Skip to content

United flights from Portland, OR to Knoxville starting at

Select journey type

Enter to select travel class and passengers

Book with confidence with United

Low fare calendar for flights from Portland, OR (PDX) to Knoxville (TYS)

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
from
$598 Price subject to changes
Viewed:7 hours ago
Economy
Return:
from
$498 Price subject to changes
Viewed:16 hours ago
Economy
Return:
from
$498 Price subject to changes
Viewed:16 hours ago
Economy
Return:
from
$498 Price subject to changes
Viewed:16 hours ago
Economy
Return:
1
from
$581 Price subject to changes
Viewed:16 hours ago
Economy
Return:
2
from
$498 Price subject to changes
Viewed:7 hours ago
Economy
Return:
3
from
$398 Price subject to changes
Viewed:16 hours ago
Economy
Return:
4
from
$511 Price subject to changes
Viewed:16 hours ago
Economy
Return:
5
from
$408 Price subject to changes
Viewed:16 hours ago
Economy
Return:
6
from
$398 Price subject to changes
Viewed:16 hours ago
Economy
Return:
7
from
$398 Price subject to changes
Viewed:16 hours ago
Economy
Return:
8
from
$611 Price subject to changes
Viewed:7 hours ago
Economy
Return:
9
from
$408 Price subject to changes
Viewed:7 hours ago
Economy
Return:
10
from
$378 Price subject to changes
Viewed:16 hours ago
Economy
Return:
11
from
$448 Price subject to changes
Viewed:16 hours ago
Economy
Return:
12
from
$388 Price subject to changes
Viewed:16 hours ago
Economy
Return:
13
from
$345 Price subject to changes
Viewed:16 hours ago
Economy
Return:
14
from
$378 Price subject to changes
Viewed:16 hours ago
Economy
Return:
15
from
$388 Price subject to changes
Viewed:16 hours ago
Economy
Return:
16
from
$388 Price subject to changes
Viewed:7 hours ago
Economy
Return:
17
from
$318 Price subject to changes
Viewed:16 hours ago
Economy
Return:
18
from
$338 Price subject to changes
Viewed:16 hours ago
Economy
Return:
19
from
$338 Price subject to changes
Viewed:16 hours ago
Economy
Return:
20
from
$318 Price subject to changes
Viewed:16 hours ago
Economy
Return:
21
from
$318 Price subject to changes
Viewed:16 hours ago
Economy
Return:
22
from
$398 Price subject to changes
Viewed:16 hours ago
Economy
Return:
23
from
$338 Price subject to changes
Viewed:16 hours ago
Economy
Return:
24
from
$318 Price subject to changes
Viewed:16 hours ago
Economy
Return:
25
from
$338 Price subject to changes
Viewed:16 hours ago
Economy
Return:
26
from
$338 Price subject to changes
Viewed:16 hours ago
Economy
Return:
27
from
$318 Price subject to changes
Viewed:16 hours ago
Economy
Return:
28
from
$318 Price subject to changes
Viewed:16 hours ago
Economy
Return:
29
from
$338 Price subject to changes
Viewed:16 hours ago
Economy
Return:
30
from
$338 Price subject to changes
Viewed:16 hours ago
Economy
Return:
31
from
$318 Price subject to changes
Viewed:16 hours ago
Economy
Return:
Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

More United deals on Portland, OR (PDX) to Knoxville (TYS) flights

FromToDatesFare TypePrice

Portland, OR (PDX)

Knoxville (TYS)

Depart: 10/28/20

Return: 11/11/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 10/31/20

Return: 11/14/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 11/03/20

Return: 11/17/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 11/04/20

Return: 11/18/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 11/11/20

Return: 11/25/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 11/18/20

Return: 12/02/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 11/21/20

Return: 12/05/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 11/24/20

Return: 12/08/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 11/25/20

Return: 12/09/20

Roundtrip
from
$318*
Viewed:16hoursago

Portland, OR (PDX)

Knoxville (TYS)

Depart: 10/27/20

Return: 11/03/20

Roundtrip
from
$318*
Viewed:16hoursago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Knoxville

Saturday broken clouds
75°F 09/26/20
Sunday light rain
82°F 09/27/20
Monday light rain
82°F 09/28/20
Tuesday heavy intensity rain
54°F 09/29/20
Wednesday few clouds
64°F 09/30/20
Thursday light rain
72°F 10/01/20
Friday sky is clear
62°F 10/02/20
Powered by: OpenWeatherMap.org