Cheap flights from Knoxville to Boston from $67

In general, May is the cheapest month to fly from Knoxville to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $175. If you aren’t able to travel during the month of May, then book flights to Boston from Knoxville during February instead. Flights to Boston in February, while not as cheap as those in May, still average around $178.

The cheapest day to depart from Knoxville to Boston is on a Wednesday when prices can be found for as low as $144. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $201.

Fly from Knoxville McGhee Tyson to Boston Logan Intl for the best Knoxville McGhee Tyson - Boston Logan Intl flight prices

You are more likely to see cheaper flights to Boston from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $251 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Knoxville for as low as $208 on momondo.

There is only 1 cabin class available to choose from on Knoxville to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of May 2026, prices for Knoxville to Boston flights are approximately 10% cheaper when compared to flights at the same time last year.

Southwest and United Airlines are the most popular carriers operating from Knoxville McGhee Tyson to Boston Logan Intl

American Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Boston from Knoxville according to our data. American Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 6 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 6% of flights between Knoxville and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Allegiant Air have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.