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Cheap flights from Washington to Decatur from $320

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Decatur departing on 10/8. 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

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Find the cheapest flights from Washington to Decatur

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:02 am - 5:59 pmPDX  Portland-DEC Decatur Arpt
8h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
7:20 pm - 9:29 amDEC  Decatur Arpt-PDX Portland
16h 09m1 stop Chicago O'Hare Intl
$473United Airlines
Fri, Sep 4 - Tue, Sep 8
United Airlines Logo
7:00 am - 6:10 pmPDX  Portland-DEC Decatur Arpt
9h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
7:02 pm - 7:12 pmDEC  Decatur Arpt-PDX Portland
26h 10m1 stop Chicago O'Hare Intl
$473United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
7:00 am - 6:10 pmPDX  Portland-DEC Decatur Arpt
9h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
7:02 pm - 9:02 pmDEC  Decatur Arpt-PDX Portland
28h 00m2 stops Chicago O'Hare Intl San Francisco
$479United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
8:15 am - 5:59 pmPDX  Portland-DEC Decatur Arpt
7h 44m1 stop Chicago O'Hare Intl
United Airlines Logo
7:20 pm - 12:00 pmDEC  Decatur Arpt-PDX Portland
18h 40m2 stops Chicago O'Hare Intl San Francisco
$483United Airlines
Fri, Sep 4 - Tue, Sep 8
United Airlines Logo
7:26 pm - 8:35 amPDX  Portland-DEC Decatur Arpt
11h 09m2 stops San Francisco Chicago O'Hare Intl
United Airlines Logo
7:02 pm - 6:20 pmDEC  Decatur Arpt-PDX Portland
25h 18m2 stops Chicago O'Hare Intl San Francisco
$488United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
7:00 am - 6:10 pmPDX  Portland-DEC Decatur Arpt
9h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
7:02 pm - 7:12 pmDEC  Decatur Arpt-PDX Portland
26h 10m1 stop Chicago O'Hare Intl
$529United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
7:00 am - 6:10 pmSEA  Seattle/Tacoma Intl-DEC Decatur Arpt
9h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
6:57 pm - 10:59 pmDEC  Decatur Arpt-SEA Seattle/Tacoma Intl
30h 02m1 stop Chicago O'Hare Intl
$555United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
10:56 pm - 8:35 amSEA  Seattle/Tacoma Intl-DEC Decatur Arpt
7h 39m1 stop Chicago O'Hare Intl
United Airlines Logo
6:57 pm - 12:19 pmDEC  Decatur Arpt-SEA Seattle/Tacoma Intl
19h 22m1 stop Chicago O'Hare Intl
$555United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
10:40 pm - 8:46 amSEA  Seattle/Tacoma Intl-DEC Decatur Arpt
8h 06m1 stop Chicago O'Hare Intl
United Airlines Logo
6:55 pm - 11:40 amDEC  Decatur Arpt-SEA Seattle/Tacoma Intl
18h 45m1 stop Chicago O'Hare Intl
$555United Airlines
Wed, Feb 3 - Sat, Feb 6
United Airlines Logo
7:00 am - 5:51 pmSEA  Seattle/Tacoma Intl-DEC Decatur Arpt
8h 51m1 stop Chicago O'Hare Intl
United Airlines Logo
6:55 pm - 8:10 pmDEC  Decatur Arpt-SEA Seattle/Tacoma Intl
27h 15m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
$561United Airlines
Wed, Feb 3 - Sat, Feb 6

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United Airlines flights from State of Washington to Decatur, Illinois

Our best United Airlines deals on State of Washington to Decatur, Illinois flight tickets
United Airlines
Oct 27
PDX7:00 amPortland
9h 10m
1 stop
DEC6:10 pmDecatur Arpt
Nov 3
DEC7:02 pmDecatur Arpt
26h 10m
1 stop
PDX7:12 pmPortland
$473
United Airlines
Oct 27
PDX7:00 amPortland
9h 10m
1 stop
DEC6:10 pmDecatur Arpt
Nov 3
DEC7:02 pmDecatur Arpt
28h 00m
2 stops
PDX9:02 pmPortland
$479
United Airlines
Sep 4
PDX8:15 amPortland
7h 44m
1 stop
DEC5:59 pmDecatur Arpt
Sep 8
DEC7:20 pmDecatur Arpt
18h 40m
2 stops
PDX12:00 pmPortland
$483

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Decatur, Illinois 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 13, 2026.
Use the filters below to find and compare flights from Washington to Decatur, Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Fri 9/4

7:02 am-5:59 pm

1 stop8h 57m

Decatur Arpt

Tue 9/8

7:20 pm-9:29 am

1 stop16h 09m

$473

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Tue 10/27

7:00 am-6:10 pm

1 stop9h 10m

Decatur Arpt

Tue 11/3

7:02 pm-7:12 pm

1 stop26h 10m

$473

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Tue 10/27

7:00 am-6:10 pm

1 stop9h 10m

Decatur Arpt

Tue 11/3

7:02 pm-9:02 pm

2 stops28h 00m

$479

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Fri 9/4

8:15 am-5:59 pm

1 stop7h 44m

Decatur Arpt

Tue 9/8

7:20 pm-12:00 pm

2 stops18h 40m

$483

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Tue 10/27

7:26 pm-8:35 am

2 stops11h 09m

Decatur Arpt

Tue 11/3

7:02 pm-6:20 pm

2 stops25h 18m

$488

PortlandDecatur

PDX Portland - DEC Decatur Arpt

PDXDEC

Portland

Tue 10/27

7:00 am-6:10 pm

1 stop9h 10m

Decatur Arpt

Tue 11/3

7:02 pm-7:12 pm

1 stop26h 10m

$529

SeattleDecatur

SEA Seattle/Tacoma Intl - DEC Decatur Arpt

SEADEC

Seattle/Tacoma Intl

Tue 11/10

7:00 am-6:10 pm

1 stop9h 10m

Decatur Arpt

Sat 11/14

6:57 pm-10:59 pm

1 stop30h 02m

$555

SeattleDecatur

SEA Seattle/Tacoma Intl - DEC Decatur Arpt

SEADEC

Seattle/Tacoma Intl

Tue 11/3

10:56 pm-8:35 am

1 stop7h 39m

Decatur Arpt

Sat 11/7

6:57 pm-12:19 pm

1 stop19h 22m

$555

SeattleDecatur

SEA Seattle/Tacoma Intl - DEC Decatur Arpt

SEADEC

Seattle/Tacoma Intl

Wed 2/3

10:40 pm-8:46 am

1 stop8h 06m

Decatur Arpt

Sat 2/6

6:55 pm-11:40 am

1 stop18h 45m

$555

SeattleDecatur

SEA Seattle/Tacoma Intl - DEC Decatur Arpt

SEADEC

Seattle/Tacoma Intl

Wed 2/3

7:00 am-5:51 pm

1 stop8h 51m

Decatur Arpt

Sat 2/6

6:55 pm-8:10 pm

2 stops27h 15m

$561

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Decatur from

How to get the cheapest flight ticket from State of Washington to Decatur, Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Decatur, Illinois?

The flight from State of Washington to Decatur, Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Seattle (a popular airport in State of Washington) to Peoria, Illinois (the most popular airport in Decatur, Illinois), then the flight time is 6h 06m on average. If you fly from Spokane (another popular airport in State of Washington) to Peoria, Illinois, then the average flight time is 13h 46m.

Cheap State of Washington to Decatur, Illinois flight deals and tips

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

Fastest flight time

6h 07m

Direct flights

None
The fastest flight from State of Washington to Decatur, Illinois takes 6h 07m
There are no direct flights from State of Washington to Decatur, Illinois. There are no popular flight routes from State of Washington to Decatur, Illinois.
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Frequently asked questions about flying from Washington to Decatur, Illinois

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington 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.

Best airlines flying from State of Washington to Decatur, Illinois

Compare and see reviews for airlines that fly from State of Washington to Decatur, Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $304Free CancellationRating
7.4
10,114 reviews
Search United Airlines flights

Traveling to a place near Decatur?

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

Why use momondo?

Why should I use momondo to find a flight deal from Washington 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 Washington.

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

Yes. momondo allows you to filter the results for Washington to Decatur flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Decatur from Washington.

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

If you are simply researching potential flights to Decatur, momondo offers a useful price alert feature which will track prices for flights to Decatur from Washington and alert you when they change.

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