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Keflavik Intl

$465+ Cheap flights from Missoula (MSO) 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — KEF
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap flight deals from Missoula to Keflavik Intl

Cheapest flights from Missoula to Keflavik Intl
Explore the most affordable flight options available from Missoula to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 9/3012:21 pm
MSO
-
KEF
1 stop14h 29m
United Airlines
Thu 10/1510:00 am
KEF
-
MSO
2 stops41h 32m
United Airlines
Deal found 7/30$796
This Delta deal was found by Cheapflights users on 7/31. 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.
Wed 9/305:30 am
MSO
-
KEF
2 stops19h 30m
Delta
Thu 10/1511:25 am
KEF
-
MSO
2 stops19h 06m
Delta
Deal found 7/31$816
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:21 pm
MSO
-
KEF
2 stops37h 34m
Multiple Airlines
Thu 10/2210:00 am
KEF
-
MSO
2 stops17h 32m
Multiple Airlines
Deal found 7/29$828
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 10/212:21 pm
MSO
-
KEF
1 stop14h 29m
United Airlines
Tue 10/610:00 am
KEF
-
MSO
2 stops36h 20m
United Airlines
Deal found 7/31$886
This oojo deal was found by Cheapflights users on 7/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:15 am
MSO
-
KEF
1 stop17h 00m
Icelandair
Mon 9/74:50 pm
KEF
-
MSO
1 stop12h 11m
Icelandair
Deal found 7/31$899

Find flight deals from Missoula to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) 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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$796
(United Airlines)

One-way from

$465
(United Airlines)
Provider with most accurate pricing for Missoula Johnson-Bell Field-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Reykjavik Keflavik Intl flights.
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From Missoula Johnson-Bell Field to Reykjavik Keflavik Intl
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One-way flight from Missoula Johnson-Bell Field to Reykjavik Keflavik Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula 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 1, 2026.
Use the filters below to find and compare flights from Missoula to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Wed 9/30

12:21 pm-8:50 am

1 stop14h 29m

Reykjavik Keflavik Intl

Thu 10/15

10:00 am-9:32 pm

2 stops41h 32m

$796
Quickest round-trip

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Wed 9/30

5:30 am-7:00 am

2 stops19h 30m

Reykjavik Keflavik Intl

Thu 10/15

11:25 am-12:31 am

2 stops19h 06m

$816
Cheapest one-way
Quickest one-way

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Wed 9/16

12:25 pm-8:50 am

1 stop14h 25m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Missoula-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Missoula-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Missoula-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 Missoula to Keflavik Intl

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

    Missoula Johnson-Bell Field (MSO) is the airport you will fly out of if you book a flight from Missoula to Reykjavik Keflavik Intl. You should not have trouble finding flights to Reykjavik Keflavik Intl from Johnson-Bell Field; the airport handles an average of 0 outbound flights to Reykjavik Keflavik Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Missoula airport to Reykjavik Keflavik Intl. It is only a 5.5 mi journey to Johnson-Bell Field (MSO) from Missoula’s city center.

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

    Departing from Missoula to Reykjavik Keflavik Intl Airport will take you 14h 29m. Airlines will cover a distance of 3422 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missoula 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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