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

Airlines like United Airlines fly from Decatur, Illinois to Portland in about 15h 17m. The time it takes to get you to your destination can typically vary by up to . The distance from Decatur, Illinois to Portland is about 1743 mi.

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

If weather is an important factor for your trip to Portland, 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).

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

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

Most accurate provider : When it comes to deals on Decatur, Illinois-Portland flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Decatur, Illinois-Portland flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Decatur, Illinois-Portland flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Decatur, Illinois-Portland flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Decatur, Illinois-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Decatur to Portland?

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

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

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

$548+ Cheap Flights from Decatur, IL to Portland

Q: E

Most trusted provider : When it comes to deals on Decatur, Illinois-Portland flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Decatur, Illinois-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Q: Can I find deals for flights from Decatur to Portland that include hotel bookings?

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

Q: How can I find direct flights from Decatur to Portland?

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

Q: Can I find deals for business class flights from Decatur to Portland?

Yes. Cheapflights offers flight deals from Decatur to Portland 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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Cheap flight deals from Decatur to Portland

Cheapest

Best

Last-minute

Cheapest flights from Decatur to Portland
Explore the most affordable flight options available from Decatur to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.

Thu 11/129:10 am -

1 stop15h 17m

Mon 11/1611:30 pm -

1 stop16h 40m

Deal found 10/23

$548

Thu 11/59:10 am -

1 stop8h 13m

Thu 11/1211:30 pm -

1 stop6h 39m

Deal found 10/21

$549

Fri 11/69:10 am -

1 stop8h 13m

Tue 11/102:34 pm -

1 stop25h 36m

Deal found 10/22

$566

Mon 12/78:31 am -

1 stop29h 10m

Wed 12/92:26 pm -

1 stop25h 44m

Deal found 10/22

$580

Wed 11/49:10 am -

1 stop8h 13m

Sat 11/711:30 pm -

1 stop6h 39m

Deal found 10/21

$584

Best flights from Decatur to Portland
Discover carefully curated flight deals from Decatur to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Thu 11/129:10 am -

1 stop15h 17m

Mon 11/1611:30 pm -

1 stop16h 40m

Deal found 10/23

$548

Thu 11/59:10 am -

1 stop8h 13m

Thu 11/1211:30 pm -

1 stop6h 39m

Deal found 10/21

$549

Fri 11/69:10 am -

2 stops13h 52m

Tue 11/109:00 am -

2 stops21h 09m

Deal found 10/22

$577

Sat 1/307:00 pm -

1 stop25h 59m

Tue 2/27:10 am -

1 stop8h 56m

Deal found 10/24

$579

Last-minute flights from Decatur to Portland
Discover last-minute flight deals from Decatur to Portland. Data last updated October 25, 2026 and is based on user searches.

Wed 11/49:10 am -

1 stop8h 13m

Sat 11/711:30 pm -

1 stop6h 39m

Deal found 10/21

$584

Thu 11/59:10 am -

1 stop8h 13m

Thu 11/1211:30 pm -

1 stop6h 39m

Deal found 10/21

$549

Fri 11/69:10 am -

1 stop8h 13m

Tue 11/102:34 pm -

1 stop25h 36m

Deal found 10/22

$566

Thu 11/129:10 am -

1 stop15h 17m

Mon 11/1611:30 pm -

1 stop16h 40m

Deal found 10/23

$548

Find flight deals from Decatur to Portland

Most accurate provider	Expedia 1 star
Most trusted provider	Expedia 3 stars
Round-trip from	$548 (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.

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From Decatur Arpt to Portland

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Thu 11/12

9:10 am-10:27 pm

1 stop15h 17m

Portland

Mon 11/16

11:30 pm-6:10 pm

1 stop16h 40m

$548

Quickest round-trip

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Thu 11/5

9:10 am-3:23 pm

1 stop8h 13m

Portland

Thu 11/12

11:30 pm-8:09 am

1 stop6h 39m

$549

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Fri 11/6

9:10 am-9:02 pm

2 stops13h 52m

Portland

Tue 11/10

9:00 am-8:09 am

2 stops21h 09m

$577

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Sat 1/30

7:00 pm-6:59 pm

1 stop25h 59m

Portland

Tue 2/2

7:10 am-6:06 pm

1 stop8h 56m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Sorted by cheapest first

Most accurate provider: When it comes to deals on Decatur, Illinois-Portland flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Decatur, Illinois-Portland flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Decatur, Illinois-Portland flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Decatur, Illinois-Portland flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Decatur, Illinois-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Decatur to Portland

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

DEC-PDX

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.

Related info for your journey

How long is the flight from Decatur, Illinois to Portland?
Airlines like United Airlines fly from Decatur, Illinois to Portland in about 15h 17m. The time it takes to get you to your destination can typically vary by up to . The distance from Decatur, Illinois to Portland is about 1743 mi.
Can I find deals for flights from Decatur to Portland that include hotel bookings?
Yes. In addition to deals on Decatur to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Decatur to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Decatur to Portland.
Can I find deals for business class flights from Decatur to Portland?
Yes. Cheapflights offers flight deals from Decatur to Portland 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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$548+ Cheap flights from Decatur, IL to Portland (DEC - PDX)

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Decatur to Portland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Decatur to Portland

Cheapest flights from Decatur to PortlandExplore the most affordable flight options available from Decatur to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.

Explore the most affordable flight options available from Decatur to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.

Best flights from Decatur to PortlandDiscover carefully curated flight deals from Decatur to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Discover carefully curated flight deals from Decatur to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Last-minute flights from Decatur to PortlandDiscover last-minute flight deals from Decatur to Portland. Data last updated October 25, 2026 and is based on user searches.

Discover last-minute flight deals from Decatur to Portland. Data last updated October 25, 2026 and is based on user searches.

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Use the filters below to find and compare flights from Decatur to Portland that are best for you.

Best time to book a flight from Decatur to Portland

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

Related info for your journey

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

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

How can I find direct flights from Decatur to Portland?

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

Traveling to a place near Portland?

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Decatur and Portland flights

Browse other Decatur and Portland flight options. Last updated on October 25, 2026.

Other flights from Decatur

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Cheapest flights from Decatur to Portland
Explore the most affordable flight options available from Decatur to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.

Best flights from Decatur to Portland
Discover carefully curated flight deals from Decatur to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Last-minute flights from Decatur to Portland
Discover last-minute flight deals from Decatur to Portland. Data last updated October 25, 2026 and is based on user searches.