$151+ Cheap flights from Keflavik Intl (KEF) to Heathrow (LHR)
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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LHR
Nov 4 — Nov 111
Round-trip
1 adult, Economy
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Find cheap flights from Keflavik Intl to Heathrow 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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Keflavik Intl to Heathrow
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Best
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One-way
Cheapest flights from Keflavik Intl to HeathrowExplore the most affordable flight options available from Keflavik Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 5, 2026.
Explore the most affordable flight options available from Keflavik Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 5, 2026.
This Iberia deal was found by Cheapflights users on 10/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:05 pm -
Nonstop3h 00m
Sun 11/87:30 am -
Nonstop3h 15m
Deal found 10/1![British Airways logo]()
$206
This British Airways deal was found by Cheapflights users on 10/3. 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 11/136:10 pm -
Nonstop3h 00m
Mon 11/167:35 am -
Nonstop3h 15m
Deal found 10/3![British Airways logo]()
$239
This Expedia deal was found by Cheapflights users on 10/5. 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 12/54:05 pm -
Nonstop3h 00m
Mon 12/147:35 am -
Nonstop3h 15m
Deal found 10/5![British Airways logo]()
$243
This Mytrip deal was found by Cheapflights users on 10/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:00 pm -
2 stops25h 05m
Tue 12/159:55 am -
2 stops23h 55m
Deal found 10/2![Multiple Airlines logo]()
$245
This Expedia deal was found by Cheapflights users on 10/3. 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.
Sat 12/54:05 pm -
Nonstop3h 00m
Mon 12/77:35 am -
Nonstop3h 15m
Deal found 10/3![British Airways logo]()
$246
This British Airways deal was found by Cheapflights users on 10/3. 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 12/54:05 pm -
Nonstop3h 00m
Fri 12/111:45 pm -
Nonstop3h 20m
Deal found 10/3![British Airways logo]()
$248
This Booking.com deal was found by Cheapflights users on 9/30. 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 11/1611:55 am -
1 stop21h 40m
Sun 11/228:35 pm -
Nonstop3h 15m
Deal found 9/30![Multiple Airlines logo]()
$254
This Expedia deal was found by Cheapflights users on 10/4. 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.
Fri 12/116:10 pm -
Nonstop3h 00m
Wed 12/167:35 am -
Nonstop3h 15m
Deal found 10/4![British Airways logo]()
$257
This Orbitz deal was found by Cheapflights users on 10/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:05 pm -
Nonstop3h 00m
Wed 12/167:35 am -
Nonstop3h 15m
Deal found 10/2![British Airways logo]()
$258
This Mytrip deal was found by Cheapflights users on 10/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:00 pm -
2 stops25h 05m
Wed 12/169:55 am -
2 stops25h 45m
Deal found 10/2![Multiple Airlines logo]()
$261
Best flights from Keflavik Intl to HeathrowDiscover carefully curated flight deals from Keflavik Intl to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 5, 2026.
Discover carefully curated flight deals from Keflavik Intl to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 5, 2026.
This British Airways deal was found by Cheapflights users on 9/30. 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 1/1511:35 am -
Nonstop3h 10m
Sun 1/247:30 am -
Nonstop3h 15m
Deal found 9/30![British Airways logo]()
$245
This KLM deal was found by Cheapflights users on 10/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/22:45 pm -
1 stop18h 15m
Tue 2/98:25 pm -
1 stop17h 20m
Deal found 10/4![KLM logo]()
$264
This British Airways deal was found by Cheapflights users on 10/1. 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 11/74:05 pm -
Nonstop3h 00m
Mon 11/97:35 am -
Nonstop3h 15m
Deal found 10/1![British Airways logo]()
$278
This KLM deal was found by Cheapflights users on 10/1. 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 11/132:45 pm -
1 stop6h 05m
Mon 11/166:30 am -
1 stop7h 15m
Deal found 10/1![KLM logo]()
$333
This KLM deal was found by Cheapflights users on 10/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:45 pm -
1 stop16h 55m
Mon 11/96:30 am -
1 stop7h 15m
Deal found 10/5![KLM logo]()
$344
This KLM deal was found by Cheapflights users on 10/1. 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.
Thu 12/102:45 pm -
1 stop18h 15m
Wed 12/168:25 pm -
1 stop17h 20m
Deal found 10/1![KLM logo]()
$348
This KLM deal was found by Cheapflights users on 10/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1111:55 am -
2 stops19h 45m
Wed 12/168:25 pm -
1 stop17h 20m
Deal found 10/4![KLM logo]()
$353
This KLM deal was found by Cheapflights users on 10/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:45 pm -
1 stop6h 05m
Sun 11/88:25 pm -
1 stop17h 20m
Deal found 10/2![KLM logo]()
$374
This KLM deal was found by Cheapflights users on 10/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2412:25 pm -
2 stops8h 25m
Sun 1/316:30 am -
1 stop7h 15m
Deal found 10/2![KLM logo]()
$386
This KLM deal was found by Cheapflights users on 10/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/232:45 pm -
1 stop21h 20m
Mon 2/15:50 pm -
2 stops17h 00m
Deal found 10/4![KLM logo]()
$386
Last-minute flights from Keflavik Intl to HeathrowDiscover last-minute flight deals from Keflavik Intl to Heathrow. Data last updated October 5, 2026 and is based on user searches.
Discover last-minute flight deals from Keflavik Intl to Heathrow. Data last updated October 5, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 10/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:10 pm -
1 stop7h 00m
Thu 10/224:25 pm -
1 stop8h 45m
Deal found 10/2![Lufthansa logo]()
$262
This Iberia deal was found by Cheapflights users on 10/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:05 pm -
Nonstop3h 00m
Sun 11/87:30 am -
Nonstop3h 15m
Deal found 10/1![British Airways logo]()
$206
This British Airways deal was found by Cheapflights users on 10/3. 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 11/136:10 pm -
Nonstop3h 00m
Mon 11/167:35 am -
Nonstop3h 15m
Deal found 10/3![British Airways logo]()
$239
This Travelocity deal was found by Cheapflights users on 9/30. 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.
Fri 11/136:10 pm -
Nonstop3h 00m
Sun 11/157:30 am -
Nonstop3h 15m
Deal found 9/30![British Airways logo]()
$274
This Orbitz deal was found by Cheapflights users on 10/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:10 pm -
Nonstop3h 00m
Sun 11/158:35 pm -
Nonstop3h 15m
Deal found 10/1![Multiple Airlines logo]()
$276
This Booking.com deal was found by Cheapflights users on 9/30. 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 11/1611:55 am -
1 stop21h 40m
Sun 11/228:35 pm -
Nonstop3h 15m
Deal found 9/30![Multiple Airlines logo]()
$254
This British Airways deal was found by Cheapflights users on 10/5. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:05 pm -
Nonstop3h 00m
Sun 11/297:30 am -
Nonstop3h 15m
Deal found 10/5![British Airways logo]()
$264
This Gotogate deal was found by Cheapflights users on 10/4. 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.
Sat 11/216:05 pm -
1 stop21h 55m
Mon 11/238:35 pm -
Nonstop3h 15m
Deal found 10/4![Multiple Airlines logo]()
$273
This Travelocity deal was found by Cheapflights users on 10/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/264:45 pm -
Nonstop3h 00m
Sun 11/297:30 am -
Nonstop3h 15m
Deal found 10/4![British Airways logo]()
$272
One-way flights from Keflavik Intl to HeathrowSearch for one-way flight options from Keflavik Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 5, 2026.
Search for one-way flight options from Keflavik Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 5, 2026.
This British Airways deal was found by Cheapflights users on 10/5. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:05 pm -
Nonstop3h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![British Airways logo]()
$151
This British Airways deal was found by Cheapflights users on 10/1. 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 11/74:05 pm -
Nonstop3h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![British Airways logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 10/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:35 am -
2 stops11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 10/2711:55 am -
2 stops20h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 10/5. 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.
Fri 12/49:35 am -
2 stops11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Multiple Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
Mon 10/268:10 pm -
2 stops18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 10/5. 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.
Thu 4/18:35 am -
2 stops11h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 10/3. 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.
Fri 12/411:35 am -
1 stop10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Scandinavian Airlines logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 12/210:00 am -
2 stops9h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 11/2810:30 am -
2 stops9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 10/147:55 pm -
2 stops20h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 12/211:35 am -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Scandinavian Airlines logo]()
$162
Find flight deals from Keflavik Intl to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Heathrow (LHR). 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 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $206 (Iberia) |
One-way from | $151 (British Airways) |
Popular in | September |
Cheapest in | March |
Average price | $313 |
Good round-trip deal | $620 or less |
Good one-way deal | $302 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Keflavik Intl to Heathrow 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 5, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Sat 12/5
4:05 pm-7:05 pm
Nonstop3h 00m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$151
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Fri 12/4
6:10 pm-9:10 pm
Nonstop3h 00m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$151
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Thu 12/3
4:45 pm-7:45 pm
Nonstop3h 00m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$151
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Sat 11/28
4:05 pm-7:05 pm
Nonstop3h 00m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$153
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Thu 11/26
4:45 pm-7:45 pm
Nonstop3h 00m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$153
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Fri 11/27
6:10 pm-9:10 pm
Nonstop3h 00m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$153
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Sun 3/7
2:45 pm-9:00 am
1 stop18h 15m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$163
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Thu 12/31
2:45 pm-7:40 am
1 stop16h 55m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$163
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Sat 11/7
2:45 pm-7:40 am
1 stop16h 55m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$186
ReykjavikLondon
KEF Reykjavik Keflavik Intl - LHR London Heathrow
KEFLHR
Reykjavik Keflavik Intl
Wed 12/30
2:45 pm-8:50 pm
1 stop6h 05m
London Heathrow
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$186
Showing 1-10 of 21 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Reykjavik Keflavik Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-London Heathrow 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 Reykjavik Keflavik Intl Airport-London Heathrow 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 Keflavik Intl to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Keflavik Intl with our price prediction graph.
KEF-LHR
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 Reykjavik Keflavik Intl Airport to London Heathrow Airport
Prices
Delays
How often are flights from Reykjavik to London delayed?
About 9% of weekly flights between Reykjavik and London have experienced delays in the past year, with the average delay time being 125 minutes.
What is the most punctual flight time for Reykjavik to London flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Reykjavik to London flights?
Over the last year, Icelandair have had the lowest number of delays on this route, with just 8% of flights being delayed.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated October 5, 2026.
Peruse reviews from past customers who have flown with Icelandair from Reykjavik Keflavik Intl Airport to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
6.9
Entertainment
6.9
Food
6.1
Overall
6.9
Boarding
7.2
Crew
8.0
Reviews
1 / 20
8.0
ExcellentNina,Sep 2026
KEF - YVR
Comfort
6.9
Entertainment
6.9
Food
6.1
Overall
6.9
Boarding
7.2
Crew
8.0
Reviews
1 / 20
8.0
ExcellentNina,Sep 2026
KEF - YVR
Related info for your journey
Find useful and relevant information for your journey from Keflavik Intl to Heathrow. 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 London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
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Top airline flying from Keflavik Intl to Heathrow
Discover the top airline that operate flights from Keflavik Intl to Heathrow. 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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$244 | Average$432 | FlexibilityNo cancel fee | On-time76% |