$327+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — KEF
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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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 Wednesday or Saturday and return on a Monday
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 September 7, 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 September 7, 2026.
This FlightHub deal was found by Cheapflights users on 9/2. 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 12/17:50 pm -
Nonstop5h 15m
Sun 12/65:00 pm -
Nonstop5h 50m
Deal found 9/2![Icelandair logo]()
$437
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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.
Thu 10/158:50 pm -
Nonstop5h 15m
Tue 10/205:10 pm -
Nonstop5h 40m
Deal found 9/4![Icelandair logo]()
$438
This Gotogate deal was found by Cheapflights users on 9/4. 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.
Fri 10/28:50 pm -
Nonstop5h 15m
Fri 10/95:10 pm -
Nonstop5h 40m
Deal found 9/4![Icelandair logo]()
$440
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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.
Fri 10/28:50 pm -
Nonstop5h 15m
Wed 10/77:55 pm -
Nonstop5h 50m
Deal found 9/3![Icelandair logo]()
$441
This Cheapflightsfares deal was found by Cheapflights users on 9/7. 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.
Tue 9/298:50 pm -
Nonstop5h 15m
Wed 10/75:10 pm -
Nonstop5h 40m
Deal found 9/7![Icelandair logo]()
$442
This Air France deal was found by Cheapflights users on 9/6. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:20 pm -
1 stop8h 10m
Mon 9/2111:25 am -
1 stop15h 45m
Deal found 9/6![Air France logo]()
$445
This Justfly.com deal was found by Cheapflights users on 9/4. 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.
Fri 10/167:05 pm -
1 stop9h 40m
Sat 10/2410:00 am -
1 stop10h 05m
Deal found 9/4![Air Canada logo]()
$446
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Wed 12/27:50 pm -
Nonstop5h 15m
Thu 12/105:00 pm -
Nonstop5h 50m
Deal found 9/2![Icelandair logo]()
$448
This Icelandair deal was found by Cheapflights users on 9/2. 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.
Mon 11/307:50 pm -
Nonstop5h 15m
Tue 12/85:00 pm -
Nonstop5h 50m
Deal found 9/2![Icelandair logo]()
$449
This Flysmarter deal was found by Cheapflights users on 9/3. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:50 pm -
Nonstop5h 15m
Wed 9/167:55 pm -
Nonstop5h 50m
Deal found 9/3![Icelandair logo]()
$450
This KLM deal was found by Cheapflights users on 9/6. 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.
Sat 9/196:35 pm -
1 stop32h 25m
Tue 9/299:30 am -
1 stop11h 55m
Deal found 9/6![KLM logo]()
$451
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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 10/148:50 pm -
Nonstop5h 15m
Sun 10/185:10 pm -
Nonstop5h 40m
Deal found 9/3![Icelandair logo]()
$452
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 September 7, 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 September 7, 2026.
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/47:01 am -
1 stop21h 49m
Thu 10/810:00 am -
2 stops35h 42m
Deal found 9/5![United Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/2210:40 am -
1 stop17h 15m
Thu 10/2912:00 pm -
1 stop15h 29m
Deal found 9/7![United Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/148:00 pm -
2 stops33h 00m
Sat 11/2112:00 pm -
2 stops24h 43m
Deal found 9/2![United Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 9/4. 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 12/47:15 am -
2 stops21h 45m
Sat 12/1212:00 pm -
1 stop10h 58m
Deal found 9/4![United Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 9/5. 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 12/38:25 pm -
1 stop32h 35m
Mon 12/712:00 pm -
1 stop12h 38m
Deal found 9/5![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Mon 11/308:05 pm -
2 stops56h 55m
Sat 12/512:00 pm -
2 stops24h 50m
Deal found 9/2![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/57:20 am -
2 stops45h 40m
Thu 11/1212:00 pm -
2 stops30h 31m
Deal found 9/2![United Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 9/236:00 am -
1 stop22h 45m
Wed 10/79:15 am -
2 stops28h 29m
Deal found 9/6![United Airlines logo]()
$576
Last-minute flights from Boston to Keflavik IntlDiscover last-minute flight deals from Boston to Keflavik Intl. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Keflavik Intl. Data last updated September 7, 2026 and is based on user searches.
This Flysmarter deal was found by Cheapflights users on 9/3. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:50 pm -
Nonstop5h 15m
Wed 9/167:55 pm -
Nonstop5h 50m
Deal found 9/3![Icelandair logo]()
$450
This Air France deal was found by Cheapflights users on 9/6. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:20 pm -
1 stop8h 10m
Mon 9/2111:25 am -
1 stop15h 45m
Deal found 9/6![Air France logo]()
$445
This KLM deal was found by Cheapflights users on 9/6. 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.
Sat 9/196:35 pm -
1 stop32h 25m
Tue 9/299:30 am -
1 stop11h 55m
Deal found 9/6![KLM logo]()
$451
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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 9/2311:00 pm -
Nonstop5h 10m
Wed 9/305:10 pm -
Nonstop5h 40m
Deal found 9/3![Icelandair logo]()
$454
This Cheapflightsfares deal was found by Cheapflights users on 9/7. 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.
Tue 9/298:50 pm -
Nonstop5h 15m
Wed 10/75:10 pm -
Nonstop5h 40m
Deal found 9/7![Icelandair logo]()
$442
This FlightHub deal was found by Cheapflights users on 9/7. 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 9/298:50 pm -
Nonstop5h 15m
Thu 10/85:10 pm -
Nonstop5h 40m
Deal found 9/7![Icelandair logo]()
$453
This Gotogate deal was found by Cheapflights users on 9/4. 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.
Fri 10/28:50 pm -
Nonstop5h 15m
Fri 10/95:10 pm -
Nonstop5h 40m
Deal found 9/4![Icelandair logo]()
$440
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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.
Fri 10/28:50 pm -
Nonstop5h 15m
Wed 10/77:55 pm -
Nonstop5h 50m
Deal found 9/3![Icelandair logo]()
$441
This FlightHub deal was found by Cheapflights users on 9/5. 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 10/138:50 pm -
Nonstop5h 15m
Tue 10/205:10 pm -
Nonstop5h 40m
Deal found 9/5![Icelandair logo]()
$449
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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 10/148:50 pm -
Nonstop5h 15m
Sun 10/185:10 pm -
Nonstop5h 40m
Deal found 9/3![Icelandair logo]()
$452
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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.
Thu 10/158:50 pm -
Nonstop5h 15m
Tue 10/205:10 pm -
Nonstop5h 40m
Deal found 9/4![Icelandair logo]()
$438
This Justfly.com deal was found by Cheapflights users on 9/4. 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.
Fri 10/167:05 pm -
1 stop9h 40m
Sat 10/2410:00 am -
1 stop10h 05m
Deal found 9/4![Air Canada logo]()
$446
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 September 7, 2026.
Search for one-way flight options from Boston to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This oojo deal was found by Cheapflights users on 9/7. 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 10/1611:00 pm -
Nonstop5h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$327
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Sun 10/118:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Icelandair logo]()
$329
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Sun 10/1811:00 pm -
Nonstop5h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Icelandair logo]()
$335
This Gotogate deal was found by Cheapflights users on 9/6. 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.
Fri 10/308:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Icelandair logo]()
$336
This oojo deal was found by Cheapflights users on 9/4. 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 9/1311:00 pm -
Nonstop5h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Icelandair logo]()
$338
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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.
Sat 11/77:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Icelandair logo]()
$349
This Mytrip deal was found by Cheapflights users on 9/4. 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.
Fri 9/258:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Icelandair logo]()
$353
This Mytrip deal was found by Cheapflights users on 9/7. 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.
Fri 10/28:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$354
This Mytrip deal was found by Cheapflights users on 9/5. 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 1/197:50 pm -
Nonstop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Icelandair logo]()
$355
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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 9/2![Icelandair logo]()
$356
This Finnair deal was found by Cheapflights users on 9/5. 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 12/75:30 pm -
2 stops18h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Finnair logo]()
$358
This Expedia deal was found by Cheapflights users on 9/5. 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.
Tue 1/197:02 pm -
2 stops33h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Finnair logo]()
$359
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $437 (FlightHub) |
One-way from | $329 (Mytrip) |
Popular in | June |
Cheapest in | January |
Average price | $472 |
Good round-trip deal | $519 or less |
Good one-way deal | $290 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 September 7, 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
Sat 2/6
7:50 pm-6:05 am
Nonstop5h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$349
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Wed 11/25
7:50 pm-6:05 am
Nonstop5h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$356
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sat 2/6
7:15 pm-5:00 pm
1 stop16h 45m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$404
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Fri 10/30
10:50 pm-7:20 pm
2 stops40h 30m
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
Sat 2/6
7:02 pm-9:15 am
2 stops33h 13m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$418
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sun 12/27
5:45 am-10:00 am
1 stop23h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$441
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sun 10/4
7:01 am-8:50 am
1 stop21h 49m
Reykjavik Keflavik Intl
Thu 10/8
10:00 am-5:42 pm
2 stops35h 42m
$457
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Thu 10/22
10:40 am-7:55 am
1 stop17h 15m
Reykjavik Keflavik Intl
Thu 10/29
12:00 pm-11:29 pm
1 stop15h 29m
$470
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Sat 11/14
8:00 pm-10:00 am
2 stops33h 00m
Reykjavik Keflavik Intl
Sat 11/21
12:00 pm-7:43 am
2 stops24h 43m
$476
BostonReykjavik
BOS Boston Logan Intl - KEF Reykjavik Keflavik Intl
BOSKEF
Boston Logan Intl
Fri 12/4
7:15 am-10:00 am
2 stops21h 45m
Reykjavik Keflavik Intl
Sat 12/12
12:00 pm-5:58 pm
1 stop10h 58m
$476
Showing 1-10 of 16 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 September.
| 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 | |
| Price Accuracy- | Trust Score*1 star |
- 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
Prices
Airlines
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 $303). 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 September 7, 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 27% 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 September 7, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andVirgin Atlantic 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
7.8
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
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
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Boston and Keflavik Intl flights
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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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$166 | Average$502 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$297 | Average$517 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$321 | Average$448 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$441 | Average$494 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$443 | Average$459 | FlexibilityNo cancel fee | On-time69% |