What is the cheapest airline that flies from Trenton-Mercer to Illinois?

Frontier is the most popular carrier operating from Trenton-Mercer 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.

$53 Cheap Flights from Trenton to Illinois in 2024/25

1 adult

0 bags

"This year, momondo is the #1 place for airfares on the internet."

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Trenton, New Jersey to Illinois

Round-tripOne-wayLast minute

Cheap round-trip flights

These are some of the best round-trip flight deals from Trenton, New Jersey to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Trenton, New Jersey to Illinois.

Cheap last minute flights

Planning a quick getaway from Trenton, New Jersey to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Trenton, New Jersey to Illinois

Find recent round-trip train or bus tickets from Trenton, New Jersey to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.

12:41 pm - 11:57 pmTTN-ORD

12h 16m1 stop

10:29 am - 11:39 pmORD-TTN

12h 10m1 stop

$127Frontier

Find Deal

Tue, Dec 17 - Wed, Dec 18

6:00 am - 4:23 pmTTN-ORD

11h 23m1 stop

10:33 am - 11:59 pmORD-TTN

12h 26m1 stop

$128Frontier

Find Deal

Mon, Jan 27 - Thu, Jan 30

6:00 am - 11:24 pmTTN-STL

18h 24m1 stop

5:02 pm - 9:35 pmSTL-TTN

27h 33m1 stop

$138Frontier

Find Deal

Mon, Dec 9 - Tue, Dec 10

11:27 am - 11:27 pmTTN-STL

13h 00m1 stop

5:05 pm - 10:30 amSTL-TTN

16h 25m1 stop

$148Frontier

Find Deal

Thu, Jan 9 - Sun, Jan 12

10:11 am - 9:10 pmTTN-ORD

11h 59m1 stop

9:35 am - 11:57 pmORD-TTN

13h 22m1 stop

$158Frontier

Find Deal

Mon, Dec 9 - Thu, Dec 12

7:15 am - 11:27 pmTTN-STL

17h 12m1 stop

5:05 pm - 9:35 pmSTL-TTN

27h 30m1 stop

$163Frontier

Find Deal

Wed, Jan 8 - Fri, Jan 10

2:41 pm - 9:24 amTTN-ORD

19h 43m1 stop

7:29 pm - 1:25 pmORD-TTN

16h 56m1 stop

$188Frontier

Find Deal

Tue, Dec 17 - Thu, Dec 19

7:15 am - 8:24 amTTN-ORD

26h 09m1 stop

10:59 am - 11:57 pmORD-TTN

11h 58m1 stop

$210Frontier

Find Deal

Wed, Dec 11 - Fri, Dec 13

6:00 am - 11:31 pmTTN-STL

18h 31m1 stop

8:22 am - 10:37 amSTL-TTN

25h 15m1 stop

$218Frontier

Find Deal

Thu, Jan 23 - Sun, Jan 26

7:15 am - 8:24 amTTN-ORD

26h 09m1 stop

10:59 am - 11:57 pmORD-TTN

11h 58m1 stop

$218Frontier

Find Deal

Wed, Dec 11 - Fri, Dec 13

1:01 pm - 7:39 pmTTN-ORD

7h 38m1 stop

$53Frontier

Find Deal

Sat, Feb 22

2:10 pm - 11:27 pmTTN-STL

10h 17m1 stop

$60Frontier

Find Deal

Tue, Jan 7

6:00 am - 4:23 pmTTN-ORD

11h 23m1 stop

$60Frontier

Find Deal

Mon, Jan 27

7:15 am - 11:31 pmTTN-STL

17h 16m1 stop

$62Frontier

Find Deal

Tue, Feb 4

2:41 pm - 9:24 amTTN-ORD

19h 43m1 stop

$62Frontier

Find Deal

Tue, Dec 17

7:15 am - 8:24 amTTN-ORD

26h 09m1 stop

$63Frontier

Find Deal

Wed, Dec 11

7:15 am - 11:31 pmTTN-STL

17h 16m1 stop

$65Frontier

Find Deal

Sat, Feb 8

7:15 am - 9:52 amTTN-ORD

27h 37m1 stop

$65Frontier

Find Deal

Sat, Feb 8

9:01 pm - 11:31 pmTTN-STL

27h 30m1 stop

$72Frontier

Find Deal

Fri, Jan 31

6:00 am - 11:31 pmTTN-STL

18h 31m1 stop

$75Frontier

Find Deal

Sun, Feb 2

6:31 pm - 7:16 pmTTN-ORD

25h 45m1 stop

2:25 pm - 5:46 pmORD-TTN

26h 21m1 stop

$262Frontier

Find Deal

Mon, Nov 25 - Wed, Nov 27

9:39 am - 5:00 pmTTN-ORD

8h 21m1 stop

8:21 pm - 5:46 pmORD-TTN

20h 25m1 stop

$374Frontier

Find Deal

Sun, Nov 24 - Sun, Nov 24

11:26 am - 6:55 pmTTN-ORD

8h 29m1 stop

8:21 pm - 5:46 pmORD-TTN

20h 25m1 stop

$418Frontier

Find Deal

Sat, Nov 23 - Sun, Nov 24

6:31 pm - 7:41 amTTN-STL

14h 10m1 stop

7:30 am - 5:46 pmSTL-TTN

9h 16m1 stop

$539Frontier

Find Deal

Fri, Nov 22 - Sun, Nov 24

6:31 pm - 7:16 pmTTN-ORD

25h 45m1 stop

8:21 pm - 5:46 pmORD-TTN

20h 25m1 stop

$553Frontier

Find Deal

Sun, Nov 24 - Tue, Nov 26

6:31 pm - 7:41 amTTN-STL

14h 10m1 stop

6:32 pm - 5:46 pmSTL-TTN

22h 14m1 stop

$558Frontier

Find Deal

Fri, Nov 22 - Mon, Nov 25

6:31 pm - 6:55 pmTTN-ORD

25h 24m1 stop

8:21 pm - 5:46 pmORD-TTN

20h 25m1 stop

$607Frontier

Find Deal

Fri, Nov 22 - Mon, Nov 25

6:31 pm - 7:41 amTTN-STL

14h 10m1 stop

7:30 am - 5:46 pmSTL-TTN

9h 16m1 stop

$663Frontier

Find Deal

Fri, Nov 22 - Sun, Nov 24

6:31 pm - 1:20 pmTTN-ORD

19h 49m1 stop

11:05 am - 10:31 amORD-TTN

22h 26m1 stop

$705Frontier

Find Deal

Tue, Nov 26 - Fri, Nov 29

6:31 pm - 1:20 pmTTN-ORD

19h 49m1 stop

7:50 pm - 5:46 pmORD-TTN

20h 56m1 stop

$979Frontier

Find Deal

Tue, Nov 26 - Sat, Nov 30

Frontier flights from Trenton, New Jersey to Illinois

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

Frontier

Dec 17

TTN12:41 pmTrenton-Mercer

12h 16m

1 stop

ORD11:57 pmChicago O'Hare Intl

Dec 18

ORD10:29 amChicago O'Hare Intl

12h 10m

1 stop

TTN11:39 pmTrenton-Mercer

$127

Find similar

Frontier

Jan 27

TTN6:00 amTrenton-Mercer

11h 23m

1 stop

ORD4:23 pmChicago O'Hare Intl

Jan 30

ORD10:33 amChicago O'Hare Intl

12h 26m

1 stop

TTN11:59 pmTrenton-Mercer

$128

Find similar

Frontier

Dec 9

TTN6:00 amTrenton-Mercer

18h 24m

1 stop

STL11:24 pmLambert-St Louis

Dec 10

STL5:02 pmLambert-St Louis

27h 33m

1 stop

TTN9:35 pmTrenton-Mercer

$138

Find similar

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

Prices

Airlines

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Trenton, New Jersey to Illinois is on a Monday when prices can be found for as low as $0. Flights from Trenton, New Jersey to Illinois on a Sunday will generally be more expensive and average around $270. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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	$53
Fastest flight time	6h 32m
Direct flights	None
Airports in Illinois	2 airports

The best one-way flight to Illinois from Trenton, New Jersey in the past 72 hours is $53. The best round-trip flight deal from Trenton, New Jersey to Illinois found on momondo in the last 72 hours is $127.

The fastest flight from Trenton, New Jersey to Illinois takes 6h 32m

There are no direct flights from Trenton, New Jersey to Illinois. Popular non-direct routes for this connection are Trenton-Mercer Airport - Chicago O'Hare Intl Airport and Trenton-Mercer Airport - Lambert-St Louis Airport.

There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Lambert-St Louis (STL)

Search flight deals

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.