What are the cheapest airlines to fly from Illinois to Portland one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $88. Alaska Airlines flights start at $110 while deals on Spirit Airlines start at $112 one-way.

What are the most popular routes from Illinois to Portland?

When deciding which route to take from Illinois to Portland consider Chicago O'Hare Intl - Portland, Chicago Midway - Portland or Lambert-St Louis - Portland as they are the most popular.

What are the cheapest flights from Illinois to Portland?

Looking for the cheapest flight from Illinois to Portland? While on average our users pay $781, our data indicates the cheapest price to be $113. The most popular route (Chicago O'Hare Intl - Portland), is priced around $164.

What are the most reliable airlines from Illinois to Portland?

Before booking your flight to Portland from Illinois, check out the most reliable airlines to get you to your destination on time: Brussels Airlines (88%), Air Canada (86%), United Airlines( 86%).

What are the most popular airlines that fly from Illinois to Portland?

The most popular airlines flying from Illinois to Portland are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 25 days in advance, which can save you up to 51% on flights from Illinois to Portland compared to booking the week you need them. Waiting 25 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $218. For sooner than that we have options available in the next 3 days from $218.

What is the cheapest month to fly from Illinois to Portland?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Portland. Flights to Portland from Illinois in September are about $316 on average during September, but can be found for as low as $146.

What airport do you fly into for flights to Portland from Illinois?

For a flight from Illinois to Portland, you will be flying into Portland. Portland (PDX) is just 6.0 mi from the center of the city.

Can I find deals for flights from Illinois to Portland that include hotel bookings?

Yes. In addition to deals on Illinois to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Illinois to Portland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Portland.

Can I find deals for business class flights from Illinois to Portland?

Yes. Cheapflights offers flight deals from Illinois to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$88+ Flights from Illinois to Portland

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Cheap flight deals from Illinois to Portland

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$218 (CheapOair)
One-way from	$88 (Cheapflightsfares)
Popular in	December
Cheapest in	September
Average price	$307
Good round-trip deal	$279 or less
Good one-way deal	$144 or less

Provider with most accurate pricing for Chicago (CHI)-Portland flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Portland flights.

Search Deals

From Illinois to Portland

Search Deals

One-way flight from Illinois to Portland

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Illinois to Portland.

Search Deals

Price to beat on a one-way flight from Illinois to Portland.

Search Deals

Find flight deals from Illinois to Portland

Cheapest flights from Illinois to Portland
Explore the most affordable flight options available from Illinois to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

Thu 5/88:14 pmORD - PDX

1 stop21h 28mMultiple Airlines

Mon 5/125:40 pmPDX - ORD

1 stop15h 15mMultiple Airlines

Deal found 4/15

$218

Mon 6/211:50 amORD - PDX

1 stop6h 55mSpirit Airlines

Wed 6/45:40 pmPDX - ORD

1 stop9h 45mSpirit Airlines

Deal found 4/14

$225

Wed 8/139:10 amORD - PDX

Nonstop4h 33mUnited Airlines

Tue 8/1911:59 pmPDX - ORD

Nonstop4h 01mUnited Airlines

Deal found 4/14

$227

Tue 6/37:19 pmSTL - PDX

1 stop6h 24mDelta

Tue 6/1011:13 pmPDX - STL

1 stop8h 24mDelta

Deal found 4/14

$227

Fri 5/96:15 amMDW - PDX

1 stop11h 27mFrontier

Sun 5/111:15 pmPDX - MDW

1 stop23h 33mFrontier

Deal found 4/14

$228

Sun 4/278:07 pmORD - PDX

1 stop15h 05mFrontier

Fri 5/21:15 pmPDX - ORD

1 stop13h 55mFrontier

Deal found 4/14

$228

Mon 4/286:58 pmSTL - PDX

1 stop7h 44mFrontier

Fri 5/26:20 amPDX - STL

1 stop25h 39mFrontier

Deal found 4/13

$228

Tue 7/17:18 pmORD - PDX

1 stop16h 27mAlaska Airlines

Sat 7/55:35 pmPDX - ORD

Nonstop4h 04mAlaska Airlines

Deal found 4/13

$229

Wed 5/287:00 amORD - PDX

Nonstop4h 23mHawaiian Airlines

Tue 6/37:21 amPDX - ORD

1 stop9h 38mHawaiian Airlines

Deal found 4/13

$233

Sat 5/315:25 pmMDW - PDX

1 stop6h 50mDelta

Fri 6/611:11 pmPDX - MDW

1 stop7h 29mDelta

Deal found 4/14

$234

Sat 5/315:15 pmORD - PDX

1 stop7h 00mDelta

Sun 6/12:00 pmPDX - ORD

1 stop7h 59mDelta

Deal found 4/14

$234

Fri 5/3012:08 pmORD - PDX

Nonstop4h 26mAmerican Airlines

Thu 6/512:07 amPDX - ORD

Nonstop3h 56mAmerican Airlines

Deal found 4/15

$236

Best flights from Illinois to Portland
Discover carefully curated flight deals from Illinois to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2025.

Thu 5/88:14 pmORD - PDX

1 stop21h 28mMultiple Airlines

Mon 5/125:40 pmPDX - ORD

1 stop15h 15mMultiple Airlines

Deal found 4/15

$218

Mon 6/211:50 amORD - PDX

1 stop6h 55mSpirit Airlines

Wed 6/45:40 pmPDX - ORD

1 stop9h 45mSpirit Airlines

Deal found 4/14

$225

Tue 6/37:00 amORD - PDX

Nonstop4h 23mAlaska Airlines

Sat 6/75:51 pmPDX - ORD

Nonstop4h 05mAlaska Airlines

Deal found 4/14

$227

Tue 6/37:19 pmSTL - PDX

1 stop6h 24mDelta

Tue 6/1011:13 pmPDX - STL

1 stop8h 24mDelta

Deal found 4/14

$227

Fri 5/96:15 amMDW - PDX

1 stop11h 27mFrontier

Sun 5/111:15 pmPDX - MDW

1 stop23h 33mFrontier

Deal found 4/14

$228

Tue 5/137:59 pmORD - PDX

Nonstop4h 37mUnited Airlines

Tue 5/2011:59 pmPDX - ORD

Nonstop3h 57mUnited Airlines

Deal found 4/14

$232

Wed 5/287:00 amORD - PDX

Nonstop4h 23mHawaiian Airlines

Tue 6/37:21 amPDX - ORD

1 stop9h 38mHawaiian Airlines

Deal found 4/13

$233

Tue 5/64:30 pmMDW - PDX

Nonstop4h 20mSouthwest

Wed 5/73:00 pmPDX - MDW

1 stop6h 50mSouthwest

Deal found 4/14

$247

Tue 5/275:19 amSTL - PDX

1 stop7h 30mAmerican Airlines

Sat 5/3111:59 pmPDX - STL

1 stop7h 57mAmerican Airlines

Deal found 4/14

$277

Mon 6/306:17 pmORD - PDX

1 stop6h 29mSun Country Air

Sun 7/611:59 pmPDX - ORD

1 stop15h 16mSun Country Air

Deal found 4/13

$345

Sun 4/278:07 pmORD - PDX

1 stop15h 05mFrontier

Fri 5/21:15 pmPDX - ORD

1 stop13h 55mFrontier

Deal found 4/14

$228

Sat 5/315:25 pmMDW - PDX

1 stop6h 50mDelta

Thu 6/511:11 pmPDX - MDW

1 stop7h 29mDelta

Deal found 4/14

$234

Last-minute flights from Illinois to Portland
Discover last-minute flight deals from Illinois to Portland. Data last updated April 15, 2025 and is based on user searches.

Sun 4/207:12 pmORD - PDX

1 stop16h 00mSpirit Airlines

Thu 4/247:01 pmPDX - ORD

1 stop9h 32mSpirit Airlines

Deal found 4/15

$257

Sun 4/203:16 pmORD - PDX

Nonstop4h 34mAlaska Airlines

Thu 4/247:00 amPDX - ORD

Nonstop4h 07mAlaska Airlines

Deal found 4/14

$393

Tue 4/226:30 amSTL - PDX

1 stop6h 22mAlaska Airlines

Sat 4/269:35 amPDX - STL

1 stop12h 24mAlaska Airlines

Deal found 4/14

$382

Tue 4/2212:15 pmSTL - PDX

2 stops10h 25mSouthwest

Sat 4/267:00 amPDX - STL

1 stop6h 00mSouthwest

Deal found 4/14

$388

Tue 4/227:40 amSTL - PDX

1 stop6h 48mDelta

Fri 4/2512:59 amPDX - STL

1 stop7h 42mDelta

Deal found 4/14

$411

Tue 4/2210:58 amPIA - PDX

1 stop6h 17mUnited Airlines

Sat 4/2611:59 pmPDX - PIA

1 stop8h 13mUnited Airlines

Deal found 4/14

$491

Thu 4/248:01 pmMDW - PDX

1 stop6h 41mFrontier

Sun 4/276:20 amPDX - MDW

1 stop10h 46mFrontier

Deal found 4/14

$238

Thu 4/248:00 amORD - PDX

1 stop7h 37mMultiple Airlines

Sun 4/276:41 pmPDX - ORD

1 stop8h 33mMultiple Airlines

Deal found 4/14

$258

Thu 4/242:07 pmORD - PDX

Nonstop4h 33mHawaiian Airlines

Tue 4/297:00 amPDX - ORD

Nonstop4h 07mHawaiian Airlines

Deal found 4/14

$493

Fri 4/259:17 amORD - PDX

Nonstop4h 35mUnited Airlines

Wed 5/711:59 pmPDX - ORD

Nonstop3h 57mUnited Airlines

Deal found 4/14

$402

Fri 4/254:15 pmMDW - PDX

Nonstop4h 20mSouthwest

Wed 5/73:00 pmPDX - MDW

1 stop6h 50mSouthwest

Deal found 4/14

$412

Fri 4/253:02 pmMDW - PDX

1 stop9h 07mDelta

Sun 4/2712:59 amPDX - MDW

1 stop6h 41mDelta

Deal found 4/14

$513

One-way flights from Illinois to Portland
Search for one-way flight options from Illinois to Portland. Find affordable one-way fares based on user searches. Data last updated April 15, 2025.

Sat 5/178:15 pmSTL - PDX

1 stop6h 23mFrontier

Deal found 4/14

$88

Wed 5/287:00 amORD - PDX

Nonstop4h 23mAlaska Airlines

Deal found 4/14

$110

Fri 5/166:59 pmORD - PDX

2 stops23h 46mSpirit Airlines

Deal found 4/14

$112

Tue 5/204:30 pmMDW - PDX

Nonstop4h 20mSouthwest

Deal found 4/14

$114

Sat 6/217:17 amORD - PDX

Nonstop4h 22mAmerican Airlines

Deal found 4/14

$114

Mon 6/167:15 pmSTL - PDX

1 stop6h 23mDelta

Deal found 4/14

$114

Thu 5/158:03 pmMDW - PDX

1 stop6h 35mFrontier

Deal found 4/14

$118

Fri 5/25:21 pmORD - PDX

1 stop9h 17mFrontier

Deal found 4/14

$119

Sun 4/2012:45 pmORD - PDX

1 stop7h 41mUnited Airlines

Deal found 4/13

$120

Sat 7/124:00 pmORD - PDX

1 stop7h 40mSouthwest

Deal found 4/14

$123

Tue 7/87:05 amORD - PDX

1 stop8h 13mDelta

Deal found 4/15

$124

Fri 6/67:00 amORD - PDX

Nonstop4h 23mHawaiian Airlines

Deal found 4/14

$125

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Thu 5/8

8:14 pm-3:42 pm

1 stop21h 28m

Portland

Mon 5/12

5:40 pm-10:55 am

1 stop15h 15m

$218

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Mon 6/2

11:50 am-4:45 pm

1 stop6h 55m

Portland

Wed 6/4

5:40 pm-5:25 am

1 stop9h 45m

$225

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Wed 8/13

9:10 am-11:43 am

Nonstop4h 33m

Portland

Tue 8/19

11:59 pm-6:00 am

Nonstop4h 01m

$227

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 6/3

7:19 pm-11:43 pm

1 stop6h 24m

Portland

Tue 6/10

11:13 pm-9:37 am

1 stop8h 24m

$227

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

Fri 5/9

6:15 am-3:42 pm

1 stop11h 27m

Portland

Sun 5/11

1:15 pm-2:48 pm

1 stop23h 33m

$228

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Sun 4/27

8:07 pm-9:12 am

1 stop15h 05m

Portland

Fri 5/2

1:15 pm-5:10 am

1 stop13h 55m

$228

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Mon 4/28

6:58 pm-12:42 am

1 stop7h 44m

Portland

Fri 5/2

6:20 am-9:59 am

1 stop25h 39m

$228

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Tue 7/1

7:18 pm-9:45 am

1 stop16h 27m

Portland

Sat 7/5

5:35 pm-11:39 pm

Nonstop4h 04m

$229

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Wed 5/28

7:00 am-9:23 am

Nonstop4h 23m

Portland

Tue 6/3

7:21 am-6:59 pm

1 stop9h 38m

$233

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

Sat 5/31

5:25 pm-10:15 pm

1 stop6h 50m

Portland

Fri 6/6

11:11 pm-8:40 am

1 stop7h 29m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 60 results

...

Best time to book a flight from Illinois to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Illinois with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Portland

What is the cheapest month to book a flight from Illinois to Portland?

Currently, November is the cheapest month in which you can book a flight from Illinois to Portland (average of $277). Flying from Illinois to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to PDX?

When flying from Illinois to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Portland

The most flights from USIL to PDX are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Rainfall in Portland by month

In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

Temperature in Portland by month

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Portland

Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Illinois to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,876 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,279 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,917 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Hawaiian Airlines

7.9

Good

2,374 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,658 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

What airport do you fly into for flights to Portland from Illinois?
For a flight from Illinois to Portland, you will be flying into Portland. Portland (PDX) is just 6.0 mi from the center of the city.
What are the cheapest airlines to fly from Illinois to Portland one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $88. Alaska Airlines flights start at $110 while deals on Spirit Airlines start at $112 one-way.
What are the most popular routes from Illinois to Portland?
When deciding which route to take from Illinois to Portland consider Chicago O'Hare Intl - Portland, Chicago Midway - Portland or Lambert-St Louis - Portland as they are the most popular.
What are the most reliable airlines from Illinois to Portland?
Before booking your flight to Portland from Illinois, check out the most reliable airlines to get you to your destination on time: Brussels Airlines (88%), Air Canada (86%), United Airlines( 86%).
What are the cheapest flights from Illinois to Portland?
Looking for the cheapest flight from Illinois to Portland? While on average our users pay $781, our data indicates the cheapest price to be $113. The most popular route (Chicago O'Hare Intl - Portland), is priced around $164.
Can I find deals for flights from Illinois to Portland that include hotel bookings?
Yes. In addition to deals on Illinois to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Portland.
Can I find deals for business class flights from Illinois to Portland?
Yes. Cheapflights offers flight deals from Illinois to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Illinois to Portland?
Currently, November is the cheapest month in which you can book a flight from Illinois to Portland (average of $277). Flying from Illinois to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Pacific City

Stevenson

Troutdale

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Top 8 airlines flying from Illinois to Portland

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$81	Average$137	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$108	Average$217	FlexibilityNo cancel fee	On-time62%
Hawaiian Airlines	Cheapest$134	Average$289	FlexibilityNo cancel fee	On-time85%
Delta	Cheapest$176	Average$366	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$177	Average$287	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$197	Average$538	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$215	Average$477	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$238	Average$433	FlexibilityNo cancel fee	On-time63%

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$88+ Cheap flights from Illinois to Portland (PDX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Portland with Cheapflights

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Cheap flight deals from Illinois to Portland

Keep the following information in mind while searching for Illinois to Portland flight deals. Data was last updated April 15, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Illinois to Portland

Cheapest flights from Illinois to PortlandExplore the most affordable flight options available from Illinois to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

Explore the most affordable flight options available from Illinois to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Portland that are best for you.

Best time to book a flight from Illinois to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Portland

What is the cheapest month to book a flight from Illinois to Portland?

What is the cheapest time of day to fly from IL to PDX?

Find hourly flight availability from Illinois to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

Weekly flight availability from Illinois to Portland

Explore weekly flight availability from Illinois to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 15, 2025.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

Reviews of airlines servicing Portland

Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Illinois to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Portland from Illinois?

What are the cheapest airlines to fly from Illinois to Portland one-way?

What are the most popular routes from Illinois to Portland?

What are the most reliable airlines from Illinois to Portland?

What are the cheapest flights from Illinois to Portland?

Can I find deals for flights from Illinois to Portland that include hotel bookings?

How can I find direct flights from Illinois to Portland?

Can I find deals for business class flights from Illinois to Portland?

What is the cheapest month to book a flight from Illinois to Portland?

Traveling to a place near Illinois?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Illinois to Portland

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Cheapest flights from Illinois to Portland
Explore the most affordable flight options available from Illinois to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.