Cheap Flights from Tri-Cities to Portland

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Compare Tri-Cities to Portland flight deals

Find the cheapest month or even day of the year to fly to Portland

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Flight deals from Tri-Cities to Portland

Looking for a cheap last-minute deal or the best return flight from Tri-Cities Airport to Portland Airport? If you want to travel next month, return fares start from $535. Find the lowest prices on one-way and return tickets right here.

Portland.$535 per passenger.Departing Thu, 6 Aug, returning Wed, 12 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Thu, 6 Aug, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Wed, 12 Aug, arriving in Tri-Cities.Price includes taxes and charges.From $535, select.

Portland.$535 per passenger.Departing Mon, 19 Oct, returning Mon, 26 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Mon, 19 Oct, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Mon, 26 Oct, arriving in Tri-Cities.Price includes taxes and charges.From $535, select.

Portland.$786 per passenger.Departing Wed, 23 Sep, returning Sat, 26 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Wed, 23 Sep, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Sat, 26 Sep, arriving in Tri-Cities.Price includes taxes and charges.From $786, select.

Portland.$1,792 per passenger.Departing Wed, 22 Jul, returning Sun, 26 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Wed, 22 Jul, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Sun, 26 Jul, arriving in Tri-Cities.Price includes taxes and charges.From $1,792, select.

Find the cheapest month to fly from Tri-Cities to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Tri-Cities to Portland flights are currently cheapest in August.

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Tri-Cities to Portland: Alternative routes

Compare routes from Tri-Cities to Portland below. You may find an airport to fly into that's cheaper, faster, or easier than Portland.

Kingsport to Portland: Flight information

The things to know before you go.

Cheapest flight found	$535
Cheapest month to fly	August

Finding cheap flights from Tri-Cities to Portland: Frequently asked questions

How much are return flights from Tri-Cities to Portland?

The best price we found for a return flight from Tri-Cities to Portland is $535. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Tri-Cities to Portland?

Currently, there are no airlines that fly direct from Tri-Cities to Portland. But we found flights with one or more stops from $535.

How many flights are there a week from Tri-Cities to Portland?

As of July 2026, there are no flights flying from Tri-Cities to Portland.

When is the cheapest time to fly from Tri-Cities to Portland?

The cheapest month to fly from Tri-Cities to Portland is usually August.

Which upcoming date is cheapest to fly from Tri-Cities Airport to Portland Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Tri-Cities Airport to Portland Airport on Thursday, 6 August 2026.

Can I get a direct flight from Tri-Cities Airport to Portland Airport?

No airlines currently offer direct flights between Tri-Cities Airport and Portland Airport. Most routes have one or more stops.

How can I find the best flight deal to Portland?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Portland but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Portland?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Portland is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Tri-Cities Airport to Portland with?

Currently, Delta offers the cheapest flight tickets to Portland.

Flying from Tri-Cities Airport (TRI) to Portland Airport (PWM): what you need to know

Leave enough time to make your TRI to PWM flight. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.
Flying during a peak time such as July? Major public holidays and other high seasons can mean longer queues at security. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

How to find the cheapest flights from Tri-Cities Airport (TRI) to Portland Airport (PWM)

$465 is the best price for a one-way Tri-Cities Airport to Portland Airport flight. Return flights start from $535. These fares may change based on availability and demand.
To get your hands on cheap tickets from TRI to PWM, book as early as you can. Airlines typically offer the most competitive fares when flights are first released.
Finding cheap flights from Tri-Cities Airport to Portland Airport is more likely if you're flexible with your travel plans. Use the 'Whole month' function to see the best prices throughout the month and snap up a great deal.
Landing cheap flights from TRI to PWM is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when a lower fare pops up.
Secure the ideal flight for you by using the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Tri-Cities Airport to Portland Airport, use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about Tri-Cities Airport (TRI)

TRI is located at 2525 Tennessee 75.
81% of flights departing from Tri-Cities Airport arrive at their destination according to schedule. With its strong performance rating, delays are unlikely when jetting out of TRI.
Tri-Cities Airport is about 18 kilometres from central Kingsport. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 15 minutes or so to get there, depending on the traffic.
The trip on public transport typically takes 35 minutes.
Booked an early flight from Tri-Cities Airport to Portland Airport? Avoid rushing to the airport (and enjoy a little extra shut-eye) by picking one of these stays near TRI:

Arriving at Portland Airport (PWM)

Book a hotel near PWM if you're on a late Tri-Cities Airport to Portland Airport flight. Check in to one of these accommodation options and make your arrival easier:
Hit the road running by picking up a Portland Airport rental car. Grab your wheels from Dollar, Budget or Hertz and explore beyond Portland's main sights.
Lock in the best possible rate by booking your vehicle from Portland Airport around one week before your trip.

Getting from Portland Airport (PWM) to central Portland

The street address for PWM is 1001 Westbrook Street.
Portland Airport is roughly 8 kilometres from central Portland. The drive time takes about 15 minutes.
It takes around 30 minutes if you're travelling on public transport.

When to fly to Portland Airport (PWM)

Before securing your flights from Tri-Cities Airport to Portland Airport, think about which time of year is best for you. Peak season in Portland offers a vibrant atmosphere and lots to do, while the low season means you'll get better hotel rates and fewer crowds.
Before locking in your flight from Tri-Cities Airport to Portland Airport, think about the kind of weather you enjoy. July is the warmest month in Portland, with the temperature ranging from 14ºC to 25ºC.
If you want to travel in cooler conditions, search for a cheap ticket from TRI to PWM in January. Average temperatures are between -10ºC and 3ºC then.

Explore more of the United States

You've visited Portland, now it's time to explore other parts of the United States. Journey around 451 kilometres south-west to New York to check off its leading sights. From Central Park to Statue of Liberty and Metropolitan Museum of Art, you'll have a packed itinerary ahead.
If you want to check out another side of the United States, head for Boston, about 161 kilometres south-west of Portland. Museum of Fine Arts Boston, Freedom Trail and USS Constitution Museum are the start of reasons to visit.