This deal has expired.
It was found on September 3, 2026. Typical price for this route is $1,181. Fares like this come and go fast. Get the next one by email below.
Past deal
Knoxville to Porto
$767$1,18135% off
Round trip
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.
Travel dates
Dates in March
e.g. Mar 9 – Mar 18 · 9 nights
Date options
13 at this price
Lowest we've seen
$461
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