Title: Cheap Flights from Trenton (TTN) to Detroit (DTW) - Expedia.ca ![Detroit showing a city, a square or plaza and outdoor art](https://images.trvl-media.com/place/178255/90353297-2ee3-4668-84bf-f76c7fce8f7b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178255/90353297-2ee3-4668-84bf-f76c7fce8f7b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Trenton (TTN) to Detroit (DTW) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Trenton–Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ttn,to:dtw,departure:16/11/2025TANYT&leg2=from:dtw,to:ttn,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:ttn,to:dtw,departure:16/11/2025TANYT&leg2=from:dtw,to:ttn,departure:23/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from Trenton to Detroit (TTN - DTW) route information | Origin airport | Mercer | | --- | --- | | Destination airport | Detroit Metropolitan Wayne County | | Distance | 740 km | ## Trenton to Detroit Flights **The easy way to book your flights from Trenton to Detroit**  With Expedia, it’s simple to find and book flights to Detroit from Trenton whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Detroit Metropolitan Wayne County, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Trenton to Detroit today, tomorrow, or this week.   **Save dollars with cheap flights from Mercer, TTN to Detroit Metropolitan Wayne County, DTW**  Sort your search results by price to find great deals on your flight from Trenton to Detroit—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Detroit from Trenton currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Detroit   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Detroit from Trenton**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Detroit with Expedia today. ## Frequently asked questions ### How much is a flight from Mercer Airport (TTN) to DTW? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey between Mercer Airport (TTN) and DTW was . Cheap fares don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from TTN to DTW? > The majority of flights can be cancelled online, but whether or not you are charged a fee varies between airlines. If you do need to cancel your escape, follow the easy instructions in the [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Mercer Airport (TTN) to Detroit Metropolitan Wayne County Airport (DTW) that have flexible change policies? > Select our "No change fees" filter to find flexible travel options for your flight from TTN to Detroit Metro Airport. This allows you to secure a good price in advance and still have the freedom to reschedule without any extra fees. Just keep in mind that fare differences may still apply. ### How many hours is the flight from TTN to Detroit Metropolitan Wayne County Airport (DTW)? > Lasting around 5 hours and 46 minutes, the flight between Trenton–Mercer Airport and Metro Airport is a great opportunity to do some last-minute trip planning. Why not use some of this time to read up on what to do in Detroit? ### How far is the flight from Trenton–Mercer Airport to Metro Airport? > It's just 750 kilometres between Trenton and Detroit. It's quite possible that you'll spend more time travelling to and from the airport than you will actually flying! ### Which airlines fly direct from Trenton–Mercer Airport to Detroit Metropolitan Wayne County Airport (DTW)? > A favourite with many frequent flyers, Frontier Airlines (F9) offers 0 flights every month from Trenton–Mercer Airport to DTW. Pick the one that fits in with your travel plans and book your fare today. ### Are Mercer Airport (TTN) to Detroit Metro Airport flight tickets cheaper when they're purchased at the last minute? > It is possible to get an amazing last-minute deal from TTN to DTW, but it's also possible to miss out entirely! As many airlines publish prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a bargain. 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