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
$420
Usually Costs
$420 – $484
Lowest We've Seen
$258
Based on 6,489 price pointshigh confidence
Monthly Price Guide
Jan
$457
Feb
$457
Mar
$726
Apr
$476
May
$396
Jun
$456
Jul
$445
Aug
$380
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 August, when fares average around $380. The most expensive month tends to be March at around $726. For the best deals, consider flying in August, May, July.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $25880 price checksWorst: $361