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Cheap flights from London to Southeast Asia from ₹ 35,966

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
9 Feb — 16 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Southeast Asia

Keep the following information in mind while searching for London to Southeast Asia flight deals. Data was last updated 10 January 2026.

Round-trip from

₹ 56,157

One-way from

₹ 35,966

Popular in

July

Cheapest in

May

Average price

₹ 74,005
Air India
  • Air India
  • 9/3-16/3
  • 2 total stops
  • 45h 55m total
  • London to Southeast Asia
Search Deals
26/2
  • 26/2
  • 1 total stop
  • 21h 05m total
  • London to Southeast Asia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (₹ 965,446 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 203,851 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from London to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from London to Southeast Asia
Explore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 January 2026.

Mon 9/321:05LHR - IXZ
1 stop30h 20mAir India
Mon 16/309:25IXZ - LHR
1 stop15h 35mAir India
Deal found 10/1₹ 56,157
Sat 31/108:25LHR - SIN
2 stops20h 30mOman Air
Sat 7/221:20SIN - LHR
2 stops40h 35mOman Air
Deal found 10/1₹ 57,780
Thu 5/320:05LHR - SIN
1 stop37h 55mSWISS
Tue 17/300:05SIN - LHR
1 stop16h 00mSWISS
Deal found 9/1₹ 58,501
Tue 3/1111:45LHR - SIN
1 stop20h 30mMultiple Airlines
Tue 24/1110:55SIN - LHR
1 stop18h 30mMultiple Airlines
Deal found 10/1₹ 59,042
Sat 6/618:10LHR - SIN
1 stop17h 20mFinnair
Tue 16/621:35SIN - LHR
1 stop24h 35mFinnair
Deal found 10/1₹ 59,132
Fri 24/417:50LHR - SIN
1 stop15h 45mLufthansa
Sun 17/523:40SIN - LHR
1 stop16h 00mLufthansa
Deal found 9/1₹ 59,312
Fri 13/220:05LHR - SIN
2 stops31h 50mOman Air
Sat 21/221:20SIN - LHR
2 stops40h 35mOman Air
Deal found 10/1₹ 59,402
Mon 16/308:25LHR - SIN
2 stops20h 30mOman Air
Mon 30/311:05SIN - LHR
2 stops39h 05mOman Air
Deal found 10/1₹ 59,492
Wed 25/320:05LHR - SIN
2 stops32h 50mOman Air
Wed 8/411:05SIN - LHR
2 stops39h 05mOman Air
Deal found 10/1₹ 59,673
Thu 11/614:45LHR - SIN
1 stop17h 55mMultiple Airlines
Thu 18/622:20SIN - LHR
1 stop25h 15mMultiple Airlines
Deal found 9/1₹ 59,853
Sun 1/221:50LHR - SIN
1 stop34h 10mGulf Air
Tue 24/220:00SIN - LHR
1 stop18h 35mGulf Air
Deal found 10/1₹ 60,123
Tue 27/121:50LHR - SIN
1 stop30h 40mGulf Air
Thu 5/220:00SIN - LHR
1 stop18h 35mGulf Air
Deal found 9/1₹ 60,214

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 10 January 2026.
Use the filters below to find and compare flights from London to Southeast Asia that are best for you.

Fly from

London

Fly to

Southeast Asia

Route

Depart

Return

Price

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Mon 9/3

21:05-08:55

1 stop30h 20m

Port Blair

Mon 16/3

09:25-19:30

1 stop15h 35m

₹ 56,157

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 13/2

20:05-11:55

2 stops31h 50m

Singapore Changi

Sat 21/2

21:20-05:55

2 stops40h 35m

₹ 59,402

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Mon 23/2

13:30-14:25

2 stops19h 25m

Port Blair

Mon 2/3

11:30-19:30

2 stops37h 30m

₹ 60,845

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 31/5

10:00-12:20

1 stop19h 20m

Singapore Changi

Wed 10/6

20:00-06:55

1 stop17h 55m

₹ 62,467

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 8/2

21:10-12:10

1 stop31h 00m

Singapore Changi

Sun 15/2

18:30-19:10

1 stop32h 40m

₹ 64,811

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 5/3

14:25-18:00

2 stops19h 35m

Singapore Changi

Tue 17/3

00:05-13:40

2 stops21h 35m

₹ 65,622

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Fri 6/2

21:05-08:55

1 stop30h 20m

Port Blair

Fri 13/2

09:25-19:30

1 stop15h 35m

₹ 67,695

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 10/5

20:05-17:10

1 stop38h 05m

Singapore Changi

Mon 18/5

23:25-13:40

2 stops21h 15m

₹ 68,416

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 25/2

10:40-07:50

Nonstop13h 10m

Singapore Changi

Wed 4/3

09:00-15:20

Nonstop14h 20m

₹ 69,859

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 3/7

22:05-12:20

1 stop31h 15m

Singapore Changi

Mon 20/7

20:00-15:20

1 stop26h 20m

₹ 70,129

Flights are sorted by cheapest return flights first.

Deals found on 8/1

Showing 1-10 of 29 results
1
2
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Best time to book a flight from London to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Southeast Asia

What is the cheapest month to book a flight from London to Southeast Asia?

Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of ₹ 39,391). Flying from London to Southeast Asia in July is currently the most expensive (average of ₹ 58,140). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to YJX?

Find hourly flight availability from London to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Southeast Asia as you normally would.

Weekly flight availability from London to Southeast Asia

Explore weekly flight availability from London to Southeast Asia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 10 January 2026.

The most flights from LON to zzYJX are scheduled on a Tuesday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated 10 January 2026.
Get a feel of what it's like to fly with Air China from London to Southeast Asia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air China
7.2
Good
136 reviews
Check prices

Crew

7.9

Food

7.0

Comfort

7.0

Overall

7.2

Boarding

7.6

Entertainment

6.3

Reviews

1 / 5
8.0
Excellent

Anonymous,Dec 2025

BKK - TFU

It would be nice to have backseat TV or complimentary Wi-Fi.
Air China
7.2
Good
136 reviews
Air China
7.2
Good
136 reviews
Check prices

Crew

7.9

Food

7.0

Comfort

7.0

Overall

7.2

Boarding

7.6

Entertainment

6.3

Reviews

1 / 5
8.0
Excellent

Anonymous,Dec 2025

BKK - TFU

It would be nice to have backseat TV or complimentary Wi-Fi.

Related info for your journey

Find useful and relevant information for your journey from London to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Southeast Asia?

    Airlines like Air India, SWISS, and Oman Air fly from London to Southeast Asia in about 30h 20m. The time it takes to get you to your destination can typically vary by up to 7h 35m. The distance between London and Southeast Asia is about 9210 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from London to Southeast Asia?

    The top 3 most reliable airlines when flying from London to Southeast Asia are EVA Air (83%), Thai Airways (80%) and Air Canada (76%).

  • What are the cheapest flights from London to Southeast Asia?

    Looking at all options, your cheapest flight can be booked for ₹ 127,335. While the most popular route (London Heathrow - Port Blair) can be booked for ₹ 56,428 on average, our data indicates ₹ 170,991 when flying from London to Southeast Asia.

  • Can I find deals for flights from London to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on London to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Southeast Asia.

  • Can I find deals for business class flights from London to Southeast Asia?

    Yes. Cheapflights offers flight deals from London to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Southeast Asia?

    Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of ₹ 39,391). Flying from London to Southeast Asia in July is currently the most expensive (average of ₹ 58,140). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for London to Southeast Asia

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Fly with Cheapflights

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How does Cheapflights help users find flights from London to Southeast Asia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Southeast Asia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Southeast Asia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Asia from London.

Can Cheapflights find flights from London to Southeast Asia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Southeast Asia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Southeast Asia become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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