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Find cheap flights from Trenton to Illinois from $53

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Trenton to Illinois departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 5/30
Thu 6/6

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stop$106
St. Louis
St. Louis1 stop$176

Good to know

Low season

November

High season

June

Cheapest flight

$53
Best time to beat the crowds with an average 85% drop in price.
Most popular time to fly and prices are also 57% lower on average.
Flight from Trenton to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Trenton to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Trenton to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trenton to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Trenton is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Trenton to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Illinois with an airline and back to Trenton with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trenton to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Illinois from Trenton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 13% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airlines flying from Trenton to Illinois

 
Need help choosing which airline to fly with from Trenton to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.4
Spirit AirlinesOverall score based on 8741 reviews
5.3Food
5.9Comfort
6.7Boarding
5.2Entertainment
7.2Crew
Airline reviews

Pretty good. Would’ve been excellent if we would have left on time and the crew wasn’t late.

8.0 ExcellentCynthia, Apr 2024EWR - MCO
Read more about Spirit Airlines reviews

Pretty good. Would’ve been excellent if we would have left on time and the crew wasn’t late.

Spirit airline tries to screw you at every opportunity. Spirit wanted 65$ for an extra pound in the suitcase Made me open the suitcase at the counter to remove 1 pound. Staff very cold and rude Will never fly spirit again and will recommend same to family and friends

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

My experience was above excellent!!!! First the lady that pushed me in the wheelchair to the gate was outstanding!!! Then the ladies at the gate went over and beyond, by helping me fill out the immigration form! I would not have been able to get to Guatemala without their help!!! God bless them all! They were amazing 🙏❤️🙏

They took a horrible route with a lot of turbulence and I eneded up getting sick. Even if the flight takes longer. Don't put people life at risk just to get to the airport on time.

Every thing was fine ,low price,easy on time ,clean, good staff, really no issues

Had to board plan 2x due to lack of security check after 1st boarding

Miserable. The crew was rude, the flight was delayed 5 hours for mechanical reasons and then “weather” even though other planes were leaving.

They kept Changing the flight times. It was delayed several times and at one point it was supposed to depart at 3.40am! At which point we ended up staying overnight and booked long a separate United flight for early morning departure. The spirit flight then got moved up and left at 1.30 in the morning when it was supposed to leave at 9.40pm the night before.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Book cheap flights from Trenton to Illinois

Recent round-trip flight deals

5/14Tue
1 stopFrontier
8h 52mTTN-ORD
5/15Wed
1 stopFrontier
10h 51mORD-TTN
$106
5/14Tue
1 stopFrontier
8h 52mTTN-ORD
5/15Wed
1 stopFrontier
10h 51mORD-TTN
$120
5/14Tue
1 stopFrontier
8h 52mTTN-ORD
5/21Tue
1 stopFrontier
20h 35mORD-TTN
$125
5/15Wed
1 stopFrontier
28h 09mTTN-ORD
5/21Tue
1 stopFrontier
20h 35mORD-TTN
$132
5/14Tue
1 stopFrontier
8h 52mTTN-ORD
5/20Mon
1 stopFrontier
12h 42mORD-TTN
$134
6/1Sat
1 stopFrontier
7h 03mTTN-ORD
6/5Wed
1 stopFrontier
12h 45mORD-TTN
$135
5/17Fri
1 stopFrontier
28h 35mTTN-ORD
5/21Tue
1 stopFrontier
20h 35mORD-TTN
$136
5/18Sat
1 stopFrontier
7h 19mTTN-ORD
5/20Mon
1 stopFrontier
12h 42mORD-TTN
$137
5/14Tue
1 stopFrontier
8h 52mTTN-ORD
5/23Thu
1 stopFrontier
19h 46mORD-TTN
$140
6/4Tue
1 stopFrontier
17h 40mTTN-ORD
6/18Tue
1 stopFrontier
25h 45mORD-TTN
$144

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Recent one-way flight deals

5/14Tue
1 stopFrontier
8h 52mTTN-ORD
$53
6/5Wed
1 stopFrontier
6h 48mTTN-ORD
$59
5/14Tue
1 stopFrontier
8h 52mTTN-ORD
$60
8/14Wed
1 stopFrontier
8h 28mTTN-ORD
$64
5/29Wed
1 stopFrontier
8h 41mTTN-ORD
$68
5/15Wed
1 stopFrontier
23h 23mTTN-ORD
$70
5/20Mon
1 stopFrontier
7h 25mTTN-ORD
$75
6/3Mon
1 stopFrontier
7h 04mTTN-ORD
$76
6/26Wed
1 stopFrontier
6h 48mTTN-ORD
$83
5/21Tue
1 stopFrontier
17h 40mTTN-ORD
$85

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Last minute flights from Trenton to Illinois

Last minute flight, train and bus deals

5/2Thu
multi-stopFrontier
17h 26mTTN-ORD
5/7Tue
multi-stopFrontier
13h 45mORD-TTN
$188
5/5Sun
multi-stopFrontier
8h 47mTTN-ORD
5/7Tue
multi-stopFrontier
13h 45mORD-TTN
$192
5/3Fri
multi-stopFrontier
26h 44mTTN-ORD
5/7Tue
multi-stopFrontier
13h 45mORD-TTN
$198
5/5Sun
multi-stopFrontier
8h 47mTTN-ORD
5/7Tue
multi-stopFrontier
13h 45mORD-TTN
$200
5/4Sat
multi-stopFrontier
15h 02mTTN-STL
5/7Tue
multi-stopFrontier
12h 20mSTL-TTN
$226
5/2Thu
multi-stopFrontier
17h 26mTTN-ORD
5/6Mon
multi-stopFrontier
10h 36mORD-TTN
$226
5/1Wed
multi-stopFrontier
15h 23mTTN-ORD
5/9Thu
multi-stopFrontier
13h 45mORD-TTN
$227
5/2Thu
multi-stopFrontier
17h 26mTTN-ORD
5/6Mon
multi-stopFrontier
22h 27mORD-TTN
$228
5/2Thu
multi-stopFrontier
17h 26mTTN-ORD
5/6Mon
multi-stopFrontier
22h 27mORD-TTN
$230
5/1Wed
multi-stopFrontier
15h 23mTTN-ORD
5/7Tue
multi-stopFrontier
13h 45mORD-TTN
$232

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Trenton - Illinois Flights

Departure:

Trenton (TTN)United States

Return flight deals:

Illinois - Trenton

Cabin classes: