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Keflavik Intl

$289+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — KEF
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$614
(Trip.com)

One-way from

$289
(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 August 20, 2025.

This Trip.com deal was found by Cheapflights users on 8/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:00 amBIL - KEF
1 stop18h 15mMultiple Airlines
Tue 10/214:50 pmKEF - BIL
1 stop13h 18mMultiple Airlines
Deal found 8/20$614
This Delta deal was found by Cheapflights users on 8/18. 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.
Sat 10/113:24 pmFCA - KEF
2 stops32h 56mDelta
Tue 10/218:45 amKEF - FCA
2 stops20h 24mDelta
Deal found 8/18$678
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/92:37 pmFCA - KEF
1 stop12h 48mMultiple Airlines
Wed 10/154:50 pmKEF - FCA
1 stop13h 08mMultiple Airlines
Deal found 8/18$682
This Delta deal was found by Cheapflights users on 8/18. 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.
Fri 10/106:10 pmFCA - KEF
2 stops54h 10mDelta
Tue 10/218:45 amKEF - FCA
2 stops20h 24mDelta
Deal found 8/18$690
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/1112:00 pmBIL - KEF
1 stop14h 30mUnited Airlines
Wed 9/179:30 amKEF - BIL
2 stops31h 46mUnited Airlines
Deal found 8/18$708
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Sat 10/111:07 pmFCA - KEF
2 stops14h 18mMultiple Airlines
Wed 10/154:50 pmKEF - FCA
1 stop13h 08mMultiple Airlines
Deal found 8/18$728
This Delta deal was found by Cheapflights users on 8/18. 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.
Sat 10/113:24 pmFCA - KEF
2 stops32h 56mDelta
Mon 10/208:45 amKEF - FCA
2 stops32h 31mDelta
Deal found 8/18$738
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/165:00 amBIL - KEF
2 stops21h 10mUnited Airlines
Tue 9/239:50 amKEF - BIL
2 stops35h 36mUnited Airlines
Deal found 8/19$745
This Delta deal was found by Cheapflights users on 8/18. 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.
Fri 10/106:10 pmFCA - KEF
2 stops54h 10mDelta
Mon 10/208:45 amKEF - FCA
2 stops32h 31mDelta
Deal found 8/18$750
This Delta deal was found by Cheapflights users on 8/20. 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 9/306:25 amBIL - KEF
2 stops17h 55mDelta
Tue 10/218:45 amKEF - BIL
2 stops20h 33mDelta
Deal found 8/20$753
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Wed 10/86:31 amFCA - KEF
1 stop17h 44mMultiple Airlines
Wed 10/154:50 pmKEF - FCA
1 stop13h 08mMultiple Airlines
Deal found 8/18$756
This Booking.com deal was found by Cheapflights users on 8/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:00 amBIL - KEF
3 stops21h 10mAir Canada
Wed 9/179:30 amKEF - BIL
2 stops19h 16mAir Canada
Deal found 8/18$775

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 August 20, 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

Tue 9/30

6:00 am-6:15 am

1 stop18h 15m

Reykjavik Keflavik Intl

Tue 10/21

4:50 pm-12:08 am

1 stop13h 18m

$614

KalispellReykjavik

FCA - KEF

FCAKEF

Kalispell Glacier Park

Sat 10/11

3:24 pm-6:20 am

2 stops32h 56m

Reykjavik Keflavik Intl

Tue 10/21

8:45 am-11:09 pm

2 stops20h 24m

$678

KalispellReykjavik

FCA - KEF

FCAKEF

Kalispell Glacier Park

Thu 10/9

2:37 pm-9:25 am

1 stop12h 48m

Reykjavik Keflavik Intl

Wed 10/15

4:50 pm-11:58 pm

1 stop13h 08m

$682

KalispellReykjavik

FCA - KEF

FCAKEF

Kalispell Glacier Park

Fri 10/10

6:10 pm-6:20 am

2 stops54h 10m

Reykjavik Keflavik Intl

Tue 10/21

8:45 am-11:09 pm

2 stops20h 24m

$690

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Thu 9/11

12:00 pm-8:30 am

1 stop14h 30m

Reykjavik Keflavik Intl

Wed 9/17

9:30 am-11:16 am

2 stops31h 46m

$708

KalispellReykjavik

FCA - KEF

FCAKEF

Kalispell Glacier Park

Sat 10/11

1:07 pm-9:25 am

2 stops14h 18m

Reykjavik Keflavik Intl

Wed 10/15

4:50 pm-11:58 pm

1 stop13h 08m

$728

KalispellReykjavik

FCA - KEF

FCAKEF

Kalispell Glacier Park

Sat 10/11

3:24 pm-6:20 am

2 stops32h 56m

Reykjavik Keflavik Intl

Mon 10/20

8:45 am-11:16 am

2 stops32h 31m

$738

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Tue 9/16

5:00 am-8:10 am

2 stops21h 10m

Reykjavik Keflavik Intl

Tue 9/23

9:50 am-3:26 pm

2 stops35h 36m

$745

KalispellReykjavik

FCA - KEF

FCAKEF

Kalispell Glacier Park

Fri 10/10

6:10 pm-6:20 am

2 stops54h 10m

Reykjavik Keflavik Intl

Mon 10/20

8:45 am-11:16 am

2 stops32h 31m

$750

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Tue 9/30

6:25 am-6:20 am

2 stops17h 55m

Reykjavik Keflavik Intl

Tue 10/21

8:45 am-11:18 pm

2 stops20h 33m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 30 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 August 20, 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.

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.

  • How long is the flight from Montana to Reykjavik Keflavik Intl Airport?

    There are many flights that can get you from Montana to Reykjavik Keflavik Intl Airport in 13h 40m. Fly via Delta, United Airlines, or Lufthansa to get the fastest option. The distance between Montana and Reykjavik Keflavik Intl Airport is about 3406 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Montana to Reykjavik Keflavik Intl Airport one-way?

    $585 is the cheapest one-way deal found within the past few days, from Air France. You may also be able to find cheap deals on Delta and Alaska Airlines, with prices starting from $585 and $687, 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 Bozeman Gallatin Field - Reykjavik Keflavik Intl. You may also consider Billings Logan Intl - Reykjavik Keflavik Intl or Missoula Johnson-Bell 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 $654). 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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