Find cheap flights from Illinois to Washington

Find cheap flights from Illinois to Washington

Round-trip
Economy
Boston (BOS)
Washington All airports
Fri 7/10
Fri 7/17
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Washington

Good to know

Low season

October Best time to beat the crowds with an average 4% drop in price.

High season

October Most popular time to fly with an average 4% increase in price.

Average price of a round-trip

$336 (avg. price over the last 2 weeks)

Good deal for a round-trip

$167 or less

FAQs for booking Illinois to Washington flights

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Top airlines flying from Illinois to Washington

Scores according to KAYAK customer reviews

8.2
JetBlue
Overall score based on 19,180 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 Illinois to Washington (round-trip)

Airports
Origin
Chicago
$48
only
$48
$146
only
$146
Destination
Baltimore
$48
only
$48
Washington
$150
only
$150
Tue, Jul 21
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Tue, Jul 28
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 8 days
Based on null reviews
Tue, Jul 21
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
2h 09m
Tue, Jul 28
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 8 days
Based on null reviews
Sat, Jul 25
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Sat, Aug 1
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 8 days
Based on null reviews
Mon, Jul 6
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Thu, Jul 9
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 4 days
Based on null reviews
Sat, Jul 18
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Sat, Jul 25
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 8 days
Based on null reviews
Thu, Jul 9
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
2h 09m
Mon, Jul 13
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 5 days
Based on null reviews
Sat, Jul 11
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Tue, Jul 21
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 11 days
Based on null reviews
Sat, Jul 11
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Sun, Jul 12
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 18m
Trip: 2 days
Based on null reviews
Fri, Sep 18
MDW
Chicago Midway Airport
BWI
Baltimore/Washington Airport
4h 15m
Mon, Sep 21
BWI
Baltimore/Washington Airport
MDW
Chicago Midway Airport
4h 50m
Trip: 4 days
Based on null reviews
Wed, Jul 15
ORD
Chicago O'Hare Airport
DCA
Reagan Washington National Airport
6h 33m
Mon, Jul 20
DCA
Reagan Washington National Airport
ORD
Chicago O'Hare Airport
5h 54m
Trip: 6 days
Based on null reviews
Wed, Aug 5
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 57m
Sat, Aug 8
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 19m
Trip: 4 days
Based on null reviews
Sat, Jul 18
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Fri, Jul 24
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 21m
Trip: 7 days
Based on null reviews
Thu, Jun 25
MDW
Chicago Midway Airport
BWI
Baltimore/Washington Airport
22h 53m
Sun, Jun 28
BWI
Baltimore/Washington Airport
MDW
Chicago Midway Airport
4h 29m
Trip: 4 days
Based on null reviews
Wed, Jul 8
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
2h 09m
Sat, Jul 11
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 4 days
Based on null reviews
Sat, Jul 11
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Mon, Jul 13
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 3 days
Based on null reviews
Thu, Jul 16
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
2h 13m
Mon, Jul 20
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 5 days
Based on null reviews
Tue, Jul 21
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
4h 35m
Tue, Jul 28
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 8 days
Based on null reviews
Wed, Jul 8
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
2h 13m
Wed, Jul 15
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 11m
Trip: 8 days
Based on null reviews
Sat, Jul 11
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Mon, Jul 13
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
5h 42m
Trip: 3 days
Based on null reviews
Wed, Jul 1
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Thu, Jul 9
BWI
Baltimore/Washington Airport
ORD
Chicago O'Hare Airport
2h 21m
Trip: 9 days
Based on null reviews

Book cheap flights from Illinois to Washington (one-way)

Airports
Origin
Chicago
$23
only
$23
$70
only
$70
Destination
Baltimore
$23
only
$23
Washington
$135
only
$135
$75
only
$75
Thu, Jul 16
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Tue, Jul 28
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Mon, Jul 20
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Tue, Jul 14
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Thu, Aug 13
MDW
Chicago Midway Airport
BWI
Baltimore/Washington Airport
19h 52m
Based on null reviews
Sat, Aug 1
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
5h 00m
Based on null reviews
Fri, Aug 14
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
5h 48m
Based on null reviews
Thu, Aug 27
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
16h 44m
Based on null reviews
Thu, Jul 23
ORD
Chicago O'Hare Airport
DCA
Reagan Washington National Airport
6h 33m
Based on null reviews
Tue, Jul 28
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
10h 34m
Based on null reviews
Tue, Jul 21
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Sun, Jul 5
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Wed, Jul 1
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Fri, Jul 3
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Tue, Jun 23
ORD
Chicago O'Hare Airport
IAD
Washington Dulles Airport
1h 55m
Based on null reviews
Sun, Jul 19
MDW
Chicago Midway Airport
BWI
Baltimore/Washington Airport
6h 36m
Based on null reviews
Fri, Sep 4
MDW
Chicago Midway Airport
BWI
Baltimore/Washington Airport
5h 49m
Based on null reviews
Thu, Jul 2
ORD
Chicago O'Hare Airport
BWI
Baltimore/Washington Airport
1h 54m
Based on null reviews
Sat, Aug 1
ORD
Chicago O'Hare Airport
DCA
Reagan Washington National Airport
1h 50m
Based on null reviews
Sun, Jul 12
MDW
Chicago Midway Airport
BWI
Baltimore/Washington Airport
6h 36m
Based on null reviews
*
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:

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

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
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