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Keflavik Intl

$764+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — KEF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$764
(United Airlines)
From Green Bay Austin-Straubel to Reykjavik Keflavik Intl
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Find 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. 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 9/151:22 pmGRB - KEF
1 stop14h 08mUnited Airlines
Wed 9/2411:00 amKEF - GRB
2 stops15h 43mUnited Airlines
Deal found 6/11$764
This KLM deal was found by Cheapflights users on 6/10. 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.
Mon 9/155:25 pmGRB - KEF
1 stop7h 55mKLM
Wed 9/248:45 amKEF - GRB
1 stop16h 53mKLM
Deal found 6/10$851
This Gurufare deal was found by Cheapflights users on 6/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/231:10 pmGRB - KEF
2 stops30h 00mLufthansa
Thu 7/311:15 amKEF - GRB
2 stops25h 22mLufthansa
Deal found 6/12$1,540
This Lufthansa deal was found by Cheapflights users on 6/10. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/233:54 pmGRB - KEF
1 stop11h 36mMultiple Airlines
Thu 7/311:15 amKEF - GRB
2 stops25h 23mMultiple Airlines
Deal found 6/10$2,348

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 June 12, 2025.
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 9/15

1:22 pm-8:30 am

1 stop14h 08m

Reykjavik Keflavik Intl

Wed 9/24

11:00 am-9:43 pm

2 stops15h 43m

$764

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Mon 9/15

5:25 pm-6:20 am

1 stop7h 55m

Reykjavik Keflavik Intl

Wed 9/24

8:45 am-8:38 pm

1 stop16h 53m

$851

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Wed 7/23

1:10 pm-12:10 am

2 stops30h 00m

Reykjavik Keflavik Intl

Thu 7/31

1:15 am-9:37 pm

2 stops25h 22m

$1,540

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Wed 7/23

3:54 pm-8:30 am

1 stop11h 36m

Reykjavik Keflavik Intl

Thu 7/31

1:15 am-9:38 pm

2 stops25h 23m

$2,348

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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.

Cheapflights Insights

Everything you need to know about your flight from Green Bay to Reykjavik Keflavik Intl Airport

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated June 12, 2025.
KLM
7.8
Good
1,358 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
United Airlines
7.4
Good
8,790 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Lufthansa
6.8
Okay
7,139 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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.

  • 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.

  • What is the cheapest month to book a flight from Green Bay to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Green Bay to Reykjavik Keflavik Intl Airport (average of $328). Flying from Green Bay to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $659). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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