DEN - TTN

$68 Find Cheap Flights from Denver to Trenton

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Trenton departing on 2/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Trenton

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Trenton, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Trenton, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$166
Frontier
Fri 1/23Mon 1/26
DEN - TTN • 1 stop
Cheapest one-way
$68
Frontier
Sat 2/14
DEN - TTN • 1 stop
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We hope you love your trip to Trenton!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Trenton (DEN-TTN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Trenton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Trenton

Fri, Jan 23 - Mon, Jan 26
Frontier Logo
6:32 pm - 11:09 am
DEN
-
TTN
14h 37m1 stop
Frontier Logo
8:27 pm - 9:35 am
TTN
-
DEN
15h 08m1 stop
$166Frontier
Thu, Jan 8 - Thu, Jan 15
Frontier Logo
9:44 am - 11:59 pm
DEN
-
TTN
12h 15m1 stop
Frontier Logo
7:00 am - 5:31 pm
TTN
-
DEN
12h 31m1 stop
$182Frontier
Sat, Jan 10 - Mon, Jan 12
Frontier Logo
6:33 pm - 1:32 pm
DEN
-
TTN
16h 59m1 stop
Frontier Logo
6:00 am - 5:22 pm
TTN
-
DEN
13h 22m1 stop
$183Frontier
Sat, Jan 10 - Sat, Jan 17
Frontier Logo
11:59 pm - 1:32 pm
DEN
-
TTN
11h 33m1 stop
Frontier Logo
8:00 am - 8:00 pm
TTN
-
DEN
14h 00m1 stop
$201Frontier
Tue, Jan 20 - Thu, Jan 22
Frontier Logo
10:40 am - 2:26 pm
DEN
-
TTN
25h 46m1 stop
Frontier Logo
8:38 pm - 12:28 pm
TTN
-
DEN
17h 50m1 stop
$214Frontier
Sun, Jan 4 - Thu, Jan 8
Frontier Logo
11:59 pm - 11:59 pm
DEN
-
TTN
22h 00m1 stop
Frontier Logo
7:58 pm - 7:59 pm
TTN
-
DEN
26h 01m1 stop
$218Frontier
Tue, Dec 23 - Tue, Dec 30
Frontier Logo
6:00 am - 4:18 pm
DEN
-
TTN
8h 18m1 stop
Frontier Logo
9:59 pm - 11:04 pm
TTN
-
DEN
27h 05m1 stop
$233Frontier
Mon, Dec 29 - Wed, Jan 7
Frontier Logo
11:59 pm - 4:18 pm
DEN
-
TTN
14h 19m1 stop
Frontier Logo
8:00 am - 10:59 pm
TTN
-
DEN
16h 59m1 stop
$234Frontier
Tue, Dec 30 - Wed, Jan 7
Frontier Logo
11:59 pm - 9:14 pm
DEN
-
TTN
19h 15m1 stop
Frontier Logo
8:00 am - 8:24 am
TTN
-
DEN
26h 24m1 stop
$244Frontier
Thu, Jan 15 - Sun, Jan 18
Frontier Logo
9:27 am - 11:59 pm
DEN
-
TTN
12h 32m1 stop
Frontier Logo
6:15 am - 12:59 am
TTN
-
DEN
20h 44m1 stop
$249Frontier
Booking Insights

KAYAK's insights & trends for Denver to Trenton flights

Get data-powered insights and trends into flights from Denver to Trenton to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Trenton?

The average price of all round-trip flights from Denver to Trenton clicked on KAYAK for each day over the last 12 months.

For Denver to Trenton, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from Trenton back to Denver, the best deals are generally found on Thursday, with Friday being the most expensive.

Good to know

Cheapest flight$68
Flight from Denver to Trenton

When to book flights from Denver to Trenton

Are your dates flexible? Find out the best times to travel from Denver to Trenton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Trenton

  • What is the cheapest flight from Denver to Trenton?

    In the last 3 days, the lowest price for a flight from Denver to Trenton was $68 for a one-way ticket and $166 for a round-trip.

  • Do I need a passport to fly between Denver and Trenton?

    No, a passport isn't needed to fly from Denver to Trenton. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Denver to Trenton?

    Denver airport is called Denver Intl and the only airport in Trenton is Trenton-Mercer.

  • Which aircraft models fly most regularly from Denver to Trenton?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Denver to Trenton?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Trenton.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Trenton?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trenton from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Trenton?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trenton with an airline and back to Denver with another airline. Booking your flights between Denver and TTN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Trenton?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trenton from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Denver to Trenton

 
See real verified KAYAK customer reviews for airlines flying from Denver to Trenton. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Trenton? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
5.8
FrontierOverall score based on 3084 reviews
4.4Entertainment
4.6Food
5.5Comfort
6.6Crew
6.0Boarding
Airline reviews

Not clean and was told I would get a great seat and it was not great at all

2.0 MediocreAnonymous, Dec 2025
DEN - PHL
Read more Frontier reviews

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Everything you need to know for your flight from Denver to Trenton

Information on your arrival and departure airports