81 € Boston Logan International (BOS) to Knoxville (TYS) Cheap Flights

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Flight deals from Boston Logan International to Knoxville

Looking for a cheap last-minute deal or the best return flight from Boston Logan International Airport to Knoxville Airport? If you want to travel next month, return fares start from 94 €. Find the lowest prices on one-way and return tickets right here.

Knoxville.81 € per passenger.Departing Sat, 7 Nov, returning Sat, 14 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 7 Nov, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sat, 14 Nov, arriving in Boston Logan International.Price includes taxes and charges.From 81 €, select.

Knoxville.82 € per passenger.Departing Sat, 14 Nov, returning Thu, 3 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 14 Nov, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Thu, 3 Dec, arriving in Boston Logan International.Price includes taxes and charges.From 82 €, select.

Knoxville.90 € per passenger.Departing Sat, 29 Aug, returning Sat, 5 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 29 Aug, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sat, 5 Sep, arriving in Boston Logan International.Price includes taxes and charges.From 90 €, select.

Knoxville.91 € per passenger.Departing Sat, 3 Oct, returning Sat, 24 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 3 Oct, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sat, 24 Oct, arriving in Boston Logan International.Price includes taxes and charges.From 91 €, select.

Knoxville.93 € per passenger.Departing Sat, 24 Oct, returning Sat, 7 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 24 Oct, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sat, 7 Nov, arriving in Boston Logan International.Price includes taxes and charges.From 93 €, select.

Knoxville.94 € per passenger.Departing Sat, 5 Sep, returning Sun, 6 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 5 Sep, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sun, 6 Sep, arriving in Boston Logan International.Price includes taxes and charges.From 94 €, select.

Knoxville.97 € per passenger.Departing Sat, 19 Sep, returning Sat, 10 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 19 Sep, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sat, 10 Oct, arriving in Boston Logan International.Price includes taxes and charges.From 97 €, select.

Knoxville.123 € per passenger.Departing Thu, 17 Dec, returning Fri, 25 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Thu, 17 Dec, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Fri, 25 Dec, arriving in Boston Logan International.Price includes taxes and charges.From 123 €, select.

Knoxville.154 € per passenger.Departing Sat, 22 Aug, returning Sat, 29 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Sat, 22 Aug, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sat, 29 Aug, arriving in Boston Logan International.Price includes taxes and charges.From 154 €, select.

Knoxville.165 € per passenger.Departing Fri, 25 Dec, returning Fri, 1 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Fri, 25 Dec, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Fri, 1 Jan, arriving in Boston Logan International.Price includes taxes and charges.From 165 €, select.

Knoxville.182 € per passenger.Departing Fri, 1 Jan, returning Sat, 2 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Boston Logan International on Fri, 1 Jan, arriving in Knoxville.Inbound direct flight with Allegiant Air departs from Knoxville on Sat, 2 Jan, arriving in Boston Logan International.Price includes taxes and charges.From 182 €, select.

Knoxville.266 € per passenger.Departing Fri, 29 Jan, returning Tue, 2 Feb.Return flight with United.Outbound indirect flight with United, departs from Boston Logan International on Fri, 29 Jan, arriving in Knoxville.Inbound indirect flight with United, departs from Knoxville on Tue, 2 Feb, arriving in Boston Logan International.Price includes taxes and charges.From 266 €, select.

Knoxville.299 € per passenger.Departing Mon, 8 Mar, returning Tue, 9 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Mon, 8 Mar, arriving in Knoxville.Inbound indirect flight with Delta, departs from Knoxville on Tue, 9 Mar, arriving in Boston Logan International.Price includes taxes and charges.From 299 €, select.

Knoxville.303 € per passenger.Departing Wed, 19 May, returning Sat, 22 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Wed, 19 May, arriving in Knoxville.Inbound indirect flight with Delta, departs from Knoxville on Sat, 22 May, arriving in Boston Logan International.Price includes taxes and charges.From 303 €, select.

Knoxville.320 € per passenger.Departing Fri, 26 Mar, returning Sat, 3 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Boston Logan International on Fri, 26 Mar, arriving in Knoxville.Inbound indirect flight with Delta, departs from Knoxville on Sat, 3 Apr, arriving in Boston Logan International.Price includes taxes and charges.From 320 €, select.

Find the cheapest month to fly from Boston Logan International to Knoxville

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to Knoxville flights are currently cheapest in November.

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Direct flights from Boston Logan International to Knoxville

Boston Logan International to Knoxville: Alternative routes

Compare routes from Boston Logan International to Knoxville below. You may find an airport to fly into that's cheaper, faster, or easier than Knoxville.

Knoxville

18km from central Knoxville

ClosestCheapest

from 81 €

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Boston to Knoxville: Flight information

The things to know before you go.

Cheapest flight found	81 €
Cheapest month to fly	November
Average flight time	2 hrs, 31 mins
Most popular airline	Allegiant Air
Average flights per week	4

Finding cheap flights from Boston Logan International to Knoxville: Frequently asked questions

How much are return flights from Boston Logan International to Knoxville?

The best price we found for a return flight from Boston Logan International to Knoxville is 81 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Boston Logan International to Knoxville?

2 hours and 31 minutes is the average flight time from Boston Logan International to Knoxville.

Which airlines fly direct from Boston Logan International to Knoxville?

Allegiant Air flies direct from Boston Logan International to Knoxville.

How many flights are there a week from Boston Logan International to Knoxville?

As of August 2026, there are 4 flights per week flying from Boston Logan International to Knoxville.

When is the cheapest time to fly from Boston Logan International to Knoxville?

The cheapest month to fly from Boston Logan International to Knoxville is usually November.

Which upcoming date is cheapest to fly from Boston Logan International Airport to Knoxville Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Knoxville Airport on Saturday, 7 November 2026.

Can I get a direct flight from Boston Logan International Airport to Knoxville Airport?

Yes – the average flight time is 2 hours and 31 minutes.

How can I find the best flight deal to Knoxville?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Knoxville but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Knoxville?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Knoxville is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Boston Logan International Airport to Knoxville with?

Currently, Allegiant Air offers the cheapest flight tickets to Knoxville.

Travelling from Boston Logan International Airport (BOS) to Knoxville Airport (TYS): what you need to know

Around 2 hours 25 minutes is how long you'll be travelling on a direct flight from Boston Logan International Airport to Knoxville Airport.
Arrive at the airport on time so you don't miss your BOS to TYS flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.
Travelling during a peak time such as July? School holidays and other popular seasons can lead to longer queues at security. Play it safe and get there up to four hours before an international flight and two hours before a domestic departure.
Allegiant Air offers direct flights from Boston Logan International Airport to Knoxville Airport. Book with this popular carrier, then get ready to check out the sights in Knoxville — and maybe even more of the United States if you have time.
Allegiant Air has the highest passenger demand on this route.
Allegiant Air is the most punctual carrier that offers BOS to TYS flights, with 76.19% of its services arriving as planned.
Think about adding a stopover when booking your ticket from Boston Logan International Airport to Knoxville Airport. Simply deselect 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here's where you can stop between BOS and TYS:
- Charlotte Douglas Airport
- Washington Ronald Reagan Airport
- Washington Dulles Airport

How to find the cheapest flights from Boston Logan International Airport (BOS) to Knoxville Airport (TYS)

Right now, 36 € is the lowest price we've seen for a one-way Boston Logan International Airport to Knoxville Airport flight. The best price for a return ticket is 81 €. Bear in mind that fares can change due to availability at the time of booking.
Book two months before your departure date. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from BOS to TYS.
Organise your trip for July. That's the cheapest month for flights from Boston Logan International Airport to Knoxville Airport. If you're flexible with your dates, use the 'Whole month' tool to see the lowest price across every month.
Never miss a deal on cheap flights from BOS to TYS by setting up a Price Alert. You'll get an email or notification through the app when a lower fare pops up.
Tailor your flights using filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Boston Logan International Airport to Knoxville Airport.

Handy information about Boston Logan International Airport (BOS)

BOS's address is One Harborside Drive.
When it comes to Boston Logan International Airport's on-time performance, data shows 75% of flights arrive within the scheduled timeframe.
Boston Logan International Airport is about 8 kilometres from central Boston. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 20 minutes or so to get there, depending on the traffic.
You can expect a trip time of roughly 25 minutes when using public transport.
Have an early flight from Boston Logan International Airport to Knoxville Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by picking one of these stays close to BOS:

Arriving at Knoxville Airport (TYS)

Consider staying in a hotel near TYS if you're taking a late Boston Logan International Airport to Knoxville Airport flight. Pick one of these accommodation options and avoid the hassle of a long transfer:
Travel at your own pace with a Knoxville Airport rental car. Pick up a set of wheels from Budget, Alamo or Avis and find adventure across Knoxville and beyond.
To get the lowest price, book your vehicle from Knoxville Airport about three weeks before you set off.

When to fly to Knoxville Airport (TYS)

It's time to work out your trip dates for your flight from Boston Logan International Airport to Knoxville Airport. October is the busiest month to visit Knoxville. If you'd like a more relaxed vibe, go in March.
Lock in your flight from Boston Logan International Airport to Knoxville Airport for July if you'd like to go to Knoxville during its warmest month. You can expect temperatures of between 17ºC (63ºF) and 32ºC (90ºF).
January sees average temperatures of between -6ºC (21ºF) and 11ºC (52ºF). Look for cheap tickets from BOS to TYS sometime then if you want to travel when it's cooler.

Explore more of the United States

Columbus is just one of the many places in the United States waiting to be discovered after you've seen Knoxville. Around 451 kilometres away to the north, top sights here include Franklin Park Conservatory and Botanical Gardens, Whetstone Park / Park of Roses and Ohio Theatre.
Around 467 kilometres north-west of Knoxville, Indianapolis is another essential stop in the United States. Experience this destination's highlights firsthand at Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis.