
$674 Cheap Icelandair flights from San Francisco to London (SFO to LHR)
Find The Best Day To Fly from San Francisco to London
Amazing Icelandair SFO to LHR Flight Deals
The cheapest flights to Heathrow found within the past 7 days were $1,209 round trip and $674 one way. Prices and availability subject to change. Additional terms may apply.
LHR From SFO Economy Coach Packages on Similar Airlines



Frequently asked questions
Discover our best Icelandair flight from San Francisco SFO to London LHR
To find the best deals on flights to San Francisco from London with Icelandair, just enter your travel dates, filter by Icelandair, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from San Francisco SFO to London LHR with Icelandair
If you’re planning a round trip, booking return flights with Icelandair is usually the most cost-effective option. With airfares ranging from $1,209 to $1,209, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way Icelandair flights from San Francisco SFO to London LHR
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Icelandair flight from San Francisco to London costs from $674. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to London LHR from San Francisco SFO with Icelandair
To find a cheap Icelandair flight from San Francisco SFO to London LHR, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on Icelandair flights from San Francisco SFO to London LHR
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as December, or if you book a flight with a stopover.
Find nonstop flights from San Francisco SFO to London LHR with Icelandair
If you’re keen to be on London soil fast, don’t waste time with a stopover—filter your search results to show direct Icelandair flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for Icelandair flights from San Francisco SFO to London LHR
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to London LHR from San Francisco SFO with Icelandair on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| KEF | ISL | Keflavik Intl. | 23 |
| SEA | USA | Seattle - Tacoma Intl. | 3 |
| TPA | USA | Tampa Intl. | 2 |
| CPH | DNK | Kastrup | 2 |
| LAX | USA | Los Angeles Intl. | 2 |
| SFO | USA | San Francisco Intl. | 2 |
| MCO | USA | Orlando Intl. | 2 |
| HEL | FIN | Vantaa | 2 |
| LHR | GBR | Heathrow | 2 |
| ORD | USA | O'Hare Intl. | 1 |
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Reviewed on Nov 4, 2026

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"Some of the rooms are old, and there are humidity spots on the walls. Other than that, a great value stay, and a very convenient one."
Reviewed on Nov 4, 2026
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