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Keflavik Intl

$851+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — KEF
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars
Provider with most accurate pricing for Great Falls-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Great Falls-Reykjavik Keflavik Intl flights.
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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 January 8, 2026.

This Delta deal was found by Cheapflights users on 1/8. 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.
Mon 9/75:30 amGTF - KEF
2 stops18h 50mDelta
Mon 9/1411:25 amKEF - GTF
2 stops17h 19mDelta
Deal found 1/8$851
This Delta deal was found by Cheapflights users on 1/8. 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.
Tue 9/16:20 pmGTF - KEF
2 stops30h 00mDelta
Sun 9/69:30 amKEF - GTF
2 stops19h 14mDelta
Deal found 1/8$904
This United Airlines deal was found by Cheapflights users on 1/8. 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 9/77:00 amGTF - KEF
2 stops19h 30mUnited Airlines
Mon 9/1410:00 amKEF - GTF
3 stops17h 15mUnited Airlines
Deal found 1/8$931
This United Airlines deal was found by Cheapflights users on 1/8. 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.
Tue 9/17:00 amGTF - KEF
2 stops19h 50mUnited Airlines
Sun 9/610:00 amKEF - GTF
3 stops17h 15mUnited Airlines
Deal found 1/8$1,031
This Icelandair deal was found by Cheapflights users on 1/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:55 pmGTF - KEF
1 stop15h 05mMultiple Airlines
Mon 9/147:45 pmKEF - GTF
1 stop26h 28mMultiple Airlines
Deal found 1/8$1,092
This Expedia deal was found by Cheapflights users on 1/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:55 pmGTF - KEF
1 stop15h 05mMultiple Airlines
Sun 9/610:40 amKEF - GTF
1 stop11h 33mMultiple Airlines
Deal found 1/8$1,193
This Travelocity deal was found by Cheapflights users on 1/8. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:55 pmGTF - KEF
2 stops54h 55mMultiple Airlines
Sun 8/165:15 pmKEF - GTF
2 stops55h 00mMultiple Airlines
Deal found 1/8$1,694
This United Airlines deal was found by Cheapflights users on 1/8. 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 8/107:00 amGTF - KEF
2 stops43h 30mUnited Airlines
Sun 8/1612:00 pmKEF - GTF
2 stops39h 15mUnited Airlines
Deal found 1/8$1,932

Compare providers for flights from Great Falls to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to Keflavik Intl in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

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.

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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