What airlines fly to Chicago?

American Airlines, United Airlines and Spirit Airlines are the top three most popular airlines that fly to Chicago from Trenton, New Jersey according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 7 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Trenton-Mercer to Chicago?

Frontier is the most popular carrier operating from Trenton-Mercer to Chicago

When did momondo last update prices for flights from Trenton-Mercer Airport to Chicago?

Prices for flights from Trenton-Mercer Airport to Chicago are updated daily.

How old do you have to be to fly from Trenton-Mercer Airport to Chicago?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trenton-Mercer Airport to Chicago.

What documentation or ID do you need to fly to Chicago?

The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$70 Cheap Flights from Trenton to Chicago in 2025/26

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Find the cheapest flights from Trenton, New Jersey to Chicago

Round-trip

One-way

Last minute

Cheap round-trip flights

12:30 pm - 11:39 pmTTN-ORD

12h 09m1 stop

5:10 am - 11:34 amORD-TTN

5h 24m1 stop

$143Frontier

Find Deal

Fri, Oct 3 - Mon, Oct 6

12:30 pm - 11:39 pmTTN-ORD

12h 09m1 stop

8:49 pm - 11:00 amORD-TTN

13h 11m1 stop

$152Frontier

Find Deal

Fri, Oct 3 - Sun, Oct 5

4:57 pm - 7:44 pmTTN-ORD

27h 47m1 stop

5:10 am - 11:34 amORD-TTN

5h 24m1 stop

$153Frontier

Find Deal

Sun, Sep 28 - Fri, Oct 3

4:25 pm - 7:34 amTTN-ORD

16h 09m1 stop

6:07 pm - 11:59 pmORD-TTN

28h 52m1 stop

$159Frontier

Find Deal

Thu, Oct 9 - Thu, Oct 16

4:25 pm - 7:34 amTTN-ORD

16h 09m1 stop

5:50 am - 9:24 amORD-TTN

26h 34m1 stop

$160Frontier

Find Deal

Thu, Oct 23 - Sun, Oct 26

6:00 am - 4:57 pmTTN-ORD

11h 57m1 stop

5:50 am - 9:24 amORD-TTN

26h 34m1 stop

$161Frontier

Find Deal

Thu, Oct 16 - Sun, Oct 19

10:30 am - 11:39 pmTTN-ORD

14h 09m1 stop

5:10 am - 11:34 amORD-TTN

5h 24m1 stop

$163Frontier

Find Deal

Thu, Oct 2 - Fri, Oct 3

10:30 am - 11:39 pmTTN-ORD

14h 09m1 stop

8:49 pm - 11:00 amORD-TTN

13h 11m1 stop

$171Frontier

Find Deal

Thu, Oct 2 - Sun, Oct 5

6:00 am - 6:46 pmTTN-ORD

13h 46m1 stop

6:58 pm - 10:14 amORD-TTN

14h 16m1 stop

$339Multiple Airlines

Find Deal

Fri, Oct 24 - Sat, Oct 25

6:00 am - 6:46 pmTTN-ORD

13h 46m1 stop

6:00 am - 11:59 pmORD-TTN

16h 59m2 stops

$347Multiple Airlines

Find Deal

Fri, Oct 24 - Sat, Oct 25

Frontier flights from Trenton, New Jersey to Chicago

Our best Frontier deals on Trenton, New Jersey to Chicago flight tickets

Frontier

Oct 3

TTN12:30 pmTrenton-Mercer

12h 09m

1 stop

ORD11:39 pmChicago O'Hare Intl

Oct 6

ORD5:10 amChicago O'Hare Intl

5h 24m

1 stop

TTN11:34 amTrenton-Mercer

$143

Find similar

Frontier

Oct 3

TTN12:30 pmTrenton-Mercer

12h 09m

1 stop

ORD11:39 pmChicago O'Hare Intl

Oct 5

ORD8:49 pmChicago O'Hare Intl

13h 11m

1 stop

TTN11:00 amTrenton-Mercer

$152

Find similar

Frontier

Sep 28

TTN4:57 pmTrenton-Mercer

27h 47m

1 stop

ORD7:44 pmChicago O'Hare Intl

Oct 3

ORD5:10 amChicago O'Hare Intl

5h 24m

1 stop

TTN11:34 amTrenton-Mercer

$153

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Trenton, New Jersey to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 10/3

12:30 pm-11:39 pm

1 stop12h 09m

Chicago O'Hare Intl

Mon 10/6

5:10 am-11:34 am

1 stop5h 24m

$143

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 10/3

12:30 pm-11:39 pm

1 stop12h 09m

Chicago O'Hare Intl

Sun 10/5

8:49 pm-11:00 am

1 stop13h 11m

$152

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 9/28

4:57 pm-7:44 pm

1 stop27h 47m

Chicago O'Hare Intl

Fri 10/3

5:10 am-11:34 am

1 stop5h 24m

$153

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/9

4:25 pm-7:34 am

1 stop16h 09m

Chicago O'Hare Intl

Thu 10/16

6:07 pm-11:59 pm

1 stop28h 52m

$159

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/23

4:25 pm-7:34 am

1 stop16h 09m

Chicago O'Hare Intl

Sun 10/26

5:50 am-9:24 am

1 stop26h 34m

$160

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/16

6:00 am-4:57 pm

1 stop11h 57m

Chicago O'Hare Intl

Sun 10/19

5:50 am-9:24 am

1 stop26h 34m

$161

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/2

10:30 am-11:39 pm

1 stop14h 09m

Chicago O'Hare Intl

Fri 10/3

5:10 am-11:34 am

1 stop5h 24m

$163

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 10/2

10:30 am-11:39 pm

1 stop14h 09m

Chicago O'Hare Intl

Sun 10/5

8:49 pm-11:00 am

1 stop13h 11m

$171

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 10/24

6:00 am-6:46 pm

1 stop13h 46m

Chicago O'Hare Intl

Sat 10/25

6:58 pm-10:14 am

1 stop14h 16m

$339

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 10/24

6:00 am-6:46 pm

1 stop13h 46m

Chicago O'Hare Intl

Sat 10/25

6:00 am-11:59 pm

2 stops16h 59m

$347

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Trenton, New Jersey to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $295. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Trenton, New Jersey to Chicago for around $389.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Trenton, New Jersey to Chicago during this time can be as low as $261. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $368.

When to book flights from Trenton, New Jersey to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Trenton, New Jersey to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Trenton, New Jersey to Chicago (TTN to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trenton, New Jersey to Chicago

Direct flights	None

There are no direct flights from Trenton, New Jersey to Chicago. There are no popular flight routes from Trenton, New Jersey to Chicago.

Search flight deals

How far is Trenton-Mercer to Chicago by plane?
A flight from Trenton-Mercer to Chicago will travel around 679.1 mi. A reasonable flight in good conditions will take 7h 26m.
When did momondo last update prices for flights from Trenton-Mercer Airport to Chicago?
Prices for flights from Trenton-Mercer Airport to Chicago are updated daily.
How old do you have to be to fly from Trenton-Mercer Airport to Chicago?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trenton-Mercer Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Trenton, New Jersey to Chicago?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Trenton, New Jersey to Chicago is Frontier (100% of total bookings).

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Lansing

Portage

Schererville

Valparaiso

Crown Point

Munster

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Trenton to Chicago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from Trenton.

Can I find flights from Trenton to Chicago with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Trenton to Chicago flights to just show those with flexible booking policies.

How can momondo help me find flights from Trenton to Chicago?

Once all potential Trenton to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Trenton to Chicago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Trenton to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.