Find cheap flights from Washington to Illinois

Find cheap flights from Washington to Illinois

Round-trip
Economy
Washington (WAS)
Illinois
Tue 8/11
Tue 8/18
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Illinois

Good to know

Low season

February Best time to beat the crowds with an average 3% drop in price.

High season

August Most popular time to fly with an average 12% increase in price.

Average price of a round-trip

$359 (avg. price over the last 2 weeks)

Good deal for a round-trip

$119 or less

FAQs for booking Washington to Illinois flights

Which airlines have a flexible cancellation policy for flights from Washington to Illinois due to COVID-19?

Which airlines apply social distancing measures on flights from Washington to Illinois due to COVID-19?

How does KAYAK find such low prices on flights from Washington to Illinois?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Illinois?

What is the Hacker Fare option on flights from Washington to Illinois?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Illinois?

Top airlines flying from Washington to Illinois

Scores according to KAYAK customer reviews

8.2
JetBlue
Overall score based on 19,208 reviews
8.3
Boarding
8.3
Comfort
8.6
Crew
7.9
Entertainment
7.8
Food
Airline reviews
Read more about JetBlue

Book cheap flights from Washington to Illinois

Recent round-trip flight deals

7/27
Mon
nonstop
Spirit Airlines
2h 11m
BWI - ORD
8/1
Sat
nonstop
Spirit Airlines
1h 54m
ORD - BWI
7/27
Mon
nonstop
Spirit Airlines
2h 11m
BWI - ORD
7/31
Fri
nonstop
Spirit Airlines
1h 54m
ORD - BWI
7/25
Sat
nonstop
Spirit Airlines
2h 11m
BWI - ORD
7/28
Tue
nonstop
Spirit Airlines
1h 54m
ORD - BWI
7/23
Thu
1 stop
Spirit Airlines
6h 47m
BWI - ORD
7/28
Tue
nonstop
Spirit Airlines
1h 54m
ORD - BWI
7/24
Fri
1 stop
Spirit Airlines
6h 47m
BWI - ORD
7/27
Mon
nonstop
Spirit Airlines
1h 54m
ORD - BWI
7/31
Fri
nonstop
Spirit Airlines
2h 11m
BWI - ORD
8/1
Sat
nonstop
Spirit Airlines
1h 54m
ORD - BWI
7/27
Mon
1 stop
Spirit Airlines
8h 34m
BWI - ORD
7/31
Fri
nonstop
Spirit Airlines
1h 54m
ORD - BWI
9/25
Fri
1 stop
Delta
3h 37m
BWI - MDW
9/28
Mon
1 stop
Delta
6h 04m
MDW - BWI
7/31
Fri
nonstop
Allegiant Air
2h 15m
IAD - ORD
8/3
Mon
nonstop
Allegiant Air
1h 45m
ORD - IAD
9/23
Wed
nonstop
Cape Air
2h 02m
IAD - ORD
9/27
Sun
1 stop
Cape Air
8h 29m
ORD - IAD
7/31
Fri
nonstop
Sun Country Air
2h 15m
IAD - ORD
8/7
Fri
nonstop
Sun Country Air
1h 55m
ORD - IAD
7/30
Thu
nonstop
Spirit Airlines
2h 11m
BWI - ORD
8/4
Tue
1 stop
Spirit Airlines
4h 35m
ORD - BWI
Show more results

Recent one-way flight deals

7/27
Mon
nonstop
Spirit Airlines
2h 11m
BWI - ORD
7/30
Thu
nonstop
Major Airline
2h 21m
BWI - ORD
7/26
Sun
nonstop
Spirit Airlines
2h 11m
BWI - ORD
7/28
Tue
nonstop
Spirit Airlines
2h 11m
BWI - ORD
7/23
Thu
1 stop
Multiple Airlines
11h 02m
BWI - ORD
7/26
Sun
1 stop
Spirit Airlines
6h 47m
BWI - ORD
8/2
Sun
1 stop
Spirit Airlines
6h 47m
BWI - ORD
9/3
Thu
1 stop
Sun Country Air
5h 17m
BWI - ORD
9/3
Thu
1 stop
Allegiant Air
23h 38m
BWI - MDW
7/31
Fri
1 stop
Spirit Airlines
8h 34m
BWI - ORD
9/9
Wed
1 stop
Delta
3h 37m
BWI - MDW
9/3
Thu
1 stop
Multiple Airlines
16h 04m
BWI - ORD
7/23
Thu
nonstop
Spirit Airlines
2h 11m
BWI - ORD
9/4
Fri
nonstop
Cape Air
2h 19m
DCA - ORD
8/3
Mon
1 stop
Multiple Airlines
10h 59m
BWI - ORD
7/25
Sat
1 stop
Multiple Airlines
113h 09m
BWI - ORD
7/25
Sat
1 stop
Spirit Airlines
6h 47m
BWI - ORD
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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