Route Price Intelligence
Cheap Flights From Portland to Knoxville
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$457
Deals From
$445
Usually Costs
$445 – $492
Lowest We've Seen
$258
Based on 279 price pointshigh confidence
Monthly Price Guide
Jan
$457
Feb
$457
Mar
$457
Apr
$635
May
$442
Jun
$455
Jul
$445
Aug
$445
Sep
$457
Oct
$462
Nov
$457
Dec
$477
Cheapest Average Expensive
Best Time to Fly from Portland to Knoxville
The cheapest time to fly from Portland to Knoxville is typically May, when fares average around $442. The most expensive month tends to be April at around $635. For the best deals, consider flying in May, July, August.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $25859 price checksWorst: $325