Route Price Intelligence
Cheap Flights From Knoxville to Porto
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Porto usually runs well over $1,400 round trip from Knoxville, so this United fare at $767 is a rare shot at Portugal without the usual price tag. It's part of a broader Portugal sale we're tracking across nine US cities this week. Porto's Ribeira riverfront and port wine cellars make it one of Europe's best value city breaks.
✓ 13 date combinations found at this price
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Best Time to Fly from Knoxville to Porto
The cheapest time to fly from Knoxville to Porto is typically January, when fares average around $825. The most expensive month tends to be May at around $1,476. For the best deals, consider flying in January, November, October.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route