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$53+ Cheap flights from Trenton (TTN) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — ORD
Oct 28 — Nov 41
Mon 10/28
Mon 11/4
1 adult, Economy
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TTN - ORD
Oct 28 - Nov 4

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Find flight deals from Trenton to Illinois

Cheapest flights from Trenton to Illinois
Explore the most affordable flight options available from Trenton to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2024.

This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/910:11 amTTN - ORD
1 stop11h 59mFrontier
Thu 12/129:35 amORD - TTN
1 stop13h 22mFrontier
Deal found 10/22$108
This KAYAK deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1211:32 amTTN - STL
1 stop12h 52mFrontier
Tue 12/173:53 pmSTL - TTN
1 stop6h 51mFrontier
Deal found 10/21$188

Find flights from Trenton to Illinois within your budget

Customize your flight search to find flights from Trenton to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,464,459 searches. Data last updated October 23, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$108 - $188

Route

Depart

Return

Price

Trenton-MercerChicago O'Hare Intl

TTN - ORD

TTNORD

Trenton-Mercer

Mon 12/9

1 stop11h 59m

Chicago O'Hare Intl

Thu 12/12

1 stop13h 22m

$108

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Thu 12/12

1 stop12h 52m

Lambert-St Louis

Tue 12/17

1 stop6h 51m

$188

Flights are sorted by cheapest first

Deals found on 10/22

Best time to book a flight from Trenton to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Trenton to Illinois

Get recent, data-driven insights about flights from Trenton to Illinois including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Trenton, New Jersey to Illinois?

Currently, September is the cheapest month in which you can book a flight from Trenton, New Jersey to Illinois (average of $232). Flying from Trenton, New Jersey to Illinois in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TTN to IL?

Find hourly flight availability from Trenton to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 23, 2024.

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.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated October 23, 2024.
Frontier
6.1
Okay
3,612 reviews

Food

4.9

Overall

6.1

Boarding

6.4

Crew

6.9

Comfort

5.7

Entertainment

4.7

Reviews

1 / 10

They will charge you extra money for the small cabin suitcase. About $69 for nothing Or $100 if you pay a the the gate It’s a bait and switch thing. Of course nobody will tell you that before.

Frontier
6.1
Okay
3,612 reviews
Frontier
6.1
Okay
3,612 reviews

Food

4.9

Overall

6.1

Boarding

6.4

Crew

6.9

Comfort

5.7

Entertainment

4.7

Reviews

1 / 10

They will charge you extra money for the small cabin suitcase. About $69 for nothing Or $100 if you pay a the the gate It’s a bait and switch thing. Of course nobody will tell you that before.

Related info for your journey

Find useful and relevant information for your journey from Trenton to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Trenton to Illinois?

    For a flight from Trenton to Illinois, you will be flying from Trenton-Mercer. Trenton-Mercer (TTN) is just 4.8 mi from the center of the city.

  • Can I find flights from Trenton, New Jersey to Illinois for under $200 on Cheapflights?

    Yes, there are multiple flights from Trenton, New Jersey to Illinois for under $200. The cheapest flight booked recently is on Frontier for just $108, but on average you can expect to pay $148.

  • Are there last-minute flights available from Trenton, New Jersey to Illinois for under $300?

    There are currently 1+ open flights from Trenton, New Jersey to Illinois within the next 7 days for less than $300.

  • What are the most popular routes from Trenton, New Jersey to Illinois?

    Most travelers choose Trenton-Mercer - Chicago O'Hare Intl, Trenton-Mercer - Lambert-St Louis or Trenton-Mercer - Chicago Greater Rockford when deciding on the best route from Trenton, New Jersey to Illinois.

  • What does TTN to ORD mean?

    TTN and ORD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. TTN to ORD refers to a flight route from Trenton-Mercer Airport to Chicago O'Hare Intl Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI).

  • Can I find deals for flights from Trenton to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Trenton to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Trenton to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Trenton to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Trenton to Illinois that include hotel bookings?

    Yes. In addition to deals on Trenton to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trenton to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trenton to Illinois.

  • Can I find deals for business class flights from Trenton to Illinois?

    Yes. Cheapflights offers flight deals from Trenton to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Trenton to Illinois that allow pets onboard?

    Many airlines flying from Trenton to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Trenton to Illinois?

    Yes, you can often find last-minute deals on Trenton to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Trenton, New Jersey to Illinois flight deals updated?

    The Trenton, New Jersey to Illinois flight deals you see on this page were last updated on 10/22.

  • What is the cheapest month to book a flight from Trenton, New Jersey to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Trenton, New Jersey to Illinois (average of $232). Flying from Trenton, New Jersey to Illinois in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Trenton to Illinois

Discover the top airline that operate flights from Trenton to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,464,459 searches. Data last updated October 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$248FlexibilityNo cancel feeOn-time62%
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