Cheap flights from Knoxville, TN to Portland, OR
Flights starting at $56. Choose between Allegiant Air, Frontier Airlines, or United Airlines to find the best price.
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Tips to know when travelling to Portland
Cheapest one-way trip | $279 |
---|---|
Cheapest round-trip | $513 |
Most popular airline | Allegiant Air |
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The most popular airlines for this route are Allegiant Air, Frontier Airlines, United Airlines, Alaska Airlines, and Spirit Airlines. Knoxville and Portland have 181 direct flights per week.
Check-in for a flight from Knoxville to Portland
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Portland
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 8°C | 2°C |
February | 8°C | 2°C |
March | 11°C | 3°C |
April | 14°C | 5°C |
May | 19°C | 8°C |
June | 23°C | 10°C |
July | 28°C | 13°C |
August | 28°C | 14°C |
September | 24°C | 12°C |
October | 17°C | 8°C |
November | 10°C | 4°C |
December | 7°C | 2°C |
14 day forecast
Frequently asked questions
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Airports near Knoxville
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