HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$306+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KEF
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston 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.

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 Sunday and return on a Friday

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 October 28, 2025.

This CrystalTravel deal was found by Cheapflights users on 10/26. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Tue 12/95:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/26$320
This CrystalTravel deal was found by Cheapflights users on 10/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/211:35 amBOS - KEF
Nonstop5h 10mIcelandair
Thu 11/69:55 amKEF - BOS
Nonstop5h 40mIcelandair
Deal found 10/27$321
This CrystalTravel deal was found by Cheapflights users on 10/26. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Wed 11/195:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/26$329
This Flightnetwork deal was found by Cheapflights users on 10/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Sat 11/155:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/27$332
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Sat 12/135:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/26$335
This oojo deal was found by Cheapflights users on 10/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Fri 11/145:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/27$336
This FlightHub deal was found by Cheapflights users on 10/27. 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 12/27:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Thu 12/115:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/27$337
This CrystalTravel deal was found by Cheapflights users on 10/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:35 amBOS - KEF
Nonstop5h 10mIcelandair
Wed 11/195:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/27$339
This CrystalTravel deal was found by Cheapflights users on 10/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Sun 12/79:55 amKEF - BOS
Nonstop5h 40mIcelandair
Deal found 10/25$341
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Thu 11/69:55 amKEF - BOS
Nonstop5h 40mIcelandair
Deal found 10/26$344
This FlightHub deal was found by Cheapflights users on 10/24. 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 11/117:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Tue 11/185:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/24$347
This CrystalTravel deal was found by Cheapflights users on 10/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:50 pmBOS - KEF
Nonstop5h 15mIcelandair
Sun 12/145:00 pmKEF - BOS
Nonstop5h 50mIcelandair
Deal found 10/27$348

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 October 28, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$315
(Ovago)

One-way from

$306
(eDestinos)

Popular in

December

Cheapest in

January

Average price

$400

Good round-trip deal

$425 or less

Good one-way deal

$333 or less
Provider with most accurate pricing for Boston Logan Intl-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Reykjavik Keflavik Intl flights.
Search Deals
From Boston Logan Intl to Reykjavik Keflavik Intl
Search Deals
One-way flight from Boston Logan Intl to Reykjavik Keflavik Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Reykjavik Keflavik Intl.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Reykjavik Keflavik Intl.
Search Deals

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 October 28, 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

Tue 11/11

7:50 pm-6:05 am

Nonstop5h 15m

Reykjavik Keflavik Intl

Sat 11/15

5:00 pm-5:50 pm

Nonstop5h 50m

$349

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Tue 1/20

7:50 pm-6:05 am

Nonstop5h 15m

Reykjavik Keflavik Intl

Sat 1/24

5:00 pm-5:50 pm

Nonstop5h 50m

$349

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Wed 1/14

7:50 pm-6:05 am

Nonstop5h 15m

Reykjavik Keflavik Intl

Sun 1/18

5:00 pm-5:50 pm

Nonstop5h 50m

$369

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Mon 11/10

7:50 pm-6:05 am

Nonstop5h 15m

Reykjavik Keflavik Intl

Sun 11/16

9:55 am-10:35 am

Nonstop5h 40m

$369

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Tue 12/2

7:50 pm-6:05 am

Nonstop5h 15m

Reykjavik Keflavik Intl

Sun 12/7

9:55 am-10:35 am

Nonstop5h 40m

$369

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Thu 1/22

7:50 pm-6:05 am

Nonstop5h 15m

Reykjavik Keflavik Intl

Wed 1/28

5:00 pm-5:50 pm

Nonstop5h 50m

$369

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Sun 11/9

11:35 am-9:45 pm

Nonstop5h 10m

Reykjavik Keflavik Intl

Wed 11/12

5:00 pm-5:50 pm

Nonstop5h 50m

$399

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Wed 11/12

7:50 pm-6:05 am

Nonstop5h 15m

Reykjavik Keflavik Intl

Tue 11/18

5:00 pm-5:50 pm

Nonstop5h 50m

$409

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Tue 12/23

11:35 am-9:45 pm

Nonstop5h 10m

Reykjavik Keflavik Intl

Mon 12/29

5:00 pm-5:50 pm

Nonstop5h 50m

$489

BostonReykjavik

BOS - KEF

BOSKEF

Boston Logan Intl

Sun 1/25

7:30 am-10:55 am

1 stop22h 25m

Reykjavik Keflavik Intl

Fri 2/13

10:00 am-10:49 pm

2 stops17h 49m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
1
2
3

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Boston-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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.

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 October 24, 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 $216). Flying from Boston to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $360). 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 October 28, 2025.

It’s optimal to fly from Boston to Reykjavik Keflavik Intl Airport in the afternoon. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from Boston to Reykjavik Keflavik Intl Airport?

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

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 October 28, 2025.
Read reviews from past customers who have flown JetBlue, Icelandair, and PLAY from Boston to Reykjavik Keflavik Intl Airport. 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.
JetBlue
7.2
Good
2,907 reviews

Comfort

7.6

Crew

8.0

Food

6.7

Overall

7.2

Boarding

7.4

Entertainment

7.3

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
JetBlue
7.2
Good
2,907 reviews
JetBlue
7.2
Good
2,907 reviews

Comfort

7.6

Crew

8.0

Food

6.7

Overall

7.2

Boarding

7.4

Entertainment

7.3

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
Icelandair
7.1
Good
562 reviews
JetBlue
7.2
Good
2,907 reviews

Comfort

7.6

Crew

8.0

Food

6.7

Overall

7.2

Boarding

7.4

Entertainment

7.3

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
PLAY
7.0
Good
JetBlue
7.2
Good
2,907 reviews

Comfort

7.6

Crew

8.0

Food

6.7

Overall

7.2

Boarding

7.4

Entertainment

7.3

Reviews

1 / 20
10.0
Excellent

JACK,Sep 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.

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 is 1 flight from Logan Intl to Reykjavik Keflavik Intl per day from 4 different airlines.

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

    Icelandair can get you from Boston to Reykjavik Keflavik Intl Airport in just under 5h 15m. Your travel time will be generally consistent. The distance between Boston and Reykjavik Keflavik Intl Airport is about 2406 mi. Most flights are nonstop.

  • 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 $233 on this airline. Additional options worth looking into are Icelandair and WorldTicket, starting at $339 and $381 round-trip. PLAY is currently priced 43% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Boston to Reykjavik Keflavik Intl Airport?

    The top 3 most reliable airlines when flying from Boston to Reykjavik Keflavik Intl Airport are PLAY (100%), airBaltic (95%) and Icelandair (91%).

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

    Looking at all options, your cheapest flight can be booked for $194. While the most popular route (Boston Logan Intl - Reykjavik Keflavik Intl) can be booked for $273 on average, our data indicates $998 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 $216). Flying from Boston to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $360). 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 Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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.

Top 3 airlines flying from Boston to Keflavik Intl

Discover the top 3 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$233Average$291FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$339Average$462FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$682Average$702FlexibilityNo cancel feeOn-time62%

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.
Site
©2025 Cheapflights