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Cheap flights from London Heathrow Airport to Vientiane from £341

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 9/1. 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
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
17:40 - 21:50
LHR
-
VTE
21h 10m2 stops
Multiple Airlines Logo
18:30 - 15:55
VTE
-
LHR
28h 25m2 stops
£537Multiple Airlines
Sun, 25 Jan - Thu, 29 Jan
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 14:00
VTE
-
LHR
52h 35m2 stops
£580China Southern
Thu, 22 Jan - Mon, 26 Jan
China Southern Logo
21:30 - 15:05
LHR
-
VTE
34h 35m2 stops
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m1 stop
£595China Southern
Tue, 20 Jan - Thu, 5 Feb
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m1 stop
£617China Southern
Tue, 20 Jan - Thu, 5 Feb
China Eastern Logo
21:00 - 00:05
LHR
-
VTE
20h 05m1 stop
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m1 stop
£639China Eastern
Sun, 25 Jan - Wed, 28 Jan
China Eastern Logo
21:00 - 09:05
LHR
-
VTE
29h 05m2 stops
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m1 stop
£646China Eastern
Sun, 25 Jan - Wed, 28 Jan
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 14:00
VTE
-
LHR
52h 35m2 stops
£654China Southern
Thu, 22 Jan - Mon, 26 Jan
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 14:00
VTE
-
LHR
52h 35m2 stops
£656China Southern
Thu, 22 Jan - Mon, 26 Jan
Multiple Airlines Logo
06:30 - 13:05
LHR
-
VTE
23h 35m3 stops
Multiple Airlines Logo
01:05 - 17:55
VTE
-
LHR
23h 50m2 stops
£668Multiple Airlines
Sun, 25 Jan - Wed, 28 Jan
China Southern Logo
21:30 - 15:05
LHR
-
VTE
34h 35m2 stops
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m1 stop
£669China Southern
Tue, 20 Jan - Thu, 5 Feb

China Southern flights from London Heathrow Airport to Vientiane

Our best China Southern deals on London Heathrow Airport to Vientiane flight tickets
China Southern
22 Jan
LHR22:00London Heathrow
34h 05m
1 stop
VTE15:05Vientiane Wattay
26 Jan
VTE16:25Vientiane Wattay
52h 35m
2 stops
LHR14:00London Heathrow
£580
Find similar
China Southern
20 Jan
LHR21:30London Heathrow
34h 35m
2 stops
VTE15:05Vientiane Wattay
5 Feb
VTE16:25Vientiane Wattay
33h 10m
1 stop
LHR18:35London Heathrow
£595
Find similar
China Southern
20 Jan
LHR22:00London Heathrow
34h 05m
1 stop
VTE15:05Vientiane Wattay
5 Feb
VTE16:25Vientiane Wattay
33h 10m
1 stop
LHR18:35London Heathrow
£617
Find similar

Vietnam Airlines flights from London Heathrow Airport to Vientiane

Our best Vietnam Airlines deals on London Heathrow Airport to Vientiane flight tickets
Vietnam Airlines
22 Jan
LHR11:00London Heathrow
24h 55m
2 stops
VTE18:55Vientiane Wattay
26 Jan
VTE11:35Vientiane Wattay
26h 40m
2 stops
LHR07:15London Heathrow
£746
Find similar
Vietnam Airlines
22 Jan
LHR11:00London Heathrow
24h 55m
2 stops
VTE18:55Vientiane Wattay
26 Jan
VTE11:35Vientiane Wattay
26h 40m
2 stops
LHR07:15London Heathrow
£751
Find similar
Vietnam Airlines
22 Jan
LHR11:00London Heathrow
24h 55m
2 stops
VTE18:55Vientiane Wattay
26 Jan
VTE11:35Vientiane Wattay
26h 40m
2 stops
LHR07:15London Heathrow
£753
Find similar

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 5 December 2025.
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

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 25/1

17:40-21:50

2 stops21h 10m

Vientiane Wattay

Thu 29/1

18:30-15:55

2 stops28h 25m

£537

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 22/1

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Mon 26/1

16:25-14:00

2 stops52h 35m

£580

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 20/1

21:30-15:05

2 stops34h 35m

Vientiane Wattay

Thu 5/2

16:25-18:35

1 stop33h 10m

£595

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 20/1

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Thu 5/2

16:25-18:35

1 stop33h 10m

£617

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 25/1

21:00-00:05

1 stop20h 05m

Vientiane Wattay

Wed 28/1

01:05-17:30

1 stop23h 25m

£639

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 25/1

21:00-09:05

2 stops29h 05m

Vientiane Wattay

Wed 28/1

01:05-17:30

1 stop23h 25m

£646

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 22/1

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Mon 26/1

16:25-14:00

2 stops52h 35m

£654

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 22/1

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Mon 26/1

16:25-14:00

2 stops52h 35m

£656

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 25/1

06:30-13:05

3 stops23h 35m

Vientiane Wattay

Wed 28/1

01:05-17:55

2 stops23h 50m

£668

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 20/1

21:30-15:05

2 stops34h 35m

Vientiane Wattay

Thu 5/2

16:25-18:35

1 stop33h 10m

£669

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 typical price of a round-trip flight between London Heathrow Airport and Vientiane?

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 £489. 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 £676.

What is the cheapest day to depart on your flight to Vientiane?

The cheapest day to depart from London Heathrow Airport to Vientiane is on a Thursday when prices can be found for as low as £738. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £836.

What is the cheapest time of day to depart on your flight to Vientiane?

The cheapest time of day to fly to Vientiane is in the afternoon when flights can be purchased for as low as £644. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £827 on average. Flights to Vientiane from London Heathrow Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

21h 10m

Direct flights

None
The fastest flight from London Heathrow Airport to Vientiane takes 21h 10m
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. 17h 50m 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 £238Free CancellationRating
7.2
178 reviews
Search China Eastern flights
China SouthernPriceFrom £436Free CancellationRating
7.5
121 reviews
Search China Southern flights
Thai AirwaysPriceFrom £784Free CancellationRating
7.8
364 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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