PDX

$68 Find Cheap Flights from Illinois to Portland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Portland departing on 1/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$209
Typical prices: $232-$382
Delta
Mon 1/12Wed 1/21
STL - PDX • 1 stop
Cheapest non-stop
$223
Alaska Airlines
Wed 5/13Mon 5/18
STL - PDX • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Portland!
Flight Deals
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Flight Deals

Cheap Flights from Illinois to Portland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Portland

Mon, Jan 12 - Wed, Jan 21
Delta Logo
5:00 pm - 10:54 pmSTL-PDX
7h 54m1 stop
Delta Logo
6:00 am - 4:45 pmPDX-STL
8h 45m1 stop
$209Delta
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Sun, Jan 18 - Tue, Jan 20
Delta Logo
6:10 am - 12:46 pmSTL-PDX
8h 36m1 stop
Delta Logo
6:15 am - 2:38 pmPDX-STL
6h 23m1 stop
$223Delta
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Thu, Jan 8 - Wed, Jan 14
American Airlines Logo
5:49 pm - 8:22 pmORD-PDX
4h 33mnonstop
American Airlines Logo
6:00 am - 12:15 pmPDX-ORD
4h 15mnonstop
$228American Airlines
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Thu, Dec 11 - Mon, Dec 15
Multiple Airlines Logo
11:44 am - 11:56 amORD-PDX
26h 12m2 stops
Multiple Airlines Logo
5:32 pm - 6:05 amPDX-ORD
10h 33m1 stop
$229Multiple Airlines
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Sat, Dec 6 - Tue, Dec 9
Alaska Airlines Logo
2:05 pm - 4:48 pmORD-PDX
4h 43mnonstop
Alaska Airlines Logo
7:04 am - 1:09 pmPDX-ORD
4h 05mnonstop
$231Alaska Airlines
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Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
12:53 pm - 6:10 pmORD-PDX
7h 17m1 stop
United Airlines Logo
1:24 pm - 9:15 pmPDX-ORD
5h 51m1 stop
$232United Airlines
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Wed, May 13 - Mon, May 18
Alaska Airlines Logo
6:20 pm - 8:30 pmSTL-PDX
4h 10mnonstop
Alaska Airlines Logo
9:30 am - 5:22 pmPDX-STL
5h 52m1 stop
$233Alaska Airlines
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Thu, Dec 4 - Wed, Dec 10
Multiple Airlines Logo
7:00 am - 11:56 amORD-PDX
6h 56m1 stop
Multiple Airlines Logo
7:04 am - 1:09 pmPDX-ORD
4h 05mnonstop
$233Multiple Airlines
Find Deal
Sun, Feb 15 - Sat, Feb 21
American Airlines Logo
6:00 am - 10:50 amSTL-PDX
6h 50m1 stop
American Airlines Logo
5:44 am - 5:05 pmPDX-STL
9h 21m1 stop
$237American Airlines
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Tue, Jan 20 - Wed, Jan 21
United Airlines Logo
4:35 pm - 10:53 pmSTL-PDX
8h 18m1 stop
United Airlines Logo
7:00 am - 5:43 pmPDX-STL
8h 43m1 stop
$243United Airlines
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Useful Info

Good to know

Low seasonJanuary
Cheapest flight$68
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 1% 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
Lake Oswego
Clackamas
Stevenson
Government Camp
Carson
Kelso
Gleneden Beach
Gladstone
Oceanside
Dundee
Durham

Everything you need to know for your flight to Portland

Information on the airport you'll fly into in Portland

Portland (PDX)