When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Decatur Arpt Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Decatur Arpt Airport are updated daily.

How old do you have to be to fly from Seattle/Tacoma Intl 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 Seattle/Tacoma Intl 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.

$263 Cheap Flights from Seattle to Decatur in 2025/26

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Find the cheapest flights from Seattle to Decatur

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 6:01 pm

SEA

DEC

9h 01m1 stop

9:49 am - 4:01 pm

DEC

SEA

8h 12m1 stop

$394United Airlines

Tue, Jan 6 - Sun, Jan 11

7:00 am - 6:01 pm

SEA

DEC

9h 01m1 stop

7:09 pm - 11:32 am

DEC

SEA

18h 23m1 stop

$404United Airlines

Tue, Jan 6 - Sat, Jan 10

11:45 pm - 6:01 pm

SEA

DEC

16h 16m2 stops

9:49 am - 9:58 pm

DEC

SEA

14h 09m2 stops

$409United Airlines

Tue, Jan 6 - Sun, Jan 11

5:10 pm - 9:05 am

SEA

DEC

13h 55m2 stops

7:09 pm - 10:43 pm

DEC

SEA

29h 34m1 stop

$414United Airlines

Tue, Jan 6 - Sat, Jan 10

7:00 am - 6:01 pm

SEA

DEC

9h 01m1 stop

9:49 am - 11:32 am

DEC

SEA

27h 43m1 stop

$420United Airlines

Wed, Jan 14 - Fri, Jan 16

7:00 am - 6:01 pm

SEA

DEC

9h 01m1 stop

7:09 pm - 10:43 pm

DEC

SEA

29h 34m1 stop

$429United Airlines

Tue, Jan 6 - Sat, Jan 10

5:00 am - 6:01 pm

SEA

DEC

11h 01m2 stops

9:49 am - 11:32 am

DEC

SEA

27h 43m1 stop

$430United Airlines

Wed, Jan 14 - Fri, Jan 16

5:10 pm - 9:05 am

SEA

DEC

13h 55m2 stops

7:09 pm - 11:32 am

DEC

SEA

18h 23m1 stop

$439United Airlines

Tue, Jan 6 - Sat, Jan 10

5:10 pm - 9:05 am

SEA

DEC

13h 55m2 stops

7:09 pm - 9:12 pm

DEC

SEA

28h 03m3 stops

$444United Airlines

Wed, Feb 4 - Sun, Feb 8

5:00 am - 6:01 pm

SEA

DEC

11h 01m2 stops

7:09 pm - 11:47 pm

DEC

SEA

30h 38m2 stops

$455United Airlines

Wed, Jan 14 - Fri, Jan 16

United Airlines flights from Seattle to Decatur, Illinois

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

United Airlines

Jan 28

SEA7:00 amSeattle/Tacoma Intl

9h 01m

1 stop

DEC6:01 pmDecatur Arpt

Jan 31

DEC7:09 pmDecatur Arpt

18h 23m

1 stop

SEA11:32 amSeattle/Tacoma Intl

$404

Find similar

United Airlines

Jan 28

SEA5:00 amSeattle/Tacoma Intl

11h 01m

2 stops

DEC6:01 pmDecatur Arpt

Jan 31

DEC7:09 pmDecatur Arpt

22h 52m

1 stop

SEA4:01 pmSeattle/Tacoma Intl

$414

Find similar

United Airlines

Jan 14

SEA7:00 amSeattle/Tacoma Intl

9h 01m

1 stop

DEC6:01 pmDecatur Arpt

Jan 16

DEC9:49 amDecatur Arpt

27h 43m

1 stop

SEA11:32 amSeattle/Tacoma Intl

$420

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 1/6

7:00 am-6:01 pm

1 stop9h 01m

Decatur Arpt

Sun 1/11

9:49 am-4:01 pm

1 stop8h 12m

$394

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 1/6

7:00 am-6:01 pm

1 stop9h 01m

Decatur Arpt

Sat 1/10

7:09 pm-11:32 am

1 stop18h 23m

$404

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 1/6

11:45 pm-6:01 pm

2 stops16h 16m

Decatur Arpt

Sun 1/11

9:49 am-9:58 pm

2 stops14h 09m

$409

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 1/6

5:10 pm-9:05 am

2 stops13h 55m

Decatur Arpt

Sat 1/10

7:09 pm-10:43 pm

1 stop29h 34m

$414

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 1/14

7:00 am-6:01 pm

1 stop9h 01m

Decatur Arpt

Fri 1/16

9:49 am-11:32 am

1 stop27h 43m

$420

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 1/6

7:00 am-6:01 pm

1 stop9h 01m

Decatur Arpt

Sat 1/10

7:09 pm-10:43 pm

1 stop29h 34m

$429

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 1/14

5:00 am-6:01 pm

2 stops11h 01m

Decatur Arpt

Fri 1/16

9:49 am-11:32 am

1 stop27h 43m

$430

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Tue 1/6

5:10 pm-9:05 am

2 stops13h 55m

Decatur Arpt

Sat 1/10

7:09 pm-11:32 am

1 stop18h 23m

$439

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 2/4

5:10 pm-9:05 am

2 stops13h 55m

Decatur Arpt

Sun 2/8

7:09 pm-9:12 pm

3 stops28h 03m

$444

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 1/14

5:00 am-6:01 pm

2 stops11h 01m

Decatur Arpt

Fri 1/16

7:09 pm-11:47 pm

2 stops30h 38m

$455

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle 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 Seattle/Tacoma Intl to Decatur Arpt?

United Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Decatur Arpt

When to book flights from Seattle to Decatur, Illinois

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

Estimated round-trip price

Cheap Seattle to Decatur, Illinois (SEA to DEC) flight deals and tips

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

Fastest flight time	8h 59m
Direct flights	None

The fastest flight from Seattle to Decatur, Illinois takes 8h 59m

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

Search flight deals

How far is Seattle/Tacoma Intl to Decatur Arpt by plane?
The straight-line distance from Seattle/Tacoma Intl to Decatur Arpt is 1734.6 mi. A reasonable flight in good conditions will take 8h 59m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Decatur Arpt Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Decatur Arpt Airport are updated daily.
How old do you have to be to fly from Seattle/Tacoma Intl 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 Seattle/Tacoma Intl 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.

Effingham

Mattoon

Forsyth

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Decatur. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Decatur from Seattle with this policy.

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

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

If you are not ready to book a flight from Seattle to Decatur now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Decatur and let you know when they change.