Your next trip, last seen at €32
Lowest observedFrontier Airlines · Non-stop · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €32, departing 16 Nov 2026 (Last checked: 6 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 86Check live prices for this route
- Airlines seen
- Frontier Airlines, United Airlines
- Reported fastest flight
- 1h 37m
- Non-stop
- Yes
About this route
Explore the fares we observed from Detroit to Philadelphia. Prices move often, so pick your dates to see the latest options.
- Route distance
- 711 km
- Reported fastest flight
- 1h 37m
- Airlines seen
- Frontier Airlines, United Airlines
- Alternative airports
- DET, YIP, TTN
Route-level information; individual journeys vary.
Published schedules report non-stop service with Delta Air Lines. Check current timetables.
A clearer picture of your fare
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| Frontier Airlines | 24 / 86 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Detroit Metropolitan Wayne County Airport (DTW) → Detroit, city gazetteer reference point (42.3314, -83.0458): ≈ 29 km.
- Philadelphia International Airport (PHL) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 11 km.
- Trenton Mercer Airport (TTN) → Philadelphia, city gazetteer reference point (39.9523, -75.1638): ≈ 47 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Detroit to Philadelphia: November 2026, from €32 (checked 6 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €52 | 19 |
| November 2026 | €32 | 30 |
| December 2026 | €63 | 30 |
| January 2027 | €70 | 7 |
Lowest fare by day of the week
Cheapest day of the week from Detroit to Philadelphia: Monday, from €32 (checked 6 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €32 | 12 |
| Tuesday | €61 | 13 |
| Wednesday | €68 | 13 |
| Thursday | €32 | 12 |
| Friday | €33 | 13 |
| Saturday | €77 | 11 |
| Sunday | €52 | 12 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Detroit to Philadelphia by days until departure (8 to 30 days): €32 (checked 6 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €98 | 8 |
| 8 to 30 days | €32 | 23 |
| 31 to 60 days | €32 | 30 |
| 61 days or more | €68 | 25 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Detroit to Philadelphia?
The lowest fare we have observed is €32, found on 6 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Detroit to Philadelphia?
Cheapest month from Detroit to Philadelphia: November 2026, from €32 (checked 6 Oct 2026).
Are there direct flights from Detroit to Philadelphia?
Yes. We have seen non-stop flights on this route, flown by Delta Air Lines.
Which airlines fly from Detroit to Philadelphia?
These are the carriers we have seen on the route: Frontier Airlines, United Airlines.
How long does the flight from Detroit to Philadelphia take?
The average journey time across the 87 fares we observed is 8h 34m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Detroit to Philadelphia fares were non-stop?
29 of the 91 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which airlines had non-stop offers on at least 3 departure dates from Detroit to Philadelphia?
For Detroit to Philadelphia, examples of observed one-way non-stop offers checked within the last 14 days: Frontier Airlines (24). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which day of the week is cheapest from Detroit to Philadelphia?
Cheapest day of the week from Detroit to Philadelphia: Monday, from €32 (checked 6 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 13 Oct 2026