SFO - LON

$218 Find Cheap Flights from San Francisco to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to London departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to London.
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Expert advice
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Flights Deals

Cheap Flights from San Francisco to London (SFO-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to London

Sat, Oct 4 - Tue, Oct 7
Scandinavian Airlines Logo
7:40 pm - 8:55 amSFO-LHR
29h 15m2 stops
Scandinavian Airlines Logo
6:40 am - 4:30 pmLHR-SFO
17h 50m1 stop
$503Scandinavian Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
Scandinavian Airlines Logo
7:40 pm - 8:55 amSFO-LHR
29h 15m2 stops
Scandinavian Airlines Logo
6:40 am - 4:30 pmLHR-SFO
17h 50m1 stop
$524Scandinavian Airlines
Find Deal
Sun, Aug 10 - Wed, Aug 20
Virgin Atlantic Logo
7:05 am - 10:00 amSFO-LGW
18h 55m1 stop
Virgin Atlantic Logo
12:00 pm - 11:47 pmLGW-SFO
19h 47m1 stop
$558Virgin Atlantic
Find Deal
Tue, Aug 26 - Thu, Sep 4
British Airways Logo
4:35 pm - 11:00 amSFO-LHR
10h 25mnonstop
British Airways Logo
2:15 pm - 5:25 pmLHR-SFO
11h 10mnonstop
$560British Airways
Find Deal
Wed, Aug 13 - Fri, Aug 22
British Airways Logo
4:35 pm - 11:00 amSFO-LHR
10h 25mnonstop
British Airways Logo
10:45 am - 1:50 pmLHR-SFO
11h 05mnonstop
$561British Airways
Find Deal
Mon, Aug 18 - Thu, Sep 4
Virgin Atlantic Logo
11:35 am - 10:00 amSFO-LGW
14h 25m1 stop
Virgin Atlantic Logo
12:00 pm - 11:48 pmLGW-SFO
19h 48m2 stops
$561Virgin Atlantic
Find Deal
Tue, Aug 26 - Thu, Sep 4
Iberia Logo
2:37 pm - 12:15 pmSFO-LHR
13h 38m1 stop
Iberia Logo
2:15 pm - 5:25 pmLHR-SFO
11h 10mnonstop
$565Iberia
Find Deal
Wed, Aug 13 - Wed, Aug 27
Iberia Logo
2:19 pm - 12:30 pmSFO-LHR
14h 11m1 stop
Iberia Logo
10:45 am - 1:50 pmLHR-SFO
11h 05mnonstop
$566Iberia
Find Deal
Wed, Sep 10 - Wed, Sep 17
United Airlines Logo
8:30 am - 9:35 amSFO-LHR
17h 05m1 stop
United Airlines Logo
6:30 am - 3:28 pmLHR-SFO
16h 58m2 stops
$608United Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 27
United Airlines Logo
6:10 am - 10:00 amSFO-LHR
19h 50m2 stops
United Airlines Logo
8:40 am - 4:10 pmLHR-SFO
15h 30m1 stop
$616United Airlines
Find Deal
Expert advice

Expert advice for your flight from San Francisco to London

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United Polaris offers lie-flat seats with aisle access, ideal for long-haul comfort.


United Polaris Lounges provide a luxurious experience with restaurants and less crowding.

British Airways

BA's Premium Economy offers 7 inches extra legroom, enhancing comfort on long flights.


BA's Club World offers flat beds and enhanced privacy for business travelers.

Iberia

Iberia's Business Class features all-aisle access and comfortable bedding for restful flights.


Iberia's Premium Economy provides 37-inch seat pitch and adjustable headrests for comfort.

Read more about Iberiaby Marisa Garcia
Virgin Atlantic

Virgin's Upper Class offers fully flat beds and exclusive lounge access for luxury travel.


Virgin's Premium Economy offers priority boarding and enhanced meal service for added comfort.

Delta

Delta One Suites offer privacy with sliding doors, ideal for long-haul flights.


Delta's Wi-Fi is free for SkyMiles members on most international flights.

Read more about Deltaby Stefanie Waldek
Lufthansa

Lufthansa's Premium Economy offers 50% more space and an extra checked bag for long-haul comfort.


Lufthansa's FlyNet provides free messaging for Miles & More members on many flights.

Read more about Lufthansaby Jessica Macdonald
Airports
SFO

SFO offers curbside check-in for United, Delta, and Southwest, making it easier for families and those with heavy luggage.

Read more about SFOby Blane Bachelor
LHR

The Elizabeth Line offers a cost-effective way to reach central London from Heathrow, taking about 35 minutes.

Read more about LHRby Duncan Madden
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Delta

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff

Laura Ratliff

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Useful Info

KAYAK's insights & trends for San Francisco to London flights

Get data-powered insights and trends into flights from San Francisco to London to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to London
Find cheap flights to London

Planning a trip from San Francisco to London? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What is the cheapest San Francisco to London flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from San Francisco to London.

Our data shows that the cheapest route for a return flight from San Francisco to London cost $607 and was between San Francisco (SFO) and London Heathrow Airport (LHR). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $607.

What’s the cheapest day of the week to fly from San Francisco to London?

The average price of all round-trip flights from San Francisco to London clicked on KAYAK for each day over the last 12 months.

For San Francisco to London, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London back to San Francisco, the best deals are generally found on Thursday, with Monday being the most expensive.

What is the cheapest month to fly from San Francisco to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to London is October, where tickets cost $634 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,075 and $958 respectively.

Can I save money by flying with a layover from San Francisco to London?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $3,607 on average.

How far in advance should I book a flight from San Francisco to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to London, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

 AI-powered savings tips

KAYAK's tips to save more on a San Francisco to London flight

When planning a trip from San Francisco to London, it's important to consider a few factors to get the best deal. Generally, Tuesday is the cheapest day of the week to fly, while October is the cheapest month.

Route Choice: Opt for flights from San Francisco to London Gatwick for the cheapest fares.

Booking Time: Book your flight around 14 days in advance to get the best price.

Airline Selection: WestJet generally offers the cheapest flights for this route.

Flight Type: Choosing a flight with one stop can save you money compared to direct flights.

This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK. 


Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$218
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from San Francisco to London Heathrow Airport

When to book flights from San Francisco to London

Are your dates flexible? Find out the best times to travel from San Francisco to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from San Francisco to London: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from San Francisco to London 
PallaviFlew with British AirwaysSFO-LHRApr 2025
Eat at the lounge first so you are not stuck eating overcooked cheese ravioli
JaneFlew with United AirlinesSFO-LHRMay 2025
Do not fly United. Try to get Lufthansa.
TapanFlew with British AirwaysSFO-LHROct 2024
Great baggage policy in BA.. The worst part was experience at London Heathrow airport. Security was slow, too many people. Almost lost connecting flight even with 2 hours layover.
Verified travelerFlew with American AirlinesSFO-LHRApr 2024
best airlines for business class: KLM and Turkish

FAQs for booking flights from San Francisco to London

  • What disability services are available at London Heathrow Airport (LHR)?

    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.

  • Are pets allowed to travel through San Francisco International Airport (SFO)?

    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.

  • What are some good hotels near London Heathrow Airport (LHR)?

    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.

  • Can I store my luggage at London Heathrow Airport (LHR)?

    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.

  • Are there baby care facilities at San Francisco Airport (SFO)?

    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.

  • Are there banking services at London Heathrow Airport (LHR)?

    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.

  • Where are the duty-free shops located at London Heathrow Airport (LHR)?

    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.

  • Does London Heathrow Airport (LHR) have any prayer rooms?

    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.

  • What are the most sustainable airlines with flights from San Francisco to London?

    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.

  • What is the best way to travel from London Gatwick Airport (LGW) to downtown London?

    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.

  • Is there public transport from downtown San Francisco to San Francisco Airport (SFO)?

    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.

  • Is there public transport from London Heathrow Airport (LHR) to central London?

    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.

  • What is the cheapest flight from San Francisco to London?

    In the last 3 days, the lowest price for a flight from San Francisco to London was $218 for a one-way ticket and $503 for a round-trip.

  • Do I need a passport to fly between San Francisco and London?

    Yes

  • Which airports will I be using when flying from San Francisco to London?

    When flying out of San Francisco you will be using San Francisco. You will be landing at one of these airports: London City, London Gatwick, London Heathrow, London Luton, London Southend, or London Stansted.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to London?

    KLM, SWISS, Iberia, United Airlines, and Lufthansa offer inflight Wi-Fi service on the San Francisco to London flight route.

  • Which aircraft models fly most regularly from San Francisco to London?

    The Boeing 777 is the aircraft model that flies most regularly on the San Francisco to London flight route.

  • Which airline alliances offer flights from San Francisco to London?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Francisco and London, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Francisco to London?

    There are nonstop flights from San Francisco to London on a daily basis.

  • Which is the best airline for flights from San Francisco to London, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to London are Delta and United Airlines. With an average price for the route of $776 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $856 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Francisco to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to London

  • Looking for a cheap flight? 25% of our users found flights on this route for $437 or less one-way and $722 or less round-trip.
  • To get a direct flight from San Francisco to London, consider flying with either British Airways or American Airlines. Both companies are known for offering a diverse selection of flights between these two locations, along with affordable tickets and amenities such as free checked bags, food and drinks. Other airlines, including Aer Lingus and Delta, also provide direct non-stop flights from San Francisco Airport (SFO) to London Heathrow Airport (LHR). Additionally, there are affordable one-stop and two-stop flights from San Francisco to London Heathrow with Lufthansa, SWISS Airlines, British Airways and Iberia.
  • Feeling nervous before your flight to London? Look out for the Wag Brigade at SFO. The Wag Brigade consists of 20 or so therapy dogs trained to de-stress passengers before their flight. You can identify them by their vests reading "Pet Me".
  • If you’re interested in having a comfortable place to pass the time before your flight takes off, book your ticket with an airline that has a private lounge at San Francisco International Airport (SFO). American, Delta and United Airlines all have private lounges in San Francisco, and they often offer access passes that are complimentary or at a reduced price for their customers.
  • For those traveling with children, make sure to stop by one of the Stay and Play areas located in London Heathrow Airport (LHR), open from 6 am to 9 pm every day. They are situated in the departures section, past security, and are nearby Gates 1–6. Entry is free, suitable for children aged 0–9. These play areas contain a variety of games, toys and activities, making them the perfect way for children to burn off some energy ahead ofb a long flight.
  • There are several lounges at London Heathrow Airport (LHR), including the Air Canada Maple Leaf Lounge, United Club, and Plaza Premium Arrivals Lounge in Terminal 3, as well as the Regus Express Business Lounge and No. 1 Heathrow Lounge in Terminals 2 and 2B.
  • Free unlimited WiFi is available at London Heathrow Airport (LHR). The airport also provides free internet kiosks in every terminal. The charging area in Terminal 5 is located near check-in zones G and D, while charging stations in Terminal 2 are situated next to check-in Zones A/B and C/D.
  • You can relax at nearby hotels after a long flight from San Francisco to London Luton Airport (LTN). The Holiday Inn Express London – Luton Airport, an IHG Hotel, is about an 8-minute walk from the airport. While the hotel doesn’t offer a free airport shuttle, it is near the First Capital Connect bus station, which operates buses linking Luton Airport to Luton Parkway train station.
  • San Francisco Airport (SFO) provides free WiFi access for up to 4 hours, with passengers prompted to accept terms and conditions. Free power outlets and workstations are available in WiFi-accessible areas, and although charging may be slower, rapid charging areas can be found in Terminal 1 near Gate 23 and Terminal 3 near Gate 87.
  • If you arrive at the airport a little too early, there are plenty of things to do to pass the time at SFO. Check out the art on display or learn something new at the Aviation Museum in the International Terminal. The observation deck is a great place to watch planes take off and land, and the flight deck provides fascinating information on SFO and San Francisco.
  • San Francisco International Airport (SFO) is a major international hub with four terminals connected by walkways and an AirTrain. Getting between terminals can be tiresome, so the airport provides trains and shuttles to quickly transport passengers between terminals, the parking garage, and the BART station at SFO.
  • Consider flying to London Heathrow Airport (LHR) over Gatwick, as it serves as a hub for British Airways, allowing easy connections to many other destinations in London.
  • If you are traveling to the southern parts of London, prioritize flying to London Gatwick Airport (LGW) over LHR. LHR is in west London, ideal for people traveling to the north, east, west, and central London, while LGW is located 30 miles to the south, making it ideal for those traveling to the south.
  • Interested in flights from San Francisco to London? You have three different airports to choose from. San Francisco International Airport (SFO) is the primary airport in the region and offers a diverse selection of flights. Oakland International Airport (OAK) is a smaller and quieter choice. San Jose Mineta International Airport (SJC) is also an option, particularly practical for travelers leaving from the southern region of San Francisco.
  • When flying to London, you have five different airports to choose from. London Heathrow (LHR) is the largest and most convenient for those flying direct, while London City (LCY), London Stansted (STN), and London Luton (LTN) are best for travelers who prefer small and quiet airports. Finally, London Gatwick (LGW) is a practical option for anyone planning on staying in the suburbs.

Prefer to fly direct from San Francisco to London?

Find which airlines fly direct from San Francisco Airport to London, which days they fly and book direct flights.

Direct departures

San Francisco to London

Monday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Tuesday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Wednesday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Thursday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Friday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Saturday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Sunday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

See more direct flights

Direct returns

London to San Francisco

Monday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Tuesday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Wednesday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Thursday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Friday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Saturday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

Sunday

British Airways, United Airlines, Virgin Atlantic

British Airways, United Airlines, +1 more

See more direct flights
See more direct flights

Top 5 airlines serving from San Francisco to London

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7951 reviews
7.3Food
8.5Crew
7.9Comfort
7.9Entertainment
8.2Boarding
Airline reviews

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

6.0 GoodWalter, May 2025ONT - SLC
Read more Delta reviews

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

I had an issue with the name on my ticket vs my passport name. I was very upset that the Iberia ticket clerk had no authorization to help me and I was left to fix it. It took 19 calls of persons promising to accomplish and not doing anything before I reached someone who helped me in 10 minutes. Two of them even hung up on me. I missed my original flight because of this. Terrible customer service.

The flight was delayed twice. When the crew explained about the debris causing flat tires, I was glad they took the time to change all four.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Flight boarded three hours late for no reason other than someone made a huge error in crew scheduling. We missed our connecting flight in Madrid and got zero help from American or Iberian airlines on rebooking. We had to pay for a car to take us to the Madrid train station and pay for train tickets to Santiago. We never used our booked flight to Santiago. American claims I can submit the expenses but they are not obligated to cover them. Very frustrating.

Flight delayed Service could be better Iberia staff are not really friendly

They cancelled the flight)(they said bad weather but many other flights took off) and made us wait 5 hours in line to figure out what to do. We ended up making a new flight the next day on another airlines...I hope they honor giving us our money back

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

The seats were way too crowded. Just because I do not have the luxury of a suite, does not mean that I want to fly from Austin to London scrunched between two people and the seat in front of me in my face. Ridiculous. I should have flown with Turkish Airlines...

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

Paid for “extra room” selected seat. Wasn’t a benefit. Also was in aisle and was bumped almost every time attendants walked down aisle. Should have saved the assigned seat money and let them select.

My flights were great and the crew on them was lovely especially the London to Barcelona flight as Al & AJ were so amazingly nice. I wish they would be my crew always as they have the best customer service. Sadly both flights were delayed the first one from Vegas was because they clearly loaded the cargo wrong the plane was off balance making us 2 hours late. This made me miss my connection and sadly it was challenging rebooking while I was on the flight. I will never use Kayak again as there was no customer service number or live chat and you rebooked me on a flight 2 days later. I had my mom call BA to change it which she did after spending an hour on hold. This should not be so difficult. My second flight was an hour delayed due to not being able to disconnect the bridge from the plane but I did finally make it home.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

A little better than outward journey but mild chaos at the boarding gate because some people with boarding cards from connecting flights had cards which weren't recognised

The BA business class cabin is excellent,very comfortable for sleeping but the service could be improved.

Surly rude flight attendants. I ordered the chicken and was given a vegetarian meal with no explanation and no opportunity to change it. I tried to order another beverage and was told by the young humorless flight attendant to “wait”. And she never came back. The seats were very uncomfortable and cramped. The last time I flew British Airways was many years ago but I remember it was amazing and the crew were very charming. This was a terrible disappointment given the cost of the flight.

Nice flight, attentive crew, soft landing by the Pilot,, comfortable seat.

I paid for business class…. And was counting on the usual packet of toilettes to be provided. They were not because not enough were brought on the plane so they could t give to some and not all. So no tooth brush nor eye cover. Then NO coffee since there was no hot water. The lay I er too short because of delays and my luggage didn’t make the next flight!! It is now a day later and I am awaiting to hear if my bag has arrived. Very inconvenient!. I suppose I need to be glad that I spend over $4000 since I doubt those in coach or premium economy even made that next flight..Heathrow is the worst.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

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