TTN

$64 Find Cheap Flights from Illinois to Trenton

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Trenton departing on 2/28. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Trenton

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$148
Frontier
Thu 2/19Mon 2/23
ORD - TTN • 1 stop
Cheapest one-way
$64
Frontier
Sat 2/28
STL - TTN • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Trenton!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Trenton

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Trenton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Trenton

Thu, Feb 19 - Mon, Feb 23
Frontier Logo
12:01 pm - 11:39 pm
ORD
-
TTN
10h 38m
1 stop
Frontier Logo
6:00 am - 11:15 pm
TTN
-
ORD
18h 15m
1 stop
$148Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
12:01 pm - 11:39 pm
ORD
-
TTN
10h 38m
1 stop
Frontier Logo
11:54 am - 11:15 pm
TTN
-
ORD
12h 21m
1 stop
$154Frontier
Thu, Apr 16 - Mon, Apr 20
Frontier Logo
10:25 am - 11:59 pm
ORD
-
TTN
12h 34m
1 stop
Frontier Logo
6:00 am - 2:17 pm
TTN
-
ORD
9h 17m
1 stop
$160Frontier
Wed, Feb 25 - Mon, Mar 2
Frontier Logo
8:30 am - 9:46 am
ORD
-
TTN
24h 16m
1 stop
Frontier Logo
11:54 am - 11:15 pm
TTN
-
ORD
12h 21m
1 stop
$166Frontier
Sat, Feb 7 - Sat, Feb 14
Frontier Logo
11:00 am - 11:26 am
STL
-
TTN
23h 26m
1 stop
Frontier Logo
8:00 am - 11:59 pm
TTN
-
STL
16h 59m
1 stop
$172Frontier
Sat, Feb 21 - Mon, Feb 23
Frontier Logo
9:41 am - 11:39 pm
STL
-
TTN
12h 58m
1 stop
Frontier Logo
6:00 am - 11:59 pm
TTN
-
STL
18h 59m
1 stop
$176Frontier
Tue, Feb 10 - Sat, Feb 14
Frontier Logo
3:49 pm - 11:39 pm
STL
-
TTN
6h 50m
1 stop
Frontier Logo
12:45 pm - 11:59 pm
TTN
-
STL
12h 14m
1 stop
$181Frontier
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
11:51 am - 7:48 pm
ORD
-
TTN
6h 57m
1 stop
Frontier Logo
8:27 pm - 3:52 pm
TTN
-
ORD
20h 25m
1 stop
$187Frontier
Tue, Mar 10 - Wed, Mar 11
Frontier Logo
4:18 pm - 11:59 pm
ORD
-
TTN
6h 41m
1 stop
Frontier Logo
6:00 am - 3:38 pm
TTN
-
ORD
10h 38m
1 stop
$190Frontier
Mon, Feb 2 - Mon, Feb 9
Frontier Logo
11:51 am - 2:26 pm
ORD
-
TTN
25h 35m
1 stop
Frontier Logo
8:27 pm - 3:52 pm
TTN
-
ORD
20h 25m
1 stop
$192Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$64
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from St. Louis to Trenton

FAQs for booking flights from Illinois to Trenton

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

    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 Illinois to Trenton.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trenton from Illinois 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 Illinois to Trenton?

    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 Trenton with an airline and back to Illinois with another airline.

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

    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 Trenton from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Trenton

Information on the airport you'll fly into in Trenton

Trenton (TTN)