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Cheap flights from Portland to Knoxville from $97

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Knoxville departing on 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Portland to Knoxville

Cheap round-trip flights

These are some of the best round-trip flight deals from Portland to Knoxville that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland to Knoxville.

Cheap last minute flights

Planning a quick getaway from Portland to Knoxville? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Knoxville, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Portland to Knoxville

Find recent round-trip train or bus tickets from Portland to Knoxville.

All round-trip flight deals to Knoxville

The cheapest plane tickets to Knoxville found on KAYAK recently.
12:07 pm - 11:45 pmPDX-TYS
8h 38m1 stop
5:56 am - 10:23 amTYS-PDX
7h 27m1 stop
$333American Airlines
Find Deal
Wed, Apr 9 - Wed, Apr 16
5:31 am - 5:27 pmPDX-TYS
8h 56m1 stop
5:23 am - 1:16 pmTYS-PDX
10h 53m1 stop
$338American Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
5:00 am - 6:21 pmPDX-TYS
10h 21m2 stops
5:23 am - 11:06 amTYS-PDX
8h 43m1 stop
$343American Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
7:10 am - 11:47 pmPDX-TYS
13h 37m2 stops
5:00 pm - 11:54 pmTYS-PDX
9h 54m2 stops
$348Delta
Find Deal
Thu, Jan 9 - Mon, Jan 13
8:45 am - 10:22 pmPDX-TYS
10h 37m2 stops
7:00 am - 11:50 amTYS-PDX
7h 50m1 stop
$367United Airlines
Find Deal
Wed, Apr 9 - Wed, Apr 16
11:27 pm - 10:00 amPDX-TYS
7h 33m1 stop
5:25 pm - 10:39 pmTYS-PDX
8h 14m1 stop
$372United Airlines
Find Deal
Fri, Mar 7 - Sat, Mar 15
7:00 am - 6:25 pmPDX-TYS
8h 25m1 stop
4:23 pm - 12:37 amTYS-PDX
11h 14m1 stop
Sun, Mar 2 - Thu, Mar 6
5:30 pm - 2:28 pmPDX-TYS
17h 58m2 stops
12:00 pm - 4:35 pmTYS-PDX
31h 35m3 stops
Thu, Jan 9 - Mon, Jan 13
7:23 am - 11:43 pmPDX-TYS
13h 20m2 stops
6:45 am - 4:23 pmTYS-PDX
12h 38m2 stops
$488Delta
Find Deal
Wed, Apr 9 - Wed, Apr 16
7:40 am - 5:20 pmPDX-TYS
6h 40m1 stop
11:39 am - 4:39 pmTYS-PDX
8h 00m1 stop
$837Alaska Airlines
Find Deal
Wed, Jan 1 - Thu, Jan 2
7:35 am - 3:19 pmPDX-TYS
28h 44m1 stop
$97Frontier
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Sat, Jan 18
12:00 pm - 12:12 amPDX-TYS
9h 12m1 stop
$269American Airlines
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Fri, Jan 17
12:59 am - 1:27 pmPDX-TYS
9h 28m2 stops
$274Delta
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Mon, Feb 17
5:31 am - 3:19 pmPDX-TYS
6h 48m1 stop
$289American Airlines
Find Deal
Fri, Mar 28
11:59 pm - 12:24 pmPDX-TYS
9h 25m2 stops
$294American Airlines
Find Deal
Fri, Mar 28
10:48 pm - 1:18 pmPDX-TYS
11h 30m2 stops
$324United Airlines
Find Deal
Sat, Jan 18
6:10 pm - 8:03 pmPDX-TYS
22h 53m2 stops
$367United Airlines
Find Deal
Fri, Jan 17
11:00 pm - 9:20 amPDX-TYS
7h 20m1 stop
$379Delta
Find Deal
Thu, Mar 27
7:29 pm - 9:39 amPDX-TYS
11h 10m2 stops
$424Delta
Find Deal
Fri, Mar 28
2:00 pm - 9:13 pmPDX-TYS
28h 13m3 stops
Thu, Mar 27
12:59 am - 11:23 amPDX-TYS
7h 24m1 stop
5:00 am - 12:45 pmTYS-PDX
10h 45m1 stop
$949American Airlines
Find Deal
Thu, Dec 26 - Mon, Dec 30
12:59 am - 11:23 amPDX-TYS
7h 24m1 stop
4:07 pm - 12:55 amTYS-PDX
11h 48m2 stops
$1,044American Airlines
Find Deal
Thu, Dec 26 - Mon, Dec 30

American Airlines flights from Portland to Knoxville

Our best American Airlines deals on Portland to Knoxville flight tickets
American Airlines
Apr 9
PDX12:07 pmPortland
8h 38m
1 stop
TYS11:45 pmKnoxville McGhee Tyson
Apr 16
TYS5:56 amKnoxville McGhee Tyson
7h 27m
1 stop
PDX10:23 amPortland
American Airlines
Jan 9
PDX5:31 amPortland
8h 56m
1 stop
TYS5:27 pmKnoxville McGhee Tyson
Jan 13
TYS5:23 amKnoxville McGhee Tyson
10h 53m
1 stop
PDX1:16 pmPortland
American Airlines
Jan 9
PDX5:00 amPortland
10h 21m
2 stops
TYS6:21 pmKnoxville McGhee Tyson
Jan 13
TYS5:23 amKnoxville McGhee Tyson
8h 43m
1 stop
PDX11:06 amPortland

United Airlines flights from Portland to Knoxville

Our best United Airlines deals on Portland to Knoxville flight tickets
United Airlines
Apr 9
PDX8:45 amPortland
10h 37m
2 stops
TYS10:22 pmKnoxville McGhee Tyson
Apr 16
TYS7:00 amKnoxville McGhee Tyson
7h 50m
1 stop
PDX11:50 amPortland
United Airlines
Mar 7
PDX11:27 pmPortland
7h 33m
1 stop
TYS10:00 amKnoxville McGhee Tyson
Mar 15
TYS5:25 pmKnoxville McGhee Tyson
8h 14m
1 stop
PDX10:39 pmPortland
United Airlines
Mar 7
PDX11:27 pmPortland
7h 33m
1 stop
TYS10:00 amKnoxville McGhee Tyson
Mar 15
TYS2:00 pmKnoxville McGhee Tyson
11h 55m
2 stops
PDX10:55 pmPortland

See travel insights to Knoxville from

How to get the cheapest flight ticket from Portland to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Knoxville?

The month of January is, on average, the cheapest month to fly to Knoxville from Portland, with most prices found around $382. If you aren’t able to travel during the month of January, then book flights to Knoxville from Portland during September instead. Flights to Knoxville in September, while not as cheap as those in January, still average around $385.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from Portland to Knoxville is on a Tuesday. Travelers who choose to depart for Knoxville on a Tuesday will often find tickets for as low as $442. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Knoxville for around $583.

What is the cheapest time of day to depart on your flight to Knoxville?

At noon is the cheapest time of day to fly from Portland to Knoxville when you can find flight prices for as low as $460. Flying to Knoxville at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the evening when prices are around $478.

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

We recommend purchasing flights from Portland to Knoxville 54 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Knoxville for $485. Keep in mind that you might also find cheap flights to Knoxville outside of this time window. In fact, momondo users recently found flights from Portland to Knoxville for $258.

Can stopping save me money on Portland to Knoxville flights?

You could potentially save up to 64% on your flight if you consider stops on a Portland to Knoxville flight.

How have Portland to Knoxville flight prices changed over time?

As of December 2024, prices for Portland to Knoxville flights are approximately 82% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Knoxville (PDX to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Knoxville

Best Price Found

$97

Fastest flight time

6h 33m

Direct flights

None

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Portland in the past 72 hours is $97. The best round-trip flight deal from Portland to Knoxville found on momondo in the last 72 hours is $333.
The fastest flight from Portland to Knoxville takes 6h 33m
There are no direct flights from Portland to Knoxville. Popular non-direct route for this connection is Portland Airport - Knoxville McGhee Tyson Airport.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)

  • How far is Portland to Knoxville McGhee Tyson by plane?

    Portland and Knoxville McGhee Tyson are 2108.9 mi apart from one another. A reasonable flight in good conditions will take 6h 33m.

  • When did momondo last update prices for flights from Portland Airport to Knoxville McGhee Tyson Airport?

    Prices for flights from Portland Airport to Knoxville McGhee Tyson Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Portland Airport to Knoxville McGhee Tyson Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The required travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Portland to Knoxville?


Best airlines flying from Portland to Knoxville

Compare and see reviews for airlines that fly from Portland to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $168Free CancellationRating
6.1
3,472 reviews
Search Frontier flights
DeltaPriceFrom $284Free CancellationRating
8.0
8,594 reviews
Search Delta flights
American AirlinesPriceFrom $289Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $308Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Knoxville?

It is quick and easy to find Portland to Knoxville flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Knoxville that suits you.

Can I find flights from Portland to Knoxville with flexible booking policies on momondo?

Flights from Portland to Knoxville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Knoxville?

momondo provides multiple filters to help you find the best flight to Knoxville from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Knoxville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Knoxville, momondo offers a useful price alert feature which will track prices for flights to Knoxville from Portland and alert you when they change.


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