Title: Cheap Flights from Trenton (TTN) to Denver (DEN) - Expedia.ca ![Denver Colorado downtown with City Park](https://images.trvl-media.com/place/178254/7cc57818-0302-43a8-831e-86e04b8cc6a7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Trenton (TTN) to Denver (DEN) - [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 Denver International Airport (DEN) - ![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:den,departure:19/10/2025TANYT&leg2=from:den,to:ttn,departure:26/10/2025TANYT&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:den,departure:19/10/2025TANYT&leg2=from:den,to:ttn,departure:26/10/2025TANYT&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) ## Find the cheapest month to fly from Trenton (TTN) to Denver (DEN) ### January is typically the cheapest month to fly From CA $164 - CA $770 per traveller. ## Frequently asked questions ### How much is a flight from Mercer Airport (TTN) to DIA airport? > Round-trip journeys from TTN to Denver Airport start from . This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP so you don't miss out. 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 DIA airport? > When it comes to cancellation fees, each airline has its own set of terms and conditions. If you decide to cancel your trip, visit our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Mercer Airport (TTN) to DEN that have flexible change policies? > Select our "No change fees" filter to find flexible ticketing options for your flight from Mercer Airport (TTN) to DEN. This allows you to secure a low rate ahead of time and still have the freedom to reschedule without any additional fees. You'll just need to pay the difference in fare. ### How many hours is the flight from Trenton–Mercer Airport to Denver Airport? > The average flight time between Trenton–Mercer Airport and DEN is 7 hours and 19 minutes. If you're travelling with kids, it's always a good idea to pack some healthy snacks in your carry-on luggage. ### How far is the flight from Trenton–Mercer Airport to Denver Airport? > It's around 2,500 kilometres from Trenton–Mercer Airport to Denver Intl. Airport (DEN), so expect to be flying for a while. Keep yourself entertained with things like your e-reader or a good old-fashioned book. ### Which airlines fly direct from TTN to Denver Airport? > There are no direct flights, so you'll need to make at least one stop between Trenton–Mercer Airport and DIA airport. Make the most of the layover time to stretch your legs and enjoy some personal space. ### Are Mercer Airport (TTN) to DIA airport flight tickets cheaper when they're purchased at the last minute? > Airline tickets from Mercer Airport (TTN) to DIA airport are available up to a year prior to departure on Expedia. And although you may score fantastic last-minute deals, it's never something you can count on. Also, booking your flights ahead of time means you'll have more options — and you can avoid being wedged in the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials. ## Travel information | Origin airport | Mercer | | --- | --- | | Destination airport | Denver Intl. | | Distance | 2514 km | ## Book with confidence ### Trenton to Denver Flights **The easy way to book your flights from Trenton to Denver**  With Expedia, it’s simple to find and book flights to Denver 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 Denver Intl., 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 Denver today, tomorrow, or this week.   **Save dollars with cheap flights from Mercer, TTN to Denver Intl., DEN**  Sort your search results by price to find great deals on your flight from Trenton to Denver—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Denver 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 Denver   - 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 Denver 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. 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