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$241+ Cheap flights from Decatur, IL to Boston (DEC - BOS)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — BOS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Decatur to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Decatur (DEC) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$316
(United Airlines)

One-way from

$241
(United Airlines)
From Decatur Arpt to Boston Logan Intl
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One-way flight from Decatur Arpt to Boston Logan Intl
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Find flight deals from Decatur to Boston

Cheapest flights from Decatur to Boston
Explore the most affordable flight options available from Decatur to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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 9/139:42 amDEC - BOS
1 stop23h 14mUnited Airlines
Sat 9/207:45 amBOS - DEC
1 stop26h 11mUnited Airlines
Deal found 8/12$316
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/279:42 amDEC - BOS
1 stop8h 37mUnited Airlines
Sat 8/307:45 amBOS - DEC
1 stop26h 11mUnited Airlines
Deal found 8/13$332
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/119:38 amDEC - BOS
1 stop23h 18mUnited Airlines
Wed 10/1512:35 pmBOS - DEC
1 stop6h 29mUnited Airlines
Deal found 8/14$339
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 8/229:42 amDEC - BOS
1 stop14h 03mUnited Airlines
Tue 8/263:15 pmBOS - DEC
1 stop18h 41mUnited Airlines
Deal found 8/14$394
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 8/259:42 amDEC - BOS
1 stop14h 03mUnited Airlines
Tue 8/263:15 pmBOS - DEC
1 stop27h 44mUnited Airlines
Deal found 8/12$407
This United Airlines deal was found by Cheapflights users on 8/12. 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 8/279:42 amDEC - BOS
1 stop7h 04mUnited Airlines
Sun 8/316:09 amBOS - DEC
1 stop12h 50mUnited Airlines
Deal found 8/12$426

Cheapflights Fare Finder

 
Customize your flight search to find flights from Decatur to Boston 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 August 14, 2025.
Use the filters below to find and compare flights from Decatur to Boston that are best for you.

Fly from

Decatur

Fly to

Boston

Route

Depart

Return

Price

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Sat 9/13

9:42 am-9:56 am

1 stop23h 14m

Boston Logan Intl

Sat 9/20

7:45 am-8:56 am

1 stop26h 11m

$316

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Wed 8/27

9:42 am-7:19 pm

1 stop8h 37m

Boston Logan Intl

Sat 8/30

7:45 am-8:56 am

1 stop26h 11m

$332

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Sat 10/11

9:38 am-9:56 am

1 stop23h 18m

Boston Logan Intl

Wed 10/15

12:35 pm-6:04 pm

1 stop6h 29m

$339

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Mon 8/25

9:42 am-12:45 am

1 stop14h 03m

Boston Logan Intl

Tue 8/26

3:15 pm-5:59 pm

1 stop27h 44m

$407

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Wed 8/27

9:42 am-5:46 pm

1 stop7h 04m

Boston Logan Intl

Sun 8/31

6:09 am-5:59 pm

1 stop12h 50m

$426

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Mon 8/25

9:42 am-12:45 am

1 stop14h 03m

$241

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Wed 8/27

9:42 am-7:19 pm

1 stop8h 37m

$301

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Sun 8/24

9:42 am-9:56 am

1 stop23h 14m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Best time to book a flight from Decatur to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Decatur 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 Decatur to Boston

What is the cheapest month to book a flight from Decatur, Illinois to Boston?

Currently, January is the cheapest month in which you can book a flight from Decatur, Illinois to Boston (average of $218). Flying from Decatur, Illinois to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated August 14, 2025.
Get a feel of what it's like to fly with United Airlines from Decatur to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

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
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

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 Decatur to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Decatur, Illinois to Boston round-trip?

    Currently priced at $253, United Airlines will fly you from Decatur, Illinois to Boston and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Decatur, Illinois to Boston?

    Currently, January is the cheapest month in which you can book a flight from Decatur, Illinois to Boston (average of $218). Flying from Decatur, Illinois to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
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Medford
Watertown
Hampton Beach
Waltham
Seabrook
Lowell
Lincoln
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
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Saugus
Burlington
Braintree

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Alternative routes for Decatur to Boston

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Top airline flying from Decatur to Boston

Discover the top airline that operate flights from Decatur to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$253Average$539FlexibilityNo cancel feeOn-time69%

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