$47 Cheap Flights from Detroit (DTW) to Philadelphia (PHL)

View $47 flight on Thu, Aug 7, 2025Opens in a new window

Popular airlines from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)

Cheap Flights from Detroit to Philadelphia (DTW-PHL)

Prices were available within the past 7 days and start at $47 for one-way flights and $97 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Aug 7 - Sun, Aug 17
DTW
Detroit
PHL
Philadelphia
$97 Roundtrip, found 2 hours ago
$97
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Aug 7 from Detroit to Philadelphia, returning Sun, Aug 17, priced at $97 found 2 hours ago
Frontier Airlines
Mon, Aug 25 - Mon, Sep 1
DTW
Detroit
PHL
Philadelphia
$98 Roundtrip, found 18 hours ago
$98
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Mon, Aug 25 from Detroit to Philadelphia, returning Mon, Sep 1, priced at $98 found 18 hours ago
Spirit Airlines
Thu, Aug 14 - Mon, Aug 18
DTW
Detroit
PHL
Philadelphia
$98 Roundtrip, just found
$98
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Aug 14 from Detroit to Philadelphia, returning Mon, Aug 18, priced at $98 just found
Frontier Airlines
Thu, Aug 7 - Sun, Aug 10
DTW
Detroit
PHL
Philadelphia
$103 Roundtrip, just found
$103
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Aug 7 from Detroit to Philadelphia, returning Sun, Aug 10, priced at $103 just found
Frontier Airlines
Thu, Aug 14 - Sun, Aug 17
DTW
Detroit
PHL
Philadelphia
$103 Roundtrip, just found
$103
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Aug 14 from Detroit to Philadelphia, returning Sun, Aug 17, priced at $103 just found
Frontier Airlines
Thu, Aug 7 - Thu, Aug 14
DTW
Detroit
PHL
Philadelphia
$107 Roundtrip, found 18 hours ago
$107
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Thu, Aug 7 from Detroit to Philadelphia, returning Thu, Aug 14, priced at $107 found 18 hours ago
Frontier Airlines
Thu, Aug 7 - Thu, Aug 14
DTW
Detroit
PHL
Philadelphia
$108 Roundtrip, found 16 hours ago
$108
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Thu, Aug 7 from Detroit to Philadelphia, returning Thu, Aug 14, priced at $108 found 16 hours ago
Southwest Airlines
Wed, Oct 29 - Sat, Nov 1
DTW
Detroit
PHL
Philadelphia
$197 Roundtrip, found 1 hour ago
$197
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Wed, Oct 29 from Detroit to Philadelphia, returning Sat, Nov 1, priced at $197 found 1 hour ago
JetBlue Airways
Sat, Sep 6 - Tue, Sep 9
DTW
Detroit
PHL
Philadelphia
$227 Roundtrip, found 1 hour ago
$227
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Sat, Sep 6 from Detroit to Philadelphia, returning Tue, Sep 9, priced at $227 found 1 hour ago
Delta
Wed, Oct 29 - Sat, Nov 1
DTW
Detroit
PHL
Philadelphia
$247 Roundtrip, found 1 hour ago
$247
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Oct 29 from Detroit to Philadelphia, returning Sat, Nov 1, priced at $247 found 1 hour ago

Find the cheapest month to fly from Detroit (DTW) to Philadelphia (PHL)

August is typically the cheapest month to fly

From $40 - $108 per traveler.

Graph displaying average flight prices per month

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to New Castle ILG. Average driving time to city center is 44 minutes. Flights from $299
ILG
New Castle
Average driving time to city center44 min
Flights from $299
Flights from Detroit (DTW) to Philadelphia (PHL)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$97
Distance
452 mi
Average flight time
1 hour 37 mins

Detroit to Philadelphia Flights

The cheapest times to fly from Detroit to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Detroit to Philadelphia are during the month of August. You can find some of the cheapest flights from Detroit to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Detroit to Philadelphia

Sunday is one of the best days to book for cheap flights from Detroit to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Detroit to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Detroit to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $47 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Detroit to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Detroit to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL) cost?
You can find cheap return fares from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL) starting from $64. Book a seat and take off on your trip. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving DTW on August 14 2025 and touching down at PHL. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from DTW to PHL?
The cheapest flights from DTW to PHL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)?
Select from 3 airlines that operate direct flights from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL). Including:

  • Delta Air Lines
  • American Airlines
  • Spirit Airlines

What is the cheapest airline that flies from DTW to PHL?
At the moment, the cheapest airline operating one-way flights from DTW to PHL is Frontier Airlines. You can book a seat on this route from $32. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DTW on September 1 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)?
When taking off from Detroit Metropolitan Wayne County Airport (DTW), you can pick from an average of 7 daily direct flights to Philadelphia Intl. Airport (PHL).
What are the most popular departure times for flights from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)?
More travelers fly between DTW and PHL at 9 PM than at any other point in the day. Prefer a quieter experience? Try choosing a quieter departure window and it's possible you'll save on your ticket as well.
What day of the week has the most flights from DTW to PHL?
Fly on a Monday if you're searching for the biggest selection of flights from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL).
What is the earliest flight from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)?
Detroit Metropolitan Wayne County Airport (DTW)'s earliest flight to Philadelphia Intl. Airport (PHL) departs at approximately 7:00AM UTC-5. With a total flight time of 1h 48m, you'll touch down at around 8:48AM UTC-5.
How long does it take to fly from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)?
The average flight duration from DTW to PHL is 1 hour and 42 minutes, covering a total distance of 450 mi.
What airline has the least delays from DTW to PHL?
Consider booking with Aeromexico if you'd like to go straight from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL) without any delays. This airline has the best track record for punctuality, with an on-time performance of 81%. Want to be updated if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)?
Select a flight from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL) that leaves before 3 PM to reduce the risk of cancellations and delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Philadelphia from Detroit Metropolitan Wayne County Airport (DTW)?
You'll arrive at Philadelphia Intl. Airport (PHL) or Atlantic City Intl. Airport (ACY) when you travel to Philadelphia on a direct flight from Detroit Metropolitan Wayne County Airport (DTW).
Is it cheaper to buy a plane ticket from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your flight from DTW to PHL just before your getaway is generally more expensive. But if there's some wiggle room with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a DTW to PHL flight and hotel package?
You can save money by booking a DTW to PHL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your preferred flights and accommodations, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from Detroit Metropolitan Wayne County Airport (DTW) to Philadelphia Intl. Airport (PHL)?
Typically, it's possible to reschedule or cancel your DTW to PHL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.