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$515+ Cheap flights from Decatur, IL (DEC) to Oregon

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — PDX
Sep 5 — Sep 121
Sat 9/5
Sat 9/12
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 August 6, 2026.

This United Airlines deal was found by Cheapflights users on 8/2. 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 11/106:57 pm -
1 stop18h 50m
Sat 11/147:00 am -
1 stop8h 55m
Deal found 8/2$515
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/17:20 pm -
1 stop29h 32m
Mon 9/711:02 pm -
1 stop17h 42m
Deal found 8/2$599
This United Airlines deal was found by Cheapflights users on 8/3. 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 8/187:20 pm -
1 stop25h 33m
Sat 8/227:16 am -
1 stop8h 43m
Deal found 8/3$620
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/227:20 pm -
1 stop16h 09m
Wed 8/265:00 am -
2 stops10h 59m
Deal found 8/6$637

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 August 6, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$515
(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

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 August 6, 2026.
Use the filters below to find and compare flights from Decatur to Oregon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-9:02 pm

2 stops28h 05m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$521

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 9/1

7:20 pm-10:52 pm

1 stop29h 32m

Portland

Mon 9/7

11:02 pm-6:44 pm

1 stop17h 42m

$599
Quickest round-trip

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 8/18

7:20 pm-12:00 pm

2 stops18h 40m

Portland

Sat 8/22

7:16 am-5:59 pm

1 stop8h 43m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Sorted by cheapest first

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

No data available for this route at this time. Please check back soon.

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 18h 50m. 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.

See more FAQs

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