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Cheap flights from London Heathrow Airport to Vientiane from £346

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 6/4. 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.
Multiple Airlines Logo
22:10 - 10:30
LHR
-
VTE
30h 20m
1 stop
Multiple Airlines Logo
17:45 - 18:40
VTE
-
LHR
30h 55m
2 stops
£548Multiple Airlines
Tue, 5 May - Wed, 20 May
Multiple Airlines Logo
22:10 - 10:30
LHR
-
VTE
30h 20m
1 stop
Multiple Airlines Logo
17:45 - 18:40
VTE
-
LHR
30h 55m
2 stops
£554Multiple Airlines
Sat, 16 May - Wed, 20 May
China Eastern Logo
21:20 - 08:45
LHR
-
VTE
29h 25m
3 stops
China Eastern Logo
01:05 - 18:40
VTE
-
LHR
23h 35m
1 stop
£563China Eastern
Wed, 8 Apr - Wed, 13 May
China Eastern Logo
21:20 - 08:45
LHR
-
VTE
29h 25m
2 stops
China Eastern Logo
17:45 - 18:40
VTE
-
LHR
30h 55m
2 stops
£579China Eastern
Tue, 5 May - Wed, 20 May
China Eastern Logo
21:20 - 08:45
LHR
-
VTE
29h 25m
3 stops
China Eastern Logo
13:45 - 18:40
VTE
-
LHR
34h 55m
2 stops
£586China Eastern
Tue, 5 May - Wed, 20 May
China Southern Logo
22:10 - 10:30
LHR
-
VTE
30h 20m
1 stop
China Southern Logo
11:30 - 19:20
VTE
-
LHR
37h 50m
1 stop
£592China Southern
Wed, 8 Apr - Thu, 14 May
China Eastern Logo
21:20 - 08:45
LHR
-
VTE
29h 25m
2 stops
China Eastern Logo
15:50 - 18:40
VTE
-
LHR
32h 50m
2 stops
£640China Eastern
Mon, 4 May - Wed, 20 May
Multiple Airlines Logo
07:00 - 21:50
LHR
-
VTE
32h 50m
3 stops
Multiple Airlines Logo
17:45 - 18:40
VTE
-
LHR
30h 55m
2 stops
£642Multiple Airlines
Sat, 16 May - Wed, 20 May
Multiple Airlines Logo
07:00 - 16:45
LHR
-
VTE
27h 45m
3 stops
Multiple Airlines Logo
17:45 - 18:40
VTE
-
LHR
30h 55m
2 stops
£651Multiple Airlines
Wed, 8 Apr - Thu, 14 May
China Southern Logo
22:10 - 10:30
LHR
-
VTE
30h 20m
1 stop
China Southern Logo
15:50 - 19:20
VTE
-
LHR
33h 30m
1 stop
£657China Southern
Tue, 5 May - Wed, 20 May

Vietnam Airlines flights from London Heathrow Airport to Vientiane

Our best Vietnam Airlines deals on London Heathrow Airport to Vientiane flight tickets
Vietnam Airlines
1 Jun
LHR18:55London Heathrow
33h 40m
1 stop
VTE10:35Vientiane Wattay
15 Jun
VTE20:20Vientiane Wattay
27h 30m
2 stops
LHR17:50London Heathrow
£830
Vietnam Airlines
1 Jun
LHR18:55London Heathrow
33h 40m
1 stop
VTE10:35Vientiane Wattay
15 Jun
VTE11:20Vientiane Wattay
36h 30m
2 stops
LHR17:50London Heathrow
£836
Vietnam Airlines
1 Jun
LHR18:55London Heathrow
42h 40m
3 stops
VTE19:35Vientiane Wattay
15 Jun
VTE11:20Vientiane Wattay
59h 35m
3 stops
LHR16:55London Heathrow
£846

China Eastern flights from London Heathrow Airport to Vientiane

Our best China Eastern deals on London Heathrow Airport to Vientiane flight tickets
China Eastern
8 Apr
LHR21:20London Heathrow
29h 25m
3 stops
VTE08:45Vientiane Wattay
13 May
VTE01:05Vientiane Wattay
23h 35m
1 stop
LHR18:40London Heathrow
£563
China Eastern
5 May
LHR21:20London Heathrow
29h 25m
2 stops
VTE08:45Vientiane Wattay
20 May
VTE17:45Vientiane Wattay
30h 55m
2 stops
LHR18:40London Heathrow
£579
China Eastern
5 May
LHR21:20London Heathrow
29h 25m
3 stops
VTE08:45Vientiane Wattay
20 May
VTE13:45Vientiane Wattay
34h 55m
2 stops
LHR18:40London Heathrow
£586

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 14 March 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 - VTE

LHRVTE

London Heathrow

Tue 5/5

22:10-10:30

1 stop30h 20m

Vientiane Wattay

Wed 20/5

17:45-18:40

2 stops30h 55m

£548

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 16/5

22:10-10:30

1 stop30h 20m

Vientiane Wattay

Wed 20/5

17:45-18:40

2 stops30h 55m

£554
Fastest return journey

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 8/4

21:20-08:45

3 stops29h 25m

Vientiane Wattay

Wed 13/5

01:05-18:40

1 stop23h 35m

£563

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 5/5

21:20-08:45

2 stops29h 25m

Vientiane Wattay

Wed 20/5

17:45-18:40

2 stops30h 55m

£579

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 5/5

21:20-08:45

3 stops29h 25m

Vientiane Wattay

Wed 20/5

13:45-18:40

2 stops34h 55m

£586

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 8/4

22:10-10:30

1 stop30h 20m

Vientiane Wattay

Thu 14/5

11:30-19:20

1 stop37h 50m

£592

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 4/5

21:20-08:45

2 stops29h 25m

Vientiane Wattay

Wed 20/5

15:50-18:40

2 stops32h 50m

£640

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 16/5

07:00-21:50

3 stops32h 50m

Vientiane Wattay

Wed 20/5

17:45-18:40

2 stops30h 55m

£642

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 8/4

07:00-16:45

3 stops27h 45m

Vientiane Wattay

Thu 14/5

17:45-18:40

2 stops30h 55m

£651

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 5/5

22:10-10:30

1 stop30h 20m

Vientiane Wattay

Wed 20/5

15:50-19:20

1 stop33h 30m

£657

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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, September 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 £453. If you’re not able to fly to Vientiane in September, then June is your next best option. Flight prices from London Heathrow Airport to Vientiane during June average around £687.

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

20h 45m

Direct flights

None
The fastest flight from London Heathrow Airport to Vientiane takes 20h 45m
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

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

    There are 5788.2 mi between London Heathrow and Vientiane Wattay. 20h 45m 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 SouthernPriceFrom £438Free CancellationRating
7.4
142 reviews
Search China Southern flights
China EasternPriceFrom £552Free CancellationRating
7.2
198 reviews
Search China Eastern flights
Thai AirwaysPriceFrom £821Free CancellationRating
7.8
392 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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