Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Vientiane from £336

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 2/3. 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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 10:30
LHR
-
VTE
29h 30m
1 stop
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m
1 stop
£513China Southern
Wed, 4 Mar - Wed, 18 Mar
China Southern Logo
22:10 - 14:45
LHR
-
VTE
34h 35m
1 stop
China Southern Logo
15:50 - 19:00
VTE
-
LHR
33h 10m
1 stop
£533China Southern
Thu, 4 Jun - Thu, 25 Jun
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m
1 stop
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m
1 stop
£534China Southern
Wed, 18 Feb - Wed, 25 Feb
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m
1 stop
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m
1 stop
£541China Southern
Wed, 18 Feb - Wed, 25 Feb
China Southern Logo
17:15 - 15:05
LHR
-
VTE
38h 50m
2 stops
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m
1 stop
£542China Southern
Wed, 18 Feb - Wed, 25 Feb
China Southern Logo
17:15 - 15:05
LHR
-
VTE
38h 50m
2 stops
China Southern Logo
11:30 - 18:35
VTE
-
LHR
38h 05m
1 stop
£550China Southern
Wed, 4 Mar - Wed, 18 Mar
China Southern Logo
22:00 - 15:05
LHR
-
VTE
34h 05m
1 stop
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m
1 stop
£558China Southern
Tue, 17 Feb - Tue, 24 Feb
China Southern Logo
22:00 - 10:30
LHR
-
VTE
29h 30m
1 stop
China Southern Logo
11:30 - 18:35
VTE
-
LHR
38h 05m
1 stop
£560China Southern
Fri, 13 Mar - Fri, 20 Mar
China Southern Logo
21:00 - 14:45
LHR
-
VTE
35h 45m
2 stops
China Southern Logo
15:50 - 19:00
VTE
-
LHR
33h 10m
1 stop
£563China Southern
Thu, 4 Jun - Thu, 25 Jun
China Southern Logo
17:15 - 15:05
LHR
-
VTE
62h 50m
2 stops
China Southern Logo
16:25 - 18:35
VTE
-
LHR
33h 10m
1 stop
£564China Southern
Wed, 18 Feb - Tue, 24 Feb

Vietnam Airlines flights from London Heathrow Airport to Vientiane

Our best Vietnam Airlines deals on London Heathrow Airport to Vientiane flight tickets
Vietnam Airlines
13 May
LHR06:15London Heathrow
31h 00m
3 stops
VTE19:15Vientiane Wattay
17 May
VTE11:30Vientiane Wattay
35h 35m
3 stops
LHR17:05London Heathrow
£882
Vietnam Airlines
4 Feb
LHR06:20London Heathrow
21h 25m
2 stops
VTE10:45Vientiane Wattay
7 Mar
VTE11:35Vientiane Wattay
50h 40m
3 stops
LHR07:15London Heathrow
£3,573
Vietnam Airlines
5 Feb
LHR11:00London Heathrow
24h 55m
2 stops
VTE18:55Vientiane Wattay
5 Mar
VTE11:35Vientiane Wattay
26h 40m
3 stops
LHR07:15London Heathrow
£3,759

China Southern flights from London Heathrow Airport to Vientiane

Our best China Southern deals on London Heathrow Airport to Vientiane flight tickets
China Southern
4 Mar
LHR22:00London Heathrow
29h 30m
1 stop
VTE10:30Vientiane Wattay
18 Mar
VTE16:25Vientiane Wattay
33h 10m
1 stop
LHR18:35London Heathrow
£513
China Southern
4 Jun
LHR22:10London Heathrow
34h 35m
1 stop
VTE14:45Vientiane Wattay
25 Jun
VTE15:50Vientiane Wattay
33h 10m
1 stop
LHR19:00London Heathrow
£533
China Southern
18 Feb
LHR22:00London Heathrow
34h 05m
1 stop
VTE15:05Vientiane Wattay
25 Feb
VTE16:25Vientiane Wattay
33h 10m
1 stop
LHR18:35London Heathrow
£534

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 28 January 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

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 4/3

22:00-10:30

1 stop29h 30m

Vientiane Wattay

Wed 18/3

16:25-18:35

1 stop33h 10m

£513

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 4/6

22:10-14:45

1 stop34h 35m

Vientiane Wattay

Thu 25/6

15:50-19:00

1 stop33h 10m

£533

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 18/2

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Wed 25/2

16:25-18:35

1 stop33h 10m

£534

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 18/2

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Wed 25/2

16:25-18:35

1 stop33h 10m

£541

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 18/2

17:15-15:05

2 stops38h 50m

Vientiane Wattay

Wed 25/2

16:25-18:35

1 stop33h 10m

£542

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 4/3

17:15-15:05

2 stops38h 50m

Vientiane Wattay

Wed 18/3

11:30-18:35

1 stop38h 05m

£550

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 17/2

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Tue 24/2

16:25-18:35

1 stop33h 10m

£558

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Fri 13/3

22:00-10:30

1 stop29h 30m

Vientiane Wattay

Fri 20/3

11:30-18:35

1 stop38h 05m

£560

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 4/6

21:00-14:45

2 stops35h 45m

Vientiane Wattay

Thu 25/6

15:50-19:00

1 stop33h 10m

£563

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 18/2

17:15-15:05

2 stops62h 50m

Vientiane Wattay

Tue 24/2

16:25-18:35

1 stop33h 10m

£564

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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 £475. 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 £664.

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 SouthernPriceFrom £423Free CancellationRating
7.3
136 reviews
Search China Southern flights
China EasternPriceFrom £560Free CancellationRating
7.2
191 reviews
Search China Eastern flights
Thai AirwaysPriceFrom £767Free CancellationRating
7.8
380 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.

An easier way to manage your Vientiane trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 27/2
Fri 6/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Laos

Airports servicing Laos

Luang Prabang Airport