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Cheap flights from Washington to Decatur from $306

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 8/18. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Decatur

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:00 pm - 8:05 am
SEA
-
DEC
7h 05m
1 stop
United Airlines Logo
9:12 am - 4:06 pm
DEC
-
SEA
8h 54m
1 stop
$444United Airlines
Sat, Sep 12 - Fri, Oct 2
United Airlines Logo
11:00 pm - 8:05 am
SEA
-
DEC
7h 05m
1 stop
United Airlines Logo
9:12 am - 8:37 pm
DEC
-
SEA
13h 25m
2 stops
$450United Airlines
Sat, Sep 12 - Fri, Oct 2
United Airlines Logo
7:00 am - 6:04 pm
SEA
-
DEC
9h 04m
1 stop
United Airlines Logo
9:12 am - 9:59 pm
DEC
-
SEA
14h 47m
2 stops
$454United Airlines
Sat, Sep 12 - Thu, Oct 1
United Airlines Logo
5:20 pm - 8:05 am
SEA
-
DEC
12h 45m
2 stops
United Airlines Logo
9:12 am - 9:55 pm
DEC
-
SEA
14h 43m
2 stops
$459United Airlines
Sat, Sep 12 - Wed, Sep 30
United Airlines Logo
11:00 pm - 8:05 am
SEA
-
DEC
7h 05m
1 stop
United Airlines Logo
7:18 pm - 6:52 pm
DEC
-
SEA
25h 34m
1 stop
$477United Airlines
Sat, Sep 12 - Tue, Sep 29
United Airlines Logo
11:00 pm - 8:05 am
SEA
-
DEC
7h 05m
1 stop
United Airlines Logo
7:18 pm - 2:53 pm
DEC
-
SEA
21h 35m
2 stops
$483United Airlines
Sat, Sep 12 - Tue, Sep 29
United Airlines Logo
5:13 pm - 6:04 pm
SEA
-
DEC
22h 51m
1 stop
United Airlines Logo
9:12 am - 4:06 pm
DEC
-
SEA
8h 54m
1 stop
$490United Airlines
Mon, Sep 14 - Wed, Sep 30
United Airlines Logo
7:05 pm - 8:57 am
SEA
-
DEC
11h 52m
2 stops
United Airlines Logo
7:20 pm - 4:14 pm
DEC
-
SEA
22h 54m
2 stops
$492United Airlines
Wed, Jul 29 - Tue, Sep 15
United Airlines Logo
5:13 pm - 6:04 pm
SEA
-
DEC
22h 51m
1 stop
United Airlines Logo
9:12 am - 8:37 pm
DEC
-
SEA
13h 25m
2 stops
$496United Airlines
Mon, Sep 14 - Wed, Sep 30
United Airlines Logo
11:59 pm - 6:04 pm
SEA
-
DEC
16h 05m
2 stops
United Airlines Logo
9:12 am - 4:06 pm
DEC
-
SEA
8h 54m
1 stop
$500United Airlines
Mon, Sep 14 - Thu, Oct 1

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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
Sep 12
SEA11:00 pmSeattle/Tacoma Intl
7h 05m
1 stop
DEC8:05 amDecatur Arpt
Oct 2
DEC9:12 amDecatur Arpt
8h 54m
1 stop
SEA4:06 pmSeattle/Tacoma Intl
$444
United Airlines
Sep 12
SEA11:00 pmSeattle/Tacoma Intl
7h 05m
1 stop
DEC8:05 amDecatur Arpt
Sep 30
DEC9:12 amDecatur Arpt
13h 25m
2 stops
SEA8:37 pmSeattle/Tacoma Intl
$450
United Airlines
Sep 12
SEA7:00 amSeattle/Tacoma Intl
9h 04m
1 stop
DEC6:04 pmDecatur Arpt
Oct 1
DEC9:12 amDecatur Arpt
14h 47m
2 stops
SEA9:59 pmSeattle/Tacoma Intl
$454

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 June 24, 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

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Sat 9/12

11:00 pm-8:05 am

1 stop7h 05m

Decatur Arpt

Fri 10/2

9:12 am-4:06 pm

1 stop8h 54m

$444

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Sat 9/12

11:00 pm-8:05 am

1 stop7h 05m

Decatur Arpt

Fri 10/2

9:12 am-8:37 pm

2 stops13h 25m

$450

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Sat 9/12

7:00 am-6:04 pm

1 stop9h 04m

Decatur Arpt

Thu 10/1

9:12 am-9:59 pm

2 stops14h 47m

$454

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Sat 9/12

5:20 pm-8:05 am

2 stops12h 45m

Decatur Arpt

Wed 9/30

9:12 am-9:55 pm

2 stops14h 43m

$459

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Sat 9/12

11:00 pm-8:05 am

1 stop7h 05m

Decatur Arpt

Tue 9/29

7:18 pm-6:52 pm

1 stop25h 34m

$477

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Sat 9/12

11:00 pm-8:05 am

1 stop7h 05m

Decatur Arpt

Tue 9/29

7:18 pm-2:53 pm

2 stops21h 35m

$483

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Mon 9/14

5:13 pm-6:04 pm

1 stop22h 51m

Decatur Arpt

Wed 9/30

9:12 am-4:06 pm

1 stop8h 54m

$490

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 7/29

7:05 pm-8:57 am

2 stops11h 52m

Decatur Arpt

Tue 9/15

7:20 pm-4:14 pm

2 stops22h 54m

$492

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Mon 9/14

5:13 pm-6:04 pm

1 stop22h 51m

Decatur Arpt

Wed 9/30

9:12 am-8:37 pm

2 stops13h 25m

$496

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Mon 9/14

11:59 pm-6:04 pm

2 stops16h 05m

Decatur Arpt

Thu 10/1

9:12 am-4:06 pm

1 stop8h 54m

$500

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

What is the cheapest airline that flies from Washington to Decatur Arpt?

United Airlines is the most popular carrier operating from Washington to Decatur Arpt

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 05m

Direct flights

None
The fastest flight from State of Washington to Decatur, Illinois takes 7h 05m
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
9,881 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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