
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $375 (American Airlines) |
One-way from | $127 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $459 |
Fly from
Fly to
Route
Depart
Return
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Sat 8/22
6:04 am-6:17 pm
1 stop9h 13m
Knoxville McGhee Tyson
Sat 8/29
6:45 am-12:54 pm
1 stop9h 09m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Thu 5/28
11:40 pm-2:27 pm
2 stops11h 47m
Knoxville McGhee Tyson
Wed 6/3
5:57 pm-11:53 pm
1 stop8h 56m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Wed 9/30
6:45 am-4:30 pm
1 stop6h 45m
Knoxville McGhee Tyson
Wed 10/7
1:50 pm-9:15 pm
2 stops10h 25m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Sun 5/24
10:40 pm-10:05 am
1 stop8h 25m
Knoxville McGhee Tyson
Thu 5/28
5:57 pm-10:30 pm
1 stop7h 33m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Wed 5/6
1:52 pm-11:56 pm
1 stop7h 04m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Sun 5/3
12:59 am-12:30 pm
1 stop8h 31m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Wed 4/29
12:38 pm-5:30 pm
3 stops49h 52m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Thu 10/1
1:30 pm-11:18 pm
1 stop6h 48m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Sat 10/10
5:35 pm-10:48 am
2 stops14h 13m
PortlandKnoxville
PDX - TYS
PDXTYS
Portland
Wed 5/20
7:05 pm-10:42 am
2 stops12h 37m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The best time to book flights from Portland to Knoxville is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, July is the cheapest month in which you can book a flight from Portland to Knoxville (average of $126). Flying from Portland to Knoxville in May is currently the most expensive (average of $313). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$428 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$264 | Average$343 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$279 | Average$498 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$303 | Average$457 | FlexibilityNo cancel fee | On-time71% |