What is the cheapest airline that flies from Philadelphia to Detroit?

Frontier is the most popular carrier operating from Philadelphia to Detroit

How many flights depart from Philadelphia to Detroit on average per day?

The number of flights available between Philadelphia and Detroit is 20 per day as of November 2025. The most frequent departure time is 12:00PM, with 47% of daily flights leaving in the afternoon.

How many flights depart from Philadelphia to Detroit on average per week?

The number of flights available between Philadelphia and Detroit is 143 per week as of November 2025. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.

What airlines fly to Detroit?

Spirit Airlines, Delta and American Airlines are the top three most popular airlines that fly to Detroit from Philadelphia according to our data. Spirit Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Detroit. Keep in mind that there are 6 different airlines that fly to Detroit on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Philadelphia Airport to Detroit?

Prices for flights from Philadelphia Airport to Detroit were last updated today.

How many operators does momondo search for flights from Philadelphia Airport to Detroit?

There are 4 operators available for flights from Philadelphia Airport to Detroit as of November 2025.

How old do you have to be to fly from Philadelphia Airport to Detroit?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Detroit.

What documentation or ID do you need to fly to Detroit?

The required travel and health documents for your Detroit trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Detroit. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$55 Cheap Flights from Philadelphia to Detroit in 2025/26

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Find the cheapest flights from Philadelphia to Detroit

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:54 pm - 3:47 pmPHL-DTW

1h 53mnonstop

5:49 pm - 12:40 amDTW-PHL

6h 51m1 stop

$151Frontier

Find Deal

Tue, Dec 23 - Wed, Dec 31

1:54 pm - 3:47 pmPHL-DTW

1h 53mnonstop

12:15 pm - 10:11 pmDTW-PHL

9h 56m1 stop

$152Frontier

Find Deal

Tue, Dec 23 - Sun, Jan 4

1:35 pm - 3:28 pmPHL-DTW

1h 53mnonstop

7:20 pm - 12:42 amDTW-PHL

5h 22m1 stop

$161Frontier

Find Deal

Fri, Dec 19 - Sun, Dec 21

5:10 am - 10:53 amPHL-DTW

5h 43m1 stop

5:49 pm - 12:40 amDTW-PHL

6h 51m1 stop

$162Frontier

Find Deal

Mon, Dec 22 - Wed, Dec 31

10:00 pm - 7:30 pmPHL-DTW

21h 30m1 stop

6:25 am - 12:13 amDTW-PHL

17h 48m1 stop

$163Frontier

Find Deal

Sat, Dec 20 - Mon, Dec 22

6:30 am - 11:20 amPHL-DTW

4h 50m1 stop

12:15 pm - 10:11 pmDTW-PHL

9h 56m1 stop

$164Frontier

Find Deal

Tue, Dec 23 - Sun, Jan 4

1:54 pm - 3:47 pmPHL-DTW

1h 53mnonstop

7:20 pm - 12:42 amDTW-PHL

5h 22m1 stop

$165Frontier

Find Deal

Sat, Dec 20 - Sun, Dec 21

1:54 pm - 3:47 pmPHL-DTW

1h 53mnonstop

4:23 pm - 6:03 pmDTW-PHL

1h 40mnonstop

$166Frontier

Find Deal

Tue, Dec 30 - Fri, Jan 2

4:00 pm - 10:08 amPHL-DTW

18h 08m1 stop

2:28 pm - 9:17 amDTW-PHL

18h 49m1 stop

$167Multiple Airlines

Find Deal

Tue, Dec 9 - Sun, Dec 14

5:30 am - 5:53 pmPHL-DTW

12h 23m1 stop

11:07 am - 6:38 pmDTW-PHL

7h 31m1 stop

$168Multiple Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

Frontier flights from Philadelphia to Detroit

Our best Frontier deals on Philadelphia to Detroit flight tickets

Frontier

Dec 23

PHL1:54 pmPhiladelphia

1h 53m

DTW3:47 pmDetroit Metropolitan Wayne County

Dec 31

DTW5:49 pmDetroit Metropolitan Wayne County

6h 51m

1 stop

PHL12:40 amPhiladelphia

$151

Find similar

Frontier

Dec 23

PHL1:54 pmPhiladelphia

1h 53m

DTW3:47 pmDetroit Metropolitan Wayne County

Jan 4

DTW12:15 pmDetroit Metropolitan Wayne County

9h 56m

1 stop

PHL10:11 pmPhiladelphia

$152

Find similar

Frontier

Dec 19

PHL1:35 pmPhiladelphia

1h 53m

DTW3:28 pmDetroit Metropolitan Wayne County

Dec 21

DTW7:20 pmDetroit Metropolitan Wayne County

5h 22m

1 stop

PHL12:42 amPhiladelphia

$161

Find similar

Spirit Airlines flights from Philadelphia to Detroit

Our best Spirit Airlines deals on Philadelphia to Detroit flight tickets

Spirit Airlines

Dec 6

PHL4:00 pmPhiladelphia

16h 07m

2 stops

DTW8:07 amDetroit Metropolitan Wayne County

Dec 10

DTW2:50 pmDetroit Metropolitan Wayne County

18h 27m

2 stops

PHL9:17 amPhiladelphia

$169

Find similar

Spirit Airlines

Dec 5

PHL5:30 amPhiladelphia

12h 23m

1 stop

DTW5:53 pmDetroit Metropolitan Wayne County

Dec 8

DTW2:50 pmDetroit Metropolitan Wayne County

23h 54m

2 stops

PHL2:44 pmPhiladelphia

$171

Find similar

Spirit Airlines

Dec 6

PHL4:00 pmPhiladelphia

8h 19m

1 stop

DTW12:19 amDetroit Metropolitan Wayne County

Dec 10

DTW2:50 pmDetroit Metropolitan Wayne County

18h 27m

2 stops

PHL9:17 amPhiladelphia

$183

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Tue 12/23

1:54 pm-3:47 pm

Nonstop1h 53m

Detroit Metropolitan Wayne County

Wed 12/31

5:49 pm-12:40 am

1 stop6h 51m

$151

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Tue 12/23

1:54 pm-3:47 pm

Nonstop1h 53m

Detroit Metropolitan Wayne County

Sun 1/4

12:15 pm-10:11 pm

1 stop9h 56m

$152

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Fri 12/19

1:35 pm-3:28 pm

Nonstop1h 53m

Detroit Metropolitan Wayne County

Sun 12/21

7:20 pm-12:42 am

1 stop5h 22m

$161

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Mon 12/22

5:10 am-10:53 am

1 stop5h 43m

Detroit Metropolitan Wayne County

Wed 12/31

5:49 pm-12:40 am

1 stop6h 51m

$162

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Sat 12/20

10:00 pm-7:30 pm

1 stop21h 30m

Detroit Metropolitan Wayne County

Mon 12/22

6:25 am-12:13 am

1 stop17h 48m

$163

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Tue 12/23

6:30 am-11:20 am

1 stop4h 50m

Detroit Metropolitan Wayne County

Sun 1/4

12:15 pm-10:11 pm

1 stop9h 56m

$164

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Sat 12/20

1:54 pm-3:47 pm

Nonstop1h 53m

Detroit Metropolitan Wayne County

Sun 12/21

7:20 pm-12:42 am

1 stop5h 22m

$165

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Tue 12/30

1:54 pm-3:47 pm

Nonstop1h 53m

Detroit Metropolitan Wayne County

Fri 1/2

4:23 pm-6:03 pm

Nonstop1h 40m

$166

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Tue 12/9

4:00 pm-10:08 am

1 stop18h 08m

Detroit Metropolitan Wayne County

Sun 12/14

2:28 pm-9:17 am

1 stop18h 49m

$167

PhiladelphiaDetroit

PHL - DTW

PHLDTW

Philadelphia

Fri 12/5

5:30 am-5:53 pm

1 stop12h 23m

Detroit Metropolitan Wayne County

Mon 12/8

11:07 am-6:38 pm

1 stop7h 31m

$168

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Detroit

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Detroit?

The cheapest month to fly to Detroit from Philadelphia is in January. Flight prices, which tend to average around $139, are often lower during this time because this is during the off-season. If you’re not able to fly to Detroit in January, then December is your next best option. Flight prices from Philadelphia to Detroit during December average around $174.

What is the cheapest day to depart on your flight to Detroit?

On average, the least expensive day to fly to Detroit from Philadelphia is on a Thursday. momondo users have found tickets for Thursday departures for as low as $292. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to Detroit for around $468.

What is the cheapest time of day to depart on your flight to Detroit?

At noon is the cheapest time of day to fly from Philadelphia to Detroit when you can find flight prices for as low as $322. Flying to Detroit at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $399 on average. Flights to Detroit from Philadelphia in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Philadelphia to Detroit flight route?

Fly from Philadelphia to Detroit Metropolitan Wayne County for the best Philadelphia - Detroit flight prices

How far in advance should I book a flight to Detroit?

You are more likely to see cheaper flights to Detroit from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit for around $254 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit from Philadelphia for as low as $189 on momondo.

What cabin class options are available on Philadelphia to Detroit flights?

There are 4 cabin classes available to choose from on Philadelphia to Detroit flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Philadelphia to Detroit flight prices changed over time?

As of November 2025, prices for Philadelphia to Detroit flights are approximately 61% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to Detroit

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Detroit according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Detroit (PHL to DTT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Detroit

Best Price Found	$138
Fastest flight time	1h 43m
Direct flights	Every day
Airports in Detroit	1 airport

The best one-way flight to Detroit from Philadelphia in the past 72 hours is $138. The best round-trip flight deal from Philadelphia to Detroit found on momondo in the last 72 hours is $258.

The fastest flight from Philadelphia to Detroit takes 1h 43m

Direct flights go from Philadelphia to Detroit every day.

There is 1 airport near Detroit: Detroit Metropolitan Wayne County (DTW)

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How far is Philadelphia to Detroit by plane?
Detroit is 442.2 mi away from Philadelphia. Typically, this will take 1h 48m by plane in normal conditions.
When did momondo last update prices for flights from Philadelphia Airport to Detroit?
Prices for flights from Philadelphia Airport to Detroit were last updated today.
How many operators does momondo search for flights from Philadelphia Airport to Detroit?
There are 4 operators available for flights from Philadelphia Airport to Detroit as of November 2025.
How old do you have to be to fly from Philadelphia Airport to Detroit?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Detroit.
What documentation or ID do you need to fly to Detroit?
The required travel and health documents for your Detroit trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Detroit. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Philadelphia to Detroit?
momondo data reveals that the most frequently booked plane model on the route from Philadelphia to Detroit is Airbus A320-100/200, representing 17.66% of all bookings. The subsequent popular models are Boeing 717-200 at 15.86%, Airbus A319 at 12.64%, and Canadair (Bombardier) Regional Jet 900 at 11.05%.
What is the most popular airline from Philadelphia to Detroit?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to Detroit is Spirit Airlines, representing 36% of all bookings. The subsequent popular airlines are Delta at 32%, American Airlines at 26%, and Frontier at 6%.

Best airlines flying from Philadelphia to Detroit

Compare and see reviews for airlines that fly from Philadelphia to Detroit with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $66	Free Cancellation	Rating 6.3 8,160 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $79	Free Cancellation	Rating 5.8 3,100 reviews	Search Frontier flights
Delta	PriceFrom $159	Free Cancellation	Rating 7.9 7,999 reviews	Search Delta flights
American Airlines	PriceFrom $198	Free Cancellation	Rating 7.2 11,046 reviews	Search American Airlines flights

Delta Flights From Philadelphia to Detroit
Delta flight deals from Philadelphia to Detroit start from $159 round-trip. Over the 26 Delta flights for this route in a normal week, average airfare is usually $322 round-trip - but some users have found much cheaper deals with momondo.
American Airlines Flights From Philadelphia to Detroit
American Airlines (7.2/10 from 11,047 reviews) operates around 15 flights from Philadelphia to Detroit in any given week. The average American Airlines airfare for this route is around $312, with deals from around $198 rare but found on momondo. Referenced prices are for round-trip Philadelphia to Detroit flight searches in the last 72 hours.

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Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Detroit?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Detroit from Philadelphia.

Can I find flights from Philadelphia to Detroit with flexible booking policies on momondo?

All flight searches from Philadelphia to Detroit on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Philadelphia to Detroit?

momondo helps you find the best flight between Philadelphia and Detroit by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Philadelphia to Detroit right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to Detroit flights. All you need is a valid email address and we will do the rest; it is that quick and easy.