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$352+ Cheap flights from Decatur, IL (DEC) 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — PDX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Decatur to Oregon

Keep the following information in mind while searching for Decatur to Oregon flight deals. Data was last updated July 30, 2025.

Round-trip from

$420
(United Airlines)

One-way from

$352
(United Airlines)
From Decatur Arpt to Oregon
Search Deals
One-way flight from Decatur Arpt to Oregon
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Find flight deals from Decatur to Oregon

Cheapest flights from Decatur to Oregon
Explore the most affordable flight options available from Decatur to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:08 pmDEC - PDX
1 stop25h 32mUnited Airlines
Sat 11/2211:59 pmPDX - DEC
1 stop6h 49mUnited Airlines
Deal found 7/30$420

Cheapflights Fare Finder

 
Customize your flight search to find flights from Decatur 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 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Decatur to Oregon that are best for you.

Fly from

Decatur

Fly to

Oregon

Route

Depart

Return

Price

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Tue 11/18

7:08 pm-6:40 pm

1 stop25h 32m

Portland

Sat 11/22

11:59 pm-8:48 am

1 stop6h 49m

$420

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Fri 8/15

6:55 pm-11:43 am

1 stop18h 48m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Decatur to Oregon

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

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

Currently, November is the cheapest month in which you can book a flight from Decatur, Illinois to Oregon (average of $277). Flying from Decatur, Illinois to Oregon in March is currently the most expensive (average of $368). 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.

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 July 30, 2025.
Read through reviews of airlines operating flights from Decatur to Oregon, such as United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Decatur to Oregon. 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 from for flights from Decatur to Oregon?

    For a flight from Decatur to Oregon, you will be flying from Decatur Arpt. Decatur Arpt (DEC) is just 4.7 mi from the center of the city.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Decatur, Illinois to Oregon (average of $277). Flying from Decatur, Illinois to Oregon in March is currently the most expensive (average of $368). 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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