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$414+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — PDX
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Decatur to Portland

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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/259:44 amDEC - PDX
2 stops9h 47mUnited Airlines
Mon 12/2911:55 pmPDX - DEC
1 stop7h 10mUnited Airlines
Deal found 12/10$498
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/247:09 pmDEC - PDX
2 stops29h 50mUnited Airlines
Mon 12/2911:55 pmPDX - DEC
1 stop7h 10mUnited Airlines
Deal found 12/10$530
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/197:09 pmDEC - PDX
1 stop25h 52mUnited Airlines
Thu 1/17:10 amPDX - DEC
1 stop23h 55mUnited Airlines
Deal found 12/10$669
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/219:44 amDEC - PDX
2 stops15h 15mUnited Airlines
Fri 1/211:55 pmPDX - DEC
1 stop16h 04mUnited Airlines
Deal found 12/10$784
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/279:44 amDEC - PDX
1 stop14h 56mUnited Airlines
Wed 12/312:35 pmPDX - DEC
2 stops25h 24mUnited Airlines
Deal found 12/11$805

Find flight deals from Decatur to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Decatur (DEC) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$414
(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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Cheapflights Fare Finder

 
Customize your flight search to find flights from Decatur to Portland 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 12, 2025.
Use the filters below to find and compare flights from Decatur to Portland that are best for you.

Fly from

Decatur

Fly to

Portland

Route

Depart

Return

Price

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Fri 2/20

9:50 am-11:55 am

1 stop28h 05m

Portland

Tue 2/24

11:59 pm-8:52 am

1 stop6h 53m

$414

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Thu 12/25

9:44 am-5:31 pm

2 stops9h 47m

Portland

Mon 12/29

11:55 pm-9:05 am

1 stop7h 10m

$498

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Wed 12/24

7:09 pm-10:59 pm

2 stops29h 50m

Portland

Mon 12/29

11:55 pm-9:05 am

1 stop7h 10m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Compare providers for flights from Decatur to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Decatur to Portland in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Decatur, Illinois-Portland flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Decatur, Illinois-Portland flight deals on Cheapflights vs. eDreams >95% 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 eDreams the most. eDreams 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.
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 Portland

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

Currently, April is the cheapest month in which you can book a flight from Decatur, Illinois to Portland (average of $247). Flying from Decatur, Illinois to Portland 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 Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like United Airlines fly from Decatur, Illinois to Portland in about 28h 05m. 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.

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

    Currently, April is the cheapest month in which you can book a flight from Decatur, Illinois to Portland (average of $247). Flying from Decatur, Illinois to Portland 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
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Hillsboro
Troutdale
Cannon Beach
Long Beach
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Tigard
The Dalles
Depoe Bay
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Gresham

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