HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$392+ Cheap flights from Baltimore to Decatur, IL (BWI - 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — DEC
May 19 — May 261
Tue 5/19
Tue 5/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Decatur with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Baltimore to Decatur

Cheapest flights from Baltimore to Decatur
Explore the most affordable flight options available from Baltimore to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 19, 2026.

This United Airlines deal was found by Cheapflights users on 4/16. 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 5/126:15 am
BWI
-
DEC
1 stop12h 42m
United Airlines
Mon 5/187:25 pm
DEC
-
BWI
1 stop21h 03m
United Airlines
Deal found 4/16$427
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/123:27 pm
BWI
-
DEC
1 stop18h 31m
United Airlines
Sun 5/177:25 pm
DEC
-
BWI
1 stop13h 38m
United Airlines
Deal found 4/16$435
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/76:15 am
BWI
-
DEC
1 stop12h 43m
United Airlines
Sun 5/177:25 pm
DEC
-
BWI
1 stop13h 38m
United Airlines
Deal found 4/16$466
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/186:15 am
BWI
-
DEC
1 stop12h 43m
United Airlines
Mon 5/257:05 pm
DEC
-
BWI
1 stop4h 28m
United Airlines
Deal found 4/17$470
This United Airlines deal was found by Cheapflights users on 4/18. 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 6/118:15 am
BWI
-
DEC
1 stop10h 41m
United Airlines
Mon 6/157:05 pm
DEC
-
BWI
1 stop4h 28m
United Airlines
Deal found 4/18$515
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/86:15 am
BWI
-
DEC
1 stop12h 43m
United Airlines
Sun 5/177:25 pm
DEC
-
BWI
1 stop13h 38m
United Airlines
Deal found 4/16$531
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/16:15 am
BWI
-
DEC
1 stop12h 43m
United Airlines
Sun 5/39:42 am
DEC
-
BWI
1 stop6h 46m
United Airlines
Deal found 4/15$542
This United Airlines deal was found by Cheapflights users on 4/15. 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 4/3011:00 am
BWI
-
DEC
1 stop7h 58m
United Airlines
Mon 5/49:42 am
DEC
-
BWI
1 stop8h 27m
United Airlines
Deal found 4/15$670
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Sun 4/1911:08 am
BWI
-
DEC
1 stop7h 49m
United Airlines
Tue 4/217:37 pm
DEC
-
BWI
1 stop17h 25m
United Airlines
Deal found 4/15$1,113

Find flight deals from Baltimore to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Decatur (DEC). 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 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$427
(United Airlines)

One-way from

$392
(United Airlines)
Provider with most accurate pricing for Baltimore/Washington-Decatur Arpt flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Decatur Arpt flights.
Search Deals
From Baltimore/Washington to Decatur Arpt
Search Deals
One-way flight from Baltimore/Washington to Decatur Arpt
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore 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 April 19, 2026.
Use the filters below to find and compare flights from Baltimore to Decatur that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Tue 5/12

3:27 pm-8:58 am

1 stop18h 31m

Decatur Arpt

Sun 5/17

7:25 pm-10:03 am

1 stop13h 38m

$435

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Mon 5/18

6:15 am-5:58 pm

1 stop12h 43m

Decatur Arpt

Mon 5/25

7:05 pm-12:33 am

1 stop4h 28m

$470

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Thu 6/11

6:15 am-5:56 pm

1 stop12h 41m

Decatur Arpt

Sun 6/14

7:05 pm-12:33 am

1 stop4h 28m

$515
Quickest round-trip

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Thu 6/11

8:15 am-5:56 pm

1 stop10h 41m

Decatur Arpt

Mon 6/15

7:05 pm-12:33 am

1 stop4h 28m

$515

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Fri 6/12

8:05 pm-5:56 pm

1 stop22h 51m

Decatur Arpt

Mon 6/15

7:05 pm-12:33 am

1 stop4h 28m

$515

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Fri 6/12

8:05 pm-5:56 pm

1 stop22h 51m

Decatur Arpt

Sun 6/14

7:05 pm-12:33 am

1 stop4h 28m

$515

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Mon 5/11

6:15 am-5:58 pm

1 stop12h 43m

Decatur Arpt

Sat 5/16

7:25 pm-10:03 am

1 stop13h 38m

$531

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Sat 5/2

3:27 pm-8:58 am

1 stop18h 31m

Decatur Arpt

Wed 5/6

9:42 am-5:28 pm

1 stop6h 46m

$542

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Fri 5/1

6:15 am-5:58 pm

1 stop12h 43m

Decatur Arpt

Sun 5/3

9:42 am-5:28 pm

1 stop6h 46m

$542

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Thu 4/30

11:00 am-5:58 pm

1 stop7h 58m

Decatur Arpt

Mon 5/4

9:42 am-7:09 pm

1 stop8h 27m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Compare providers for flights from Baltimore to Decatur

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Decatur in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Decatur, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Decatur, Illinois 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 Baltimore-Decatur, Illinois 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 Baltimore to Decatur

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

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Decatur. 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 Baltimore to Decatur, Illinois?

    United Airlines can get you from Baltimore to Decatur, Illinois in just under 18h 31m. Your travel time can differ by up to . Airlines will cover a distance of 651 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baltimore 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

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Mattoon
Effingham

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.