Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Knoxville to Ireland from $455

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Ireland departing on 8/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Knoxville to Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:45 am - 7:20 am
TYS
-
DUB
20h 35m
1 stop
United Airlines Logo
9:20 am - 2:37 pm
DUB
-
TYS
34h 17m
2 stops
$718United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
5:57 pm - 7:45 am
TYS
-
DUB
32h 48m
2 stops
United Airlines Logo
9:20 am - 2:37 pm
DUB
-
TYS
34h 17m
2 stops
$727United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
6:30 am - 8:15 am
TYS
-
DUB
20h 45m
2 stops
United Airlines Logo
9:50 am - 1:13 pm
DUB
-
TYS
32h 23m
2 stops
$731United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
5:45 am - 7:20 am
TYS
-
DUB
20h 35m
1 stop
United Airlines Logo
8:50 am - 2:37 pm
DUB
-
TYS
10h 47m
1 stop
$750United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
5:45 am - 7:20 am
TYS
-
DUB
20h 35m
1 stop
United Airlines Logo
9:50 am - 1:13 pm
DUB
-
TYS
32h 23m
2 stops
$753United Airlines
Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
5:45 am - 7:20 am
TYS
-
DUB
20h 35m
1 stop
United Airlines Logo
12:30 pm - 11:57 pm
DUB
-
TYS
16h 27m
1 stop
$780United Airlines
Tue, Sep 1 - Tue, Sep 15
Air Canada Logo
10:00 am - 8:15 am
TYS
-
DUB
17h 15m
2 stops
Air Canada Logo
9:20 am - 8:48 pm
DUB
-
TYS
40h 28m
2 stops
$781Air Canada
Tue, Sep 1 - Sat, Sep 12
British Airways Logo
8:39 pm - 7:35 pm
TYS
-
DUB
17h 56m
2 stops
British Airways Logo
8:20 pm - 3:59 pm
DUB
-
TYS
24h 39m
2 stops
$783British Airways
Mon, Sep 14 - Thu, Sep 24
Lufthansa Logo
1:54 pm - 7:30 am
TYS
-
SNN
12h 36m
1 stop
Lufthansa Logo
12:00 pm - 12:30 am
SNN
-
TYS
41h 30m
2 stops
$6,856Lufthansa
Sat, May 30 - Sat, Jun 13
British Airways Logo
1:35 pm - 11:20 am
TYS
-
SNN
16h 45m
2 stops
British Airways Logo
7:30 am - 10:32 pm
SNN
-
TYS
20h 02m
2 stops
$6,993British Airways
Sat, May 30 - Sat, Jun 13

United Airlines flights from Knoxville to Ireland

Our best United Airlines deals on Knoxville to Ireland flight tickets
United Airlines
Sep 1
TYS5:45 amKnoxville McGhee Tyson
20h 35m
1 stop
DUB7:20 amDublin
Sep 15
DUB9:20 amDublin
34h 17m
2 stops
TYS2:37 pmKnoxville McGhee Tyson
$718
United Airlines
Sep 1
TYS5:57 pmKnoxville McGhee Tyson
32h 48m
2 stops
DUB7:45 amDublin
Sep 15
DUB9:20 amDublin
34h 17m
2 stops
TYS2:37 pmKnoxville McGhee Tyson
$727
United Airlines
Sep 1
TYS6:30 amKnoxville McGhee Tyson
20h 45m
2 stops
DUB8:15 amDublin
Sep 15
DUB9:50 amDublin
32h 23m
2 stops
TYS1:13 pmKnoxville McGhee Tyson
$731

Air Canada flights from Knoxville to Ireland

Our best Air Canada deals on Knoxville to Ireland flight tickets
Air Canada
Sep 1
TYS10:00 amKnoxville McGhee Tyson
17h 15m
2 stops
DUB8:15 amDublin
Sep 12
DUB9:20 amDublin
40h 28m
2 stops
TYS8:48 pmKnoxville McGhee Tyson
$781
Air Canada
Sep 13
TYS5:45 amKnoxville McGhee Tyson
21h 00m
2 stops
DUB7:45 amDublin
Sep 24
DUB9:20 amDublin
19h 35m
2 stops
TYS11:55 pmKnoxville McGhee Tyson
$822
Air Canada
Jul 22
TYS5:45 amKnoxville McGhee Tyson
21h 00m
2 stops
DUB7:45 amDublin
Jul 29
DUB9:20 amDublin
16h 19m
2 stops
TYS8:39 pmKnoxville McGhee Tyson
$874

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 20, 2026.
Use the filters below to find and compare flights from Knoxville to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Tue 9/1

5:45 am-7:20 am

1 stop20h 35m

Dublin

Tue 9/15

9:20 am-2:37 pm

2 stops34h 17m

$718

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Tue 9/1

5:57 pm-7:45 am

2 stops32h 48m

Dublin

Tue 9/15

9:20 am-2:37 pm

2 stops34h 17m

$727

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Tue 9/1

6:30 am-8:15 am

2 stops20h 45m

Dublin

Tue 9/15

9:50 am-1:13 pm

2 stops32h 23m

$731
Quickest round-trip

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Tue 9/1

5:45 am-7:20 am

1 stop20h 35m

Dublin

Tue 9/15

8:50 am-2:37 pm

1 stop10h 47m

$750

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Tue 9/1

5:45 am-7:20 am

1 stop20h 35m

Dublin

Tue 9/15

9:50 am-1:13 pm

2 stops32h 23m

$753

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Tue 9/1

5:45 am-7:20 am

1 stop20h 35m

Dublin

Tue 9/15

12:30 pm-11:57 pm

1 stop16h 27m

$780

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Tue 9/1

10:00 am-8:15 am

2 stops17h 15m

Dublin

Sat 9/12

9:20 am-8:48 pm

2 stops40h 28m

$781

KnoxvilleDublin

TYS - DUB

TYSDUB

Knoxville McGhee Tyson

Mon 9/14

8:39 pm-7:35 pm

2 stops17h 56m

Dublin

Thu 9/24

8:20 pm-3:59 pm

2 stops24h 39m

$783

KnoxvilleShannon

TYS - SNN

TYSSNN

Knoxville McGhee Tyson

Sat 5/30

1:54 pm-7:30 am

1 stop12h 36m

Shannon

Sat 6/13

12:00 pm-12:30 am

2 stops41h 30m

$6,856

KnoxvilleShannon

TYS - SNN

TYSSNN

Knoxville McGhee Tyson

Sat 5/30

1:35 pm-11:20 am

2 stops16h 45m

Shannon

Sat 6/13

7:30 am-10:32 pm

2 stops20h 02m

$6,993

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ireland from

How to get the cheapest flight ticket from Knoxville to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

In general, January is the cheapest month to fly from Knoxville to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $483. If you aren’t able to travel to Ireland during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $557.

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $811 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Knoxville for as low as $574 on momondo.

Can stopping save me money on Knoxville to Ireland flights?

You could potentially save up to 60% on your flight if you consider stops on a Knoxville to Ireland flight.

Cheap Knoxville to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Ireland

Fastest flight time

10h 20m

Direct flights

None
The fastest flight from Knoxville to Ireland takes 10h 20m
There are no direct flights from Knoxville to Ireland. There are no popular flight routes from Knoxville to Ireland.
Search flight deals

Frequently asked questions about flying from Knoxville to Ireland

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Ireland?

    Prices for flights from Knoxville McGhee Tyson Airport to Ireland are refreshed on a daily basis.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Ireland?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Knoxville to Ireland

Compare and see reviews for airlines that fly from Knoxville to Ireland with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $478Free CancellationRating
6.7
7,895 reviews
Search British Airways flights
DeltaPriceFrom $488Free CancellationRating
7.9
8,418 reviews
Search Delta flights
United AirlinesPriceFrom $488Free CancellationRating
7.4
9,605 reviews
Search United Airlines flights
KLMPriceFrom $536Free CancellationRating
7.8
1,501 reviews
Search KLM flights
American AirlinesPriceFrom $582Free CancellationRating
7.1
11,623 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to Ireland for you.

Can I find flights from Knoxville to Ireland with flexible booking policies on momondo?

All flight searches from Knoxville to Ireland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Knoxville to Ireland?

momondo helps you find the best flight between Knoxville and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Knoxville to Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Knoxville to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 5/20
Wed 5/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom $451
Flights to Shannon, Clarefrom $573
Flights to Corkfrom $595
Flights to Milltown (Kerry)from $852
Flights to Knockfrom $797
Flights to Donegalfrom $1,002