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$134 Find Cheap Flights from Illinois to Portland - Compare and Save

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1 adult, Economy, 0 bags

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Cheap Flights from Illinois to Portland

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

Recent round-trip flight deals from Illinois to Portland

Sat, Oct 24 - Tue, Oct 27
Frontier Logo
7:42 pm - 10:54 amSTL  Lambert-St Louis-PDX Portland
17h 12m1 stop Denver Intl
Frontier Logo
12:02 pm - 3:23 pmPDX  Portland-STL Lambert-St Louis
25h 21m1 stop Denver Intl
$235Frontier
Sat, Oct 24 - Tue, Oct 27
Frontier Logo
7:42 pm - 10:54 amSTL  Lambert-St Louis-PDX Portland
17h 12m1 stop Denver Intl
Frontier Logo
12:02 pm - 5:40 pmPDX  Portland-STL Lambert-St Louis
27h 38m2 stops Denver Intl Atlanta Hartsfield-Jackson
$270Frontier
Fri, Oct 16 - Sat, Oct 17
Alaska Airlines Logo
3:49 pm - 11:02 pmORD  Chicago O'Hare Intl-PDX Portland
9h 13m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 1:18 pmPDX  Portland-ORD Chicago O'Hare Intl
4h 18mnonstop
$297Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
American Airlines Logo
5:13 pm - 11:43 pmMLI  Moline Quad-City-PDX Portland
8h 30m1 stop Dallas/Fort Worth
American Airlines Logo
1:22 pm - 12:07 amPDX  Portland-MLI Moline Quad-City
8h 45m1 stop Chicago O'Hare Intl
$301American Airlines
Tue, Oct 20 - Sat, Oct 24
American Airlines Logo
4:38 pm - 11:39 pmMLI  Moline Quad-City-PDX Portland
9h 01m1 stop Dallas/Fort Worth
American Airlines Logo
5:20 am - 4:04 pmPDX  Portland-MLI Moline Quad-City
8h 44m1 stop Dallas/Fort Worth
$301American Airlines
Wed, Nov 11 - Sat, Nov 14
United Airlines Logo
2:31 pm - 10:27 pmMLI  Moline Quad-City-PDX Portland
9h 56m1 stop Chicago O'Hare Intl
United Airlines Logo
10:47 am - 9:22 pmPDX  Portland-MLI Moline Quad-City
8h 35m1 stop Chicago O'Hare Intl
$301United Airlines
Wed, Jan 20 - Sat, Jan 23
United Airlines Logo
8:15 am - 3:30 pmMLI  Moline Quad-City-PDX Portland
9h 15m1 stop Chicago O'Hare Intl
United Airlines Logo
7:01 am - 6:00 pmPDX  Portland-MLI Moline Quad-City
8h 59m1 stop Chicago O'Hare Intl
$301United Airlines
Fri, Nov 13 - Sun, Nov 15
Alaska Airlines Logo
6:35 pm - 8:38 amORD  Chicago O'Hare Intl-PDX Portland
16h 03m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:08 am - 11:59 pmPDX  Portland-ORD Chicago O'Hare Intl
15h 51m1 stop Seattle/Tacoma Intl
$303Alaska Airlines
Wed, Oct 28 - Wed, Nov 4
Delta Logo
12:50 pm - 8:00 pmORD  Chicago O'Hare Intl-PDX Portland
9h 10m1 stop Seattle/Tacoma Intl
Delta Logo
3:31 pm - 11:34 pmPDX  Portland-ORD Chicago O'Hare Intl
6h 03m1 stop Seattle/Tacoma Intl
$303Delta
Wed, Oct 7 - Sun, Oct 11
Delta Logo
5:30 pm - 9:56 pmORD  Chicago O'Hare Intl-PDX Portland
6h 26m1 stop Seattle/Tacoma Intl
Delta Logo
8:44 pm - 1:30 pmPDX  Portland-ORD Chicago O'Hare Intl
14h 46m1 stop Seattle/Tacoma Intl
$303Delta
Useful Info

Good to know

Low season

January

Cheapest flight

$134
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from St. Louis to Portland

FAQs for booking flights from Illinois 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.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Seaside
Vancouver
Salem
The Dalles
Clackamas
Stevenson
Lake Oswego
Carson
Government Camp
Kelso
Gleneden Beach
Gladstone
Oceanside
Dundee
Durham

More options for your flight to Portland