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Keflavik Intl

$170+ Cheap flights from Boston (BOS) 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KEF
May 24 — May 311
Sat 5/24
Sat 5/31
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Boston Logan Intl to Reykjavik Keflavik Intl are usually found in January or March, booked 47 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Boston to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 May 19, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$329
(Justfly.com)

One-way from

$172
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$410

Good round-trip deal

$406 or less

Good one-way deal

$254 or less
Provider with most accurate pricing for Boston Logan Intl-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Reykjavik Keflavik Intl flights.
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From Boston Logan Intl to Reykjavik Keflavik Intl
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One-way flight from Boston Logan Intl to Reykjavik Keflavik Intl
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from Boston Logan Intl to Reykjavik Keflavik Intl.
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Find flight deals from Boston to Keflavik Intl

Cheapest flights from Boston to Keflavik Intl
Explore the most affordable flight options available from Boston to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 19, 2025.

This Justfly.com deal was found by Cheapflights users on 5/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/117:15 pmBOS - KEF
Nonstop5h 30mPLAY
Wed 6/183:45 pmKEF - BOS
Nonstop6h 05mPLAY
Deal found 5/18$329
This FlightHub deal was found by Cheapflights users on 5/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:35 pmBOS - KEF
Nonstop5h 10mIcelandair
Mon 10/138:10 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 5/19$347
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/304:40 pmBOS - KEF
1 stop9h 40mDelta
Fri 10/178:45 amKEF - BOS
1 stop18h 49mDelta
Deal found 5/19$362
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Thu 8/1410:40 amBOS - KEF
1 stop17h 35mUnited Airlines
Sun 8/249:50 amKEF - BOS
2 stops32h 23mUnited Airlines
Deal found 5/19$386
This Gotogate deal was found by Cheapflights users on 5/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/139:40 pmBOS - KEF
1 stop30h 35mMultiple Airlines
Sun 8/249:30 amKEF - BOS
1 stop28h 00mMultiple Airlines
Deal found 5/18$396
This Air Canada deal was found by Cheapflights users on 5/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1810:20 amBOS - KEF
2 stops17h 55mAir Canada
Tue 8/269:50 amKEF - BOS
1 stop12h 23mAir Canada
Deal found 5/19$399
This KLM deal was found by Cheapflights users on 5/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/253:17 pmBOS - KEF
1 stop11h 43mKLM
Fri 6/611:25 amKEF - BOS
1 stop11h 40mKLM
Deal found 5/18$401
This AirNGo deal was found by Cheapflights users on 5/19. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/94:00 pmBOS - KEF
1 stop13h 30mVirgin Atlantic
Tue 6/1711:25 amKEF - BOS
1 stop13h 01mVirgin Atlantic
Deal found 5/19$428

Cheapflights Fare Finder

Customize your flight search to find flights from Boston 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 May 19, 2025.
Use the filters below to find and compare flights from Boston to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Boston

Fly to

Keflavik Intl

Route

Depart

Return

Price

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Wed 6/11

7:15 pm-4:45 am

Nonstop5h 30m

Reykjavik Keflavik Intl

Wed 6/18

3:45 pm-5:50 pm

Nonstop6h 05m

$329

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Wed 10/1

11:35 pm-8:45 am

Nonstop5h 10m

Reykjavik Keflavik Intl

Mon 10/13

8:10 pm-10:00 pm

Nonstop5h 50m

$347

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Tue 9/30

5:00 pm-9:30 am

1 stop12h 30m

Reykjavik Keflavik Intl

Sun 10/19

11:25 am-10:29 pm

1 stop15h 04m

$362

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Thu 9/11

9:10 am-6:20 am

1 stop17h 10m

Reykjavik Keflavik Intl

Tue 9/16

11:25 am-10:29 pm

1 stop15h 04m

$374

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Thu 8/14

10:40 am-8:15 am

1 stop17h 35m

Reykjavik Keflavik Intl

Sun 8/24

9:50 am-2:13 pm

2 stops32h 23m

$386

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Wed 8/13

9:40 pm-8:15 am

1 stop30h 35m

Reykjavik Keflavik Intl

Sun 8/24

9:30 am-9:30 am

1 stop28h 00m

$396

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Mon 8/18

10:20 am-8:15 am

2 stops17h 55m

Reykjavik Keflavik Intl

Tue 8/26

9:50 am-6:13 pm

1 stop12h 23m

$399

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Mon 6/9

4:00 pm-9:30 am

1 stop13h 30m

Reykjavik Keflavik Intl

Tue 6/17

11:25 am-8:26 pm

1 stop13h 01m

$428

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Sat 10/4

5:10 pm-11:20 pm

1 stop26h 10m

Reykjavik Keflavik Intl

Sun 10/19

12:10 am-5:58 pm

2 stops21h 48m

$493

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Mon 10/6

7:15 pm-4:45 am

Nonstop5h 30m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

Showing 1-10 of 20 results
1
2

Compare providers for flights from Boston 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 Boston to Keflavik Intl in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
GotogatePrice Accuracy3 starsTrust Score*2 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 Boston-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 Boston-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-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 Boston-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Boston to Reykjavik Keflavik Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Reykjavik Keflavik Intl Airport trip
Airlines
Icelandair

Consider Icelandair’s Stopover program for a 3-7 day Iceland visit at no extra charge.


Saga Premium class includes noise-cancelling headphones and generous legroom for a comfortable journey.

Read more about Icelandairby Bill Fink
PLAY

PLAY’s Basic Plus fare includes priority boarding and one carry-on, ideal for light packers.


PLAY offers a free stopover in Reykjavik for up to 10 days on transatlantic flights.

Read more about PLAYby Victoria M. Walker
Our travel experts
Bill Fink

Bill Fink

Expert on Icelandair

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Victoria M. Walker

Victoria M. Walker

Expert on PLAY

Victoria M. Walker

Victoria M. Walker

Victoria M. Walker is an award-winning travel reporter who writes the “Carrying On” newsletter. Victoria writes about airlines and hotels and fell in love with travel after her first flight in 2014. She was raised in Virginia and is based in Brooklyn, NY. She is interested in finding the best pizza and coffee in every city she visits.

Read more

Best time to book a flight from Boston to Keflavik Intl

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

How far ahead should I book a flight from Boston to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Keflavik Intl. Price data was last updated on May 16, 2025.

The best time to book flights from Boston to Reykjavik Keflavik Intl Airport is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Boston to Reykjavik Keflavik Intl Airport (average of $328). Flying from Boston to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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.

What is the cheapest time of day to fly from BOS to KEF?

Find hourly flight availability from Boston 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 May 19, 2025.

It’s optimal to fly from Boston to Reykjavik Keflavik Intl Airport at noon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Boston to Reykjavik Keflavik Intl Airport

Explore weekly flight availability from Boston to Keflavik Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 19, 2025.

The most flights from BOS to KEF are scheduled on a Wednesday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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 May 19, 2025.
Read through reviews of airlines operating flights from Boston to Reykjavik, such as Delta, KLM and Austrian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,951 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,951 reviews
Delta
8.0
Very good
7,951 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,344 reviews
Delta
8.0
Very good
7,951 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
792 reviews
Delta
8.0
Very good
7,951 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,281 reviews
Delta
8.0
Very good
7,951 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,598 reviews
Delta
8.0
Very good
7,951 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boston 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 Boston to Reykjavik Keflavik Intl?

    If you book a flight to Reykjavik Keflavik Intl from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 4 flights from Logan Intl to Reykjavik Keflavik Intl per day from 6 different airlines.

  • What are the cheapest airlines flying from Boston to Reykjavik Keflavik Intl Airport round-trip?

    Our cheapest airline available from Boston to Reykjavik Keflavik Intl Airport is PLAY. Our recent data shows that you can find tickets from as low as $329 on this airline. Additional options worth looking into are Icelandair and KLM, starting at $347 and $362 round-trip. PLAY is currently priced 19% below the average price you’ll pay for this route.

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

    For one-way options, check prices for PLAY. According to our data, you can fly for as low as $172. Users have also found prices from $256 and $323 on WorldTicket and Lufthansa, respectively.

  • What are the cheapest flights from Boston to Reykjavik Keflavik Intl Airport?

    Looking at all options, your cheapest flight can be booked for $175. While the most popular route (Boston Logan Intl - Reykjavik Keflavik Intl) can be booked for $265 on average our data indicates $1,367 when flying from Boston to Reykjavik Keflavik Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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 Boston to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Boston to Reykjavik Keflavik Intl Airport (average of $328). Flying from Boston to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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

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Alternative routes for Boston to Keflavik Intl

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Top 5 airlines flying from Boston to Keflavik Intl

Discover the top 5 airlines that operate flights from Boston to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$232Average$296FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$354Average$463FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$387Average$415FlexibilityNo cancel feeOn-time67%
DeltaCheapest$397Average$408FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$681Average$692FlexibilityNo cancel feeOn-time62%

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