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Decatur

$226+ Cheap flights from Portland to Decatur, IL (PDX - DEC)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEC
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Portland to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Decatur (DEC). 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 September 16, 2025.

Round-trip from

$374
(United Airlines)

One-way from

$226
(United Airlines)
From Portland to Decatur Arpt
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One-way flight from Portland to Decatur Arpt
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Find flight deals from Portland to Decatur

Cheapest flights from Portland to Decatur
Explore the most affordable flight options available from Portland to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/2911:59 pmPDX - DEC
1 stop6h 49mUnited Airlines
Sat 11/17:08 pmDEC - PDX
1 stop19h 40mUnited Airlines
Deal found 9/15$434
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 9/2911:59 pmPDX - DEC
1 stop6h 52mUnited Airlines
Fri 10/39:38 amDEC - PDX
2 stops25h 52mUnited Airlines
Deal found 9/14$522
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/138:35 amPDX - DEC
1 stop22h 16mUnited Airlines
Wed 10/159:30 amDEC - PDX
2 stops15h 15mUnited Airlines
Deal found 9/15$523
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/111:59 pmPDX - DEC
1 stop6h 52mUnited Airlines
Sun 10/59:38 amDEC - PDX
1 stop28h 03mUnited Airlines
Deal found 9/16$550

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Decatur 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 September 16, 2025.
Use the filters below to find and compare flights from Portland to Decatur that are best for you.

Fly from

Portland

Fly to

Decatur

Route

Depart

Return

Price

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sat 3/7

11:55 pm-9:51 am

1 stop7h 56m

Decatur Arpt

Tue 3/10

3:20 pm-10:08 pm

1 stop8h 48m

$374

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Wed 10/29

11:59 pm-8:48 am

1 stop6h 49m

Decatur Arpt

Sat 11/1

7:08 pm-12:48 pm

1 stop19h 40m

$434

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Tue 10/7

10:30 pm-6:04 pm

1 stop17h 34m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Best time to book a flight from Portland to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Portland 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.

Reviews of airlines servicing Decatur

Get insights into the airlines that provide service to Decatur. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Decatur. Reviews last updated September 16, 2025.
Get a feel of what it's like to fly with United Airlines from Portland to Decatur by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Portland to Decatur. 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 Portland to Decatur, Illinois?

    Airlines like United Airlines fly from Portland to Decatur, Illinois in about 7h 56m. The time it takes to get you to your destination can typically vary by up to . The distance from Portland to Decatur, Illinois is about 1743 mi.

  • What is the cheapest airline to fly from Portland to Decatur, Illinois round-trip?

    Our cheapest airline available from Portland to Decatur, Illinois is United Airlines. Our recent data shows that you can find tickets from as low as $374 on this airline.

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

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

  • How can I find direct flights from Portland to Decatur?

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

See more FAQs

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Mattoon
Effingham

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Alternative routes for Portland to Decatur

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Top airline flying from Portland to Decatur

Discover the top airline that operate flights from Portland to Decatur. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$374Average$494FlexibilityNo cancel feeOn-time69%

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