LHR - VTE

£398 Find Cheap Flights from London Heathrow Airport to Vientiane

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 30/6. 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

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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Flights Deals

Cheap Flight Deals 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.

Recent return flight deals from Heathrow to Vientiane

KAYAK's recommended return flight deals from the most popular airlines that fly from Heathrow to Vientiane.
Discover the best prices for you by selecting your travel dates on KAYAK.
China Southern Logo
19:15 - 17:45LHR-VTE
40h 30m2 stops
China Southern Logo
18:45 - 18:05VTE-LHR
29h 20m2 stops
£459China Southern
Find Deal
Wed, 11 Jun - Mon, 16 Jun
China Southern Logo
19:15 - 17:45LHR-VTE
40h 30m2 stops
China Southern Logo
18:45 - 19:00VTE-LHR
30h 15m1 stop
£509China Southern
Find Deal
Wed, 11 Jun - Mon, 16 Jun
 Logo
22:00 - 22:20LHR-VTE
42h 20m2 stops
 Logo
21:05 - 19:30VTE-LHR
28h 25m1 stop
Mon, 30 Jun - Thu, 24 Jul
China Southern Logo
22:10 - 17:45LHR-VTE
37h 35m1 stop
China Southern Logo
18:45 - 19:00VTE-LHR
30h 15m1 stop
£535China Southern
Find Deal
Fri, 3 Oct - Tue, 21 Oct
China Southern Logo
22:10 - 17:45LHR-VTE
37h 35m1 stop
China Southern Logo
18:45 - 18:05VTE-LHR
29h 20m2 stops
£543China Southern
Find Deal
Fri, 3 Oct - Sun, 19 Oct
 Logo
22:00 - 19:50LHR-VTE
15h 50m1 stop
 Logo
23:20 - 18:40VTE-LHR
25h 20m1 stop
Wed, 11 Jun - Mon, 16 Jun
Vietnam Airlines Logo
18:55 - 19:15LHR-VTE
42h 20m3 stops
Vietnam Airlines Logo
11:30 - 17:50VTE-LHR
36h 20m2 stops
£756Vietnam Airlines
Find Deal
Wed, 11 Jun - Mon, 16 Jun
Vietnam Airlines Logo
18:55 - 10:45LHR-VTE
33h 50m1 stop
Vietnam Airlines Logo
20:00 - 17:50VTE-LHR
27h 50m1 stop
£770Vietnam Airlines
Find Deal
Mon, 6 Oct - Sat, 18 Oct
Thai Airways Logo
21:25 - 19:45LHR-VTE
16h 20m1 stop
Thai Airways Logo
20:30 - 07:15VTE-LHR
16h 45m1 stop
£885Thai Airways
Find Deal
Mon, 6 Oct - Mon, 20 Oct
China Eastern Logo
21:20 - 09:35LHR-VTE
54h 15m3 stops
China Eastern Logo
10:35 - 18:40VTE-LHR
38h 05m3 stops
£961China Eastern
Find Deal
Fri, 13 Jun - Fri, 20 Jun
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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’s the cheapest day of the week to fly from London Heathrow Airport to Vientiane?

The average price of all round-trip flights from London Heathrow Airport to Vientiane clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Vientiane on a Saturday and more expensive on a Wednesday. On your return trip to London Heathrow Airport, you should consider flying back on a Thursday, and avoid Fridays for better deals.

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 November, where tickets cost £715 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,189 and £917 respectively.

How far in advance should I book a flight from London Heathrow Airport to Vientiane?

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.
To get a below average price on the flight from London Heathrow Airport to Vientiane, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

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

Low season

August

High season

March

Cheapest flight

£398
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 4% lower 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 £534 for a one-way ticket and £616 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 Star Alliance 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 £816 and an overall rating of 7.7, Thai Airways is the most popular choice. China Southern is also a great choice for the route, with an average price of £536 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.

Top 3 airlines serving 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.
7.7
Thai AirwaysOverall score based on 325 reviews
7.5Comfort
8.3Crew
6.8Entertainment
7.8Boarding
7.3Food
Airline reviews

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

6.0 GoodAnonymous, Apr 2025BKK - DPS
Read more Thai Airways reviews

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

The setting configuration of the aircraft stinks. Nobody should pay business class fares and be so uncomfortable. The design of facing fellow passengers is a brilliant nincompoop.

Entertainment is limited with a relatively old catalogue. Wi-Fi never works and the cabin and lavatory had evidence of a lot of scuff marks and temporary repairs. Nothing unsafe, but a bit tatty in places.

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

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

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

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.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

Not good - chair back could not move back for premium economy. Not worth the price

The back of the chair - premium economy could not move back - not worth the price

It was okay. Boarding the staff made you feel rushed like we were late or something

It was great. The staff were so nice and helpful the food was great and they always made sure I was okay. As a foreigner I was worried about the language barrier but it was absolutely no issues. I highly recommend

Super surprised with the entire experience. Business class is incredible. Flight attendants around the world could learn customer service from these people. Simply fabulous experience all the way around.

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

Flight was on time. My group paid for seat’s so that us four can be seated next to each other. We all got separated. We all got middle seats, which made it more difficult to be able to get up and stretch or use the restroom. We tried talking to the employees at China Eastern and they were of no help. We will not be taking this flight or recommend this route to others in the future. Also I will be contacting customer service on how I can get our money back for paying for assigned seats.

China eastern was fantastic. I had read so many bad reviews that had made me nervous. However, I found that the flight attendant’s, and customer service check in etc. etc. was excellent. I had no problems. I would fly with them again!

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.

The crew were excellent, service amazing, blankets and pillow good, cabin temperature perfect, the flight on time, food was unusual selection however plentiful, price for tickets unbeatable through Kayak. Older aeroplanes used by China Eastern was the only down side.

Delay in off-boarding due to customs at SFO... pilot announcement should have come earlier so passengers don't clog aisles.

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

The temperature of the plane cabin is too hot. Sweat and uncomfortable. Also my food tray was broken down drinks fall off

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

Information on your arrival and departure airports

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