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Cheap flights from London Heathrow Airport to Vientiane from £329

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 25/1. 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.
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 17:55
VTE
-
LHR
32h 30m2 stops
£535China Southern
Sun, 11 Jan - Thu, 26 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
£536China Southern
Thu, 26 Feb - Thu, 12 Mar
China Southern Logo
17:15 - 15:05
LHR
-
VTE
38h 50m2 stops
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m1 stop
£538China Southern
Sun, 11 Jan - Mon, 2 Mar
China Southern Logo
22:10 - 17:45
LHR
-
VTE
37h 35m1 stop
China Southern Logo
18:45 - 19:00
VTE
-
LHR
30h 15m1 stop
£543China Southern
Mon, 4 May - Mon, 18 May
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m1 stop
£544China Southern
Thu, 19 Feb - Thu, 5 Mar
China Southern Logo
21:00 - 17:45
LHR
-
VTE
38h 45m2 stops
China Southern Logo
18:45 - 19:00
VTE
-
LHR
30h 15m1 stop
£547China Southern
Mon, 4 May - Mon, 18 May
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 17:55
VTE
-
LHR
32h 30m2 stops
£554China Southern
Thu, 26 Feb - Thu, 12 Mar
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m1 stop
£559China Southern
Sun, 11 Jan - Sun, 1 Mar
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m1 stop
China Southern Logo
16:25 - 17:55
VTE
-
LHR
32h 30m2 stops
£562China Southern
Thu, 19 Feb - Thu, 5 Mar
China Southern Logo
17:15 - 15:05
LHR
-
VTE
38h 50m2 stops
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m1 stop
£568China Southern
Sun, 11 Jan - Fri, 27 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
11 Jan
LHR22:00London Heathrow
34h 05m
1 stop
VTE15:05Vientiane Wattay
26 Feb
VTE16:25Vientiane Wattay
32h 30m
2 stops
LHR17:55London Heathrow
£535
Find similar
China Southern
26 Feb
LHR22:00London Heathrow
34h 05m
1 stop
VTE15:05Vientiane Wattay
12 Mar
VTE16:25Vientiane Wattay
33h 10m
1 stop
LHR18:35London Heathrow
£536
Find similar
China Southern
11 Jan
LHR17:15London Heathrow
38h 50m
2 stops
VTE15:05Vientiane Wattay
2 Mar
VTE16:25Vientiane Wattay
33h 10m
1 stop
LHR18:35London Heathrow
£538
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
23 Jan
LHR11:00London Heathrow
16h 45m
1 stop
VTE10:45Vientiane Wattay
31 Jan
VTE19:45Vientiane Wattay
18h 30m
1 stop
LHR07:15London Heathrow
£724
Find similar
Vietnam Airlines
20 Jan
LHR11:00London Heathrow
24h 55m
2 stops
VTE18:55Vientiane Wattay
5 Feb
VTE19:45Vientiane Wattay
18h 30m
1 stop
LHR07:15London Heathrow
£725
Find similar
Vietnam Airlines
20 Jan
LHR11:00London Heathrow
24h 55m
2 stops
VTE18:55Vientiane Wattay
5 Feb
VTE19:45Vientiane Wattay
18h 30m
1 stop
LHR07:15London Heathrow
£727
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 12 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 11/1

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Thu 26/2

16:25-17:55

2 stops32h 30m

£535

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 26/2

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Thu 12/3

16:25-18:35

1 stop33h 10m

£536

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 11/1

17:15-15:05

2 stops38h 50m

Vientiane Wattay

Mon 2/3

16:25-18:35

1 stop33h 10m

£538

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 4/5

22:10-17:45

1 stop37h 35m

Vientiane Wattay

Mon 18/5

18:45-19:00

1 stop30h 15m

£543

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 19/2

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Thu 5/3

16:25-18:35

1 stop33h 10m

£544

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 4/5

21:00-17:45

2 stops38h 45m

Vientiane Wattay

Mon 18/5

18:45-19:00

1 stop30h 15m

£547

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 26/2

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Thu 12/3

16:25-17:55

2 stops32h 30m

£554

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 11/1

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Sun 1/3

16:25-18:35

1 stop33h 10m

£559

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 19/2

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Thu 5/3

16:25-17:55

2 stops32h 30m

£562

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 11/1

17:15-15:05

2 stops38h 50m

Vientiane Wattay

Fri 27/2

16:25-18:35

1 stop33h 10m

£568

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, 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 £488. 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 £681.

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 £735. 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 £833.

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 £642. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £824 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

20h 05m

Direct flights

None
The fastest flight from London Heathrow Airport to Vientiane takes 20h 05m
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 05m 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 £237Free CancellationRating
7.2
178 reviews
Search China Eastern flights
China SouthernPriceFrom £434Free CancellationRating
7.5
122 reviews
Search China Southern flights
Thai AirwaysPriceFrom £782Free CancellationRating
7.8
366 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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