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$286+ Cheap flights from Decatur, IL to Portland (DEC - PDX)

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — PDX
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
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 March 11, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. 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 5/237:05 pm
DEC
-
PDX
1 stop6h 48m
United Airlines
Thu 5/2811:40 pm
PDX
-
DEC
1 stop7h 17m
United Airlines
Deal found 3/9$414
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/287:37 pm
DEC
-
PDX
1 stop24h 57m
United Airlines
Sat 5/211:55 pm
PDX
-
DEC
1 stop16h 03m
United Airlines
Deal found 3/8$466
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sun 5/109:42 am
DEC
-
PDX
1 stop14h 53m
United Airlines
Sun 5/2411:40 pm
PDX
-
DEC
1 stop7h 17m
United Airlines
Deal found 3/6$469

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$414
(United Airlines)

One-way from

$286
(United Airlines)
Provider with most accurate pricing for Decatur Arpt-Portland flight deals.
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Provider most trusted by Cheapflights users for Decatur Arpt-Portland flights.
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From Decatur Arpt to Portland
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One-way flight 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 March 11, 2026.
Use the filters below to find and compare flights from Decatur to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Sat 5/23

7:05 pm-11:53 pm

1 stop6h 48m

Portland

Thu 5/28

11:40 pm-8:57 am

1 stop7h 17m

$414

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Tue 4/28

7:37 pm-6:34 pm

1 stop24h 57m

Portland

Sat 5/2

11:55 pm-5:58 pm

1 stop16h 03m

$466
Cheapest one-way
Quickest one-way

DecaturPortland

DEC - PDX

DECPDX

Decatur Arpt

Sun 5/10

7:25 pm-10:35 pm

1 stop29h 10m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Decatur, Illinois-Portland flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, September is the cheapest month in which you can book a flight from Decatur, Illinois to Portland (average of $272). Flying from Decatur, Illinois to Portland in December is currently the most expensive (average of $449). 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 6h 48m. 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, September is the cheapest month in which you can book a flight from Decatur, Illinois to Portland (average of $272). Flying from Decatur, Illinois to Portland in December is currently the most expensive (average of $449). 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?

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