HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$629+ Cheap flights from Knoxville (TYS) to Keflavik Intl (KEF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — KEF
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Knoxville to Keflavik Intl

Cheapest flights from Knoxville to Keflavik Intl
Explore the most affordable flight options available from Knoxville to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.

This KLM deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:03 pm
TYS
-
KEF
2 stops17h 27m
KLM
Wed 5/611:25 am
KEF
-
TYS
2 stops16h 29m
KLM
Deal found 3/8$629
This KLM deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2011:44 am
TYS
-
KEF
1 stop14h 36m
KLM
Fri 5/299:30 am
KEF
-
TYS
1 stop17h 27m
KLM
Deal found 3/9$734
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/208:35 am
TYS
-
KEF
2 stops17h 45m
Delta
Fri 5/298:50 am
KEF
-
TYS
2 stops14h 56m
Delta
Deal found 3/8$838
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:00 am
TYS
-
KEF
1 stop18h 05m
Multiple Airlines
Tue 4/285:10 pm
KEF
-
TYS
2 stops21h 26m
Multiple Airlines
Deal found 3/7$852
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:44 am
TYS
-
KEF
2 stops17h 46m
Delta
Sat 5/308:50 am
KEF
-
TYS
1 stop16h 35m
Delta
Deal found 3/8$858
This Booking.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:45 am
TYS
-
KEF
2 stops22h 10m
Air Canada
Mon 8/319:15 am
KEF
-
TYS
2 stops33h 22m
Air Canada
Deal found 3/12$863
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:35 pm
TYS
-
KEF
1 stop14h 55m
United Airlines
Mon 8/3110:00 am
KEF
-
TYS
2 stops34h 59m
United Airlines
Deal found 3/12$865

Find flight deals from Knoxville to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$629
(KLM)
Provider with most accurate pricing for Knoxville McGhee Tyson-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Reykjavik Keflavik Intl flights.
Search Deals
From Knoxville McGhee Tyson to Reykjavik Keflavik Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Keflavik Intl 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, Cheapflights users made 2,558,603 searches. Data last updated March 12, 2026.
Use the filters below to find and compare flights from Knoxville to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleReykjavik

TYS - KEF

TYSKEF

Knoxville McGhee Tyson

Sat 4/25

12:03 pm-9:30 am

2 stops17h 27m

Reykjavik Keflavik Intl

Wed 5/6

11:25 am-11:54 pm

2 stops16h 29m

$629

KnoxvilleReykjavik

TYS - KEF

TYSKEF

Knoxville McGhee Tyson

Sun 4/26

5:40 am-9:30 am

2 stops23h 50m

Reykjavik Keflavik Intl

Sun 5/3

11:25 am-11:17 am

2 stops27h 52m

$679

KnoxvilleReykjavik

TYS - KEF

TYSKEF

Knoxville McGhee Tyson

Wed 5/20

11:44 am-6:20 am

1 stop14h 36m

Reykjavik Keflavik Intl

Fri 5/29

9:30 am-10:57 pm

1 stop17h 27m

$734

KnoxvilleReykjavik

TYS - KEF

TYSKEF

Knoxville McGhee Tyson

Wed 5/20

8:35 am-6:20 am

2 stops17h 45m

Reykjavik Keflavik Intl

Fri 5/29

8:50 am-7:46 pm

2 stops14h 56m

$838

KnoxvilleReykjavik

TYS - KEF

TYSKEF

Knoxville McGhee Tyson

Wed 5/20

7:00 am-8:30 am

2 stops45h 30m

Reykjavik Keflavik Intl

Fri 5/29

11:30 am-12:30 am

2 stops17h 00m

$952
Quickest round-trip

KnoxvilleReykjavik

TYS - KEF

TYSKEF

Knoxville McGhee Tyson

Sat 7/11

7:19 pm-8:30 am

1 stop9h 11m

Reykjavik Keflavik Intl

Sat 7/18

9:15 am-12:30 am

2 stops19h 15m

$1,008
Cheapest one-way
Quickest one-way

KnoxvilleReykjavik

TYS - KEF

TYSKEF

Knoxville McGhee Tyson

Sat 5/16

5:55 pm-8:50 am

1 stop10h 55m

$756

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Sorted by cheapest first

Compare providers for flights from Knoxville to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Keflavik Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Knoxville to Reykjavik Keflavik Intl?

    Most people fly from Knoxville McGhee Tyson (TYS) if they book a flight from Knoxville to Reykjavik Keflavik Intl. On average, McGhee Tyson has 0 outbound flights to Reykjavik Keflavik Intl per day from 0 airlines. Knoxville McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.

  • How long is the flight from Knoxville to Reykjavik Keflavik Intl Airport?

    There are many flights that can get you from Knoxville to Reykjavik Keflavik Intl Airport in 17h 27m. Fly via KLM or Delta to get the fastest option. The distance between Knoxville and Reykjavik Keflavik Intl Airport is about 3168 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Knoxville to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Knoxville to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Keflavik Intl.

  • Can I find deals for business class flights from Knoxville to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Knoxville to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Keflavik Intl flights
Memphis to Keflavik Intl flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.