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Decatur

$181+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEC
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/3. 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 12/1812:00 pmDCA - DEC
1 stop6h 59mUnited Airlines
Mon 12/229:44 amDEC - DCA
1 stop6h 15mUnited Airlines
Deal found 12/3$344
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/131:00 pmDCA - DEC
1 stop5h 52mUnited Airlines
Tue 12/167:08 pmDEC - DCA
1 stop3h 51mUnited Airlines
Deal found 12/1$374
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/175:00 pmDCA - DEC
1 stop25h 59mUnited Airlines
Sun 12/219:44 amDEC - DCA
1 stop4h 48mUnited Airlines
Deal found 12/1$396
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/122:15 pmLGA - DEC
1 stop4h 37mUnited Airlines
Sat 12/137:08 pmDEC - LGA
1 stop12h 59mUnited Airlines
Deal found 12/2$405
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/122:15 pmLGA - DEC
1 stop4h 37mUnited Airlines
Mon 12/159:49 amDEC - LGA
1 stop7h 18mUnited Airlines
Deal found 12/2$406
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/311:15 amLGA - DEC
1 stop7h 37mUnited Airlines
Thu 12/117:08 pmDEC - LGA
1 stop23h 59mUnited Airlines
Deal found 12/2$420
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/298:05 amLGA - DEC
1 stop10h 54mUnited Airlines
Wed 1/79:49 amDEC - LGA
1 stop8h 34mUnited Airlines
Deal found 12/3$427
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/191:00 pmDCA - DEC
1 stop5h 59mUnited Airlines
Tue 12/239:44 amDEC - DCA
1 stop6h 15mUnited Airlines
Deal found 12/3$435
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/187:29 pmLGA - DEC
2 stops23h 30mUnited Airlines
Mon 12/229:44 amDEC - LGA
1 stop6h 29mUnited Airlines
Deal found 12/3$444
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/316:15 amMDT - DEC
2 stops36h 44mUnited Airlines
Wed 1/79:49 amDEC - MDT
1 stop5h 44mUnited Airlines
Deal found 12/2$498
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/187:29 pmLGA - DEC
2 stops23h 30mUnited Airlines
Sat 12/207:09 pmDEC - LGA
1 stop25h 42mUnited Airlines
Deal found 12/2$499
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/196:30 amMDT - DEC
1 stop27h 35mUnited Airlines
Tue 12/237:09 pmDEC - MDT
1 stop3h 58mUnited Airlines
Deal found 12/4$511

Find flight deals from Pennsylvania to Decatur

Keep the following information in mind while searching for Pennsylvania to Decatur flight deals. Data was last updated December 4, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$318
(United Airlines)

One-way from

$181
(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
One-way flight from Pennsylvania to Decatur Arpt
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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 December 4, 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

Wed 1/14

6:00 pm-9:05 am

1 stop16h 05m

Decatur Arpt

Mon 1/19

9:49 am-3:32 pm

1 stop4h 43m

$318

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 12/18

12:00 pm-5:59 pm

1 stop6h 59m

Decatur Arpt

Mon 12/22

9:44 am-4:59 pm

1 stop6h 15m

$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

Mon 12/29

8:05 am-5:59 pm

1 stop10h 54m

Decatur Arpt

Wed 1/7

9:49 am-7:23 pm

1 stop8h 34m

$427

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Fri 12/19

1:00 pm-5:59 pm

1 stop5h 59m

Decatur Arpt

Tue 12/23

9:44 am-4:59 pm

1 stop6h 15m

$435

New YorkDecatur

LGA - DEC

LGADEC

New York LaGuardia

Thu 12/18

7:29 pm-5:59 pm

2 stops23h 30m

Decatur Arpt

Mon 12/22

9:44 am-5:13 pm

1 stop6h 29m

$444

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Mon 1/5

8:30 am-5:59 pm

1 stop10h 29m

Decatur Arpt

Thu 1/8

9:49 am-9:52 pm

2 stops11h 03m

$475

HarrisburgDecatur

MDT - DEC

MDTDEC

Harrisburg

Wed 12/31

6:15 am-5:59 pm

2 stops36h 44m

Decatur Arpt

Wed 1/7

9:49 am-4:33 pm

1 stop5h 44m

$498

New YorkDecatur

LGA - DEC

LGADEC

New York LaGuardia

Thu 12/18

7:29 pm-5:59 pm

2 stops23h 30m

Decatur Arpt

Sat 12/20

7:09 pm-9:51 pm

1 stop25h 42m

$499

New YorkDecatur

LGA - DEC

LGADEC

New York LaGuardia

Fri 4/10

8:00 am-5:51 pm

1 stop10h 51m

Decatur Arpt

Sun 4/12

6:55 pm-4:05 pm

1 stop20h 10m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 14 results
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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 $318, United Airlines can have you in Decatur, Illinois from Pennsylvania in 16h 05m. 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 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

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