PDX

$66 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 3/7. 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
$177
Typical prices: $248-$377
Delta
Mon 1/26Fri 2/6
STL - PDX • 1 stop
Cheapest non-stop
$220
Typical prices: $530-$647
Southwest
Fri 3/20Wed 3/25
MDW - PDX • Non-stop
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We hope you love your trip to Portland!
Flight Deals
Useful Info
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 26 - Fri, Feb 6
Delta Logo
3:31 pm - 8:32 pm
STL
-
PDX
7h 01m1 stop
Delta Logo
12:40 am - 10:43 am
PDX
-
STL
8h 03m1 stop
$177Delta
Wed, Jan 28 - Wed, Feb 4
Southwest Logo
6:20 am - 10:35 am
STL
-
PDX
6h 15m1 stop
Southwest Logo
6:45 am - 5:30 pm
PDX
-
STL
8h 45m2 stops
$182Southwest
Wed, Jan 28 - Wed, Feb 4
Southwest Logo
9:00 am - 3:40 pm
STL
-
PDX
8h 40m2 stops
Southwest Logo
5:05 am - 4:35 pm
PDX
-
STL
9h 30m2 stops
$188Southwest
Thu, Mar 12 - Sun, Mar 15
Frontier Logo
10:47 pm - 8:58 am
STL
-
PDX
12h 11m1 stop
Frontier Logo
12:04 pm - 9:49 am
PDX
-
STL
19h 45m1 stop
$190Frontier
Thu, Jan 29 - Thu, Feb 5
Frontier Logo
10:01 pm - 9:49 am
STL
-
PDX
13h 48m1 stop
Frontier Logo
11:28 am - 9:06 pm
PDX
-
STL
7h 38m1 stop
$201Frontier
Tue, Mar 10 - Fri, Mar 13
Frontier Logo
4:51 pm - 8:58 am
STL
-
PDX
18h 07m2 stops
Frontier Logo
12:04 pm - 9:49 am
PDX
-
STL
19h 45m1 stop
$202Frontier
Mon, Jan 26 - Fri, Feb 6
Alaska Airlines Logo
2:50 pm - 8:47 pm
STL
-
PDX
7h 57m1 stop
Alaska Airlines Logo
1:38 pm - 10:46 pm
PDX
-
STL
7h 08m1 stop
$209Alaska Airlines
Fri, Jan 30 - Sun, Feb 1
Alaska Airlines Logo
2:06 pm - 4:48 pm
ORD
-
PDX
4h 42mnonstop
Alaska Airlines Logo
1:38 pm - 11:50 pm
PDX
-
ORD
8h 12m1 stop
$218Alaska Airlines
Wed, Mar 25 - Sun, Mar 29
Multiple Airlines Logo
11:25 am - 8:08 am
MDW
-
PDX
22h 43m2 stops
Multiple Airlines Logo
7:56 pm - 11:35 pm
PDX
-
MDW
25h 39m1 stop
$221Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
Hawaiian Airlines Logo
2:07 pm - 4:50 pm
ORD
-
PDX
4h 43mnonstop
Hawaiian Airlines Logo
7:00 am - 1:11 pm
PDX
-
ORD
4h 11mnonstop
$226Hawaiian Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$66
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 5% 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)