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Cheap flights from Portland to Illinois from $53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Illinois departing on 1/6. 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 Portland to Illinois

Cheap round-trip flights

These are some of the best round-trip flight deals from Portland 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 Portland to Illinois.

Cheap last minute flights

Planning a quick getaway from Portland 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 Portland to Illinois

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

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.
7:35 am - 2:00 pmPDX-ORD
28h 25m1 stop
8:25 pm - 12:34 pmORD-PDX
18h 09m1 stop
$112Frontier
Find Deal
Wed, Dec 11 - Mon, Dec 16
12:03 pm - 12:13 amPDX-MDW
10h 10m1 stop
8:15 am - 12:15 amMDW-PDX
18h 00m1 stop
$118Frontier
Find Deal
Mon, Dec 9 - Wed, Dec 11
7:16 pm - 5:30 amPDX-ORD
8h 14m1 stop
7:33 am - 8:28 pmORD-PDX
14h 55m2 stops
$167Spirit Airlines
Find Deal
Tue, Dec 10 - Tue, Dec 17
5:00 am - 2:26 pmPDX-ORD
7h 26m1 stop
7:33 am - 8:28 pmORD-PDX
14h 55m2 stops
$172Spirit Airlines
Find Deal
Fri, Dec 13 - Tue, Dec 17
7:35 am - 4:33 pmPDX-STL
6h 58m1 stop
5:10 am - 1:14 pmSTL-PDX
10h 04m1 stop
$212American Airlines
Find Deal
Tue, Feb 18 - Mon, Feb 24
9:00 am - 6:09 pmPDX-STL
7h 09m1 stop
11:30 am - 9:00 pmSTL-PDX
11h 30m2 stops
$213United Airlines
Find Deal
Wed, Jan 29 - Sat, Feb 1
3:20 pm - 12:57 amPDX-STL
7h 37m2 stops
2:10 pm - 10:03 pmSTL-PDX
9h 53m1 stop
$226Delta
Find Deal
Tue, Dec 10 - Wed, Dec 11
9:00 am - 6:09 pmPDX-STL
7h 09m1 stop
1:45 pm - 9:00 pmSTL-PDX
9h 15m1 stop
$238United Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
2:07 pm - 11:59 pmPDX-ORD
7h 52m1 stop
6:45 pm - 12:28 amORD-PDX
7h 43m1 stop
$242Delta
Find Deal
Tue, Dec 10 - Tue, Dec 17
12:59 am - 10:35 amPDX-ORD
7h 36m1 stop
3:40 pm - 10:44 pmORD-PDX
9h 04m1 stop
$301American Airlines
Find Deal
Mon, Dec 30 - Mon, Jan 6
1:05 pm - 9:09 pmPDX-MDW
6h 04m1 stop
$53Frontier
Find Deal
Mon, Jan 6
10:37 am - 7:31 pmPDX-STL
6h 54m1 stop
$54Frontier
Find Deal
Thu, Jan 23
7:16 pm - 5:30 amPDX-ORD
8h 14m1 stop
$81Spirit Airlines
Find Deal
Tue, Dec 10
7:48 pm - 5:30 amPDX-ORD
7h 42m1 stop
$83Spirit Airlines
Find Deal
Tue, Jan 7
7:00 am - 1:01 pmPDX-ORD
4h 01mnonstop
$99United Airlines
Find Deal
Wed, Jan 22
1:30 pm - 9:33 pmPDX-STL
6h 03m1 stop
$99Delta
Find Deal
Sat, Jan 18
2:00 pm - 9:58 pmPDX-ORD
5h 58m1 stop
$108Delta
Find Deal
Sat, Jan 18
1:42 pm - 7:40 pmPDX-ORD
3h 58mnonstop
$114American Airlines
Find Deal
Sat, May 3
4:00 pm - 12:23 amPDX-ORD
6h 23m1 stop
$118United Airlines
Find Deal
Sat, Mar 8
12:59 am - 10:35 amPDX-ORD
7h 36m1 stop
$134American Airlines
Find Deal
Sat, Jan 4
11:55 am - 2:07 pmPDX-ORD
24h 12m1 stop
12:57 pm - 11:39 pmORD-PDX
12h 42m1 stop
Tue, Nov 26 - Tue, Dec 3
9:19 pm - 11:52 amPDX-ORD
12h 33m1 stop
8:25 pm - 12:34 pmORD-PDX
18h 09m1 stop
Tue, Nov 26 - Mon, Dec 16
9:19 pm - 11:52 amPDX-ORD
12h 33m1 stop
9:10 pm - 6:21 pmORD-PDX
23h 11m1 stop
$280Spirit Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 10
9:19 pm - 11:52 amPDX-ORD
12h 33m1 stop
9:10 pm - 8:28 pmORD-PDX
25h 18m2 stops
$339Spirit Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 3
12:59 am - 10:40 amPDX-STL
7h 41m1 stop
6:35 pm - 11:44 pmSTL-PDX
7h 09m1 stop
$500Delta
Find Deal
Mon, Nov 25 - Mon, Dec 2
2:00 pm - 10:38 pmPDX-STL
6h 38m1 stop
5:57 pm - 11:20 pmSTL-PDX
7h 23m1 stop
$507American Airlines
Find Deal
Tue, Nov 26 - Mon, Dec 2
12:59 am - 8:51 amPDX-ORD
5h 52m1 stop
6:45 pm - 11:29 pmORD-PDX
6h 44m1 stop
$531Delta
Find Deal
Mon, Nov 25 - Mon, Dec 16
7:40 am - 4:37 pmPDX-STL
6h 57m1 stop
7:30 pm - 12:54 amSTL-PDX
7h 24m1 stop
$540American Airlines
Find Deal
Sat, Nov 23 - Sat, Nov 30
1:42 pm - 12:16 amPDX-STL
8h 34m1 stop
1:05 pm - 10:42 pmSTL-PDX
11h 37m2 stops
$557United Airlines
Find Deal
Sun, Nov 24 - Tue, Nov 26
7:50 pm - 5:00 amPDX-ORD
7h 10m1 stop
8:50 am - 9:14 pmORD-PDX
14h 24m2 stops
$583United Airlines
Find Deal
Sat, Nov 23 - Sun, Nov 24
7:00 am - 1:04 pmPDX-ORD
4h 04mnonstop
4:05 pm - 6:44 pmORD-PDX
4h 39mnonstop
$191Alaska Airlines
Find Deal
Tue, Feb 25 - Tue, Feb 25
7:00 am - 1:07 pmPDX-ORD
4h 07mnonstop
6:55 pm - 9:41 pmORD-PDX
4h 46mnonstop
$197Alaska Airlines
Find Deal
Wed, Jan 15 - Wed, Jan 22
7:00 am - 1:07 pmPDX-ORD
4h 07mnonstop
4:05 pm - 6:44 pmORD-PDX
4h 39mnonstop
$217Alaska Airlines
Find Deal
Sun, Feb 9 - Tue, Feb 25
7:00 am - 1:04 pmPDX-ORD
4h 04mnonstop
4:05 pm - 6:44 pmORD-PDX
4h 39mnonstop
$223Alaska Airlines
Find Deal
Fri, Feb 14 - Tue, Feb 25
7:00 am - 1:03 pmPDX-ORD
4h 03mnonstop
3:21 pm - 5:55 pmORD-PDX
4h 34mnonstop
$227Alaska Airlines
Find Deal
Sat, Apr 5 - Sat, Apr 12
9:00 am - 2:55 pmPDX-MDW
3h 55mnonstop
8:30 am - 10:55 amMDW-PDX
4h 25mnonstop
$248Southwest
Find Deal
Tue, Jan 7 - Fri, Jan 10
11:58 pm - 5:55 amPDX-ORD
3h 57mnonstop
7:59 pm - 10:39 pmORD-PDX
4h 40mnonstop
$257United Airlines
Find Deal
Fri, Mar 7 - Mon, Mar 10
11:59 pm - 5:48 amPDX-ORD
3h 49mnonstop
8:11 pm - 10:53 pmORD-PDX
4h 42mnonstop
$262United Airlines
Find Deal
Thu, Dec 12 - Mon, Dec 16
9:00 am - 2:55 pmPDX-MDW
3h 55mnonstop
8:10 pm - 10:40 pmMDW-PDX
4h 30mnonstop
$283Southwest
Find Deal
Mon, Jan 13 - Thu, Jan 16
1:42 pm - 7:40 pmPDX-ORD
3h 58mnonstop
9:55 am - 12:26 pmORD-PDX
4h 31mnonstop
$393American Airlines
Find Deal
Fri, Apr 25 - Sun, Apr 27

Spirit Airlines flights from Portland to Illinois

Our best Spirit Airlines deals on Portland to Illinois flight tickets
Spirit Airlines
Dec 10
PDX7:16 pmPortland
8h 14m
1 stop
ORD5:30 amChicago O'Hare Intl
Dec 17
ORD7:33 amChicago O'Hare Intl
14h 55m
2 stops
PDX8:28 pmPortland
Spirit Airlines
Dec 13
PDX5:00 amPortland
7h 26m
1 stop
ORD2:26 pmChicago O'Hare Intl
Dec 17
ORD7:33 amChicago O'Hare Intl
14h 55m
2 stops
PDX8:28 pmPortland
Spirit Airlines
Dec 9
PDX7:16 pmPortland
8h 14m
1 stop
ORD5:30 amChicago O'Hare Intl
Dec 16
ORD3:21 pmChicago O'Hare Intl
10h 27m
1 stop
PDX11:48 pmPortland

Frontier flights from Portland to Illinois

Our best Frontier deals on Portland to Illinois flight tickets
Frontier
Dec 11
PDX7:35 amPortland
28h 25m
1 stop
ORD2:00 pmChicago O'Hare Intl
Dec 16
ORD8:25 pmChicago O'Hare Intl
18h 09m
1 stop
PDX12:34 pmPortland
Frontier
Dec 9
PDX12:03 pmPortland
10h 10m
1 stop
MDW12:13 amChicago Midway
Dec 11
MDW8:15 amChicago Midway
18h 00m
1 stop
PDX12:15 amPortland
Frontier
Dec 11
PDX7:35 amPortland
28h 25m
1 stop
ORD2:00 pmChicago O'Hare Intl
Dec 16
ORD8:25 pmChicago O'Hare Intl
18h 09m
1 stop
PDX12:34 pmPortland

See travel insights to Illinois from

How to get the cheapest flight ticket from Portland 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 day to depart on your flight to Illinois?

The cheapest day to depart from Portland to Illinois is on a Wednesday when prices can be found for as low as $314. Flights from Portland to Illinois on a Monday will generally be more expensive and average around $373. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Portland to Illinois flight route?

Fly from Portland to Chicago O'Hare Intl for the best Portland - Illinois flight prices

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

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

Can stopping save me money on Portland to Illinois flights?

You could potentially save up to 46% on your flight if you consider stops on a Portland to Illinois flight.

Cheap Portland to Illinois flight deals and tips

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

Best Price Found

$53

Fastest flight time

3h 49m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Portland in the past 72 hours is $53. The best round-trip flight deal from Portland to Illinois found on momondo in the last 72 hours is $112.
The fastest flight from Portland to Illinois takes 3h 49m
Direct flights go from Portland 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 Portland Airport to Illinois?

    Prices for flights from Portland Airport to Illinois are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Illinois.

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

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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


Best airlines flying from Portland to Illinois

Compare and see reviews for airlines that fly from Portland to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $82Free CancellationRating
6.3
8,169 reviews
Search Spirit Airlines flights
FrontierPriceFrom $114Free CancellationRating
6.1
3,536 reviews
Search Frontier flights
DeltaPriceFrom $158Free CancellationRating
8.0
8,755 reviews
Search Delta flights
Alaska AirlinesPriceFrom $178Free CancellationRating
8.0
9,464 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $188Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $219Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
SouthwestPriceFrom $233Free CancellationRating
8.1
5,005 reviews
Search Southwest flights

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Portland to Illinois flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Portland.

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

Yes. momondo can track prices for Portland to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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