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

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.
WAS — ORD
May 13 — May 201

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

Travelers have found it’s best to book a flight 61 days in advance to save up to 108% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. to Illinois 1-2 weeks in advance for as low as $419, or $472 for flights within the next 24 hours.

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

Flights from Washington, D.C. to Illinois lean towards being more expensive in June. Prices are generally better when you fly from Washington, D.C. to Illinois in April, with the cheapest ticket starting at $79.

When is the cheapest time to fly from Washington, D.C. to Illinois (WAS - IL)?

When flying from Washington, D.C. 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.

Cheap Spirit Airlines flights from Washington, D.C. to Illinois

Explore cheap flight options specifically provided by Spirit Airlines for the route between Washington, D.C. and Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
Consider these cheap Spirit Airlines flights we've found departing from Washington, D.C. to Illinois. Deals update often to give you more flight options matching your criteria
Tue 5/2110:12 pmBWI - ORD
1 stop12h 43mSpirit Airlines
Wed 5/229:15 pmORD - BWI
1 stop19h 34mSpirit Airlines
Deal found 5/7$76
Wed 5/2910:12 pmBWI - ORD
1 stop12h 43mSpirit Airlines
Tue 6/46:40 pmORD - BWI
1 stop12h 55mSpirit Airlines
Deal found 5/6$79
Wed 5/2910:12 pmBWI - ORD
1 stop12h 43mSpirit Airlines
Wed 6/58:50 pmORD - BWI
1 stop20h 25mSpirit Airlines
Deal found 5/8$86
Wed 5/2910:12 pmBWI - ORD
1 stop12h 43mSpirit Airlines
Wed 6/55:05 amORD - BWI
1 stop11h 46mSpirit Airlines
Deal found 5/7$88
Mon 5/136:39 pmBWI - ORD
1 stop15h 06mSpirit Airlines
Tue 5/149:15 pmORD - BWI
1 stop9h 48mSpirit Airlines
Deal found 5/6$89
Tue 5/289:36 pmBWI - ORD
1 stop12h 09mSpirit Airlines
Tue 6/46:40 pmORD - BWI
1 stop12h 55mSpirit Airlines
Deal found 5/8$91
Tue 5/149:36 pmBWI - ORD
1 stop12h 09mSpirit Airlines
Wed 5/1511:14 amORD - BWI
2 stops12h 19mSpirit Airlines
Deal found 5/7$92
Sat 5/187:00 amBWI - ORD
1 stop12h 23mSpirit Airlines
Tue 5/219:15 pmORD - BWI
1 stop9h 48mSpirit Airlines
Deal found 5/6$93
Tue 5/216:30 amBWI - ORD
2 stops17h 40mSpirit Airlines
Tue 5/289:15 pmORD - BWI
1 stop9h 48mSpirit Airlines
Deal found 5/7$98

Cheap American Airlines flights from Washington, D.C. to Illinois

Explore cheap flight options specifically provided by American Airlines for the route between Washington, D.C. and Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
Have a look at some of the cheapest available American Airlines flights departing from Washington, D.C. and landing in Illinois. Make sure to examine the flight information before completing your reservation.
Sun 5/266:49 amDCA - ORD
Nonstop2h 11mAmerican Airlines
Wed 5/291:35 pmORD - DCA
Nonstop1h 48mAmerican Airlines
Deal found 5/7$169
Sat 5/188:20 amBWI - ORD
1 stop4h 48mAmerican Airlines
Wed 5/226:48 pmORD - BWI
Nonstop2h 00mAmerican Airlines
Deal found 5/7$266
Sat 5/185:35 pmBWI - MLI
1 stop5h 00mAmerican Airlines
Wed 5/222:56 pmMLI - BWI
1 stop5h 52mAmerican Airlines
Deal found 5/7$268
Wed 5/157:40 amBWI - ORD
Nonstop2h 18mAmerican Airlines
Sat 5/186:48 pmORD - BWI
Nonstop2h 00mAmerican Airlines
Deal found 5/6$269
Wed 5/157:40 amBWI - ORD
Nonstop2h 18mAmerican Airlines
Wed 5/151:40 pmORD - BWI
1 stop7h 10mAmerican Airlines
Deal found 5/7$277

Cheap Washington, D.C. to Illinois flights in May & June 2024

Find cheap flight options from Washington, D.C. to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Prices were last updated on May 8, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to Illinois in 2024. For more flight deals, be sure to check back very soon.
Wed 6/57:09 pmBWI - MDW
Nonstop1h 58mFrontier
Sat 6/83:14 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/7$58
Wed 5/297:16 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 6/83:14 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/8$59
Wed 5/227:16 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 5/293:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/7$65
Wed 5/297:16 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 6/53:29 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/7$66
Wed 5/154:10 pmBWI - MDW
Nonstop2h 03mFrontier
Wed 5/223:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/7$67
Tue 5/149:36 pmBWI - ORD
1 stop12h 09mSpirit Airlines
Tue 5/219:15 pmORD - BWI
1 stop9h 48mSpirit Airlines
Deal found 5/7$69
Sat 6/86:55 pmBWI - MDW
Nonstop1h 58mFrontier
Sat 6/153:14 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/7$70
Wed 5/154:10 pmBWI - MDW
Nonstop2h 03mFrontier
Wed 5/223:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/7$72
Wed 6/127:09 pmBWI - MDW
Nonstop1h 58mFrontier
Sat 8/243:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$73

Washington, D.C. to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Washington, D.C. and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to Illinois in 2024. For more flight deals, be sure to check back very soon.
Wed 7/247:09 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 7/273:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/6$58
Wed 5/297:16 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 6/83:14 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/8$59
Wed 7/247:09 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 7/313:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$60
Sat 8/107:09 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 8/173:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/6$61
Wed 8/147:09 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 8/173:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$62
Sat 7/137:09 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 7/173:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$63
Sat 7/67:09 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 7/103:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$64
Wed 5/227:16 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 5/293:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/7$65
Wed 5/297:16 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 6/53:29 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/7$66

Non-stop flights to Illinois from Washington, D.C.

Discover non-stop flight options from Washington, D.C. to Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
For a shorter flight, select one of these non-stop flights from Washington, D.C. to Illinois. Search for alternative flights from Washington, D.C. to Illinois by utilizing the search form above.
Wed 7/247:09 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 7/273:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/6$58
Wed 5/297:16 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 6/83:14 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/8$59
Wed 7/247:09 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 7/313:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$60
Sat 8/107:09 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 8/173:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/6$61
Wed 8/147:09 pmBWI - MDW
Nonstop1h 59mFrontier
Sat 8/173:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$62
Sat 7/137:09 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 7/173:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$63
Sat 7/67:09 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 7/103:28 pmMDW - BWI
Nonstop1h 51mFrontier
Deal found 5/7$64
Wed 5/227:16 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 5/293:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/7$65
Wed 5/297:16 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 6/53:29 pmMDW - BWI
Nonstop1h 48mFrontier
Deal found 5/7$66

Washington, D.C. to Illinois flights leaving soon

Find last-minute flight options from Washington, D.C. to Illinois 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 2,752,338 searches. Data last updated May 8, 2024.
Check out these flights departing soon from Washington, D.C. to Illinois. Tip: verify your flight details before completing your reservation.
Wed 5/154:10 pmBWI - MDW
Nonstop2h 03mFrontier
Wed 5/223:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/7$72
Wed 5/154:10 pmBWI - MDW
Nonstop2h 03mFrontier
Wed 5/223:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/8$85
Tue 5/149:36 pmBWI - ORD
1 stop12h 09mSpirit Airlines
Tue 5/216:40 pmORD - BWI
2 stops27h 36mSpirit Airlines
Deal found 5/7$88
Mon 5/136:39 pmBWI - ORD
1 stop15h 06mSpirit Airlines
Tue 5/149:15 pmORD - BWI
1 stop9h 48mSpirit Airlines
Deal found 5/6$89
Tue 5/141:02 pmBWI - ORD
1 stop5h 25mMultiple Airlines
Tue 5/149:15 pmORD - BWI
1 stop9h 48mMultiple Airlines
Deal found 5/6$90
Tue 5/149:36 pmBWI - ORD
1 stop12h 09mSpirit Airlines
Wed 5/1511:14 amORD - BWI
2 stops12h 19mSpirit Airlines
Deal found 5/7$92
Sat 5/187:00 amBWI - ORD
1 stop12h 23mSpirit Airlines
Tue 5/219:15 pmORD - BWI
1 stop9h 48mSpirit Airlines
Deal found 5/6$93
Mon 5/207:16 pmBWI - MDW
Nonstop1h 59mFrontier
Wed 5/293:36 pmMDW - BWI
Nonstop1h 50mFrontier
Deal found 5/7$103
Tue 5/1410:12 pmBWI - ORD
3 stops26h 40mSpirit Airlines
Tue 5/219:15 pmORD - BWI
1 stop9h 48mSpirit Airlines
Deal found 5/7$106

One-way flights to Illinois from Washington, D.C.

Search for one-way flight options from Washington, D.C. to Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
Take a look at some of the best available options we've come across on one-way flights from Washington, D.C. to Illinois. Users needing a return flight from Washington, D.C. to Illinois should utilize the search form above.
Wed 5/297:16 pmBWI - MDW
Nonstop1h 59mFrontier
Deal found 5/6$34
Tue 5/1410:12 pmBWI - ORD
1 stop12h 43mSpirit Airlines
Deal found 5/7$34
Wed 5/156:49 amBWI - ORD
1 stop10h 46mSpirit Airlines
Deal found 5/7$35
Wed 5/227:16 pmBWI - MDW
Nonstop1h 59mFrontier
Deal found 5/7$36
Tue 6/46:14 amBWI - STL
1 stop8h 23mSpirit Airlines
Deal found 5/7$37
Sat 6/156:55 pmBWI - MDW
Nonstop1h 58mFrontier
Deal found 5/7$37
Fri 5/317:16 pmBWI - MDW
Nonstop1h 59mFrontier
Deal found 5/8$39
Sat 7/67:09 pmBWI - MDW
Nonstop1h 59mFrontier
Deal found 5/7$40
Mon 6/247:09 pmBWI - MDW
Nonstop1h 58mFrontier
Deal found 5/6$41

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

Customize your flight search to find flights from Washington, D.C. to Illinois 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 2,752,338 searches. Data last updated May 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$58 - $169

Route

Depart

Return

Price

Baltimore/WashingtonChicago Midway

BWI - MDW

BWIMDW

Baltimore/Washington

Wed 7/24

Nonstop1h 59m

Chicago Midway

Sat 7/27

Nonstop1h 51m

$58

Baltimore/WashingtonChicago Midway

BWI - MDW

BWIMDW

Baltimore/Washington

Wed 5/29

Nonstop1h 59m

Chicago Midway

Sat 6/8

Nonstop1h 48m

$59

Baltimore/WashingtonChicago Midway

BWI - MDW

BWIMDW

Baltimore/Washington

Wed 7/24

Nonstop1h 59m

Chicago Midway

Wed 7/31

Nonstop1h 51m

$60

Baltimore/WashingtonChicago Midway

BWI - MDW

BWIMDW

Baltimore/Washington

Sat 8/10

Nonstop1h 59m

Chicago Midway

Sat 8/17

Nonstop1h 51m

$61

Baltimore/WashingtonChicago Midway

BWI - MDW

BWIMDW

Baltimore/Washington

Wed 8/14

Nonstop1h 59m

Chicago Midway

Sat 8/17

Nonstop1h 51m

$62

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Tue 5/21

1 stop12h 43m

Chicago O'Hare Intl

Wed 5/22

1 stop19h 34m

$76

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Wed 5/29

1 stop12h 43m

Chicago O'Hare Intl

Tue 6/4

1 stop12h 55m

$79

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Wed 5/29

1 stop12h 43m

Chicago O'Hare Intl

Wed 6/5

1 stop6h 08m

$100

Washington, D.C. Reagan-NationalChicago O'Hare Intl

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Sun 5/26

Nonstop2h 11m

Chicago O'Hare Intl

Wed 5/29

Nonstop1h 48m

$169

Flights are sorted by cheapest first

Deals found on 5/6

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated May 8, 2024.
Peruse reviews from past customers who have flown with Spirit Airlines, American Airlines and Sun Country Air from Washington, D.C. to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,075 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Crew

8.7

Food

7.3

Boarding

8.3

Reviews

1 / 10

The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.

Southwest
8.2
Very good
6,075 reviews
Southwest
8.2
Very good
6,075 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Crew

8.7

Food

7.3

Boarding

8.3

Reviews

1 / 10

The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.

8.1
Very good
9,141 reviews
Southwest
8.2
Very good
6,075 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Crew

8.7

Food

7.3

Boarding

8.3

Reviews

1 / 10

The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.

8.1
Very good
10,789 reviews
Southwest
8.2
Very good
6,075 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Crew

8.7

Food

7.3

Boarding

8.3

Reviews

1 / 10

The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.

7.6
Good
4,525 reviews
Southwest
8.2
Very good
6,075 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Crew

8.7

Food

7.3

Boarding

8.3

Reviews

1 / 10

The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.

7.4
Good
423 reviews
Southwest
8.2
Very good
6,075 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Crew

8.7

Food

7.3

Boarding

8.3

Reviews

1 / 10

The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Illinois. 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 Washington, D.C. to Illinois for under $100 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. to Illinois for under $100. The cheapest flight booked recently is on Frontier for just $58, but on average you can expect to pay $67.

  • Are there nonstop flights from Washington, D.C. to Illinois for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from Washington, D.C. to Illinois under $100. A good price for a nonstop flight from Washington, D.C. to Illinois is less than $67.

  • Are there last-minute flights available from Washington, D.C. to Illinois for under $100?

    There are currently 20+ open flights from Washington, D.C. to Illinois within the next 7 days for less than $100.

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

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

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

    The top 3 most reliable airlines when flying from Washington, D.C. to Illinois are Ethiopian Air (98%), Egypt Air (96%) and Scandinavian Airlines (95%).

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

    On average you can expect to pay $1,284 for a flight from Washington, D.C. to Illinois. The cheapest flight overall is $104 while the most popular route, (Washington, D.C. Reagan-National - Chicago O'Hare Intl) is currently priced at $154.

  • What does IAD to ORD mean?

    Great question - IAD to ORD just means Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport. Now you’ll know what these unique codes when you look for flights! Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI) are some additional IATA codes for airports related to your trip.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. 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.

  • Can I find deals for flights from Washington, D.C. to Illinois that allow pets onboard?

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

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

    The Washington, D.C. to Illinois flight deals you see on this page were last updated on 5/8.

See more FAQs

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Alternative routes for Washington, D.C. to Illinois
See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Washington, D.C. to Illinois

Discover the top 5 airlines that operate flights from Washington, D.C. to Illinois. 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 2,752,338 searches. Data last updated May 8, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$137FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$68Average$130FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$124Average$424FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$156Average$444FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$175Average$424FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from Washington, D.C. to Illinois by cabin class

Find flights from Washington, D.C. to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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

Find hourly flight availability from Washington, D.C. 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 May 8, 2024.
14%of flight departuresEarly morningMidnight to 6 am
33%of flight departuresMorning6 am to noon
39%of flight departuresAfternoonNoon to 6 pm
14%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to Illinois?

Cheapflights makes it easy to find Washington, D.C. to Illinois flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Illinois?

Cheapflights helps you find that perfect flight to Illinois from Washington, D.C. 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 Washington, D.C. to Illinois with no change fees?

Certainly. Search results for flights to Illinois from Washington, D.C. shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Illinois become cheaper?

Of course! You can now track prices for flights from Washington, D.C. to Illinois and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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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.