Find cheap Allegiant Air flights to Knoxville from $191
Round-trip
1 adult
Economy
0 bags
Sat 6/15
Sat 6/22
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Good to know
Low season
January
High season
July
Cheapest flight
$191
Average price round-trip
$173
Good deal round-trip
$137
Good deal one-way
$75
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Washington Dulles Airport to Knoxville
(avg. price over the last 2 weeks)
or less
or less
When to book flights with Allegiant Air to Knoxville
Average price per month
Flight prices as travel date approaches
FAQs for flying to Knoxville with Allegiant Air
Is Allegiant Air cheaper than other airlines flying to Knoxville?
Allegiant Air is the cheapest airline flying to Knoxville with an average return price of $164. Flights to Knoxville with American Airlines cost $349 on average, while United Airlines cost $400.
Which other airlines fly to Knoxville?
Along with Allegiant Air, you can also fly to Knoxville with American Airlines, Delta, United Airlines, American Airlines and United Airlines.
How much is a flight to Knoxville with Allegiant Air?
On average, Allegiant Air flights to Knoxville cost $102 for one-way and $164 return.
Which airport do Allegiant Air flights to Knoxville fly into?
You’ll fly into Knoxville McGhee Tyson when flying to Knoxville with Allegiant Air.
See more FAQs
Top tips for your flights to Knoxville with Allegiant Air
Looking to fly from the United States to Knoxville with Allegiant Air? 25% of our users found flights for the following prices or less: From Chicago Midway Airport $46 one-way, $81 round-trip; from Newark Airport $75 one-way, $137 round-trip; from Boston $105 one-way, $192 round-trip.
The cheapest flight to Knoxville with Allegiant Air found on KAYAK in the last 2 weeks departed from Jacksonville and cost $38.
Allegiant Air customer reviews
7.4
GoodBased on 1,018 verified guest reviews
6.2Food
7.7Boarding
6.9Comfort
5.9Entertainment
8.2Crew
Pros +
Cons -
Traveler rating:
Sort by:
Date
A
3.3 Poor
Anonymous, Jun 2017
Cons:After arriving to the airport to check in we were told there was a 6 hr delay. Thanks for the heads up since we could've hung out more before heading to the airport.
A
10.0 Wonderful
Anonymous, Nov 2018
Pros:Quick
A
7.0 Good
Anonymous, Oct 2017
Pros:Nonstop on time and as expected
C
10.0 Wonderful
Christine, Sep 2017
Pros:2 hours and one flight. Done!
Cons:No entertainment
A
2.0 Poor
Anonymous, Jan 2020
Cons:I tried to cancel this trip but was told I would have to pay more in order to receive a refund. Very disappointed customer as I have traveled with Allegiant many times and the one time I try to cancel my flight, I’m told I have to pay a fee which was more expensive than the actual price of the ticket. Waste of money.
C
5.3 Fair
Christy, Oct 2017
Pros:The price was unbeatable, especially if you don't pay for a checked bag, carry-on, or a soda on the flight. Very smooth flight as well.
Cons:The plane interior looks like it was gutted, then fitted with hard, plastic seats. No headrests, no privacy for the flight attendants. Everything costs extra.
T
2.0 Poor
Tamika, May 2017
Cons:They booked me and two others for the same seat
A
9.6 Wonderful
Anonymous, Jan 2018
Pros:Nice having assigned seat. Boarding pass can be obtained through mobile app.
Cons:Seats do not recline, so not real comfortable.
A
10.0 Wonderful
Anonymous, Oct 2016
Pros:Perfect flight!
V
7.3 Good
Vincent, Feb 2018
Pros:Everyone from desk to gate to crew were very friendly. I like alla carte airlines for thier value. I dont need a free soda for and extra $100 ticket price.
Cons:Needs better organization during boarding. Everyone piles up near the gate. Thry can copy Southwest and make the process smoother.