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Cheap flights from Trenton, New Jersey to Chicago from $120

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trenton, New Jersey to Chicago departing on 8/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Trenton, New Jersey to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:30 am - 11:08 pm
TTN
-
ORD
17h 38m
1 stop
Frontier Logo
6:05 am - 12:04 pm
ORD
-
TTN
28h 59m
1 stop
$244Frontier
Thu, Sep 3 - Mon, Sep 7
Frontier Logo
9:23 am - 11:10 pm
TTN
-
ORD
14h 47m
1 stop
Frontier Logo
5:13 pm - 8:38 am
ORD
-
TTN
14h 25m
1 stop
$245Frontier
Thu, Jul 30 - Mon, Aug 3
Frontier Logo
6:05 am - 11:10 pm
TTN
-
ORD
18h 05m
1 stop
Frontier Logo
5:13 pm - 11:40 pm
ORD
-
TTN
29h 27m
1 stop
$251Frontier
Sat, Jul 25 - Mon, Jul 27
Frontier Logo
6:05 am - 11:10 pm
TTN
-
ORD
18h 05m
1 stop
Frontier Logo
5:13 pm - 11:40 pm
ORD
-
TTN
29h 27m
1 stop
$256Frontier
Thu, Jul 23 - Tue, Jul 28
Frontier Logo
11:15 am - 9:11 am
TTN
-
ORD
22h 56m
1 stop
Frontier Logo
10:16 am - 11:40 pm
ORD
-
TTN
12h 24m
1 stop
$257Frontier
Thu, Aug 6 - Mon, Aug 10
Frontier Logo
6:25 am - 11:10 pm
TTN
-
ORD
17h 45m
1 stop
Frontier Logo
5:13 pm - 8:38 am
ORD
-
TTN
14h 25m
1 stop
$258Frontier
Wed, Jul 22 - Sat, Jul 25
Frontier Logo
12:49 pm - 1:20 pm
TTN
-
ORD
25h 31m
1 stop
Frontier Logo
7:44 pm - 11:40 pm
ORD
-
TTN
26h 56m
1 stop
$260Frontier
Thu, Sep 3 - Sun, Sep 6
Frontier Logo
6:05 am - 11:10 pm
TTN
-
ORD
18h 05m
1 stop
Frontier Logo
5:13 pm - 8:38 am
ORD
-
TTN
14h 25m
1 stop
$263Frontier
Thu, Jul 23 - Sat, Jul 25
Multiple Airlines Logo
6:05 am - 7:00 pm
TTN
-
RFD
13h 55m
1 stop
Multiple Airlines Logo
7:50 pm - 8:38 am
RFD
-
TTN
11h 48m
1 stop
$438Multiple Airlines
Mon, Jul 27 - Mon, Aug 3
Multiple Airlines Logo
4:26 pm - 10:37 am
TTN
-
RFD
19h 11m
2 stops
Multiple Airlines Logo
8:39 am - 11:38 am
RFD
-
TTN
25h 59m
1 stop
$490Multiple Airlines
Wed, Jul 15 - Fri, Jul 17

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Frontier flights from Trenton, New Jersey to Chicago

Our best Frontier deals on Trenton, New Jersey to Chicago flight tickets
Frontier
Sep 3
TTN6:30 amTrenton-Mercer
17h 38m
1 stop
ORD11:08 pmChicago O'Hare Intl
Sep 7
ORD6:05 amChicago O'Hare Intl
28h 59m
1 stop
TTN12:04 pmTrenton-Mercer
$244
Frontier
Jul 30
TTN9:23 amTrenton-Mercer
14h 47m
1 stop
ORD11:10 pmChicago O'Hare Intl
Aug 3
ORD5:13 pmChicago O'Hare Intl
14h 25m
1 stop
TTN8:38 amTrenton-Mercer
$245
Frontier
Jul 25
TTN6:05 amTrenton-Mercer
18h 05m
1 stop
ORD11:10 pmChicago O'Hare Intl
Jul 27
ORD5:13 pmChicago O'Hare Intl
29h 27m
1 stop
TTN11:40 pmTrenton-Mercer
$251

momondo Fare Finder

 
Customize your flight search to find flights from Trenton, New Jersey 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, momondo users made 832,500 searches. Data last updated July 2, 2026.
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

Cheapest round-trip

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 9/3

6:30 am-11:08 pm

1 stop17h 38m

Chicago O'Hare Intl

Mon 9/7

6:05 am-12:04 pm

1 stop28h 59m

$244

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 7/30

9:23 am-11:10 pm

1 stop14h 47m

Chicago O'Hare Intl

Mon 8/3

5:13 pm-8:38 am

1 stop14h 25m

$245

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 7/25

6:05 am-11:10 pm

1 stop18h 05m

Chicago O'Hare Intl

Mon 7/27

5:13 pm-11:40 pm

1 stop29h 27m

$251

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 7/23

6:05 am-11:10 pm

1 stop18h 05m

Chicago O'Hare Intl

Tue 7/28

5:13 pm-11:40 pm

1 stop29h 27m

$256

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 8/6

11:15 am-9:11 am

1 stop22h 56m

Chicago O'Hare Intl

Mon 8/10

10:16 am-11:40 pm

1 stop12h 24m

$257

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Wed 7/22

6:25 am-11:10 pm

1 stop17h 45m

Chicago O'Hare Intl

Sat 7/25

5:13 pm-8:38 am

1 stop14h 25m

$258

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 9/3

12:49 pm-1:20 pm

1 stop25h 31m

Chicago O'Hare Intl

Sun 9/6

7:44 pm-11:40 pm

1 stop26h 56m

$260

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 7/23

6:05 am-11:10 pm

1 stop18h 05m

Chicago O'Hare Intl

Sat 7/25

5:13 pm-8:38 am

1 stop14h 25m

$263
Quickest round-trip

TrentonChicago

TTN - RFD

TTNRFD

Trenton-Mercer

Mon 7/27

6:05 am-7:00 pm

1 stop13h 55m

Chicago Greater Rockford

Mon 8/3

7:50 pm-8:38 am

1 stop11h 48m

$438

TrentonChicago

TTN - RFD

TTNRFD

Trenton-Mercer

Wed 7/15

4:26 pm-10:37 am

2 stops19h 11m

Chicago Greater Rockford

Fri 7/17

8:39 am-11:38 am

1 stop25h 59m

$490

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

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

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 Saturday when prices can be found for as low as $319. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Trenton, New Jersey to Chicago for around $392.

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 $302. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $371.

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

11h 19m

Direct flights

None
The fastest flight from Trenton, New Jersey to Chicago takes 11h 19m
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

Frequently asked questions about flying from Trenton, New Jersey to Chicago

  • 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 11h 19m.

  • 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.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Portage
Benton Harbor
Saint Joseph
Lansing
Valparaiso
Schererville
Munster
Crown Point
Monticello
Chesterton
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.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport