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Cheap flights from Trenton, New Jersey to Chicago from $100

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 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
11:22 am - 11:19 pm
TTN
-
ORD
12h 57m
1 stop
Frontier Logo
5:13 pm - 9:58 am
ORD
-
TTN
15h 45m
1 stop
$210Frontier
Sat, Jul 4 - Wed, Jul 8
Frontier Logo
8:33 pm - 11:05 pm
TTN
-
ORD
27h 32m
1 stop
Frontier Logo
5:13 pm - 9:58 am
ORD
-
TTN
15h 45m
1 stop
$224Frontier
Sun, Jul 19 - Thu, Aug 13
Frontier Logo
8:33 pm - 11:05 pm
TTN
-
ORD
27h 32m
1 stop
Frontier Logo
5:13 pm - 9:58 am
ORD
-
TTN
15h 45m
1 stop
$230Frontier
Wed, Jul 8 - Mon, Jul 13
Frontier Logo
10:27 am - 11:13 pm
TTN
-
ORD
13h 46m
1 stop
Frontier Logo
5:11 pm - 9:42 am
ORD
-
TTN
15h 31m
1 stop
$231Frontier
Fri, May 29 - Mon, Jun 1
Frontier Logo
8:31 pm - 11:13 pm
TTN
-
ORD
27h 42m
1 stop
Frontier Logo
5:11 pm - 9:37 am
ORD
-
TTN
15h 26m
1 stop
$240Frontier
Thu, May 28 - Tue, Jun 2
Frontier Logo
8:33 pm - 11:05 pm
TTN
-
ORD
27h 32m
1 stop
Frontier Logo
5:13 pm - 7:48 pm
ORD
-
TTN
25h 35m
1 stop
$242Frontier
Sun, Jul 19 - Thu, Jul 23
Frontier Logo
8:33 pm - 11:05 pm
TTN
-
ORD
27h 32m
1 stop
Frontier Logo
5:13 pm - 9:58 am
ORD
-
TTN
15h 45m
1 stop
$243Frontier
Wed, Jul 8 - Sun, Jul 12
Allegiant Air Logo
4:02 pm - 10:02 am
TTN
-
RFD
19h 00m
1 stop
Allegiant Air Logo
10:25 am - 3:13 pm
RFD
-
TTN
27h 48m
1 stop
$414Allegiant Air
Mon, Jun 1 - Thu, Jun 4
Allegiant Air Logo
4:13 pm - 4:19 pm
TTN
-
RFD
25h 06m
1 stop
Allegiant Air Logo
10:20 am - 3:23 pm
RFD
-
TTN
28h 03m
1 stop
$445Allegiant Air
Fri, Jul 3 - Thu, Jul 9
Multiple Airlines Logo
4:27 pm - 10:37 am
TTN
-
RFD
19h 10m
2 stops
Multiple Airlines Logo
10:20 am - 3:23 pm
RFD
-
TTN
28h 03m
1 stop
$468Multiple Airlines
Sat, Jul 4 - Thu, Jul 9

Frontier flights from Trenton, New Jersey to Chicago

Our best Frontier deals on Trenton, New Jersey to Chicago flight tickets
Frontier
Jul 4
TTN11:22 amTrenton-Mercer
12h 57m
1 stop
ORD11:19 pmChicago O'Hare Intl
Jul 8
ORD5:13 pmChicago O'Hare Intl
15h 45m
1 stop
TTN9:58 amTrenton-Mercer
$210
Frontier
Jul 19
TTN8:33 pmTrenton-Mercer
27h 32m
1 stop
ORD11:05 pmChicago O'Hare Intl
Aug 13
ORD5:13 pmChicago O'Hare Intl
15h 45m
1 stop
TTN9:58 amTrenton-Mercer
$224
Frontier
Jul 8
TTN8:33 pmTrenton-Mercer
27h 32m
1 stop
ORD11:05 pmChicago O'Hare Intl
Jul 13
ORD5:13 pmChicago O'Hare Intl
15h 45m
1 stop
TTN9:58 amTrenton-Mercer
$230

Allegiant Air flights from Trenton, New Jersey to Chicago

Our best Allegiant Air deals on Trenton, New Jersey to Chicago flight tickets
Allegiant Air
Jun 1
TTN4:02 pmTrenton-Mercer
19h 00m
1 stop
RFD10:02 amChicago Greater Rockford
Jun 4
RFD10:25 amChicago Greater Rockford
27h 48m
1 stop
TTN3:13 pmTrenton-Mercer
$414
Allegiant Air
Jul 3
TTN4:13 pmTrenton-Mercer
25h 06m
1 stop
RFD4:19 pmChicago Greater Rockford
Jul 9
RFD10:20 amChicago Greater Rockford
28h 03m
1 stop
TTN3:23 pmTrenton-Mercer
$445
Allegiant Air
May 15
TTN12:44 pmTrenton-Mercer
23h 16m
1 stop
RFD11:00 amChicago Greater Rockford
May 17
RFD4:45 pmChicago Greater Rockford
18h 09m
1 stop
TTN11:54 amTrenton-Mercer
$478

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 May 13, 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
Quickest round-trip

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 7/4

11:22 am-11:19 pm

1 stop12h 57m

Chicago O'Hare Intl

Wed 7/8

5:13 pm-9:58 am

1 stop15h 45m

$210

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 7/19

8:33 pm-11:05 pm

1 stop27h 32m

Chicago O'Hare Intl

Thu 8/13

5:13 pm-9:58 am

1 stop15h 45m

$224

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Wed 7/8

8:33 pm-11:05 pm

1 stop27h 32m

Chicago O'Hare Intl

Mon 7/13

5:13 pm-9:58 am

1 stop15h 45m

$230

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 5/29

10:27 am-11:13 pm

1 stop13h 46m

Chicago O'Hare Intl

Mon 6/1

5:11 pm-9:42 am

1 stop15h 31m

$231

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 5/28

8:31 pm-11:13 pm

1 stop27h 42m

Chicago O'Hare Intl

Tue 6/2

5:11 pm-9:37 am

1 stop15h 26m

$240

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 7/19

8:33 pm-11:05 pm

1 stop27h 32m

Chicago O'Hare Intl

Thu 7/23

5:13 pm-7:48 pm

1 stop25h 35m

$242

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Wed 7/8

8:33 pm-11:05 pm

1 stop27h 32m

Chicago O'Hare Intl

Sun 7/12

5:13 pm-9:58 am

1 stop15h 45m

$243

TrentonChicago

TTN - RFD

TTNRFD

Trenton-Mercer

Mon 6/1

4:02 pm-10:02 am

1 stop19h 00m

Chicago Greater Rockford

Thu 6/4

10:25 am-3:13 pm

1 stop27h 48m

$414

TrentonChicago

TTN - RFD

TTNRFD

Trenton-Mercer

Fri 7/3

4:13 pm-4:19 pm

1 stop25h 06m

Chicago Greater Rockford

Thu 7/9

10:20 am-3:23 pm

1 stop28h 03m

$445

TrentonChicago

TTN - RFD

TTNRFD

Trenton-Mercer

Sat 7/4

4:27 pm-10:37 am

2 stops19h 10m

Chicago Greater Rockford

Thu 7/9

10:20 am-3:23 pm

1 stop28h 03m

$468

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 $293. 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 $367.

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 $274. 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

13h 22m

Direct flights

None
The fastest flight from Trenton, New Jersey to Chicago takes 13h 22m
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 13h 22m.

  • 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
Saint Joseph
Benton Harbor
Portage
Lansing
Valparaiso
Munster
Schererville
Crown Point
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.

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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