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Keflavik Intl

$743+ Cheap flights from Green Bay (GRB) 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — KEF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Green Bay to Keflavik Intl

Cheapest flights from Green Bay to Keflavik Intl
Explore the most affordable flight options available from Green Bay 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.
Sat 8/223:30 pm
GRB
-
KEF
2 stops35h 25m
United Airlines
Thu 9/312:00 pm
KEF
-
GRB
1 stop9h 43m
United Airlines
Deal found 1/27$743
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:00 pm
GRB
-
KEF
1 stop10h 40m
KLM
Thu 9/38:50 am
KEF
-
GRB
1 stop12h 43m
KLM
Deal found 1/27$784
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:45 am
GRB
-
KEF
1 stop16h 45m
United Airlines
Sat 9/2610:00 am
KEF
-
GRB
2 stops35h 43m
United Airlines
Deal found 1/28$850
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Mon 6/13:30 pm
GRB
-
KEF
1 stop12h 00m
United Airlines
Mon 6/812:00 pm
KEF
-
GRB
1 stop12h 05m
United Airlines
Deal found 1/26$970
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:50 am
GRB
-
KEF
2 stops17h 40m
Air France
Sun 10/1811:25 am
KEF
-
GRB
2 stops38h 12m
Air France
Deal found 1/27$1,037
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.
Fri 9/1811:53 am
GRB
-
KEF
1 stop14h 47m
KLM
Sat 9/269:30 am
KEF
-
GRB
1 stop16h 56m
KLM
Deal found 1/28$1,165
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.
Sun 10/113:30 pm
GRB
-
KEF
2 stops12h 15m
United Airlines
Sun 10/189:15 am
KEF
-
GRB
3 stops16h 59m
United Airlines
Deal found 1/27$1,332
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
GRB
-
KEF
2 stops46h 40m
British Airways
Sun 4/1910:20 am
KEF
-
GRB
2 stops40h 19m
British Airways
Deal found 1/28$1,449
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:10 pm
GRB
-
KEF
2 stops29h 15m
Lufthansa
Fri 8/1412:25 am
KEF
-
GRB
2 stops25h 49m
Lufthansa
Deal found 1/27$1,559

Find flight deals from Green Bay to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) 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

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$970
(United Airlines)
Provider with most accurate pricing for Green Bay Austin-Straubel-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Reykjavik Keflavik Intl flights.
Search Deals
From Green Bay Austin-Straubel to Reykjavik Keflavik Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay 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 Green Bay to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Green Bay

Fly to

Keflavik Intl

Route

Depart

Return

Price

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Mon 6/1

1:11 pm-8:50 am

2 stops14h 39m

Reykjavik Keflavik Intl

Mon 6/8

12:00 pm-7:10 pm

1 stop12h 10m

$970

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Wed 4/15

9:46 am-9:40 am

2 stops42h 54m

Reykjavik Keflavik Intl

Sun 4/19

10:20 am-11:34 pm

2 stops42h 14m

$1,449

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Mon 6/1

5:30 am-4:15 pm

2 stops29h 45m

Reykjavik Keflavik Intl

Mon 6/8

5:05 pm-8:35 pm

3 stops32h 30m

$4,528

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

  • Most accurate provider: When it comes to deals on Green Bay-Reykjavik Keflavik Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Green Bay-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Green Bay-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Green Bay-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 Green Bay to Keflavik Intl

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

    Located just 5.9 mi from the city center, Green Bay Austin-Straubel is the airport most travelers will use when flying to Reykjavik Keflavik Intl from Green Bay. Booking flights from Austin-Straubel (GRB) to Reykjavik Keflavik Intl should be relatively easy as there are 0 daily outbound flights to Reykjavik Keflavik Intl from 0 different airlines.

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

    Departing from Green Bay to Reykjavik Keflavik Intl Airport will take you 14h 39m. The distance between Green Bay and Reykjavik Keflavik Intl Airport is about 2803 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Green Bay 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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