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 12/10. 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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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

Wed, Dec 3 - Sun, Dec 7
Frontier Logo
7:43 pm - 11:56 amSTL-PDX
18h 13m1 stop
Frontier Logo
12:51 pm - 10:14 amPDX-STL
19h 23m1 stop
$134Frontier
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Wed, Nov 12 - Tue, Nov 18
Frontier Logo
7:45 pm - 11:56 amSTL-PDX
18h 11m1 stop
Frontier Logo
1:26 pm - 9:07 amPDX-STL
17h 41m1 stop
$138Frontier
Find Deal
Sat, Dec 13 - Wed, Dec 17
Southwest Logo
5:30 am - 9:45 amSTL-PDX
6h 15m1 stop
Southwest Logo
5:30 am - 5:15 pmPDX-STL
9h 45m2 stops
$175Southwest
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Sat, Dec 13 - Sat, Jan 10
Delta Logo
5:00 pm - 10:10 pmSTL-PDX
7h 10m1 stop
Delta Logo
6:00 am - 2:14 pmPDX-STL
6h 14m1 stop
$177Delta
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Wed, Dec 3 - Mon, Dec 15
Delta Logo
6:00 am - 12:54 pmSTL-PDX
8h 54m1 stop
Delta Logo
1:59 pm - 11:29 pmPDX-STL
7h 30m1 stop
$183Delta
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Thu, Nov 20 - Mon, Dec 1
Multiple Airlines Logo
6:45 pm - 1:08 pmORD-PDX
20h 23m1 stop
Multiple Airlines Logo
5:15 pm - 7:43 amPDX-ORD
36h 28m2 stops
$207Multiple Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
Southwest Logo
9:50 pm - 12:20 amMDW-PDX
4h 30mnonstop
Southwest Logo
2:15 pm - 10:55 pmPDX-MDW
6h 40m1 stop
$209Southwest
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Mon, Jan 19 - Wed, Jan 21
American Airlines Logo
3:37 pm - 10:09 pmSTL-PDX
8h 32m1 stop
American Airlines Logo
7:40 am - 4:14 pmPDX-STL
6h 34m1 stop
$209American Airlines
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Thu, Nov 13 - Sun, Nov 16
Multiple Airlines Logo
6:00 am - 11:56 amORD-PDX
7h 56m1 stop
Multiple Airlines Logo
11:00 pm - 5:01 amPDX-ORD
4h 01mnonstop
$209Multiple Airlines
Find Deal
Sun, Jan 11 - Sun, Feb 1
American Airlines Logo
5:58 pm - 8:31 pmORD-PDX
4h 33mnonstop
American Airlines Logo
6:00 am - 12:15 pmPDX-ORD
4h 15mnonstop
$215American Airlines
Find Deal

Everything you should know

Cheapest round-trip
$134
Typical prices: $272-$492
Frontier
Wed 12/3Sun 12/7
STL - PDX • 1 stop
Cheapest non-stop
$208
Typical prices: $292-$471
American Airlines
Thu 2/19Sun 2/22
ORD - 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!
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$66
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 4% 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)

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