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Keflavik Intl

$655+ Cheap flights from Billings (BIL) to Keflavik Intl (KEF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — KEF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Billings to Keflavik Intl

Cheapest flights from Billings to Keflavik Intl
Explore the most affordable flight options available from Billings to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This KLM deal was found by Cheapflights users on 1/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:18 pm
BIL
-
KEF
2 stops33h 12m
KLM
Wed 5/209:30 am
KEF
-
BIL
1 stop19h 07m
KLM
Deal found 1/27$655
This Delta deal was found by Cheapflights users on 1/26. 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 5/16:18 pm
BIL
-
KEF
2 stops57h 12m
Delta
Wed 5/208:50 am
KEF
-
BIL
2 stops19h 47m
Delta
Deal found 1/26$660
This Delta deal was found by Cheapflights users on 1/26. 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.
Thu 5/76:15 am
BIL
-
KEF
1 stop19h 25m
Delta
Wed 5/209:30 am
KEF
-
BIL
1 stop19h 07m
Delta
Deal found 1/26$700
This Delta deal was found by Cheapflights users on 1/26. 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 5/66:18 pm
BIL
-
KEF
2 stops30h 02m
Delta
Wed 5/209:30 am
KEF
-
BIL
1 stop19h 07m
Delta
Deal found 1/26$704
This Finnair deal was found by Cheapflights users on 1/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:07 am
BIL
-
KEF
2 stops28h 23m
Multiple Airlines
Wed 5/205:15 pm
KEF
-
BIL
2 stops35h 30m
Multiple Airlines
Deal found 1/27$720
This KLM deal was found by Cheapflights users on 1/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:15 am
BIL
-
KEF
1 stop19h 25m
Multiple Airlines
Sat 5/239:30 am
KEF
-
BIL
1 stop19h 07m
Multiple Airlines
Deal found 1/27$760
This Delta deal was found by Cheapflights users on 1/26. 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.
Mon 5/45:20 am
BIL
-
KEF
2 stops22h 10m
Delta
Wed 5/209:30 am
KEF
-
BIL
2 stops18h 57m
Delta
Deal found 1/26$791
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/52:30 pm
BIL
-
KEF
2 stops26h 55m
Lufthansa
Wed 5/2012:20 am
KEF
-
BIL
2 stops26h 49m
Lufthansa
Deal found 1/27$874
This United Airlines deal was found by Cheapflights users on 1/27. 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 5/195:51 pm
BIL
-
KEF
2 stops32h 39m
United Airlines
Mon 6/111:30 am
KEF
-
BIL
3 stops31h 43m
United Airlines
Deal found 1/27$896

Find flight deals from Billings to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$655
(KLM)
Provider with most accurate pricing for Billings Logan Intl-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Billings Logan Intl-Reykjavik Keflavik Intl flights.
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From Billings Logan Intl to Reykjavik Keflavik Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings 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 January 29, 2026.
Use the filters below to find and compare flights from Billings to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Billings

Fly to

Keflavik Intl

Route

Depart

Return

Price

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Tue 5/5

11:33 am-9:30 am

2 stops39h 57m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-10:37 pm

1 stop19h 07m

$655

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Sun 5/3

6:18 pm-9:30 am

2 stops33h 12m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-10:37 pm

1 stop19h 07m

$655

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Sat 5/2

6:18 pm-9:30 am

2 stops33h 12m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-10:37 pm

1 stop19h 07m

$660

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Fri 5/1

6:18 pm-9:30 am

2 stops57h 12m

Reykjavik Keflavik Intl

Wed 5/20

8:50 am-10:37 pm

2 stops19h 47m

$660

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Thu 5/7

6:15 am-7:40 am

1 stop19h 25m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-10:37 pm

1 stop19h 07m

$700

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Wed 5/6

6:18 pm-6:20 am

2 stops30h 02m

Reykjavik Keflavik Intl

Wed 5/20

8:50 am-10:37 pm

2 stops19h 47m

$704

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Thu 5/7

6:15 am-7:40 am

1 stop19h 25m

Reykjavik Keflavik Intl

Sat 5/23

9:30 am-10:37 pm

1 stop19h 07m

$760

BillingsReykjavik

BIL - KEF

BILKEF

Billings Logan Intl

Mon 5/4

5:20 am-9:30 am

2 stops22h 10m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-10:27 pm

2 stops18h 57m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

  • Most accurate provider: When it comes to deals on Billings-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 Billings-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-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 Billings-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 Billings to Keflavik Intl

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

    Billings Logan Intl (BIL) is the airport you will fly out of if you book a flight from Billings to Reykjavik Keflavik Intl. You should not have trouble finding flights to Reykjavik Keflavik Intl from Billings Logan Intl; 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 Billings airport to Reykjavik Keflavik Intl. It is only a 2.7 mi journey to Billings Logan Intl (BIL) from Billings’s city center.

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

    Airlines like KLM and Delta fly from Billings to Reykjavik Keflavik Intl Airport in about 33h 12m. The time it takes to get you to your destination can typically vary by up to 6h 45m. Billings and Reykjavik Keflavik Intl Airport are separated by a distance of 3331 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Billings 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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