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Cheap flights from London Heathrow Airport to Vientiane from £334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Vientiane departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from London Heathrow Airport to Vientiane

Cheap return flights

Enter your travel dates to find the best prices.
China Eastern Logo
21:00 - 11:20LHR  London Heathrow-VTE Vientiane Wattay
31h 20m2 stops Shanghai Pu Dong Kunming Changshui
China Eastern Logo
15:50 - 17:30VTE  Vientiane Wattay-LHR London Heathrow
32h 40m2 stops Kunming Changshui Shanghai Pu Dong
£601China Eastern
Thu, 12 Nov - Mon, 30 Nov
China Eastern Logo
21:00 - 00:05LHR  London Heathrow-VTE Vientiane Wattay
20h 05m1 stop Shanghai Pu Dong
China Eastern Logo
15:50 - 17:30VTE  Vientiane Wattay-LHR London Heathrow
32h 40m2 stops Kunming Changshui Shanghai Pu Dong
£601China Eastern
Thu, 12 Nov - Mon, 30 Nov
China Eastern Logo
21:20 - 00:05LHR  London Heathrow-VTE Vientiane Wattay
20h 45m1 stop Shanghai Pu Dong
China Eastern Logo
01:05 - 17:30VTE  Vientiane Wattay-LHR London Heathrow
23h 25m1 stop Shanghai Pu Dong
£609China Eastern
Tue, 29 Sep - Sun, 29 Nov
China Eastern Logo
21:00 - 00:05LHR  London Heathrow-VTE Vientiane Wattay
20h 05m1 stop Shanghai Pu Dong
China Eastern Logo
01:05 - 17:30VTE  Vientiane Wattay-LHR London Heathrow
23h 25m1 stop Shanghai Pu Dong
£610China Eastern
Wed, 4 Nov - Mon, 23 Nov
Multiple Airlines Logo
22:00 - 13:20LHR  London Heathrow-VTE Vientiane Wattay
33h 20m2 stops Shenzhen Bangkok Suvarnabhumi
Multiple Airlines Logo
21:40 - 16:20VTE  Vientiane Wattay-LHR London Heathrow
25h 40m1 stop Haikou Meilan Intl
£688Multiple Airlines
Tue, 20 Oct - Tue, 3 Nov
Multiple Airlines Logo
22:00 - 11:15LHR  London Heathrow-VTE Vientiane Wattay
30h 15m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi
Multiple Airlines Logo
21:35 - 16:20VTE  Vientiane Wattay-LHR London Heathrow
25h 45m1 stop Haikou Meilan Intl
£691Multiple Airlines
Thu, 5 Nov - Tue, 24 Nov
Multiple Airlines Logo
17:40 - 22:10LHR  London Heathrow-VTE Vientiane Wattay
21h 30m2 stops Beijing Capital Bangkok Suvarnabhumi
Multiple Airlines Logo
18:15 - 15:55VTE  Vientiane Wattay-LHR London Heathrow
28h 40m2 stops Bangkok Suvarnabhumi Beijing Capital
£697Multiple Airlines
Thu, 26 Nov - Sun, 29 Nov
Thai Airways Logo
21:35 - 19:45LHR  London Heathrow-VTE Vientiane Wattay
15h 10m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
13:55 - 06:40VTE  Vientiane Wattay-LHR London Heathrow
23h 45m1 stop Bangkok Suvarnabhumi
£931Thai Airways
Sat, 30 Jan - Sat, 13 Feb
Thai Airways Logo
11:50 - 13:05LHR  London Heathrow-VTE Vientiane Wattay
18h 15m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
13:55 - 06:40VTE  Vientiane Wattay-LHR London Heathrow
23h 45m1 stop Bangkok Suvarnabhumi
£948Thai Airways
Sat, 30 Jan - Mon, 8 Feb
Thai Airways Logo
11:50 - 13:05LHR  London Heathrow-VTE Vientiane Wattay
18h 15m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
13:55 - 06:40VTE  Vientiane Wattay-LHR London Heathrow
23h 45m1 stop Bangkok Suvarnabhumi
£987Thai Airways
Fri, 13 Nov - Wed, 9 Dec

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China Southern flights from London Heathrow Airport to Vientiane

Our best China Southern deals on London Heathrow Airport to Vientiane flight tickets
China Southern
2 Sept
LHR22:10London Heathrow
34h 35m
1 stop
VTE14:45Vientiane Wattay
16 Sept
VTE15:50Vientiane Wattay
33h 30m
1 stop
LHR19:20London Heathrow
£697
China Southern
20 Oct
LHR22:10London Heathrow
30h 20m
1 stop
VTE10:30Vientiane Wattay
3 Nov
VTE11:30Vientiane Wattay
38h 05m
1 stop
LHR18:35London Heathrow
£699
China Southern
2 Sept
LHR21:00London Heathrow
35h 45m
2 stops
VTE14:45Vientiane Wattay
16 Sept
VTE15:50Vientiane Wattay
33h 30m
1 stop
LHR19:20London Heathrow
£722

China Eastern flights from London Heathrow Airport to Vientiane

Our best China Eastern deals on London Heathrow Airport to Vientiane flight tickets
China Eastern
12 Nov
LHR21:00London Heathrow
31h 20m
2 stops
VTE11:20Vientiane Wattay
30 Nov
VTE15:50Vientiane Wattay
32h 40m
2 stops
LHR17:30London Heathrow
£601
China Eastern
29 Sept
LHR21:20London Heathrow
20h 45m
1 stop
VTE00:05Vientiane Wattay
29 Nov
VTE01:05Vientiane Wattay
23h 25m
1 stop
LHR17:30London Heathrow
£609
China Eastern
30 Oct
LHR21:00London Heathrow
20h 05m
1 stop
VTE00:05Vientiane Wattay
15 Nov
VTE01:05Vientiane Wattay
23h 25m
1 stop
LHR17:30London Heathrow
£610

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 11 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Vientiane that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Thu 12/11

21:00-11:20

2 stops31h 20m

Vientiane Wattay

Mon 30/11

15:50-17:30

2 stops32h 40m

£601

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Thu 12/11

21:00-00:05

1 stop20h 05m

Vientiane Wattay

Mon 30/11

15:50-17:30

2 stops32h 40m

£601

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Tue 29/9

21:20-00:05

1 stop20h 45m

Vientiane Wattay

Sun 29/11

01:05-17:30

1 stop23h 25m

£609

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Wed 4/11

21:00-00:05

1 stop20h 05m

Vientiane Wattay

Mon 23/11

01:05-17:30

1 stop23h 25m

£610

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Tue 20/10

22:00-13:20

2 stops33h 20m

Vientiane Wattay

Tue 3/11

21:40-16:20

1 stop25h 40m

£688

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Thu 5/11

22:00-11:15

2 stops30h 15m

Vientiane Wattay

Tue 24/11

21:35-16:20

1 stop25h 45m

£691

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Thu 26/11

17:40-22:10

2 stops21h 30m

Vientiane Wattay

Sun 29/11

18:15-15:55

2 stops28h 40m

£697
Fastest return journey

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Sat 30/1

21:35-19:45

1 stop15h 10m

Vientiane Wattay

Sat 13/2

13:55-06:40

1 stop23h 45m

£931

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Sat 30/1

11:50-13:05

1 stop18h 15m

Vientiane Wattay

Mon 8/2

13:55-06:40

1 stop23h 45m

£948

LondonVientiane

LHR London Heathrow - VTE Vientiane Wattay

LHRVTE

London Heathrow

Fri 13/11

11:50-13:05

1 stop18h 15m

Vientiane Wattay

Wed 9/12

13:55-06:40

1 stop23h 45m

£986

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Vientiane from

How to get the cheapest flight ticket from London Heathrow Airport to Vientiane

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Vientiane?

In general, August is the cheapest month to fly from London Heathrow Airport to Vientiane. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £0. If you’re not able to fly to Vientiane in August, then September is your next best option. Flight prices from London Heathrow Airport to Vientiane during September average around £408.

Can stopping save me money on London Heathrow Airport to Vientiane flights?

You could potentially save up to 18% on your flight if you consider stops on a London Heathrow Airport to Vientiane flight.

When to book flights from London Heathrow Airport to Vientiane

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Vientiane according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Vientiane (LHR to VTE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Vientiane

Fastest flight time

16h 40m

Direct flights

None
The fastest flight from London Heathrow Airport to Vientiane takes 16h 40m
There are no direct flights from London Heathrow Airport to Vientiane. There are no popular flight routes from London Heathrow Airport to Vientiane.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Vientiane

  • How far is London Heathrow to Vientiane Wattay by plane?

    There are 5788.2 mi between London Heathrow and Vientiane Wattay. 16h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Vientiane Wattay Airport?

    Prices for flights from London Heathrow Airport to Vientiane Wattay Airport are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Vientiane Wattay Airport?

  • How old do you have to be to fly from London Heathrow Airport to Vientiane Wattay Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Vientiane Wattay Airport.

  • What documentation or ID do you need to fly to Vientiane Wattay Airport?

    The travel and health documents required for your trip to Vientiane Wattay Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Vientiane Wattay Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from London Heathrow Airport to Vientiane?

Best airlines flying from London Heathrow Airport to Vientiane

Compare and see reviews for airlines that fly from London Heathrow Airport to Vientiane with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £470Free CancellationRating
7.3
232 reviews
Search China Eastern flights
Thai AirwaysPriceFrom £859Free CancellationRating
7.9
414 reviews
Search Thai Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Vientiane?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Vientiane . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Vientiane with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Vientiane from London with this policy.

How can momondo help me find flights from London to Vientiane?

momondo provides multiple filters to help you find the best flight to Vientiane from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Vientiane right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Vientiane, momondo offers a useful price alert feature which will track prices for flights to Vientiane from London and alert you when they change.

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