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

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

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

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.

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.

$306 Cheap Flights from Seattle to Decatur in 2025

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Find the cheapest flights from Seattle to Decatur

Round-trip

One-way

Cheap round-trip flights

7:00 am - 5:59 pmSEA-DEC

8h 59m1 stop

9:30 am - 10:59 pmDEC-SEA

15h 29m2 stops

$384United Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

7:00 am - 5:59 pmSEA-DEC

8h 59m1 stop

9:42 am - 10:20 pmDEC-SEA

14h 38m1 stop

$400United Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

7:00 am - 6:03 pmSEA-DEC

9h 03m1 stop

9:45 am - 4:20 pmDEC-SEA

8h 35m1 stop

$401United Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

12:20 am - 8:48 amSEA-DEC

6h 28m1 stop

6:55 pm - 11:59 pmDEC-SEA

7h 04m1 stop

$405United Airlines

Find Deal

Wed, Aug 13 - Mon, Aug 18

7:00 am - 6:03 pmSEA-DEC

9h 03m1 stop

9:45 am - 8:48 pmDEC-SEA

13h 03m2 stops

$410United Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

12:20 am - 8:48 amSEA-DEC

6h 28m1 stop

9:45 am - 8:48 pmDEC-SEA

13h 03m2 stops

$415United Airlines

Find Deal

Wed, Aug 13 - Mon, Aug 18

3:36 pm - 8:56 amSEA-DEC

15h 20m2 stops

9:30 am - 10:59 pmDEC-SEA

15h 29m2 stops

$419United Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

11:45 pm - 8:48 amSEA-DEC

7h 03m1 stop

6:55 pm - 11:59 pmDEC-SEA

7h 04m1 stop

$450United Airlines

Find Deal

Wed, Aug 13 - Sun, Aug 17

3:36 pm - 8:56 amSEA-DEC

15h 20m2 stops

6:55 pm - 10:52 pmDEC-SEA

29h 57m3 stops

$464United Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

7:34 pm - 8:48 amSEA-DEC

11h 14m2 stops

6:55 pm - 11:59 pmDEC-SEA

7h 04m1 stop

$505United Airlines

Find Deal

Wed, Aug 13 - Sun, Aug 17

United Airlines flights from Seattle to Decatur, Illinois

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

United Airlines

Aug 27

SEA7:00 amSeattle/Tacoma Intl

8h 59m

1 stop

DEC5:59 pmDecatur Arpt

Sep 3

DEC9:30 amDecatur Arpt

15h 29m

2 stops

SEA10:59 pmSeattle/Tacoma Intl

$384

Find similar

United Airlines

Aug 27

SEA7:00 amSeattle/Tacoma Intl

8h 59m

1 stop

DEC5:59 pmDecatur Arpt

Sep 3

DEC9:42 amDecatur Arpt

14h 38m

1 stop

SEA10:20 pmSeattle/Tacoma Intl

$400

Find similar

United Airlines

Aug 14

SEA7:00 amSeattle/Tacoma Intl

9h 03m

1 stop

DEC6:03 pmDecatur Arpt

Aug 18

DEC9:45 amDecatur Arpt

8h 35m

1 stop

SEA4:20 pmSeattle/Tacoma Intl

$401

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/27

7:00 am-5:59 pm

1 stop8h 59m

Decatur Arpt

Wed 9/3

9:30 am-10:59 pm

2 stops15h 29m

$384

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/27

7:00 am-5:59 pm

1 stop8h 59m

Decatur Arpt

Wed 9/3

9:42 am-10:20 pm

1 stop14h 38m

$400

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Thu 8/14

7:00 am-6:03 pm

1 stop9h 03m

Decatur Arpt

Mon 8/18

9:45 am-4:20 pm

1 stop8h 35m

$401

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/13

12:20 am-8:48 am

1 stop6h 28m

Decatur Arpt

Mon 8/18

6:55 pm-11:59 pm

1 stop7h 04m

$405

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Thu 8/14

7:00 am-6:03 pm

1 stop9h 03m

Decatur Arpt

Mon 8/18

9:45 am-8:48 pm

2 stops13h 03m

$410

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/13

12:20 am-8:48 am

1 stop6h 28m

Decatur Arpt

Mon 8/18

9:45 am-8:48 pm

2 stops13h 03m

$415

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/27

3:36 pm-8:56 am

2 stops15h 20m

Decatur Arpt

Wed 9/3

9:30 am-10:59 pm

2 stops15h 29m

$419

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/13

11:45 pm-8:48 am

1 stop7h 03m

Decatur Arpt

Sun 8/17

6:55 pm-11:59 pm

1 stop7h 04m

$450

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/27

3:36 pm-8:56 am

2 stops15h 20m

Decatur Arpt

Wed 9/3

6:55 pm-10:52 pm

3 stops29h 57m

$464

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 8/13

7:34 pm-8:48 am

2 stops11h 14m

Decatur Arpt

Sun 8/17

6:55 pm-11:59 pm

1 stop7h 04m

$505

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Best Price Found	$384
Fastest flight time	6h 28m
Direct flights	None
Airports in Decatur, Illinois	1 airport

The best flight deal from Seattle to Decatur, Illinois found on momondo in the last 72 hours is $384

The fastest flight from Seattle to Decatur, Illinois takes 6h 28m

There are no direct flights from Seattle to Decatur, Illinois. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Decatur Arpt Airport.

There is 1 airport near Decatur, Illinois: Decatur Arpt (DEC)

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 6h 28m.
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.

How do I get Price Alerts for flights from Seattle to Decatur, Illinois?
Confirm your travel details to search for the latest offers for flights from Seattle to Decatur, Illinois. 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 Seattle to Decatur, Illinois with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
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.

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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.