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

A quick flight from Oregon to Decatur, Illinois can take about 6h 44m. United Airlines provides one of the quickest options available for as low as $454. The distance from Oregon to Decatur, Illinois is about 1743 mi.

In terms of precipitation, rainfall in Decatur, Illinois ranges from 1.7 - 4.4 inches per month. June is typically the wettest month, when rainfall can reach 4.4 in. January is typically the driest time to visit Decatur, Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Decatur, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

What is the cheapest time of day to fly from OR to DEC?

When flying from Oregon to Decatur, Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Decatur from Oregon?

If you book a flight to Decatur from Oregon, you will be flying to Decatur Arpt, which is the city’s only airport. Decatur Arpt (DEC) is located 4.7 mi from the center of Decatur.

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

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

How can I find direct flights from Oregon to Decatur?

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

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

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

$351+ Cheap Flights from Oregon to Decatur, IL

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Cheap flight deals from Oregon to Decatur

Cheapest

Best

Last-minute

One-way

Cheapest flights from Oregon to Decatur
Explore the most affordable flight options available from Oregon to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Thu 9/1711:02 pm -

1 stop7h 03m

Mon 9/219:12 am -

2 stops14h 51m

Deal found 9/2

$430

Thu 12/1711:59 pm -

1 stop6h 44m

Sun 1/179:42 am -

1 stop7h 48m

Deal found 9/2

$454

Tue 10/2711:30 pm -

1 stop7h 05m

Tue 11/37:02 pm -

1 stop18h 45m

Deal found 9/3

$529

Sat 9/1911:02 pm -

1 stop7h 03m

Wed 9/239:13 am -

2 stops14h 50m

Deal found 9/4

$534

Wed 10/78:30 am -

1 stop8h 13m

Tue 10/137:18 pm -

2 stops21h 09m

Deal found 9/5

$559

Best flights from Oregon to Decatur
Discover carefully curated flight deals from Oregon to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Thu 12/1711:59 pm -

1 stop6h 44m

Sun 1/179:42 am -

1 stop7h 48m

Deal found 9/2

$454

Tue 10/2711:30 pm -

1 stop7h 05m

Tue 11/37:02 pm -

1 stop18h 45m

Deal found 9/4

$529

Sat 1/307:49 pm -

2 stops10h 57m

Tue 2/26:55 pm -

1 stop18h 36m

Deal found 9/3

$539

Sun 10/411:30 pm -

1 stop7h 05m

Fri 10/97:18 pm -

1 stop16h 13m

Deal found 9/2

$545

Last-minute flights from Oregon to Decatur
Discover last-minute flight deals from Oregon to Decatur. Data last updated September 7, 2026 and is based on user searches.

Thu 9/1711:02 pm -

1 stop7h 03m

Mon 9/219:12 am -

2 stops14h 51m

Deal found 9/2

$430

Sat 9/1911:02 pm -

1 stop7h 03m

Wed 9/239:13 am -

2 stops14h 50m

Deal found 9/4

$534

Sun 10/48:30 am -

1 stop8h 13m

Fri 10/97:18 pm -

3 stops26h 52m

Deal found 9/2

$560

Wed 10/78:30 am -

1 stop8h 13m

Tue 10/137:18 pm -

2 stops21h 09m

Deal found 9/5

$559

Tue 10/2711:30 pm -

1 stop7h 05m

Tue 11/37:02 pm -

1 stop18h 45m

Deal found 9/3

$529

Find flight deals from Oregon to Decatur

Round-trip from	$430 (United Airlines)
One-way from	$351 (United Airlines)

From Oregon to Decatur Arpt

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One-way flight from Oregon to Decatur Arpt

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Fri 10/9

7:29 pm-6:43 pm

2 stops21h 14m

Decatur Arpt

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$351

Quickest round-trip

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Thu 12/17

11:59 pm-8:43 am

1 stop6h 44m

Decatur Arpt

Sun 1/17

9:42 am-3:30 pm

1 stop7h 48m

$454

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Tue 10/27

11:30 pm-8:35 am

1 stop7h 05m

Decatur Arpt

Tue 11/3

7:02 pm-11:47 am

1 stop18h 45m

$529

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Sat 1/30

7:49 pm-8:46 am

2 stops10h 57m

Decatur Arpt

Tue 2/2

6:55 pm-11:31 am

1 stop18h 36m

$539

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Sun 10/4

11:30 pm-8:35 am

1 stop7h 05m

Decatur Arpt

Fri 10/9

7:18 pm-9:31 am

1 stop16h 13m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

Sorted by cheapest first

Best time to book a flight from Oregon to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Oregon with our price prediction graph.

PDX-DEC

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 Oregon to Decatur

USOR-DEC

PDX-DEC

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

Related info for your journey

What airport do you fly into for flights to Decatur from Oregon?
If you book a flight to Decatur from Oregon, you will be flying to Decatur Arpt, which is the city’s only airport. Decatur Arpt (DEC) is located 4.7 mi from the center of Decatur.
How long is the flight from Oregon to Decatur, Illinois?
A quick flight from Oregon to Decatur, Illinois can take about 6h 44m. United Airlines provides one of the quickest options available for as low as $454. The distance from Oregon to Decatur, Illinois is about 1743 mi.
Can I find deals for flights from Oregon to Decatur that include hotel bookings?
Yes. In addition to deals on Oregon to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Oregon to Decatur?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Decatur.
Can I find deals for business class flights from Oregon to Decatur?
Yes. Cheapflights offers flight deals from Oregon to Decatur by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$351+ Cheap flights from Oregon to Decatur, IL (DEC)

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Oregon to Decatur with Cheapflights

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Cheap flight deals from Oregon to Decatur

Cheapest flights from Oregon to DecaturExplore the most affordable flight options available from Oregon to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Explore the most affordable flight options available from Oregon to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Best flights from Oregon to DecaturDiscover carefully curated flight deals from Oregon to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Discover carefully curated flight deals from Oregon to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Last-minute flights from Oregon to DecaturDiscover last-minute flight deals from Oregon to Decatur. Data last updated September 7, 2026 and is based on user searches.

Discover last-minute flight deals from Oregon to Decatur. Data last updated September 7, 2026 and is based on user searches.

One-way flights from Oregon to DecaturSearch for one-way flight options from Oregon to Decatur. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.

Search for one-way flight options from Oregon to Decatur. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.

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Related info for your journey

What airport do you fly into for flights to Decatur from Oregon?

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

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

How can I find direct flights from Oregon to Decatur?

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

Traveling to a place near Decatur?

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Explore flights to Decatur departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.

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Cheapest flights from Oregon to Decatur
Explore the most affordable flight options available from Oregon to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Best flights from Oregon to Decatur
Discover carefully curated flight deals from Oregon to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Last-minute flights from Oregon to Decatur
Discover last-minute flight deals from Oregon to Decatur. Data last updated September 7, 2026 and is based on user searches.

One-way flights from Oregon to Decatur
Search for one-way flight options from Oregon to Decatur. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.