$410 Cheap Flights from Trenton (TTN) to Allentown (ABE)

View $410 flight on Fri, Dec 12, 2025Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE)

Cheap Flights from Trenton to Allentown (TTN-ABE)

Prices were available within the past 7 days and start at $410 for one-way flights and $710 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$710 Roundtrip, found 5 days ago
$710
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $710 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$829 Roundtrip, found 5 days ago
$829
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $829 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$915 Roundtrip, found 5 days ago
$915
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $915 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,001 Roundtrip, found 5 days ago
$1,001
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,001 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,043 Roundtrip, found 5 days ago
$1,043
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,043 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,049 Roundtrip, found 5 days ago
$1,049
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,049 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,134 Roundtrip, found 5 days ago
$1,134
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,134 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,220 Roundtrip, found 5 days ago
$1,220
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,220 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,639 Roundtrip, found 5 days ago
$1,639
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,639 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,644 Roundtrip, found 5 days ago
$1,644
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,644 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,847 Roundtrip, found 5 days ago
$1,847
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,847 found 5 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
ABE
Allentown
$1,852 Roundtrip, found 5 days ago
$1,852
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Allentown, returning Sun, Nov 2, priced at $1,852 found 5 days ago

Frequently asked questions

How much does a flight from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE) cost?
Get a cheap one-way flight from $410 or cheap return flight from $710 from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE)?
Flying in October can help you save, as it's the cheapest month for flights between TTN and ABE. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest TTN to ABE flight.
How many flights per day from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE)?
You'll have to book a flight with a layover if you're traveling from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from TTN to ABE?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE)?
To land at Lehigh Valley Intl. Airport (ABE) without delays, select a flight that leaves from Mercer Airport (TTN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE) last-minute?
Last-minute bookings from TTN to ABE are usually more expensive. To secure the lowest prices, start searching for flights ahead of time. That being said, if your travel plans are flexible, you may find a cheap ticket right before your trip.
Is it cheaper to book a TTN to ABE flight and hotel package?
Opting for a TTN to ABE flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our wide range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Lehigh Valley Intl. Airport (ABE)?
Generally, it's possible to cancel or reschedule your TTN to ABE flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Mercer
Destination airport
Lehigh Valley Intl.
Roundtrip price
$709
Distance
41 mi

Book with confidence

Trenton to Allentown Flights

The cheapest times to fly from Trenton to Allentown

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Trenton to Allentown are during the month of October. You can find some of the cheapest flights from Trenton to Allentown with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trenton to Allentown

Sunday is one of the best days to book for cheap flights from Trenton to Allentown: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Trenton to Allentown

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Trenton to Allentown in 2025. You can also book with separate airlines for your outbound and return journeys, from $410 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Trenton to Allentown flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Trenton to Allentown airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Trenton to Allentown Flights

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*Available to One Key members.