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$251+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — PDX
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 12/319:44 amDEC - PDX
2 stops13h 04mUnited Airlines
Sun 1/411:55 pmPDX - DEC
1 stop7h 10mUnited Airlines
Deal found 12/16$555
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/287:09 pmDEC - PDX
2 stops20h 11mUnited Airlines
Fri 1/27:10 amPDX - DEC
1 stop23h 55mUnited Airlines
Deal found 12/16$1,010

Find flight deals from Decatur to Oregon

Keep the following information in mind while searching for Decatur to Oregon flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$404
(United Airlines)

One-way from

$251
(United Airlines)
Provider with most accurate pricing for Decatur Arpt-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Decatur Arpt-Portland flights.
Search Deals
From Decatur Arpt to Oregon
Search Deals
One-way flight from Decatur Arpt to Oregon
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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 December 18, 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

Fri 1/9

9:49 am-6:56 pm

2 stops11h 07m

Portland

Mon 1/12

7:00 am-6:01 pm

1 stop9h 01m

$404

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Thu 1/8

9:49 am-9:49 pm

2 stops14h 00m

Portland

Sun 1/11

11:59 pm-9:05 am

1 stop7h 06m

$404

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Fri 1/9

9:49 am-9:49 pm

2 stops14h 00m

Portland

Fri 2/6

7:00 am-6:01 pm

1 stop9h 01m

$404

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Fri 1/9

9:49 am-9:12 pm

2 stops13h 23m

Portland

Sat 1/10

7:00 am-6:01 pm

1 stop9h 01m

$404

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Fri 2/20

7:15 pm-11:55 am

1 stop18h 40m

Portland

Tue 2/24

11:59 pm-8:52 am

1 stop6h 53m

$424

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Fri 1/9

9:49 am-12:00 pm

1 stop28h 11m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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, April is the cheapest month in which you can book a flight from Decatur, Illinois to Oregon (average of $247). Flying from Decatur, Illinois to Oregon in December is currently the most expensive (average of $450). 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.

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.

  • How long is the flight from Decatur, Illinois to Oregon?

    United Airlines can get you from Decatur, Illinois to Oregon in just under 11h 07m. Your travel time can differ by up to . The distance between Decatur, Illinois and Oregon is about 1743 mi.

  • 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, April is the cheapest month in which you can book a flight from Decatur, Illinois to Oregon (average of $247). Flying from Decatur, Illinois to Oregon in December is currently the most expensive (average of $450). 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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