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Decatur

$454+ Cheap flights from Portland to Decatur, IL (PDX - 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEC
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/20. 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 2/47:00 am
PDX
-
DEC
1 stop9h 01m
United Airlines
Sun 2/89:49 am
DEC
-
PDX
2 stops15h 17m
United Airlines
Deal found 1/20$454
This United Airlines deal was found by Cheapflights users on 1/20. 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 10/287:11 am
PDX
-
DEC
1 stop8h 40m
United Airlines
Sat 10/316:55 pm
DEC
-
PDX
2 stops17h 45m
United Airlines
Deal found 1/20$459
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/1611:59 pm
PDX
-
DEC
1 stop15h 54m
United Airlines
Thu 3/199:50 am
DEC
-
PDX
1 stop11h 24m
United Airlines
Deal found 1/21$582

Find 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$425
(United Airlines)
Provider with most accurate pricing for Portland-Decatur Arpt flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Decatur Arpt flights.
Search Deals
From Portland to Decatur Arpt
Search Deals

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 January 21, 2026.
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

Wed 2/4

7:00 am-6:01 pm

1 stop9h 01m

Decatur Arpt

Sun 2/8

9:49 am-11:06 pm

2 stops15h 17m

$454

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Mon 3/16

11:59 pm-5:53 pm

1 stop15h 54m

Decatur Arpt

Thu 3/19

9:50 am-7:14 pm

1 stop11h 24m

$582

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sat 1/31

10:47 am-9:05 am

1 stop20h 18m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Compare providers for flights from Portland to Decatur

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 Portland to Decatur in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Portland-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Decatur, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Decatur, Illinois 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 Portland-Decatur, Illinois 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 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Decatur

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

Currently, April is the cheapest month in which you can book a flight from Portland to Decatur, Illinois (average of $228). Flying from Portland to Decatur, Illinois in March is currently the most expensive (average of $958). 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.

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 January 21, 2026.
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
9,191 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,191 reviews
United Airlines
7.4
Good
9,191 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 6h 53m. 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.

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

    Currently, April is the cheapest month in which you can book a flight from Portland to Decatur, Illinois (average of $228). Flying from Portland to Decatur, Illinois in March is currently the most expensive (average of $958). 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 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$374Average$445FlexibilityNo cancel feeOn-time69%

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