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Trenton

$135+ Cheap flights from Chicago (CHI) to Trenton, NJ (TTN)

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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — TTN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Chicago to Trenton

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Trenton (TTN). 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 June 12, 2025.

Round-trip from

$277
(Frontier)

One-way from

$135
(Frontier)

Popular in

December

Cheapest in

January

Average price

$233
From Chicago (CHI) to Trenton-Mercer
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One-way flight from Chicago (CHI) to Trenton-Mercer
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Highest demand for flights based on searches. 7% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Chicago to Trenton

Cheapest flights from Chicago to Trenton
Explore the most affordable flight options available from Chicago to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/10. 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.
Tue 7/811:59 amORD - TTN
1 stop11h 00mFrontier
Sat 7/129:29 amTTN - ORD
1 stop10h 51mFrontier
Deal found 6/10$277

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago to Trenton 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 June 12, 2025.
Use the filters below to find and compare flights from Chicago to Trenton that are best for you.

Fly from

Chicago

Fly to

Trenton

Route

Depart

Return

Price

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Tue 7/8

11:59 am-11:59 pm

1 stop11h 00m

Trenton-Mercer

Sat 7/12

9:29 am-7:20 pm

1 stop10h 51m

$277

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Mon 8/11

5:01 am-11:22 am

1 stop5h 21m

$141

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Sun 6/22

5:05 am-11:59 pm

3 stops17h 54m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Chicago to Trenton

Have a flexible travel schedule? Discover the best time to fly to Trenton from Chicago 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 Chicago to Trenton

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Trenton, New Jersey (average of $73). Flying from Chicago to Trenton, New Jersey in June is currently the most expensive (average of $153). 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 CHI to TTN?

Find hourly flight availability from Chicago to Trenton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Chicago to Trenton, New Jersey at noon. Doing so could potentially save you 76% on the flight price compared to flying in the evening, which is usually more expensive.

Rainfall in Trenton by month

Plan your trip to Trenton by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Trenton, New Jersey ranges from 2.9 - 4.8 inches per month. July is typically the wettest month, when rainfall can reach 4.8 in. February is typically the driest time to visit Trenton, New Jersey when rainfall is around 2.9 in.

Temperature in Trenton by month

Plan your trip to Trenton by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Trenton, New Jersey, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Trenton

Get insights into the airlines that provide service to Trenton. 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 Trenton. Reviews last updated June 12, 2025.
Frontier
5.9
Fair
3,295 reviews

Boarding

6.2

Food

4.8

Crew

6.8

Comfort

5.6

Overall

5.9

Entertainment

4.5

Reviews

1 / 20
4.0
Okay

Paulina,Jun 2025

MSY - DEN

The staff in the plane and outside of the plane were very rude. My flight was delayed 3 times which i understand was not the staff’s fault but my boarding pass time was never updated which had multiple people very confused and when I asked the question of why no answer was given. They made a handful of people check their bag and upon entering the plane there was still plenty of room.
Frontier
5.9
Fair
3,295 reviews
Frontier
5.9
Fair
3,295 reviews

Boarding

6.2

Food

4.8

Crew

6.8

Comfort

5.6

Overall

5.9

Entertainment

4.5

Reviews

1 / 20
4.0
Okay

Paulina,Jun 2025

MSY - DEN

The staff in the plane and outside of the plane were very rude. My flight was delayed 3 times which i understand was not the staff’s fault but my boarding pass time was never updated which had multiple people very confused and when I asked the question of why no answer was given. They made a handful of people check their bag and upon entering the plane there was still plenty of room.

Related info for your journey

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

  • What airport do you fly into for flights to Trenton from Chicago?

    For a flight from Chicago to Trenton, you will be flying into Trenton-Mercer. Trenton-Mercer (TTN) is just 4.8 mi from the center of the city. Trenton-Mercer is the only Trenton airport and it handles 0 inbound flights from Chicago per day. 1 airline has flights to Trenton-Mercer from Chicago on a regular basis.

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

    According to our current data, Frontier ($277), offers the cheapest pricing from Chicago to Trenton, New Jersey.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago to Trenton 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 Chicago to Trenton, New Jersey?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Trenton, New Jersey (average of $73). Flying from Chicago to Trenton, New Jersey in June is currently the most expensive (average of $153). 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

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Alternative routes for Chicago to Trenton

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Chicago to Trenton

Discover the top airline that operate flights from Chicago to Trenton. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$198FlexibilityNo cancel feeOn-time62%

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