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

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 Illinois to Portland.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Illinois 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 Illinois to Portland?

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 Portland with an airline and back to Illinois with another airline.

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

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 Portland from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$120 CHEAP FLIGHTS from Illinois to Portland

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Cheap Flights from Illinois to Portland

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 Illinois to Portland

Thu, Oct 22 - Sun, Oct 25

5:19 pm - 8:39 pmSTL Lambert-St Louis-PDX Portland

29h 20m1 stop Las Vegas Harry Reid Intl

9:34 pm - 1:17 amPDX Portland-STL Lambert-St Louis

25h 43m1 stop Las Vegas Harry Reid Intl

$240Frontier

Wed, Sep 9 - Sat, Sep 12

12:17 pm - 11:36 amSTL Lambert-St Louis-PDX Portland

25h 19m1 stop Las Vegas Harry Reid Intl

12:24 pm - 11:17 amPDX Portland-STL Lambert-St Louis

20h 53m1 stop Las Vegas Harry Reid Intl

$240Frontier

Sat, Sep 12 - Sat, Sep 19

6:00 am - 10:55 amMLI Moline Quad-City-PDX Portland

6h 55m1 stop Chicago O'Hare Intl

7:00 am - 4:03 pmPDX Portland-MLI Moline Quad-City

7h 03m1 stop Dallas/Fort Worth

$301American Airlines

Sat, Sep 12 - Sat, Sep 19

6:00 am - 10:55 amMLI Moline Quad-City-PDX Portland

6h 55m1 stop Chicago O'Hare Intl

6:01 am - 4:27 pmPDX Portland-MLI Moline Quad-City

8h 26m1 stop Chicago O'Hare Intl

$301American Airlines

Tue, Nov 3 - Wed, Nov 11

6:00 am - 4:10 pmMLI Moline Quad-City-PDX Portland

12h 10m2 stops Atlanta Hartsfield-Jackson Salt Lake City

11:10 pm - 10:20 amPDX Portland-MLI Moline Quad-City

9h 10m1 stop Atlanta Hartsfield-Jackson

$306Delta

Tue, Nov 3 - Tue, Nov 10

6:00 am - 4:10 pmMLI Moline Quad-City-PDX Portland

12h 10m2 stops Atlanta Hartsfield-Jackson Salt Lake City

11:10 pm - 10:20 amPDX Portland-MLI Moline Quad-City

9h 10m1 stop Atlanta Hartsfield-Jackson

$306Delta

Sat, Oct 24 - Tue, Oct 27

11:06 am - 4:35 pmORD Chicago O'Hare Intl-PDX Portland

7h 29m1 stop Denver Intl

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

4h 18mnonstop

$314Multiple Airlines

Fri, Sep 11 - Sat, Sep 12

2:18 pm - 10:45 pmORD Chicago O'Hare Intl-PDX Portland

10h 27m1 stop San Diego

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

4h 20mnonstop

$317Alaska Airlines

Fri, Sep 11 - Sat, Sep 12

7:20 am - 1:48 pmORD Chicago O'Hare Intl-PDX Portland

8h 28m1 stop San Diego

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

4h 20mnonstop

$317Alaska Airlines

Fri, Nov 13 - Tue, Nov 17

11:06 am - 4:35 pmORD Chicago O'Hare Intl-PDX Portland

7h 29m1 stop Denver Intl

7:00 am - 1:11 pmPDX Portland-ORD Chicago O'Hare Intl

4h 11mnonstop

$319Multiple Airlines

Recent last minute flight deals from Illinois to Portland

Fri, Aug 14 - Sat, Sep 5

9:13 pm - 11:35 amORD Chicago O'Hare Intl-PDX Portland

16h 22m1 stop Los Angeles Los Angeles

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

23h 16m1 stop Denver Intl

$325Frontier

Thu, Aug 13 - Sat, Sep 5

9:13 pm - 11:35 amORD Chicago O'Hare Intl-PDX Portland

16h 22m1 stop Los Angeles Los Angeles

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

23h 16m1 stop Denver Intl

$326Frontier

Tue, Aug 11 - Sat, Aug 29

7:20 am - 9:45 amORD Chicago O'Hare Intl-PDX Portland

4h 25mnonstop

5:56 pm - 5:59 amPDX Portland-ORD Chicago O'Hare Intl

10h 03m1 stop Los Angeles Los Angeles

$357Multiple Airlines

Tue, Aug 11 - Sat, Aug 29

5:42 pm - 10:25 pmORD Chicago O'Hare Intl-PDX Portland

6h 43m1 stop Seattle/Tacoma Intl

5:56 pm - 5:59 amPDX Portland-ORD Chicago O'Hare Intl

10h 03m1 stop Los Angeles Los Angeles

$367Multiple Airlines

Tue, Aug 11 - Sat, Aug 29

8:12 pm - 10:52 pmORD Chicago O'Hare Intl-PDX Portland

4h 40mnonstop

11:02 pm - 5:03 amPDX Portland-ORD Chicago O'Hare Intl

4h 01mnonstop

$397United Airlines

Wed, Aug 12 - Sun, Sep 6

2:12 pm - 4:47 pmORD Chicago O'Hare Intl-PDX Portland

4h 35mnonstop

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

4h 20mnonstop

$397Alaska Airlines

Tue, Aug 11 - Sun, Sep 6

2:12 pm - 4:47 pmORD Chicago O'Hare Intl-PDX Portland

4h 35mnonstop

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

4h 20mnonstop

$397Alaska Airlines

Tue, Aug 11 - Sat, Aug 29

8:55 pm - 11:10 pmMDW Chicago Midway-PDX Portland

4h 15mnonstop

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

3h 55mnonstop

$397Southwest

Tue, Aug 11 - Sat, Aug 29

8:55 pm - 11:10 pmMDW Chicago Midway-PDX Portland

4h 15mnonstop

10:45 pm - 10:05 amPDX Portland-MDW Chicago Midway

9h 20m1 stop Baltimore/Washington

$407Southwest

Tue, Aug 11 - Mon, Aug 24

3:44 pm - 10:52 pmMLI Moline Quad-City-PDX Portland

9h 08m1 stop Chicago O'Hare Intl

11:02 pm - 9:54 amPDX Portland-MLI Moline Quad-City

8h 52m1 stop Chicago O'Hare Intl

$415United Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$120

Best time to beat the crowds with an average 20% drop in price.

Most popular time to fly with an average 17% increase in price.

Flight from St. Louis to Portland

How does KAYAK find such low prices on flights from Illinois to Portland?
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 Illinois to Portland.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Portland?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Illinois 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 Illinois to Portland?
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 Portland with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Portland?
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 Portland from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Seaside

Vancouver

Salem

The Dalles

Stevenson

Clackamas

Lake Oswego

Carson

Government Camp

Kelso

Gleneden Beach

Gladstone

Oceanside

Dundee

Durham

Everything you need to know for your flight to Portland

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Information on the airport you'll fly into in Portland

Portland (PDX)

PDX

$120 Find Cheap Flights from Illinois to Portland - Compare and Save

Cheap Flights from Illinois to Portland

Recent round-trip flight deals from Illinois to Portland

Recent one-way flight deals from Illinois to Portland

Recent last minute flight deals from Illinois to Portland

Recent direct flight deals from Illinois to Portland

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High season

Cheapest flight

FAQs for booking flights from Illinois to Portland

Traveling to a place near Portland?

Everything you need to know for your flight to Portland

Information on the airport you'll fly into in Portland

Cabin class types available on flights to Illinois

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

Find direct flights for Portland

Flights to other popular destinations

Flights from domestic origins to Portland

Choose which airport to fly into in Portland

Find deals for your return flight