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$394+ Cheap flights from Decatur, IL to Boston (DEC - BOS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — BOS
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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Cheap 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 April 10, 2026.

This United Airlines deal was found by Cheapflights users on 4/6. 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 5/69:42 am
DEC
-
BOS
1 stop14h 17m
United Airlines
Wed 5/136:39 pm
BOS
-
DEC
1 stop15h 19m
United Airlines
Deal found 4/6$394
This United Airlines deal was found by Cheapflights users on 4/5. 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.
Tue 9/16:55 pm
DEC
-
BOS
1 stop13h 28m
United Airlines
Sat 9/55:01 pm
BOS
-
DEC
1 stop25h 50m
United Airlines
Deal found 4/5$399
This United Airlines deal was found by Cheapflights users on 4/6. 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.
Tue 5/57:25 pm
DEC
-
BOS
1 stop18h 38m
United Airlines
Tue 5/123:00 pm
BOS
-
DEC
1 stop27h 58m
United Airlines
Deal found 4/6$414
This United Airlines deal was found by Cheapflights users on 4/9. 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.
Thu 6/49:37 am
DEC
-
BOS
2 stops13h 22m
United Airlines
Sun 6/76:00 am
BOS
-
DEC
1 stop12h 56m
United Airlines
Deal found 4/9$430

Find 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 April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$394
(United Airlines)
Provider with most accurate pricing for Decatur Arpt-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Decatur Arpt-Boston Logan Intl flights.
Search Deals
From Decatur Arpt to Boston Logan Intl
Search Deals

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 April 10, 2026.
Use the filters below to find and compare flights from Decatur to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Tue 9/1

6:55 pm-9:55 pm

1 stop26h 00m

Boston Logan Intl

Sat 9/5

3:13 pm-8:46 am

1 stop18h 33m

$399

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Wed 5/6

9:42 am-7:04 pm

2 stops8h 22m

Boston Logan Intl

Wed 5/13

8:05 am-5:58 pm

1 stop10h 53m

$414
Quickest round-trip

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Thu 6/4

7:05 pm-12:59 am

1 stop4h 54m

Boston Logan Intl

Sun 6/7

7:19 am-5:56 pm

1 stop11h 37m

$419

DecaturBoston

DEC - BOS

DECBOS

Decatur Arpt

Tue 5/5

7:25 pm-1:51 pm

2 stops17h 26m

Boston Logan Intl

Tue 5/12

6:39 pm-5:58 pm

1 stop24h 19m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Decatur, Illinois-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Decatur, Illinois-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Decatur, Illinois-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Decatur, Illinois-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Decatur, Illinois-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, July is the cheapest month in which you can book a flight from Decatur, Illinois to Boston (average of $247). Flying from Decatur, Illinois to Boston in April is currently the most expensive (average of $371). 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 April 10, 2026.
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
9,562 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,562 reviews
United Airlines
7.4
Good
9,562 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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.

  • How long is the flight from Decatur, Illinois to Boston?

    Departing from Decatur, Illinois to Boston will take you 26h. The distance between Decatur, Illinois and Boston is about 944 mi.

  • 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, July is the cheapest month in which you can book a flight from Decatur, Illinois to Boston (average of $247). Flying from Decatur, Illinois to Boston in April is currently the most expensive (average of $371). 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
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Seabrook
Warwick
Peabody
York Beach
Londonderry
Swansea
Old Orchard Beach
Lincoln
Quincy
Waltham
Lowell

Browse thousands of different options on Cheapflights for your next trip

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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 April 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$302Average$394FlexibilityNo cancel feeOn-time69%

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