$249 Cheap Flights from Japan to London
One-way
Departing from
Japan
Going to
London, Canada
London (LHR)
United Kingdom • February, 2026
89% AI deal score
$870 $249
London (LHR)
United Kingdom • January, 2026
89% AI deal score
$870 $259
London (STN)
United Kingdom • March, 2026
89% AI deal score
$1,725 $833
Top Cheap Flight Deals from Japan to London
Recent round-trip flight deals to London
Sat, Dec 20 - Sun, Jan 11
Cheapest
Osaka (KIX) - London (LGW)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
London (LGW) - Osaka (KIX)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
$1,025
$659
-$366
36%
Tue, Dec 9 - Wed, Dec 31
Osaka (KIX) - London (LGW)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
London (LGW) - Osaka (KIX)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
$1,025
$660
-$365
36%
Thu, Dec 25 - Thu, Jan 15
Osaka (KIX) - London (LGW)
China Eastern Airlines airlines • 2 stops • Qingdao (TAO), Shanghai (PVG)
London (LGW) - Osaka (KIX)
Dalian Airlines airlines • 1 stop • Shanghai (PVG)
$1,025
$699
-$326
32%
Thu, Dec 18 - Sat, Jan 10
Tokyo (NRT) - London (LGW)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
London (LGW) - Tokyo (NRT)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
$448
$700
+$252
56%
Mon, Dec 15 - Tue, Jan 13
Tokyo (NRT) - London (LGW)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
London (LGW) - Tokyo (NRT)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
$448
$702
+$254
57%
Sun, Dec 14 - Sat, Jan 10
Osaka (KIX) - London (LGW)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
London (LGW) - Osaka (KIX)
China Eastern Airlines airlines • 1 stop • Shanghai (PVG)
$1,025
$707
-$318
31%
The cheapest time to fly to London
Ready to jet to London on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Facts About Flights from Japan to London
To help you plan your journey, here are some quick London flight facts and tips.
London city airports
London International Airport (YXU) serves the city of London, Ontario, Canada, not London, UK. It offers a range of domestic and international flights, connecting passengers to destinations across Canada, the US, and select sun destinations. While smaller than major international hubs, YXU provides a convenient and less congested travel experience for those in southwestern Ontario. Travelers can find various airlines operating from YXU, including Air Canada, WestJet and others, with seasonal and charter flights also available. The airport features amenities such as parking, car rentals, food and beverage options, and free Wi-Fi to ensure a comfortable journey.
Pro tip: search “London (Any)” to see fares to all London airports – sometimes one is cheaper than the others on your dates.
Insights for flights to London
Cheapest airport
London Stansted (STN)
London Stansted (STN) is often the cheapest airport to fly into London. While it's a bit further out, its IATA code is STN. It is known for serving numerous budget airlines, making it a prime gateway for affordable travel to London. Plus, with good transport links, getting into the city is a breeze!
Nonstop vs. 1-stop
100+ cities
As a major hub, London connects a huge number of destinations with popular routes including New York, Dubai, and Hong Kong - so many possibilities!
Number of airlines
100+ airlines
London is a global travel hub served by over 100 airlines, including popular full-service carriers like British Airways and Virgin Atlantic, as well as budget-friendly options such as easyJet and Ryanair.
LHR Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
LHR airport insights
Best days to catch a deal
Sat, Wed
Based on the provided data, Saturday is the day when the most cheap deals are found for Heathrow airport. Wednesday also has a high count, making it another potentially good day to search for deals.
Avg. deal survival time
14.7 hours
Deals from Heathrow airport survive for an average of 14.7 hours. This means you need to be quick to book any deals you find!
Rare deal frequency
17 deals
We've discovered 17 rare flight deals for Heathrow Airport in the last month alone. These rare deals, identified with an AI Deal Score of 90 or higher, typically include mistake fares, special promotions, or ultra-discounts.
Average price drop
-79%
The average price drop for flights departing from Heathrow Airport is a significant 79.0%. This indicates a high potential for savings when booking flights from this airport.
Next 4 weeks: deal forecast
Heathrow Forecast Next Month
The forecast for Heathrow next month shows stable prices with a slight upward trend expected due to the holiday season. Travelers should book soon to avoid potential price increases as demand rises closer to the end of the year.
Top 5 biggest price drops (last 3 months)
Found on December 7
Mexico City - LHR
$21,000 → $1,218
94%
Found on December 9
Osijek - LHR
$1,010 → $117
88%
Found on December 8
Siem Reap - LHR
$2,225 → $279
87%
Found on December 4
Hilo - LHR
$2,125 → $320
85%
Found on December 7
Melbourne - LHR
$3,675 → $547
85%
Check these nearby airports too
Looking for more options? These airports near LHR sometimes drop rare deals too:
Gatwick (LGW)
~8 rare deals/month
Luton (LTN)
~11 rare deals/month
London Stansted (STN)
~3 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially LGW and LTN for long-haul deal surprises.
When Is the Best Time to Fly from Japan to London
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to London:
Cheapest month
January
Cheapest month
January is often the cheapest month to fly to London City. The city is quieter after the holiday rush, and you can snag some amazing deals on flights and accommodations. Just be prepared for cooler weather and shorter daylight hours, but think of all the cozy pubs you can explore!
Best day to book
Tuesday
Best day to book
Tuesday tends to be the best day to book flights to London City. Airlines often release deals early in the week to fill up seats. Keep an eye out for flash sales and promotions that can help you save even more on your trip. Booking mid-week could really pay off!
Cheapest days to fly
Wednesday
Cheapest days to fly
Flying on a Wednesday is usually the cheapest option for London City. Mid-week flights are less popular with business travelers, bringing the prices down. Plus, arriving mid-week gives you a head start on exploring before the weekend crowds arrive. Score!
Advance booking sweet spot
2 months
Advance booking sweet spot
Booking around two months in advance is the sweet spot for flights to London City. This timeframe often balances availability and affordability. Booking too early might not capture the best deals, while waiting too long could lead to higher prices. Planning ahead pays off handsomely.
London Airports & Ground Transportation
One big question for travelers is which London airport to fly into. Here’s a quick guide to London’s airports and how to get to the city from each:
London Heathrow Airport (LHR)
As the UK's largest airport, Heathrow is a major international hub with flights to destinations worldwide. You'll find a vast array of shops, restaurants, and lounges to keep you entertained during your travels. Located about 15 miles west of central London, it is very well connected to the city. The Heathrow Express train offers a speedy 15-minute ride to Paddington Station, while the London Underground's Piccadilly line provides a more budget-friendly option. Don't be intimidated by its size - helpful staff and clear signage will guide you.
Tip: Download the Heathrow Airport app for live flight updates and interactive maps to navigate the terminals with ease.
London Gatwick Airport (LGW)
Gatwick Airport, located south of London, is a bustling airport serving numerous European and international destinations. It offers a wide selection of shops, restaurants, and services to accommodate every traveler's needs. Getting to and from London is a breeze, with the Gatwick Express train whisking you to Victoria Station in just 30 minutes. Additionally, Southern and Thameslink trains provide regular services to various other London stations. Be sure to check which terminal your flight departs from to avoid any last-minute dashes.
What to Do in London
London isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in London, organized by interest:
Sightseeing & landmarks
Get ready to explore iconic landmarks like Buckingham Palace, the Tower of London, and the London Eye! Don't forget to snap a selfie with Big Ben and wander through historic Trafalgar Square to soak in the city's rich history and vibrant atmosphere.
Arts & culture
Immerse yourself in London's thriving arts scene by visiting world-class museums such as the British Museum and the National Gallery. Catch a mesmerizing performance in the West End or explore cutting-edge contemporary art at the Tate Modern for an unforgettable cultural experience!
Food & nightlife
Embark on a culinary adventure through London's diverse food scene, from traditional pubs to Michelin-starred restaurants. As the sun sets, dive into the city's electric nightlife with trendy cocktail bars, live music venues, and vibrant clubs that cater to every taste.
Shopping & fashion
Indulge in retail therapy at iconic shopping destinations like Oxford Street, Harrods, and Selfridges, where you'll find everything from high-street fashion to luxury brands. Explore the quirky boutiques and vintage shops in Shoreditch or Notting Hill for unique finds and stylish treasures.
Nearby getaways
Escape the city bustle with a day trip to charming destinations like Windsor Castle, the historic university town of Cambridge, or the picturesque Cotswolds. Discover the beauty of the English countryside and enjoy a refreshing break from London's urban landscape.
Events in London This Month
crepe city 30 november
Crepe City London is an unmissable sneaker and streetwear event taking place on Sunday, July 6th. Immerse yourself in a world of exclusive footwear and urban fashion.
kwes e
Kwes e, a rapper and producer from Canterbury, blends contemporary hip-hop, afrobeat, and nocturnal electronica, creating a distinctive sound characterized by introspection and rhythm.
christmas lights in the city 10k tour - merrily medium
The Christmas Lights in the City 10k Tour - Merrily Medium is a 10K running event held in London, Greater London, starting on Saturday, November 22, 2025.
jacinda ardern
Jacinda Ardern, the former Prime Minister of New Zealand, shares her story and inspires a new generation of leaders by redefining leadership and prioritizing kindness.
London Weather
Weather in London
Wed, Dec 10
0%
13° 7°
0%
Thu, Dec 11
Frequently Asked Questions About Flights to London
Pro Tips for Finding Cheap Flights to London
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on London flights:
Be Flexible with Your Dates: Flying mid-week or during the shoulder season (spring/fall) can save you a bundle. Airlines often lower prices to fill seats during less popular travel times, so play around with your dates!
Consider Alternative Airports: London has multiple airports (Heathrow, Gatwick, Stansted, Luton, City). Flying into a less central airport might mean a longer commute into the city, but the savings can be significant. Weigh your options!
