LHR - VTE

£432 Find Cheap Flights from London Heathrow Airport to Vientiane – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Vientiane departing on 18/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Vientiane

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Vientiane, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Vientiane, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£672
Typical prices: £729-£1,517
China Eastern
Thu 3/12Sat 5/12
LHR - VTE • 1 stop
Cheapest one-way flight
£432
Multiple Airlines
Fri 18/9
LHR - VTE • 2 stops
Top airlines
Cheapest • from £672 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Heathrow and Vientiane. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £731 (return)
Shortest trip • 16h 22m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 58% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Vientiane!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Vientiane (LHR-VTE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Vientiane that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Vientiane

Thu, 3 Dec - Sat, 5 Dec
China Eastern Logo
21:00 - 00:05
LHR
-
VTE
20h 05m
1 stop
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m
1 stop
£672China Eastern
Fri, 18 Sep - Tue, 10 Nov
China Eastern Logo
21:20 - 08:30
LHR
-
VTE
29h 10m
3 stops
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m
1 stop
£674China Eastern
Mon, 9 Nov - Sun, 29 Nov
China Eastern Logo
21:00 - 00:05
LHR
-
VTE
20h 05m
1 stop
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m
1 stop
£677China Eastern
Mon, 9 Nov - Sun, 29 Nov
China Eastern Logo
21:00 - 00:05
LHR
-
VTE
20h 05m
1 stop
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m
1 stop
£678China Eastern
Mon, 9 Nov - Mon, 30 Nov
China Eastern Logo
21:00 - 00:05
LHR
-
VTE
20h 05m
1 stop
China Eastern Logo
10:05 - 17:30
VTE
-
LHR
38h 25m
2 stops
£678China Eastern
Thu, 3 Dec - Sun, 6 Dec
China Eastern Logo
21:00 - 09:05
LHR
-
VTE
29h 05m
2 stops
China Eastern Logo
15:50 - 17:30
VTE
-
LHR
32h 40m
2 stops
£679China Eastern
Wed, 4 Nov - Wed, 11 Nov
China Eastern Logo
21:00 - 00:05
LHR
-
VTE
20h 05m
1 stop
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m
1 stop
£683China Eastern
Thu, 3 Dec - Sat, 5 Dec
China Eastern Logo
21:00 - 09:05
LHR
-
VTE
29h 05m
2 stops
China Eastern Logo
01:05 - 17:30
VTE
-
LHR
23h 25m
1 stop
£685China Eastern
Fri, 18 Sep - Wed, 11 Nov
China Southern Logo
22:10 - 10:30
LHR
-
VTE
30h 20m
1 stop
China Southern Logo
11:30 - 18:35
VTE
-
LHR
38h 05m
1 stop
£688China Southern
Thu, 12 Nov - Sun, 15 Nov
China Eastern Logo
21:00 - 00:05
LHR
-
VTE
20h 05m
1 stop
China Eastern Logo
10:05 - 17:30
VTE
-
LHR
38h 25m
3 stops
£699China Eastern
Booking Insights

KAYAK’s insights & trends for Heathrow to Vientiane flights

Get data-powered insights and trends into flights from Heathrow to Vientiane to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London Heathrow Airport to Vientiane?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Vientiane departing in December.

What is the cheapest month to fly from London Heathrow Airport to Vientiane?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Vientiane, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Vientiane is September, where tickets cost £416 (return) on average. On the other hand, the most expensive months are March and August, where the average cost of round-trip tickets is £1,815 and £1,435 respectively.

Good to know - Cheap tickets from London Heathrow Airport to Vientiane

Low seasonAugust
Cheapest flight£432
Best time to beat the crowds but there is an average 44% increase in price.
Most popular time to fly (82% more expensive on average)
Flight from London Heathrow Airport to Vientiane

When to book flights from Heathrow to Vientiane

Are your dates flexible? Find out the best times to travel from Heathrow to Vientiane based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Vientiane flights

  • What is the cheapest flight from London Heathrow Airport to Vientiane?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Vientiane was £432 for a one-way ticket and £672 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Vientiane?

    London Heathrow Airport and Vientiane are both served by 1 main airport. You will leave London Heathrow Airport from London Heathrow and will be arriving at Vientiane Wattay.

  • Which aircraft models fly most regularly from London Heathrow Airport to Vientiane?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Heathrow Airport to Vientiane?

    SkyTeam, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Vientiane, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from London to Vientiane, Thai Airways or China Southern?

    The two airlines most popular with KAYAK users for flights from London to Vientiane are Thai Airways and China Southern. With an average price for the route of £940 and an overall rating of 7.9, Thai Airways is the most popular choice. China Southern is also a great choice for the route, with an average price of £543 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Vientiane?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Vientiane.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Vientiane?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Vientiane from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Vientiane?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Vientiane with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Vientiane?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Vientiane from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from Heathrow to Vientiane

 
See real verified KAYAK customer reviews for airlines flying from London to Vientiane. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Vientiane? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Thai AirwaysOverall score based on 407 reviews
8.4Crew
7.4Food
6.9Entertainment
8.0Boarding
7.7Comfort
Airline reviews

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

8.0 ExcellentPeter, May 2026
KTI - LHR
Read more Thai Airways reviews

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Excellent airline. The plane was clean and the staff were very attentive

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Need to improve on punctuality. My flight was delayed by 1 hour.

Poor seats. Not helpful crew. The food was awful.overall very very bad experience. Traveled with the family of 5

did not get a notification about seat selection ahead of time. We didn't end up sitting together.

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

Overall I had good experience with China Southern airline. Nothing to claim. I hoped they could improve the meal quality that is.

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

China Southern was not the problem. I booked my flight through Kayak and also received a booking reference and alert details regarding departure time and gate numbers… however Kayak NEVER actually booked my flight! We were stranded at the airport without a flight for a long awaited holiday!

The connection between LA and Atlanta was too much stress

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The crew were kind, patient and responsive. The service was excellent, even though we travelled the cheapest economy class. We arrived at our destination 40 min early, which for a 15+ hour flight is a great bonus. The boarding seemed a bit "loose", but got us boarded on time, and the plane was off exactly @ 0:30 hrs.

This was my first time ever flying China Eatern and it will not be my last. I was very satisfied with my whole experience and trip. Thank you very much and until soon.

It was just fine. The sirlines did live up fully to my expectation.

The flight was delayed. The staff made us wait in the room that is too small and it was crowded and with no seats available for waiting. They did not tell us why the delay occurred.

While boarding at PVG, there was a ticket checking at the gate, then there was another ticket checking at the bottom of the escalator, which created quite a dangerous congestion. Not sure which idiot made this absolutely unnecessary arrangement.

While boarding at PVG, there was a ticket checking by the gate, then there was another ticket checking right at the bottom of the escalator, which created quite a dangerous congestion. Don't understand why the duplication?

I was traveling alone with an infant, so the crew was incredibly helpful. Both the international and subsequent domestic flights were impeccable.

Plane was good. But food was bad and air host was so rude. I will never fly with China Eastern again

The flight was delayed by 2 hours, although to their credit they delayed my connecting flight so people could reach it. Also their site is a nightmare to navigate on a phone. Everything else was good.

The ticket was last minute buy so no concerns about the pricing this time, but the crew in general could have been more accommodating, helpful.

CTU-KMG-CNX with 1.5 hr connection at KMG. Doable but just barely bc immigration exit from China is at the last flight leg, here: KMG to CNX. We hauled out of the domestic terminal to reenter at the international departures (luggage checked thru to CNX thankfully). Immigration had only two agents, even though KMG gets a HUGE number of foreigners. It took forever for such a shot line. Then security also took a while, so I just just made the connection. Recommend if you exit China with domestic international transfer, plan for 2+ hrs to avoid a heart attack. Airline personnel don’t suffer if you miss the flight, you do. Plan accordingly.

Everything you need to know for your flight from Heathrow to Vientiane

Information on your arrival and departure airports