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$72+ Cheap flights from Detroit to Philadelphia (DTT - PHL)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — PHL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit All airports to Philadelphia are usually found in December or October, booked 46 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from Detroit to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Philadelphia (PHL). 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 September 16, 2025.

Round-trip from

$143
(Priceline)

One-way from

$72
(Priceline)

Popular in

March

Cheapest in

December

Average price

$198

Good round-trip deal

$272 or less

Good one-way deal

$121 or less
From Detroit (DTT) to Philadelphia
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One-way flight from Detroit (DTT) to Philadelphia
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Highest demand for flights based on searches. 16% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Detroit (DTT) to Philadelphia.
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Price to beat on a one-way flight from Detroit (DTT) to Philadelphia.
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Find flight deals from Detroit to Philadelphia

Cheapest flights from Detroit to Philadelphia
Explore the most affordable flight options available from Detroit to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/33:42 pmDTW - PHL
1 stop9h 17mFrontier
Tue 10/712:07 pmPHL - DTW
1 stop6h 20mFrontier
Deal found 9/14$143
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/101:49 pmDTW - PHL
1 stop11h 52mFrontier
Sun 10/126:15 amPHL - DTW
1 stop6h 19mFrontier
Deal found 9/14$144
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/91:24 pmDTW - PHL
1 stop11h 49mFrontier
Mon 10/136:42 amPHL - DTW
1 stop18h 17mFrontier
Deal found 9/14$145
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:58 pmDTW - PHL
1 stop8h 01mMultiple Airlines
Sun 11/25:19 amPHL - DTW
Nonstop1h 47mMultiple Airlines
Deal found 9/14$146
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:54 amDTW - PHL
1 stop7h 40mMultiple Airlines
Mon 10/66:19 amPHL - DTW
Nonstop1h 47mMultiple Airlines
Deal found 9/15$147
This Flightnetwork deal was found by Cheapflights users on 9/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:24 pmDTW - PHL
1 stop8h 58mMultiple Airlines
Thu 11/61:31 pmPHL - DTW
Nonstop1h 49mMultiple Airlines
Deal found 9/15$148
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:55 pmDTW - PHL
Nonstop1h 34mSpirit Airlines
Sat 10/186:19 amPHL - DTW
Nonstop1h 47mSpirit Airlines
Deal found 9/14$149
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:55 pmDTW - PHL
Nonstop1h 34mSpirit Airlines
Sat 10/116:19 amPHL - DTW
Nonstop1h 47mSpirit Airlines
Deal found 9/14$150
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:20 pmDTW - PHL
Nonstop1h 34mSpirit Airlines
Fri 10/316:19 amPHL - DTW
Nonstop1h 47mSpirit Airlines
Deal found 9/14$151
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:55 pmDTW - PHL
Nonstop1h 34mSpirit Airlines
Mon 11/36:19 amPHL - DTW
Nonstop1h 47mSpirit Airlines
Deal found 9/14$152
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/21:36 pmDTW - PHL
1 stop11h 16mMultiple Airlines
Mon 10/66:19 amPHL - DTW
Nonstop1h 47mMultiple Airlines
Deal found 9/14$153
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/91:24 pmDTW - PHL
1 stop11h 49mMultiple Airlines
Mon 10/136:19 amPHL - DTW
Nonstop1h 47mMultiple Airlines
Deal found 9/14$154

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to Philadelphia 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 September 16, 2025.
Use the filters below to find and compare flights from Detroit to Philadelphia that are best for you.

Fly from

Detroit

Fly to

Philadelphia

Route

Depart

Return

Price

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Sat 11/15

6:29 pm-12:13 am

1 stop5h 44m

Philadelphia

Mon 11/17

6:00 am-11:29 am

1 stop5h 29m

$143

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Fri 11/7

6:07 pm-12:19 am

1 stop6h 12m

Philadelphia

Sun 11/9

1:31 pm-3:20 pm

Nonstop1h 49m

$143

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Thu 10/9

2:20 pm-3:54 pm

Nonstop1h 34m

Philadelphia

Sun 10/12

6:19 am-8:06 am

Nonstop1h 47m

$144

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Fri 9/26

1:36 pm-12:52 am

1 stop11h 16m

Philadelphia

Sun 9/28

6:15 am-12:36 pm

1 stop6h 21m

$144

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Thu 10/30

2:20 pm-3:54 pm

Nonstop1h 34m

Philadelphia

Mon 11/3

6:19 am-8:06 am

Nonstop1h 47m

$150

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Fri 10/10

1:49 pm-1:41 am

1 stop11h 52m

Philadelphia

Mon 10/13

6:19 am-8:06 am

Nonstop1h 47m

$153

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Fri 11/14

12:24 pm-1:24 am

1 stop13h 00m

Philadelphia

Sun 11/16

1:31 pm-3:20 pm

Nonstop1h 49m

$158

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Sat 11/1

9:30 pm-11:05 pm

Nonstop1h 35m

Philadelphia

Wed 11/5

6:00 am-7:48 am

Nonstop1h 48m

$159

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Sat 11/15

6:29 pm-12:13 am

1 stop5h 44m

Philadelphia

Sun 11/16

5:50 am-5:12 pm

1 stop11h 22m

$168

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Fri 12/5

6:18 pm-12:38 am

1 stop6h 20m

Philadelphia

Sun 12/7

1:31 pm-3:20 pm

Nonstop1h 49m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results
1
2
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Best time to book a flight from Detroit to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Detroit 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 Detroit to Philadelphia

How far ahead should I book a flight from Detroit to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Detroit to Philadelphia. Price data was last updated on September 12, 2025.

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Detroit to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Detroit to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Detroit to Philadelphia (average of $236). Flying from Detroit to Philadelphia in March is currently the most expensive (average of $295). 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.

What is the cheapest time of day to fly from DTT to PHL?

Find hourly flight availability from Detroit to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

It’s typically best to fly out from Detroit to Philadelphia in the evening. Doing so could potentially save you 77% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Detroit to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Detroit to Philadelphia. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Detroit to Philadelphia flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Detroit to Philadelphia

Explore weekly flight availability from Detroit to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 16, 2025.

The most flights from DTT to PHL are scheduled on a Monday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost to fly round-trip from Detroit to Philadelphia?

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated September 16, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from Detroit to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Detroit to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Detroit to Philadelphia?

    To fly from Detroit to Philadelphia, you need to book a flight from All airports (DTT) to Philadelphia (PHL). Nonstop flights to Philadelphia from Detroit All airports take 1h 33m on average. When it comes time to book airfare, you have a few options: there are 24 outbound flights from All airports to Philadelphia offered by 5 different airlines.

  • How long is the flight from Detroit to Philadelphia?

    A quick flight from Detroit to Philadelphia can take about 1h 34m. Frontier provides one of the quickest options available for as low as $144. Airlines will cover a distance of 452 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Detroit to Philadelphia round-trip?

    Our cheapest airline available from Detroit to Philadelphia is Frontier. Our recent data shows that you can find tickets from as low as $56 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $60 and $139 round-trip. Frontier is 74% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Detroit to Philadelphia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Detroit to Philadelphia on time: LATAM Airlines (100%), Frontier (94%), Aeromexico (85%).

  • What are the cheapest flights from Detroit to Philadelphia?

    Looking at all options, your cheapest flight can be booked for $58. While the most popular route (Detroit Metropolitan Wayne County - Philadelphia) can be booked for $143 on average, our data indicates $838 when flying from Detroit to Philadelphia.

  • Can I find deals for flights from Detroit to Philadelphia that include hotel bookings?

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

  • How can I find direct flights from Detroit to Philadelphia?

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

  • Can I find deals for business class flights from Detroit to Philadelphia?

    Yes. Cheapflights offers flight deals from Detroit to Philadelphia 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 Detroit to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Detroit to Philadelphia (average of $236). Flying from Detroit to Philadelphia in March is currently the most expensive (average of $295). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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Alternative routes for Detroit to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Detroit to Philadelphia

Discover the top 5 airlines that operate flights from Detroit to Philadelphia. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$52Average$118FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$61Average$126FlexibilityNo cancel feeOn-time65%
DeltaCheapest$139Average$310FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$163Average$293FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$216Average$343FlexibilityNo cancel feeOn-time63%

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