PDX

$106 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 9/1. 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

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Cmt, Eyl 12 - Cmt, Eyl 19
American Airlines Logo
4:57 pm - 12:07 am
MLI
-
PDX
9h 10m
1 stop
American Airlines Logo
2:07 pm - 11:18 pm
PDX
-
MLI
7h 11m
1 stop
$291American Airlines
Cmt, Ağu 29 - Çar, Eyl 2
Southwest Logo
8:30 am - 10:40 am
STL
-
PDX
4h 10mnonstop
Southwest Logo
7:05 am - 6:15 pm
PDX
-
STL
9h 10m
1 stop
$309Southwest
Çar, Tem 22 - Sal, Tem 28
Alaska Airlines Logo
7:20 am - 9:45 am
ORD
-
PDX
4h 25mnonstop
Alaska Airlines Logo
10:59 pm - 5:00 am
PDX
-
ORD
4h 01mnonstop
$309Alaska Airlines
Çar, Tem 1 - Çar, Tem 8
Alaska Airlines Logo
7:20 am - 9:45 am
ORD
-
PDX
4h 25mnonstop
Alaska Airlines Logo
10:59 pm - 5:00 am
PDX
-
ORD
4h 01mnonstop
$310Alaska Airlines
Cmt, Ağu 29 - Çar, Eyl 2
Frontier Logo
8:08 pm - 11:41 am
STL
-
PDX
17h 33m
2 stops
Frontier Logo
5:42 pm - 7:23 pm
PDX
-
STL
23h 41m
1 stop
$313Frontier
Çar, Tem 1 - Çar, Tem 8
Frontier Logo
9:48 pm - 4:57 pm
ORD
-
PDX
21h 09m
1 stop
Frontier Logo
5:21 pm - 8:52 pm
PDX
-
ORD
25h 31m
1 stop
$313Frontier
Cmt, Tem 25 - Sal, Tem 28
Southwest Logo
5:35 pm - 7:40 pm
STL
-
PDX
4h 05mnonstop
Southwest Logo
5:50 am - 5:45 pm
PDX
-
STL
9h 55m
2 stops
$314Southwest
Sal, Tem 21 - Sal, Tem 28
United Airlines Logo
7:23 pm - 12:50 am
STL
-
PDX
7h 27m
1 stop
United Airlines Logo
11:40 pm - 8:49 am
PDX
-
STL
7h 09m
1 stop
$319United Airlines
Sal, Tem 21 - Sal, Tem 28
Multiple Airlines Logo
3:41 pm - 3:07 pm
STL
-
PDX
49h 26m
2 stops
Multiple Airlines Logo
5:16 pm - 7:23 pm
PDX
-
STL
24h 07m
1 stop
$321Multiple Airlines
Cmt, Tem 4 - Cum, Tem 10
United Airlines Logo
1:13 pm - 6:50 pm
PIA
-
PDX
7h 37m
1 stop
United Airlines Logo
11:40 pm - 10:09 am
PDX
-
PIA
8h 29m
1 stop
$345United Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$118
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 2% 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)