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$49+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — PHL
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit All airports to Philadelphia are usually found in October or December, booked 85 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 julio 31, 2025.

Round-trip from

$97
(Kiwi.com)

One-way from

$49
(Booking.com)

Popular in

March

Cheapest in

October

Average price

$174

Good round-trip deal

$268 or less

Good one-way deal

$91 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. 23% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
jue. 8/78:44 amDTW - PHL
Nonstop1h 41mMultiple Airlines
mié. 8/137:00 amPHL - DTW
Nonstop1h 40mMultiple Airlines
Deal found 7/29$97
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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.
vie. 8/297:10 pmDTW - PHL
Nonstop1h 39mSpirit Airlines
vie. 9/56:25 amPHL - DTW
Nonstop1h 52mSpirit Airlines
Deal found 7/30$98
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/78:44 amDTW - PHL
Nonstop1h 41mFrontier
dom. 8/106:00 amPHL - DTW
Nonstop1h 49mFrontier
Deal found 7/30$100

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 julio 31, 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

jue. 8/7

8:44 am-10:25 am

Nonstop1h 41m

Philadelphia

mié. 8/13

7:00 am-8:40 am

Nonstop1h 40m

$97

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

vie. 8/29

7:10 pm-8:49 pm

Nonstop1h 39m

Philadelphia

vie. 9/5

6:25 am-8:17 am

Nonstop1h 52m

$98

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

jue. 8/7

8:44 am-10:25 am

Nonstop1h 41m

Philadelphia

dom. 8/10

6:00 am-7:49 am

Nonstop1h 49m

$100

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

vie. 8/15

7:10 pm-8:49 pm

Nonstop1h 39m

$49

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

vie. 8/29

9:16 am-10:56 am

Nonstop1h 40m

$50

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

mar. 10/28

6:40 am-3:20 pm

2 stops8h 40m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 25, 2025.

Booking 85 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 julio 31, 2025.

It’s typically best to fly out from Detroit to Philadelphia in the evening. Doing so could potentially save you 76% 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 July 27, 2025.

Travelers seeking maximum savings on their Detroit to Philadelphia flight should consider departing on Thursday 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 julio 31, 2025.

The most flights from DTT to PHL are scheduled on a Thursday (32 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 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 julio 31, 2025.
See what other customers who have flown with Southwest, Spirit Airlines, and Frontier 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
4,246 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,049 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,239 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 18 outbound flights from All airports to Philadelphia offered by 5 different airlines.

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

    Our cheapest airline available from Detroit to Philadelphia is Spirit Airlines. Our recent data shows that you can find tickets from as low as $98 on this airline. An additional option worth looking into is Frontier, starting at $100. Spirit Airlines is 51% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Detroit to Philadelphia one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $49. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from Detroit to Philadelphia for a low price.

  • 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: PSA Airlines (93%), Spirit Airlines (85%), SkyWest Airlines (83%).

  • What are the cheapest flights from Detroit to Philadelphia?

    Looking at all options, your cheapest flight can be booked for $49. While the most popular route (Detroit Metropolitan Wayne County - Philadelphia) can be booked for $77 on average our data indicates $1,708 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
Cherry Hill
Ocean City
Chester
Millville
Reading
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Exton
Glen Mills
Springfield

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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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$114FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$57Average$123FlexibilityNo cancel feeOn-time65%
DeltaCheapest$126Average$290FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$140Average$282FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$216Average$343FlexibilityNo cancel feeOn-time63%

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