241 € Cheap Flights from Portland to Knoxville

Compare Portland to Knoxville flight deals

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

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Flight deals from Portland to Knoxville

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Knoxville Airport? If you want to travel next month, return fares start from 300 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Portland to Knoxville

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

Portland to Knoxville: Alternative routes

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

Portland to Knoxville: Flight information

The things to know before you go.
Cheapest flight found241 €
Cheapest month to flyMay

Finding cheap flights from Portland to Knoxville: Frequently asked questions

The best price we found for a return flight from Portland to Knoxville is 241 €. 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.
Currently, there are no airlines that fly direct from Portland to Knoxville. But we found flights with one or more stops from 241 €.
As of May 2026, there are no flights flying from Portland to Knoxville.
The cheapest month to fly from Portland to Knoxville is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Knoxville Airport on Saturday, 30 May 2026.
No airlines currently offer direct flights between Portland Airport and Knoxville Airport. Most routes have one or more stops.
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 Knoxville 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.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Knoxville is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Breeze Airways offers the cheapest flight tickets to Knoxville.

Travelling from Portland International Jetport Airport (PWM) to McGhee Tyson Airport (TYS): what you need to know

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your PWM to TYS flight.

  • During popular months such as August, it's a good idea to get to the airport earlier than normal. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during peak periods in general.

  • If you want to add a stop to your trip, simply uncheck 'Direct flights only' when searching for your ticket from Portland International Jetport Airport to McGhee Tyson Airport. These are the top stopovers between PWM and TYS:

    • Philadelphia International Airport

    • Washington Dulles International Airport

    • Ronald Reagan National Airport

How to find the cheapest flights from Portland International Jetport Airport (PWM) to McGhee Tyson Airport (TYS)

  • 126 € is currently the best price for a one-way Portland International Jetport Airport to McGhee Tyson Airport flight. Return flights start at 241 €. These prices can change based on demand.

  • It's a good idea to book as early as possible if you want to find cheap tickets from PWM to TYS. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • The 'Whole month' search tool shows you the cheapest flights from Portland International Jetport Airport to McGhee Tyson Airport throughout the month. It's a great way to find a bargain if your dates are flexible.

  • Cut down on the time spent looking for cheap flights from PWM to TYS by setting up a Price Alert. You'll get an email or push notification on the app when fares go down.

  • Choose your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Portland International Jetport Airport to McGhee Tyson Airport.

Handy information about Portland International Jetport Airport (PWM)

  • PWM is located at 1001 Westbrook Street.

  • Portland International Jetport Airport maintains a strong on-time record, so you're less likely to experience disruptions. Departures from PWM make it to their destination as scheduled 82.15% of the time.

  • Portland International Jetport Airport is about 8 kilometres from central Portland. If you're catching a cab, ride-sharing or driving from the centre, it'll take 15 minutes or so to get there, depending on the traffic.

  • Catching public transport? Expect a journey time of around 40 minutes.

  • Get your travels off to a leisurely start by staying near PWM. Whether you've booked an early flight from Portland International Jetport Airport to McGhee Tyson Airport or just don't like being rushed, these hotels are perfect:

Arriving at McGhee Tyson Airport (TYS)

  • The last thing you want is a long journey to your hotel if you're arriving on a late Portland International Jetport Airport to McGhee Tyson Airport flight. Check in to one of these accommodation options near TYS instead:

  • Grab a McGhee Tyson Airport rental car and explore Knoxville and beyond with your own wheels. Budget, Alamo and Avis are top outlets to choose from here.

  • Secure the lowest price by reserving your ride from McGhee Tyson Airport about three weeks before your trip.

Getting from McGhee Tyson Airport (TYS) to central Knoxville

  • The address for TYS is 2055 Alcoa Highway.

  • McGhee Tyson Airport is approximately 23 kilometres from central Knoxville. The drive time takes about 20 minutes.

When to fly to McGhee Tyson Airport (TYS)

  • It's time to plan your dates for your flight from Portland International Jetport Airport to McGhee Tyson Airport. July is the busiest month to visit Knoxville. If you're after a more laid-back vibe, go in February.

  • When reserving your flight from Portland International Jetport Airport to McGhee Tyson Airport, think about the kind of weather you like. July is the warmest month in Knoxville, with temperatures ranging from 17ºC (63ºF) to 32ºC (90ºF).

  • January sees average temperatures of between -6ºC (21ºF) and 11ºC (52ºF). Look for cheap tickets from PWM to TYS sometime then if you want to travel in cooler conditions.

Explore more of United States

  • Knoxville is easy to fall in love with, but there are so many other parts of United States you should also see. Around 451 kilometres north of Knoxville, a trip to Columbus will keep you busy. Start with popular sights like Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • If you're ready to explore another side of United States, consider Indianapolis, roughly 467 kilometres north-west of Knoxville. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.