Cheap flights from Portsmouth, MA to Knoxville, TN
Flights starting at $122. Choose between Allegiant Air, Spirit Airlines, or Silver Airways to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Knoxville
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are Allegiant Air, Spirit Airlines, Silver Airways, Frontier Airlines, and JetBlue Airways. Portsmouth and Knoxville have 19 direct flights per week.
Check-in for a flight from Portsmouth to Knoxville
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 |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Silver Airways | SIL | 3M | No | Opens 24 days before flight Closes 2 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Weather in Knoxville
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 7°C | 0°C |
February | 10°C | 1°C |
March | 15°C | 4°C |
April | 20°C | 8°C |
May | 25°C | 13°C |
June | 29°C | 18°C |
July | 30°C | 20°C |
August | 30°C | 19°C |
September | 27°C | 16°C |
October | 21°C | 10°C |
November | 14°C | 4°C |
December | 10°C | 2°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Portsmouth
- Flights from Portsmouth to Orlando
- Flights from Portsmouth to Punta Gorda
- Flights from Portsmouth to Myrtle Beach
- Flights from Portsmouth to New York
- Flights from Portsmouth to Las Vegas
- Flights from Portsmouth to Denver
- Flights from Portsmouth to Chicago
- Flights from Portsmouth to Miami
- Flights from Portsmouth to Los Angeles
- Flights from Portsmouth to Atlanta
- Flights from Portsmouth to Mexico City
- Flights from Portsmouth to Bogotá
- Flights from Portsmouth to Dallas
- Flights from Portsmouth to Phoenix
- Flights from Portsmouth to Philadelphia
- Flights from Portsmouth to San Francisco
- Flights from Portsmouth to Cancún
- Flights from Portsmouth to Houston
- Flights from Portsmouth to San Juan
- Flights from Portsmouth to Washington, D.C.
Flights to Knoxville
- Flights from New York to Knoxville
- Flights from Denver to Knoxville
- Flights from Las Vegas to Knoxville
- Flights from Los Angeles to Knoxville
- Flights from Orlando to Knoxville
- Flights from Fort Lauderdale to Knoxville
- Flights from Salt Lake City to Knoxville
- Flights from Tampa to Knoxville
- Flights from San Diego to Knoxville
- Flights from Chicago to Knoxville
- Flights from San Francisco to Knoxville
- Flights from Austin to Knoxville
- Flights from San Juan to Knoxville
- Flights from Portland to Knoxville
- Flights from Boston to Knoxville
- Flights from Sacramento to Knoxville
- Flights from Seattle to Knoxville
- Flights from Houston to Knoxville
- Flights from Washington, D.C. to Knoxville
- Flights from Phoenix to Knoxville
Popular routes
- Flights from Los Angeles to Mexico City
- Flights from Los Angeles to Paris
- Flights from San Francisco to Dodoma
- Flights from Eugene to Los Mochis
- Flights from New York to Athens
- Flights from Portland to Belfast
- Flights from Greensboro to Maputo
- Flights from Tulsa to Corpus Christi
- Flights from Charleston to Cairo
- Flights from Harrison to Kochi
- Flights from Morgantown to David, Chiriquí
- Flights from Arcata to Natal
- Flights from Jonesboro to Anchorage
Airports near Portsmouth
- Logan International
- Bradley International
- Rhode Island T. F. Green Int'l Airport
- Portland International Jetport
- Manchester–Boston Regional
- Burlington International
- Bangor International
- Hancock County-Bar Harbor
- Portsmouth International Airport at Pease
- Lebanon Municipal