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$54+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — CHI
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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Find 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 October 13, 2025.

This Frontier deal was found by Cheapflights users on 10/13. 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 10/306:00 amTTN - ORD
1 stop7h 26mFrontier
Mon 11/35:15 amORD - TTN
1 stop11h 20mFrontier
Deal found 10/13$108
This Mytrip deal was found by Cheapflights users on 10/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:00 amTTN - ORD
1 stop11h 33mFrontier
Sun 10/265:50 amORD - TTN
1 stop26h 34mFrontier
Deal found 10/11$135
This Booking.com deal was found by Cheapflights users on 10/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:00 amTTN - ORD
1 stop26h 34mFrontier
Mon 10/278:15 amORD - TTN
1 stop14h 44mFrontier
Deal found 10/11$156
This CheapOair deal was found by Cheapflights users on 10/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/188:00 amTTN - ORD
1 stop8h 39mFrontier
Sat 10/257:43 pmORD - TTN
1 stop13h 31mFrontier
Deal found 10/10$173
This Frontier deal was found by Cheapflights users on 10/10. 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.
Thu 10/306:00 amTTN - ORD
1 stop7h 26mFrontier
Sun 11/27:05 amORD - TTN
1 stop12h 29mFrontier
Deal found 10/10$181
This Booking.com deal was found by Cheapflights users on 10/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:00 amTTN - ORD
1 stop26h 34mFrontier
Sun 10/265:50 amORD - TTN
1 stop26h 34mFrontier
Deal found 10/12$183
This CheapOair deal was found by Cheapflights users on 10/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:00 amTTN - ORD
1 stop7h 26mFrontier
Mon 11/35:15 amORD - TTN
1 stop11h 20mFrontier
Deal found 10/11$191
This Booking.com deal was found by Cheapflights users on 10/13. 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.
Mon 10/276:00 amTTN - ORD
1 stop12h 13mFrontier
Mon 11/35:15 amORD - TTN
1 stop11h 20mFrontier
Deal found 10/13$193
This Mytrip deal was found by Cheapflights users on 10/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:00 amTTN - ORD
1 stop26h 34mFrontier
Thu 10/307:05 amORD - TTN
1 stop26h 08mFrontier
Deal found 10/11$200
This Booking.com deal was found by Cheapflights users on 10/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:00 amTTN - ORD
1 stop7h 26mFrontier
Sun 11/167:05 amORD - TTN
1 stop26h 08mFrontier
Deal found 10/12$202
This CheapOair deal was found by Cheapflights users on 10/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/264:25 pmTTN - ORD
1 stop25h 48mFrontier
Sun 11/27:05 amORD - TTN
1 stop12h 29mFrontier
Deal found 10/12$218

Cheap 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 October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$108
(CheapOair)

One-way from

$54
(Frontier)

Popular in

August

Cheapest in

January

Average price

$239
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. 7% potential increase in price ($18 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 October 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 October 13, 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

Thu 10/30

6:00 am-12:26 pm

1 stop7h 26m

Chicago O'Hare Intl

Mon 11/3

5:15 am-11:59 pm

1 stop17h 44m

$108

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/30

6:00 am-12:26 pm

1 stop7h 26m

Chicago O'Hare Intl

Sun 11/2

7:05 am-8:34 pm

1 stop12h 29m

$135

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 10/25

8:00 am-6:33 pm

1 stop11h 33m

Chicago O'Hare Intl

Sun 10/26

5:50 am-9:24 am

1 stop26h 34m

$135

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/30

6:00 am-12:26 pm

1 stop7h 26m

Chicago O'Hare Intl

Sat 11/1

8:00 am-11:59 pm

1 stop14h 59m

$156

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/23

4:25 pm-7:34 am

1 stop16h 09m

Chicago O'Hare Intl

Sat 10/25

7:43 pm-10:14 am

1 stop13h 31m

$156

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/23

6:00 am-7:34 am

1 stop26h 34m

Chicago O'Hare Intl

Mon 10/27

8:15 am-11:59 pm

1 stop14h 44m

$156

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/23

6:00 am-7:34 am

1 stop26h 34m

Chicago O'Hare Intl

Sun 10/26

5:50 am-9:24 am

1 stop26h 34m

$183

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Tue 2/10

8:10 am-4:19 pm

1 stop9h 09m

$127

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Wed 2/18

8:10 am-4:19 pm

1 stop9h 09m

$127

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Tue 3/3

8:10 am-4:19 pm

1 stop9h 09m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

Showing 1-10 of 17 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Trenton, New Jersey-Chicago flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, November is the cheapest month in which you can book a flight from Trenton, New Jersey to Chicago (average of $44). 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 October 13, 2025.

It’s optimal to fly from Trenton, New Jersey to Chicago in the morning. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated October 13, 2025.
Peruse reviews from past customers who have flown with Frontier from Trenton to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Frontier
5.8
Fair
3,135 reviews

Comfort

5.5

Food

4.6

Boarding

6.1

Overall

5.8

Entertainment

4.4

Crew

6.7

Reviews

1 / 20
2.0
Mediocre

Shawn,Sep 2025

SAN - SFO

The flight was over booked and was unadble to get help with issue. I could not get a refund or rebooked in order to make my trip
Frontier
5.8
Fair
3,135 reviews
Frontier
5.8
Fair
3,135 reviews

Comfort

5.5

Food

4.6

Boarding

6.1

Overall

5.8

Entertainment

4.4

Crew

6.7

Reviews

1 / 20
2.0
Mediocre

Shawn,Sep 2025

SAN - SFO

The flight was over booked and was unadble to get help with issue. I could not get a refund or rebooked in order to make my trip

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 fly from Trenton, New Jersey to Chicago in about 7h 26m. The time it takes to get you to your destination can typically vary by up to . There are 690 mi between Trenton, New Jersey and Chicago.

  • 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, November is the cheapest month in which you can book a flight from Trenton, New Jersey to Chicago (average of $44). 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
Merrillville
Lansing
Hammond
Porter
Benton Harbor
Chesterton

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