C$ 700 Find Cheap Flights from London to San Francisco – Compare and Save

Heathrow Airport has at least one children’s play area in every terminal and most restaurants do children’s menus, and some promise to serve food within 15min. You can pre-order nappies and baby milk via the on-site chemist in each terminal, which reduces the need to carry more things through security.

There are three airports in the San Francisco Bay area: San Francisco International Airport (SFO), Oakland International Airport (OAK) and San Jose International Airport (SJC). SFO is the airport that has more international airline options while Oakland and San Jose have more low-cost carriers and domestic routes. Both British Airways and Virgin fly non-stop to San Francisco SFO Airport from London Heathrow.

There are two trains from central London, leaving Paddington station; the Heathrow Express takes 15min, non-stop and the Heathrow Connect takes 30min with a few stops. It is also very straightforward to catch the London Underground - the journey takes about an hour from central London.

The Bay Area Rapid Transit (BART) is easy, taking 30min, with trains leaving 3-4 times every hour. Passengers can connect to the BART from any of the terminals via the free Air Train. BART trains run from 5:00 in the week, 6:00 on Saturdays, and 8:00 on Sundays and stop at midnight every day. There are also buses that run from San Francisco SFO Airport to various parts of the state. For example, the Evans Airport shuttle serves Napa, the Marin Airporter goes into Marin County and the Sonoma County Airport Express carries passengers to Sonoma County.

Among airlines operating London Heathrow Airport to San Francisco flights:

• Lufthansa: offers extra legroom; offers free seat selection
• British Airways: offers extra legroom; offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• Virgin Atlantic: offers extra legroom; offers free seat selection
• Brussels Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between London Heathrow Airport and San Francisco. The airlines offering direct flights on this route include:

• United Airlines
• British Airways
• Virgin Atlantic

Flights from London Heathrow Airport to San Francisco usually depart from London Heathrow (LHR) and arrive at San Francisco (SFO).

Here are some options for this route, based on selected ticket types and cabin classes:

• Lufthansa: a carry-on bag and a checked bag in Economy Class
• British Airways: a carry-on bag and a checked bag in Economy Class
• United Airlines: a carry-on bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Economy Class is available on flights from London Heathrow Airport to San Francisco.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 855 round-trip via Zurich (ZRH), compared to C$ 1,041 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 71–C$ 139 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 787-9 Dreamliner family is used most often on this route, operated mainly by Lufthansa and Brussels Airlines. Other aircraft seen on the route include Airbus A380-800 variants.

One-stop flights from London Heathrow Airport to San Francisco most commonly connect through:

• Dublin (DUB) – 35% of one-stop connections
• Lisbon Humberto Delgado (LIS) – 17% of one-stop connections
• Kastrup Copenhagen (CPH) – 16% of one-stop connections
• Seattle/Tacoma Intl (SEA) – 7% of one-stop connections

Dublin (DUB) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 11% on the London Heathrow Airport to San Francisco route. Thursday is the cheapest departure day at C$ 972 round-trip on average, while Sunday is the most expensive at C$ 1,083, a difference of C$ 111. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London Heathrow Airport to San Francisco route, 13% of flights were delayed in the past 3 months, with delays averaging 2 hours 23 minutes.

Morning is the busiest departure period on London Heathrow Airport to San Francisco flights, with 50% leaving in that window. Afternoon departures account for 50%, Evening flights for 0%, and Night flights for 0%.

Some of the most popular sights in San Francisco are Fisherman's Wharf, Union Square, and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

These are the earliest and latest flight times available from London Heathrow Airport to San Francisco:

• Earliest: departs at 10:05 am and lands at 9:14 pm
• Latest: departs at 4:15 pm and lands at 3:24 am.

The flight takes about 11h 09m.

Last-minute fares on this route – booked within 2 weeks of departure – run 13% above the route average of C$ 1,032. Book 16 weeks before departure for the lowest fares.

A direct flight from London Heathrow Airport to San Francisco takes 11h 09m, covering 13,857 km.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

One-way fares from London Heathrow Airport to San Francisco are currently lower than usual. Average one-way flight prices are about C$ 730, which is 22% below the typical average for this route.

United Airlines is slightly above the route average for timely arrivals, while Virgin Atlantic has a lower on-time arrival rate. On-time arrival rates on London Heathrow Airport to San Francisco flights are:

• United Airlines: 89% on time
• Virgin Atlantic: 88% on time
• British Airways: 85% on time

On average, flights on this route are punctual 87% of the time.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 14h 06m, compared with 14h 07m via Dublin (DUB) and 14h 19m via Amsterdam Schiphol (AMS).

San Francisco is 8 hours behind London Heathrow Airport (Pacific Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates starting from around C$ 21 for economy cars. Top options include:
• Thrifty
• Europcar
• Dollar
• Hertz
• Fox

Round-trip flights from London Heathrow Airport to San Francisco range from C$ 861 to C$ 1,258, with an average of C$ 1,032 over the past 12 months. Anything below C$ 861 counts as a good deal.

KLM is the only airline on the London Heathrow Airport to San Francisco route offering in-flight Wi-Fi. Pricing depends on fare class.