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Amazing Icelandair SFO to LHR Flight Deals

The cheapest flights to Heathrow found within the past 7 days were $1,223 round trip and $954 one way. Prices and availability subject to change. Additional terms may apply.


FAQs about Icelandair Flights from SFO to LHR

Flying Tips & Tricks How do I find my flight number?
  • The number can be found in your travel itinerary, which will be emailed to you when you've completed your booking. If you're not too sure what to look for, browse the document for a code made up of numerals and letters. The first couple of letters and single digit are the IATA airline code, which represents the name of your airline. This part is followed by one, two, three or four digits — your flight number.
How early can you check bags for a flight?
  • If you want to arrive at the airport well ahead of time, you'll be thrilled to learn that you can check your bags in three hours before an international flight and two hours prior to a domestic one. Want to know what the check-in closing times are? For international flights, it's an hour prior to departure. For domestic flights, it's generally 45 minutes.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.