$116+ Cheap flights from Heathrow (LHR) 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KEF
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Heathrow 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 London Heathrow to Reykjavik Keflavik Intl are usually found in January or November, booked 42 days in advance, depart on a Saturday or Monday and return on a Thursday
Cheap flight deals from Heathrow to Keflavik Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Heathrow to Keflavik IntlExplore the most affordable flight options available from Heathrow to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Heathrow to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:35 pm -
Nonstop3h 15m
Sat 12/54:20 pm -
Nonstop3h 10m
Deal found 9/3![Icelandair logo]()
$201
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:35 pm -
Nonstop3h 15m
Sun 11/227:35 am -
Nonstop3h 15m
Deal found 9/5![Icelandair logo]()
$202
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:35 pm -
Nonstop3h 15m
Mon 12/77:35 am -
Nonstop3h 15m
Deal found 9/3![Icelandair logo]()
$203
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:35 pm -
Nonstop3h 15m
Tue 11/177:35 am -
Nonstop3h 15m
Deal found 9/7![Icelandair logo]()
$204
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:35 pm -
Nonstop3h 15m
Mon 11/167:35 am -
Nonstop3h 15m
Deal found 9/6![Icelandair logo]()
$206
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.
Sat 12/127:35 am -
Nonstop3h 15m
Wed 12/1611:45 am -
Nonstop3h 10m
Deal found 9/5![British Airways logo]()
$208
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.
Tue 11/38:35 pm -
Nonstop3h 15m
Mon 11/911:55 am -
1 stop21h 40m
Deal found 9/7![Multiple Airlines logo]()
$213
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.
Mon 12/147:35 am -
Nonstop3h 15m
Wed 12/1611:45 am -
Nonstop3h 10m
Deal found 9/5![British Airways logo]()
$214
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:35 am -
Nonstop3h 15m
Sat 11/214:05 pm -
Nonstop3h 00m
Deal found 9/3![British Airways logo]()
$216
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:35 pm -
Nonstop3h 15m
Sun 12/612:25 pm -
1 stop21h 10m
Deal found 9/6![Multiple Airlines logo]()
$217
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:35 am -
Nonstop3h 15m
Fri 11/206:10 pm -
Nonstop3h 00m
Deal found 9/2![British Airways logo]()
$218
Best flights from Heathrow to Keflavik IntlDiscover carefully curated flight deals from Heathrow to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Heathrow to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:35 am -
Nonstop3h 15m
Fri 11/206:10 pm -
Nonstop3h 00m
Deal found 9/3![British Airways logo]()
$245
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:50 pm -
1 stop15h 20m
Fri 11/66:05 pm -
1 stop15h 15m
Deal found 9/5![Scandinavian Airlines logo]()
$267
This ITA Airways 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:30 pm -
2 stops11h 40m
Tue 10/2012:10 am -
1 stop7h 10m
Deal found 9/6![Multiple Airlines logo]()
$386
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:30 am -
1 stop7h 15m
Tue 12/222:45 pm -
1 stop16h 55m
Deal found 9/7![KLM logo]()
$421
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:50 pm -
1 stop15h 20m
Tue 11/106:05 pm -
1 stop15h 15m
Deal found 9/3![Scandinavian Airlines logo]()
$289
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:35 am -
Nonstop3h 15m
Tue 11/1011:55 am -
Nonstop3h 10m
Deal found 9/6![British Airways logo]()
$293
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:20 am -
1 stop7h 00m
Mon 11/306:05 pm -
1 stop15h 15m
Deal found 9/4![Scandinavian Airlines logo]()
$327
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:30 pm -
1 stop15h 20m
Sun 11/86:05 pm -
1 stop15h 15m
Deal found 9/4![Scandinavian Airlines logo]()
$357
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/165:00 pm -
1 stop17h 50m
Sat 1/2311:35 am -
1 stop6h 55m
Deal found 9/7![Scandinavian Airlines logo]()
$393
Last-minute flights from Heathrow to Keflavik IntlDiscover last-minute flight deals from Heathrow to Keflavik Intl. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to Keflavik Intl. Data last updated September 8, 2026 and is based on user searches.
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:35 am -
1 stop7h 45m
Sun 10/1112:55 am -
1 stop12h 40m
Deal found 9/7![Scandinavian Airlines logo]()
$275
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:50 pm -
1 stop13h 00m
Tue 10/135:05 pm -
1 stop27h 35m
Deal found 9/4![Scandinavian Airlines logo]()
$292
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/84:25 pm -
1 stop8h 45m
Tue 10/2012:10 am -
1 stop7h 10m
Deal found 9/3![Multiple Airlines logo]()
$286
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:50 pm -
1 stop15h 35m
Mon 10/2611:55 am -
1 stop28h 30m
Deal found 9/2![Scandinavian Airlines logo]()
$273
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:50 pm -
1 stop15h 35m
Mon 10/2611:55 am -
1 stop21h 40m
Deal found 9/6![Scandinavian Airlines logo]()
$258
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:35 pm -
Nonstop3h 15m
Wed 11/47:35 am -
Nonstop3h 15m
Deal found 9/4![Icelandair logo]()
$279
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:40 am -
1 stop28h 10m
Wed 11/46:05 pm -
1 stop27h 35m
Deal found 9/4![Scandinavian Airlines logo]()
$284
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:45 am -
Nonstop3h 20m
Sat 11/74:05 pm -
Nonstop3h 00m
Deal found 9/7![British Airways logo]()
$260
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:40 am -
1 stop29h 00m
Mon 11/211:35 am -
1 stop28h 25m
Deal found 9/7![Scandinavian Airlines logo]()
$290
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:45 am -
Nonstop3h 20m
Mon 11/211:35 am -
1 stop28h 25m
Deal found 9/5![Multiple Airlines logo]()
$298
One-way flights from Heathrow to Keflavik IntlSearch for one-way flight options from Heathrow to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Heathrow to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:35 am -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![British Airways logo]()
$116
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:35 pm -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Icelandair logo]()
$117
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:25 pm -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$119
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:35 pm -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Icelandair logo]()
$122
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:50 pm -
2 stops20h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$124
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:30 am -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![British Airways logo]()
$125
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:35 pm -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Icelandair logo]()
$126
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:45 am -
Nonstop3h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![British Airways logo]()
$127
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:30 am -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![British Airways logo]()
$128
This Transavia Smart Connect 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 Transavia Smart Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:15 pm -
1 stop26h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$131
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/278:35 pm -
Nonstop3h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Icelandair logo]()
$137
Find flight deals from Heathrow to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $201 (Icelandair) |
One-way from | $116 (British Airways) |
Popular in | August |
Cheapest in | January |
Average price | $369 |
Good round-trip deal | $493 or less |
Good one-way deal | $485 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Heathrow 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 8, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Sat 10/31
11:45 am-3:05 pm
Nonstop3h 20m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$127
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Sun 12/6
1:40 pm-5:00 pm
Nonstop3h 20m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Sun 11/8
3:15 pm-5:15 pm
1 stop26h 00m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$131
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Fri 11/27
7:35 am-10:50 am
Nonstop3h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$152
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Mon 11/9
5:50 pm-1:45 pm
1 stop19h 55m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$157
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Mon 11/9
7:35 am-10:50 am
Nonstop3h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$170
Quickest round-trip
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Fri 10/2
7:35 am-9:40 am
Nonstop3h 05m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$192
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Sat 12/5
10:35 am-11:40 am
1 stop25h 05m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$204
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Fri 11/20
7:35 am-10:50 am
Nonstop3h 15m
Reykjavik Keflavik Intl
Fri 11/20
6:10 pm-9:10 pm
Nonstop3h 00m
$245
LondonReykjavik
LHR London Heathrow - KEF Reykjavik Keflavik Intl
LHRKEF
London Heathrow
Tue 11/3
7:50 pm-11:10 am
1 stop15h 20m
Reykjavik Keflavik Intl
Fri 11/6
6:05 pm-9:20 am
1 stop15h 15m
$267
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Heathrow 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 Heathrow to Keflavik Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on London Heathrow Airport-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 London Heathrow Airport-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London Heathrow Airport-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 London Heathrow Airport-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 Heathrow to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Heathrow with our price prediction graph.
LHR-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 London Heathrow Airport to Reykjavik Keflavik Intl Airport
Prices
Delays
How far ahead should I book a flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport?
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport, you should look to book at least 41 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Reykjavik Keflavik Intl Airport (average of $206). Flying from London Heathrow Airport to Reykjavik Keflavik Intl Airport in August is currently the most expensive (average of $506). 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 LHR to KEF?
Find hourly flight availability from Heathrow 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 8, 2026.
When flying from London Heathrow Airport to Reykjavik Keflavik Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from London to Reykjavik delayed?
About 10% of weekly flights between London and Reykjavik have experienced delays in the past year, with the average delay time being 105 minutes.
What is the most punctual flight time for London to Reykjavik flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Reykjavik flights?
Over the last year, Icelandair have had the lowest number of delays on this route, with just 10% of flights being delayed.
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 8, 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Reykjavik Keflavik Intl Airport, such as Icelandair and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
6.1
Crew
8.0
Entertainment
6.9
Comfort
6.9
Boarding
7.2
Overall
6.9
Reviews
1 / 20
4.0
OkayChin Keong,Aug 2026
AMS - KEF
Food
6.1
Crew
8.0
Entertainment
6.9
Comfort
6.9
Boarding
7.2
Overall
6.9
Reviews
1 / 20
4.0
OkayChin Keong,Aug 2026
AMS - KEF
Food
6.1
Crew
8.0
Entertainment
6.9
Comfort
6.9
Boarding
7.2
Overall
6.9
Reviews
1 / 20
4.0
OkayChin Keong,Aug 2026
AMS - KEF
Related info for your journey
Find useful and relevant information for your journey from Heathrow 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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Top 2 airlines flying from Heathrow to Keflavik Intl
Discover the top 2 airlines that operate flights from Heathrow 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$169 | Average$477 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$202 | Average$449 | FlexibilityNo cancel fee | On-time76% |