$80 Cheap Flights from Trenton (TTN) to Denver (DEN)

View $80 flight on Wed, Mar 4, 2026Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Denver Intl. Airport (DEN)

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Cheap Flights from Trenton to Denver (TTN-DEN)

Prices were available within the past 7 days and start at $80 for one-way flights and $192 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Feb 23 - Sat, Feb 28
TTN
Trenton
DEN
Denver
$192 Roundtrip, found 2 hours ago
$192
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Feb 23 from Trenton to Denver, returning Sat, Feb 28, priced at $192 found 2 hours ago
Frontier Airlines
Thu, Jan 15 - Tue, Jan 20
TTN
Trenton
DEN
Denver
$195 Roundtrip, found 6 hours ago
$195
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Jan 15 from Trenton to Denver, returning Tue, Jan 20, priced at $195 found 6 hours ago
American Airlines
Sat, Feb 14 - Wed, Feb 18
TTN
Trenton
DEN
Denver
$197 Roundtrip, found 12 hours ago
$197
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Trenton to Denver, returning Wed, Feb 18, priced at $197 found 12 hours ago
Frontier Airlines
Thu, Feb 5 - Sat, Feb 14
TTN
Trenton
DEN
Denver
$200 Roundtrip, found 5 hours ago
$200
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Feb 5 from Trenton to Denver, returning Sat, Feb 14, priced at $200 found 5 hours ago
Frontier Airlines
Mon, Feb 23 - Fri, Mar 6
TTN
Trenton
DEN
Denver
$210 Roundtrip, found 2 days ago
$210
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Feb 23 from Trenton to Denver, returning Fri, Mar 6, priced at $210 found 2 days ago
Frontier Airlines
Sat, Jan 17 - Sat, Jan 24
TTN
Trenton
DEN
Denver
$211 Roundtrip, found 7 hours ago
$211
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Jan 17 from Trenton to Denver, returning Sat, Jan 24, priced at $211 found 7 hours ago
Frontier Airlines
Thu, Jan 8 - Sat, Jan 10
TTN
Trenton
DEN
Denver
$213 Roundtrip, found 2 hours ago
$213
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Jan 8 from Trenton to Denver, returning Sat, Jan 10, priced at $213 found 2 hours ago
Frontier Airlines
Thu, Jan 15 - Tue, Jan 20
TTN
Trenton
DEN
Denver
$216 Roundtrip, found 6 hours ago
$216
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Jan 15 from Trenton to Denver, returning Tue, Jan 20, priced at $216 found 6 hours ago
Frontier Airlines
Sat, Jan 17 - Tue, Jan 20
TTN
Trenton
DEN
Denver
$219 Roundtrip, found 6 hours ago
$219
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Jan 17 from Trenton to Denver, returning Tue, Jan 20, priced at $219 found 6 hours ago
Frontier Airlines
Thu, Feb 26 - Wed, Mar 4
TTN
Trenton
DEN
Denver
$221 Roundtrip, found 12 hours ago
$221
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, Feb 26 from Trenton to Denver, returning Wed, Mar 4, priced at $221 found 12 hours ago

Find the cheapest month to fly from Trenton (TTN) to Denver (DEN)

March is typically the cheapest month to fly

From $120 - $720 per traveler.

Alternative airports near Denver

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

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $314
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $314
Flights from Trenton (TTN) to Denver (DEN)
Origin airport
Mercer
Destination airport
Denver Intl.
Airlines serving
American Airlines, Frontier Airlines
Roundtrip price
$192
Distance
1571 mi

Trenton to Denver Flights

The cheapest times to fly from Trenton to Denver

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

 

The best time to book a flight from Trenton to Denver

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

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 Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $80 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 Denver 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 Denver 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 Denver Intl. Airport (DEN) cost?
Get a cheap one-way flight from $80 or cheap return flight from $192 from Mercer Airport (TTN) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Denver Intl. Airport (DEN)?
Traveling in February is a good way to save, as it's the cheapest month for flights between TTN and DEN. You'll typically find the lowest prices during the off-season.
Which airlines fly direct from Mercer Airport (TTN) to Denver Intl. Airport (DEN)?
Direct flights aren't available from Trenton, NJ (TTN-Mercer) to Denver Intl. Airport (DEN). However, you'll find other airports offering nonstop flights. Begin your journey at Liberty Intl. Airport (EWR) and travel straight to Denver without a layover.
What is the cheapest airline that flies from Mercer Airport (TTN) to Denver Intl. Airport (DEN)?
To find the cheapest airline that'll fly you from TTN to DEN, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Mercer Airport (TTN) to Denver Intl. Airport (DEN)?
Direct flights from Mercer Airport (TTN) to Denver Intl. Airport (DEN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TTN to DEN?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the season and airline.*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 Denver Intl. Airport (DEN)?
Book a flight from Mercer Airport (TTN) to Denver Intl. Airport (DEN) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Denver Intl. Airport (DEN) last-minute?
Booking your ticket from TTN to DEN just before your getaway is usually more expensive. However, if you're flexible with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a TTN to DEN flight and hotel package?
Securing a TTN to DEN flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Denver Intl. Airport (DEN)?
If you booked your TTN to DEN flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.