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$54+ Cheap flights from Illinois to Oregon

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PDX
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Illinois to Oregon

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Oregon (USOR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Illinois to Oregon

Cheapest flights from Illinois to Oregon
Explore the most affordable flight options available from Illinois to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/254:48 pmORD - PDX
1 stop9h 41mMultiple Airlines
Mon 12/29:40 pmPDX - ORD
1 stop12h 12mMultiple Airlines
Deal found 11/18$182
This FlightHub deal was found by Cheapflights users on 11/19. 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 11/286:00 amORD - PDX
1 stop20h 29mFrontier
Fri 12/612:03 pmPDX - ORD
1 stop10h 32mFrontier
Deal found 11/19$189
This FlightHub deal was found by Cheapflights users on 11/19. 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.
Tue 12/109:10 pmORD - PDX
1 stop25h 18mSpirit Airlines
Fri 12/135:00 amPDX - ORD
1 stop7h 26mSpirit Airlines
Deal found 11/19$190
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/257:00 amORD - PDX
Nonstop4h 38mAlaska Airlines
Wed 1/17:00 amPDX - ORD
Nonstop4h 05mAlaska Airlines
Deal found 11/19$197
This Frontier deal was found by Cheapflights users on 11/19. 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.
Sat 12/217:00 amMDW - PDX
1 stop10h 44mFrontier
Sat 1/47:06 pmPDX - MDW
1 stop12h 43mFrontier
Deal found 11/19$208
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/119:10 amORD - PDX
Nonstop4h 42mUnited Airlines
Sun 12/1511:59 pmPDX - ORD
Nonstop3h 49mUnited Airlines
Deal found 11/19$217
This Delta deal was found by Cheapflights users on 11/20. 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.
Mon 12/166:45 pmORD - EUG
1 stop18h 02mDelta
Wed 12/253:34 pmEUG - ORD
1 stop6h 25mDelta
Deal found 11/20$246
This CheapOair deal was found by Cheapflights users on 11/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:46 pmSTL - PDX
1 stop7h 29mFrontier
Wed 12/187:15 pmPDX - STL
1 stop13h 55mFrontier
Deal found 11/20$248
This Delta deal was found by Cheapflights users on 11/20. 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 12/314:50 pmMDW - BOI
1 stop8h 05mDelta
Tue 1/145:30 amBOI - MDW
1 stop6h 16mDelta
Deal found 11/20$248
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/39:10 pmORD - BOI
2 stops18h 40mSpirit Airlines
Sat 12/73:45 pmBOI - ORD
1 stop12h 45mSpirit Airlines
Deal found 11/19$248
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/132:15 pmORD - PDX
1 stop10h 04mAmerican Airlines
Sun 12/156:15 pmPDX - ORD
1 stop9h 03mAmerican Airlines
Deal found 11/19$258
This Delta deal was found by Cheapflights users on 11/19. 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.
Wed 12/116:05 amORD - RDM
1 stop6h 36mDelta
Tue 12/176:05 amRDM - ORD
1 stop9h 41mDelta
Deal found 11/19$259

Find flights from Illinois to Oregon within your budget

Customize your flight search to find flights from Illinois to Oregon 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Sat 1/18

10:47 pm-9:21 am

1 stop12h 34m

Portland

Wed 1/22

7:00 am-1:07 pm

Nonstop4h 07m

$181

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Sat 2/22

6:30 pm-12:37 am

1 stop8h 07m

Portland

Fri 2/28

9:18 pm-5:05 am

1 stop29h 47m

$182

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

Mon 2/17

6:40 am-12:37 am

1 stop19h 57m

Portland

Wed 2/19

6:32 am-12:17 am

1 stop15h 45m

$188

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Tue 12/10

9:10 pm-8:28 pm

1 stop25h 18m

Portland

Fri 12/13

5:00 am-2:26 pm

1 stop7h 26m

$190

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Tue 2/18

4:05 pm-6:44 pm

Nonstop4h 39m

Portland

Wed 2/19

7:00 am-1:04 pm

Nonstop4h 04m

$197

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 1/29

1:40 pm-9:50 pm

1 stop10h 10m

Portland

Wed 2/12

5:31 am-3:10 pm

1 stop7h 39m

$198

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

Mon 1/13

12:43 pm-8:46 pm

1 stop10h 03m

Portland

Thu 1/16

12:03 pm-12:17 am

1 stop10h 14m

$204

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Sat 1/18

9:23 am-12:06 pm

Nonstop4h 43m

Portland

Tue 1/21

1:38 pm-11:19 pm

1 stop7h 41m

$207

ChicagoPortland

MDW - PDX

MDWPDX

Chicago Midway

Wed 2/19

1:26 pm-5:35 pm

1 stop6h 09m

Portland

Fri 2/21

12:45 am-10:36 am

1 stop7h 51m

$216

ChicagoPortland

ORD - PDX

ORDPDX

Chicago O'Hare Intl

Tue 2/18

7:20 pm-11:54 pm

1 stop6h 34m

Portland

Wed 2/19

1:36 pm-11:56 pm

1 stop8h 20m

$216

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

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

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

Travel insights for flights from Illinois to Oregon

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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Oregon (average of $268). Flying from Illinois to Oregon in July is currently the most expensive (average of $341). 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 OR?

Find hourly flight availability from Illinois to Oregon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

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

Weekly flight availability from Illinois to Oregon

Explore weekly flight availability from Illinois to Oregon. 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 November 20, 2024.

The most flights from USIL to USOR are scheduled on a Tuesday (15 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Oregon by month

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

In terms of precipitation, rainfall in Oregon 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 Oregon when rainfall is around 0.7 in.

Temperature in Oregon by month

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

If weather is an important factor for your trip to Oregon, 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 Oregon

Get insights into the airlines that provide service to Oregon. 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 Oregon. Reviews last updated November 20, 2024.
To help decide which airline to fly from Illinois to Oregon, see what other customers have to say about Frontier, Alaska Airlines and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

WestJet
7.3
Good
2,811 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

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 Illinois to Oregon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from Illinois to Oregon for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Oregon 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 Oregon?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Oregon (average of $268). Flying from Illinois to Oregon in July is currently the most expensive (average of $341). 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.

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Alternative routes for Illinois to Oregon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Illinois to Oregon

Discover the top 7 airlines that operate flights from Illinois to Oregon. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$83Average$139FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$233FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$172Average$419FlexibilityNo cancel feeOn-time75%
DeltaCheapest$176Average$437FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$193Average$595FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$218Average$539FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$237Average$420FlexibilityNo cancel feeOn-time63%
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