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Keflavik Intl

$576+ 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
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
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 julio 29, 2025.

Round-trip from

$576
(KLM)
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 julio 29, 2025.

This KLM deal was found by Cheapflights users on 7/29. 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.
lun. 9/155:01 pmGRB - KEF
1 stop8h 19mKLM
mié. 9/248:45 amKEF - GRB
1 stop16h 49mKLM
Deal found 7/29$576
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/155:01 pmGRB - KEF
1 stop8h 19mDelta
mié. 9/248:45 amKEF - GRB
2 stops18h 18mDelta
Deal found 7/28$581
This United Airlines deal was found by Cheapflights users on 7/29. 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.
lun. 9/151:22 pmGRB - KEF
2 stops12h 38mUnited Airlines
mié. 9/249:30 amKEF - GRB
2 stops42h 10mUnited Airlines
Deal found 7/29$874
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/155:30 pmGRB - KEF
2 stops49h 05mLufthansa
mar. 9/231:15 amKEF - GRB
2 stops20h 35mLufthansa
Deal found 7/29$1,298
This Lufthansa deal was found by Cheapflights users on 7/29. 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.
lun. 8/43:49 pmGRB - KEF
1 stop11h 41mMultiple Airlines
jue. 9/111:15 amKEF - GRB
2 stops20h 35mMultiple Airlines
Deal found 7/29$1,846

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 julio 29, 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

lun. 9/15

5:01 pm-6:20 am

1 stop8h 19m

Reykjavik Keflavik Intl

mié. 9/24

8:45 am-8:34 pm

1 stop16h 49m

$576

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

lun. 9/15

5:01 pm-6:20 am

1 stop8h 19m

Reykjavik Keflavik Intl

mié. 9/24

8:45 am-10:03 pm

2 stops18h 18m

$581

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

sáb. 1/10

12:53 pm-5:05 pm

2 stops22h 12m

Reykjavik Keflavik Intl

mié. 1/21

11:50 am-9:36 pm

2 stops39h 46m

$666

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

lun. 9/15

1:22 pm-7:00 am

2 stops12h 38m

Reykjavik Keflavik Intl

mié. 9/24

9:30 am-10:40 pm

2 stops42h 10m

$874

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

sáb. 1/10

12:53 pm-5:05 pm

2 stops22h 12m

Reykjavik Keflavik Intl

mié. 1/21

11:50 am-10:50 am

3 stops29h 00m

$916

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

lun. 9/15

5:30 pm-11:35 pm

2 stops49h 05m

Reykjavik Keflavik Intl

mar. 9/23

1:15 am-4:50 pm

2 stops20h 35m

$1,298

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

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 julio 29, 2025.
Read reviews from past customers who have flown Delta, KLM, and United Airlines from Green Bay to Reykjavik Keflavik Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,265 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.6
Okay
7,208 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $653). 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

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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