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Keflavik Intl

$874+ Cheap flights from Appleton (ATW) 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — KEF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Appleton to Keflavik Intl

Cheapest flights from Appleton to Keflavik Intl
Explore the most affordable flight options available from Appleton to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 9/172:43 pm
ATW
-
KEF
1 stop12h 47m
United Airlines
Sat 9/2610:00 am
KEF
-
ATW
2 stops14h 16m
United Airlines
Deal found 1/27$874
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/273:42 pm
ATW
-
KEF
2 stops16h 33m
Lufthansa
Thu 3/52:05 am
KEF
-
ATW
2 stops25h 22m
Lufthansa
Deal found 1/28$1,009
This KLM deal was found by Cheapflights users on 1/28. 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.
Thu 9/1712:06 pm
ATW
-
KEF
1 stop14h 34m
KLM
Sat 9/269:30 am
KEF
-
ATW
1 stop16h 57m
KLM
Deal found 1/28$1,015
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:10 pm
ATW
-
KEF
2 stops29h 15m
Lufthansa
Fri 8/1412:25 am
KEF
-
ATW
2 stops25h 33m
Lufthansa
Deal found 1/28$1,566
This Scandinavian Airlines deal was found by Cheapflights users on 1/27. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:29 am
ATW
-
KEF
2 stops28h 51m
Multiple Airlines
Sat 9/265:10 pm
KEF
-
ATW
3 stops32h 30m
Multiple Airlines
Deal found 1/27$2,145
This Scandinavian Airlines deal was found by Cheapflights users on 1/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:29 am
ATW
-
KEF
2 stops28h 51m
Multiple Airlines
Fri 8/141:25 am
KEF
-
ATW
3 stops24h 15m
Multiple Airlines
Deal found 1/28$3,490
This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:38 am
ATW
-
KEF
3 stops19h 17m
Multiple Airlines
Fri 3/66:10 pm
KEF
-
ATW
2 stops29h 52m
Multiple Airlines
Deal found 1/28$3,533

Find flight deals from Appleton to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Appleton (ATW) 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,009
(KAYAK)
Provider with most accurate pricing for Appleton Intl-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-Reykjavik Keflavik Intl flights.
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From Appleton Intl to Reykjavik Keflavik Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Appleton 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 January 29, 2026.
Use the filters below to find and compare flights from Appleton to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Appleton

Fly to

Keflavik Intl

Route

Depart

Return

Price

AppletonReykjavik

ATW - KEF

ATWKEF

Appleton Intl

Fri 2/27

3:42 pm-2:15 pm

2 stops16h 33m

Reykjavik Keflavik Intl

Thu 3/5

2:05 am-9:27 pm

2 stops25h 22m

$1,009

AppletonReykjavik

ATW - KEF

ATWKEF

Appleton Intl

Fri 2/27

9:38 am-10:55 am

3 stops19h 17m

Reykjavik Keflavik Intl

Fri 3/6

6:10 pm-6:02 pm

2 stops29h 52m

$3,533

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

  • Most accurate provider: When it comes to deals on Appleton-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 Appleton-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Appleton-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Appleton-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 Appleton-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 Appleton to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Appleton 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 Appleton 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 Appleton to Reykjavik Keflavik Intl?

    For a flight from Appleton to Reykjavik Keflavik Intl, you will be flying from Appleton Intl. Appleton Intl (ATW) is just 5.1 mi from the center of the city. Appleton Intl is the only Appleton airport and it handles 0 outbound flights to Reykjavik Keflavik Intl per day. 0 airlines have flights to Reykjavik Keflavik Intl from Appleton Intl on a regular basis.

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

    A quick flight from Appleton to Reykjavik Keflavik Intl Airport can take about 16h 33m. Lufthansa provides one of the quickest options available for as low as $1,009. There are 2827 mi between Appleton and Reykjavik Keflavik Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Appleton 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

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