Find cheap flights from Portland to Knoxville starting at $116.
Book one-way or return flights from Portland to Knoxville from as little as $116. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- PDX00:4813h 50m1 stopTYS17:38Mon, May 20|Portland - Knoxville|Frontier Airlines$116$23851% OFF51% OFF$238$116
- PDX14:5016h 1m1 stopTYS09:51Sun, May 5|Portland - Knoxville|Frontier Airlines$124$23848% OFF48% OFF$238$124
- PDX20:3710h 14m1 stopTYS09:51Sun, May 12|Portland - Knoxville|Frontier Airlines$129$23846% OFF46% OFF$238$129
- PDX07:4828h 13m1 stopTYS15:01Thu, May 30|Portland - Knoxville|Frontier Airlines$136$136
- PDX00:4812h 43m1 stopTYS16:31Wed, May 22|Portland - Knoxville|Frontier Airlines$145$145
- PDX07:0022h 7m1 stopTYS08:07Mon, May 20|Portland - Knoxville|Alaska Airlines$176$176
- PDX00:4813h 2m1 stopTYS16:50Sat, May 25|Portland - Knoxville|Frontier Airlines$184$184
- PDX00:4913h 12m1 stopTYS17:01Sat, Jun 8|Portland - Knoxville|Frontier Airlines$185$185
- PDX07:0022h 17m1 stopTYS08:17Wed, May 29|Portland - Knoxville|Alaska Airlines$186$186
- PDX00:4813h 29m1 stopTYS17:17Wed, Jul 17|Portland - Knoxville|Frontier Airlines$188$188
- PDX13:003h 5mDirectTYS14:00Sun, May 12|Portland - Knoxville|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Find more flights and airlines
Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Portland to Knoxville.
- CheapestPDX23:3031h 26m2 transferTYS09:56Portland International Airport - Mcghee Tyson AirportWed, May 8Spirit Airlines$97
- PDX23:3031h 26m2 transferTYS09:56Portland International Airport - Mcghee Tyson AirportWed, May 8Spirit Airlines$97Find More Flights
Frequently Asked Questions
How to find a cheap flight from Portland to Knoxville
Cheapest nonstop flight price | $116 |
---|---|
Off-season for travel | May |
Peak season for travel | July |
Flight distance | 3,393.5km |
Popular airline | American Airlines |
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