$104 Cheap Frontier Airlines flights Detroit (DTW) to Trenton (TTN)

View $104 flight on Sat, Aug 23, 2025Opens in a new window

$104 Cheap Frontier Airlines flights Detroit (DTW) to Trenton (TTN)

Prices were available within the past 7 days and start at $104 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
Wed, Aug 13 - Wed, Aug 20
DTW
Detroit
TTN
Trenton
$208 Roundtrip, found 18 hours ago
$208
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Wed, Aug 13 from Detroit to Trenton, returning Wed, Aug 20, priced at $208 found 18 hours ago
Frontier Airlines
Sat, Oct 25 - Thu, Oct 30
DTW
Detroit
TTN
Trenton
$213 Roundtrip, just found
$213
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Oct 25 from Detroit to Trenton, returning Thu, Oct 30, priced at $213 just found
Frontier Airlines
Fri, Oct 10 - Mon, Oct 13
DTW
Detroit
TTN
Trenton
$223 Roundtrip, just found
$223
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 10 from Detroit to Trenton, returning Mon, Oct 13, priced at $223 just found
Frontier Airlines
Sat, Aug 23 - Fri, Aug 29
DTW
Detroit
TTN
Trenton
$243 Roundtrip, found 4 days ago
$243
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Detroit to Trenton, returning Fri, Aug 29, priced at $243 found 4 days ago
Frontier Airlines
Thu, Aug 14 - Wed, Aug 20
DTW
Detroit
TTN
Trenton
$248 Roundtrip, found 18 hours ago
$248
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Thu, Aug 14 from Detroit to Trenton, returning Wed, Aug 20, priced at $248 found 18 hours ago
Frontier Airlines
Fri, Oct 10 - Sun, Oct 12
DTW
Detroit
TTN
Trenton
$253 Roundtrip, just found
$253
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 10 from Detroit to Trenton, returning Sun, Oct 12, priced at $253 just found
Flights from Detroit (DTW) to Trenton (TTN)
Origin airport
Detroit Metropolitan Wayne County
Destination airport
Mercer
Airlines serving
American Airlines, Frontier Airlines
Popular airline
American Airlines
Distance
462 mi

Frequently asked questions

How much is a Frontier Airlines flight from Detroit Metropolitan Wayne County Airport (DTW) to Mercer Airport (TTN)?
Grab cheap round-trip Frontier Airlines flights from $208 from DTW to TTN by filtering your results from "Price (lowest to highest)" on Expedia. Or look for deals from $104 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DTW to TTN with Frontier Airlines?
Frontier Airlines flights to Trenton are often cheaper in the low-season months of February and January. Whether you need a return or one-way ticket, you could land a better deal then.
What is the cheapest time to book flights from Detroit Metropolitan Wayne County Airport (DTW) to Mercer Airport (TTN) with Frontier Airlines?
Search for affordable Frontier Airlines flights from Detroit Metropolitan Wayne County Airport (DTW) to Mercer Airport (TTN) one to three months ahead of your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Detroit Metropolitan Wayne County Airport (DTW) to Mercer Airport (TTN)?
Use the "Nonstop" filter when looking for direct Frontier Airlines flights from DTW to TTN. You'll also be able to compare other airlines servicing the same direct trip.
What is the earliest Frontier Airlines flight from DTW to TTN?
To find the earliest departure from DTW to TTN with Frontier Airlines, filter your results by "Morning" and "Early Morning." Choosing an early flight generally means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Trenton?
Frontier Airlines flights from Detroit Metropolitan Wayne County Airport (DTW) to Trenton touch down at Mercer Airport (TTN). This is the main entry point to this city.
Why fly with Frontier Airlines from DTW to TTN?
Journey from DTW to TTN with Frontier Airlines and enjoy a host of benefits including a rewarding loyalty program. When booking through Expedia as a Frontier Miles and One Key™ member, you may also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Frontier Airlines flight from Detroit Metropolitan Wayne County Airport (DTW) to Mercer Airport (TTN)?
Depending on your fare type, a fee may apply if you cancel or change your booking more than 24 hours after it's confirmed. To secure tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when you search for flights. For more information on changing or canceling your reservation, go to "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.