Vuelos de Frontier Airlines de Trenton (TTN) a Chicago (ORD) desde $54

It’s wise to know about any travel advice reports and quarantine requirements in effect in your destination. Make sure you go to the Covid-19 Travel Advisor for up-to-date information on catching a flight to O’Hare Intl. Airport (ORD).

Once you’ve received your ticket for your flight from Trenton–Mercer Airport to ORD, you should be able to see which terminals Frontier Airlines flies into and out of. If not, ask your airline or do some online research for those details.

Be prepared to make a stopover when jetting from Trenton–Mercer Airport to O’Hare Airport, as Frontier Airlines doesn’t offer direct flights between these two locations. While waiting for your connection, you might like to buy a new novel or a travel magazine from the airport bookstore to help pass the time.

Squeeze in some in-flight shut-eye and start your getaway feeling refreshed. You’ll have plenty of time to do so when traveling with Frontier Airlines between Mercer Airport (TTN) and O’Hare Airport, with the flight taking roughly 5 hours and 59 minutes.

Every week, there are about 7 Frontier Airlines flights that connect TTN and O’Hare Airport.

For more info about changing your flight to O’Hare Airport, please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.