$299 Find Cheap Flights from San Francisco to London - Compare and Save

LHR is a fully accessible airport with several structures ensuring easy movement for passengers with disabilities. Ramps, elevators and moving walkways provide step-free access for people in wheelchairs. Reserved seating at check-in points, parking spaces and accessible restrooms are available. Guide dogs are allowed at the airport.

Yes, Fido is welcome to travel through SFO. However, TSA guidelines require Fido to remain in his carrier while in the airport, except when using the relief areas or passing through security. The airport has also provided pet relief areas to ensure your dog is comfortable at SFO. You will find pet relief areas in all four terminals, and the general rule is that outdoor relief areas are pre-security, and indoor relief areas are post-security.

The Leonardo Hotel is a stylish 4-star choice directly adjacent to London Heathrow Airport (LHR) and only a 22-minute drive from the famous Windsor Castle. The Renaissance London is less than a 10-minute walk from the airport and a 20-minute drive from the Royal Botanic Gardens.

If you would like to store some of your luggage or personal items at London Heathrow Airport (LHR), visit the Arrivals wing in Terminal 2, 3, 4 or 5. The employees at the luggage desks can store your items for up to 90 days and charge you either daily or hourly rates, depending on the duration you plan to keep your things there.

Nursing rooms are available at San Francisco Airport (SFO) for passengers traveling with infants. Family restrooms and a nursery are available in Terminals 1, 2 and 3. SFO Kids’ Spot is also available for parents who want to keep their kids entertained as they await their flight. Children’s play areas are located in Terminal 1 near the boarding area and Terminal 2 near Gates 54A and 58B after the security area.

ATMs are available in all terminals at London Heathrow Airport (LHR), and Travelex provides currency exchange services across all terminals. It is recommended to use the pick-up and order-online service at LHR. There are 35 currency exchange locations throughout the airport, with most operating from as early as 5 am to 10 pm.

Stock up on essentials before you start your tour of London and do it tax-free. LHR has 17 World Duty-Free shops dotted around the terminals. You can find anything from cosmetics to concessions, jewelry and electronics at these shops, and yes, they will be available tax-free. In addition to the duty-free stores, LHR also has several retail shops.

London Heathrow Airport (LHR) is home to St. George’s Chapel and four interfaith prayer rooms. Each of these prayer rooms is open during standard business hours and available for all travelers, regardless of their religious affiliations.

There are several nonstop flights from San Francisco to London. On average, around 2,222 kg of carbon is emitted per passenger on flights from San Francisco to London. Virgin Atlantic, Delta and KLM are the three most sustainable airlines operating on this route, emitting around 43%, 43% and 41% less carbon than other airlines on this route.

If you are flying into London Gatwick Airport (LGW) but planning on staying in downtown London, the easiest way to travel between these two destinations is by taking the train. The Gatwick Express is a popular option, as the entire journey only takes 45 minutes, and it stops at several major stations in the city center.

A quick and convenient way to travel from downtown San Francisco to SFO Airport is via the Amtrak train. Access San Francisco Airport from the Amtrak train station through the Bay Area Rapid Rail, which takes around 40 minutes. Another transfer option is a taxi, which takes approximately 25–30 minutes. The SamTrans public bus service also offers transportation from San Mateo County and other parts of San Francisco to SFO Airport. The bus drops off passengers near Courtyard 2 in Terminal 2 and near Courtyard 4 in Terminal 3.

While the Heathrow Express is slightly quicker than the Heathrow Connect, the latter offers cheaper transfer options from Heathrow to central London. The Heathrow Connect train leaves the airport every 30 minutes and takes around 40 minutes from Terminal 5 to London’s central business district.

Among airlines operating San Francisco to London flights:

• British Airways: offers extra legroom
• United Airlines: offers extra legroom; offers free seat selection
• Virgin Atlantic: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection
• Air France: offers extra legroom; offers free seat selection

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

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

• United Airlines
• British Airways
• Virgin Atlantic

Flights from San Francisco to London usually depart from San Francisco (SFO) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

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

• British Airways: a cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag and a checked bag in Economy Class
• Virgin Atlantic: a cabin bag and a checked bag in Economy Class

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

Four cabin classes are available on flights from San Francisco to London:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $495 round-trip via San Diego (SAN), compared to $901 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $70–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

• Kastrup Copenhagen (CPH) - 28% of one-stop connections
• Dublin (DUB) - 21% of one-stop connections
• Lisbon Humberto Delgado (LIS) - 18% of one-stop connections
• Zurich (ZRH) - 7% of one-stop connections

Kastrup Copenhagen (CPH) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 12% on the San Francisco to London route. Wednesday is the cheapest departure day at $846 round-trip on average, while Saturday is the most expensive at $953, a difference of $107. 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 San Francisco to London route, 11% of flights were delayed in the past 3 months, with delays averaging 2 hours 34 minutes.

Afternoon is the busiest departure period on San Francisco to London flights, with 60% of flights leaving in that window. Evening departures account for 40%, morning flights for 0%, and night flights for 0%.

Some of the most popular sights in London are Paddington Station, Central London and London Victoria Station. These are among the most viewed places in London on KAYAK.

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

• Earliest: departs at 12:50 pm and lands at 11:18 pm
• Latest: departs at 9:35 pm and lands at 8:03 am.

The flight takes about 10h 28m.

Last-minute fares on this route - booked within 2 weeks of departure - run 0% above the route average of $886. Book 26 weeks before departure for the lowest fares.

A nonstop flight from San Francisco to London takes 10h 28m, covering 5,358 miles.

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 San Francisco to London are currently lower than usual. Average one-way flight prices are about $358, which is 29% below the typical average for this route.

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

• British Airways: 92% on time
• Virgin Atlantic: 89% on time
• United Airlines: 87% on time

Overall, flights on this route are on time 89% of the time on average.

Evening 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 Dublin (DUB) gives the shortest average 1-stop total travel time at 14h 05m, compared with 14h 25m via Denver Intl (DEN) and 14h 28m via Paris Charles de Gaulle (CDG).

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

Since London is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) — daily rates from around $7:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Near London Gatwick Airport (LGW) — daily rates from around $8:

• GREEN MOTION
• DRIVALIA
• U-Save
• Europcar
• Alamo

Near London City Airport (LCY) — daily rates from around $11:

• GREEN MOTION
• Budget
• Hertz
• Avis
• Sixt

Near London Luton Airport (LTN) — daily rates from around $11:

• GREEN MOTION
• DRIVALIA
• Alamo
• Europcar
• Budget

Near London Stansted Airport (STN) — daily rates from around $10:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• U-Save

Round-trip flights from San Francisco to London range from $687 to $1,148, with an average of $886 over the past 12 months. Anything below $687 counts as a good deal.

Two airlines offer in-flight Wi-Fi on San Francisco to London flights:

• • KLM
• • American Airlines