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Keflavik Intl

$1,002+ Cheap flights from Great Falls (GTF) 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — KEF
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Great Falls to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) 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 16, 2025.

Round-trip from

$1,002
(United Airlines)
From Great Falls to Reykjavik Keflavik Intl
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Find flight deals from Great Falls to Keflavik Intl

Cheapest flights from Great Falls to Keflavik Intl
Explore the most affordable flight options available from Great Falls to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This United Airlines deal was found by Cheapflights users on 6/13. 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 7/136:25 amGTF - KEF
2 stops18h 35mUnited Airlines
Sun 7/209:30 amKEF - GTF
2 stops41h 43mUnited Airlines
Deal found 6/13$1,002
This Delta deal was found by Cheapflights users on 6/13. 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.
Sun 7/136:00 amGTF - KEF
1 stop19h 00mDelta
Sun 7/209:30 amKEF - GTF
1 stop17h 02mDelta
Deal found 6/13$1,145

Cheapflights Fare Finder

Customize your flight search to find flights from Great Falls 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 16, 2025.
Use the filters below to find and compare flights from Great Falls to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Great Falls

Fly to

Keflavik Intl

Route

Depart

Return

Price

Great FallsReykjavik

GTF - KEF

GTFKEF

Great Falls

Sun 7/13

6:25 am-7:00 am

2 stops18h 35m

Reykjavik Keflavik Intl

Sun 7/20

9:30 am-9:13 pm

2 stops41h 43m

$1,002

Great FallsReykjavik

GTF - KEF

GTFKEF

Great Falls

Sun 7/13

6:00 am-7:00 am

1 stop19h 00m

Reykjavik Keflavik Intl

Sun 7/20

9:30 am-8:32 pm

1 stop17h 02m

$1,145

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/13

Best time to book a flight from Great Falls to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Great Falls 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 Great Falls 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 16, 2025.
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

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 Great Falls 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 Great Falls to Reykjavik Keflavik Intl?

    For a flight from Great Falls to Reykjavik Keflavik Intl, you will be flying from Great Falls. Great Falls (GTF) is just 3.5 mi from the center of the city. Great Falls is the only Great Falls airport and it handles 0 outbound flights to Reykjavik Keflavik Intl per day. 0 airlines have flights to Reykjavik Keflavik Intl from Great Falls on a regular basis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Great Falls 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 Great Falls to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Great Falls to Reykjavik Keflavik Intl Airport (average of $328). Flying from Great Falls 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.

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