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

Frontier and Allegiant Air are the most popular carriers operating from Trenton-Mercer to Chicago

What airlines fly to Chicago?

United Airlines, American Airlines and Spirit Airlines are the top three most popular airlines that fly to Chicago from Trenton, New Jersey according to our data. United Airlines is the first choice among our users, with 41% 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.

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.

$64 Cheap Flights from Trenton to Chicago in 2025/26

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Find the cheapest flights from Trenton, New Jersey to Chicago

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:38 pm - 10:35 am

TTN

ORD

14h 57m1 stop

9:15 am - 11:26 am

ORD

TTN

25h 11m1 stop

$145Frontier

Thu, Jan 22 - Sat, Jan 24

11:54 am - 11:15 pm

TTN

ORD

12h 21m1 stop

12:15 pm - 11:59 pm

ORD

TTN

10h 44m1 stop

$162Frontier

Mon, Feb 23 - Thu, Feb 26

8:38 pm - 10:35 am

TTN

ORD

14h 57m1 stop

8:30 am - 11:39 pm

ORD

TTN

14h 09m1 stop

$163Frontier

Thu, Feb 5 - Tue, Feb 10

6:00 am - 7:17 pm

TTN

ORD

14h 17m1 stop

8:00 am - 7:13 pm

ORD

TTN

10h 13m1 stop

$197Frontier

Thu, Jan 8 - Sun, Jan 11

11:56 am - 4:35 pm

TTN

ORD

29h 39m1 stop

11:51 am - 7:32 pm

ORD

TTN

6h 41m1 stop

$205Frontier

Fri, Jan 23 - Mon, Jan 26

12:04 pm - 11:46 pm

TTN

ORD

12h 42m2 stops

9:25 am - 7:24 pm

ORD

TTN

8h 59m1 stop

$212Multiple Airlines

Thu, Jan 22 - Sat, Jan 24

9:59 pm - 9:02 am

TTN

ORD

12h 03m1 stop

10:12 am - 11:59 pm

ORD

TTN

12h 47m1 stop

$213Frontier

Sat, Apr 11 - Mon, Apr 13

8:38 pm - 10:35 am

TTN

ORD

14h 57m1 stop

1:54 pm - 11:59 pm

ORD

TTN

9h 05m1 stop

$214Frontier

Thu, Feb 5 - Thu, Feb 12

8:38 pm - 10:35 am

TTN

ORD

14h 57m1 stop

5:32 pm - 8:36 am

ORD

TTN

14h 04m2 stops

$232Multiple Airlines

Thu, Jan 29 - Sat, Jan 31

6:10 am - 12:29 am

TTN

ORD

19h 19m1 stop

4:00 pm - 4:18 pm

ORD

TTN

23h 18m1 stop

$233Frontier

Fri, Apr 10 - Sun, Apr 12

Frontier flights from Trenton, New Jersey to Chicago

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

Frontier

Jan 22

TTN8:38 pmTrenton-Mercer

14h 57m

1 stop

ORD10:35 amChicago O'Hare Intl

Jan 24

ORD9:15 amChicago O'Hare Intl

25h 11m

1 stop

TTN11:26 amTrenton-Mercer

$145

Find similar

Frontier

Feb 23

TTN11:54 amTrenton-Mercer

12h 21m

1 stop

ORD11:15 pmChicago O'Hare Intl

Feb 26

ORD12:15 pmChicago O'Hare Intl

10h 44m

1 stop

TTN11:59 pmTrenton-Mercer

$162

Find similar

Frontier

Feb 5

TTN8:38 pmTrenton-Mercer

14h 57m

1 stop

ORD10:35 amChicago O'Hare Intl

Feb 10

ORD8:30 amChicago O'Hare Intl

14h 09m

1 stop

TTN11:39 pmTrenton-Mercer

$163

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

Thu 1/22

8:38 pm-10:35 am

1 stop14h 57m

Chicago O'Hare Intl

Sat 1/24

9:15 am-11:26 am

1 stop25h 11m

$145

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Mon 2/23

11:54 am-11:15 pm

1 stop12h 21m

Chicago O'Hare Intl

Thu 2/26

12:15 pm-11:59 pm

1 stop10h 44m

$162

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 2/5

8:38 pm-10:35 am

1 stop14h 57m

Chicago O'Hare Intl

Tue 2/10

8:30 am-11:39 pm

1 stop14h 09m

$163

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 1/8

6:00 am-7:17 pm

1 stop14h 17m

Chicago O'Hare Intl

Sun 1/11

8:00 am-7:13 pm

1 stop10h 13m

$197

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-7:32 pm

1 stop6h 41m

$205

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 1/22

12:04 pm-11:46 pm

2 stops12h 42m

Chicago O'Hare Intl

Sat 1/24

9:25 am-7:24 pm

1 stop8h 59m

$212

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 4/11

9:59 pm-9:02 am

1 stop12h 03m

Chicago O'Hare Intl

Mon 4/13

10:12 am-11:59 pm

1 stop12h 47m

$213

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 2/5

8:38 pm-10:35 am

1 stop14h 57m

Chicago O'Hare Intl

Thu 2/12

1:54 pm-11:59 pm

1 stop9h 05m

$214

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 1/29

8:38 pm-10:35 am

1 stop14h 57m

Chicago O'Hare Intl

Sat 1/31

5:32 pm-8:36 am

2 stops14h 04m

$232

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 4/10

6:10 am-12:29 am

1 stop19h 19m

Chicago O'Hare Intl

Sun 4/12

4:00 pm-4:18 pm

1 stop23h 18m

$233

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 $291. 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 $369.

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 $269. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $365.

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

Fastest flight time	7h 09m
Direct flights	None

The fastest flight from Trenton, New Jersey to Chicago takes 7h 09m

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 09m.
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.

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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.