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Cheap flights from London to Vientiane from £344

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — VTE
18 May — 25 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Vientiane

Enter your travel dates to find the best prices.

Cheapest flights from London to Vientiane
Explore the most affordable flight options available from London to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2026.

Sun 7/622:10
LHR
-
VTE
2 stops27h 25m
Multiple Airlines
Sun 21/608:05
VTE
-
LHR
2 stops29h 25m
Multiple Airlines
Deal found 14/4£536
Mon 9/1110:30
LGW
-
VTE
1 stop30h 35m
China Eastern
Sun 29/1101:05
VTE
-
LGW
1 stop19h 55m
China Eastern
Deal found 18/4£587
Mon 2/1121:00
LHR
-
VTE
1 stop20h 05m
China Eastern
Mon 16/1101:05
VTE
-
LHR
1 stop23h 25m
China Eastern
Deal found 14/4£594
Mon 9/1117:00
LGW
-
VTE
1 stop24h 05m
China Eastern
Fri 20/1101:05
VTE
-
LGW
1 stop36h 25m
China Eastern
Deal found 14/4£603
Sat 7/1117:00
LGW
-
VTE
1 stop24h 05m
China Eastern
Tue 24/1101:05
VTE
-
LGW
1 stop36h 25m
China Eastern
Deal found 16/4£605
Sun 8/1117:00
LGW
-
VTE
1 stop24h 05m
China Eastern
Sat 21/1115:50
VTE
-
LGW
2 stops21h 40m
China Eastern
Deal found 16/4£611
Tue 10/1110:30
LGW
-
VTE
2 stops21h 20m
China Eastern
Thu 26/1112:20
VTE
-
LGW
3 stops32h 40m
China Eastern
Deal found 14/4£614
Mon 9/1121:00
LHR
-
VTE
1 stop20h 05m
China Eastern
Mon 30/1112:20
VTE
-
LHR
2 stops36h 10m
China Eastern
Deal found 15/4£615
Sun 14/614:40
LHR
-
VTE
2 stops25h 30m
Multiple Airlines
Mon 22/607:20
VTE
-
LHR
2 stops35h 20m
Multiple Airlines
Deal found 16/4£625
Sun 7/619:40
STN
-
VTE
2 stops34h 20m
Multiple Airlines
Sun 21/618:20
VTE
-
STN
3 stops33h 45m
Multiple Airlines
Deal found 14/4£627
Sun 8/1121:00
LHR
-
VTE
1 stop20h 05m
China Eastern
Fri 27/1112:20
VTE
-
LHR
2 stops36h 10m
China Eastern
Deal found 14/4£637
Sat 7/1121:00
LHR
-
VTE
1 stop20h 05m
China Eastern
Fri 27/1110:05
VTE
-
LHR
2 stops38h 25m
China Eastern
Deal found 16/4£639

Find flight deals from London to Vientiane

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Vientiane (VTE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 April 2026.

Round-trip from

£536

One-way from

£344

Popular in

December

Cheapest in

September

Average price

£816
7/6-21/6
  • 7/6-21/6
  • 4 total stops
  • 56h 50m total
  • London to Vientiane
Search Deals
4/6
  • 4/6
  • 2 total stops
  • 36h 20m total
  • London to Vientiane
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Vientiane 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 858,174 searches. Data last updated 18 April 2026.
Use the filters below to find and compare flights from London to Vientiane that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonVientiane

LGW - VTE

LGWVTE

London Gatwick

Thu 14/5

11:35-00:05

1 stop30h 30m

Vientiane Wattay

Mon 1/6

23:45-06:55

2 stops37h 10m

£718

LondonVientiane

STN - VTE

STNVTE

London Stansted

Thu 14/5

07:50-01:05

3 stops35h 15m

Vientiane Wattay

Mon 1/6

20:30-22:50

3 stops32h 20m

£733

LondonVientiane

LGW - VTE

LGWVTE

London Gatwick

Sun 7/6

11:35-00:05

1 stop30h 30m

Vientiane Wattay

Sun 21/6

13:45-06:40

2 stops46h 55m

£734

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 9/6

09:30-22:10

2 stops30h 40m

Vientiane Wattay

Tue 23/6

07:20-08:00

2 stops30h 40m

£739

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 1/6

09:30-12:40

2 stops21h 10m

Vientiane Wattay

Mon 15/6

13:30-06:30

2 stops23h 00m

£791

LondonVientiane

LGW - VTE

LGWVTE

London Gatwick

Thu 14/5

11:35-00:05

1 stop30h 30m

Vientiane Wattay

Mon 1/6

15:50-15:00

3 stops53h 10m

£797

LondonVientiane

LGW - VTE

LGWVTE

London Gatwick

Mon 1/6

11:35-16:45

2 stops23h 10m

Vientiane Wattay

Mon 8/6

09:45-15:00

3 stops35h 15m

£806

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 1/6

18:55-10:35

1 stop33h 40m

Vientiane Wattay

Mon 15/6

11:20-17:50

2 stops36h 30m

£816

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 14/6

14:40-00:25

3 stops27h 45m

Vientiane Wattay

Mon 22/6

15:50-12:40

2 stops26h 50m

£822

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 1/6

18:55-19:35

3 stops42h 40m

Vientiane Wattay

Mon 8/6

11:20-17:50

2 stops36h 30m

£831

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 49 resultsSorted by cheapest first
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Best time to book a flight from London to Vientiane

Have a flexible travel schedule? Discover the best time to fly to Vientiane 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 Vientiane

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

Currently, September is the cheapest month in which you can book a flight from London to Vientiane (average of £386). Flying from London to Vientiane in August is currently the most expensive (average of £716). 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.

How much does it cost for a return flight from London to Vientiane?

What’s the top stopover airport for flights from London to Vientiane?

Share of one-stop return flights from London to Vientiane chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Bangkok (BKK) – chosen by Cheapflights users on 69% of one-stop itineraries from London to Vientiane on Cheapflights.

What’s the cheapest stopover airport for flights from London to Vientiane?

Average return fare for one-stop flights from London to Vientiane, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Guangzhou (CAN) is the most affordable one-stop option, with an average return flight price of £571.

What’s the fastest stopover option from London to Vientiane?

Shortest average travel time for one-stop one-way flights from London to Vientiane, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 15h 57m.

Which airport typically offers the quickest stopover for flights from London to Vientiane?

Average stopover duration for one-stop one-way flights from London to Vientiane, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 3h 10m.

Reviews of airlines servicing Vientiane

Get insights into the airlines that provide service to Vientiane. 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 Vientiane. Reviews last updated 18 April 2026.
Get a feel of what it's like to fly with Thai Airways,China Southern, andChina Eastern from London to Vientiane by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.9
Good
398 reviews
Check prices

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.4

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.9
Good
398 reviews
Thai Airways
7.9
Good
398 reviews
Check prices

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.4

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
China Southern
7.4
Good
149 reviews
Thai Airways
7.9
Good
398 reviews
Check prices

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.4

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
China Eastern
7.3
Good
207 reviews
Thai Airways
7.9
Good
398 reviews
Check prices

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.4

Boarding

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Related info for your journey

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

  • What airport do you fly into for flights to Vientiane from London?

    Located just 2.8 mi from the city center, Vientiane Wattay is the airport most travelers will use when flying to Vientiane from London. Booking flights from London to Wattay (VTE) should be relatively easy as there are 0 daily inbound flights from London from 3 different airlines.

  • How long is the flight from London to Vientiane?

    Airlines like China Eastern and Vietnam Airlines fly from London to Vientiane in about 30h 30m. The time it takes to get you to your destination can typically vary by up to 3h 10m. The distance between London and Vientiane is about 5782 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London to Vientiane round-trip?

    According to our current data, China Southern (£430), China Eastern (£469), and Thai Airways (£817) offers the cheapest pricing from London to Vientiane. China Southern is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from London to Vientiane?

    When deciding which route to take from London to Vientiane consider London Heathrow - Vientiane Wattay, London Gatwick - Vientiane Wattay or London Stansted - Vientiane Wattay as they are the most popular.

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

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

  • How can I find direct flights from London to Vientiane?

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

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

    Yes. Cheapflights offers flight deals from London to Vientiane 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 Vientiane?

    Currently, September is the cheapest month in which you can book a flight from London to Vientiane (average of £386). Flying from London to Vientiane in August is currently the most expensive (average of £716). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from London to Vientiane

Discover the top 3 airlines that operate flights from London to Vientiane. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£430Average£524FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£469Average£568FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£817Average£903FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Vientiane?

Cheapflights helps you search for flights from London to Vientiane via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Vientiane for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Vientiane flexibly with Cheapflights today.

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

Yes! Start tracking prices for London to Vientiane flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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