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Decatur

$228+ Cheap flights from Washington to Decatur, IL (DEC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Washington to Decatur

Keep the following information in mind while searching for Washington to Decatur flight deals. Data was last updated June 12, 2025.

Round-trip from

$400
(United Airlines)

One-way from

$233
(United Airlines)
From Washington to Decatur Arpt
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One-way flight from Washington to Decatur Arpt
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Find flight deals from Washington to Decatur

Cheapest flights from Washington to Decatur
Explore the most affordable flight options available from Washington to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1211:45 pmSEA - DEC
1 stop7h 03mUnited Airlines
Mon 7/146:55 pmDEC - SEA
1 stop16h 55mUnited Airlines
Deal found 6/11$400
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2011:59 pmPDX - DEC
1 stop6h 57mUnited Airlines
Sun 8/249:42 amDEC - PDX
1 stop26h 03mUnited Airlines
Deal found 6/10$409

Cheapflights Fare Finder

Customize your flight search to find flights from Washington to Decatur 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Washington to Decatur that are best for you.

Fly from

Washington

Fly to

Decatur

Route

Depart

Return

Price

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Sat 7/12

11:45 pm-8:48 am

1 stop7h 03m

Decatur Arpt

Mon 7/14

6:55 pm-9:50 am

1 stop16h 55m

$400

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Wed 8/20

11:59 pm-8:56 am

1 stop6h 57m

Decatur Arpt

Sun 8/24

9:42 am-9:45 am

1 stop26h 03m

$409

PortlandDecatur

PDX - DEC

PDXDEC

Portland

Fri 7/4

10:54 am-8:48 am

1 stop19h 54m

$228

SeattleDecatur

SEA - DEC

SEADEC

Seattle/Tacoma Intl

Wed 7/9

11:45 pm-6:03 pm

1 stop16h 18m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Best time to book a flight from Washington to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Decatur

Rainfall in Decatur by month

Plan your trip to Decatur by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Decatur, Illinois ranges from 1.7 - 4.4 inches per month. June is typically the wettest month, when rainfall can reach 4.4 in. January is typically the driest time to visit Decatur, Illinois when rainfall is around 1.7 in.

Temperature in Decatur by month

Plan your trip to Decatur by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Decatur, Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Reviews of airlines servicing Decatur

Get insights into the airlines that provide service to Decatur. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Decatur. Reviews last updated June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Washington to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Decatur from Washington?

    If you book a flight to Decatur from Washington, you will be flying to Decatur Arpt, which is the city’s only airport. Decatur Arpt (DEC) is located 4.7 mi from the center of Decatur.

  • Can I find deals for flights from Washington to Decatur that include hotel bookings?

    Yes. In addition to deals on Washington to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Decatur?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Decatur.

  • Can I find deals for business class flights from Washington to Decatur?

    Yes. Cheapflights offers flight deals from Washington to Decatur by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Mattoon

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