$136 Find Cheap Flights 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 to London departing on 10/23. 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
1 adult, Economy

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 for flights to London
These are the airlines KAYAK users have selected most often from within our search results for flights to London
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$463
Overall average: $498
Norse Atlantic UK
Di 3/3So 3/8
JFK - LGW • Non-stop
Cheapest one-way
$135
Typical prices: $129-$239
Norse Atlantic UK
Do 10/23
JFK - LGW • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts and KAYAK users
BA's premium economy offers extra legroom for comfort.
Expect delays and long walks at Heathrow Airport.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
British Airways
Most flights • 336 per week
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
JFK-LON
Cheapest
BOS-LON
Most popular
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 27% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights 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 to London

Di, Mrz 3 - So, Mrz 8
Norse Atlantic UK Logo
6:05 pm - 6:00 amJFK-LGW
6h 55mnonstop
Norse Atlantic UK Logo
1:00 pm - 4:55 pmLGW-JFK
7h 55mnonstop
$463Norse Atlantic UK
Find Deal
Mo, Nov 10 - Mi, Nov 19
TAP AIR PORTUGAL Logo
10:00 pm - 10:40 pmJFK-LHR
19h 40m1 stop
TAP AIR PORTUGAL Logo
8:15 am - 8:05 pmLHR-JFK
16h 50m1 stop
$464TAP AIR PORTUGAL
Find Deal
Do, Nov 6 - So, Nov 9
United Airlines Logo
6:40 pm - 7:10 amBOS-LHR
31h 30m1 stop
United Airlines Logo
6:50 am - 5:16 pmLHR-BOS
15h 26m2 stops
$482United Airlines
Find Deal
Do, Nov 6 - Do, Nov 13
United Airlines Logo
3:40 pm - 7:10 amBOS-LHR
10h 30m1 stop
United Airlines Logo
1:45 pm - 8:20 pmLHR-BOS
11h 35m1 stop
$497United Airlines
Find Deal
Fr, Okt 24 - So, Nov 2
Delta Logo
8:15 pm - 8:05 amBOS-LHR
6h 50mnonstop
Delta Logo
5:20 am - 1:40 pmLHR-BOS
12h 20m1 stop
$507Delta
Find Deal
Mi, Nov 12 - So, Nov 16
Delta Logo
8:00 pm - 7:50 amBOS-LHR
6h 50mnonstop
Delta Logo
6:30 am - 1:20 pmLHR-BOS
11h 50m1 stop
$508Delta
Find Deal
Mi, Dez 3 - Fr, Dez 12
British Airways Logo
6:55 pm - 6:30 amBOS-LHR
6h 35mnonstop
British Airways Logo
11:40 am - 2:20 pmLHR-BOS
7h 40mnonstop
$510British Airways
Find Deal
So, Jan 4 - Mo, Jan 19
British Airways Logo
7:30 am - 7:00 pmBOS-LHR
6h 30mnonstop
British Airways Logo
5:05 pm - 7:45 pmLHR-BOS
7h 40mnonstop
$518British Airways
Find Deal
Mi, Dez 31 - Fr, Jan 30
Iberia Logo
8:00 am - 6:50 amSFO-LHR
14h 50m1 stop
Iberia Logo
11:45 am - 3:00 pmLHR-SFO
11h 15mnonstop
$584Iberia
Find Deal
Mi, Jan 28 - Do, Feb 12
Iberia Logo
6:20 pm - 6:30 amIAD-LHR
7h 10mnonstop
Iberia Logo
12:10 pm - 3:35 pmLHR-IAD
8h 25mnonstop
$587Iberia
Find Deal
Booking Insights

KAYAK's insights & trends for flights to London

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

What is the cheapest flight to London?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the lowest price for a flight to London was $135 for a one-way ticket from New York and $463 for a round-trip. The most popular route searched for by our users was for flights from Boston to London and the best round-trip deal found in the last 3 days was $473.

How much is a flight to London?

The average and cheapest price for all round-trip flights to London from each origin found by users searching on KAYAK in the last month.

On average, a flight to London costs $582. The cheapest price found on KAYAK in the last 2 weeks cost $99 and departed from New York John F Kennedy Intl Airport. The most popular routes on KAYAK are Los Angeles to London which costs $716 on average, and New York to London, which costs $531 on average.

See prices from:

What is the cheapest month to fly to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to London is January, where tickets cost $539 on average for one-way flights. On the other hand, the most expensive months are June and December, where the average cost of tickets from the United States is $799 and $723 respectively. For return trips, the best month to travel is January with an average price of $413.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From New York John F Kennedy Intl Airport $202 one-way - $453 round-trip, from Los Angeles $303 one-way - $607 round-trip, from St. Louis $418 one-way - $597 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 50 days before departure.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Southend Airport, with an average flight price of $108.

Expert advice

Expert advice for your flight 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
British Airways

Consider premium economy for more space and peace on long flights, with wider seats and extra legroom.


BA's premium economy offers seven inches more legroom, ideal for taller passengers on long flights.

Delta

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


Delta's Premium Select offers 38-inch pitch, 19-inch width, and memory foam pillows for added comfort.

Read more about Deltaby Stefanie Waldek
United Airlines

United's Polaris Lounge offers a luxurious experience with restaurants and less crowding for Polaris passengers.


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

Iberia

Iberia's Business class offers roomy seating with all-aisle access and quality in-flight dining.


Iberia's Premium Economy provides wider seats, adjustable headrests, and footrests for long-haul comfort.

Read more about Iberiaby Marisa Garcia
Virgin Atlantic

Virgin's Upper Class offers fully flat beds, exclusive lounges, and personalized service for a luxurious experience.


Virgin's Premium Economy offers wider seats, more legroom, and enhanced meal service for added comfort.

American Airlines

AA's Flagship Lounges offer upgraded seating, meals, and cocktail service for qualifying passengers.


AA's Premium Economy offers upgraded seats, meals, and amenity kits on long international flights.

Airports
LCY

City Airport is the closest to central London, with a 30-minute DLR ride costing around $5.

Read more about LCYby Duncan Madden
LTN

Luton offers the Luton Express to St Pancras in 32 minutes, including the DART transfer.

Read more about LTNby Duncan Madden
LHR

Heathrow offers the Heathrow Express to Paddington in 15 minutes, but it's pricey.

Read more about LHRby Duncan Madden
STN

Stansted offers the Stansted Express to Liverpool Street in about 50 minutes.

Read more about STNby Duncan Madden
SEN

Southend Airport offers a Greater Anglia train to London Liverpool Street in 52 minutes.

Read more about SENby Duncan Madden
LGW

Gatwick offers the Gatwick Express to London Victoria in 30 minutes, or cheaper Thameslink trains.

Read more about LGWby Duncan Madden
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways, LCY, LTN, LHR, STN, SEN and LGW

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
Stefanie Waldek

Stefanie Waldek

Expert on Delta and United Airlines

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
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
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Good to know - Book Cheap London Plane Tickets

Low seasonJanuary
Cheapest flight$135
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from New York John F Kennedy Airport to London Gatwick Airport

When to book flights to London

Are your dates flexible? Find out the best times to travel 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. The information is for flights to London based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

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

Insights shared by verified travelers who flew to London 
GeraldFlew with Virgin AtlanticSFO-LHRJun 2025
Virgin Atlantic uses terminal 3. Much faster clearing customs than terminal 5
Verified travelerFlew with American AirlinesPIT-LHRJun 2025
Make sure you do not need the transit visa.
Verified travelerFlew with British AirwaysORD-LHRJun 2025
Get a wheel chair if you have difficulty walking
Verified travelerFlew with British AirwaysEWR-LHRJun 2025
Pay for your bags at time of arrival and not through a third party site, they will rip you off!
Verified travelerFlew with British AirwaysIAH-LHRMay 2025
Heathrow has good signage. There are lots of people going to the same terminal waiting for the train. Be patient and when you have connecting flights choose a 2-hour layover.
LisaFlew with British AirwaysPHL-LHRMay 2025
Make sure you have enough time in London if you have a transfer flight. I would recommend at least 2 hours.
Verified travelerFlew with British AirwaysEWR-LHRApr 2025
Be ready for checking luggage and going through security. We did and sailed right through.
Verified travelerFlew with IberiaORD-LHRMay 2025
Get to the airport early so you’re relaxed. Con yourself into believing it’s bedtime and try to sleep so that you can keep going all day when you get there. If you can afford more comfy seats it might be worth it - though I always have the cheap ones so I can’t say for sure. Try very hard not to. sit in the middle. I’m small and the guy next to me played games all night and didn’t care that he continually ( with every move) jabbed me with his arm. This was my first flight with Cheap Flights and it was far less convenient than other times I’ve flown overseas.
RadicalFlew with American AirlinesPHL-LHRMay 2025
Don’t put everything in your gate check bags. Make sure you have clothes in your carry on
Verified travelerFlew with British AirwaysSEA-LHRApr 2025
Make sure you have plenty of time between flights if you are delayed.
Verified travelerFlew with IberiaDFW-LHRMay 2025
Take a pillow you can sleep on and rest.
JamesFlew with American AirlinesIAH-LHRApr 2025
Try to avoid Heathrow! Not the most convenient to get into London unless you have a driver. Also, Heathrow needs better signs on where to go to exit and better wifi for foreign travelers.
TressaFlew with LufthansaDEN-LHRDec 2024
Make your layover longer because you will need it for all the walking at Heathrow
DinaFlew with United AirlinesORD-LHRJan 2025
Anticipate delays, prepare for long walks through Heathrow to baggage claim or for connections.
Verified travelerFlew with British AirwaysPHL-LHROct 2024
Eat well before boarding if you’re a picky eater.
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.
EllenFlew with British AirwaysIAD-LHROct 2024
Do not check your bag if at all possible, especially if you have a connecting flight. Your bag will not make it.
RachelFlew with American AirlinesJFK-LHRNov 2024
London Heathrow is absolutely disorganized. You need 2 hours between flights at a minimum.
HashemFlew with United AirlinesEWR-LHRJul 2024
I don’t think any airline has the best boarding. Maybe American Airlines has the most comfortable and up-to-date airplanes. Always go super early to any airport leave an apple AirTag in your bag always ask Agent if your chair and or seat will be properly working
CraigFlew with United AirlinesIAD-LHRJun 2024
Get to beginning of boarding group early. Bring as little on board as possible due to small overhead bin space.
PaulFlew with British AirwaysJFK-LGWApr 2024
Bring your own wired headphones and two pin 3.5mm adapter if you want a decent sound experience from the in flight entertainment. If you're vegetarian, there will be an option in flight - no need to order through your booking before the trip.
Verified travelerFlew with British AirwaysBNA-LHRMar 2024
Be prepared to not have WiFi. The plane itself was a nice comfortable plane. The service from the crew is excellent. I always bring my own headset during a flight, so I would suggest doing that.
JordanFlew with British AirwaysJFK-LHRMay 2024
Connections can take some time to figure out at LHR. They often don’t assign connecting gate till just before boarding. So be ready for that.
Verified travelerFlew with British AirwaysLAX-LHRMar 2024
Pack your own food if you have dietary restrictions and fly other airlines if possible
MichelleFlew with British AirwaysLAX-LHRMay 2024
Make sure you separate your luggage tags from your tickets
Verified travelerFlew with British AirwaysSEA-LHRApr 2024
Bring a sack lunch -- airport food was very expensive.
VaitsaFlew with British AirwaysJFK-LHRApr 2024
Be early and pay attention to gate changes.
KariFlew with British AirwaysORD-LHRMay 2024
Always check to confirm your assistance is in system. No wheelchair waiting for me in London. Had no clue about airport or how to get around. Got lost easy
leaniepenneFlew with British AirwaysJFK-LHRJan 2024
Dress appropriate for the season and be comfortable, arrive early for checking in case there are unexpected changes or delays.
AaronFlew with American AirlinesORD-LHRDec 2023
Find a flight where you are allowed to choose your seats before the day of boarding for anything international.
Verified travelerFlew with British AirwaysBOS-LHRJan 2024
Leave plenty of time if connecting in London as most connecting flights are in a different terminal which requires a bus or tram ride. Also if you’re not at the gate 30 minutes ahead they will not let you on the plane. Apparently this is a Heathrow not airline rule.
ShaunaFlew with British AirwaysLAX-LHRDec 2023
I would suggest calling the airline to make sure that their TV screens work on the back of the seats, and if they don’t work that the entertainment option would work on your cell phones.
CurtFlew with American AirlinesBNA-LHRDec 2023
If you are connecting especially in bad weather pack spare clothes / travel sized toiletries in your carry-on.
JustinFlew with Norse Atlantic UKJFK-LGWFeb 2024
Travel in relaxed clothes. Don’t over-eat. Avoid caffeine and alcohol.

FAQs - booking London flights

  • What is the cheapest flight to London?

    In the last 3 days, the lowest price for a flight to London was $135 for a one-way ticket from New York and $463 for a round-trip. The most popular route searched for by our users was for flights from Boston to London and the best round-trip deal found in the last 3 days was $473.

  • Which London airport is closest to central London?

    Out of the 6 airports in London, London City is the nearest to the city center (8 miles). You'll travel 14 miles to reach the center of London if you land in London Heathrow Airport, 24 miles if you land in London Gatwick Airport, and 28 miles if you arrive in London Luton Airport.

  • How much is a flight to London?

    On average, a flight to London costs $582. The cheapest price found on KAYAK in the last 2 weeks cost $99 and departed from New York John F Kennedy Intl Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Wednesday where tickets can be as cheap as $768. On the other hand, the most expensive day to fly is Saturday, where prices are $873 on average.

  • How does KAYAK find such low prices on flights 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 to London.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to London?

    The cheapest time of day to fly to London is generally in the afternoon, when flights cost $500 on average. The most expensive time of day to fly to London is generally at night, which is peak travel time and where the average cost of a ticket is $670.

Top tips for finding cheap flights to London

  • Looking for a cheap flight? 25% of our users found flights on this route for $418 or less one-way and $655 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Reviews of the top 5 airlines flying to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
7.9
DeltaOverall score based on 7979 reviews
8.5Crew
7.9Comfort
7.3Food
7.9Entertainment
8.2Boarding
Airline reviews

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

6.0 GoodFernando, Oct 2025SAN - ATL
Read more Delta reviews

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

The flight was an hour and a half late departing which was inconvenient

Delay in SLC jammed us up in Chicago. Got caught up in rush hour traffic

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

The flight was great. The gate location was way to far away!!!

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

Flight was good but there are way to many announcements for credit cards etc.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Boarding was organized. Old plane. Seat fairly comfortable. Business Class much too large so you don’t receive as much attention as you should considering what you pay for the seat.

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

The crew were friendly and helpful. Iberia lost our luggage on arrival, Friday and we didn't get it until Sunday at 10:00 p.m. local Malaga time. I also paid $382.80 for seat assignments but two out out of the four were not together. Iberia mentioned that it was because the plane was delayed in Madrid before our flight began in LAX. They should compensate us half of my payment.

It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.

Easy and organized getting in and out of the flight

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.

It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.

Check in needed to be in person, not nice. Also I won’t do connections in Charlotte again because you need to go through security again and short connections become a problem

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Connection at Hethrow was horrible..We couldn't get out of the plane for an hour as they were buying people to the airport and there were not enough busses. We had 2 and half hf between flights so it was very tight. After departing plane we had to go thru security again. People with less time in between connections missed their flights

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Slough
Wembley
Hayes
Richmond
Luton
Ilford
Crawley
Guildford
Watford
Kingston upon Thames
Eastbourne
Colchester
Ipswich
St. Albans
Harrow
Hastings
Worthing
Bedford
Maidenhead

Everything you need to know for your flight to London

Flights with popular airlines flying to London

Flights from the other most popular airlines that fly from the United States to London according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.