HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$237+ Cheap flights from Pennsylvania 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEC
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pennsylvania 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 Pennsylvania to Decatur

Keep the following information in mind while searching for Pennsylvania to Decatur flight deals. Data was last updated August 13, 2025.

Round-trip from

$314
(United Airlines)

One-way from

$237
(United Airlines)
From Pennsylvania to Decatur Arpt
Search Deals
One-way flight from Pennsylvania to Decatur Arpt
Search Deals

Find flight deals from Pennsylvania to Decatur

Cheapest flights from Pennsylvania to Decatur
Explore the most affordable flight options available from Pennsylvania to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This United Airlines deal was found by Cheapflights users on 8/11. 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.
Wed 9/101:00 pmDCA - DEC
1 stop5h 59mUnited Airlines
Wed 9/179:42 amDEC - DCA
1 stop5h 09mUnited Airlines
Deal found 8/11$314
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 8/271:00 pmDCA - DEC
1 stop5h 59mUnited Airlines
Sun 8/319:42 amDEC - DCA
1 stop5h 09mUnited Airlines
Deal found 8/12$324
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.
Thu 10/162:00 pmDCA - DEC
1 stop5h 04mUnited Airlines
Sat 10/189:38 amDEC - DCA
1 stop6h 23mUnited Airlines
Deal found 8/12$340
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/307:29 pmLGA - DEC
2 stops14h 27mUnited Airlines
Wed 9/39:42 amDEC - LGA
1 stop6h 35mUnited Airlines
Deal found 8/11$359
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.
Thu 10/22:00 pmDCA - DEC
1 stop5h 04mUnited Airlines
Sun 10/56:55 pmDEC - DCA
1 stop15h 03mUnited Airlines
Deal found 8/12$374
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/307:29 pmLGA - DEC
2 stops14h 27mUnited Airlines
Tue 9/29:42 amDEC - LGA
1 stop25h 32mUnited Airlines
Deal found 8/11$384
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.
Tue 9/305:48 pmMDT - DEC
1 stop25h 16mUnited Airlines
Sat 10/49:38 amDEC - MDT
1 stop6h 14mUnited Airlines
Deal found 8/12$386
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 10/1512:00 pmDCA - DEC
1 stop7h 04mUnited Airlines
Fri 10/176:55 pmDEC - DCA
1 stop14h 03mUnited Airlines
Deal found 8/12$390
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 10/162:00 pmDCA - DEC
1 stop5h 04mUnited Airlines
Sat 10/259:38 amDEC - DCA
1 stop12h 05mUnited Airlines
Deal found 8/11$400
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.
Tue 9/233:30 pmDCA - DEC
1 stop18h 26mUnited Airlines
Sun 9/286:55 pmDEC - DCA
1 stop15h 03mUnited Airlines
Deal found 8/12$420
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 9/267:00 pmDCA - DEC
1 stop14h 51mUnited Airlines
Sun 9/286:55 pmDEC - DCA
1 stop19h 56mUnited Airlines
Deal found 8/11$451
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 8/223:25 pmLGA - DEC
1 stop18h 31mUnited Airlines
Mon 8/259:30 amDEC - LGA
2 stops27h 43mUnited Airlines
Deal found 8/11$482

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 August 13, 2025.
Use the filters below to find and compare flights from Pennsylvania to Decatur that are best for you.

Fly from

Pennsylvania

Fly to

Decatur

Route

Depart

Return

Price

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 9/25

2:00 pm-6:04 pm

1 stop5h 04m

Decatur Arpt

Sat 9/27

9:38 am-5:01 pm

1 stop6h 23m

$314

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 9/10

1:00 pm-5:59 pm

1 stop5h 59m

Decatur Arpt

Wed 9/17

9:42 am-3:51 pm

1 stop5h 09m

$314

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 8/27

1:00 pm-5:59 pm

1 stop5h 59m

Decatur Arpt

Sun 8/31

9:42 am-3:51 pm

1 stop5h 09m

$324

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 10/16

2:00 pm-6:04 pm

1 stop5h 04m

Decatur Arpt

Sat 10/18

9:38 am-5:01 pm

1 stop6h 23m

$340

New YorkDecatur

LGA - DEC

LGADEC

New York LaGuardia

Sat 8/30

7:29 pm-8:56 am

2 stops14h 27m

Decatur Arpt

Wed 9/3

9:42 am-5:17 pm

1 stop6h 35m

$359

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 10/2

2:00 pm-6:04 pm

1 stop5h 04m

Decatur Arpt

Sun 10/5

6:55 pm-10:58 am

1 stop15h 03m

$374

New YorkDecatur

LGA - DEC

LGADEC

New York LaGuardia

Sat 8/30

7:29 pm-8:56 am

2 stops14h 27m

Decatur Arpt

Tue 9/2

9:42 am-12:14 pm

1 stop25h 32m

$384

HarrisburgDecatur

MDT - DEC

MDTDEC

Harrisburg

Tue 9/30

5:48 pm-6:04 pm

1 stop25h 16m

Decatur Arpt

Sat 10/4

9:38 am-4:52 pm

1 stop6h 14m

$386

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 10/15

12:00 pm-6:04 pm

1 stop7h 04m

Decatur Arpt

Fri 10/17

6:55 pm-9:58 am

1 stop14h 03m

$390

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 10/16

2:00 pm-6:04 pm

1 stop5h 04m

Decatur Arpt

Sat 10/25

9:38 am-10:43 pm

1 stop12h 05m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 19 results
1
2

Best time to book a flight from Pennsylvania to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Pennsylvania 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 Pennsylvania to Decatur
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania 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 Pennsylvania?

    Decatur Arpt (DEC), located 4.7 mi from the city center, is the airport you fly into when you book flights from Pennsylvania to Decatur.

  • What are the most popular routes from Pennsylvania to Decatur, Illinois?

    While some choose either New York LaGuardia - Decatur Arpt or Harrisburg - Decatur Arpt, Washington, D.C. Reagan-National - Decatur Arpt is the most popular route from Pennsylvania to Decatur, Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania 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.

Alternative routes for Pennsylvania to Decatur

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to O'Hare Intl flights
Newark to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
Dallas/Fort Worth to Midway flights
Reagan-National to O'Hare Intl flights
Seattle to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Newark to Midway flights
Boston to O'Hare Intl flights
John F Kennedy Intl to Midway flights
Charlotte to O'Hare Intl flights
Denver to O'Hare Intl flights
Austin to O'Hare Intl flights
Atlanta to O'Hare Intl flights
Dulles Intl to Midway flights
Baltimore to O'Hare Intl flights
Orlando to O'Hare Intl flights
Ontario to O'Hare Intl flights
Raleigh to O'Hare Intl flights
Love Field to O'Hare Intl flights
Atlanta to Midway flights
Sky Harbor Intl to O'Hare Intl flights
LaGuardia to Midway flights
Santa Ana to O'Hare Intl flights
Love Field to Midway flights
Hobby to O'Hare Intl flights
San Francisco to Midway flights
Reagan-National to Midway flights
Philadelphia to Midway flights
George Bush Intcntl to O'Hare Intl flights
Los Angeles to Midway flights
Hobby to Midway flights
San Diego to O'Hare Intl flights
Portland to O'Hare Intl flights
San Jose to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
Minneapolis to O'Hare Intl flights
Cleveland to O'Hare Intl flights
Burbank to O'Hare Intl flights
Orlando to Midway flights
Baltimore to Midway flights
Miami to O'Hare Intl flights
Boston to Midway flights
Denver to St. Louis flights
Oakland to O'Hare Intl flights
Seattle to Midway flights

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.