$80 Cheap Flights from St. Louis (STL) to Trenton (TTN)

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Cheap Flights from St. Louis to Trenton (STL-TTN)

Prices were available within the past 7 days and start at $80 for one-way flights and $160 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Flights from St. Louis (STL) to Trenton (TTN)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Mercer
Airlines serving
Frontier Airlines
Roundtrip price
$160
Distance
834 mi

St. Louis to Trenton Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from St. Louis to Trenton offer the perfect respite. Not only does exploring Trenton provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from St. Louis to Trenton may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Trenton are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Trenton more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Trenton is $80 now!

Frequently asked questions

How much is a one-way flight from Lambert Field to Trenton--Mercer Airport?
Get ready to score a top deal, because St. Louis flights to Trenton start from only $86. This is based on the cheapest price found on Expedia for this journey with a departure date within the next three months. This airfare is for an Frontier Airlines flight, leaving Lambert-St. Louis Intl. Airport (STL) on June 27 2024 and arriving at TTN. The price of this flight was updated on May 17 2024 and has not changed since.
Is it cheaper to buy a plane ticket from STL to TTN last minute?
Being a spontaneous soul is a rewarding way to travel the globe, but it isn’t necessarily the cleverest way to grab a bargain fare. Think about booking your STL to Trenton–Mercer Airport trip well in advance instead of leaving it until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Save up that spontaneity for when you’re exploring Trenton–Mercer Airport!
What is the cheapest airline flying from Lambert Field to TTN in the next 90 days?
With plane tickets from $86 for a flight from St. Louis to Trenton, Frontier Airlines is the cheapest airline found on Expedia. This deal is based on airfares found on Expedia departing within the next 90 days and was updated on May 17 2024 and has not changed since. The flight leaves Lambert Field on June 27 2024 and arrives at Mercer Airport (TTN).
What's the cheapest price for a flight from STL to Mercer Airport (TTN) next month?
You can grab a flight from St. Louis to Trenton for just $86. This is the cheapest price for this trip with a departure date in the next month. It’s an Frontier Airlines flight setting off from Lambert Field on June 11 2024 and touching down at Mercer Airport (TTN). The price was correct as of May 17 2024 and has not changed since. It was found after looking through all available flights on Expedia within the next 30 days.
What airports do you fly into for Princeton from Central United States?
Mercer Airport (TTN), Philadelphia Intl. Airport (PHL) and Lehigh Valley Intl. Airport (ABE) are your options when jetting off from Central United States to Princeton. Roughly 9 mi southwest of central Princeton, Mercer Airport (TTN) is the city’s principal hub. Think about things like flight schedules and the distance to your hotel before choosing your airport. Princeton University and Rider University are a couple of great attractions to put on your to-do list when you arrive.
Can I change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Trenton--Mercer Airport?
Make changes quickly to your Lambert-St. Louis Intl. Airport (STL) to Mercer Airport (TTN) journey through the Expedia Trips portal. But before you make any amendments, review the conditions and rules in your itinerary to find out what the carrier will allow you to do and what fees apply for changes. Some carriers charge a change fee per person, on top of any difference in fares. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also stop by our Customer Service portal for further details and to connect with our Virtual Agent.
Trenton nearby Airports
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