How does KAYAK find such low prices on flights from Oregon to Chicago?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to Chicago.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Oregon is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Oregon to Chicago?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Oregon with another airline.

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

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$89 CHEAP FLIGHTS from Oregon to Chicago

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Oregon to Chicago

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Oregon to Chicago

Thu, Nov 5 - Mon, Nov 9

3:52 pm - 5:13 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

12h 21m1 stop Las Vegas Harry Reid Intl

7:00 am - 2:57 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

8h 57m1 stop Las Vegas Harry Reid Intl

$232Frontier

Thu, Sep 10 - Wed, Sep 16

2:50 pm - 5:38 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

13h 48m1 stop Las Vegas Harry Reid Intl

1:21 pm - 1:55 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

25h 34m1 stop Las Vegas Harry Reid Intl

$234Frontier

Tue, Sep 15 - Tue, Sep 22

1:15 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

9h 44m1 stop Seattle/Tacoma Intl

6:00 am - 12:35 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

7h 35m1 stop Seattle/Tacoma Intl

$293Alaska Airlines

Wed, Sep 23 - Tue, Sep 29

4:20 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

6h 39m1 stop Seattle/Tacoma Intl

6:00 am - 12:35 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

7h 35m1 stop Seattle/Tacoma Intl

$293Alaska Airlines

Tue, Sep 29 - Sun, Oct 4

9:13 am - 7:21 pmPDX Portland-ORD Chicago O'Hare Intl

8h 08m1 stop San Diego

6:30 am - 11:43 amORD Chicago O'Hare Intl-PDX Portland

7h 13m1 stop Denver Intl

$312Multiple Airlines

Sat, Nov 14 - Mon, Nov 16

1:27 pm - 6:10 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 43mnonstop

9:45 am - 12:42 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 57mnonstop

$313American Airlines

Thu, Oct 1 - Tue, Oct 6

3:21 pm - 8:16 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 55mnonstop

11:35 am - 2:33 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 58mnonstop

$313American Airlines

Tue, Nov 10 - Mon, Nov 16

12:31 pm - 5:05 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 34mnonstop

8:40 am - 11:31 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 51mnonstop

$313United Airlines

Wed, Sep 16 - Wed, Sep 23

12:28 pm - 5:05 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 37mnonstop

8:40 am - 11:26 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 46mnonstop

$313United Airlines

Thu, Sep 10 - Tue, Sep 15

12:24 pm - 5:38 amPDX Portland-ORD Chicago O'Hare Intl

15h 14m1 stop Las Vegas Harry Reid Intl

2:22 pm - 4:50 pmORD Chicago O'Hare Intl-PDX Portland

4h 28mnonstop

$313Multiple Airlines

Recent last minute flight deals from Oregon to Chicago

Fri, Aug 21 - Tue, Aug 25

12:20 pm - 1:36 pmPDX Portland-ORD Chicago O'Hare Intl

23h 16m1 stop Denver Intl

2:41 pm - 5:11 pmORD Chicago O'Hare Intl-PDX Portland

28h 30m1 stop Denver Intl

$331Frontier

Sun, Aug 23 - Wed, Aug 26

12:20 pm - 1:36 pmPDX Portland-ORD Chicago O'Hare Intl

23h 16m1 stop Denver Intl

2:41 pm - 5:11 pmORD Chicago O'Hare Intl-PDX Portland

28h 30m1 stop Denver Intl

$331Frontier

Sat, Aug 22 - Tue, Sep 22

2:58 pm - 7:49 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 51mnonstop

11:35 am - 2:31 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 56mnonstop

$373American Airlines

Sat, Aug 22 - Tue, Sep 22

4:20 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

6h 39m1 stop Seattle/Tacoma Intl

6:00 am - 12:35 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

7h 35m1 stop Seattle/Tacoma Intl

$373Alaska Airlines

Wed, Aug 26 - Sat, Aug 29

2:17 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

8h 42m1 stop Seattle/Tacoma Intl

6:05 am - 2:02 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

8h 57m1 stop San Diego

$373Alaska Airlines

Sat, Aug 22 - Tue, Sep 22

2:58 pm - 7:49 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 51mnonstop

1:45 pm - 10:03 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

9h 18m1 stop Phoenix Sky Harbor Intl

$383American Airlines

Sat, Aug 22 - Tue, Sep 22

5:30 am - 1:10 pmBOI Boise Air Term. Gowen Fld-MDW Chicago Midway

6h 40m1 stop Minneapolis St Paul

6:05 am - 1:01 pmMDW Chicago Midway-BOI Boise Air Term. Gowen Fld

7h 56m1 stop Atlanta Hartsfield-Jackson

$393Delta

Sat, Aug 22 - Tue, Sep 22

5:30 am - 6:33 pmBOI Boise Air Term. Gowen Fld-MDW Chicago Midway

12h 03m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County

7:13 pm - 11:59 pmMDW Chicago Midway-BOI Boise Air Term. Gowen Fld

5h 46m1 stop Minneapolis St Paul

$398Delta

Sun, Aug 23 - Wed, Aug 26

7:06 am - 1:26 pmPDX Portland-ORD Chicago O'Hare Intl

4h 20mnonstop

2:41 pm - 5:11 pmORD Chicago O'Hare Intl-PDX Portland

28h 30m1 stop Denver Intl

$401Multiple Airlines

Sun, Aug 23 - Tue, Aug 25

12:20 pm - 1:36 pmPDX Portland-ORD Chicago O'Hare Intl

23h 16m1 stop Denver Intl

2:22 pm - 4:50 pmORD Chicago O'Hare Intl-PDX Portland

4h 28mnonstop

$406Multiple Airlines

Recent direct flight deals from Oregon to Chicago

Mon, Sep 28 - Wed, Sep 30

3:21 pm - 8:16 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 55mnonstop

11:35 am - 2:31 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 56mnonstop

$313American Airlines

Mon, Oct 5 - Sat, Oct 10

3:24 pm - 8:11 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 47mnonstop

11:35 am - 2:33 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 58mnonstop

$313American Airlines

Tue, Nov 10 - Mon, Nov 16

12:31 pm - 5:05 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 34mnonstop

8:40 am - 11:31 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 51mnonstop

$313United Airlines

Wed, Sep 16 - Wed, Sep 23

12:28 pm - 5:05 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 37mnonstop

8:40 am - 11:26 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 46mnonstop

$313United Airlines

Sat, Nov 14 - Mon, Nov 16

1:27 pm - 6:10 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 43mnonstop

9:45 am - 12:42 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 57mnonstop

$313American Airlines

Sun, Sep 13 - Sun, Sep 20

2:19 pm - 8:30 pmEUG Eugene-ORD Chicago O'Hare Intl

4h 11mnonstop

10:25 am - 1:10 pmORD Chicago O'Hare Intl-EUG Eugene

4h 45mnonstop

$339United Airlines

Sat, Oct 10 - Tue, Oct 13

7:00 am - 1:18 pmPDX Portland-ORD Chicago O'Hare Intl

4h 18mnonstop

2:14 pm - 4:51 pmORD Chicago O'Hare Intl-PDX Portland

4h 37mnonstop

$345Alaska Airlines

Tue, Dec 8 - Wed, Dec 9

7:02 am - 1:09 pmPDX Portland-ORD Chicago O'Hare Intl

4h 07mnonstop

2:03 pm - 4:37 pmORD Chicago O'Hare Intl-PDX Portland

4h 34mnonstop

$357Alaska Airlines

Sun, Oct 18 - Wed, Oct 21

5:20 am - 11:10 amPDX Portland-MDW Chicago Midway

3h 50mnonstop

8:40 pm - 11:05 pmMDW Chicago Midway-PDX Portland

4h 25mnonstop

$357Southwest

Sun, Sep 13 - Tue, Sep 15

11:30 pm - 5:25 amPDX Portland-MDW Chicago Midway

3h 55mnonstop

8:55 pm - 11:15 pmMDW Chicago Midway-PDX Portland

4h 20mnonstop

$357Southwest

Useful Info

Low season	January
High season	June
Cheapest flight	$89

Best time to beat the crowds but there is an average 5% increase in price.

Most popular time to fly with an average 3% increase in price.

Flight from Boise to Chicago O'Hare Airport

How does KAYAK find such low prices on flights from Oregon to Chicago?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to Chicago.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to Chicago?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Oregon is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Oregon to Chicago?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Oregon with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to Chicago?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Merrillville

Saint Joseph

Hammond

Portage

Lansing

Valparaiso

Chesterton

Munster

Schererville

Porter

Monticello

Saint John

Griffith

Everything you need to know for your flight to Chicago

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Oregon

First Class flights to Chicagofrom $853

Business Class flights to Chicagofrom $1,000

Premium Economy Class flights to Chicagofrom $1,008

Economy Class flights to Chicagofrom $287

$89 Find Cheap Flights from Oregon to Chicago - Compare and Save

Cheap Flights from Oregon to Chicago

Recent round-trip flight deals from Oregon to Chicago

Recent one-way flight deals from Oregon to Chicago

Recent last minute flight deals from Oregon to Chicago

Recent direct flight deals from Oregon to Chicago

Good to know

Low season

High season

Cheapest flight

FAQs for booking flights from Oregon to Chicago

Traveling to a place near Chicago?

Everything you need to know for your flight to Chicago

Cabin class types available on flights to Oregon

Complete your trip to Chicago with a hotel stay or car rental

Find direct flights for Chicago

Flights to other popular destinations

Flights from domestic origins to Chicago

Choose which airport to fly into in Chicago

Find deals for your return flight