Cheap flights from California to London from $171
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to London departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from California to London
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to London?
The cheapest month to fly to London from California is in October. Flight prices, which tend to average around $626, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from California averaging around $643.
What is the cheapest day to depart on your flight to London?
The cheapest day to depart from California to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $775. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $894. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.
What is the cheapest time of day to depart on your flight to London?
Flying to London from California in the morning is the least expensive time of day to depart. momondo users have found prices as low as $755 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $853. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest California to London flight route?
Fly from Los Angeles to London Gatwick for the best California - London flight prices
How far in advance should I book a flight to London?
You are more likely to see cheaper flights to London from California when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to London for around $786 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from California for as low as $711 on momondo.
What cabin class options are available on California to London flights?
There are 4 cabin classes available to choose from on California to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from California to London?
Norse Atlantic UK, SWISS, and TAP AIR PORTUGAL are the most popular carriers operating from California to London
What airlines fly to London?
British Airways, United Airlines and Iberia are the top three most popular airlines that fly to London from California according to our data. British Airways is the first choice among our users, with 39% of people opting to fly with this airline when traveling to London. Keep in mind that there are 21 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
How many flights depart from California to London on average per day?
As of June 2025, 117 flights take off from California and land in London each day. The most common flight departure time for this route is 4:00PM, with 56% of daily flights taking off in the afternoon.
How many flights depart from California to London on average per week?
As of June 2025, there are 819 flights per week flying from California to London. The most common day of the week flights depart is Sat, with 15% of flights taking off on this day.
Cheap California to London flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from California to London
When did momondo last update prices for flights from California to London?
Prices for flights from California to London are refreshed on a daily basis.
How many operators does momondo search for flights from California to London?
There are 21 operators available for flights from California to London as of June 2025.
How old do you have to be to fly from California to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from California to London?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from California to London is Boeing 787-9 Dreamliner (22.00% of total bookings). The next most popular plane models are Airbus A380-800 (15.82%), Boeing 777-300ER (12.80%), and Boeing 777 (12.18%).
Best airlines flying from California to London
Compare and see reviews for airlines that fly from California to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $272 | Free Cancellation | Rating 7.2 2,873 reviews | |||
| PriceFrom $332 | Free Cancellation | Rating 7.3 1,393 reviews | |||
| PriceFrom $336 | Free Cancellation | Rating 7.5 1,628 reviews | |||
| PriceFrom $395 | Free Cancellation | Rating 7.2 47 reviews | |||
| PriceFrom $418 | Free Cancellation | Rating 7.4 652 reviews | |||
| PriceFrom $430 | Free Cancellation | Rating 7.5 1,466 reviews | |||
| PriceFrom $449 | Free Cancellation | Rating 6.8 7,149 reviews | |||
| PriceFrom $465 | Free Cancellation | Rating 7.6 1,291 reviews | |||
| PriceFrom $486 | Free Cancellation | Rating 7.8 1,361 reviews | |||
| PriceFrom $487 | Free Cancellation | Rating 7.1 1,892 reviews |
Traveling to a place near London?
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Why should I use momondo to find a flight deal from California to London?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from California to London. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from California to London with flexible booking policies on momondo?
All flight searches from California to London on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from California to London?
momondo provides multiple filters to help you find the best flight to London from California. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from California to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of California to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.