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Cheap flights from Trenton, New Jersey to Chicago from $101

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 9/8. 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
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
$228Frontier
Thu, Jul 23 - Thu, Jul 30
Frontier Logo
8:33 pm - 9:11 am
TTN
-
ORD
13h 38m
1 stop
Frontier Logo
5:13 pm - 9:58 am
ORD
-
TTN
15h 45m
1 stop
$230Frontier
Sun, Jul 12 - Fri, Jul 17
Frontier Logo
8:31 pm - 11:13 pm
TTN
-
ORD
27h 42m
1 stop
Frontier Logo
5:11 pm - 9:42 am
ORD
-
TTN
15h 31m
1 stop
$240Frontier
Tue, May 26 - Mon, Jun 1
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
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
$244Frontier
Sat, Jul 4 - Tue, Jul 7
Frontier Logo
10:27 am - 11:13 pm
TTN
-
ORD
13h 46m
1 stop
Frontier Logo
5:11 pm - 7:46 pm
ORD
-
TTN
25h 35m
1 stop
$247Frontier
Mon, Jun 1 - Thu, Jun 4
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
$249Frontier
Sat, Jul 4 - Mon, Jul 13
Frontier Logo
9:37 pm - 11:05 pm
TTN
-
ORD
26h 28m
1 stop
Frontier Logo
5:13 pm - 7:48 pm
ORD
-
TTN
25h 35m
1 stop
$250Frontier
Sat, Jul 18 - Thu, Jul 23
Frontier Logo
8:33 pm - 9:11 am
TTN
-
ORD
13h 38m
1 stop
Frontier Logo
5:13 pm - 9:58 am
ORD
-
TTN
15h 45m
1 stop
$253Frontier
Sun, Jul 12 - Fri, Jul 17

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
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 23
TTN8:33 pmTrenton-Mercer
27h 32m
1 stop
ORD11:05 pmChicago O'Hare Intl
Jul 30
ORD5:13 pmChicago O'Hare Intl
15h 45m
1 stop
TTN9:58 amTrenton-Mercer
$228
Frontier
Jul 12
TTN8:33 pmTrenton-Mercer
13h 38m
1 stop
ORD9:11 amChicago O'Hare Intl
Jul 17
ORD5:13 pmChicago O'Hare Intl
15h 45m
1 stop
TTN9:58 amTrenton-Mercer
$230

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 May 17, 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

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

Thu 7/23

8:33 pm-11:05 pm

1 stop27h 32m

Chicago O'Hare Intl

Thu 7/30

5:13 pm-9:58 am

1 stop15h 45m

$228

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 7/12

8:33 pm-9:11 am

1 stop13h 38m

Chicago O'Hare Intl

Fri 7/17

5:13 pm-9:58 am

1 stop15h 45m

$230

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Tue 5/26

8:31 pm-11:13 pm

1 stop27h 42m

Chicago O'Hare Intl

Mon 6/1

5:11 pm-9:42 am

1 stop15h 31m

$240

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
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

Tue 7/7

5:13 pm-9:58 am

1 stop15h 45m

$244

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Mon 6/1

10:27 am-11:13 pm

1 stop13h 46m

Chicago O'Hare Intl

Thu 6/4

5:11 pm-7:46 pm

1 stop25h 35m

$247

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 7/4

11:22 am-11:19 pm

1 stop12h 57m

Chicago O'Hare Intl

Mon 7/13

5:13 pm-9:58 am

1 stop15h 45m

$249

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sat 7/18

9:37 pm-11:05 pm

1 stop26h 28m

Chicago O'Hare Intl

Thu 7/23

5:13 pm-7:48 pm

1 stop25h 35m

$250

TrentonChicago

TTN - ORD

TTNORD

Trenton-Mercer

Sun 7/12

8:33 pm-9:11 am

1 stop13h 38m

Chicago O'Hare Intl

Fri 7/17

5:13 pm-9:58 am

1 stop15h 45m

$253

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $292. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday 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 $368.

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 $278 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $364. 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

13h 46m

Direct flights

None
The fastest flight from Trenton, New Jersey to Chicago O'Hare Intl Airport takes 13h 46m
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 13h 46m.

  • 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
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Rosemont
Naperville
Orland Park
New Buffalo
Oak Brook
Kenosha
Joliet
Aurora
Racine
Janesville
Hammond
Evanston
Elgin
Tinley Park

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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