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Cheap flights from London Heathrow Airport to Vientiane from £317

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 19/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — VTE
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Vientiane Wattay are usually found in January or November, 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 25 March 2025.

Round-trip from

£769

One-way from

£317

Popular in

December

Cheapest in

January

Average price

£826
China Southern
  • China Southern
  • 30/6-24/7
  • 3 total stops
  • 69h 45m total
  • London to Vientiane
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China Southern
  • China Southern
  • 19/4
  • 1 total stop
  • 37h 35m total
  • London to Vientiane
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£27 potential savings vs. average return price).
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Average for round-trip flights in March 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 25 March 2025.

Thu 6/1121:30LHR - VTE
2 stops37h 55mChina Southern
Wed 19/1119:25VTE - LHR
1 stop29h 50mChina Southern
Deal found 25/3£625
Wed 3/1214:55LHR - VTE
2 stops21h 50mMultiple Airlines
Wed 17/1213:55VTE - LHR
2 stops24h 25mMultiple Airlines
Deal found 23/3£783
Thu 6/1121:00LHR - VTE
1 stop18h 55mChina Eastern
Tue 18/1123:55VTE - LHR
1 stop24h 35mChina Eastern
Deal found 25/3£810
Thu 6/1111:50LHR - VTE
1 stop18h 15mThai Airways
Wed 19/1120:30VTE - LHR
1 stop30h 05mThai Airways
Deal found 25/3£820
Wed 3/1206:20LHR - VTE
3 stops29h 40mVietnam Airlines
Wed 17/1211:35VTE - LHR
2 stops26h 40mVietnam Airlines
Deal found 23/3£829
Thu 21/809:25LHR - VTE
1 stop20h 30mSingapore Airlines
Sun 31/812:30VTE - LHR
1 stop37h 00mSingapore Airlines
Deal found 24/3£943

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 25 March 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

22:10-17:45

1 stop37h 35m

Vientiane Wattay

Thu 24/7

18:45-20:55

2 stops32h 10m

£769

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 21/8

21:45-21:50

2 stops18h 05m

Vientiane Wattay

Sun 31/8

13:30-19:30

3 stops36h 00m

£823

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 10/4

21:20-09:35

2 stops30h 15m

Vientiane Wattay

Mon 14/4

18:50-18:40

2 stops29h 50m

£843

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 21/8

09:25-11:55

1 stop20h 30m

Vientiane Wattay

Sun 31/8

12:30-19:30

1 stop37h 00m

£943

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 21/8

19:10-19:15

2 stops18h 05m

Vientiane Wattay

Sun 31/8

20:00-17:05

1 stop27h 05m

£1,129

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 19/4

22:10-17:45

1 stop37h 35m

£317

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 19/4

20:20-17:45

3 stops39h 25m

£350

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Fri 18/4

21:20-09:35

3 stops30h 15m

£401

Flights are sorted by cheapest return flights first.

Deals found on 24/3

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 21 March 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 25 March 2025.
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very Good
1,284 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Vietnam Airlines
7.6
Good
192 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
China Southern
7.4
Good
91 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
China Eastern
7.1
Good
135 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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 £769, 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 Singapore Airlines - these airlines can fly you to your destination from £843 and £943, respectively. You may be able to fly from London Heathrow Airport to Vientiane for 10% less than the average price by searching for these airlines.

  • 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 Luang Prabang flights
Heathrow to Luang Prabang flights
Stansted to Luang Prabang flights
Gatwick to Vientiane flights
Stansted to Vientiane flights
London City to Vientiane 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£498Average£556FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£596Average£673FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£803Average£850FlexibilityNo 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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