$337+ Cheap flights from Boston (BOS) 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KEF
Nov 13 — Nov 201
Round-trip
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 Saturday or Friday and return on a Tuesday
Cheap flight deals from Boston to Keflavik Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to Keflavik IntlExplore 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 14, 2026.
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 14, 2026.
This Ticket deal was found by Cheapflights users on 10/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:40 pm -
Nonstop5h 10m
Tue 11/35:00 pm -
Nonstop5h 50m
Deal found 10/10![Icelandair logo]()
$388
This eDestinos deal was found by Cheapflights users on 10/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:50 pm -
Nonstop5h 15m
Wed 10/217:55 pm -
Nonstop5h 50m
Deal found 10/11![Icelandair logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 10/10. 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.
Tue 11/177:50 pm -
Nonstop5h 15m
Tue 11/245:00 pm -
Nonstop5h 50m
Deal found 10/10![Icelandair logo]()
$412
This Mytrip deal was found by Cheapflights users on 10/13. 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.
Tue 12/87:50 pm -
Nonstop5h 15m
Tue 12/155:00 pm -
Nonstop5h 50m
Deal found 10/13![Icelandair logo]()
$424
This SmartFares deal was found by Cheapflights users on 10/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:50 pm -
Nonstop5h 15m
Wed 12/165:00 pm -
Nonstop5h 50m
Deal found 10/10![Icelandair logo]()
$426
This Booking.com deal was found by Cheapflights users on 10/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:50 pm -
Nonstop5h 15m
Tue 12/85:00 pm -
Nonstop5h 50m
Deal found 10/10![Icelandair logo]()
$429
This oojo deal was found by Cheapflights users on 10/13. 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.
Fri 11/277:50 pm -
Nonstop5h 15m
Wed 12/25:00 pm -
Nonstop5h 50m
Deal found 10/13![Icelandair logo]()
$430
Best flights from Boston to Keflavik IntlDiscover carefully curated flight deals from Boston to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
Discover carefully curated flight deals from Boston to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 11/147:00 pm -
2 stops34h 00m
Sat 11/2112:00 pm -
1 stop16h 58m
Deal found 10/9![United Airlines logo]()
$501
This Scandinavian Airlines deal was found by Cheapflights users on 10/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/265:35 pm -
1 stop18h 45m
Mon 2/16:05 pm -
1 stop26h 50m
Deal found 10/10![Scandinavian Airlines logo]()
$578
This Icelandair deal was found by Cheapflights users on 10/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:50 pm -
Nonstop5h 15m
Sat 12/124:45 pm -
1 stop20h 13m
Deal found 10/11![Multiple Airlines logo]()
$632
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Sun 11/154:56 pm -
1 stop12h 04m
Sat 11/2112:00 pm -
2 stops28h 07m
Deal found 10/10![United Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 11/68:05 pm -
2 stops56h 55m
Sat 11/1412:00 pm -
2 stops24h 43m
Deal found 10/9![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Sat 12/127:33 pm -
2 stops33h 27m
Thu 12/1712:00 pm -
2 stops26h 17m
Deal found 10/12![United Airlines logo]()
$512
This Scandinavian Airlines deal was found by Cheapflights users on 10/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/295:35 pm -
1 stop12h 15m
Wed 12/911:35 am -
1 stop33h 10m
Deal found 10/13![Scandinavian Airlines logo]()
$645
This Scandinavian Airlines deal was found by Cheapflights users on 10/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:35 pm -
1 stop18h 45m
Sun 11/2212:25 pm -
2 stops32h 20m
Deal found 10/14![Scandinavian Airlines logo]()
$679
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Fri 11/135:30 am -
2 stops23h 30m
Mon 11/1612:00 pm -
2 stops24h 43m
Deal found 10/13![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Sun 11/15:30 am -
2 stops23h 30m
Thu 11/1212:00 pm -
2 stops26h 17m
Deal found 10/14![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Fri 11/135:30 am -
2 stops23h 30m
Thu 11/1912:00 pm -
1 stop14h 30m
Deal found 10/13![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 10/13. 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 11/125:30 am -
2 stops47h 30m
Thu 11/1912:00 pm -
1 stop14h 30m
Deal found 10/13![United Airlines logo]()
$582
Last-minute flights from Boston to Keflavik IntlDiscover last-minute flight deals from Boston to Keflavik Intl. Data last updated October 14, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Keflavik Intl. Data last updated October 14, 2026 and is based on user searches.
This Ticket deal was found by Cheapflights users on 10/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:40 pm -
Nonstop5h 10m
Tue 11/35:00 pm -
Nonstop5h 50m
Deal found 10/10![Icelandair logo]()
$388
This oojo deal was found by Cheapflights users on 10/12. 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 11/157:50 pm -
Nonstop5h 15m
Sat 11/215:00 pm -
Nonstop5h 50m
Deal found 10/12![Icelandair logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 10/10. 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.
Tue 11/177:50 pm -
Nonstop5h 15m
Tue 11/245:00 pm -
Nonstop5h 50m
Deal found 10/10![Icelandair logo]()
$412
This oojo deal was found by Cheapflights users on 10/13. 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.
Fri 11/277:50 pm -
Nonstop5h 15m
Wed 12/25:00 pm -
Nonstop5h 50m
Deal found 10/13![Icelandair logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Fri 11/277:50 pm -
Nonstop5h 15m
Thu 12/35:00 pm -
Nonstop5h 50m
Deal found 10/12![Icelandair logo]()
$438
This Justfly.com deal was found by Cheapflights users on 10/13. 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.
Sun 11/297:50 pm -
Nonstop5h 15m
Thu 12/105:00 pm -
Nonstop5h 50m
Deal found 10/13![Icelandair logo]()
$437
This Cheapflightsfares deal was found by Cheapflights users on 10/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:50 pm -
Nonstop5h 15m
Tue 12/85:00 pm -
Nonstop5h 50m
Deal found 10/10![Icelandair logo]()
$426
One-way flights from Boston to Keflavik IntlSearch for one-way flight options from Boston to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
Search for one-way flight options from Boston to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
This oojo deal was found by Cheapflights users on 10/10. 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.
Mon 10/1911:00 pm -
Nonstop5h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Icelandair logo]()
$337
This SmartFares deal was found by Cheapflights users on 10/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Icelandair logo]()
$342
This American Airlines deal was found by Cheapflights users on 10/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/106:00 am -
2 stops23h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![American Airlines logo]()
$344
This Expedia deal was found by Cheapflights users on 10/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/108:40 pm -
1 stop12h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Lufthansa logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
Thu 12/177:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Icelandair logo]()
$348
This Mytrip deal was found by Cheapflights users on 10/13. 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.
Wed 2/107:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Icelandair logo]()
$350
This Mytrip deal was found by Cheapflights users on 10/10. 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.
Thu 4/18:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Icelandair logo]()
$351
This Gotogate deal was found by Cheapflights users on 10/14. 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 11/187:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Icelandair logo]()
$352
This Booking.com deal was found by Cheapflights users on 10/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Icelandair logo]()
$354
This SmartFares deal was found by Cheapflights users on 10/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Icelandair logo]()
$355
This Cheapflightsfares deal was found by Cheapflights users on 10/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Icelandair logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
Mon 12/1410:10 pm -
2 stops32h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$363
Find 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 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $388 (Ticket) |
One-way from | $337 (oojo) |
Popular in | June |
Cheapest in | January |
Average price | $464 |
Good round-trip deal | $481 or less |
Good one-way deal | $279 or less |
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 7,457,451 searches. Data last updated October 14, 2026.
Use the filters below to find and compare flights from Boston to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sun 11/8
7:50 pm-6:05 am
Nonstop5h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$354
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Mon 12/7
7:50 pm-6:05 am
Nonstop5h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$370
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sun 11/15
6:00 pm-7:20 pm
3 stops20h 20m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$405
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Fri 10/23
9:20 pm-9:30 am
1 stop8h 10m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$431
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sun 11/8
6:00 pm-7:20 pm
3 stops20h 20m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$439
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sun 11/8
5:35 pm-10:50 am
1 stop12h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$458
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Fri 3/19
6:35 pm-5:20 pm
1 stop18h 45m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$458
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Wed 12/9
7:30 am-1:50 pm
1 stop25h 20m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$494
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sun 12/13
4:45 pm-10:00 am
1 stop12h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$501
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Wed 11/25
6:36 pm-10:00 am
1 stop10h 24m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$501
Showing 1-10 of 23 resultsSorted by cheapest first
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-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 Boston-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >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 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 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.
BOS-KEF
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?
The best time to book flights from Boston to Reykjavik Keflavik Intl Airport is 46 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, January is the cheapest month in which you can book a flight from Boston to Reykjavik Keflavik Intl Airport (average of $307). Flying from Boston to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $603). 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 14, 2026.
It’s optimal to fly from Boston to Reykjavik Keflavik Intl Airport in the morning. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight at noon.
The best insider tips for Boston to Reykjavik Keflavik Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Reykjavik Keflavik Intl Airport trip
Our travel experts
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 14, 2026.
Read reviews from past customers who have flown Virgin Atlantic,United Airlines, andAir Canada 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.
Entertainment
7.5
Food
6.9
Crew
8.1
Comfort
7.3
Overall
7.5
Boarding
7.7
Reviews
1 / 20
6.0
GoodPratap,Aug 2025
JFK - LHR
Entertainment
7.5
Food
6.9
Crew
8.1
Comfort
7.3
Overall
7.5
Boarding
7.7
Reviews
1 / 20
6.0
GoodPratap,Aug 2025
JFK - LHR
Entertainment
7.5
Food
6.9
Crew
8.1
Comfort
7.3
Overall
7.5
Boarding
7.7
Reviews
1 / 20
6.0
GoodPratap,Aug 2025
JFK - LHR
Entertainment
7.5
Food
6.9
Crew
8.1
Comfort
7.3
Overall
7.5
Boarding
7.7
Reviews
1 / 20
6.0
GoodPratap,Aug 2025
JFK - LHR
Entertainment
7.5
Food
6.9
Crew
8.1
Comfort
7.3
Overall
7.5
Boarding
7.7
Reviews
1 / 20
6.0
GoodPratap,Aug 2025
JFK - LHR
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.
Traveling to a place near Reykjavik Keflavik Intl Airport?
Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locationsKeflavik
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.
Alternative routes
Complete your trip
Flights by cabin class
Keflavik Intl flight routes
Other flight options
Other flights from Boston
Popular flights
Alternative routes for Boston to Keflavik Intl
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Keflavik Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Keflavik Intl by cabin class
Find flights from Boston to Keflavik Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Keflavik Intl
Explore flights to Keflavik Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
Boston and Keflavik Intl flights
Browse other Boston and Keflavik Intl flight options. Last updated on October 14, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boston to Keflavik Intl
Discover the top 4 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 7,457,451 searches. Data last updated October 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$166 | Average$501 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$299 | Average$518 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$441 | Average$481 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$443 | Average$459 | FlexibilityNo cancel fee | On-time69% |