Flight tickets from Portland to Knoxville

Compare Portland to Knoxville flight deals

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

Book the best Knoxville fare with no extra fees

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 ₹ 34,840. 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 found₹ 17,614
Cheapest month to flySeptember

Finding cheap flights from Portland to Knoxville: Frequently asked questions

The best price we found for a return flight from Portland to Knoxville is ₹ 34,840. 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 ₹ 34,840.
As of June 2026, there are no flights flying from Portland to Knoxville.
The cheapest month to fly from Portland to Knoxville is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Knoxville Airport on Thursday, 2 July 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, Frontier Airlines offers the cheapest flight tickets to Knoxville.

Flying from Portland International Airport (PDX) to McGhee Tyson Airport (TYS): what you need to know

  • Your PDX to TYS flight won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak month like July? Public holidays and other high seasons can mean longer lines and delays at security. Be extra cautious and arrive up to four hours before international flights and two hours before domestic departures.

  • If you'd like to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from Portland International Airport to McGhee Tyson Airport. Here are the most popular stopovers between PDX and TYS:

    • Denver International Airport

    • Chicago Midway International Airport

    • Hartsfield-Jackson Atlanta International Airport

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

  • The lowest price we've found for a one-way Portland International Airport to McGhee Tyson Airport flight is ₹ 17,614. A round-trip fare is currently ₹ 34,840. Depending on the availability when you book, these fares can change.

  • It's a good idea to book ahead of time if you're looking for cheap tickets from PDX to TYS. That's because airlines change prices based on demand, which tends to rise closer to departure.

  • The 'Whole month' tool shows you the cheapest flights from Portland International Airport to McGhee Tyson Airport across the entire month. It's a good way to snap up a bargain if your dates aren't set in stone.

  • Never miss a deal on cheap flights from PDX to TYS by creating a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.

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

Handy information about Portland International Airport (PDX)

  • PDX is located at 7000 NE Airport Way.

  • 83.65% of flights leaving Portland International Airport touch down at their destination as planned. With its strong on-time performance, you're unlikely to experience delays when jetting out of PDX.

  • Portland International Airport is around 19 kilometres from central Portland. If you're driving, catching a cab or ride-sharing from the centre, it'll take 20 minutes or so to arrive, depending on the traffic.

  • Planning to catch public transport? Expect a trip time of around 45 minutes.

  • Searching for a handy hotel near PDX? If you've booked an early flight from Portland International Airport to McGhee Tyson Airport, these stays will have you moments from your check-in counter:

Arriving at McGhee Tyson Airport (TYS)

  • Consider staying in a hotel close to TYS if you have a late Portland International Airport to McGhee Tyson Airport flight. Settle into one of these accommodation options and skip the long transfer after landing:

  • Pick up a McGhee Tyson Airport rental car and explore Knoxville and beyond with your own set of wheels. Budget, Alamo and Avis are top providers to choose from here.

  • To secure the lowest price, book your ride from McGhee Tyson Airport around three weeks ahead.

Getting from McGhee Tyson Airport (TYS) to central Knoxville

  • TYS is located at 2055 Alcoa Highway.

  • From McGhee Tyson Airport, Knoxville is approximately 23 kilometres away. It takes around 20 minutes to drive to the centre.

When to fly to McGhee Tyson Airport (TYS)

  • It's time to plan your trip dates for your flight from Portland International Airport to McGhee Tyson Airport. July is the busiest month to visit Knoxville. If you prefer a more low-key vibe, go in February.

  • The warmest month in Knoxville is July, with the temperature ranging between 17ºC and 32ºC. Lock in your flights from Portland International Airport to McGhee Tyson Airport in this month if this is the type of weather you like.

  • January sees average temperatures of between -6ºC and 11ºC. Search for cheap tickets from PDX to TYS sometime then if you like travelling in cooler conditions.

Explore more of United States

  • Columbus is just one of the many cities in United States waiting to be discovered once you've seen the sights of Knoxville. Around 451 kilometres away to the north, its best attractions include Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • Indianapolis is another favourite destination in United States and is around 467 kilometres north-west of Knoxville. No trip is complete without dropping by The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.