When did momondo last update prices for flights from Trenton-Mercer Airport to Illinois?

Prices for flights from Trenton-Mercer Airport to Illinois were last updated today.

How old do you have to be to fly from Trenton-Mercer Airport to Illinois?

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 Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$88 Cheap Flights from Trenton, New Jersey to Illinois in 2026/27

Find the cheapest flights from Trenton, New Jersey to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:39 pm - 7:51 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

13h 12m1 stop Orlando

8:11 pm - 6:54 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

21h 43m1 stop Orlando

$215Frontier

Mon, Oct 12 - Fri, Oct 16

9:52 pm - 12:43 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

27h 51m1 stop Tampa

6:30 am - 8:57 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

13h 27m1 stop Tampa

$222Frontier

Tue, Nov 24 - Fri, Nov 27

11:03 am - 1:01 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

14h 58m1 stop Orlando

5:35 am - 10:18 amORD Chicago O'Hare Intl-TTN Trenton-Mercer

27h 43m1 stop Orlando

$222Frontier

Sat, Dec 12 - Mon, Dec 14

7:39 pm - 7:31 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

12h 52m1 stop Orlando

8:11 pm - 6:54 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

21h 43m1 stop Orlando

$230Frontier

Sat, Oct 10 - Fri, Oct 16

7:39 pm - 7:31 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

12h 52m1 stop Orlando

8:46 am - 6:54 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

9h 08m1 stop Orlando

$236Frontier

Sat, Oct 17 - Sat, Oct 24

7:39 pm - 7:31 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

12h 52m1 stop Orlando

8:46 am - 6:54 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

9h 08m1 stop Orlando

$239Frontier

Sat, Oct 17 - Sat, Oct 24

11:03 am - 1:01 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

14h 58m1 stop Orlando

5:35 am - 10:18 amORD Chicago O'Hare Intl-TTN Trenton-Mercer

27h 43m1 stop Orlando

$242Frontier

Sat, Dec 12 - Mon, Dec 14

9:52 pm - 12:43 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

27h 51m1 stop Tampa

5:40 am - 10:34 amORD Chicago O'Hare Intl-TTN Trenton-Mercer

27h 54m1 stop Orlando

$246Frontier

Sun, Nov 22 - Wed, Nov 25

7:39 pm - 7:31 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

12h 52m1 stop Orlando

8:11 pm - 6:54 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

21h 43m1 stop Orlando

$255Frontier

Thu, Oct 22 - Fri, Oct 23

7:39 pm - 7:31 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

12h 52m1 stop Orlando

8:46 am - 6:54 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

9h 08m1 stop Orlando

$255Frontier

Sat, Oct 17 - Sat, Oct 24

Cheap last minute flights

Enter your travel dates to find the best prices.

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$321Frontier

Mon, Sep 21 - Wed, Sep 30

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$330Frontier

Wed, Sep 23 - Fri, Sep 25

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$330Frontier

Mon, Sep 21 - Wed, Sep 23

7:39 pm - 10:20 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

15h 41m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$330Frontier

Wed, Sep 23 - Thu, Sep 24

7:39 pm - 10:20 amTTN Trenton-Mercer-ORD Chicago O'Hare Intl

15h 41m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$340Frontier

Sat, Sep 19 - Sun, Sep 27

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$341Frontier

Sun, Sep 20 - Tue, Sep 22

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$360Frontier

Sat, Sep 19 - Sat, Sep 26

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$360Frontier

Wed, Sep 23 - Fri, Sep 25

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$360Frontier

Sun, Sep 20 - Wed, Sep 23

7:39 pm - 10:59 pmTTN Trenton-Mercer-ORD Chicago O'Hare Intl

28h 20m1 stop Orlando

3:50 pm - 6:42 pmORD Chicago O'Hare Intl-TTN Trenton-Mercer

25h 52m1 stop Orlando

$360Frontier

Mon, Sep 21 - Thu, Sep 24

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Frontier flights from Trenton, New Jersey to Illinois

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

Frontier

Oct 12

TTN7:39 pmTrenton-Mercer

13h 12m

1 stop

ORD7:51 amChicago O'Hare Intl

Oct 16

ORD8:11 pmChicago O'Hare Intl

21h 43m

1 stop

TTN6:54 pmTrenton-Mercer

$215

Frontier

Nov 24

TTN9:52 pmTrenton-Mercer

27h 51m

1 stop

ORD12:43 amChicago O'Hare Intl

Nov 27

ORD6:30 amChicago O'Hare Intl

13h 27m

1 stop

TTN8:57 pmTrenton-Mercer

$222

Frontier

Oct 10

TTN7:39 pmTrenton-Mercer

12h 52m

1 stop

ORD7:31 amChicago O'Hare Intl

Oct 16

ORD8:11 pmChicago O'Hare Intl

21h 43m

1 stop

TTN6:54 pmTrenton-Mercer

$230

Allegiant Air flights from Trenton, New Jersey to Illinois

Our best Allegiant Air deals on Trenton, New Jersey to Illinois flight tickets

Allegiant Air

Oct 16

TTN6:44 pmTrenton-Mercer

22h 19m

1 stop

RFD4:03 pmChicago Greater Rockford

Oct 19

RFD10:39 amChicago Greater Rockford

6h 07m

1 stop

TTN5:46 pmTrenton-Mercer

$410

Allegiant Air

Nov 23

TTN12:08 pmTrenton-Mercer

6h 40m

1 stop

RFD5:48 pmChicago Greater Rockford

Nov 28

RFD5:51 pmChicago Greater Rockford

16h 23m

1 stop

TTN11:14 amTrenton-Mercer

$767

momondo Fare Finder

Use the filters below to find and compare flights from Trenton, New Jersey to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Mon 10/12

7:39 pm-7:51 am

1 stop13h 12m

Chicago O'Hare Intl

Fri 10/16

8:11 pm-6:54 pm

1 stop21h 43m

$215

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Tue 11/24

9:52 pm-12:43 am

1 stop27h 51m

Chicago O'Hare Intl

Fri 11/27

6:30 am-8:57 pm

1 stop13h 27m

$222

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Sat 12/12

11:03 am-1:01 am

1 stop14h 58m

Chicago O'Hare Intl

Mon 12/14

5:35 am-10:18 am

1 stop27h 43m

$222

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Sat 10/10

7:39 pm-7:31 am

1 stop12h 52m

Chicago O'Hare Intl

Fri 10/16

8:11 pm-6:54 pm

1 stop21h 43m

$230

Quickest round-trip

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Sat 10/17

7:39 pm-7:31 am

1 stop12h 52m

Chicago O'Hare Intl

Sat 10/24

8:46 am-6:54 pm

1 stop9h 08m

$236

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Sat 10/17

7:39 pm-7:31 am

1 stop12h 52m

Chicago O'Hare Intl

Sat 10/24

8:46 am-6:54 pm

1 stop9h 08m

$239

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Sat 12/12

11:03 am-1:01 am

1 stop14h 58m

Chicago O'Hare Intl

Mon 12/14

5:35 am-10:18 am

1 stop27h 43m

$242

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Sun 11/22

9:52 pm-12:43 am

1 stop27h 51m

Chicago O'Hare Intl

Wed 11/25

5:40 am-10:34 am

1 stop27h 54m

$246

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Thu 10/22

7:39 pm-7:31 am

1 stop12h 52m

Chicago O'Hare Intl

Fri 10/23

8:11 pm-6:54 pm

1 stop21h 43m

$255

TrentonChicago

TTN Trenton-Mercer - ORD Chicago O'Hare Intl

TTNORD

Trenton-Mercer

Sat 10/17

7:39 pm-7:31 am

1 stop12h 52m

Chicago O'Hare Intl

Sat 10/24

8:46 am-6:54 pm

1 stop9h 08m

$255

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 Illinois

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 airline that flies from Trenton-Mercer to Illinois?

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

What airlines fly to Illinois?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Illinois from Trenton, New Jersey according to our data. United Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

Cheap Trenton, New Jersey to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trenton, New Jersey to Illinois

Best Price Found	$88
Fastest flight time	12h 52m
Direct flights	None

The best one-way flight to Illinois from Trenton, New Jersey in the past 72 hours is $88. The best round-trip flight deal from Trenton, New Jersey to Illinois found on momondo in the last 72 hours is $215.

The fastest flight from Trenton, New Jersey to Illinois takes 12h 52m

There are no direct flights from Trenton, New Jersey to Illinois. There are no popular flight routes from Trenton, New Jersey to Illinois.

Search flight deals

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

When did momondo last update prices for flights from Trenton-Mercer Airport to Illinois?
Prices for flights from Trenton-Mercer Airport to Illinois were last updated today.
How old do you have to be to fly from Trenton-Mercer Airport to Illinois?
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 Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Trenton to Illinois. momondo saves you time and could save you money on your trip.

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

Flights from Trenton to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Trenton.

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

Price alerts on flights to Illinois from Trenton are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.