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Cheap flights from Washington to Decatur from $454

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Decatur departing on 9/22. 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
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
10:47 pm - 8:46 am
SEA
-
DEC
7h 59m
1 stop
United Airlines Logo
6:55 pm - 12:14 am
DEC
-
SEA
7h 19m
1 stop
$454United Airlines
Tue, Sep 22 - Sat, Sep 26
United Airlines Logo
10:59 pm - 8:46 am
PDX
-
DEC
7h 47m
1 stop
United Airlines Logo
6:55 pm - 12:02 am
DEC
-
PDX
7h 07m
1 stop
$454United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
5:22 pm - 8:46 am
SEA
-
DEC
13h 24m
2 stops
United Airlines Logo
6:55 pm - 12:14 am
DEC
-
SEA
7h 19m
1 stop
$464United Airlines
Tue, Sep 22 - Sat, Sep 26
United Airlines Logo
7:49 pm - 8:46 am
PDX
-
DEC
10h 57m
2 stops
United Airlines Logo
6:55 pm - 12:02 am
DEC
-
PDX
7h 07m
1 stop
$464United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
10:40 pm - 8:57 am
PDX
-
DEC
8h 17m
1 stop
United Airlines Logo
9:37 am - 8:54 pm
DEC
-
PDX
13h 17m
2 stops
$490United Airlines
Tue, Jun 9 - Mon, Jun 15
United Airlines Logo
7:00 am - 5:56 pm
PDX
-
DEC
8h 56m
1 stop
United Airlines Logo
9:37 am - 3:57 pm
DEC
-
PDX
8h 20m
1 stop
$492United Airlines
Fri, Jun 5 - Wed, Jun 10
United Airlines Logo
6:03 pm - 8:57 am
PDX
-
DEC
12h 54m
2 stops
United Airlines Logo
9:37 am - 8:54 pm
DEC
-
PDX
13h 17m
2 stops
$495United Airlines
Tue, Jun 9 - Mon, Jun 15
United Airlines Logo
10:40 pm - 8:57 am
PDX
-
DEC
8h 17m
1 stop
United Airlines Logo
6:45 pm - 3:57 pm
DEC
-
PDX
23h 12m
1 stop
$508United Airlines
Tue, Jun 9 - Mon, Jun 15
United Airlines Logo
10:40 pm - 8:57 am
PDX
-
DEC
8h 17m
1 stop
United Airlines Logo
9:37 am - 3:56 pm
DEC
-
PDX
8h 19m
1 stop
$514United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
11:40 pm - 8:57 am
PDX
-
DEC
7h 17m
1 stop
United Airlines Logo
6:45 pm - 9:47 am
DEC
-
PDX
17h 02m
2 stops
$518United Airlines
Sat, Jul 11 - Mon, Jul 13

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
Sep 22
SEA10:47 pmSeattle/Tacoma Intl
7h 59m
1 stop
DEC8:46 amDecatur Arpt
Sep 26
DEC6:55 pmDecatur Arpt
7h 19m
1 stop
SEA12:14 amSeattle/Tacoma Intl
$454
United Airlines
Sep 22
SEA5:22 pmSeattle/Tacoma Intl
13h 24m
2 stops
DEC8:46 amDecatur Arpt
Sep 26
DEC6:55 pmDecatur Arpt
7h 19m
1 stop
SEA12:14 amSeattle/Tacoma Intl
$464
United Airlines
Jun 9
PDX10:40 pmPortland
8h 17m
1 stop
DEC8:57 amDecatur Arpt
Jun 15
DEC9:37 amDecatur Arpt
13h 17m
2 stops
PDX8:54 pmPortland
$490

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 May 11, 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

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 9/22

10:47 pm-8:46 am

1 stop7h 59m

Decatur Arpt

Sat 9/26

6:55 pm-12:14 am

1 stop7h 19m

$454
Quickest round-trip

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Tue 10/27

10:59 pm-8:46 am

1 stop7h 47m

Decatur Arpt

Tue 11/3

6:55 pm-12:02 am

1 stop7h 07m

$454

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 9/22

5:22 pm-8:46 am

2 stops13h 24m

Decatur Arpt

Sat 9/26

6:55 pm-12:14 am

1 stop7h 19m

$464

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Tue 10/27

7:49 pm-8:46 am

2 stops10h 57m

Decatur Arpt

Tue 11/3

6:55 pm-12:02 am

1 stop7h 07m

$464

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Tue 6/9

10:40 pm-8:57 am

1 stop8h 17m

Decatur Arpt

Mon 6/15

9:37 am-8:54 pm

2 stops13h 17m

$490

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Fri 6/5

7:00 am-5:56 pm

1 stop8h 56m

Decatur Arpt

Wed 6/10

9:37 am-3:57 pm

1 stop8h 20m

$492

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Tue 6/9

6:03 pm-8:57 am

2 stops12h 54m

Decatur Arpt

Mon 6/15

9:37 am-8:54 pm

2 stops13h 17m

$495

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Tue 6/9

10:40 pm-8:57 am

1 stop8h 17m

Decatur Arpt

Mon 6/15

6:45 pm-3:57 pm

1 stop23h 12m

$508

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sat 5/23

10:40 pm-8:57 am

1 stop8h 17m

Decatur Arpt

Wed 5/27

9:37 am-3:56 pm

1 stop8h 19m

$514

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Sat 7/11

11:40 pm-8:57 am

1 stop7h 17m

Decatur Arpt

Mon 7/13

6:45 pm-9:47 am

2 stops17h 02m

$518

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 8h 11m on average. If you fly from Spokane (another popular airport in State of Washington) to Peoria, Illinois, then the average flight time is 18h 29m.

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

7h 17m

Direct flights

None
The fastest flight from State of Washington to Decatur, Illinois takes 7h 17m
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
9,699 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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