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 5/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

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Everything you should know

Cheapest round-trip
$202
Overall average: $313
Frontier
Sat 4/18Thu 4/23
STL - PDX • 2 stops
Cheapest non-stop
$207
Typical prices: $506-$647
Southwest
Tue 3/3Fri 3/6
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

Sat, Apr 18 - Thu, Apr 23
Frontier Logo
8:12 pm - 11:57 am
STL
-
PDX
17h 45m
2 stops
Frontier Logo
11:48 am - 7:12 pm
PDX
-
STL
29h 24m
1 stop
$202Frontier
Tue, Mar 3 - Fri, Mar 6
Southwest Logo
3:35 pm - 6:00 pm
MDW
-
PDX
4h 25mnonstop
Southwest Logo
11:55 pm - 5:45 am
PDX
-
MDW
3h 50mnonstop
$207Southwest
Fri, May 8 - Tue, May 19
American Airlines Logo
8:10 pm - 10:47 pm
ORD
-
PDX
4h 37mnonstop
American Airlines Logo
11:47 pm - 5:49 am
PDX
-
ORD
4h 02mnonstop
$207American Airlines
Sat, May 9 - Sat, May 16
Multiple Airlines Logo
9:18 pm - 8:59 am
ORD
-
PDX
13h 41m
1 stop
Multiple Airlines Logo
12:27 pm - 5:31 am
PDX
-
ORD
15h 04m
2 stops
$212Multiple Airlines
Wed, Apr 22 - Sat, Apr 25
Multiple Airlines Logo
9:18 pm - 8:59 am
ORD
-
PDX
13h 41m
1 stop
Multiple Airlines Logo
7:55 am - 2:08 pm
PDX
-
ORD
4h 13mnonstop
$216Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
American Airlines Logo
9:46 pm - 12:17 am
ORD
-
PDX
4h 31mnonstop
American Airlines Logo
11:59 pm - 5:56 am
PDX
-
ORD
3h 57mnonstop
$217American Airlines
Wed, May 13 - Mon, May 18
Alaska Airlines Logo
6:20 pm - 8:37 pm
STL
-
PDX
4h 17mnonstop
Alaska Airlines Logo
11:18 am - 5:06 pm
PDX
-
STL
3h 48mnonstop
$229Alaska Airlines
Sat, Apr 11 - Sat, Apr 18
Delta Logo
2:05 pm - 8:25 pm
MDW
-
PDX
8h 20m
1 stop
Delta Logo
6:00 am - 1:32 pm
PDX
-
MDW
5h 32m
1 stop
$238Delta
Wed, May 13 - Mon, May 18
Alaska Airlines Logo
7:56 pm - 12:11 am
STL
-
PDX
6h 15m
1 stop
Alaska Airlines Logo
11:18 am - 5:06 pm
PDX
-
STL
3h 48mnonstop
$239Alaska Airlines
Thu, Feb 26 - Mon, Mar 2
Delta Logo
3:36 pm - 10:08 pm
BMI
-
PDX
8h 32m
1 stop
Delta Logo
12:09 pm - 10:06 pm
PDX
-
BMI
7h 57m
1 stop
$399Delta
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$66
Best time to beat the crowds with an average 15% 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
Stevenson
Clackamas
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)