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$81+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — DEN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$150
(CheapOair)

One-way from

$81
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$318
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, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:30 pmTTN - DEN
1 stop10h 17mFrontier
Thu 9/1112:59 amDEN - TTN
1 stop8h 35mFrontier
Deal found 8/14$150
This Booking.com deal was found by Cheapflights users on 8/17. 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 9/1110:30 amTTN - DEN
1 stop12h 17mFrontier
Sat 9/1312:59 amDEN - TTN
1 stop6h 33mFrontier
Deal found 8/17$151
This CheapOair deal was found by Cheapflights users on 8/15. 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 9/512:30 pmTTN - DEN
1 stop10h 17mFrontier
Sun 9/711:59 pmDEN - TTN
1 stop10h 16mFrontier
Deal found 8/15$157
This Gotogate deal was found by Cheapflights users on 8/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1311:45 amTTN - DEN
1 stop22h 24mFrontier
Thu 9/1812:59 amDEN - TTN
1 stop8h 35mFrontier
Deal found 8/15$159
This Mytrip deal was found by Cheapflights users on 8/15. 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.
Mon 9/1512:30 pmTTN - DEN
1 stop10h 17mFrontier
Fri 9/1912:04 amDEN - TTN
1 stop8h 56mFrontier
Deal found 8/15$160
This Priceline deal was found by Cheapflights users on 8/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:30 pmTTN - DEN
1 stop10h 17mFrontier
Fri 9/512:04 amDEN - TTN
1 stop8h 56mFrontier
Deal found 8/15$161
This Mytrip deal was found by Cheapflights users on 8/17. 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 9/121:15 pmTTN - DEN
1 stop21h 34mFrontier
Sat 9/1312:59 amDEN - TTN
1 stop6h 33mFrontier
Deal found 8/17$163
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:30 amTTN - DEN
1 stop12h 17mFrontier
Thu 9/1111:59 pmDEN - TTN
1 stop10h 16mFrontier
Deal found 8/16$167
This CheapOair deal was found by Cheapflights users on 8/15. 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.
Sun 9/144:57 pmTTN - DEN
1 stop17h 12mFrontier
Sat 9/209:44 amDEN - TTN
1 stop23h 16mFrontier
Deal found 8/15$169

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 August 18, 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

Fri 9/12

12:30 pm-8:47 pm

1 stop10h 17m

Denver Intl

Sat 9/13

12:59 am-9:32 am

1 stop6h 33m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 9/4

10:30 am-8:47 pm

1 stop12h 17m

Denver Intl

Sat 9/6

12:59 am-9:32 am

1 stop6h 33m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 9/5

12:30 pm-8:47 pm

1 stop10h 17m

Denver Intl

Sat 9/6

12:59 am-9:32 am

1 stop6h 33m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 9/11

10:30 am-8:47 pm

1 stop12h 17m

Denver Intl

Sat 9/13

12:59 am-9:32 am

1 stop6h 33m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 10/2

10:30 am-8:47 pm

1 stop12h 17m

Denver Intl

Sun 10/5

12:59 am-11:34 am

1 stop8h 35m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 10/3

12:30 pm-8:47 pm

1 stop10h 17m

Denver Intl

Sat 10/4

12:59 am-9:32 am

1 stop6h 33m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Mon 9/15

12:30 pm-8:47 pm

1 stop10h 17m

Denver Intl

Thu 9/18

12:59 am-11:34 am

1 stop8h 35m

$150

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Mon 9/29

12:30 pm-8:47 pm

1 stop10h 17m

$81

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 10/3

12:30 pm-8:47 pm

1 stop10h 17m

$81

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 10/2

10:30 am-8:47 pm

1 stop12h 17m

$81

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 15 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 August 18, 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 August 18, 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
3,212 reviews

Crew

6.7

Comfort

5.6

Overall

5.8

Entertainment

4.4

Boarding

6.1

Food

4.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.
Frontier
5.8
Fair
3,212 reviews
Frontier
5.8
Fair
3,212 reviews

Crew

6.7

Comfort

5.6

Overall

5.8

Entertainment

4.4

Boarding

6.1

Food

4.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

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.

  • 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 $84 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
Westminster
Black Hawk
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Greeley
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Cripple Creek
Silverthorne
Thornton
Broomfield
Frisco
Manitou Springs
Grand Lake
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Glendale
Copper Mountain
Wheat Ridge
Brighton
Longmont

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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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$295FlexibilityNo cancel feeOn-time62%

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