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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
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
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
$264Frontier
Sat, Aug 1 - Mon, Aug 3
Frontier Logo
6:25 am - 11:10 pm
TTN
-
ORD
17h 45m
1 stop
Frontier Logo
5:13 pm - 11:40 pm
ORD
-
TTN
29h 27m
1 stop
$267Frontier
Wed, Jul 29 - Mon, Aug 3
Frontier Logo
9:23 am - 11:10 pm
TTN
-
ORD
14h 47m
1 stop
Frontier Logo
5:13 pm - 11:40 pm
ORD
-
TTN
29h 27m
1 stop
$268Frontier
Thu, Jul 23 - 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
$271Frontier
Fri, Jul 24 - Tue, Jul 28

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Frontier flights from Trenton, New Jersey to Chicago O'Hare Intl Airport

Our best Frontier deals on Trenton, New Jersey to Chicago O'Hare Intl Airport 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 23
TTN6:05 amTrenton-Mercer
18h 05m
1 stop
ORD11:10 pmChicago O'Hare Intl
Jul 28
ORD5:13 pmChicago O'Hare Intl
29h 27m
1 stop
TTN11:40 pmTrenton-Mercer
$256
Frontier
Aug 6
TTN11:15 amTrenton-Mercer
22h 56m
1 stop
ORD9:11 amChicago O'Hare Intl
Aug 10
ORD10:16 amChicago O'Hare Intl
12h 24m
1 stop
TTN11:40 pmTrenton-Mercer
$257

momondo Fare Finder

 
Customize your flight search to find flights from Trenton, New Jersey to Chicago O'Hare Intl Airport 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 3, 2026.
Use the filters below to find and compare flights from Trenton, New Jersey to Chicago O'Hare Intl Airport 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 7/23

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 - ORD

TTNORD

Trenton-Mercer

Sat 8/1

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

$264

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Wed 7/29

6:25 am-11:10 pm

1 stop17h 45m

Chicago O'Hare Intl

Mon 8/3

5:13 pm-11:40 pm

1 stop29h 27m

$267

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Thu 7/23

9:23 am-11:10 pm

1 stop14h 47m

Chicago O'Hare Intl

Mon 7/27

5:13 pm-11:40 pm

1 stop29h 27m

$268

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Fri 7/24

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

$271

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 O'Hare Intl Airport

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 O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Saturday when prices can be found for as low as $318. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Trenton, New Jersey because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $391.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Trenton, New Jersey in the evening is the least expensive time of day to depart. momondo users have found prices as low as $307 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $371. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Trenton, New Jersey to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Trenton, New Jersey to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport (TTN to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trenton, New Jersey to Chicago O'Hare Intl Airport

Fastest flight time

11h 19m

Direct flights

None
The fastest flight from Trenton, New Jersey to Chicago O'Hare Intl Airport takes 11h 19m
There are no direct flights from Trenton, New Jersey to Chicago O'Hare Intl Airport. There are no popular flight routes from Trenton, New Jersey to Chicago O'Hare Intl Airport.
Search flight deals

Frequently asked questions about flying from Trenton, New Jersey to Chicago O'Hare Intl Airport

  • How far is Trenton-Mercer to Chicago O'Hare Intl by plane?

    There are 694.0 mi between Trenton-Mercer and Chicago O'Hare Intl. A reasonable flight in good conditions will take 11h 19m.

  • When did momondo last update prices for flights from Trenton-Mercer Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Trenton-Mercer Airport to Chicago O'Hare Intl Airport refresh daily.

  • How old do you have to be to fly from Trenton-Mercer Airport to Chicago O'Hare Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Trenton-Mercer Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents required for your trip to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport. 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
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South Holland

Why use momondo?

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

It is quick and easy to find Trenton to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

All flight searches from Trenton to Chicago on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Trenton and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Trenton and alert you when they change.

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