Travelers have found it’s best to book a flight 56 days in advance to save up to 96% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 56 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Trenton, New Jersey to Illinois 1-2 weeks in advance for as low as $281, or $423 for flights within the next 24 hours.
Flights from Trenton, New Jersey to Illinois lean towards being more expensive in June. Prices are generally better when you fly from Trenton, New Jersey to Illinois in January, with the cheapest ticket starting at $86.
When flying from Trenton, New Jersey to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$116 - $180
Route
Depart
Return
Price
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Wed 6/12
1 stop6h 48m
Chicago O'Hare Intl
Thu 6/13
1 stop12h 13m
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Wed 6/12
1 stop6h 48m
Chicago O'Hare Intl
Wed 6/26
1 stop12h 44m
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Wed 6/12
1 stop6h 48m
Chicago O'Hare Intl
Tue 6/18
1 stop25h 43m
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Wed 9/11
1 stop8h 28m
Chicago O'Hare Intl
Fri 9/13
1 stop12h 40m
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Wed 7/24
1 stop6h 43m
Chicago O'Hare Intl
Tue 8/6
1 stop13h 57m
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Mon 7/1
1 stop10h 32m
Chicago O'Hare Intl
Thu 7/4
1 stop12h 21m
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Thu 7/4
1 stop28h 35m
Chicago O'Hare Intl
Tue 7/9
1 stop24h 51m
Trenton-MercerChicago O'Hare Intl
TTN - ORD
TTNORD
Trenton-Mercer
Mon 7/1
1 stop7h 28m
Chicago O'Hare Intl
Tue 7/9
1 stop24h 51m
Trenton-MercerLambert-St Louis
TTN - STL
TTNSTL
Trenton-Mercer
Sat 8/31
1 stop13h 07m
Lambert-St Louis
Mon 9/2
1 stop9h 16m
No data available for this route at this time. Please check back soon.
Comfort
Crew
Food
Boarding
Entertainment
Overall
Reviews
I'd thought there would be a complimentary drink atleast.
Deals for Trenton to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Trenton.
Need flexible booking options for your flight to Illinois from Trenton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Yes, Cheapflights offers price alerts on Trenton to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.