$85 Find Cheap Flights from Trenton to Colorado

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 Colorado departing on 5/18. 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 Colorado

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

Book Cheap Trenton to Colorado Plane Tickets

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

Thu, May 14 - Tue, May 19
Frontier Logo
4:04 pm - 10:39 pm
TTN
-
DEN
8h 35m
1 stop
Frontier Logo
11:56 pm - 9:37 am
DEN
-
TTN
7h 41m
1 stop
$180Frontier
Fri, May 15 - Tue, May 19
Frontier Logo
8:31 pm - 8:24 am
TTN
-
DEN
13h 53m
1 stop
Frontier Logo
11:56 pm - 9:37 am
DEN
-
TTN
7h 41m
1 stop
$185Frontier
Thu, May 14 - Mon, May 18
Frontier Logo
4:04 pm - 10:39 pm
TTN
-
DEN
8h 35m
1 stop
Frontier Logo
11:56 pm - 9:42 am
DEN
-
TTN
7h 46m
1 stop
$205Frontier
Tue, May 12 - Tue, May 19
Frontier Logo
10:27 am - 8:24 am
TTN
-
DEN
23h 57m
1 stop
Frontier Logo
11:56 pm - 9:37 am
DEN
-
TTN
7h 41m
1 stop
$206Frontier
Mon, Jun 1 - Tue, Jun 9
Frontier Logo
10:27 am - 11:11 pm
TTN
-
DEN
14h 44m
1 stop
Frontier Logo
11:59 pm - 3:58 pm
DEN
-
TTN
13h 59m
1 stop
$210Frontier
Sat, May 23 - Wed, May 27
Frontier Logo
8:44 pm - 11:11 pm
TTN
-
DEN
28h 27m
1 stop
Frontier Logo
11:56 pm - 9:42 am
DEN
-
TTN
7h 46m
1 stop
$211Frontier
Thu, Jun 4 - Sat, Jun 6
Frontier Logo
10:27 am - 11:11 pm
TTN
-
DEN
14h 44m
1 stop
Frontier Logo
9:15 am - 9:03 pm
DEN
-
TTN
9h 48m
1 stop
$215Frontier
Fri, Jun 5 - Tue, Jun 9
Frontier Logo
4:29 pm - 10:39 pm
TTN
-
DEN
8h 10m
1 stop
Frontier Logo
3:10 pm - 7:48 pm
DEN
-
TTN
26h 38m
1 stop
$216Frontier
Sat, May 23 - Tue, May 26
Frontier Logo
8:44 pm - 11:11 pm
TTN
-
DEN
28h 27m
1 stop
Frontier Logo
11:56 pm - 9:37 am
DEN
-
TTN
7h 41m
1 stop
$219Frontier
Fri, May 29 - Tue, Jun 2
Frontier Logo
8:31 pm - 11:11 pm
TTN
-
DEN
28h 40m
1 stop
Frontier Logo
6:00 am - 9:37 am
DEN
-
TTN
25h 37m
1 stop
$222Frontier
Booking Insights

KAYAK's insights & trends for Trenton to Colorado flights

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

Which airlines fly non-stop between Trenton and Colorado?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Trenton to Colorado.

There is just one airline that flies from Trenton to Colorado direct and that is Frontier. The best round-trip deal found from Frontier for the route is to Denver (DEN) and costs $166.

Good to know

Cheapest flight$85
Flight from Trenton to Denver

FAQs - booking Colorado flights

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

    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 Colorado.

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

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

    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 from Trenton to Colorado with an airline and back with another airline.

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

    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 from Trenton to Colorado 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 Colorado

 
See real verified KAYAK customer reviews for airlines flying from Trenton to Colorado. 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 Colorado? 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.
5.6
FrontierOverall score based on 2971 reviews
6.6Crew
5.9Boarding
4.5Food
5.4Comfort
4.3Entertainment
Airline reviews

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

2.0 MediocreHarris, May 2026
RDU - ORD
Read more Frontier reviews

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

It was an early flight and most people napped/slept and the crew let us which was nice.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

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.

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

Information on your arrival and departure airports