How long is the flight from London to Vientiane?

Airlines like China Southern, China Eastern, and Vietnam Airlines fly from London to Vientiane in about 17h 40m. The time it takes to get you to your destination can typically vary by up to 12h 55m. 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 Eastern (£470), and Thai Airways (£860) offers the cheapest pricing from London to Vientiane. China Eastern is priced at 42% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in Vientiane ranges from 10.0 - 120.0 inches per month. July is typically the wettest month, when rainfall can reach 120.0 mm. January is typically the driest time to visit Vientiane when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Vientiane, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 22.0 C).

What are the most popular routes from London to Vientiane?

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

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

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

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 2 different airlines.

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.

£342+ Cheap Flights from London to Vientiane

Cheap flight deals from London to Vientiane

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 3 September 2026.

Fri 2/1011:00 -

1 stop17h 30m

Sun 11/1011:30 -

1 stop25h 00m

Deal found 30/8£472

Thu 22/1011:10 -

1 stop17h 20m

Wed 4/1116:25 -

1 stop21h 05m

Deal found 31/8£477

Wed 25/1109:50 -

1 stop17h 40m

Thu 3/1211:30 -

1 stop26h 00m

Deal found 31/8£479

Sat 26/911:00 -

1 stop17h 30m

Fri 2/1011:30 -

1 stop25h 00m

Deal found 1/9£500

Mon 26/1022:00 -

1 stop34h 05m

Mon 9/1116:25 -

1 stop33h 10m

Deal found 30/8£501

Sat 26/922:10 -

1 stop30h 20m

Fri 2/1015:50 -

1 stop33h 30m

Deal found 1/9£528

Mon 9/1122:00 -

1 stop29h 30m

Mon 30/1116:25 -

1 stop33h 10m

Deal found 2/9£539

Sat 26/912:35 -

2 stops27h 35m

Fri 2/1007:20 -

2 stops29h 15m

Deal found 1/9£542

Mon 9/1117:00 -

1 stop24h 05m

Sun 29/1101:05 -

1 stop36h 25m

Deal found 2/9£588

Wed 25/1119:45 -

1 stop17h 50m

Thu 3/1221:40 -

2 stops27h 05m

Deal found 31/8£595

Sun 27/922:00 -

1 stop20h 05m

Fri 2/1001:05 -

1 stop24h 05m

Deal found 31/8£596

Mon 26/1021:00 -

2 stops31h 20m

Sun 8/1101:05 -

1 stop23h 25m

Deal found 1/9£617

Best flights from London to Vientiane
Discover carefully curated flight deals from London to Vientiane that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Wed 25/1109:50 -

1 stop17h 40m

Thu 3/1211:30 -

1 stop26h 00m

Deal found 31/8£479

Mon 9/1110:30 -

1 stop30h 35m

Mon 30/1116:50 -

3 stops52h 10m

Deal found 1/9£588

Sat 26/918:10 -

1 stop34h 20m

Fri 2/1020:10 -

2 stops29h 00m

Deal found 1/9£663

Thu 24/918:55 -

2 stops18h 40m

Mon 28/911:20 -

2 stops36h 30m

Deal found 31/8£788

Sat 26/911:00 -

1 stop17h 30m

Fri 2/1011:30 -

1 stop25h 00m

Deal found 1/9£500

Mon 9/1121:00 -

2 stops29h 05m

Sun 29/1101:05 -

1 stop23h 25m

Deal found 29/8£619

Tue 13/1011:35 -

2 stops23h 10m

Tue 20/1013:45 -

3 stops22h 55m

Deal found 28/8£682

Fri 25/911:00 -

1 stop17h 30m

Tue 29/915:50 -

1 stop28h 40m

Deal found 28/8£689

Mon 9/1108:25 -

2 stops28h 20m

Mon 30/1120:30 -

2 stops28h 55m

Deal found 29/8£774

Mon 9/1111:00 -

1 stop16h 45m

Mon 30/1111:35 -

2 stops26h 40m

Deal found 30/8£797

Sat 26/921:20 -

3 stops29h 25m

Fri 2/1017:45 -

2 stops30h 55m

Deal found 1/9£691

Thu 15/1010:00 -

3 stops26h 25m

Thu 22/1015:50 -

2 stops29h 10m

Deal found 31/8£795

Wed 30/918:55 -

1 stop33h 40m

Sun 4/1020:20 -

1 stop26h 45m

Deal found 1/9£808

Thu 22/1018:00 -

2 stops19h 10m

Wed 4/1110:05 -

3 stops27h 25m

Deal found 31/8£739

Mon 26/1011:00 -

1 stop16h 45m

Mon 9/1111:35 -

3 stops50h 40m

Deal found 29/8£817

Wed 25/1113:55 -

2 stops22h 50m

Thu 3/1210:15 -

2 stops32h 50m

Deal found 31/8£830

Sat 6/214:05 -

2 stops22h 40m

Fri 12/220:30 -

2 stops22h 35m

Deal found 2/9£905

Thu 15/1008:30 -

3 stops24h 15m

Thu 22/1020:20 -

2 stops20h 50m

Deal found 31/8£962

Sat 26/914:55 -

2 stops20h 25m

Sat 3/1014:30 -

2 stops28h 25m

Deal found 1/9£995

Fri 2/1010:50 -

2 stops26h 55m

Sun 11/1020:30 -

2 stops19h 25m

Deal found 30/8£1,202

Thu 22/1017:35 -

2 stops20h 10m

Wed 4/1119:45 -

2 stops21h 10m

Deal found 31/8£1,244

Fri 20/1110:55 -

2 stops19h 10m

Sat 5/1220:30 -

2 stops26h 50m

Deal found 29/8£1,251

Mon 14/910:50 -

2 stops19h 50m

Wed 16/920:20 -

3 stops43h 35m

Deal found 29/8£1,283

Mon 9/1110:55 -

2 stops25h 50m

Mon 30/1120:30 -

2 stops26h 50m

Deal found 29/8£1,298

Fri 2/1008:25 -

2 stops20h 05m

Sun 11/1020:20 -

2 stops18h 20m

Deal found 30/8£1,867

Thu 15/1013:10 -

2 stops17h 30m

Thu 22/1020:20 -

2 stops18h 20m

Deal found 31/8£2,248

Sat 6/210:00 -

2 stops18h 15m

Fri 12/207:35 -

2 stops19h 00m

Deal found 2/9£5,849

Find flight deals from London to Vientiane

Round-trip from	£472
One-way from	£342
Popular in	June
Cheapest in	September
Average price	£607

China Southern
2/10-11/10
2 total stops
42h 30m total
London to Vientiane

Search Deals

26/9
3 total stops
56h 10m total
London to Vientiane

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£51 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonVientiane

LGW London Gatwick - VTE Vientiane Wattay

LGWVTE

London Gatwick

Wed 25/11

09:50-10:30

1 stop17h 40m

Vientiane Wattay

Thu 3/12

11:30-06:30

1 stop26h 00m

£479

LondonVientiane

LGW London Gatwick - VTE Vientiane Wattay

LGWVTE

London Gatwick

Sat 26/9

11:00-10:30

1 stop17h 30m

Vientiane Wattay

Fri 2/10

11:30-06:30

1 stop25h 00m

£500

LondonVientiane

LGW London Gatwick - VTE Vientiane Wattay

LGWVTE

London Gatwick

Mon 9/11

10:30-00:05

1 stop30h 35m

Vientiane Wattay

Mon 30/11

16:50-14:00

3 stops52h 10m

£588

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Mon 9/11

21:00-09:05

2 stops29h 05m

Vientiane Wattay

Sun 29/11

01:05-17:30

1 stop23h 25m

£619

LondonVientiane

LGW London Gatwick - VTE Vientiane Wattay

LGWVTE

London Gatwick

Sat 26/9

18:10-10:30

1 stop34h 20m

Vientiane Wattay

Fri 2/10

20:10-19:10

2 stops29h 00m

£663

LondonVientiane

LGW London Gatwick - VTE Vientiane Wattay

LGWVTE

London Gatwick

Tue 13/10

11:35-16:45

2 stops23h 10m

Vientiane Wattay

Tue 20/10

13:45-06:40

3 stops22h 55m

£682

LondonVientiane

LGW London Gatwick - VTE Vientiane Wattay

LGWVTE

London Gatwick

Fri 25/9

11:00-10:30

1 stop17h 30m

Vientiane Wattay

Tue 29/9

15:50-14:30

1 stop28h 40m

£689

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Sat 26/9

21:20-08:45

3 stops29h 25m

Vientiane Wattay

Fri 2/10

17:45-18:40

2 stops30h 55m

£691

LondonVientiane

LGW London Gatwick - VTE Vientiane Wattay

LGWVTE

London Gatwick

Thu 22/10

18:00-19:10

2 stops19h 10m

Vientiane Wattay

Wed 4/11

10:05-06:30

3 stops27h 25m

£739

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Mon 9/11

08:25-19:45

2 stops28h 20m

Vientiane Wattay

Mon 30/11

20:30-18:25

2 stops28h 55m

£774

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 57 resultsSorted by cheapest first

...

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.

LON-VTE

LHR-VTE

LGW-VTE

STN-VTE

LCY-VTE

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

LON-VTE

LHR-VTE

LGW-VTE

STN-VTE

LCY-VTE

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 £484). Flying from London to Vientiane in March is currently the most expensive (average of £1,434). 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’s the top stopover airport for flights from London to Vientiane?

Bangkok (BKK) – chosen by Cheapflights users on 75% of one-stop itineraries from London to Vientiane on Cheapflights.

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

Guangzhou (CAN) is the most affordable one-stop option, with an average return flight price of £573.

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

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 15h 36m.

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

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 2h 50m.

Reviews of airlines servicing Vientiane

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

418 reviews

Check prices

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

418 reviews

Thai Airways

7.9

Good

418 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Virendra,Jan 2026

DEL - BKK

China Southern

7.3

Good

172 reviews

Thai Airways

7.9

Good

418 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Virendra,Jan 2026

DEL - BKK

China Eastern

7.3

Good

236 reviews

Thai Airways

7.9

Good

418 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Virendra,Jan 2026

DEL - BKK

Related info for your journey

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 2 different airlines.
How long is the flight from London to Vientiane?
Airlines like China Southern, China Eastern, and Vietnam Airlines fly from London to Vientiane in about 17h 40m. The time it takes to get you to your destination can typically vary by up to 12h 55m. 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 Eastern (£470), and Thai Airways (£860) offers the cheapest pricing from London to Vientiane. China Eastern is priced at 42% 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 Gatwick - Vientiane Wattay, London Heathrow - 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 £484). Flying from London to Vientiane in March is currently the most expensive (average of £1,434). 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

Alternative routes

Complete your trip

Flights by cabin class

Other flight options

Other flights from London

Popular flights

Vientiane flight routes

Alternative routes for London to Vientiane

Heathrow to Vientiane flights

Gatwick to Vientiane flights

Stansted to Vientiane flights

Stansted to Luang Prabang flights

Heathrow to Luang Prabang flights

Gatwick to Luang Prabang flights

Manchester to Vientiane flights

Manchester to Luang Prabang flights

London City to Vientiane flights

Birmingham to Luang Prabang flights

Edinburgh to Vientiane flights

Top 2 airlines flying from London to Vientiane

Airline	Cheapest	Average	Flexibility	On-time
China Eastern	Cheapest£470	Average£555	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Thai Airways	Cheapest£860	Average£932	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London to Vientiane from £342

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Vientiane

Cheapest flights from London to VientianeExplore 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 3 September 2026.

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 3 September 2026.

Best flights from London to VientianeDiscover carefully curated flight deals from London to Vientiane that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Discover carefully curated flight deals from London to Vientiane that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Last-minute flights from London to VientianeDiscover last-minute flight deals from London to Vientiane. Data last updated 3 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Vientiane. Data last updated 3 September 2026 and is based on user searches.

One-way flights from London to VientianeSearch for one-way flight options from London to Vientiane. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Search for one-way flight options from London to Vientiane. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Find flight deals from London to Vientiane

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Vientiane that are best for you.

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.

Cheapflights Insights

What is the cheapest month to book a 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 75% 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 £573.

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 36m.

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 2h 50m.

Reviews of airlines servicing Vientiane

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.

Related info for your journey

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

How long is the flight from London to Vientiane?

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

What are the most popular routes from London to Vientiane?

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

How can I find direct flights from London to Vientiane?

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

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

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.

Alternative routes for London to Vientiane

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Vientiane by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from London to Vientiane by cabin class

Find flights from London to Vientiane, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Vientiane flights

Browse other London and Vientiane flight options. Last updated on 3 September 2026.

Other flights from London

Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on 3 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Vientiane

Explore flights to Vientiane departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 September 2026.

Top 2 airlines flying from London to Vientiane

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 3 September 2026.

Best flights from London to Vientiane
Discover carefully curated flight deals from London to Vientiane that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Last-minute flights from London to Vientiane
Discover last-minute flight deals from London to Vientiane. Data last updated 3 September 2026 and is based on user searches.

One-way flights from London to Vientiane
Search for one-way flight options from London to Vientiane. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.