What airlines fly to Portland?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Portland from Illinois according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 8 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

How many flights depart from Illinois to Portland on average per day?

As of November 2025, there are 15 flights per day flying from Illinois to Portland. The most common time of day flights depart is 4:00PM, with 48% of flights taking off in the afternoon.

How many flights depart from Illinois to Portland on average per week?

As of November 2025, 109 flights take off from Illinois and land in Portland each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

How long does it take to fly to Portland?

On average, it takes 4h 20m to fly from Illinois to Portland if you fly out of Chicago (the most popular airport in Illinois) and into Portland (the most popular airport in Portland). If you’re flying out of Peoria and into Portland, then the flight time is around 6h 46m.

What is the cheapest airline that flies from Illinois to Portland?

Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Illinois to Portland

When did momondo last update prices for flights from Illinois to Portland Airport?

Prices for flights from Illinois to Portland Airport refresh daily.

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

As of November 2025, there are 8 operators available to choose from for flights from Illinois to Portland Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$60 Cheap Flights from Illinois to Portland in 2025/26

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3:30 pm - 11:56 amSTL-PDX

22h 26m2 stops

12:55 pm - 10:14 amPDX-STL

19h 19m1 stop

$200Frontier

Find Deal

qui, dez 4 - sex, dez 12

7:43 pm - 11:56 amSTL-PDX

18h 13m1 stop

7:26 pm - 11:22 amPDX-STL

13h 56m1 stop

$205Frontier

Find Deal

qua, dez 3 - dom, dez 7

7:00 am - 9:39 amORD-PDX

4h 39mnonstop

7:04 am - 1:09 pmPDX-ORD

4h 05mnonstop

$206Hawaiian Airlines

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qui, nov 27 - sáb, dez 6

6:00 am - 10:50 amORD-PDX

6h 50m1 stop

12:55 pm - 12:12 amPDX-ORD

9h 17m1 stop

$207Multiple Airlines

Find Deal

seg, dez 8 - sex, dez 12

7:00 am - 9:50 amORD-PDX

4h 50mnonstop

7:00 am - 1:09 pmPDX-ORD

4h 09mnonstop

$208Hawaiian Airlines

Find Deal

qua, dez 24 - qua, dez 31

11:44 am - 11:56 amORD-PDX

26h 12m2 stops

5:32 pm - 6:05 amPDX-ORD

10h 33m1 stop

$216Multiple Airlines

Find Deal

qui, dez 4 - dom, dez 7

2:05 pm - 4:48 pmORD-PDX

4h 43mnonstop

7:00 am - 1:09 pmPDX-ORD

4h 09mnonstop

$217Alaska Airlines

Find Deal

qua, dez 17 - qua, dez 31

7:00 am - 9:50 amORD-PDX

4h 50mnonstop

7:00 am - 1:09 pmPDX-ORD

4h 09mnonstop

$227Alaska Airlines

Find Deal

qui, dez 18 - qua, dez 31

9:40 am - 12:15 pmMDW-PDX

4h 35mnonstop

6:15 am - 12:10 pmPDX-MDW

3h 55mnonstop

$227Southwest

Find Deal

sáb, dez 6 - seg, dez 8

8:25 am - 4:45 pmMDW-PDX

10h 20m1 stop

6:00 am - 4:45 pmPDX-MDW

8h 45m1 stop

$236Southwest

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qui, nov 27 - sáb, dez 6

Southwest flights from Illinois to Portland

Our best Southwest deals on Illinois to Portland flight tickets

Southwest

Dec 6

MDW9:40 amChicago Midway

4h 35m

PDX12:15 pmPortland

Dec 8

PDX6:15 amPortland

3h 55m

MDW12:10 pmChicago Midway

$227

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Southwest

Nov 27

MDW8:25 amChicago Midway

10h 20m

1 stop

PDX4:45 pmPortland

Dec 6

PDX6:00 amPortland

8h 45m

1 stop

MDW4:45 pmChicago Midway

$236

Find similar

Southwest

Dec 6

MDW9:40 amChicago Midway

4h 35m

PDX12:15 pmPortland

Dec 8

PDX5:30 amPortland

7h 30m

1 stop

MDW3:00 pmChicago Midway

$237

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Frontier flights from Illinois to Portland

Our best Frontier deals on Illinois to Portland flight tickets

Frontier

Dec 4

STL3:30 pmLambert-St Louis

22h 26m

2 stops

PDX11:56 amPortland

Dec 12

PDX12:55 pmPortland

19h 19m

1 stop

STL10:14 amLambert-St Louis

$200

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Frontier

Dec 3

STL7:43 pmLambert-St Louis

18h 13m

1 stop

PDX11:56 amPortland

Dec 7

PDX7:26 pmPortland

13h 56m

1 stop

STL11:22 amLambert-St Louis

$205

Find similar

Frontier

Dec 14

ORD12:59 pmChicago O'Hare Intl

21h 37m

1 stop

PDX8:36 amPortland

Dec 18

PDX12:47 pmPortland

25h 55m

2 stops

ORD4:42 pmChicago O'Hare Intl

$213

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Fly from

Fly to

Route

Depart

Return

Price

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

qui 12/4

3:30 pm-11:56 am

2 stops22h 26m

Portland

sex 12/12

12:55 pm-10:14 am

1 stop19h 19m

$200

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

qua 12/3

7:43 pm-11:56 am

1 stop18h 13m

Portland

dom 12/7

7:26 pm-11:22 am

1 stop13h 56m

$205

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

qui 11/27

7:00 am-9:39 am

Nonstop4h 39m

Portland

sáb 12/6

7:04 am-1:09 pm

Nonstop4h 05m

$206

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

seg 12/8

6:00 am-10:50 am

1 stop6h 50m

Portland

sex 12/12

12:55 pm-12:12 am

1 stop9h 17m

$207

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

qua 12/24

7:00 am-9:50 am

Nonstop4h 50m

Portland

qua 12/31

7:00 am-1:09 pm

Nonstop4h 09m

$208

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

qui 12/4

11:44 am-11:56 am

2 stops26h 12m

Portland

dom 12/7

5:32 pm-6:05 am

1 stop10h 33m

$216

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

qua 12/17

2:05 pm-4:48 pm

Nonstop4h 43m

Portland

qua 12/31

7:00 am-1:09 pm

Nonstop4h 09m

$217

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

qui 12/18

7:00 am-9:50 am

Nonstop4h 50m

Portland

qua 12/31

7:00 am-1:09 pm

Nonstop4h 09m

$227

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

sáb 12/6

9:40 am-12:15 pm

Nonstop4h 35m

Portland

seg 12/8

6:15 am-12:10 pm

Nonstop3h 55m

$227

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

qui 11/27

8:25 am-4:45 pm

1 stop10h 20m

Portland

sáb 12/6

6:00 am-4:45 pm

1 stop8h 45m

$236

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How to get the cheapest flight ticket from Illinois to Portland

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

Prices

Airlines

Other information

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Illinois is in January. Flight prices, which tend to average around $265, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in January, then you should wait until September to fly from Illinois, when ticket prices are also cheap, with an average price of $278.

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

The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as $333. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Monday, with ticket prices averaging around $409.

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

The cheapest time of day to fly to Portland is in the evening when flights can be purchased for as low as $327. At noon is when there is more demand to fly to Portland, so prices are often more expensive at around $487 per ticket.

What is the cheapest Illinois to Portland flight route?

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

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

You are more likely to see cheaper flights to Portland from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $336 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Illinois for as low as $272 on momondo.

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

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

Cheap Illinois to Portland flight deals and tips

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

Best Price Found	$118
Fastest flight time	4h 20m
Direct flights	Every day
Airports in Portland	1 airport

The best one-way flight to Portland from Illinois in the past 72 hours is $118. The best round-trip flight deal from Illinois to Portland found on momondo in the last 72 hours is $268.

The fastest flight from Illinois to Portland takes 4h 20m

Direct flights go from Illinois to Portland every day.

There is 1 airport near Portland: Portland (PDX)

Search flight deals

When did momondo last update prices for flights from Illinois to Portland Airport?
Prices for flights from Illinois to Portland Airport refresh daily.
How many operators does momondo search for flights from Illinois to Portland Airport?
As of November 2025, there are 8 operators available to choose from for flights from Illinois to Portland Airport.
How old do you have to be to fly from Illinois to Portland Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Portland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Portland is Boeing 737-800 (25.59% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (14.97%), Boeing 737-900 (13.39%), and Airbus A321neo (9.66%).

Best airlines flying from Illinois to Portland

Compare and see reviews for airlines that fly from Illinois to Portland with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $86	Free Cancellation	Rating 6.3 8,132 reviews	Search Spirit Airlines flights
Delta	PriceFrom $88	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
Frontier	PriceFrom $110	Free Cancellation	Rating 5.8 3,111 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $134	Free Cancellation	Rating 7.8 2,804 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $208	Free Cancellation	Rating 8.0 11,259 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $213	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
United Airlines	PriceFrom $225	Free Cancellation	Rating 7.4 9,011 reviews	Search United Airlines flights
Southwest	PriceFrom $238	Free Cancellation	Rating 8.0 4,238 reviews	Search Southwest flights

Lincoln City

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Salem

Astoria

Long Beach

Depoe Bay

Rockaway Beach

Beaverton

Hillsboro

Hood River

Gresham

McMinnville

Longview

The Dalles

Pacific City

Tigard

Manzanita

Tillamook

Why use momondo?

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

Finding the right flight to Portland from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portland quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Portland from Illinois with this policy.

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

Once all potential Illinois to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Illinois and alert you when they change.

An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Illinois to Portland from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Portland departing on 1/7. 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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Southwest flights from Illinois to Portland

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Frontier flights from Illinois to Portland

Our best Frontier deals on Illinois to Portland flight tickets

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How to get the cheapest flight ticket from Illinois to Portland

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 Portland?

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

The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as $333. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Monday, with ticket prices averaging around $409.

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

The cheapest time of day to fly to Portland is in the evening when flights can be purchased for as low as $327. At noon is when there is more demand to fly to Portland, so prices are often more expensive at around $487 per ticket.

What is the cheapest Illinois to Portland flight route?

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

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

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

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

What is the cheapest airline that flies from Illinois to Portland?

Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Illinois to Portland

What airlines fly to Portland?

How many flights depart from Illinois to Portland on average per day?

As of November 2025, there are 15 flights per day flying from Illinois to Portland. The most common time of day flights depart is 4:00PM, with 48% of flights taking off in the afternoon.

How many flights depart from Illinois to Portland on average per week?

As of November 2025, 109 flights take off from Illinois and land in Portland each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

How long does it take to fly to Portland?

On average, it takes 4h 20m to fly from Illinois to Portland if you fly out of Chicago (the most popular airport in Illinois) and into Portland (the most popular airport in Portland). If you’re flying out of Peoria and into Portland, then the flight time is around 6h 46m.

Cheap Illinois to Portland flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Portland

When did momondo last update prices for flights from Illinois to Portland Airport?

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

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

What documentation or ID do you need to fly to Portland Airport?

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

Best airlines flying from Illinois to Portland

Compare and see reviews for airlines that fly from Illinois to Portland with momondo

Traveling to a place near Portland?

Why use momondo?

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

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

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

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

An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Oregon