KLM Flight 4820 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

KLM Flight 4820 Route Deals From $789

The cheapest prices found with in the last 7 days for return flights were $637 and $789 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Apr 28 - Mon, May 5
LHR
Heathrow
SFO
San Francisco Intl.
$637 Roundtrip, found 3 days ago
$637
Roundtrip
found 3 days ago
Select KLM flight, departing Mon, Apr 28 from Heathrow to San Francisco Intl., returning Mon, May 5, priced at $637 found 3 days ago