HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$64+ Cheap flights from Trenton, NJ (TTN) to Chicago (CHI)

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — CHI
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Trenton to Chicago with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Trenton to Chicago

Cheapest flights from Trenton to Chicago
Explore the most affordable flight options available from Trenton to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 8, 2025.

This CheapOair deal was found by Cheapflights users on 12/7. 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.
Tue 12/309:59 pmTTN - ORD
1 stop13h 19mFrontier
Thu 1/88:00 amORD - TTN
1 stop10h 13mFrontier
Deal found 12/7$163
This CheapOair deal was found by Cheapflights users on 12/7. 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 12/219:59 pmTTN - ORD
1 stop11h 48mFrontier
Tue 12/307:01 pmORD - TTN
1 stop27h 58mFrontier
Deal found 12/7$164
This Frontier deal was found by Cheapflights users on 12/7. 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.
Sun 12/146:10 amTTN - ORD
1 stop8h 21mFrontier
Thu 1/88:00 amORD - TTN
1 stop10h 13mFrontier
Deal found 12/7$187
This CheapOair deal was found by Cheapflights users on 12/8. 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 12/209:59 pmTTN - ORD
1 stop22h 22mFrontier
Tue 12/307:01 pmORD - TTN
1 stop25h 13mFrontier
Deal found 12/8$188
This CheapOair deal was found by Cheapflights users on 12/7. 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.
Tue 12/309:59 pmTTN - ORD
1 stop13h 19mFrontier
Sun 1/48:09 pmORD - TTN
1 stop26h 50mFrontier
Deal found 12/7$198
This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:59 pmTTN - ORD
1 stop13h 19mFrontier
Mon 1/59:47 amORD - TTN
1 stop13h 12mFrontier
Deal found 12/8$207
This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:21 pmTTN - ORD
1 stop12h 41mFrontier
Thu 1/88:00 amORD - TTN
1 stop10h 13mFrontier
Deal found 12/8$213
This CheapOair deal was found by Cheapflights users on 12/7. 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 12/226:10 amTTN - ORD
1 stop27h 52mFrontier
Tue 12/307:01 pmORD - TTN
1 stop27h 58mFrontier
Deal found 12/7$214
This CheapOair deal was found by Cheapflights users on 12/7. 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 12/156:10 amTTN - ORD
1 stop8h 06mFrontier
Tue 1/65:29 pmORD - TTN
1 stop27h 27mFrontier
Deal found 12/7$215
This CheapOair deal was found by Cheapflights users on 12/6. 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.
Sun 12/146:10 amTTN - ORD
1 stop8h 21mFrontier
Thu 1/158:51 pmORD - TTN
1 stop25h 48mFrontier
Deal found 12/6$218
This CheapOair deal was found by Cheapflights users on 12/7. 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.
Sat 12/209:59 pmTTN - ORD
1 stop22h 22mFrontier
Sun 1/48:09 pmORD - TTN
1 stop26h 50mFrontier
Deal found 12/7$223
This Mytrip deal was found by Cheapflights users on 12/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:58 pmTTN - ORD
1 stop20h 33mFrontier
Mon 12/152:26 pmORD - TTN
1 stop8h 33mFrontier
Deal found 12/8$234

Find flight deals from Trenton to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to Chicago (CHI). 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 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$126
(Kiwi.com)

One-way from

$64
(Frontier)

Popular in

August

Cheapest in

January

Average price

$267
Provider with most accurate pricing for Trenton-Mercer-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trenton-Mercer-Chicago (CHI) flights.
Search Deals
From Trenton-Mercer to Chicago (CHI)
Search Deals
One-way flight from Trenton-Mercer to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($22 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 Trenton to Chicago 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 8, 2025.
Use the filters below to find and compare flights from Trenton to Chicago that are best for you.

Fly from

Trenton

Fly to

Chicago

Route

Depart

Return

Price

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 1/23

11:56 am-4:35 pm

1 stop29h 39m

Chicago O'Hare Intl

Mon 1/26

11:51 am-2:26 pm

1 stop25h 35m

$129

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 1/25

12:21 pm-11:59 pm

1 stop12h 38m

Chicago O'Hare Intl

Sat 1/31

9:15 am-11:26 am

1 stop25h 11m

$129

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 2/5

8:38 pm-10:35 am

1 stop14h 57m

Chicago O'Hare Intl

Sat 2/7

9:15 am-11:26 am

1 stop25h 11m

$146

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 1/22

8:38 pm-10:35 am

1 stop14h 57m

Chicago O'Hare Intl

Thu 1/29

11:51 am-7:48 pm

1 stop6h 57m

$146

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 3/7

5:13 pm-11:03 pm

1 stop6h 50m

Chicago O'Hare Intl

Wed 3/11

10:12 am-11:59 pm

1 stop12h 47m

$162

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 12/21

9:59 pm-8:47 am

1 stop11h 48m

Chicago O'Hare Intl

Thu 1/8

8:27 pm-11:59 pm

1 stop26h 32m

$164

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Mon 12/29

9:21 pm-9:02 am

1 stop12h 41m

Chicago O'Hare Intl

Mon 1/5

9:47 am-11:59 pm

1 stop13h 12m

$183

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Wed 4/8

6:10 am-9:02 am

1 stop27h 52m

Chicago O'Hare Intl

Mon 4/13

10:12 am-11:59 pm

1 stop12h 47m

$184

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 12/21

6:10 am-8:47 am

1 stop27h 37m

Chicago O'Hare Intl

Sat 1/10

8:27 pm-1:32 pm

1 stop16h 05m

$188

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 12/20

9:59 pm-7:21 pm

1 stop22h 22m

Chicago O'Hare Intl

Tue 12/30

7:01 pm-9:14 pm

1 stop25h 13m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Trenton to Chicago

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 Chicago 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 Trenton, New Jersey-Chicago 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-Chicago flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Trenton, New Jersey-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trenton, New Jersey-Chicago 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-Chicago 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 Chicago

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

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

Currently, May is the cheapest month in which you can book a flight from Trenton, New Jersey to Chicago (average of $55). Flying from Trenton, New Jersey to Chicago in July is currently the most expensive (average of $126). 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 CHI?

Find hourly flight availability from Trenton to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 8, 2025.

It’s optimal to fly from Trenton, New Jersey to Chicago in the morning. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Trenton to Chicago. 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 from for flights from Trenton to Chicago?

    Most people fly from Trenton-Mercer (TTN) if they book a flight from Trenton to Chicago. On average, Trenton-Mercer has 0 outbound flights to Chicago per day from 0 airlines. Trenton-Mercer is conveniently located just 4.8 mi from Trenton’s city center.

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

    Airlines like Frontier and Allegiant Air fly from Trenton, New Jersey to Chicago in about 16h 16m. The time it takes to get you to your destination can typically vary by up to 13h 23m. There are 752 mi between Trenton, New Jersey and Chicago. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trenton to Chicago 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 Chicago?

    Currently, May is the cheapest month in which you can book a flight from Trenton, New Jersey to Chicago (average of $55). Flying from Trenton, New Jersey to Chicago in July is currently the most expensive (average of $126). 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lansing
Merrillville
Hammond
Porter
Benton Harbor

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Trenton to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Newark to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
LaGuardia to Midway flights
John F Kennedy Intl to Midway flights
Newark to St. Louis flights
John F Kennedy Intl to St. Louis flights
LaGuardia to St. Louis flights
Philadelphia to Midway flights
Newark to Midway flights
Philadelphia to St. Louis flights
Atlantic City to O'Hare Intl flights
Trenton to O'Hare Intl flights
John F Kennedy Intl to Moline flights
Newark to Moline flights
LaGuardia to Moline flights
John F Kennedy Intl to Bloomington flights
Newark to Bloomington flights
LaGuardia to Bloomington flights
Newark to Peoria flights
Trenton to St. Louis flights
Philadelphia to Moline flights
LaGuardia to Peoria flights
John F Kennedy Intl to Peoria flights
LaGuardia to Decatur flights
Philadelphia to Rockford flights
Newark to Evansville flights
Philadelphia to Peoria flights
Philadelphia to Bloomington flights
John F Kennedy Intl to Evansville flights
Newark to Dubuque flights
LaGuardia to Evansville flights
John F Kennedy Intl to Champaign flights
LaGuardia to Champaign flights
Newark to Champaign flights
Newark to Rockford flights
LaGuardia to Paducah flights
Newark to Paducah flights
John F Kennedy Intl to Springfield flights
Philadelphia to Springfield flights
Philadelphia to Champaign flights
Newark to Springfield flights
LaGuardia to Springfield flights
John F Kennedy Intl to Dubuque flights
Philadelphia to Evansville flights
Newark to Marion flights
Philadelphia to Paducah flights
LaGuardia to Marion flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.