HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$344+ Cheap flights from Pennsylvania to Decatur, IL (DEC)

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEC
Dec 23 — Dec 301
Tue 12/23
Tue 12/30
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.

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 November 23, 2025.

This United Airlines deal was found by Cheapflights users on 11/22. 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 12/61:00 pmDCA - DEC
1 stop5h 52mUnited Airlines
Tue 12/97:08 pmDEC - DCA
1 stop3h 51mUnited Airlines
Deal found 11/22$344
This United Airlines deal was found by Cheapflights users on 11/22. 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 12/211:15 amLGA - DEC
1 stop7h 37mUnited Airlines
Sun 12/149:49 amDEC - LGA
1 stop7h 18mUnited Airlines
Deal found 11/22$359
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/32:15 pmLGA - DEC
1 stop4h 37mUnited Airlines
Thu 12/117:08 pmDEC - LGA
1 stop23h 59mUnited Airlines
Deal found 11/23$429
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/81:00 pmDCA - DEC
1 stop5h 52mUnited Airlines
Fri 12/127:08 pmDEC - DCA
1 stop13h 45mUnited Airlines
Deal found 11/23$508
This United Airlines deal was found by Cheapflights users on 11/22. 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 11/241:15 pmLGA - DEC
1 stop5h 37mUnited Airlines
Sun 11/307:08 pmDEC - LGA
1 stop20h 59mUnited Airlines
Deal found 11/22$562
This United Airlines deal was found by Cheapflights users on 11/21. 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 12/231:00 pmDCA - DEC
1 stop21h 05mUnited Airlines
Sun 12/287:09 pmDEC - DCA
1 stop15h 49mUnited Airlines
Deal found 11/21$563
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/216:15 amLGA - DEC
1 stop27h 50mUnited Airlines
Sun 12/287:09 pmDEC - LGA
1 stop25h 05mUnited Airlines
Deal found 11/23$785

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 November 23, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$314
(United Airlines)
Provider with most accurate pricing for Philadelphia-Decatur Arpt flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Decatur Arpt flights.
Search Deals
From Pennsylvania to Decatur Arpt
Search Deals

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 November 23, 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

Sat 12/6

1:00 pm-5:52 pm

1 stop5h 52m

Decatur Arpt

Tue 12/9

7:08 pm-11:59 pm

1 stop3h 51m

$344

HarrisburgDecatur

MDT - DEC

MDTDEC

Harrisburg

Sat 1/17

10:48 am-9:05 am

1 stop23h 17m

Decatur Arpt

Wed 1/21

9:49 am-4:34 pm

1 stop5h 45m

$370

New YorkDecatur

LGA - DEC

LGADEC

New York LaGuardia

Wed 12/3

1:15 pm-5:52 pm

1 stop5h 37m

Decatur Arpt

Thu 12/11

7:08 pm-6:07 pm

1 stop21h 59m

$429

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Mon 12/8

1:00 pm-5:52 pm

1 stop5h 52m

Decatur Arpt

Fri 12/12

7:08 pm-9:53 am

1 stop13h 45m

$508

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Tue 12/23

1:00 pm-9:05 am

1 stop21h 05m

Decatur Arpt

Sun 12/28

7:09 pm-11:58 am

1 stop15h 49m

$563

New YorkDecatur

LGA - DEC

LGADEC

New York LaGuardia

Sun 12/21

6:15 am-9:05 am

1 stop27h 50m

Decatur Arpt

Sun 12/28

7:09 pm-9:14 pm

1 stop25h 05m

$785

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Sun 11/30

12:00 pm-5:52 pm

1 stop6h 52m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/22

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.

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

    For as low as $344, United Airlines can have you in Decatur, Illinois from Pennsylvania in 5h 52m. Pennsylvania and Decatur, Illinois are separated by a distance of 635 mi.

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

    While some choose either Washington, D.C. Reagan-National - Decatur Arpt or Harrisburg - Decatur Arpt, New York LaGuardia - 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.
John F Kennedy Intl to O'Hare Intl flights
Dallas/Fort Worth to O'Hare Intl flights
Newark to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Dallas/Fort Worth to Midway flights
Seattle to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
Boston to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Baltimore to O'Hare Intl flights
Denver to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Sky Harbor Intl to O'Hare Intl flights
John F Kennedy Intl to Midway flights
Philadelphia to O'Hare Intl flights
Atlanta to O'Hare Intl flights
Hobby to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Hobby to Midway flights
Minneapolis to Midway flights
LaGuardia to Midway flights
Los Angeles to Midway flights
Atlanta to Midway flights
Minneapolis to O'Hare Intl flights
Orlando to O'Hare Intl flights
Raleigh to O'Hare Intl flights
Tampa to O'Hare Intl flights
Ontario to O'Hare Intl flights
Love Field to O'Hare Intl flights
Charlotte to O'Hare Intl flights
Dulles Intl to Midway flights
Santa Ana to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
Newark to Midway flights
Austin to O'Hare Intl flights
Cleveland to O'Hare Intl flights
San Diego to O'Hare Intl flights
Baltimore to Midway flights
John F Kennedy Intl to St. Louis flights
Love Field to Midway flights
San Francisco to Midway flights
Newark to St. Louis flights
Miami to O'Hare Intl flights
Portland to O'Hare Intl flights
Hartford to O'Hare Intl flights
LaGuardia to St. Louis flights
Denver to Midway flights
Orlando to Midway flights
Denver to St. Louis 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.