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$54+ Cheap flights from Oregon to Illinois

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ORD
Nov 5 — Nov 121
Tue 11/5
Tue 11/12
1 adult, Economy
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Find flight deals from Oregon to Illinois

Cheapest flights from Oregon to Illinois
Explore the most affordable flight options available from Oregon to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This Orbitz deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/812:03 pmPDX - ORD
1 stop10h 36mMultiple Airlines
Wed 12/111:07 pmORD - PDX
1 stop11h 48mMultiple Airlines
Deal found 10/30$197
This Frontier deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/106:05 amPDX - ORD
1 stop12h 17mFrontier
Tue 11/194:44 pmORD - PDX
1 stop9h 30mFrontier
Deal found 10/31$198
This FlightHub deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1212:03 pmPDX - MDW
1 stop10h 10mFrontier
Mon 12/1612:43 pmMDW - PDX
1 stop25h 51mFrontier
Deal found 10/30$198
This FareScan deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/249:33 pmPDX - ORD
1 stop12h 19mSpirit Airlines
Tue 12/39:10 pmORD - PDX
2 stops25h 18mSpirit Airlines
Deal found 10/30$200
This Trip.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/206:05 amPDX - STL
2 stops34h 35mFrontier
Fri 11/225:38 pmSTL - PDX
1 stop8h 51mFrontier
Deal found 10/30$212
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/106:05 amRDM - ORD
1 stop9h 41mDelta
Sat 12/146:05 amORD - RDM
1 stop6h 36mDelta
Deal found 10/29$216
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:00 pmEUG - ORD
1 stop8h 06mUnited Airlines
Wed 12/114:10 pmORD - EUG
1 stop7h 49mUnited Airlines
Deal found 10/31$216
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/77:00 amPDX - ORD
Nonstop3h 57mUnited Airlines
Tue 12/104:00 pmORD - PDX
Nonstop4h 41mUnited Airlines
Deal found 10/31$217
This Alaska Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/77:00 amPDX - ORD
Nonstop4h 02mAlaska Airlines
Tue 12/107:00 amORD - PDX
1 stop18h 44mAlaska Airlines
Deal found 10/31$219
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/105:46 amEUG - ORD
2 stops11h 59mDelta
Thu 12/127:10 pmORD - EUG
1 stop6h 48mDelta
Deal found 10/30$221
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:40 amPDX - STL
1 stop8h 16mUnited Airlines
Mon 12/91:39 pmSTL - PDX
1 stop6h 25mUnited Airlines
Deal found 10/29$222
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/62:07 pmPDX - ORD
1 stop7h 52mDelta
Wed 12/116:45 pmORD - PDX
1 stop6h 44mDelta
Deal found 10/31$223

Find flights from Oregon to Illinois within your budget

Customize your flight search to find flights from Oregon to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Tue 11/19

11:51 am-10:06 pm

3 stops33h 15m

$79

BoiseChicago

BOI - ORD

BOIORD

Boise Air Term. Gowen Fld

Mon 12/2

7:49 pm-11:52 am

1 stop15h 03m

$89

PortlandChicago

PDX - MDW

PDXMDW

Portland

Mon 11/25

6:05 am-1:40 pm

1 stop5h 35m

$97

PortlandChicago

PDX - ORD

PDXORD

Portland

Wed 12/25

5:10 am-1:51 pm

1 stop6h 41m

$99

RedmondChicago

RDM - ORD

RDMORD

Bend/Redmond

Fri 1/24

2:00 pm-11:19 pm

1 stop7h 19m

$108

PortlandChicago

PDX - MDW

PDXMDW

Portland

Wed 1/8

9:00 am-2:55 pm

Nonstop3h 55m

$109

PortlandChicago

PDX - ORD

PDXORD

Portland

Thu 1/9

1:52 pm-11:59 pm

1 stop8h 07m

$111

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Sat 12/7

1:57 pm-10:33 pm

1 stop6h 36m

$113

PortlandChicago

PDX - ORD

PDXORD

Portland

Wed 12/18

6:04 pm-10:45 am

1 stop14h 41m

$120

PortlandChicago

PDX - ORD

PDXORD

Portland

Sat 12/14

7:16 pm-5:30 am

1 stop8h 14m

$93

Flights are sorted by cheapest first

Deals found on 10/30

Showing 1-10 of 60 results
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Best time to book a flight from Oregon to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Oregon 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.

Travel insights for flights from Oregon to Illinois

Get recent, data-driven insights about flights from Oregon to Illinois including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Oregon to Illinois (average of $232). Flying from Oregon to Illinois in June is currently the most expensive (average of $308). 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 OR to IL?

Find hourly flight availability from Oregon to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to Illinois as you normally would.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated October 31, 2024.
See what other customers who have flown with Frontier, Delta and Alaska Airlines from Oregon to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,116 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,420 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,835 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,240 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Allegiant Air
7.4
Good
866 reviews
Southwest
8.1
Very good
5,116 reviews

Crew

8.7

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

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

  • Can I find flights from Oregon to Illinois for under $100 on Cheapflights?

    Yes, there are multiple flights from Oregon to Illinois for under $100. The cheapest flight booked recently is on Frontier for just $98, but on average you can expect to pay $202.

  • Are there nonstop flights from Oregon to Illinois for under $200 on Cheapflights?

    Cheapflights has at least 4 direct flights from Oregon to Illinois under $200. A good price for a nonstop flight from Oregon to Illinois is less than $292.

  • Are there last-minute flights available from Oregon to Illinois for under $200?

    There are currently 20+ open flights from Oregon to Illinois within the next 7 days for less than $200.

  • What days are nonstop flights available from Oregon to Illinois?

    Nonstop flights are available for this route on the following days: Monday, Thursday, Friday, Saturday.

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

    On average 30 flights depart from Oregon to Illinois per day.
    Morning (6am - Noon) - 93% of flight departures
    Evening (6pm - Midnight) - 7% of flight departures

  • How long is the flight from Oregon to Illinois?

    A quick flight from Oregon to Illinois can take about 8h 14m. Frontier provides one of the quickest options available for as low as $98. Airlines will cover a distance of 1744 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $54. Users have also found prices from $79 and $99 on Spirit Airlines and Delta, respectively.

  • What does PDX to ORD mean?

    PDX stands for Portland Airport, while ORD stands for Chicago O'Hare Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Ready for more IATA code knowledge? These are related airports for your current travel destination: Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI).

  • Can I find deals for flights from Oregon to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Oregon to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Oregon to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Oregon to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Oregon to Illinois?

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

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

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

  • Can I find deals for flights from Oregon to Illinois that allow pets onboard?

    Many airlines flying from Oregon to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Oregon to Illinois?

    Yes, you can often find last-minute deals on Oregon to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Oregon to Illinois flight deals updated?

    The Oregon to Illinois flight deals you see on this page were last updated on 10/31.

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

    Currently, September is the cheapest month in which you can book a flight from Oregon to Illinois (average of $232). Flying from Oregon to Illinois in June is currently the most expensive (average of $308). 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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Top 7 airlines flying from Oregon to Illinois

Discover the top 7 airlines that operate flights from Oregon to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$136FlexibilityNo cancel feeOn-time65%
FrontierCheapest$114Average$234FlexibilityNo cancel feeOn-time62%
DeltaCheapest$158Average$402FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$178Average$490FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$188Average$549FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$219Average$550FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$233Average$404FlexibilityNo cancel feeOn-time63%
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