheapest month in which you can book a flight from Illinois to Washington, D.C. (average of $298). Flying from Illinois to Washington, D.C. in June is currently the most expensive (average of $377). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Boston to Reagan-National flights
Seattle to Dulles Intl flights
San Francisco to Dulles Intl flights
San Francisco to Reagan-National flights
Atlanta to Dulles Intl flights
Atlanta to Reagan-National flights
Boston to Dulles Intl flights
Seattle to Reagan-National flights
O'Hare Intl to Reagan-National flights
Dallas/Fort Worth to Reagan-National flights
O'Hare Intl to Dulles Intl flights
Orlando to Reagan-National flights
Hobby to Reagan-National flights
Hobby to Dulles Intl flights
Denver to Dulles Intl flights
Tampa to Dulles Intl flights
Denver to Reagan-National flights
George Bush Intcntl to Dulles Intl flights
Minneapolis to Reagan-National flights
Orlando to Dulles Intl flights
Miami to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
LaGuardia to Reagan-National flights
LaGuardia to Dulles Intl flights
Newark to Dulles Intl flights
Austin to Dulles Intl flights
Fort Lauderdale to Dulles Intl flights
Tampa to Reagan-National flights
Detroit to Reagan-National flights
Miami to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Hartford to Dulles Intl flights
Minneapolis to Dulles Intl flights
Charlotte to Dulles Intl flights
John F Kennedy Intl to Dulles Intl flights
Newark to Reagan-National flights
San Diego to Dulles Intl flights
Ontario to Reagan-National flights
Sky Harbor Intl to Dulles Intl flights
Portland to Dulles Intl flights
Raleigh to Dulles Intl flights
Cincinnati to Dulles Intl flights
Detroit to Dulles Intl flights
Ontario to Dulles Intl flights
Sacramento to Dulles Intl flights
Fort Lauderdale to Reagan-National flights
Austin to Reagan-National flights

Top 7 airlines flying from Illinois to Washington, D.C.

Discover the top 7 airlines that operate flights from Illinois to Washington, D.C.. 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 2,554,862 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$51Average$167FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$93Average$174FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$121Average$365FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$138Average$292FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$158Average$336FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$160Average$367FlexibilityNo cancel feeOn-time69%
DeltaCheapest$175Average$367FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines