$103 Cheap Flights from Trenton (TTN) to Detroit (DTW)

View $103 flight on Thu, Nov 27, 2025Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW)

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Cheap Flights from Trenton to Detroit (TTN-DTW)

Prices were available within the past 7 days and start at $103 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 12 - Sat, Aug 23
TTN
Trenton
DTW
Detroit
$208 Roundtrip, just found
$208
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Aug 12 from Trenton to Detroit, returning Sat, Aug 23, priced at $208 just found
Frontier Airlines
Thu, Aug 14 - Sat, Aug 23
TTN
Trenton
DTW
Detroit
$218 Roundtrip, just found
$218
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Aug 14 from Trenton to Detroit, returning Sat, Aug 23, priced at $218 just found
Frontier Airlines
Fri, Oct 31 - Mon, Nov 3
TTN
Trenton
DTW
Detroit
$228 Roundtrip, just found
$228
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 31 from Trenton to Detroit, returning Mon, Nov 3, priced at $228 just found
American Airlines
Sat, Oct 11 - Tue, Oct 14
TTN
Trenton
DTW
Detroit
$246 Roundtrip, found 2 hours ago
$246
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Oct 11 from Trenton to Detroit, returning Tue, Oct 14, priced at $246 found 2 hours ago
Frontier Airlines
Tue, Aug 12 - Sun, Aug 24
TTN
Trenton
DTW
Detroit
$248 Roundtrip, just found
$248
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Aug 12 from Trenton to Detroit, returning Sun, Aug 24, priced at $248 just found
American Airlines
Sat, Oct 4 - Tue, Oct 7
TTN
Trenton
DTW
Detroit
$256 Roundtrip, found 2 days ago
$256
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 4 from Trenton to Detroit, returning Tue, Oct 7, priced at $256 found 2 days ago
Frontier Airlines
Fri, Aug 22 - Sun, Aug 24
TTN
Trenton
DTW
Detroit
$258 Roundtrip, just found
$258
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Aug 22 from Trenton to Detroit, returning Sun, Aug 24, priced at $258 just found
American Airlines
Fri, Oct 17 - Tue, Oct 21
TTN
Trenton
DTW
Detroit
$266 Roundtrip, found 10 hours ago
$266
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Oct 17 from Trenton to Detroit, returning Tue, Oct 21, priced at $266 found 10 hours ago
American Airlines
Sat, Oct 4 - Tue, Oct 7
TTN
Trenton
DTW
Detroit
$272 Roundtrip, found 2 days ago
$272
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 4 from Trenton to Detroit, returning Tue, Oct 7, priced at $272 found 2 days ago
American Airlines
Sat, Oct 4 - Tue, Oct 7
TTN
Trenton
DTW
Detroit
$282 Roundtrip, found 2 days ago
$282
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 4 from Trenton to Detroit, returning Tue, Oct 7, priced at $282 found 2 days ago

Alternative airports near Detroit

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

Select flight to Detroit Metropolitan Wayne County DTW. Cheapest option available. Average driving time to city center is 26 minutes. Flights from $208
DTW
Detroit Metropolitan Wayne County
Cheapest
Average driving time to city center26 min
Flights from $208
Flights from Trenton (TTN) to Detroit (DTW)
Origin airport
Mercer
Destination airport
Detroit Metropolitan Wayne County
Airlines serving
American Airlines, Frontier Airlines
Roundtrip price
$208
Distance
462 mi

Trenton to Detroit Flights

The cheapest times to fly from Trenton to Detroit

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 Trenton to Detroit are during the month of August. You can find some of the cheapest flights from Trenton to Detroit with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trenton to Detroit

Sunday is one of the best days to book for cheap flights from Trenton to Detroit: 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 Trenton to Detroit

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 Trenton to Detroit in 2025. You can also book with separate airlines for your outbound and return journeys, from $103 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 Trenton to Detroit 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 Trenton to Detroit 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 Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW) cost?
Discover the latest flight deals from TTN to DTW by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TTN to DTW?
The cheapest flights from TTN to DTW 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 Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW)?
There aren't any direct flights from Trenton, NJ (TTN-Mercer) to Detroit Metropolitan Wayne County Airport (DTW). However, you'll find other airports that offer nonstop flights. Hop on your plane at Liberty Intl. Airport (EWR) and head straight to Detroit without a layover.
What is the cheapest airline that flies from TTN to DTW?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TTN to DTW. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW)?
Nonstop flights from Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TTN to DTW?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW)?
To avoid possible delays on the Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW) route, travel before 3 PM. Departures after this hour are 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.
Is it cheaper to buy a plane ticket from Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW) last-minute?
Holding off until right before your break to book a flight from TTN to DTW generally means paying more. While it's possible to find some last-minute deals, there's no guarantee. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a TTN to DTW flight and hotel package?
You'll generally save money by securing a TTN to DTW flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your preferred flights and accommodations, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW)?
If you booked your TTN to DTW flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.