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$38+ Cheap flights from Michigan to Philadelphia (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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — PHL
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Cheap flight deals from Michigan to Philadelphia

Cheapest flights from Michigan to Philadelphia
Explore the most affordable flight options available from Michigan to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/20. 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 9/148:30 am
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Fri 10/24:44 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/20$68
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 9/288:30 am
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Fri 10/237:58 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/20$69
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 8/171:26 pm
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Mon 8/3111:11 am
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/16$77
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 10/58:00 am
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Fri 10/237:58 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/19$78
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Fri 10/92:03 pm
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Mon 10/124:42 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/16$82
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/101:26 pm
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Fri 8/144:07 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/18$83
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/101:26 pm
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Mon 8/174:07 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/17$88
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Fri 8/288:15 am
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Mon 8/3111:11 am
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/16$89
This Trip.com deal was found by Cheapflights users on 7/17. 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.
Fri 8/71:26 pm
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Mon 8/104:07 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/17$90
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 7/272:57 pm
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Mon 8/104:07 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/18$100
This FlightHub deal was found by Cheapflights users on 7/19. 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.
Fri 8/218:15 am
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Fri 8/2810:56 am
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/19$102
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/32:57 pm
GRR
-
PHL
Nonstop1h 51m
Allegiant Air
Mon 8/104:07 pm
PHL
-
GRR
Nonstop2h 05m
Allegiant Air
Deal found 7/17$105

Find flight deals from Michigan to Philadelphia

Keep the following information in mind while searching for Michigan to Philadelphia flight deals. Data was last updated July 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$68
(Kiwi.com)

One-way from

$38
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$299

Good round-trip deal

$114 or less

Good one-way deal

$93 or less
Provider with most accurate pricing for Detroit (DTT)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Philadelphia flights.
Search Deals
From Michigan to Philadelphia
Search Deals
One-way flight from Michigan to Philadelphia
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Michigan to Philadelphia.
Search Deals
Price to beat on a one-way flight from Michigan to Philadelphia.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Michigan 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 July 21, 2026.
Use the filters below to find and compare flights from Michigan to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Fri 9/18

2:02 pm-3:35 pm

Nonstop1h 33m

Philadelphia

Mon 9/28

8:25 am-10:04 am

Nonstop1h 39m

$209

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 9/2

11:01 am-8:01 pm

1 stop8h 00m

Philadelphia

Wed 9/9

10:45 am-7:22 pm

1 stop9h 37m

$229

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 10/16

9:38 am-5:59 pm

1 stop7h 21m

Philadelphia

Sat 10/17

10:45 am-7:22 pm

1 stop9h 37m

$229

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 9/12

9:38 am-6:04 pm

1 stop7h 26m

Philadelphia

Mon 9/14

10:45 am-7:22 pm

1 stop9h 37m

$229

DetroitPhiladelphia

DTW - PHL

DTWPHL

Detroit Metropolitan Wayne County

Sat 8/29

10:18 am-10:59 pm

1 stop12h 41m

Philadelphia

Tue 9/1

8:15 am-6:15 pm

1 stop10h 00m

$239

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Thu 8/20

1:00 pm-4:00 pm

Nonstop2h 00m

Philadelphia

Mon 8/24

6:05 pm-7:10 pm

Nonstop2h 05m

$257

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 8/18

9:05 am-12:23 pm

Nonstop2h 18m

Philadelphia

Tue 8/25

8:20 am-9:45 am

Nonstop2h 25m

$287

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Tue 8/18

3:00 pm-6:00 pm

Nonstop2h 00m

Philadelphia

Tue 9/8

6:25 pm-7:30 pm

Nonstop2h 05m

$287

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 9/30

9:07 am-12:25 pm

Nonstop2h 18m

Philadelphia

Wed 9/30

6:55 pm-8:25 pm

Nonstop2h 30m

$287

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Sat 10/24

8:00 am-11:00 am

Nonstop2h 00m

Philadelphia

Tue 10/27

11:25 am-12:30 pm

Nonstop2h 05m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/18

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Michigan to Philadelphia

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

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

Currently, August is the cheapest month in which you can book a flight from Michigan to Philadelphia (average of $241). Flying from Michigan to Philadelphia in March is currently the most expensive (average of $402). 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 MI to PHL?

Find hourly flight availability from Michigan 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 July 21, 2026.

It’s typically best to fly out from Michigan to Philadelphia in the morning. Doing so could potentially save you 39% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Michigan to Philadelphia

Explore weekly flight availability from Michigan 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 July 21, 2026.

The most flights from USMI to PHL are scheduled on a Monday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

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

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

Booking 53 days in advance of your planned departure date is, on average, the best time to get cheap flights from Michigan 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 day to fly from Michigan to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Michigan to Philadelphia. Price data was last updated on July 18, 2026.

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

Related info for your journey

Find useful and relevant information for your journey from Michigan to Philadelphia. 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 Philadelphia from Michigan?

    If you book a flight to Philadelphia from Michigan, you will be flying to Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia.

  • How long is the flight from Michigan to Philadelphia?

    Departing from Michigan to Philadelphia will take you 1h 33m. Michigan and Philadelphia are separated by 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 to fly from Michigan to Philadelphia one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $39. Users have also found prices from $42 and $89 on Frontier and Delta, respectively.

  • What are the most popular routes from Michigan to Philadelphia?

    The most popular flight routes from Michigan to Philadelphia are Chicago O'Hare Intl - Philadelphia, Detroit Metropolitan Wayne County - Philadelphia and Chicago Midway - Philadelphia.

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

    No one likes to see their flight delayed. When booking a flight from Michigan to Philadelphia consider choosing Piedmont Airlines (90%), Alaska Airlines (80%) or Aer Lingus (75%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Michigan to Philadelphia?

    Looking at all options, your cheapest flight can be booked for $105. While the most popular route (Chicago O'Hare Intl - Philadelphia) can be booked for $152 on average, our data indicates $1,063 when flying from Michigan to Philadelphia.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Michigan to Philadelphia (average of $241). Flying from Michigan to Philadelphia in March is currently the most expensive (average of $402). 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
Wildwood
King of Prussia
Reading
Camden
Ocean City
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Wildwood Crest
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Vineland

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Michigan to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Michigan to Philadelphia

Discover the top 6 airlines that operate flights from Michigan 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 July 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$234FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$64Average$98FlexibilityNo cancel feeOn-time88%
DeltaCheapest$168Average$398FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$204Average$393FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$374FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$440FlexibilityNo cancel feeOn-time63%

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