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Cheap flights from London Heathrow Airport to Vientiane from £298

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 24/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Vientiane

Cheap return flights

Hainan Airlines Logo
22:00 - 20:30LHR-VTE
16h 30m1 stop
Hainan Airlines Logo
21:35 - 19:30VTE-LHR
27h 55m2 stops
£404Hainan Airlines
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Wed, 24 Sep - Thu, 16 Oct
China Southern Logo
21:30 - 15:05LHR-VTE
58h 35m2 stops
China Southern Logo
16:25 - 18:15VTE-LHR
32h 50m1 stop
£470China Southern
Find Deal
Wed, 12 Nov - Sun, 16 Nov
Logo
22:00 - 20:30LHR-VTE
16h 30m1 stop
Logo
18:45 - 19:00VTE-LHR
30h 15m1 stop
£500
Find Deal
Wed, 24 Sep - Thu, 16 Oct
Logo
22:00 - 20:30LHR-VTE
16h 30m1 stop
Logo
18:45 - 19:00VTE-LHR
30h 15m1 stop
£515
Find Deal
Wed, 24 Sep - Thu, 16 Oct
China Southern Logo
22:00 - 15:05LHR-VTE
34h 05m1 stop
China Southern Logo
16:25 - 18:15VTE-LHR
32h 50m1 stop
£523China Southern
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Wed, 12 Nov - Sun, 16 Nov
China Southern Logo
22:00 - 18:25LHR-VTE
37h 25m1 stop
China Southern Logo
19:25 - 17:55VTE-LHR
29h 30m2 stops
£529China Southern
Find Deal
Sat, 6 Dec - Sat, 24 Jan
Vietnam Airlines Logo
19:10 - 19:10LHR-VTE
18h 00m2 stops
Vietnam Airlines Logo
20:00 - 16:55VTE-LHR
26h 55m1 stop
£621Vietnam Airlines
Find Deal
Thu, 9 Oct - Tue, 21 Oct
China Eastern Logo
21:00 - 14:20LHR-VTE
34h 20m3 stops
China Eastern Logo
18:40 - 17:30VTE-LHR
53h 50m2 stops
£640China Eastern
Find Deal
Sat, 22 Nov - Sat, 29 Nov
China Eastern Logo
21:20 - 09:35LHR-VTE
30h 15m2 stops
China Eastern Logo
01:00 - 18:40VTE-LHR
23h 40m1 stop
£641China Eastern
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Wed, 24 Sep - Wed, 15 Oct
Vietnam Airlines Logo
19:10 - 19:10LHR-VTE
18h 00m2 stops
Vietnam Airlines Logo
11:35 - 16:55VTE-LHR
35h 20m3 stops
£679Vietnam Airlines
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Thu, 9 Oct - Tue, 21 Oct

China Southern flights from London Heathrow Airport to Vientiane

Our best China Southern deals on London Heathrow Airport to Vientiane flight tickets
China Southern
12 Nov
LHR21:30London Heathrow
58h 35m
2 stops
VTE15:05Vientiane Wattay
16 Nov
VTE16:25Vientiane Wattay
32h 50m
1 stop
LHR18:15London Heathrow
£470
Find similar
China Southern
12 Nov
LHR22:00London Heathrow
34h 05m
1 stop
VTE15:05Vientiane Wattay
16 Nov
VTE16:25Vientiane Wattay
32h 50m
1 stop
LHR18:15London Heathrow
£523
Find similar
China Southern
6 Dec
LHR22:00London Heathrow
37h 25m
1 stop
VTE18:25Vientiane Wattay
24 Jan
VTE19:25Vientiane Wattay
29h 30m
2 stops
LHR17:55London Heathrow
£529
Find similar

China Eastern flights from London Heathrow Airport to Vientiane

Our best China Eastern deals on London Heathrow Airport to Vientiane flight tickets
China Eastern
22 Nov
LHR21:00London Heathrow
34h 20m
3 stops
VTE14:20Vientiane Wattay
29 Nov
VTE18:40Vientiane Wattay
53h 50m
2 stops
LHR17:30London Heathrow
£640
Find similar
China Eastern
24 Sept
LHR21:20London Heathrow
30h 15m
2 stops
VTE09:35Vientiane Wattay
15 Oct
VTE01:00Vientiane Wattay
23h 40m
1 stop
LHR18:40London Heathrow
£641
Find similar
China Eastern
22 Nov
LHR21:00London Heathrow
19h 59m
1 stop
VTE23:59Vientiane Wattay
29 Nov
VTE18:40Vientiane Wattay
53h 50m
2 stops
LHR17:30London Heathrow
£642
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 29 August 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

Wed 24/9

22:00-20:30

1 stop16h 30m

Vientiane Wattay

Thu 16/10

21:35-19:30

2 stops27h 55m

£404

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 12/11

21:30-15:05

2 stops58h 35m

Vientiane Wattay

Sun 16/11

16:25-18:15

1 stop32h 50m

£470

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 24/9

22:00-20:30

1 stop16h 30m

Vientiane Wattay

Thu 16/10

18:45-19:00

1 stop30h 15m

£500

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 24/9

22:00-20:30

1 stop16h 30m

Vientiane Wattay

Thu 16/10

18:45-19:00

1 stop30h 15m

£515

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 12/11

22:00-15:05

1 stop34h 05m

Vientiane Wattay

Sun 16/11

16:25-18:15

1 stop32h 50m

£523

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 6/12

22:00-18:25

1 stop37h 25m

Vientiane Wattay

Sat 24/1

19:25-17:55

2 stops29h 30m

£529

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 9/10

19:10-19:10

2 stops18h 00m

Vientiane Wattay

Tue 21/10

20:00-16:55

1 stop26h 55m

£621

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 22/11

21:00-14:20

3 stops34h 20m

Vientiane Wattay

Sat 29/11

18:40-17:30

2 stops53h 50m

£640

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 24/9

21:20-09:35

2 stops30h 15m

Vientiane Wattay

Wed 15/10

01:00-18:40

1 stop23h 40m

£641

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 9/10

19:10-19:10

2 stops18h 00m

Vientiane Wattay

Tue 21/10

11:35-16:55

3 stops35h 20m

£679

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, June 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 £675. If you’re not able to fly to Vientiane in June, then October is your next best option. Flight prices from London Heathrow Airport to Vientiane during October average around £695.

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 £728. 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 £825.

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 £636. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £816 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

Direct flights

None
There are no direct flights from London Heathrow Airport to Vientiane. There are no popular flight routes from London Heathrow Airport to Vientiane.
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  • How far is London Heathrow to Vientiane Wattay by plane?

    There are 5788.2 mi between London Heathrow and Vientiane Wattay. 16h 30m 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 £469Free CancellationRating
7.5
109 reviews
Search China Southern flights
China EasternPriceFrom £569Free CancellationRating
7.2
164 reviews
Search China Eastern flights
Thai AirwaysPriceFrom £769Free CancellationRating
7.8
345 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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