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$72+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — DEN
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$144
(Frontier)

One-way from

$72
(Frontier)

Popular in

December

Cheapest in

January

Average price

$272
Provider with most accurate pricing for Trenton-Mercer-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Trenton-Mercer-Denver Intl flights.
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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, 4% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 8, 2026.

This Frontier deal was found by Cheapflights users on 1/7. 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 2/58:38 pmTTN - DEN
1 stop13h 52mFrontier
Mon 2/99:41 amDEN - TTN
1 stop12h 18mFrontier
Deal found 1/7$144
This CheapOair deal was found by Cheapflights users on 1/7. 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.
Mon 1/268:27 pmTTN - DEN
1 stop15h 08mFrontier
Wed 1/286:32 pmDEN - TTN
1 stop23h 16mFrontier
Deal found 1/7$145
This Frontier deal was found by Cheapflights users on 1/7. 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.
Sat 2/78:19 pmTTN - DEN
1 stop14h 11mFrontier
Mon 2/99:41 amDEN - TTN
1 stop12h 18mFrontier
Deal found 1/7$159
This Booking.com deal was found by Cheapflights users on 1/7. 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.
Tue 3/38:00 amTTN - DEN
1 stop16h 59mFrontier
Tue 3/109:25 amDEN - TTN
1 stop12h 34mFrontier
Deal found 1/7$160
This Frontier deal was found by Cheapflights users on 1/6. 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.
Sat 2/78:19 pmTTN - DEN
1 stop14h 11mFrontier
Wed 2/117:00 pmDEN - TTN
1 stop12h 46mFrontier
Deal found 1/6$164
This CheapOair deal was found by Cheapflights users on 1/6. 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.
Tue 2/33:21 pmTTN - DEN
1 stop20h 39mFrontier
Tue 2/1011:59 pmDEN - TTN
1 stop21h 40mFrontier
Deal found 1/6$165
This CheapOair deal was found by Cheapflights users on 1/8. 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.
Sat 2/218:00 amTTN - DEN
1 stop16h 59mFrontier
Thu 2/266:00 amDEN - TTN
1 stop15h 59mFrontier
Deal found 1/8$171
This Super.com deal was found by Cheapflights users on 1/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/218:00 amTTN - DEN
1 stop16h 59mFrontier
Tue 2/2411:59 pmDEN - TTN
1 stop21h 40mFrontier
Deal found 1/8$176
This Frontier deal was found by Cheapflights users on 1/7. 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.
Fri 1/2311:56 amTTN - DEN
1 stop10h 04mFrontier
Mon 2/99:41 amDEN - TTN
1 stop12h 18mFrontier
Deal found 1/7$177
This CheapOair deal was found by Cheapflights users on 1/7. 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 1/259:06 pmTTN - DEN
1 stop13h 24mFrontier
Wed 1/286:32 pmDEN - TTN
1 stop23h 16mFrontier
Deal found 1/7$178
This CheapOair deal was found by Cheapflights users on 1/6. 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.
Wed 2/258:00 amTTN - DEN
1 stop25h 55mFrontier
Sat 2/288:55 amDEN - TTN
1 stop20h 52mFrontier
Deal found 1/6$181

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 January 8, 2026.
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 2/5

8:38 pm-8:30 am

1 stop13h 52m

Denver Intl

Mon 2/9

9:41 am-11:59 pm

1 stop12h 18m

$144

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 1/29

8:38 pm-8:30 am

1 stop13h 52m

Denver Intl

Sat 2/7

6:32 pm-8:36 am

1 stop12h 04m

$144

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 4/9

6:10 am-5:33 pm

1 stop13h 23m

Denver Intl

Mon 4/13

2:31 pm-11:59 pm

1 stop7h 28m

$177

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 1/23

11:56 am-8:00 pm

1 stop10h 04m

Denver Intl

Wed 2/11

11:59 pm-9:46 am

1 stop7h 47m

$177

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Fri 1/30

11:56 am-8:00 pm

1 stop10h 04m

Denver Intl

Sat 2/7

6:32 pm-8:36 am

1 stop12h 04m

$177

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Mon 2/23

6:45 am-8:00 pm

1 stop15h 15m

Denver Intl

Thu 2/26

10:00 am-11:59 pm

1 stop11h 59m

$177

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 1/29

8:38 pm-12:28 pm

1 stop17h 50m

Denver Intl

Fri 2/6

6:32 pm-11:09 am

1 stop14h 37m

$177

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Sun 1/25

9:06 pm-8:30 am

1 stop13h 24m

Denver Intl

Wed 1/28

6:32 pm-7:48 pm

1 stop23h 16m

$178

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 1/22

8:38 pm-12:28 pm

1 stop17h 50m

Denver Intl

Wed 1/28

6:32 pm-7:48 pm

1 stop23h 16m

$181

TrentonDenver

TTN - DEN

TTNDEN

Trenton-Mercer

Thu 4/9

6:10 am-1:28 pm

1 stop9h 18m

$72

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 20 results
1
2

Compare providers for flights from Trenton to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Trenton to Denver in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Trenton, New Jersey-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Trenton, New Jersey-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Trenton, New Jersey-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trenton, New Jersey-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Trenton, New Jersey-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $88). Flying from Trenton, New Jersey to Denver in June is currently the most expensive (average of $136). 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.

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 January 8, 2026.
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
5.7
Fair
3,061 reviews

Entertainment

4.4

Boarding

6.0

Crew

6.6

Food

4.6

Overall

5.7

Comfort

5.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

ATL - MDW

Flight was canceled. Late notification and limited help with booking another flight.
Frontier
5.7
Fair
3,061 reviews
Frontier
5.7
Fair
3,061 reviews

Entertainment

4.4

Boarding

6.0

Crew

6.6

Food

4.6

Overall

5.7

Comfort

5.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

ATL - MDW

Flight was canceled. Late notification and limited help with booking another flight.

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 13h 52m. 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 $138 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 $88). Flying from Trenton, New Jersey to Denver in June is currently the most expensive (average of $136). 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
Thornton
Black Hawk
Broomfield
Westminster
Lakewood
Golden
Greeley
Lone Tree
Wheat Ridge
Cripple Creek
Winter Park
Silverthorne
Central City
Frisco
Manitou Springs
Fort Morgan
Brighton
Longmont
Evergreen
Idaho Springs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Trenton to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$207FlexibilityNo cancel feeOn-time62%

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