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Cheap flights from Decatur, Illinois to Portland from $515

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Decatur, Illinois to Portland departing on 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Decatur, Illinois to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:57 pm - 11:47 amDEC  Decatur Arpt-PDX Portland
18h 50m1 stop Chicago O'Hare Intl
United Airlines Logo
7:00 am - 5:55 pmPDX  Portland-DEC Decatur Arpt
8h 55m1 stop Chicago O'Hare Intl
$515United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
6:57 pm - 9:02 pmDEC  Decatur Arpt-PDX Portland
28h 05m2 stops Chicago O'Hare Intl San Francisco
United Airlines Logo
7:00 am - 5:55 pmPDX  Portland-DEC Decatur Arpt
8h 55m1 stop Chicago O'Hare Intl
$521United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
6:57 pm - 8:15 pmDEC  Decatur Arpt-PDX Portland
27h 18m3 stops Chicago O'Hare Intl Cleveland Hopkins Intl Washington, D.C. Dulles Intl
United Airlines Logo
7:00 am - 5:55 pmPDX  Portland-DEC Decatur Arpt
8h 55m1 stop Chicago O'Hare Intl
$530United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
6:57 pm - 3:20 pmDEC  Decatur Arpt-PDX Portland
22h 23m1 stop Chicago O'Hare Intl
United Airlines Logo
7:00 am - 5:55 pmPDX  Portland-DEC Decatur Arpt
8h 55m1 stop Chicago O'Hare Intl
$561United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
6:57 pm - 2:37 pmDEC  Decatur Arpt-PDX Portland
21h 40m2 stops Chicago O'Hare Intl San Francisco
United Airlines Logo
7:00 am - 5:55 pmPDX  Portland-DEC Decatur Arpt
8h 55m1 stop Chicago O'Hare Intl
$564United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
6:57 pm - 6:20 pmDEC  Decatur Arpt-PDX Portland
25h 23m3 stops Chicago O'Hare Intl Denver Intl San Francisco
United Airlines Logo
7:00 am - 5:55 pmPDX  Portland-DEC Decatur Arpt
8h 55m1 stop Chicago O'Hare Intl
$572United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
6:57 pm - 8:15 pmDEC  Decatur Arpt-PDX Portland
27h 18m3 stops Chicago O'Hare Intl Cleveland Hopkins Intl Washington, D.C. Dulles Intl
United Airlines Logo
7:00 am - 5:55 pmPDX  Portland-DEC Decatur Arpt
8h 55m1 stop Chicago O'Hare Intl
$576United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
7:20 pm - 10:52 pmDEC  Decatur Arpt-PDX Portland
29h 32m1 stop Chicago O'Hare Intl
United Airlines Logo
11:02 pm - 6:44 pmPDX  Portland-DEC Decatur Arpt
17h 42m1 stop Chicago O'Hare Intl
$599United Airlines
Tue, Sep 1 - Mon, Sep 7
United Airlines Logo
7:20 pm - 9:32 amDEC  Decatur Arpt-PDX Portland
16h 12m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
11:02 pm - 6:44 pmPDX  Portland-DEC Decatur Arpt
17h 42m1 stop Chicago O'Hare Intl
$609United Airlines
Tue, Sep 1 - Mon, Sep 7
United Airlines Logo
7:20 pm - 6:53 pmDEC  Decatur Arpt-PDX Portland
25h 33m1 stop Chicago O'Hare Intl
United Airlines Logo
7:16 am - 5:59 pmPDX  Portland-DEC Decatur Arpt
8h 43m1 stop Chicago O'Hare Intl
$620United Airlines
Tue, Aug 18 - Sat, Aug 22

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United Airlines flights from Decatur, Illinois to Portland

Our best United Airlines deals on Decatur, Illinois to Portland flight tickets
United Airlines
Nov 10
DEC6:57 pmDecatur Arpt
18h 50m
1 stop
PDX11:47 amPortland
Nov 14
PDX7:00 amPortland
8h 55m
1 stop
DEC5:55 pmDecatur Arpt
$515
United Airlines
Nov 10
DEC6:57 pmDecatur Arpt
28h 05m
2 stops
PDX9:02 pmPortland
Nov 14
PDX7:00 amPortland
8h 55m
1 stop
DEC5:55 pmDecatur Arpt
$521
United Airlines
Nov 10
DEC6:57 pmDecatur Arpt
27h 18m
3 stops
PDX8:15 pmPortland
Nov 14
PDX7:00 amPortland
8h 55m
1 stop
DEC5:55 pmDecatur Arpt
$530

momondo Fare Finder

 
Customize your flight search to find flights from Decatur, Illinois 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, momondo users made 832,500 searches. Data last updated August 6, 2026.
Use the filters below to find and compare flights from Decatur, Illinois to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-11:47 am

1 stop18h 50m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$515

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-9:02 pm

2 stops28h 05m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$521

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-8:15 pm

3 stops27h 18m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$530

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-3:20 pm

1 stop22h 23m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$561

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-2:37 pm

2 stops21h 40m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$564

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-6:20 pm

3 stops25h 23m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$572

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 11/10

6:57 pm-8:15 pm

3 stops27h 18m

Portland

Sat 11/14

7:00 am-5:55 pm

1 stop8h 55m

$576

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 9/1

7:20 pm-10:52 pm

1 stop29h 32m

Portland

Mon 9/7

11:02 pm-6:44 pm

1 stop17h 42m

$599

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 9/1

7:20 pm-9:32 am

2 stops16h 12m

Portland

Mon 9/7

11:02 pm-6:44 pm

1 stop17h 42m

$609

DecaturPortland

DEC Decatur Arpt - PDX Portland

DECPDX

Decatur Arpt

Tue 8/18

7:20 pm-6:53 pm

1 stop25h 33m

Portland

Sat 8/22

7:16 am-5:59 pm

1 stop8h 43m

$620

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Decatur, Illinois to Portland

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

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

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

Fastest flight time

16h 13m

Direct flights

None
The fastest flight from Decatur, Illinois to Portland takes 16h 13m
There are no direct flights from Decatur, Illinois to Portland. There are no popular flight routes from Decatur, Illinois to Portland.
Search flight deals

Frequently asked questions about flying from Decatur, Illinois to Portland

  • How far is Decatur Arpt to Portland by plane?

    The distance between Decatur Arpt and Portland is about 1742.3 mi. By plane, this route typically takes 16h 13m.

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

    Prices for flights from Decatur Arpt Airport to Portland Airport are updated daily.

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

  • What documentation or ID do you need to fly to Portland Airport?

    The necessary travel and health documents for your Portland 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.

Frequently asked questions about flying from Decatur, Illinois to Portland

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

    Confirm your travel details to search for the latest offers for flights from Decatur, Illinois to Portland. 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 Decatur, Illinois to Portland with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • 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.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Vancouver
Cannon Beach
Salem
Astoria
Long Beach
Beaverton
Rockaway Beach
Hillsboro
Tigard
Depoe Bay
Longview
Hood River
Newberg
Clackamas
Troutdale
Gresham
Kelso
Wilsonville

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Decatur to Portland. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search for Decatur to Portland 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 Decatur to Portland right now. Can momondo alert me if prices change?

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

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