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Cheap flights from Montana to Reykjavik from $732

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Reykjavik departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 6:15 am
BIL
-
KEF
16h 15m1 stop
Multiple Airlines Logo
5:00 pm - 11:36 pm
KEF
-
BIL
13h 36m1 stop
$732Multiple Airlines
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
6:25 am - 6:15 am
FCA
-
KEF
16h 50m1 stop
Multiple Airlines Logo
5:00 pm - 11:58 pm
KEF
-
FCA
13h 58m1 stop
$769Multiple Airlines
Mon, Jan 26 - Sat, Jan 31
Multiple Airlines Logo
1:46 pm - 6:15 am
BZN
-
KEF
33h 29m2 stops
Multiple Airlines Logo
5:00 pm - 11:56 pm
KEF
-
BZN
13h 56m1 stop
$821Multiple Airlines
Mon, Jan 19 - Mon, Jan 26
Multiple Airlines Logo
7:20 am - 6:15 am
BZN
-
KEF
15h 55m1 stop
Multiple Airlines Logo
5:00 pm - 11:56 pm
KEF
-
BZN
13h 56m1 stop
$852Multiple Airlines
Mon, Jan 19 - Mon, Jan 26
United Airlines Logo
2:40 pm - 8:30 am
BIL
-
KEF
35h 50m2 stops
United Airlines Logo
12:00 pm - 10:41 pm
KEF
-
BIL
16h 41m2 stops
$894United Airlines
Tue, May 19 - Mon, Jun 1
United Airlines Logo
2:40 pm - 8:30 am
BIL
-
KEF
35h 50m2 stops
United Airlines Logo
12:00 pm - 11:21 am
KEF
-
BIL
29h 21m1 stop
$904United Airlines
Tue, May 19 - Mon, Jun 1
Alaska Airlines Logo
1:59 pm - 9:50 am
MSO
-
KEF
13h 51m1 stop
Alaska Airlines Logo
12:45 pm - 3:23 pm
KEF
-
MSO
32h 38m1 stop
$925Alaska Airlines
Fri, Jun 5 - Fri, Jun 12
Alaska Airlines Logo
6:23 am - 6:15 am
MSO
-
KEF
16h 52m1 stop
Alaska Airlines Logo
5:00 pm - 12:23 pm
KEF
-
MSO
26h 23m1 stop
$1,056Alaska Airlines
Mon, Jan 19 - Fri, Jan 30
British Airways Logo
4:20 pm - 10:50 am
MSO
-
KEF
35h 30m2 stops
British Airways Logo
11:50 am - 11:55 pm
KEF
-
MSO
43h 05m2 stops
$2,075British Airways
Mon, Jan 19 - Fri, Jan 30
British Airways Logo
7:00 am - 10:45 am
BIL
-
KEF
44h 45m2 stops
British Airways Logo
11:50 am - 11:36 pm
KEF
-
BIL
42h 46m2 stops
$2,228British Airways
Tue, Jan 20 - Tue, Jan 27

United Airlines flights from Montana to Reykjavik Keflavik Intl Airport

Our best United Airlines deals on Montana to Reykjavik Keflavik Intl Airport flight tickets
United Airlines
May 19
BIL2:40 pmBillings Logan Intl
35h 50m
2 stops
KEF8:30 amReykjavik Keflavik Intl
Jun 1
KEF12:00 pmReykjavik Keflavik Intl
16h 41m
2 stops
BIL10:41 pmBillings Logan Intl
$894
Find similar
United Airlines
May 19
BIL2:40 pmBillings Logan Intl
35h 50m
2 stops
KEF8:30 amReykjavik Keflavik Intl
Jun 1
KEF12:00 pmReykjavik Keflavik Intl
29h 21m
1 stop
BIL11:21 amBillings Logan Intl
$904
Find similar
United Airlines
Jun 5
MSO6:15 amMissoula Johnson-Bell Field
20h 30m
2 stops
KEF8:45 amReykjavik Keflavik Intl
Jun 12
KEF9:15 amReykjavik Keflavik Intl
36h 55m
2 stops
MSO4:10 pmMissoula Johnson-Bell Field
$981
Find similar

Alaska Airlines flights from Montana to Reykjavik Keflavik Intl Airport

Our best Alaska Airlines deals on Montana to Reykjavik Keflavik Intl Airport flight tickets
Alaska Airlines
Jun 5
MSO1:59 pmMissoula Johnson-Bell Field
13h 51m
1 stop
KEF9:50 amReykjavik Keflavik Intl
Jun 12
KEF12:45 pmReykjavik Keflavik Intl
32h 38m
1 stop
MSO3:23 pmMissoula Johnson-Bell Field
$925
Find similar
Alaska Airlines
Jan 19
MSO6:23 amMissoula Johnson-Bell Field
16h 52m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Jan 30
KEF5:00 pmReykjavik Keflavik Intl
26h 23m
1 stop
MSO12:23 pmMissoula Johnson-Bell Field
$1,056
Find similar
Alaska Airlines
Jan 19
MSO6:23 amMissoula Johnson-Bell Field
16h 52m
1 stop
KEF6:15 amReykjavik Keflavik Intl
Jan 30
KEF5:00 pmReykjavik Keflavik Intl
27h 23m
2 stops
MSO1:23 pmMissoula Johnson-Bell Field
$1,134
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Reykjavik Keflavik Intl Airport 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, momondo users made 832,500 searches. Data last updated December 21, 2025.
Use the filters below to find and compare flights from Montana to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Tue 1/20

7:00 am-6:15 am

1 stop16h 15m

Reykjavik Keflavik Intl

Tue 1/27

5:00 pm-11:36 pm

1 stop13h 36m

$732

KalispellReykjavik

FCA - KEF

FCAKEF

Kalispell Glacier Park

Mon 1/26

6:25 am-6:15 am

1 stop16h 50m

Reykjavik Keflavik Intl

Sat 1/31

5:00 pm-11:58 pm

1 stop13h 58m

$769

BozemanReykjavik

BZN - KEF

BZNKEF

Bozeman Gallatin Field

Mon 1/19

1:46 pm-6:15 am

2 stops33h 29m

Reykjavik Keflavik Intl

Mon 1/26

5:00 pm-11:56 pm

1 stop13h 56m

$821

BozemanReykjavik

BZN - KEF

BZNKEF

Bozeman Gallatin Field

Mon 1/19

7:20 am-6:15 am

1 stop15h 55m

Reykjavik Keflavik Intl

Mon 1/26

5:00 pm-11:56 pm

1 stop13h 56m

$852

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Tue 5/19

2:40 pm-8:30 am

2 stops35h 50m

Reykjavik Keflavik Intl

Mon 6/1

12:00 pm-10:41 pm

2 stops16h 41m

$894

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Tue 5/19

2:40 pm-8:30 am

2 stops35h 50m

Reykjavik Keflavik Intl

Mon 6/1

12:00 pm-11:21 am

1 stop29h 21m

$904

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Fri 6/5

1:59 pm-9:50 am

1 stop13h 51m

Reykjavik Keflavik Intl

Fri 6/12

12:45 pm-3:23 pm

1 stop32h 38m

$925

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Mon 1/19

6:23 am-6:15 am

1 stop16h 52m

Reykjavik Keflavik Intl

Fri 1/30

5:00 pm-12:23 pm

1 stop26h 23m

$1,056

MissoulaReykjavik

MSO - KEF

MSOKEF

Missoula Johnson-Bell Field

Mon 1/19

4:20 pm-10:50 am

2 stops35h 30m

Reykjavik Keflavik Intl

Fri 1/30

11:50 am-11:55 pm

2 stops43h 05m

$2,075

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Tue 1/20

7:00 am-10:45 am

2 stops44h 45m

Reykjavik Keflavik Intl

Tue 1/27

11:50 am-11:36 pm

2 stops42h 46m

$2,228

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Reykjavik from

How to get the cheapest flight ticket from Montana to Reykjavik Keflavik Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest day to depart from Montana to Reykjavik Keflavik Intl Airport is on a Thursday when prices can be found for as low as $842. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Friday, with ticket prices averaging around $910.

What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the afternoon when flights can be purchased for as low as $786. Flights in the morning are often more expensive with an average ticket price of $864.

Cheap Montana to Reykjavik Keflavik Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Reykjavik Keflavik Intl Airport

Fastest flight time

15h 55m

Direct flights

None
The fastest flight from Montana to Reykjavik Keflavik Intl Airport takes 15h 55m
There are no direct flights from Montana to Reykjavik Keflavik Intl Airport. There are no popular flight routes from Montana to Reykjavik Keflavik Intl Airport.
Search flight deals

  • When did momondo last update prices for flights from Montana to Reykjavik Keflavik Intl Airport?

    Prices for flights from Montana to Reykjavik Keflavik Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Montana to Reykjavik Keflavik Intl Airport?

  • How old do you have to be to fly from Montana to Reykjavik Keflavik Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montana to Reykjavik Keflavik Intl Airport.

  • What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?

    The travel and health documents required for your trip to Reykjavik Keflavik Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Reykjavik Keflavik Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Montana to Reykjavik Keflavik Intl Airport

Compare and see reviews for airlines that fly from Montana to Reykjavik Keflavik Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $949Free CancellationRating
8.0
11,500 reviews
Search Alaska Airlines flights

Traveling to a place near Reykjavik?

Book flights to Reykjavik if you plan to visit one of these locations
Keflavik
Selfoss
Hella
Hveragerdi
Borgarnes
Grindavik
Kopavogur

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Reykjavik?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montana to Reykjavik. momondo saves you time and could save you money on your trip.

Can I find flights from Montana to Reykjavik with flexible booking policies on momondo?

Flights from Montana to Reykjavik with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Montana to Reykjavik?

momondo helps you find the best flight between Montana and Reykjavik by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Montana to Reykjavik right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Montana to Reykjavik flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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