$399 Find Cheap Flights from Japan to the United Kingdom - Compare and Save

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KAYAK's insights & trends for flights to the United Kingdom

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

What is the cheapest flight to the United Kingdom?

The cheapest ticket to the United Kingdom from Japan found in the last 5 days was to London Heathrow Airport, at $1,396 round-trip. The most popular route is Tokyo Haneda Airport (HND) to London Heathrow Airport (LHR) and the cheapest round-trip airline ticket found on this route in the last 5 days was $1,396.

What is the cheapest month to fly from Japan to the United Kingdom?

The cheapest month for flights from Japan to the United Kingdom is June, when tickets cost $528 (return) on average. On the other hand, the most expensive months are January and April, when the average cost of round-trip tickets is $730 and $705 respectively.

Which is the cheapest airport to fly into in the United Kingdom?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United Kingdom is London Heathrow Airport (LHR), with an average flight price of $969.

Good to know

Low season

January
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 8% lower on average.

FAQs for booking flights from Japan to the United Kingdom

  • How does KAYAK find such low prices on flights from Japan to the United Kingdom?

    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 Japan to the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Japan to the United Kingdom 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 Japan to the United Kingdom?

    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 from Japan to the United Kingdom 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 from Japan to the United Kingdom?

    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 from Japan to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to the United Kingdom?

    Based on KAYAK data, the cheapest day to fly to the United Kingdom is Friday where round-trip tickets can be as cheap as $1,494. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $2,012 on average.

Reviews of the top 5 airlines serving from Japan to the United Kingdom

 
Need help choosing which airline to fly with from Japan to the United Kingdom? 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.
8.1
Asiana AirlinesOverall score based on 570 reviews
7.6Entertainment
8.0Comfort
8.3Boarding
8.4Crew
8.0Food
Airline reviews

I was very surprised that a meal was given on such a relatively short flight. the meal was FANTASTIC. The crew were also very attentive to our specific needs and we would be happy to fly and recommend your airline to our friends.

10.0 ExcellentAnonymous, Jul 2026
Read more Asiana Airlines reviews

I was very surprised that a meal was given on such a relatively short flight. the meal was FANTASTIC. The crew were also very attentive to our specific needs and we would be happy to fly and recommend your airline to our friends.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

Love flying Asiana. Been using it for over a decade now.

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Typical Asian airline - flight attendants like robots - start food orders at first row and get to the last row right aisle last - no food selections left. 30 minutes before landing demanding everyone put seats back into upright position, window shades open and God forbid you might have to use the restroom a full 30 minutes left into a 1 hour 45 minute flight. At least the flight was cheap - but that’s the best I can say about it.

Everything is good, the only issue is the aircraft need to be upgraded

Ok, the flight was late and the plane was old. The check in crew in Narita were amazing however.

Flight attendants rude, they disappear for almost 3 hours not doing rounds to see what people needed. The laboratories were full of empty water cups, because they never come back to collect them.

The crew was amazing and really nice. The OS on the entertainment system could use an update, though. It felt old and outdated but had anything you'd need to keep busy. I usually never use it anyways, but that did stand out.

Excellent staff excellent service! The staff was very good at providing beverages and food throughout the flight. I had a sore throat and they gave me a lot of hot tea, which I really appreciate. I had a problem with my screen where the movie kept restarting. Overall, a great flight and I like China Southern Airlines

It was good. Just a very long stay over in China to get the second leg to London

Poor seats. Not helpful crew. The food was awful.overall very very bad experience. Traveled with the family of 5

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

The connection between LA and Atlanta was too much stress

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

We were diverted to Chengdu, because of bad weather and finally made it to Chong King about 7 hours later

Flight canceled, but they didn't notify me. They arranged a nearby hotel and 4 meals for me to stay for 24 hours before I could board.

During flight, some passengers perform stomping leg exercises which disturb the comfort (I.e. sleep) of other passengers.

It we as a pleasant flight. Good helpful and happy cabin crew. Food was okay, not to write home about. Drinks good. Entertainment okay.. Seat space good , comfort acceptable

Weren’t even given earphones to use the entertainment system

The meals were not the greatest and lacking of appetite but everything else was spot on

On time. Friendly and helpful flight attendants. The plane was clean. Having a wine available would have been nice.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

Communication between the captain/crew and the passengers needs to be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

CTU-KMG-CNX with 1.5 hr connection at KMG. Doable but just barely bc immigration exit from China is at the last flight leg, here: KMG to CNX. We hauled out of the domestic terminal to reenter at the international departures (luggage checked thru to CNX thankfully). Immigration had only two agents, even though KMG gets a HUGE number of foreigners. It took forever for such a shot line. Then security also took a while, so I just just made the connection. Recommend if you exit China with domestic international transfer, plan for 2+ hrs to avoid a heart attack. Airline personnel don’t suffer if you miss the flight, you do. Plan accordingly.

Small plane with only two lavatories at the back. You must have a good plan to use it before or after the meal, if you make a bad decision, you will end up with standing in front of the toilet for a while till the food carts empty. The good thing is even there’s a slightly delayed, the plane is still arriving on time which is superb!!

good flight. food is only so so. I actually did not eat the snack. it does not look too good on the passenger next to me.

Flight was on time. My group paid for seat’s so that us four can be seated next to each other. We all got separated. We all got middle seats, which made it more difficult to be able to get up and stretch or use the restroom. We tried talking to the employees at China Eastern and they were of no help. We will not be taking this flight or recommend this route to others in the future. Also I will be contacting customer service on how I can get our money back for paying for assigned seats.

Excellent experience however older aeroplanes used by China Eastern Airlines.

The crew were excellent, service amazing, blankets and pillow good, cabin temperature perfect, the flight on time, food was unusual selection however plentiful, price for tickets unbeatable through Kayak. Older aeroplanes used by China Eastern was the only down side.

Good airline for the price. The Air stewardess are great, nothing is to much trouble. Will use again.

Cheapest option from Gatwick £400 cheaper than Emirates and Qatar. Entertainment no where near as good as Emirates and Qatar, but saved £400 so all good.

The flight was cancelled without any reason. But the next flight to Shanghai has to be cancelled to pay penalty.

The landings were smooth . Being unable to check-in online was terribly stressful and the queue at Haneda exemely long. We paid extra for window seats and did not get them.

My baggage (1) didn’t arrive with me. I am waiting for it.

Level of cabin service was poor for what i'd expect from Business Class. had to go to galley to ask for beverage or refills. Final outbound service wasn't fully served because service was started late, as a result of the crew taking a break later than planned during flight and having compressed time before landing (no clear how this poor planning was possible on a 10 hour flight). Seat comfort was poor compared to Emerates and Ithiad

This is just for first leg, second leg from London Heathrow to Delhi was the worst.

The seats often do not function - in the premium economy the seat does not lean back. The passenger in front of me decided to come and sit next to me on his own volition because his seat was not leaning back.

The sitting for business class was very poor. It was cramped. Some of the seats were defective and could not be kept perfectly upright. If the passenger in front reclined, the passenger behind was trapped in a narrow space. I would consider other airways in the future.

Disappointed as we discovered when checking in at the airport 6hrs before the flight was scheduled, that we had been offloaded onto standby after having purchased these tickets months in advance. We had tried checking in online the night before but were unable to. BA had obviously over sold the seats, and we were told they couldn't confirm we could get on the flight until check in closed. Eventually we did get on but were not seated together. That was a bit of stress we just didn't need.

My flight from Athens to London was delayed 30 minutes. I got automatically booked on a different flight before the plane landed. However, I never received any notification about the new booking so I had zero knowledge about the flight number or even where to go. Checking in: it was absolutely impossible to check in for my flight online. I literally had to call British Airways to check in for my flight and select a seat. It was very inconvenient and a bit stressful.

I ordered a drink, but never got it. I ask what type of drinks they had and they could not tell me and there was not printed copy that I could find that is usually on most airplanes. They served dinner and never walk back to see if any need a drink or anything afterwards until they served the snack just before landing.

Check-in wait time was quite long (understaffed for the volume of customers), but energy and hospitality of flight crew was great!

I really enjoyed the flight…and food and the hospitality but didn’t get the food I requested for.

More options for your flight to the United Kingdom

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