TTN - DEN

$95 Find Cheap Flights from Trenton to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Trenton to Denver departing on 10/23. 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

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

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

Cheap Flights from Trenton to Denver (TTN-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Trenton to Denver 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 Trenton to Denver

Thu, Oct 2 - Sat, Oct 4
Frontier Logo
10:30 am - 8:47 pmTTN-DEN
12h 17m1 stop
Frontier Logo
12:59 am - 9:32 amDEN-TTN
6h 33m1 stop
$150Frontier
Find Deal
Thu, Oct 2 - Thu, Oct 2
Frontier Logo
10:30 am - 8:47 pmTTN-DEN
12h 17m1 stop
Frontier Logo
12:59 am - 11:34 amDEN-TTN
8h 35m1 stop
$152Frontier
Find Deal
Thu, Oct 2 - Sun, Oct 5
Frontier Logo
10:30 am - 8:47 pmTTN-DEN
12h 17m1 stop
Frontier Logo
11:59 pm - 12:15 pmDEN-TTN
10h 16m1 stop
$157Frontier
Find Deal
Thu, Oct 2 - Sun, Oct 5
Frontier Logo
10:30 am - 8:47 pmTTN-DEN
12h 17m1 stop
Frontier Logo
11:59 pm - 12:15 pmDEN-TTN
10h 16m1 stop
$158Frontier
Find Deal
Mon, Sep 29 - Thu, Oct 2
Frontier Logo
12:30 pm - 8:47 pmTTN-DEN
10h 17m1 stop
Frontier Logo
12:59 am - 11:34 amDEN-TTN
8h 35m1 stop
$160Frontier
Find Deal
Fri, Oct 3 - Fri, Oct 3
Frontier Logo
12:30 pm - 8:47 pmTTN-DEN
10h 17m1 stop
Frontier Logo
12:04 am - 11:00 amDEN-TTN
8h 56m1 stop
$161Frontier
Find Deal
Fri, Oct 17 - Sun, Oct 19
Frontier Logo
10:19 am - 9:18 amTTN-DEN
24h 59m1 stop
Frontier Logo
11:59 pm - 9:24 amDEN-TTN
7h 25m1 stop
$163Frontier
Find Deal
Fri, Oct 17 - Sat, Oct 18
Frontier Logo
10:19 am - 9:18 amTTN-DEN
24h 59m1 stop
Frontier Logo
12:36 am - 10:14 amDEN-TTN
7h 38m1 stop
$166Frontier
Find Deal
Thu, Oct 23 - Thu, Oct 30
Frontier Logo
4:25 pm - 11:16 pmTTN-DEN
8h 51m1 stop
Frontier Logo
6:00 am - 10:13 amDEN-TTN
26h 13m1 stop
$167Frontier
Find Deal
Thu, Oct 16 - Fri, Oct 17
Frontier Logo
4:25 pm - 11:16 pmTTN-DEN
8h 51m1 stop
Frontier Logo
12:36 am - 11:59 pmDEN-TTN
21h 23m1 stop
$169Frontier
Find Deal

Everything you should know

Cheapest round-trip
$150
Frontier
Thu 10/2Sat 10/4
TTN - DEN • 1 stop
Cheapest one-way
$95
Frontier
Thu 10/23
TTN - DEN • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Booking Insights

KAYAK's insights & trends for Trenton to Denver flights

Get data-powered insights and trends into flights from Trenton to Denver 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 Trenton to Denver?

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

If your flying dates are flexible, you should consider flying to Denver on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Trenton to Denver. For your return ticket, we recommend flying on a Saturday and avoiding Fridays for the best deals.

Good to know

Cheapest flight$95
Flight from Trenton to Denver

When to book flights from Trenton to Denver

Are your dates flexible? Find out the best times to travel from Trenton to Denver 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 Trenton to Denver

  • What is the cheapest flight from Trenton to Denver?

    In the last 3 days, the lowest price for a flight from Trenton to Denver was $95 for a one-way ticket and $150 for a round-trip.

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

    A passport is not required to fly from Trenton to Denver.

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

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

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

    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 Trenton to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Trenton 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 Trenton to Denver?

    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 Denver with an airline and back to Trenton with another airline. Booking your flights between Trenton and DEN 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 Trenton to Denver?

    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 Denver from Trenton 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 Trenton to Denver

 
See real verified KAYAK customer reviews for airlines flying from Trenton to Denver. 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 Trenton to Denver? 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 3172 reviews
5.5Comfort
4.7Food
6.7Crew
4.4Entertainment
6.1Boarding
Airline reviews

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

4.0 OkayAnonymous, Aug 2025SEA - DEN
Read more Frontier reviews

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

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

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