Cheap Flights from Philadelphia Trenton-Mercer to Chicago

Compare Philadelphia Trenton-Mercer to Chicago flight deals

Find the cheapest month or even day of the year to fly to Chicago

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Flight deals from Philadelphia Trenton-Mercer to Chicago

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia Trenton-Mercer Airport to Chicago? If you want to travel next month, round-trip fares start from AED 798. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Philadelphia Trenton-Mercer to Chicago

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia Trenton-Mercer to Chicago flights are currently cheapest in September.

Alternative Philadelphia Trenton-Mercer to Chicago routes

Looking for the cheapest, fastest or easiest route from Philadelphia Trenton-Mercer to Chicago? You could fly into the following airports instead.

Philadelphia to Chicago: Flight information

The things to know before you go.
Cheapest flight foundAED 417
Cheapest month to flySeptember

Finding cheap flights from Philadelphia Trenton-Mercer to Chicago: Frequently asked questions

There are 4 airports in Chicago: Chicago Midway, Chicago O'Hare International, Chicago Dupage County, and Chicago Rockford.
The best price we found for a round-trip flight from Philadelphia Trenton-Mercer to Chicago is AED 795. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Philadelphia Trenton-Mercer to Chicago. But we found flights with one or more stops from AED 795.
There are no flights flying from Philadelphia Trenton-Mercer to Chicago, as of May 2026.
The cheapest month to fly from Philadelphia Trenton-Mercer to Chicago is usually September.
If you're flying from Philadelphia Trenton-Mercer Airport, the cheapest airport near Chicago is Chicago O'Hare International – which is 25.4 km away from the center of Chicago. We've found flights to this airport from AED 795.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia Trenton-Mercer Airport to Chicago on Saturday, September 26, 2026.
No airlines currently offer direct flights between Philadelphia Trenton-Mercer Airport and Chicago. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 13°C. July is typically the warmest month in Chicago, when it usually averages around 26°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is August.
Currently, Frontier Airlines offers the cheapest flight tickets to Chicago.

Traveling from Trenton-Mercer Airport (TTN) to Chicago: what you need to know

  • The timezone in Chicago is UTC-6. The city is one hour behind Philadelphia, where Trenton-Mercer Airport is located.

  • Allow plenty of time to get on your TTN to Chicago flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months like March, it's a good idea to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead of an international flight when you fly during high season in general.

  • The journey from central Philadelphia to TTN takes about 1 hour 35 minutes on public transport. If you ride-share, drive or grab a cab, you'll cover the 48 kilometers in 40 minutes or so, depending on traffic conditions.

  • Want a hassle-free start to your travels? Stay near TTN. Whether you're taking an early flight from Trenton-Mercer Airport to Chicago or don't want departure day to feel hectic, these hotels have you covered:

  • When it comes to the on-time performance of Trenton-Mercer Airport, 76% of flights arrive within the expected time frame.

  • TTN's address is Scotch Road, Terminal Building.

How to find the cheapest flights from Trenton-Mercer Airport (TTN) to Chicago

  • AED 417 is currently the best price for a one-way Trenton-Mercer Airport to Chicago flight. Return plane tickets start from AED 795. These prices may change depending on demand and availability.

  • Don't leave things to the last moment. You're more likely to land cheap flights from TTN to Chicago if you book early. Airlines often have some amazing early bird deals.

  • The 'Whole month' tool will show you the cheapest tickets from Trenton-Mercer Airport to Chicago across the month. It's a good way to snap up a bargain if your travel plans aren't set in stone.

  • Snapping up a cheap flight from TTN to Chicago is a breeze with Price Alerts. All you need to do is set up one of these automatic notifications and we'll notify you as soon as a deal gets even better.

  • Select your preferred arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Trenton-Mercer Airport to Chicago by 'Fastest,' 'Best' or 'Cheapest.'

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • The distance from Chicago O'Hare International Airport (ORD) to central Chicago is roughly 27 kilometers. It'll take you about 30 minutes to get to the center driving.

  • Traveling on public transport typically takes 45 minutes.

  • The last thing you need is a lengthy journey to your hotel if you're getting in late on a flight from Trenton-Mercer Airport to Chicago. Stay at one of these accommodation options near ORD instead:

  • Lock in the lowest price by reserving your ride from Chicago O'Hare International Airport around four weeks in advance of your flight from TTN to Chicago.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • After your flight from Trenton-Mercer Airport to Chicago has hit the runway, you can make your way to the city center in about 25 minutes by car. Central Chicago is roughly 16 kilometers from Chicago Midway International Airport (MDW).

  • If you're traveling on public transport, it'll take around 30 minutes.

  • Following your TTN to Chicago flight, tuck yourself in at a hotel close to MDW. These are some great accommodation options that'll help you switch to relaxation mode:

  • Don't pay more than you need to. Booking your ride four weeks ahead of your arrival at MDW can get you a lower rate.

  • The address for Chicago Midway International Airport is 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • Find your way to the city center after your flight from Trenton-Mercer Airport to Chicago has touched down. Central Chicago is about 145 kilometers from Chicago Rockford International Airport (RFD) and takes roughly 1 hour 40 minutes to reach by cab or ride-share.

  • The journey takes about 2 hours when traveling by public transport.

  • Enjoy a low-stress, comfortable start to your trip by checking in to a hotel near RFD after your TTN to Chicago flight. Recover from a day of travel or just give yourself time to get your bearings in a new city at:

  • Rental companies sometimes offer promotions for early bookings, so reserve your vehicle from RFD well ahead of your flight from Trenton-Mercer Airport to Chicago. A little prep work can make a big difference in cost.

  • The street address for Chicago Rockford International Airport is 2 Airport Cir.

Best time to go to Chicago

  • January is the quietest month for flights from Trenton-Mercer Airport to Chicago, while July is the most popular. Choose the ideal time to visit Chicago based on whether you prefer a laid-back vibe or a lively atmosphere.

  • Before booking a Trenton-Mercer Airport to Chicago plane ticket, think about what kind of weather you prefer. July is the warmest month in Chicago, with temperatures ranging from 16ºC (61ºF) to 28ºC (82ºF).

  • January has average temperatures of between -12ºC (10ºF) and 3ºC (37ºF). Search for a cheap ticket from TTN to Chicago around that time if you like traveling in cooler conditions.

More about Chicago

  • When it comes to searching for somewhere to rest your head, you'll find the top stays in Chicago right here. Browse these options as soon as you've booked your flight from Trenton-Mercer Airport to Chicago:

  • There are so many things to discover in this city it can be tricky to know where to start. Art Institute of Chicago, Millennium Park and Willis Tower are leading attractions which should be on any well-planned Chicago itinerary.

Explore more of the United States

  • Chicago has loads to offer, but there are so many other parts of the United States you'll want to see. Around 451 kilometers southeast of Chicago, a trip to Columbus will keep you on the go. Start with leading sights like Franklin Park Conservatory and Botanical Gardens, Whetstone Park / Park of Roses and Ohio Theater.

  • If you're ready to explore another side of the United States, consider Indianapolis, about 257 kilometers southeast of Chicago. Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.