HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$315+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — KEF
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missoula to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$777
(Delta)

One-way from

$315
(Kiwi.com)
Provider with most accurate pricing for Missoula Johnson-Bell Field-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Reykjavik Keflavik Intl flights.
Search Deals
From Missoula Johnson-Bell Field to Reykjavik Keflavik Intl
Search Deals
One-way flight from Missoula Johnson-Bell Field to Reykjavik Keflavik Intl
Search Deals

Find 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 April 29, 2025.

This Delta deal was found by Cheapflights users on 4/27. 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 10/116:10 pmMSO - KEF
2 stops30h 10mDelta
Sun 10/198:45 amKEF - MSO
2 stops21h 46mDelta
Deal found 4/27$777
This United Airlines deal was found by Cheapflights users on 4/27. 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 9/1612:30 pmMSO - KEF
1 stop14h 00mUnited Airlines
Tue 9/2310:00 amKEF - MSO
2 stops36h 09mUnited Airlines
Deal found 4/27$793
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 7/2611:43 amMSO - KEF
1 stop12h 52mMultiple Airlines
Sat 8/29:35 amKEF - MSO
2 stops31h 59mMultiple Airlines
Deal found 4/27$952
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:35 amMSO - KEF
1 stop20h 50mAlaska Airlines
Tue 9/234:50 pmKEF - MSO
1 stop13h 09mAlaska Airlines
Deal found 4/27$1,024
This Air France deal was found by Cheapflights users on 4/27. 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.
Fri 7/255:54 amMSO - KEF
2 stops21h 36mAir France
Sat 8/29:30 amKEF - MSO
1 stop20h 13mAir France
Deal found 4/27$1,034

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 April 29, 2025.
Use the filters below to find and compare flights from Missoula to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Missoula

Fly to

Keflavik Intl

Route

Depart

Return

Price

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Sat 10/11

6:10 pm-6:20 am

2 stops30h 10m

Reykjavik Keflavik Intl

Sun 10/19

8:45 am-12:31 am

2 stops21h 46m

$777

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Tue 9/16

12:30 pm-8:30 am

1 stop14h 00m

Reykjavik Keflavik Intl

Tue 9/23

10:00 am-4:09 pm

2 stops36h 09m

$793

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Sat 7/26

11:43 am-6:35 am

1 stop12h 52m

Reykjavik Keflavik Intl

Sat 8/2

9:35 am-11:34 am

2 stops31h 59m

$952

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Tue 9/16

6:35 am-9:25 am

1 stop20h 50m

Reykjavik Keflavik Intl

Tue 9/23

4:50 pm-11:59 pm

1 stop13h 09m

$1,024

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Fri 7/25

5:54 am-9:30 am

2 stops21h 36m

Reykjavik Keflavik Intl

Sat 8/2

9:30 am-11:43 pm

1 stop20h 13m

$1,034

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Mon 7/21

4:15 pm-8:15 am

2 stops34h 00m

$315

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Mon 7/21

12:40 pm-8:30 am

1 stop13h 50m

$625

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Fri 6/20

5:45 am-5:55 am

1 stop18h 10m

$758

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Missoula 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 Missoula to Keflavik Intl in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 Missoula-Reykjavik Keflavik Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Missoula-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

Cheapflights Insights

Everything you need to know about your flight from Missoula 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 April 29, 2025.
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Air France
7.4
Good
1,444 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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.

  • What is the cheapest month to book a flight from Missoula to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Missoula to Reykjavik Keflavik Intl Airport (average of $328). Flying from Missoula to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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 Missoula?

Book flights to Missoula if you plan to visit one of these locations
Keflavik

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missoula to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Keflavik Intl flights
Kalispell to Keflavik Intl flights
Billings to Keflavik Intl flights
Great Falls to Keflavik Intl flights
Helena to Keflavik Intl flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.