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Cheap flights from Portland to Illinois from $81

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 5/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Portland to Illinois.
Spirit Airlines Logo
1:37 pm - 5:25 amPDX-ORD
13h 48m1 stop
Spirit Airlines Logo
11:50 am - 4:45 pmORD-PDX
6h 55m1 stop
$166Spirit Airlines
Find Deal
Fri, May 16 - Tue, May 20
Spirit Airlines Logo
1:37 pm - 5:25 amPDX-ORD
13h 48m1 stop
Spirit Airlines Logo
11:50 am - 4:45 pmORD-PDX
6h 55m1 stop
$168Spirit Airlines
Find Deal
Wed, Jun 4 - Wed, Jun 11
Alaska Airlines Logo
5:51 pm - 11:56 pmPDX-ORD
4h 05mnonstop
Alaska Airlines Logo
7:00 am - 9:23 amORD-PDX
4h 23mnonstop
$179Alaska Airlines
Find Deal
Sat, May 24 - Thu, May 29
Alaska Airlines Logo
5:40 pm - 11:50 pmPDX-ORD
4h 10mnonstop
Alaska Airlines Logo
2:05 pm - 4:34 pmORD-PDX
4h 29mnonstop
$227Alaska Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
6:30 pm - 5:11 amPDX-ORD
8h 41m1 stop
United Airlines Logo
12:45 pm - 3:15 pmORD-PDX
4h 30mnonstop
$237United Airlines
Find Deal
Wed, May 7 - Tue, May 13
Frontier Logo
1:15 pm - 2:48 pmPDX-MDW
23h 33m1 stop
Frontier Logo
8:03 pm - 11:27 pmMDW-PDX
29h 24m1 stop
$240Frontier
Find Deal
Thu, May 1 - Mon, May 12
Frontier Logo
6:20 am - 3:07 pmPDX-STL
6h 47m1 stop
Frontier Logo
9:55 pm - 3:42 pmSTL-PDX
19h 47m1 stop
$240Frontier
Find Deal
Thu, May 1 - Thu, May 8
American Airlines Logo
3:24 pm - 9:29 pmPDX-ORD
4h 05mnonstop
American Airlines Logo
8:00 am - 10:24 amORD-PDX
4h 24mnonstop
$242American Airlines
Find Deal
Mon, May 5 - Wed, May 7
American Airlines Logo
3:24 pm - 9:29 pmPDX-ORD
4h 05mnonstop
American Airlines Logo
8:00 am - 10:24 amORD-PDX
4h 24mnonstop
$253American Airlines
Find Deal
Mon, May 5 - Thu, May 8
United Airlines Logo
11:59 pm - 5:56 amPDX-ORD
3h 57mnonstop
United Airlines Logo
5:05 am - 9:46 amORD-PDX
6h 41m1 stop
$259United Airlines
Find Deal
Fri, May 9 - Sun, May 11

Spirit Airlines flights from Portland to Illinois

Our best Spirit Airlines deals on Portland to Illinois flight tickets
Spirit Airlines
May 16
PDX1:37 pmPortland
13h 48m
1 stop
ORD5:25 amChicago O'Hare Intl
May 20
ORD11:50 amChicago O'Hare Intl
6h 55m
1 stop
PDX4:45 pmPortland
Spirit Airlines
Jun 4
PDX1:37 pmPortland
13h 48m
1 stop
ORD5:25 amChicago O'Hare Intl
Jun 11
ORD11:50 amChicago O'Hare Intl
6h 55m
1 stop
PDX4:45 pmPortland
Spirit Airlines
May 16
PDX1:37 pmPortland
13h 48m
1 stop
ORD5:25 amChicago O'Hare Intl
May 20
ORD11:50 amChicago O'Hare Intl
6h 55m
1 stop
PDX4:45 pmPortland

Frontier flights from Portland to Illinois

Our best Frontier deals on Portland to Illinois flight tickets
Frontier
May 1
PDX1:15 pmPortland
23h 33m
1 stop
MDW2:48 pmChicago Midway
May 12
MDW8:03 pmChicago Midway
29h 24m
1 stop
PDX11:27 pmPortland
Frontier
Apr 21
PDX9:01 amPortland
13h 57m
1 stop
ORD12:58 amChicago O'Hare Intl
Apr 28
ORD5:24 pmChicago O'Hare Intl
9h 18m
1 stop
PDX12:42 amPortland
Frontier
Apr 15
PDX9:59 amPortland
12h 11m
1 stop
ORD12:10 amChicago O'Hare Intl
Apr 16
ORD6:40 amChicago O'Hare Intl
19h 57m
1 stop
PDX12:37 amPortland

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 month to fly to Illinois?

The cheapest month to fly to Illinois from Portland is in January. Flight prices, which tend to average around $263, 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 January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $291.

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 $468. Flights from Portland to Illinois on a Sunday will generally be more expensive and average around $620. 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 Portland to Illinois during this time can be as low as $356. Flights in the morning are often more expensive with an average ticket price of $560.

What is the cheapest Portland to Illinois flight route?

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

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

You are more likely to see cheaper flights to Illinois from Portland when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $353 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Portland for as low as $299 on momondo.

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.

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

$81

Fastest flight time

3h 40m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Portland in the past 72 hours is $81. The best round-trip flight deal from Portland to Illinois found on momondo in the last 72 hours is $166.
The fastest flight from Portland to Illinois takes 3h 40m
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
7,899 reviews
Search Spirit Airlines flights
FrontierPriceFrom $108Free CancellationRating
5.9
3,278 reviews
Search Frontier flights
DeltaPriceFrom $123Free CancellationRating
8.0
7,901 reviews
Search Delta flights
Alaska AirlinesPriceFrom $184Free CancellationRating
8.0
9,843 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $191Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $202Free CancellationRating
7.9
2,360 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $214Free CancellationRating
7.4
8,629 reviews
Search United Airlines flights
SouthwestPriceFrom $249Free CancellationRating
8.0
4,278 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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