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Cheap flights from London Heathrow Airport to Vientiane from £303

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — VTE
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Vientiane Wattay are usually found in November or June, booked 2 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Heathrow to Vientiane

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Vientiane (VTE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 April 2025.

Round-trip from

£523

One-way from

£303

Popular in

December

Cheapest in

November

Average price

£793
Hainan Airlines
  • Hainan Airlines
  • 30/6-24/7
  • 3 total stops
  • 70h 45m total
  • London to Vientiane
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8/6
  • 8/6
  • 2 total stops
  • 31h 55m total
  • London to Vientiane
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£45 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£26 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Find flight deals from Heathrow to Vientiane

Cheapest flights from Heathrow to Vientiane
Explore the most affordable flight options available from Heathrow to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Sat 1/1122:00LHR - VTE
1 stop37h 25mChina Southern
Sun 16/1119:25VTE - LHR
1 stop29h 50mChina Southern
Deal found 28/4£503
Mon 30/622:00LHR - VTE
2 stops42h 20mMultiple Airlines
Thu 24/721:05VTE - LHR
1 stop28h 25mMultiple Airlines
Deal found 28/4£523
Mon 5/521:20LHR - VTE
2 stops30h 15mChina Eastern
Mon 19/515:50VTE - LHR
2 stops32h 50mChina Eastern
Deal found 29/4£610
Mon 5/518:55LHR - VTE
3 stops42h 20mVietnam Airlines
Mon 12/511:30VTE - LHR
2 stops36h 20mVietnam Airlines
Deal found 28/4£748

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 29 April 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Vientiane that are best for you.

Fly from

Heathrow

Fly to

Vientiane

Route

Depart

Return

Price

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 30/6

22:00-22:20

2 stops42h 20m

Vientiane Wattay

Thu 24/7

21:05-19:30

1 stop28h 25m

£523

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 12/6

21:00-17:45

2 stops38h 45m

Vientiane Wattay

Thu 19/6

18:45-19:00

1 stop30h 15m

£543

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 28/5

21:20-09:35

2 stops30h 15m

Vientiane Wattay

Wed 4/6

18:50-18:40

2 stops29h 50m

£611

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 12/6

06:15-19:15

3 stops31h 00m

Vientiane Wattay

Thu 19/6

11:30-10:30

3 stops29h 00m

£974

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 8/6

22:15-12:10

2 stops31h 55m

£303

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 26/5

22:10-17:45

1 stop37h 35m

£305

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 26/5

21:20-09:35

2 stops30h 15m

£379

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 10/5

21:25-19:45

1 stop16h 20m

£512

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Best time to book a flight from Heathrow to Vientiane

Have a flexible travel schedule? Discover the best time to fly to Vientiane from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Vientiane

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Vientiane. Price data was last updated on 25 April 2025.

The price you pay for your flight from London Heathrow Airport to Vientiane may vary depending on when you book. For the best chance of a lower fare, look to book 2 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Rainfall in Vientiane by month

Plan your trip to Vientiane by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Vientiane ranges from 10.0 - 120.0 inches per month. July is typically the wettest month, when rainfall can reach 120.0 mm. January is typically the driest time to visit Vientiane when rainfall is around 10.0 mm.

Temperature in Vientiane by month

Plan your trip to Vientiane by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Vientiane, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 22.0 C).

Reviews of airlines servicing Vientiane

Get insights into the airlines that provide service to Vientiane. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vientiane. Reviews last updated 29 April 2025.
Peruse reviews from past customers who have flown with Thai Airways, Vietnam Airlines and China Southern from London to Vientiane to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.7
Good
325 reviews
Check prices

Comfort

7.5

Entertainment

6.8

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
Thai Airways
7.7
Good
325 reviews
Thai Airways
7.7
Good
325 reviews
Check prices

Comfort

7.5

Entertainment

6.8

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
Vietnam Airlines
7.6
Good
196 reviews
Thai Airways
7.7
Good
325 reviews
Check prices

Comfort

7.5

Entertainment

6.8

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
China Southern
7.5
Good
96 reviews
Thai Airways
7.7
Good
325 reviews
Check prices

Comfort

7.5

Entertainment

6.8

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
China Eastern
7.1
Good
148 reviews
Thai Airways
7.7
Good
325 reviews
Check prices

Comfort

7.5

Entertainment

6.8

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Vientiane. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Vientiane from London Heathrow?

    Vientiane Wattay (VTE), located 2.8 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Vientiane. 3 airlines have flights to Wattay from London Heathrow on a regular basis. Booking flights from London Heathrow to Vientiane Wattay should not be difficult; the airport handles an average of 0 inbound flights from London Heathrow per day.

  • What are the cheapest airlines flying from London Heathrow Airport to Vientiane round-trip?

    Currently priced at £543, China Southern will fly you from London Heathrow Airport to Vientiane and back. In addition to China Southern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Eastern and Vietnam Airlines - these airlines can fly you to your destination from £611 and £974, respectively. You may be able to fly from London Heathrow Airport to Vientiane for 34% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from London Heathrow Airport to Vientiane one-way?

    For one-way options, check prices for China Southern. According to our data, you can fly for as low as £305. Users have also found prices from £379 and £512 on China Eastern and Thai Airways, respectively.

  • Can I find deals for flights from Heathrow to Vientiane that include hotel bookings?

    Yes. In addition to deals on Heathrow to Vientiane flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Vientiane?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Vientiane.

  • Can I find deals for business class flights from Heathrow to Vientiane?

    Yes. Cheapflights offers flight deals from Heathrow to Vientiane by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Heathrow to Vientiane

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Vientiane flights
Stansted to Vientiane flights
London City to Vientiane flights
Stansted to Luang Prabang flights
Gatwick to Luang Prabang flights
Heathrow to Luang Prabang flights

Top 3 airlines flying from Heathrow to Vientiane

Discover the top 3 airlines that operate flights from Heathrow to Vientiane. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£474Average£538FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£576Average£658FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£777Average£819FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Vientiane?

When you search for this flight from Heathrow to Vientiane, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Vientiane?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Vientiane by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Vientiane with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Vientiane with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Vientiane become cheaper?

Yes! Start tracking prices for Heathrow to Vientiane flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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