How do I get Price Alerts for flights from Portland to Decatur, Illinois?

Confirm your travel details to search for the latest offers for flights from Portland to Decatur, Illinois . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Portland to Decatur, Illinois with momondo?

By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

When did momondo last update prices for flights from Portland Airport to Decatur Arpt Airport?

Prices for flights from Portland Airport to Decatur Arpt Airport refresh daily.

How many operators does momondo search for flights from Portland Airport to Decatur Arpt Airport?

There is 1 operator available for flights from Portland Airport to Decatur Arpt Airport as of December 2025.

How old do you have to be to fly from Portland Airport to Decatur Arpt Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Decatur Arpt Airport.

What documentation or ID do you need to fly to Decatur Arpt Airport?

The necessary travel and health documents for your Decatur Arpt Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$404 Cheap Flights from Portland to Decatur in 2025/26

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Find the cheapest flights from Portland to Decatur

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 6:01 pm

PDX

DEC

9h 01m1 stop

9:49 am - 6:56 pm

DEC

PDX

11h 07m2 stops

$404United Airlines

Sat, Jan 17 - Wed, Jan 21

5:00 am - 6:01 pm

PDX

DEC

11h 01m2 stops

9:49 am - 9:49 pm

DEC

PDX

14h 00m2 stops

$409United Airlines

Sat, Jan 17 - Wed, Jan 21

7:00 am - 6:01 pm

PDX

DEC

9h 01m1 stop

9:49 am - 6:56 pm

DEC

PDX

11h 07m1 stop

$424United Airlines

Sat, Jan 17 - Wed, Jan 21

11:59 pm - 5:58 pm

PDX

DEC

15h 59m1 stop

7:15 pm - 12:33 pm

DEC

PDX

19h 18m2 stops

$616United Airlines

Sun, Mar 22 - Tue, Mar 24

11:59 pm - 5:58 pm

PDX

DEC

15h 59m1 stop

9:50 am - 10:45 pm

DEC

PDX

14h 55m1 stop

$661United Airlines

Sun, Mar 22 - Wed, Mar 25

11:59 pm - 5:58 pm

PDX

DEC

15h 59m1 stop

9:50 am - 11:04 pm

DEC

PDX

15h 14m2 stops

$671United Airlines

Sun, Mar 22 - Wed, Mar 25

7:49 pm - 8:52 am

PDX

DEC

11h 03m2 stops

9:50 am - 11:04 pm

DEC

PDX

15h 14m2 stops

$936United Airlines

Sun, Mar 22 - Wed, Mar 25

United Airlines flights from Portland to Decatur, Illinois

Our best United Airlines deals on Portland to Decatur, Illinois flight tickets

United Airlines

Jan 17

PDX7:00 amPortland

9h 01m

1 stop

DEC6:01 pmDecatur Arpt

Jan 21

DEC9:49 amDecatur Arpt

11h 07m

2 stops

PDX6:56 pmPortland

$404

Find similar

United Airlines

Jan 17

PDX5:00 amPortland

11h 01m

2 stops

DEC6:01 pmDecatur Arpt

Jan 21

DEC9:49 amDecatur Arpt

14h 00m

2 stops

PDX9:49 pmPortland

$409

Find similar

United Airlines

Jan 17

PDX7:00 amPortland

9h 01m

1 stop

DEC6:01 pmDecatur Arpt

Jan 21

DEC9:49 amDecatur Arpt

11h 07m

1 stop

PDX6:56 pmPortland

$424

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Portland to Decatur, Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sat 1/17

7:00 am-6:01 pm

1 stop9h 01m

Decatur Arpt

Wed 1/21

9:49 am-6:56 pm

2 stops11h 07m

$404

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sat 1/17

5:00 am-6:01 pm

2 stops11h 01m

Decatur Arpt

Wed 1/21

9:49 am-9:49 pm

2 stops14h 00m

$409

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sat 1/17

7:00 am-6:01 pm

1 stop9h 01m

Decatur Arpt

Wed 1/21

9:49 am-6:56 pm

1 stop11h 07m

$424

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sun 3/22

11:59 pm-5:58 pm

1 stop15h 59m

Decatur Arpt

Tue 3/24

7:15 pm-12:33 pm

2 stops19h 18m

$616

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sun 3/22

11:59 pm-5:58 pm

1 stop15h 59m

Decatur Arpt

Wed 3/25

9:50 am-10:45 pm

1 stop14h 55m

$661

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sun 3/22

11:59 pm-5:58 pm

1 stop15h 59m

Decatur Arpt

Wed 3/25

9:50 am-11:04 pm

2 stops15h 14m

$671

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sun 3/22

7:49 pm-8:52 am

2 stops11h 03m

Decatur Arpt

Wed 3/25

9:50 am-11:04 pm

2 stops15h 14m

$936

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Portland to Decatur, Illinois

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Decatur, Illinois according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Decatur, Illinois (PDX to DEC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Decatur, Illinois

Fastest flight time	7h 10m
Direct flights	None

The fastest flight from Portland to Decatur, Illinois takes 7h 10m

There are no direct flights from Portland to Decatur, Illinois. There are no popular flight routes from Portland to Decatur, Illinois.

Search flight deals

How far is Portland to Decatur Arpt by plane?
Portland and Decatur Arpt are 1742.3 mi apart from one another. Typically, this will take 7h 10m by plane in normal conditions.
When did momondo last update prices for flights from Portland Airport to Decatur Arpt Airport?
Prices for flights from Portland Airport to Decatur Arpt Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to Decatur Arpt Airport?
There is 1 operator available for flights from Portland Airport to Decatur Arpt Airport as of December 2025.
How old do you have to be to fly from Portland Airport to Decatur Arpt Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Decatur Arpt Airport.
What documentation or ID do you need to fly to Decatur Arpt Airport?
The necessary travel and health documents for your Decatur Arpt Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Portland to Decatur, Illinois?
Based on momondo bookings for flights between Portland and Decatur, Illinois, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Portland to Decatur, Illinois

Compare and see reviews for airlines that fly from Portland to Decatur, Illinois with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $374	Free Cancellation	Rating 7.4 9,099 reviews		Search United Airlines flights

How do I get Price Alerts for flights from Portland to Decatur, Illinois?
Confirm your travel details to search for the latest offers for flights from Portland to Decatur, Illinois. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Portland to Decatur, Illinois with momondo?
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Effingham

Mattoon

Forsyth

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Decatur?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Decatur from Portland.

Can I find flights from Portland to Decatur with flexible booking policies on momondo?

All flight searches from Portland to Decatur on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Decatur?

Once you have performed a search for Portland to Decatur flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to Decatur right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Decatur flights. All you need is a valid email address and we will do the rest; it is that quick and easy.