$124 Cheap Flights from Trenton (TTN) to Portland (PWM)

View $124 flight on Sat, Jul 5, 2025Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM)

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Cheap Flights from Trenton to Portland (TTN-PWM)

Prices were available within the past 7 days and start at $124 for one-way flights and $256 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Jul 12 - Sat, Jul 26
TTN
Trenton
PWM
Portland
$256 Roundtrip, found 4 days ago
$256
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Trenton to Portland, returning Sat, Jul 26, priced at $256 found 4 days ago
Frontier Airlines
Fri, Jul 18 - Sat, Aug 2
TTN
Trenton
PWM
Portland
$261 Roundtrip, found 4 days ago
$261
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Fri, Jul 18 from Trenton to Portland, returning Sat, Aug 2, priced at $261 found 4 days ago
Frontier Airlines
Sat, Jul 12 - Sat, Jul 19
TTN
Trenton
PWM
Portland
$276 Roundtrip, found 2 days ago
$276
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Trenton to Portland, returning Sat, Jul 19, priced at $276 found 2 days ago
Frontier Airlines
Fri, Jul 11 - Sat, Jul 19
TTN
Trenton
PWM
Portland
$281 Roundtrip, found 2 days ago
$281
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Jul 11 from Trenton to Portland, returning Sat, Jul 19, priced at $281 found 2 days ago
Frontier Airlines
Fri, Jul 18 - Sat, Jul 26
TTN
Trenton
PWM
Portland
$284 Roundtrip, found 4 hours ago
$284
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Jul 18 from Trenton to Portland, returning Sat, Jul 26, priced at $284 found 4 hours ago
Frontier Airlines
Fri, Jul 4 - Sat, Jul 12
TTN
Trenton
PWM
Portland
$303 Roundtrip, found 5 days ago
$303
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Jul 4 from Trenton to Portland, returning Sat, Jul 12, priced at $303 found 5 days ago
Frontier Airlines
Sat, Aug 9 - Sat, Aug 23
TTN
Trenton
PWM
Portland
$308 Roundtrip, found 6 days ago
$308
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Trenton to Portland, returning Sat, Aug 23, priced at $308 found 6 days ago
Frontier Airlines
Fri, Jul 18 - Sat, Aug 2
TTN
Trenton
PWM
Portland
$312 Roundtrip, found 4 hours ago
$312
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Jul 18 from Trenton to Portland, returning Sat, Aug 2, priced at $312 found 4 hours ago
Frontier Airlines
Sat, Aug 9 - Sat, Aug 23
TTN
Trenton
PWM
Portland
$323 Roundtrip, found 4 days ago
$323
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Trenton to Portland, returning Sat, Aug 23, priced at $323 found 4 days ago
Frontier Airlines
Fri, Aug 8 - Sat, Aug 23
TTN
Trenton
PWM
Portland
$327 Roundtrip, found 4 days ago
$327
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Fri, Aug 8 from Trenton to Portland, returning Sat, Aug 23, priced at $327 found 4 days ago
Flights from Trenton (TTN) to Portland (PWM)
Origin airport
Mercer
Destination airport
Portland Intl. Jetport
Airlines serving
Frontier Airlines
Roundtrip price
$256
Distance
328 mi

Trenton to Portland Flights

The cheapest times to fly from Trenton to Portland

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

 

The best time to book a flight from Trenton to Portland

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

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 Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $124 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 Portland 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 Portland 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.

 

Frequently asked questions

How much does a flight from Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM) cost?
Discover the latest flight deals from TTN to PWM by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TTN to PWM?
The cheapest flights from TTN to PWM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM)?
There are no direct flights from Trenton, NJ (TTN-Mercer) to Portland Intl. Jetport Airport (PWM). However, you'll find other airports offering nonstop flights. Start your journey at Liberty Intl. Airport (EWR) and fly straight to Portland without a layover.
What is the cheapest airline that flies from TTN to PWM?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TTN to PWM. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM)?
You'll need to hop on a flight with a layover when traveling from Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from TTN to PWM?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a number of factors, including the time of year and carrier.*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 Portland Intl. Jetport Airport (PWM)?
To avoid possible delays on the Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM) route, aim to fly before 3 PM. Departures after this time are 22% more likely to be canceled.**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 Portland Intl. Jetport Airport (PWM) last-minute?
Holding off until just before your trip to book a ticket from TTN to PWM generally means paying more. Although you may find some last-minute deals, they aren't always guaranteed. Be flexible with your travel plans for the best chance of landing a bargain.
Is it cheaper to book a TTN to PWM flight and hotel package?
You can save money by securing a TTN to PWM flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After selecting your ideal accommodations and flights, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM)?
In most instances, you're able to reschedule or cancel your TTN to PWM flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you need further details, visit our Customer Service portal.

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*Available to One Key members.