Cheap flights from Knoxville, TN to Allentown, PA
Flights starting at $134. Choose between Allegiant Air, United Airlines, or Spirit Airlines 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 Allentown
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
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, United Airlines, Spirit Airlines, Frontier Airlines, and WestJet. Knoxville and Allentown have 69 direct flights per week.
Check-in for a flight from Knoxville to Allentown
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 |
United Airlines | UAL | UA | Yes | No |
Spirit Airlines | NKS | NK | 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 |
WestJet | WJA | WS | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Allentown
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 2°C | -5°C |
February | 4°C | -4°C |
March | 8°C | 0°C |
April | 15°C | 4°C |
May | 20 °C | 10°C |
June | 25°C | 14°C |
July | 29°C | 18°C |
August | 28°C | 17°C |
September | 24°C | 13°C |
October | 17°C | 8°C |
November | 10°C | 1°C |
December | 5°C | -1°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 Knoxville
- Flights from Knoxville to Denver
- Flights from Knoxville to Las Vegas
- Flights from Knoxville to New York
- Flights from Knoxville to Orlando
- Flights from Knoxville to Los Angeles
- Flights from Knoxville to Fort Lauderdale
- Flights from Knoxville to Salt Lake City
- Flights from Knoxville to Chicago
- Flights from Knoxville to San Francisco
- Flights from Knoxville to Houston
- Flights from Knoxville to Sacramento
- Flights from Knoxville to Boston
- Flights from Knoxville to Minneapolis
- Flights from Knoxville to Tampa
- Flights from Knoxville to London
- Flights from Knoxville to San Juan
- Flights from Knoxville to Phoenix
- Flights from Knoxville to Dallas
- Flights from Knoxville to San Diego
- Flights from Knoxville to Destin
Flights to Allentown
- Flights from Nashville to Allentown
- Flights from Orlando to Allentown
- Flights from Savannah to Allentown
- Flights from Tampa to Allentown
- Flights from Myrtle Beach to Allentown
- Flights from Fort Lauderdale to Allentown
- Flights from Las Vegas to Allentown
- Flights from Chicago to Allentown
- Flights from Sarasota to Allentown
- Flights from Philadelphia to Allentown
- Flights from Los Angeles to Allentown
- Flights from Kansas City to Allentown
- Flights from Austin to Allentown
- Flights from San Juan to Allentown
- Flights from Portland to Allentown
- Flights from Houston to Allentown
- Flights from Raleigh to Allentown
- Flights from Fort Wayne to Allentown
- Flights from New Orleans to Allentown
- Flights from Sacramento to Allentown
Popular routes
- Flights from Los Angeles to Mexico City
- Flights from Los Angeles to Paris
- Flights from San Diego to Cap-Haïtien
- Flights from Minneapolis to Funchal
- Flights from Bismarck to Rome
- Flights from New York to Athens
- Flights from Norfolk to Phnom Penh
- Flights from Syracuse to Santiago de los Caballeros
- Flights from Milwaukee to Trenton
- Flights from Indianapolis to Indore
- Flights from Springfield to Copenhagen
- Flights from Tulsa to Midland
- Flights from Palm Springs to Yerevan
Airports near Knoxville
- Nashville International
- McGhee Tyson
- Asheville Regional
- Greenville–Spartanburg International
- Blue Grass
- Chattanooga Metropolitan
- Tri-Cities Regional