$145 Cheap Flights from Trenton (TTN) to Portland (PDX)

View $145 flight on Tue, Jan 20, 2026Opens in a new window

Popular airlines from Trenton–Mercer Airport (TTN) to Portland International Airport (PDX)

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Cheap Flights from Trenton to Portland (TTN-PDX)

Prices were available within the past 7 days and start at $145 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, May 23 - Thu, May 28
TTN
Trenton
PDX
Portland
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, May 23 from Trenton to Portland, returning Thu, May 28, priced at $317 found 1 day ago
American Airlines
Sun, May 24 - Sat, May 30
TTN
Trenton
PDX
Portland
$357 Roundtrip, found 12 hours ago
$357
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Sun, May 24 from Trenton to Portland, returning Sat, May 30, priced at $357 found 12 hours ago
American Airlines
Sat, May 23 - Thu, May 28
TTN
Trenton
PDX
Portland
$377 Roundtrip, found 4 hours ago
$377
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, May 23 from Trenton to Portland, returning Thu, May 28, priced at $377 found 4 hours ago
American Airlines
Sun, Dec 21 - Mon, Dec 29
TTN
Trenton
PDX
Portland
$417 Roundtrip, just found
$417
Roundtrip
just found
Select American Airlines flight, departing Sun, Dec 21 from Trenton to Portland, returning Mon, Dec 29, priced at $417 just found
American Airlines
Fri, May 22 - Wed, May 27
TTN
Trenton
PDX
Portland
$427 Roundtrip, found 4 hours ago
$427
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Fri, May 22 from Trenton to Portland, returning Wed, May 27, priced at $427 found 4 hours ago
American Airlines
Sun, May 24 - Sat, May 30
TTN
Trenton
PDX
Portland
$437 Roundtrip, found 12 hours ago
$437
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Sun, May 24 from Trenton to Portland, returning Sat, May 30, priced at $437 found 12 hours ago
American Airlines
Wed, Aug 19 - Sun, Aug 23
TTN
Trenton
PDX
Portland
$437 Roundtrip, found 5 days ago
$437
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 19 from Trenton to Portland, returning Sun, Aug 23, priced at $437 found 5 days ago
American Airlines
Mon, Jun 1 - Wed, Jun 10
TTN
Trenton
PDX
Portland
$442 Roundtrip, found 3 days ago
$442
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Jun 1 from Trenton to Portland, returning Wed, Jun 10, priced at $442 found 3 days ago
American Airlines
Fri, Dec 19 - Wed, Dec 24
TTN
Trenton
PDX
Portland
$447 Roundtrip, found 6 days ago
$447
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Dec 19 from Trenton to Portland, returning Wed, Dec 24, priced at $447 found 6 days ago
American Airlines
Sat, May 23 - Thu, May 28
TTN
Trenton
PDX
Portland
$457 Roundtrip, found 4 hours ago
$457
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, May 23 from Trenton to Portland, returning Thu, May 28, priced at $457 found 4 hours ago

Frequently asked questions

How much does a flight from Mercer Airport (TTN) to Portland Intl. Airport (PDX) cost?
Snag a cheap one-way flight from $145 or cheap return flight from $317 from Mercer Airport (TTN) to Portland Intl. Airport (PDX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Mercer Airport (TTN) to Portland Intl. Airport (PDX)?
Planning your getaway for May is a good way to save, as it's the cheapest month for flights between TTN and PDX. You'll often find the lowest fares during the off-season.
Which airlines fly direct from Mercer Airport (TTN) to Portland Intl. Airport (PDX)?
You can't fly directly from Trenton, NJ (TTN-Mercer) to Portland Intl. Airport (PDX). However, you can find other airports that have nonstop flights. Hop on your plane 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. Airport (PDX)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest TTN to PDX flight.
How many flights per day from Mercer Airport (TTN) to Portland Intl. Airport (PDX)?
You'll need to book a flight with a layover when traveling from Mercer Airport (TTN) to Portland Intl. Airport (PDX). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from TTN to PDX?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, such as 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 Portland Intl. Airport (PDX)?
To avoid possible delays on the Mercer Airport (TTN) to Portland Intl. Airport (PDX) 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. Airport (PDX) last-minute?
Last-minute bookings from TTN to PDX are typically more expensive. To lock in the best prices, start looking for flights early. That said, if you can play around with your travel dates, it's possible to find a cheap fare right before your trip.
Is it cheaper to book a TTN to PDX flight and hotel package?
Compared with arranging flights and hotels separately, booking a TTN to PDX flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the stress out of planning your trip. Just pick your flights and choose from our wide range of stays, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Mercer Airport (TTN) to Portland Intl. Airport (PDX)?
If you booked your TTN to PDX flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Mercer
Destination airport
Portland Intl.
Airlines serving
American Airlines
Roundtrip price
$316
Distance
2407 mi

Book with confidence

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 May. 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 $145 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.

 

Trenton to Portland Flights

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