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Keflavik Intl

$362+ Cheap flights from Montana to Keflavik Intl (KEF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — KEF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Montana to Keflavik Intl

Keep the following information in mind while searching for Montana to Keflavik Intl flight deals. Data was last updated June 12, 2025.

Round-trip from

$677
(Mytrip)

One-way from

$362
(Kiwi.com)
From Montana to Reykjavik Keflavik Intl
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One-way flight from Montana to Reykjavik Keflavik Intl
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Find flight deals from Montana to Keflavik Intl

Cheapest flights from Montana to Keflavik Intl
Explore the most affordable flight options available from Montana to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/25:55 pmBIL - KEF
2 stops32h 20mAir Canada
Wed 8/139:30 amKEF - BIL
2 stops37h 44mAir Canada
Deal found 6/10$677
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.
Sat 8/27:00 amBIL - KEF
2 stops43h 30mUnited Airlines
Wed 8/139:30 amKEF - BIL
2 stops56h 06mUnited Airlines
Deal found 6/11$681
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/211:46 amBIL - KEF
2 stops36h 34mAir France
Wed 8/139:30 amKEF - BIL
1 stop19h 40mAir France
Deal found 6/10$687
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/72:00 pmBIL - KEF
2 stops37h 40mMultiple Airlines
Fri 11/1411:45 amKEF - BIL
2 stops31h 14mMultiple Airlines
Deal found 6/10$702
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:15 amMSO - KEF
2 stops44h 05mUnited Airlines
Fri 8/159:30 amKEF - MSO
2 stops33h 53mUnited Airlines
Deal found 6/10$707
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.
Sat 9/205:20 pmHLN - KEF
2 stops33h 10mUnited Airlines
Thu 10/29:50 amKEF - HLN
2 stops34h 19mUnited Airlines
Deal found 6/11$736
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:40 amHLN - KEF
2 stops18h 40mDelta
Wed 10/18:45 amKEF - HLN
2 stops19h 52mDelta
Deal found 6/11$752
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2212:50 pmHLN - KEF
2 stops35h 30mAir France
Wed 10/111:25 amKEF - HLN
2 stops17h 12mAir France
Deal found 6/11$758
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:36 pmMSO - KEF
1 stop13h 24mMultiple Airlines
Fri 8/1510:30 amKEF - MSO
1 stop13h 26mMultiple Airlines
Deal found 6/10$792
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:22 amBZN - KEF
1 stop18h 33mMultiple Airlines
Fri 9/264:50 pmKEF - BZN
1 stop13h 22mMultiple Airlines
Deal found 6/10$806
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:45 amBIL - KEF
2 stops29h 50mLufthansa
Tue 11/114:45 pmKEF - BIL
2 stops35h 33mLufthansa
Deal found 6/10$889
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:15 amFCA - KEF
1 stop18h 15mUnited Airlines
Mon 9/299:50 amKEF - FCA
2 stops36h 18mUnited Airlines
Deal found 6/10$901

Cheapflights Fare Finder

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

Fly from

Montana

Fly to

Keflavik Intl

Route

Depart

Return

Price

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Sat 8/2

5:55 pm-8:15 am

2 stops32h 20m

Reykjavik Keflavik Intl

Wed 8/13

9:30 am-5:14 pm

2 stops37h 44m

$677

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Sat 8/2

7:00 am-8:30 am

2 stops43h 30m

Reykjavik Keflavik Intl

Wed 8/13

9:30 am-11:36 am

2 stops56h 06m

$681

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Sat 8/2

11:46 am-6:20 am

2 stops36h 34m

Reykjavik Keflavik Intl

Wed 8/13

9:30 am-11:10 pm

1 stop19h 40m

$687

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Fri 11/7

2:00 pm-10:40 am

2 stops37h 40m

Reykjavik Keflavik Intl

Fri 11/14

11:45 am-11:59 am

2 stops31h 14m

$702

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Thu 8/7

6:15 am-8:20 am

2 stops44h 05m

Reykjavik Keflavik Intl

Fri 8/15

9:30 am-1:23 pm

2 stops33h 53m

$707

HelenaReykjavik

HLN - KEF

HLNKEF

Helena

Sat 9/20

5:20 pm-8:30 am

2 stops33h 10m

Reykjavik Keflavik Intl

Thu 10/2

9:50 am-2:09 pm

2 stops34h 19m

$736

HelenaReykjavik

HLN - KEF

HLNKEF

Helena

Tue 9/23

5:40 am-6:20 am

2 stops18h 40m

Reykjavik Keflavik Intl

Wed 10/1

8:45 am-10:37 pm

2 stops19h 52m

$752

HelenaReykjavik

HLN - KEF

HLNKEF

Helena

Mon 9/22

12:50 pm-6:20 am

2 stops35h 30m

Reykjavik Keflavik Intl

Wed 10/1

11:25 am-10:37 pm

2 stops17h 12m

$758

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Thu 8/7

6:36 pm-2:00 pm

1 stop13h 24m

Reykjavik Keflavik Intl

Fri 8/15

10:30 am-5:56 pm

1 stop13h 26m

$792

BozemanReykjavik

BZN - KEF

BZNKEF

Bozeman Gallatin Field

Mon 9/22

5:22 am-5:55 am

1 stop18h 33m

Reykjavik Keflavik Intl

Fri 9/26

4:50 pm-12:12 am

1 stop13h 22m

$806

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 31 results
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Best time to book a flight from Montana to Keflavik Intl

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

What is the cheapest time of day to fly from MT to KEF?

Find hourly flight availability from Montana to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montana to Reykjavik Keflavik Intl Airport as you normally would.

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.
Read through reviews of airlines operating flights from Montana to Reykjavik, such as Alaska Airlines, Delta and KLM. 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
KLM
7.8
Good
1,358 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Air France
7.5
Good
1,463 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

Related info for your journey

Find useful and relevant information for your journey from Montana 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 are the cheapest airlines to fly from Montana to Reykjavik Keflavik Intl Airport one-way?

    $575 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on KLM and Alaska Airlines, with prices starting from $600 and $672, respectively.

  • What are the most popular routes from Montana to Reykjavik Keflavik Intl Airport?

    The most popular route from Montana to Reykjavik Keflavik Intl Airport is Billings Logan Intl - Reykjavik Keflavik Intl. You may also consider Missoula Johnson-Bell Field - Reykjavik Keflavik Intl or Bozeman Gallatin Field - Reykjavik Keflavik Intl.

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

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

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

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

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

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

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