$51 Find Cheap Flights from Knoxville to New Hampshire

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to New Hampshire departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to New Hampshire

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to New Hampshire, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to New Hampshire, as well as popular online travel agencies
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Cheap Flights from Knoxville to New Hampshire

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Bostonnonstop$87
Portland
Portland1 stop$279
Boston
Bostonnonstop$87
Portland
Portland1 stop$279

Book Cheap Knoxville to New Hampshire Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to New Hampshire that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to New Hampshire

Thu, Mar 5 - Sun, Mar 8
Allegiant Air Logo
6:30 am - 8:40 am
TYS
-
BOS
2h 10mnonstop
Allegiant Air Logo
9:30 am - 12:02 pm
BOS
-
TYS
2h 32mnonstop
$87Allegiant Air
Thu, Mar 5 - Sun, Mar 8
Allegiant Air Logo
6:30 am - 8:40 am
TYS
-
BOS
2h 10mnonstop
Allegiant Air Logo
9:30 am - 12:02 pm
BOS
-
TYS
2h 32mnonstop
$93Allegiant Air
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
6:30 am - 8:40 am
TYS
-
BOS
2h 10mnonstop
Multiple Airlines Logo
6:10 pm - 11:01 am
BOS
-
TYS
16h 51m
1 stop
$173Multiple Airlines
Tue, Jun 2 - Tue, Jun 23
Southwest Logo
8:15 am - 12:20 pm
TYS
-
PWM
4h 05m
1 stop
Southwest Logo
3:45 pm - 9:15 pm
PWM
-
TYS
5h 30m
1 stop
$279Southwest
Tue, Jun 2 - Tue, Jun 23
Southwest Logo
12:50 pm - 10:20 pm
TYS
-
PWM
9h 30m
2 stops
Southwest Logo
3:45 pm - 9:15 pm
PWM
-
TYS
5h 30m
1 stop
$284Southwest
Wed, Jun 24 - Mon, Jun 29
American Airlines Logo
6:26 pm - 12:07 am
TYS
-
PWM
5h 41m
1 stop
American Airlines Logo
6:00 am - 1:16 pm
PWM
-
TYS
7h 16m
1 stop
$289American Airlines
Sat, May 23 - Tue, Jun 2
American Airlines Logo
6:15 am - 4:53 pm
TYS
-
ORH
10h 38m
1 stop
American Airlines Logo
5:18 pm - 12:44 pm
ORH
-
TYS
19h 26m
2 stops
$294American Airlines
Tue, Apr 7 - Sat, Apr 11
Multiple Airlines Logo
12:00 pm - 5:29 pm
TYS
-
MHT
29h 29m
1 stop
Multiple Airlines Logo
6:09 pm - 12:24 pm
MHT
-
TYS
18h 15m
1 stop
$299Multiple Airlines
Thu, Apr 9 - Tue, Apr 14
United Airlines Logo
9:40 am - 1:55 pm
TYS
-
MHT
4h 15m
1 stop
United Airlines Logo
2:30 pm - 7:42 pm
MHT
-
TYS
5h 12m
1 stop
$305United Airlines
Mon, May 4 - Sat, May 9
United Airlines Logo
7:18 pm - 11:59 pm
TYS
-
PWM
4h 41m
1 stop
United Airlines Logo
9:20 am - 2:34 pm
PWM
-
TYS
5h 14m
1 stop
$318United Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to New Hampshire flights

Get data-powered insights and trends into flights from Knoxville to New Hampshire to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Knoxville to New Hampshire?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to New Hampshire, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knoxville to New Hampshire is May, when tickets cost $176 (return) on average. On the other hand, the most expensive months are November and October, when the average cost of round-trip tickets is $297 and $274 respectively.

What’s the cheapest day of the week to fly from Knoxville to New Hampshire?

The average price of all round-trip flights from Knoxville to New Hampshire clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to New Hampshire on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Knoxville to New Hampshire. For your return ticket, we recommend flying on a Wednesday and avoiding Tuesdays for the best deals.

How far in advance should I book a flight from Knoxville to New Hampshire?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to New Hampshire, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Knoxville to New Hampshire, you should book around 3 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$51
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Knoxville to Boston

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from Knoxville to New Hampshire?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to New Hampshire.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to New Hampshire?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Knoxville to New Hampshire is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to New Hampshire?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Knoxville to New Hampshire with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to New Hampshire?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Knoxville to New Hampshire up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to New Hampshire?

    The cheapest time of day to fly to New Hampshire is generally in the morning, when round-trip flights cost $180 on average. The most expensive time of day to fly to New Hampshire is generally in the morning, which is peak travel time and where the average cost of a ticket is $180.

Reviews of the top airlines flying from Knoxville to New Hampshire

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to New Hampshire. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to New Hampshire? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9286 reviews
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
Airline reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

2.0 MediocreAnnie Caroline, Feb 2026
SFO - LAX
Read more United Airlines reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Much better than Spirit. I was please by the easy fast check in and boarding

Everything was on time Will use united again for sure

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

The flight was fine, once we got underway. It was more than hour delayed

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Waited for oxygen tanks for 30 minutes after boarding was complete.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

The flight was on time/early, attentive crew, and everything overall went smoothly. Disappointed that WIFI was not working for the flight.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

Flight was on time and the meal and service were good.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

Everything you need to know for your flight from Knoxville to New Hampshire

Information on your arrival and departure airports