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Cheap flights from Oregon to Illinois from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Illinois departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Oregon to Illinois

Cheap round-trip flights

These are some of the best round-trip flight deals from Oregon to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Oregon to Illinois.

Cheap last minute flights

Planning a quick getaway from Oregon to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Oregon to Illinois

Find recent round-trip train or bus tickets from Oregon to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.
12:03 pm - 12:17 amPDX-MDW
10h 14m1 stop
8:44 pm - 8:40 amMDW-PDX
13h 56m1 stop
$110Frontier
Find Deal
Mon, Feb 10 - Sat, Feb 22
9:18 pm - 5:00 amPDX-ORD
29h 42m1 stop
6:50 am - 12:37 amORD-PDX
19h 47m1 stop
$112Frontier
Find Deal
Thu, Feb 27 - Wed, Mar 5
8:28 pm - 6:07 amPDX-ORD
7h 39m1 stop
7:51 pm - 9:21 amORD-PDX
15h 30m1 stop
$152Spirit Airlines
Find Deal
Wed, Feb 12 - Tue, Feb 18
5:30 pm - 5:31 amPDX-ORD
10h 01m1 stop
10:47 pm - 9:21 amORD-PDX
12h 34m1 stop
$166Spirit Airlines
Find Deal
Sat, Jan 25 - Sun, Feb 2
7:00 am - 1:07 pmPDX-ORD
4h 07mnonstop
6:55 pm - 9:41 pmORD-PDX
4h 46mnonstop
$197Alaska Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
10:56 am - 4:57 pmPDX-ORD
4h 01mnonstop
9:11 am - 11:54 amORD-PDX
4h 43mnonstop
$207United Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 18
7:00 am - 1:01 pmPDX-ORD
4h 01mnonstop
8:15 pm - 10:57 pmORD-PDX
4h 42mnonstop
$217United Airlines
Find Deal
Fri, Feb 7 - Mon, Feb 10
1:33 pm - 11:59 pmPDX-STL
8h 26m1 stop
6:44 am - 10:52 amSTL-PDX
6h 08m1 stop
$226Alaska Airlines
Find Deal
Mon, Mar 10 - Wed, Mar 19
11:55 pm - 9:35 amPDX-STL
7h 40m1 stop
5:45 am - 12:32 pmSTL-PDX
8h 47m1 stop
$286American Airlines
Find Deal
Thu, Apr 24 - Sun, Apr 27
11:55 pm - 10:53 amPDX-MLI
8h 58m1 stop
3:24 pm - 9:34 pmMLI-PDX
8h 10m1 stop
$289American Airlines
Find Deal
Fri, Apr 18 - Tue, Apr 22
3:13 pm - 1:03 amPDX-ORD
7h 50m1 stop
$55Frontier
Find Deal
Wed, Apr 2
9:01 am - 8:14 pmPDX-MDW
9h 13m1 stop
$55Frontier
Find Deal
Mon, Apr 7
8:28 pm - 6:07 amPDX-ORD
7h 39m1 stop
$69Spirit Airlines
Find Deal
Wed, Feb 12
8:28 pm - 6:07 amPDX-ORD
7h 39m1 stop
$73Spirit Airlines
Find Deal
Tue, Feb 25
10:56 am - 4:57 pmPDX-ORD
4h 01mnonstop
$99United Airlines
Find Deal
Tue, Feb 11
7:00 am - 1:07 pmPDX-ORD
4h 07mnonstop
$109Alaska Airlines
Find Deal
Sun, Feb 9
1:52 pm - 11:59 pmPDX-STL
8h 07m1 stop
$113Alaska Airlines
Find Deal
Fri, Feb 7
2:02 pm - 8:08 pmPDX-ORD
4h 06mnonstop
$114United Airlines
Find Deal
Tue, Apr 8
11:59 pm - 8:54 amPDX-STL
6h 55m1 stop
$220American Airlines
Find Deal
Sat, Jun 14
3:22 pm - 12:15 amRDM-ORD
6h 53m1 stop
$240American Airlines
Find Deal
Mon, May 5
10:37 am - 11:48 amPDX-MDW
23h 11m1 stop
7:15 am - 11:01 amMDW-PDX
29h 46m1 stop
$348Frontier
Find Deal
Sun, Jan 12 - Thu, Jan 16
12:03 pm - 12:13 amPDX-MDW
10h 10m1 stop
8:15 am - 12:15 amMDW-PDX
18h 00m1 stop
$350Frontier
Find Deal
Sun, Jan 12 - Tue, Jan 14
10:16 am - 9:52 pmPDX-ORD
9h 36m1 stop
5:50 am - 4:35 pmORD-PDX
36h 45m3 stops
$368Spirit Airlines
Find Deal
Fri, Jan 10 - Mon, Jan 13
5:30 pm - 5:31 amPDX-ORD
10h 01m1 stop
10:34 am - 9:21 amORD-PDX
24h 47m2 stops
$412Spirit Airlines
Find Deal
Sat, Jan 11 - Thu, Jan 16
6:50 pm - 4:27 pmBOI-ORD
20h 37m1 stop
7:45 am - 4:19 pmORD-BOI
9h 34m1 stop
$439Alaska Airlines
Find Deal
Sun, Jan 12 - Tue, Jan 14
5:30 am - 12:46 pmBOI-MDW
6h 16m1 stop
6:59 pm - 11:58 pmMDW-BOI
5h 59m1 stop
$439Delta
Find Deal
Fri, Jan 10 - Mon, Jan 13
5:30 am - 12:46 pmBOI-MDW
6h 16m1 stop
1:26 pm - 11:46 pmMDW-BOI
11h 20m2 stops
$444Delta
Find Deal
Fri, Jan 10 - Mon, Jan 13
12:55 pm - 9:41 amPDX-ORD
18h 46m2 stops
12:45 pm - 7:02 pmORD-PDX
8h 17m1 stop
$584United Airlines
Find Deal
Fri, Jan 10 - Sat, Jan 11
7:00 am - 1:07 pmPDX-ORD
4h 07mnonstop
3:35 pm - 6:18 pmORD-PDX
4h 43mnonstop
$627Alaska Airlines
Find Deal
Mon, Jan 13 - Mon, Jan 20
10:56 am - 4:57 pmPDX-ORD
4h 01mnonstop
8:15 pm - 10:57 pmORD-PDX
4h 42mnonstop
$636United Airlines
Find Deal
Sat, Jan 11 - Thu, Jan 16
7:00 am - 1:07 pmPDX-ORD
4h 07mnonstop
6:55 pm - 9:41 pmORD-PDX
4h 46mnonstop
$197Alaska Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
9:00 am - 2:55 pmPDX-MDW
3h 55mnonstop
8:30 am - 10:55 amMDW-PDX
4h 25mnonstop
$197Southwest
Find Deal
Wed, Feb 5 - Wed, Feb 12
10:56 am - 4:57 pmPDX-ORD
4h 01mnonstop
9:11 am - 11:54 amORD-PDX
4h 43mnonstop
$207United Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 18
9:00 am - 2:55 pmPDX-MDW
3h 55mnonstop
8:10 pm - 10:40 pmMDW-PDX
4h 30mnonstop
$207Southwest
Find Deal
Wed, Feb 5 - Mon, Feb 10
7:00 am - 1:01 pmPDX-ORD
4h 01mnonstop
4:00 pm - 6:43 pmORD-PDX
4h 43mnonstop
$217United Airlines
Find Deal
Fri, Feb 7 - Sun, Feb 9
8:00 am - 1:55 pmPDX-MDW
3h 55mnonstop
8:30 am - 10:55 amMDW-PDX
4h 25mnonstop
$217Southwest
Find Deal
Fri, Feb 7 - Sun, Feb 9
7:05 am - 1:05 pmPDX-ORD
4h 00mnonstop
4:15 pm - 6:48 pmORD-PDX
4h 33mnonstop
$227United Airlines
Find Deal
Thu, Feb 27 - Wed, Mar 5
6:35 am - 12:30 pmPDX-MDW
3h 55mnonstop
8:30 am - 10:55 amMDW-PDX
4h 25mnonstop
$227Southwest
Find Deal
Thu, Feb 27 - Wed, Mar 5
3:00 pm - 9:07 pmPDX-ORD
4h 07mnonstop
8:25 pm - 11:01 pmORD-PDX
4h 36mnonstop
$249American Airlines
Find Deal
Fri, Apr 4 - Mon, Apr 7
11:55 pm - 6:00 amPDX-ORD
4h 05mnonstop
10:05 am - 12:32 pmORD-PDX
4h 27mnonstop
$293American Airlines
Find Deal
Fri, Apr 4 - Thu, Apr 10

Alaska Airlines flights from Oregon to Illinois

Our best Alaska Airlines deals on Oregon to Illinois flight tickets
Alaska Airlines
Feb 5
PDX7:00 amPortland
4h 07m
ORD1:07 pmChicago O'Hare Intl
Feb 12
ORD6:55 pmChicago O'Hare Intl
4h 46m
PDX9:41 pmPortland
Alaska Airlines
Mar 10
PDX1:33 pmPortland
8h 26m
1 stop
STL11:59 pmLambert-St Louis
Mar 19
STL6:44 amLambert-St Louis
6h 08m
1 stop
PDX10:52 amPortland
Alaska Airlines
Mar 1
BOI2:46 pmBoise Air Term. Gowen Fld
8h 13m
1 stop
ORD11:59 pmChicago O'Hare Intl
Apr 30
ORD6:00 amChicago O'Hare Intl
8h 47m
1 stop
BOI1:47 pmBoise Air Term. Gowen Fld

Frontier flights from Oregon to Illinois

Our best Frontier deals on Oregon to Illinois flight tickets
Frontier
Feb 10
PDX12:03 pmPortland
10h 14m
1 stop
MDW12:17 amChicago Midway
Feb 22
MDW8:44 pmChicago Midway
13h 56m
1 stop
PDX8:40 amPortland
Frontier
Feb 27
PDX9:18 pmPortland
29h 42m
1 stop
ORD5:00 amChicago O'Hare Intl
Mar 5
ORD6:50 amChicago O'Hare Intl
19h 47m
1 stop
PDX12:37 amPortland
Frontier
Feb 5
PDX7:35 amPortland
28h 27m
1 stop
ORD2:02 pmChicago O'Hare Intl
Feb 12
ORD6:50 amChicago O'Hare Intl
19h 47m
1 stop
PDX12:37 amPortland

See travel insights to Illinois from

How to get the cheapest flight ticket from Oregon to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Oregon is in August. Flight prices, which tend to average around $299, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of August, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $312.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Oregon to Illinois is on a Tuesday when prices can be found for as low as $316. Flights from Oregon to Illinois on a Monday will generally be more expensive and average around $376. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Oregon to Illinois during this time can be as low as $237. Flights in the morning are often more expensive with an average ticket price of $390.

What is the cheapest Oregon to Illinois flight route?

Fly from Portland to Chicago Midway for the best Oregon - Illinois flight prices

How far in advance should I book a flight to Illinois?

The best time to book a flight to Illinois from Oregon is 40 days out, which is when prices tend to be around $361. In the past 72 hours, momondo users found flights from Oregon to Illinois for as low as $196.

What cabin class options are available on Oregon to Illinois flights?

There are 4 cabin classes available to choose from on Oregon to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Oregon to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Illinois

Best Price Found

$55

Fastest flight time

3h 28m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Oregon in the past 72 hours is $55. The best round-trip flight deal from Oregon to Illinois found on momondo in the last 72 hours is $110.
The fastest flight from Oregon to Illinois takes 3h 28m
Direct flights go from Oregon to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

  • When did momondo last update prices for flights from Oregon to Illinois?

    Prices for flights from Oregon to Illinois are updated daily.

  • How many operators does momondo search for flights from Oregon to Illinois?

  • How old do you have to be to fly from Oregon to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oregon to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Oregon to Illinois?


Best airlines flying from Oregon to Illinois

Compare and see reviews for airlines that fly from Oregon to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $82Free CancellationRating
6.3
8,075 reviews
Search Spirit Airlines flights
FrontierPriceFrom $108Free CancellationRating
6.0
3,429 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $178Free CancellationRating
8.0
9,642 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $188Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $207Free CancellationRating
8.0
8,501 reviews
Search Delta flights
United AirlinesPriceFrom $220Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
SouthwestPriceFrom $233Free CancellationRating
8.1
4,650 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Oregon to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from Oregon to Illinois with flexible booking policies on momondo?

Flights from Oregon to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Oregon to Illinois?

Once you have performed a search for Oregon to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Oregon to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Oregon. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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Popular flights according to clicks in the last 7 days on momondo