US$112 Cheap Flights from Knoxville to Portland
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Flights from Knoxville to Portland
Find cheap one-way flights from Knoxville to Portland starting at US$112.
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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TYS 05:308h 53m1 stopsPDX 11:23Knoxville - Portland | Tue, May 6 | Delta Air Lines
PDX 14:106h 41m1 stopsTYS 23:51Portland - Knoxville | Tue, May 13 | Delta Air LinesUS$241 US$42944% OFF44% OFFUS$429 US$241 -
TYS 05:458h 38m1 stopsPDX 11:23Knoxville - Portland | Sat, Apr 12 | Delta Air Lines
PDX 23:197h 2m1 stopsTYS 09:21Portland - Knoxville | Sat, Apr 19 | Delta Air LinesUS$267 US$42938% OFF38% OFFUS$429 US$267
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TYS 16:3111h 6m1 stopsPDX 00:37Knoxville - Portland | Thu, Apr 3 | Frontier Airlines
PDX 05:006h 44m1 stopsTYS 14:44Portland - Knoxville | Wed, Apr 9 | United AirlinesUS$274 US$42936% OFF36% OFFUS$429 US$274 -
TYS 05:308h 53m1 stopsPDX 11:23Knoxville - Portland | Sat, Apr 19 | Delta Air Lines
PDX 23:197h 2m1 stopsTYS 09:21Portland - Knoxville | Sat, Apr 26 | Delta Air LinesUS$32325% OFFUS$429 US$323
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TYS 11:599h 2m1 stopsPDX 18:01Knoxville - Portland | Thu, Mar 27 | Delta Air Lines
PDX 06:309h 4m1 stopsTYS 18:34Portland - Knoxville | Wed, Apr 2 | Delta Air LinesUS$33123% OFFUS$429 US$331
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TYS 05:248h 31m1 stopsPDX 10:55Knoxville - Portland | Sat, Apr 12 | American Airlines
PDX 13:576h 58m1 stopsTYS 23:55Portland - Knoxville | Sat, Apr 19 | American AirlinesUS$33222% OFFUS$429 US$332 -
TYS 05:308h 53m1 stopsPDX 11:23Knoxville - Portland | Wed, Apr 16 | Delta Air Lines
PDX 06:007h 14m1 stopsTYS 16:14Portland - Knoxville | Sun, Apr 20 | Delta Air LinesUS$33721% OFFUS$429 US$337
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TYS 07:009h 1m1 stopsPDX 13:01Knoxville - Portland | Tue, Apr 8 | United Airlines
PDX 05:006h 44m1 stopsTYS 14:44Portland - Knoxville | Wed, Apr 9 | United AirlinesUS$33921% OFFUS$429 US$339 -
TYS 16:319h 17m1 stopsPDX 22:48Knoxville - Portland | Wed, Apr 2 | United Airlines
PDX 23:307h 35m1 stopsTYS 10:05Portland - Knoxville | Tue, Apr 8 | United AirlinesUS$34320% OFFUS$429 US$343
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TYS 14:208h 42m1 stopsPDX 20:02Knoxville - Portland | Tue, May 6 | United Airlines
PDX 07:0010h 6m1 stopsTYS 20:06Portland - Knoxville | Tue, May 13 | United AirlinesUS$34320% OFFUS$429 US$343
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TYS 13:0017h 25m1 stopsPDX Invalid DateKnoxville - Portland | Thu, Mar 27 | Normal Airline
PDX 15:006hNonstopTYS 16:00Portland - Knoxville | Sat, Mar 29 | Normal AirlineFind More FlightsFind More Flights
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TYS 16:3111h 6m1 stopsPDX 00:37Knoxville - Portland | Thu, Apr 17 | Frontier AirlinesUS$112 US$28661% OFF61% OFFUS$286 US$112
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TYS 12:4614h 51m1 stopsPDX 00:37Knoxville - Portland | Fri, Apr 18 | Frontier AirlinesUS$122 US$28657% OFF57% OFFUS$286 US$122
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TYS 17:258h 31m1 stopsPDX 22:56Knoxville - Portland | Tue, Mar 25 | United AirlinesUS$170 US$28641% OFF41% OFFUS$286 US$170
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TYS 07:007h 44m1 stopsPDX 11:44Knoxville - Portland | Sat, May 3 | United AirlinesUS$17340% OFFUS$286 US$173
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TYS 16:2311h 14m1 stopsPDX 00:37Knoxville - Portland | Thu, Mar 27 | Frontier AirlinesUS$19034% OFFUS$286 US$190
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TYS 14:3510h 11m1 stopsPDX 21:46Knoxville - Portland | Tue, Mar 25 | Delta Air LinesUS$20927% OFFUS$286 US$209
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TYS 14:337h 9m1 stopsPDX 18:42Knoxville - Portland | Wed, Apr 30 | Delta Air LinesUS$22223% OFFUS$286 US$222
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TYS 07:058h 54m1 stopsPDX 12:59Knoxville - Portland | Wed, Mar 26 | United AirlinesUS$22322% OFFUS$286 US$223
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TYS 16:317h 29m1 stopsPDX 21:00Knoxville - Portland | Tue, Apr 1 | United AirlinesUS$22521% OFFUS$286 US$225
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TYS 17:258h 11m1 stopsPDX 22:36Knoxville - Portland | Wed, Apr 30 | United AirlinesUS$22920% OFFUS$286 US$229
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TYS 13:0017h 25m1 stopsPDX Invalid DateKnoxville - Portland | Thu, Mar 27 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Cheapest airlines flights from Knoxville to Portland
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Frequently Asked Questions
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When are flight tickets from Knoxville (TYS) to Portland (PDX) the cheapest?
Airlines adjust prices for flights from Knoxville to Portland based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Knoxville (TYS) to Portland (PDX) cost?
According to Trip.com's data, the lowest price is around $595.
How to find a cheap flight from Knoxville to Portland
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Knoxville to Portland. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest Knoxville to Portland ticket.
Tap "Date" on flight search bar to scan through the calender for Knoxville to Portland airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Thu, Apr 17 at US$112 for one-way flights.
Compare cheap Knoxville to Portland flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Knoxville to Portland. The cheapest airline operating is Frontier Airlines.
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Don't miss cheap Knoxville to Portland flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Knoxville to Portland to get exclusive deals for you.
Knoxville to Portland Flight Information
| Cheapest one-way flight price | $112 |
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| Off-season for travel | March |
| Peak season for travel | December |
| Flight distance | 3,393.5 km |
| Popular airline | Alaska Airlines |
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