$92 Cheap Flights from Trenton (TTN) to Buffalo (BUF)

View $92 flight on Sat, Oct 25, 2025Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Trenton to Buffalo (TTN-BUF)

Prices were available within the past 7 days and start at $92 for one-way flights and $172 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 30 - Sat, Nov 1
TTN
Trenton
BUF
Buffalo
$172 Roundtrip, found 7 hours ago
$172
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Trenton to Buffalo, returning Sat, Nov 1, priced at $172 found 7 hours ago
Frontier Airlines
Fri, Oct 31 - Sat, Nov 1
TTN
Trenton
BUF
Buffalo
$187 Roundtrip, found 7 hours ago
$187
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Fri, Oct 31 from Trenton to Buffalo, returning Sat, Nov 1, priced at $187 found 7 hours ago
Frontier Airlines
Sat, Oct 11 - Sat, Oct 25
TTN
Trenton
BUF
Buffalo
$211 Roundtrip, found 7 hours ago
$211
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Oct 11 from Trenton to Buffalo, returning Sat, Oct 25, priced at $211 found 7 hours ago
Frontier Airlines
Thu, Oct 30 - Thu, Nov 6
TTN
Trenton
BUF
Buffalo
$226 Roundtrip, found 7 hours ago
$226
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Trenton to Buffalo, returning Thu, Nov 6, priced at $226 found 7 hours ago
Frontier Airlines
Sat, Oct 4 - Sat, Oct 18
TTN
Trenton
BUF
Buffalo
$241 Roundtrip, found 14 hours ago
$241
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Sat, Oct 4 from Trenton to Buffalo, returning Sat, Oct 18, priced at $241 found 14 hours ago
Frontier Airlines
Sun, Nov 9 - Wed, Nov 26
TTN
Trenton
BUF
Buffalo
$249 Roundtrip, found 14 hours ago
$249
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Sun, Nov 9 from Trenton to Buffalo, returning Wed, Nov 26, priced at $249 found 14 hours ago
Frontier Airlines
Sat, Oct 11 - Thu, Oct 23
TTN
Trenton
BUF
Buffalo
$250 Roundtrip, found 7 hours ago
$250
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Oct 11 from Trenton to Buffalo, returning Thu, Oct 23, priced at $250 found 7 hours ago
Frontier Airlines
Sat, Oct 4 - Sat, Oct 11
TTN
Trenton
BUF
Buffalo
$256 Roundtrip, found 1 hour ago
$256
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Oct 4 from Trenton to Buffalo, returning Sat, Oct 11, priced at $256 found 1 hour ago
Frontier Airlines
Thu, Oct 30 - Fri, Nov 21
TTN
Trenton
BUF
Buffalo
$259 Roundtrip, found 7 hours ago
$259
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Trenton to Buffalo, returning Fri, Nov 21, priced at $259 found 7 hours ago
American Airlines
Sat, Aug 15 - Wed, Aug 19
TTN
Trenton
BUF
Buffalo
$337 Roundtrip, found 2 days ago
$337
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Aug 15 from Trenton to Buffalo, returning Wed, Aug 19, priced at $337 found 2 days ago

Find the cheapest month to fly from Trenton (TTN) to Buffalo (BUF)

January is typically the cheapest month to fly

From $118 - $523 per traveler.

Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $370
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $370

Frequently asked questions

How much does a flight from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF) cost?
Lock in a cheap one-way flight from $92 or cheap return flight from $172 from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF)?
Planning your trip for October is a great way to save, as it's the cheapest month for flights between TTN and BUF. You'll typically find the lowest fares during off-peak months.
Which airlines fly direct from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF)?
Although Trenton, NJ (TTN-Mercer) doesn't have any direct flights to Buffalo Niagara Intl. Airport (BUF), other airports have nonstop options. Leaving from Liberty Intl. Airport (EWR) will get you to Buffalo without any layovers.
What is the cheapest airline that flies from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF)?
To find the cheapest airline that'll fly you from TTN to BUF, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF)?
There aren't any daily direct flights departing from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from TTN to BUF?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, including the airline and season.*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 Buffalo Niagara Intl. Airport (BUF)?
To reach Buffalo Niagara Intl. Airport (BUF) without delays, choose a flight that takes off from Mercer Airport (TTN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Buffalo Niagara Intl. Airport (BUF) last-minute?
Booking your ticket from TTN to BUF right before your journey is typically more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a TTN to BUF flight and hotel package?
Booking a TTN to BUF flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Buffalo Niagara Intl. Airport (BUF)?
Typically, you can cancel or modify your TTN to BUF flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like more information, head to our Customer Service portal.

Travel information

Travel information

Origin airport
Mercer
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Frontier Airlines
Roundtrip price
$172
Distance
273 mi

Book with confidence

Book with confidence

Trenton to Buffalo Flights

The cheapest times to fly from Trenton to Buffalo

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 Buffalo are during the month of October. You can find some of the cheapest flights from Trenton to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trenton to Buffalo

Sunday is one of the best days to book for cheap flights from Trenton to Buffalo: 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 Buffalo

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 Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $92 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 Buffalo 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 Buffalo 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 Buffalo Flights

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