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Trenton

$65+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — TTN
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap 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 December 14, 2025.

This Frontier deal was found by Cheapflights users on 12/11. 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.
Mon 12/152:26 pmORD - TTN
1 stop8h 33mFrontier
Sun 12/219:59 pmTTN - ORD
1 stop11h 48mFrontier
Deal found 12/11$238
This Frontier deal was found by Cheapflights users on 12/11. 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.
Mon 12/152:26 pmORD - TTN
1 stop8h 33mFrontier
Sat 12/209:59 pmTTN - ORD
1 stop12h 03mFrontier
Deal found 12/11$264
This Frontier deal was found by Cheapflights users on 12/11. 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 12/132:26 pmORD - TTN
1 stop8h 33mFrontier
Sun 12/219:59 pmTTN - ORD
1 stop11h 48mFrontier
Deal found 12/11$267
This Frontier deal was found by Cheapflights users on 12/11. 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.
Sun 12/142:36 pmORD - TTN
1 stop8h 23mFrontier
Sun 12/219:59 pmTTN - ORD
1 stop11h 48mFrontier
Deal found 12/11$287
This Frontier deal was found by Cheapflights users on 12/11. 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 12/132:26 pmORD - TTN
1 stop8h 33mFrontier
Thu 12/189:59 pmTTN - ORD
1 stop11h 53mFrontier
Deal found 12/11$293
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:20 amORD - TTN
1 stop15h 39mMultiple Airlines
Tue 1/68:00 amTTN - ORD
1 stop12h 02mMultiple Airlines
Deal found 12/11$297
This Frontier deal was found by Cheapflights users on 12/11. 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.
Sun 12/142:36 pmORD - TTN
1 stop8h 23mFrontier
Sat 12/209:59 pmTTN - ORD
1 stop12h 03mFrontier
Deal found 12/11$313
This Frontier deal was found by Cheapflights users on 12/12. 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.
Sun 12/142:36 pmORD - TTN
1 stop8h 23mFrontier
Sun 1/116:00 amTTN - ORD
1 stop14h 17mFrontier
Deal found 12/12$317
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:09 pmORD - TTN
1 stop10h 50mMultiple Airlines
Tue 1/68:00 amTTN - ORD
2 stops39h 39mMultiple Airlines
Deal found 12/11$343
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:25 amORD - TTN
2 stops14h 49mMultiple Airlines
Mon 1/59:21 pmTTN - ORD
1 stop22h 41mMultiple Airlines
Deal found 12/11$347
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:20 amORD - TTN
1 stop15h 39mMultiple Airlines
Thu 1/16:10 amTTN - ORD
1 stop9h 11mMultiple Airlines
Deal found 12/11$360

Find 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 December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$163
(CheapOair)

One-way from

$65
(CheapOair)

Popular in

June

Cheapest in

January

Average price

$232
Provider with most accurate pricing for Chicago (CHI)-Trenton-Mercer flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Trenton-Mercer flights.
Search Deals
From Chicago (CHI) to Trenton-Mercer
Search Deals
One-way flight from Chicago (CHI) to Trenton-Mercer
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 14, 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

Thu 1/15

8:51 pm-9:04 pm

1 stop23h 13m

Trenton-Mercer

Sun 1/18

6:15 am-6:58 pm

1 stop13h 43m

$228

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Thu 1/29

11:51 am-7:48 pm

1 stop6h 57m

Trenton-Mercer

Sun 2/1

12:21 pm-11:59 pm

1 stop12h 38m

$262

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Fri 1/30

11:45 am-11:09 am

1 stop22h 24m

Trenton-Mercer

Sun 2/1

9:06 pm-10:41 am

1 stop14h 35m

$293

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Sun 1/4

8:09 pm-11:59 pm

1 stop26h 50m

Trenton-Mercer

Sun 1/11

6:00 am-7:17 pm

1 stop14h 17m

$294

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Thu 3/12

4:18 pm-11:59 pm

1 stop6h 41m

Trenton-Mercer

Sun 3/22

6:00 am-3:28 pm

1 stop10h 28m

$351

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Thu 1/1

12:09 pm-9:14 pm

1 stop8h 05m

Trenton-Mercer

Mon 1/5

9:21 pm-12:54 pm

2 stops16h 33m

$361

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Tue 12/30

10:12 am-11:59 pm

1 stop12h 47m

Trenton-Mercer

Mon 1/5

9:21 pm-4:19 pm

1 stop19h 58m

$373

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Tue 12/30

12:09 pm-11:59 pm

1 stop10h 50m

Trenton-Mercer

Mon 1/5

9:21 pm-2:21 pm

1 stop18h 00m

$402

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Thu 12/25

5:25 am-9:14 pm

2 stops14h 49m

Trenton-Mercer

Thu 1/1

6:10 am-2:21 pm

1 stop9h 11m

$409

ChicagoTrenton

ORD - TTN

ORDTTN

Chicago O'Hare Intl

Thu 12/25

5:25 am-9:14 pm

2 stops14h 49m

Trenton-Mercer

Tue 12/30

9:59 pm-2:21 pm

1 stop17h 22m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 20 results
1
2

Compare providers for flights from Chicago to Trenton

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 Chicago to Trenton in December.
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 Chicago-Trenton, New Jersey flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-Trenton, New Jersey flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago-Trenton, New Jersey flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Trenton, New Jersey 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 Chicago-Trenton, New Jersey 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 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 $36). Flying from Chicago to Trenton, New Jersey in July is currently the most expensive (average of $104). 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 December 14, 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.

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. 0 airlines have flights to Trenton-Mercer from Chicago on a regular basis.

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

    Frontier can get you from Chicago to Trenton, New Jersey in just under 23h 13m. Your travel time can differ by up to . The distance from Chicago to Trenton, New Jersey is about 690 mi.

  • 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 $36). Flying from Chicago to Trenton, New Jersey in July is currently the most expensive (average of $104). 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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