LHR - VTE

£348 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 9/9. 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

Save 26% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return fare
£646
Typical prices: £823-£972
China Eastern
Mon 9/11Sun 29/11
LHR - VTE • 1 stop
Cheapest one-way flight
£348
Multiple Airlines
Wed 9/9
LHR - VTE • 3 stops
Top airlines
Cheapest • from £646 (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 £718 (return)
Shortest trip • 16h 28m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% 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

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
£646China Eastern
Fri, 25 Dec - Sun, 31 Jan
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
£653China 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
£661China 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
£662China Eastern
Wed, 25 Nov - Wed, 2 Dec
Multiple Airlines Logo
17:40 - 22:05
LHR
-
VTE
21h 25m
2 stops
Multiple Airlines Logo
13:55 - 15:55
VTE
-
LHR
33h 00m
2 stops
£686Multiple Airlines
Mon, 7 Sep - Mon, 21 Sep
Multiple Airlines Logo
09:30 - 22:10
LHR
-
VTE
30h 40m
2 stops
Multiple Airlines Logo
18:20 - 18:45
VTE
-
LHR
30h 25m
2 stops
£701Multiple Airlines
Tue, 29 Sep - Mon, 5 Oct
Multiple Airlines Logo
21:20 - 00:05
LHR
-
VTE
20h 45m
1 stop
Multiple Airlines Logo
17:45 - 18:40
VTE
-
LHR
30h 55m
2 stops
£701Multiple Airlines
Tue, 1 Sep - Tue, 8 Sep
Multiple Airlines Logo
21:20 - 00:05
LHR
-
VTE
20h 45m
1 stop
Multiple Airlines Logo
19:10 - 17:40
VTE
-
LHR
28h 30m
2 stops
£710Multiple Airlines
Mon, 25 Jan - Thu, 4 Feb
Thai Airways Logo
11:50 - 13:05
LHR
-
VTE
18h 15m
1 stop
Thai Airways Logo
13:55 - 06:40
VTE
-
LHR
23h 45m
1 stop
£932Thai Airways
Thu, 24 Dec - Sun, 10 Jan
Thai Airways Logo
21:35 - 19:45
LHR
-
VTE
15h 10m
1 stop
Thai Airways Logo
20:30 - 06:40
VTE
-
LHR
17h 10m
1 stop
£1,364Thai Airways
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.

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 August, where tickets cost £0 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is £1,784 and £1,490 respectively.

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

Low season

September

Cheapest flight

£348
Best time to beat the crowds (59% less expensive on average)
Most popular time to fly (79% 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 5 days, the lowest price for a flight from London Heathrow Airport to Vientiane was £348 for a one-way ticket and £646 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 Eastern?

    The two airlines most popular with KAYAK users for flights from London to Vientiane are Thai Airways and China Eastern. With an average price for the route of £930 and an overall rating of 7.9, Thai Airways is the most popular choice. China Eastern is also a great choice for the route, with an average price of £555 and an overall rating of 7.3.

  • 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 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 413 reviews
7.7Comfort
6.9Entertainment
7.5Food
8.0Boarding
8.4Crew
Airline reviews

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

8.0 ExcellentHQ, Mar 2026
BKK - SIN
Read more Thai Airways reviews

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

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

USB charging port was not working at my seat 48K.

The flight attendants ignored us several times which was annoying. The sandwich thing wasn't very good but it's only an hour flight, it would have been better to have entertainment over bad food.

Increase the number of available films, including variety. All other aspects were great.

Check in was a disaster. 90 minutes and only 2 economy check in desks open. Had to rush to catch the flight.

I couldnt go on this flight and lost all my money over 1,000 UK Pounds as my visa to Myanmar was not accepted :(

No working jet bridge to deplane, with priority customers deplaning last. Followed by bus to terminal.

Excellent service. departed on time, and arrived ahead of schedule. The whole restrictions around no food/drink is a bit weird even with Covid. Also, no mobiles and iPad use during takeoff and landing is very 2006!

Pillow and blanket are dirty. My son got multiple bites during the flight

Excellent! I had read some negative reviews but I found out that it was not all was not true! The staff was courteous and helpful. The flight take off and landing was nice & easy. The food was good! I asked for a second and I got it easily and without an attitude! All was wonderful!

Excellent experience however older aeroplanes used by China Eastern Airlines.

Better good than most, if not all European airlines. If you’re stuck in an economy seat anyways, China Eastern is a good choice because of shorter flight time, being able to overfly Russia

I think it’s time that somebody set a standard for the temperature in the cabins. I would rather it be colder than anybody that wants to have a blanket have a blanket to keep it so warm at times is unbearable and quite uncomfortable. That’s the only thing I would add.

Great staff and food. Seats pretty uncomfortable but plenty of legroom. Entertainment system outdated.

Flight was fine, however we were not able to check in online, this adds to travel stress. Luckily check-in at Heathrow was quick, but we did not get the seats we paid extra for. We paid for a window and 2 aisle seats from Shanghai to Tokyo leg, but they changed us to middle seats. Not good :(

You’re in the three parts of my life, the China Eastern air crew remembered and wish me happy birthday. I was given pastries on two different occasions and a complementary drink. The stew is wish me happy birthday and gave me a birthday card. Everything was first class. Thank you.

It was my birthday while I was on the flight on China eastern airlines. They celebrated my day by giving me a personalized birthday card and also a very delicious pastry. I was surprised and thankful by the China Eastern crew! The whole staff was kind and professional? My second flight into China and the most memorable! Thank you-

A lot of value considering the cheap ticket prices. All meals served were Chinese food. Would fly them again considering the ticket was half the price of any others

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

Information on your arrival and departure airports