$232 Cheap Flights from Decatur (DEC) to Portland (PDX)

View $232 flight on Sat, Aug 30, 2025Opens in a new window

Popular airlines from Decatur, IL (DEC) to Portland International Airport (PDX)

Cheap Flights from Decatur to Portland (DEC-PDX)

Prices were available within the past 7 days and start at $232 for one-way flights and $290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$290 Roundtrip, found 16 hours ago
$290
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $290 found 16 hours ago
United
Tue, Sep 9 - Tue, Sep 23
DEC
Decatur
PDX
Portland
$294 Roundtrip, found 16 hours ago
$294
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 9 from Decatur to Portland, returning Tue, Sep 23, priced at $294 found 16 hours ago
United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$299 Roundtrip, found 16 hours ago
$299
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $299 found 16 hours ago
United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$305 Roundtrip, found 16 hours ago
$305
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $305 found 16 hours ago
United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$314 Roundtrip, found 16 hours ago
$314
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $314 found 16 hours ago
United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$320 Roundtrip, found 16 hours ago
$320
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $320 found 16 hours ago
United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$329 Roundtrip, found 16 hours ago
$329
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $329 found 16 hours ago
United
Wed, Oct 15 - Sat, Oct 18
DEC
Decatur
PDX
Portland
$368 Roundtrip, found 6 days ago
$368
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 15 from Decatur to Portland, returning Sat, Oct 18, priced at $368 found 6 days ago
United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$369 Roundtrip, found 16 hours ago
$369
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $369 found 16 hours ago
United
Tue, Sep 16 - Tue, Sep 30
DEC
Decatur
PDX
Portland
$373 Roundtrip, found 16 hours ago
$373
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 16 from Decatur to Portland, returning Tue, Sep 30, priced at $373 found 16 hours ago

Alternative airports near Portland

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Portland Intl. PDX. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $515
PDX
Portland Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $515
Flights from Decatur (DEC) to Portland (PDX)
Origin airport
Decatur
Destination airport
Portland Intl.
Airlines serving
United
Roundtrip price
$289
Distance
1743 mi

Decatur to Portland Flights

The cheapest times to fly from Decatur to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Decatur to Portland are during the month of September. You can find some of the cheapest flights from Decatur to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Decatur to Portland

Sunday is one of the best days to book for cheap flights from Decatur to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Decatur to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Decatur to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $232 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Decatur to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Decatur to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Decatur Airport (DEC) to Portland Intl. Airport (PDX) cost?
Snag a cheap one-way flight from $232 or cheap return flight from $290 from Decatur Airport (DEC) to Portland Intl. Airport (PDX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Decatur Airport (DEC) to Portland Intl. Airport (PDX)?
September is the most affordable month to fly from DEC to PDX. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Decatur Airport (DEC) to Portland Intl. Airport (PDX)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest DEC to PDX flight.
How many flights per day from Decatur Airport (DEC) to Portland Intl. Airport (PDX)?
You'll need to catch a flight with a layover when traveling from Decatur Airport (DEC) to Portland Intl. Airport (PDX). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from DEC to PDX?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Decatur Airport (DEC) to Portland Intl. Airport (PDX)?
Book a flight from Decatur Airport (DEC) to Portland Intl. Airport (PDX) that leaves before 3 PM to reduce the likelihood of delays. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Decatur Airport (DEC) to Portland Intl. Airport (PDX) last-minute?
Last-minute bookings from DEC to PDX are typically more expensive. For the lowest rates, start looking for flights early. That said, if you can play around with your travel dates, it's possible to land a cheap fare just before your departure.
Is it cheaper to book a DEC to PDX flight and hotel package?
Compared with arranging flights and hotels separately, booking a DEC to PDX flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place takes the hassle out of planning your trip. Simply pick your flights and choose from our extensive range of stays, then personalize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Decatur Airport (DEC) to Portland Intl. Airport (PDX)?
Usually, it's possible to reschedule or cancel your DEC to PDX flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.