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$95+ Cheap flights from Trenton, NJ to Denver (TTN - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — DEN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Trenton to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$150
(CheapOair)

One-way from

$95
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$282
From Trenton-Mercer to Denver Intl
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One-way flight from Trenton-Mercer to Denver Intl
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Trenton to Denver

Cheapest flights from Trenton to Denver
Explore the most affordable flight options available from Trenton to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:30 amTTN - DEN
1 stop12h 17mFrontier
Sat 10/412:59 amDEN - TTN
1 stop6h 33mFrontier
Deal found 9/15$150
This Booking.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:30 amTTN - DEN
1 stop12h 17mFrontier
Thu 10/212:59 amDEN - TTN
1 stop8h 35mFrontier
Deal found 9/14$152
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:19 amTTN - DEN
1 stop24h 59mFrontier
Sun 10/1911:59 pmDEN - TTN
1 stop7h 25mFrontier
Deal found 9/15$163
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:19 amTTN - DEN
1 stop24h 59mFrontier
Wed 10/221:44 pmDEN - TTN
1 stop18h 30mFrontier
Deal found 9/15$166
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:00 amTTN - DEN
1 stop19h 16mFrontier
Wed 10/221:44 pmDEN - TTN
1 stop18h 30mFrontier
Deal found 9/15$169
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:45 amTTN - DEN
1 stop13h 28mFrontier
Wed 10/112:59 amDEN - TTN
1 stop6h 33mFrontier
Deal found 9/15$172
This Booking.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:30 pmTTN - DEN
1 stop10h 17mFrontier
Fri 10/312:04 amDEN - TTN
1 stop8h 56mFrontier
Deal found 9/14$173
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/94:25 pmTTN - DEN
1 stop8h 51mFrontier
Sun 10/1911:59 pmDEN - TTN
1 stop7h 25mFrontier
Deal found 9/14$176
This Priceline deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:30 pmTTN - DEN
1 stop10h 17mFrontier
Sun 10/511:59 pmDEN - TTN
1 stop10h 16mFrontier
Deal found 9/16$178

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Trenton to Denver that are best for you.

Fly from

Trenton

Fly to

Denver

Route

Depart

Return

Price

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 10/2

10:30 am-8:47 pm

1 stop12h 17m

Denver Intl

Sat 10/4

12:59 am-9:32 am

1 stop6h 33m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 10/17

10:19 am-9:18 am

1 stop24h 59m

Denver Intl

Sat 10/18

12:36 am-10:14 am

1 stop7h 38m

$166

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 10/17

10:19 am-9:18 am

1 stop24h 59m

Denver Intl

Wed 10/22

1:44 pm-10:14 am

1 stop18h 30m

$166

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 11/13

4:27 pm-11:16 pm

1 stop8h 49m

Denver Intl

Sat 11/15

11:59 pm-8:34 pm

1 stop18h 35m

$166

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 10/16

6:00 am-11:16 pm

1 stop19h 16m

Denver Intl

Fri 10/17

12:36 am-11:59 pm

1 stop21h 23m

$169

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 10/16

6:00 am-11:16 pm

1 stop19h 16m

Denver Intl

Wed 10/22

1:44 pm-10:14 am

1 stop18h 30m

$169

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 10/3

12:30 pm-8:47 pm

1 stop10h 17m

Denver Intl

Fri 10/3

12:04 am-11:00 am

1 stop8h 56m

$173

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 10/9

4:25 pm-11:16 pm

1 stop8h 51m

Denver Intl

Sat 10/18

12:36 am-10:14 am

1 stop7h 38m

$179

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Mon 10/6

12:30 pm-8:47 pm

1 stop10h 17m

Denver Intl

Wed 10/8

1:44 pm-10:14 am

1 stop18h 30m

$191

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 10/30

4:27 pm-11:16 pm

1 stop8h 49m

Denver Intl

Sun 11/2

11:59 pm-10:13 am

1 stop8h 14m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 20 results
1
2

Best time to book a flight from Trenton to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Trenton, New Jersey to Denver?

Currently, October is the cheapest month in which you can book a flight from Trenton, New Jersey to Denver (average of $197). Flying from Trenton, New Jersey to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TTN to DEN?

Find hourly flight availability from Trenton to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s optimal to fly from Trenton, New Jersey to Denver in the evening. By choosing this option you can save up to 52% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated September 17, 2025.
See what other customers who have flown with Frontier from Trenton to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Frontier
5.8
Fair
3,173 reviews

Entertainment

4.4

Overall

5.8

Boarding

6.1

Comfort

5.5

Crew

6.7

Food

4.7

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

MCO - DFW

Frontier likes to promote themselves as being a cheap airline to fly, but in the end, that’s laughable. Only AFTER I booked through you, and then had to go to their site to choose my seats and baggage, did I find they charged a $75 “Passenger” fee. No explanation on what that was even for. Then for them to charge $5 for sodas, and who knows what for any small snack, is just insulting.
Frontier
5.8
Fair
3,173 reviews
Frontier
5.8
Fair
3,173 reviews

Entertainment

4.4

Overall

5.8

Boarding

6.1

Comfort

5.5

Crew

6.7

Food

4.7

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

MCO - DFW

Frontier likes to promote themselves as being a cheap airline to fly, but in the end, that’s laughable. Only AFTER I booked through you, and then had to go to their site to choose my seats and baggage, did I find they charged a $75 “Passenger” fee. No explanation on what that was even for. Then for them to charge $5 for sodas, and who knows what for any small snack, is just insulting.

Related info for your journey

Find useful and relevant information for your journey from Trenton to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Trenton, New Jersey to Denver?

    Airlines like Frontier fly from Trenton, New Jersey to Denver in about 12h 17m. The time it takes to get you to your destination can typically vary by up to . The distance between Trenton, New Jersey and Denver is about 1571 mi.

  • What is the cheapest airline to fly from Trenton, New Jersey to Denver round-trip?

    Our cheapest airline available from Trenton, New Jersey to Denver is Frontier. Our recent data shows that you can find tickets from as low as $108 on this airline.

  • Can I find deals for flights from Trenton to Denver that include hotel bookings?

    Yes. In addition to deals on Trenton to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trenton to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trenton to Denver.

  • Can I find deals for business class flights from Trenton to Denver?

    Yes. Cheapflights offers flight deals from Trenton to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Trenton, New Jersey to Denver?

    Currently, October is the cheapest month in which you can book a flight from Trenton, New Jersey to Denver (average of $197). Flying from Trenton, New Jersey to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Golden
Winter Park
Lakewood
Broomfield
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Alternative routes for Trenton to Denver

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Top airline flying from Trenton to Denver

Discover the top airline that operate flights from Trenton to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$295FlexibilityNo cancel feeOn-time62%

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