Schedule of direct flights from Portland to Knoxville
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Portland to Knoxville:
Portland airports overview
Knoxville airports overview
Frequently asked questions (FAQ)
Answers to questions about the route that travelers are most interested in.
Special offers and sales on air tickets from Portland to Knoxville
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Alternative routes
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Cheapest one way flight
$197
Allegiant Air
2 transfers
1d 3h 17m
06/13/2025
The cheapest one-way flight from Portland to Knoxville departs on 06/13/2025, is operated by Allegiant Air and costs $197
Cheapest round trip flight
$360
Spirit Airlines
2 transfers
2d 5h 42m
05/14/2025
The cheapest roundtrip flight from Portland to Knoxville departs on 05/14/2025, is operated by Spirit Airlines and costs $360
The fastest flight
1d 3h 17m
Fastest flight from Portland to Knoxville takes 1d 3h 17m
Direct flights
No direct flights
There are no direct flights on this route.
Distance
3393km
Timezone difference
3h
The distance between Portland and Knoxville is 3393km (2104 miles).The time difference between Portland and Knoxville is 3h .
We tried looking for a list of airlines flying on Portland to Knoxville route and that list simply appears to be empty
Unable to find information about the schedule of direct flights from
There appear to be no direct flights from Portland to Knoxville at this time.... Well, or something went wrong on our side and we couldn't find anything
How much is the cheapest flight ticket from Portland to Knoxville?
The cheapest flight ticket from Portland to Knoxville according to data for the last 48 hours costs $197
When is the best time to buy air tickets on the route Portland — Knoxville?
Often the best time to buy tickets from Portland to Knoxville is 2 months before departure.
How long does it take to fly from Portland to Knoxville?
The fastest flights from Portland to Knoxville start from 3 hours 17 minutes in the air.
Which airline can fly direct from Portland to Knoxville?
The following airlines operate direct flights on the route Portland — Knoxville:
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Portland to Knoxville. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Portland to Knoxville
Below you will find a list of airlines operating flights on the Portland — Knoxville route and the starting prices for flights of each specific airline on it.
A direct flight is the most convenient and comfortable way to fly from Portland to Knoxville, despite the fact that sometimes flights with transfers can cost significantly less.
