$155 Cheap Flights from Trenton (TTN) to Portland (PWM)

View $155 flight on Thu, Nov 27, 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 $155 for one-way flights and $344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Nov 27 - Tue, Dec 2
TTN
Trenton
PWM
Portland
$344 Roundtrip, found 3 days ago
$344
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Nov 27 from Trenton to Portland, returning Tue, Dec 2, priced at $344 found 3 days ago
American Airlines
Sat, Oct 25 - Tue, Oct 28
TTN
Trenton
PWM
Portland
$379 Roundtrip, found 6 hours ago
$379
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Trenton to Portland, returning Tue, Oct 28, priced at $379 found 6 hours ago
American Airlines
Tue, Sep 23 - Tue, Sep 30
TTN
Trenton
PWM
Portland
$389 Roundtrip, found 1 day ago
$389
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 23 from Trenton to Portland, returning Tue, Sep 30, priced at $389 found 1 day ago
American Airlines
Thu, Nov 27 - Tue, Dec 2
TTN
Trenton
PWM
Portland
$404 Roundtrip, found 3 days ago
$404
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Nov 27 from Trenton to Portland, returning Tue, Dec 2, priced at $404 found 3 days ago
American Airlines
Fri, Oct 31 - Sun, Nov 2
TTN
Trenton
PWM
Portland
$405 Roundtrip, found 18 hours ago
$405
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Fri, Oct 31 from Trenton to Portland, returning Sun, Nov 2, priced at $405 found 18 hours ago
American Airlines
Tue, Jun 30 - Sat, Jul 4
TTN
Trenton
PWM
Portland
$429 Roundtrip, found 5 days ago
$429
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Jun 30 from Trenton to Portland, returning Sat, Jul 4, priced at $429 found 5 days ago
American Airlines
Sat, Oct 25 - Tue, Oct 28
TTN
Trenton
PWM
Portland
$439 Roundtrip, found 6 hours ago
$439
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Trenton to Portland, returning Tue, Oct 28, priced at $439 found 6 hours ago
American Airlines
Thu, Oct 9 - Tue, Oct 14
TTN
Trenton
PWM
Portland
$440 Roundtrip, found 1 hour ago
$440
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Oct 9 from Trenton to Portland, returning Tue, Oct 14, priced at $440 found 1 hour ago
American Airlines
Fri, Oct 10 - Sun, Oct 12
TTN
Trenton
PWM
Portland
$441 Roundtrip, just found
$441
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 10 from Trenton to Portland, returning Sun, Oct 12, priced at $441 just found
American Airlines
Tue, Sep 23 - Tue, Sep 30
TTN
Trenton
PWM
Portland
$449 Roundtrip, found 1 day ago
$449
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 23 from Trenton to Portland, returning Tue, Sep 30, priced at $449 found 1 day ago
Flights from Trenton (TTN) to Portland (PWM)
Origin airport
Mercer
Destination airport
Portland Intl. Jetport
Airlines serving
American Airlines, Frontier Airlines
Roundtrip price
$344
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 November. 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 $155 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?
Lock in a cheap one-way flight from $155 or cheap return flight from $344 from Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM)?
November is the least expensive month to fly from TTN to PWM. Traveling during an off-peak travel window is often the key to landing a great deal.
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 Mercer Airport (TTN) to Portland Intl. Jetport Airport (PWM)?
To find the cheapest airline flying from TTN to PWM, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
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.