TYS - PDX

$177 Find Cheap Flights from Knoxville to Portland - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Portland departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$320
Typical prices: $525-$662
Multiple Airlines
Fri 8/14Sat 8/29
TYS - PDX • 2 stops
Cheapest one-way
$177
Typical prices: $124-$368
Multiple Airlines
Fri 8/14
TYS - PDX • 2 stops
Top airlines
Cheapest • from $363 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Knoxville and Portland. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $497 (round-trip)
Shortest trip • 7h 19m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
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Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to Portland (TYS-PDX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Portland

Fri, Aug 14 - Sat, Aug 29
Multiple Airlines Logo
6:29 pm - 11:35 am
TYS
-
PDX
44h 06m
2 stops
Multiple Airlines Logo
12:20 pm - 1:49 pm
PDX
-
TYS
22h 29m
1 stop
$320Multiple Airlines
Thu, Aug 27 - Thu, Sep 3
Multiple Airlines Logo
7:00 am - 5:11 pm
TYS
-
PDX
13h 11m
1 stop
Multiple Airlines Logo
12:20 pm - 10:56 pm
PDX
-
TYS
31h 36m
2 stops
$353Multiple Airlines
Sat, Oct 31 - Thu, Nov 5
Multiple Airlines Logo
4:50 pm - 5:35 pm
TYS
-
PDX
27h 45m
2 stops
Multiple Airlines Logo
9:03 pm - 10:35 pm
PDX
-
TYS
22h 32m
1 stop
$359Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
American Airlines Logo
5:35 pm - 11:23 pm
TYS
-
PDX
8h 48m
1 stop
American Airlines Logo
11:06 pm - 9:44 am
PDX
-
TYS
7h 38m
1 stop
$363American Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
12:09 pm - 7:48 pm
TYS
-
PDX
10h 39m
1 stop
American Airlines Logo
11:06 pm - 9:44 am
PDX
-
TYS
7h 38m
1 stop
$363American Airlines
Sat, Oct 10 - Sat, Oct 17
United Airlines Logo
6:00 am - 11:33 am
TYS
-
PDX
8h 33m
1 stop
United Airlines Logo
8:25 am - 8:19 pm
PDX
-
TYS
8h 54m
1 stop
$363United Airlines
Sat, Sep 12 - Tue, Sep 29
United Airlines Logo
1:10 pm - 8:10 pm
TYS
-
PDX
10h 00m
1 stop
United Airlines Logo
7:02 am - 5:08 pm
PDX
-
TYS
7h 06m
1 stop
$363United Airlines
Tue, Sep 8 - Thu, Sep 10
Delta Logo
6:30 am - 10:49 am
TYS
-
PDX
7h 19m
1 stop
Delta Logo
11:35 am - 11:14 pm
PDX
-
TYS
8h 39m
1 stop
$363Delta
Tue, Sep 8 - Thu, Sep 10
Delta Logo
6:30 am - 10:49 am
TYS
-
PDX
7h 19m
1 stop
Delta Logo
1:42 pm - 11:14 pm
PDX
-
TYS
6h 32m
1 stop
$363Delta
Mon, Nov 9 - Tue, Nov 17
Delta Logo
2:40 pm - 9:52 pm
TYS
-
PDX
10h 12m
1 stop
Delta Logo
11:52 am - 11:11 pm
PDX
-
TYS
8h 19m
1 stop
$363Delta
Booking Insights

KAYAK's insights & trends for Knoxville to Portland flights

Get data-powered insights and trends into flights from Knoxville to Portland to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Knoxville to Portland?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to Portland departing in August.

Flight prices are below average for this route right now.

Flights to Portland from Knoxville usually cost between $525 and $662 in August.
The lowest price found in the past 5 days was $320 on Multiple Airlines (Aug 14-Aug 29).

What is the cheapest month to fly from Knoxville to Portland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Portland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knoxville to Portland is February, where tickets cost $401 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is $625 and $599 respectively.

How far in advance should I book a flight from Knoxville to Portland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Portland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Knoxville to Portland, you should book around 5 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low season

February

Cheapest flight

$177
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Knoxville to Portland

When to book flights from Knoxville to Portland

Are your dates flexible? Find out the best times to travel from Knoxville to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Portland

  • What is the cheapest flight from Knoxville to Portland?

    In the last 5 days, the lowest price for a flight from Knoxville to Portland was $177 for a one-way ticket and $320 for a round-trip.

  • Do I need a passport to fly between Knoxville and Portland?

    A passport is not required to fly from Knoxville to Portland.

  • Which aircraft models fly most regularly from Knoxville to Portland?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to Portland?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Knoxville and Portland, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to Portland, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Portland are Delta and United Airlines. With an average price for the route of $594 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $536 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and PDX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Knoxville to Portland

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8497 reviews
7.8Comfort
7.2Food
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

My flight home from Knoxville, TN, included a layover in Atlanta. I boarded the aircraft in Zone 5 and although there was limited overhead space, I was able to put my 'backpack' style roller-bag above my seat. Unfortunately, due to continued bad weather, we had to deplane. There were many people who would have missed their connection, so they rebooked. When we were re-boarding, the gate agent welcomed zone 5 and then made an announcement: All roller-bags for zone 5 passengers and higher will need to be gate checked. I promptly pushed the telescoping handle in and held my bag like a backpack. I was able to bring it on board, which was a relief. Upon entering the aircraft it became apparent that there was easily 40% open overhead space. There were audible signs of angry passengers who felt duped into checking their bags when in fact there were noticeably LESS passengers on the aircraft and TONS of overhead space. I'm not sure what kinds of parameters are used to determine when to cut off roller-bags from being brought on board, but it seemed deceptive and underhanded to have so many people get stuck checking their bags when clearly there was ample room for at least one more zone.

4.0 OkayErnest, Jul 2026
TYS - ATL
Read more Delta reviews

My flight home from Knoxville, TN, included a layover in Atlanta. I boarded the aircraft in Zone 5 and although there was limited overhead space, I was able to put my 'backpack' style roller-bag above my seat. Unfortunately, due to continued bad weather, we had to deplane. There were many people who would have missed their connection, so they rebooked. When we were re-boarding, the gate agent welcomed zone 5 and then made an announcement: All roller-bags for zone 5 passengers and higher will need to be gate checked. I promptly pushed the telescoping handle in and held my bag like a backpack. I was able to bring it on board, which was a relief. Upon entering the aircraft it became apparent that there was easily 40% open overhead space. There were audible signs of angry passengers who felt duped into checking their bags when in fact there were noticeably LESS passengers on the aircraft and TONS of overhead space. I'm not sure what kinds of parameters are used to determine when to cut off roller-bags from being brought on board, but it seemed deceptive and underhanded to have so many people get stuck checking their bags when clearly there was ample room for at least one more zone.

The CRJ-900 was clean but the overhead air vents were broken in our First Class row, making the cabin very hot until about 30 mins into the flight. The flight attendants were both extremely apologetic and accommodating though so that is why I rated the flight as very good. They checked on us many times and truly showed they cared. The snacks for an hour and a half flight could be better. Would be nice if there was a small plated meal over convenient store snacks. WiFi also was not working. And it would be nice if Delta had adjustable headrests on these planes.

I was in Comfort and we didn’t get any drinks, chips or anything! First Class got full service on the flight and Comfort got nothing. Seat was horrible and uncomfortable

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

The crew on this leg continue to be extremely helpful with my wife’s mobility issues. They also came by many many times to ensure we were comfortable and had drink some food.

The Pilot was one of the best I've had, very informative about turbulence and got us to our destination early

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

I liked the cleanness in the bathroom and good crew on board and at boarding gates. There was no Hindi (Bollywood) movies. The entertainment can be improved as it is one of the worst one I saw when I compared it with other airlines. The Mumbai to Amsterdam flight did not have any food for my family which does not contain eggs in it though we have selected “Hindu Asian vegetarian meal”

Friendly boarding crew. Better could have been a bit more substantial food for this 3 plus hour flight.

The head rest is too big and cannot be placed differently/removed. Causes one head to tilt forward and increase back pain

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

East Lounge in Denver was terrible. Turning away active military on orders? Really? Sad.

Clean and plenty of room for handbaggage. Leg room was cramped compared with the 777 from Frankfurt.

they made me check my carryon. There was space in the overhead bins.

Cramped and uncomfortable seats. Not enough room for 6’2” person such as myself.

Pretty turbulent, but not anyone’s fault. They got us there. Impressed that they carried on with a drink service.

Everything went as planned. The only issue I had was with the gate C31 attendant. The person could barely speak English and was very difficult to understand.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

It's very confusing because Kayak has it as American Airlines, but it was Hawaiian Airlines, but operated by Alaska Airlines. I had to go to the airport for my boarding pass because American said I didn't have any trips.

Seats were much more cramped then on the 737. Narrower and rows closer together. Flight was absolutely packed and the plugs under the seats didn't work. Was forced to check my bag even though previous flight had no issue with it.

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

Packed commercial flight was as comfortable as can be expected

We were re routed due to a flight cancellation. We did not fly out of Miami. We originally booked first class and were moved to coach without being compensated.

2 gate changes, several announced delays, not enough room and seats at the gate. Many had to stand while waiting. The actual flight was fine.

American Airlines customer service was extremely poor. They canceled our flights multiple times. Then put us on standby trying to get on flights instead of booking us on a confirmed flight to get us home. So flight after flight we kept our hopes up just to be disappointed and stuck from a connecting flight. We had never been to Dallas so we were sleeping on the floor at the airport waiting to get home.

Everything you need to know for your flight from Knoxville to Portland

Information on your arrival and departure airports