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Cheap flights from London Heathrow Airport to Vientiane from £297

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — VTE
16 Jul — 23 Jul1
1 adult

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 11 July 2025.

Round-trip from

£453

One-way from

£297

Popular in

July

Cheapest in

June

Average price

£1,227
China Southern
  • China Southern
  • 1/11-16/11
  • 3 total stops
  • 67h 45m total
  • London to Vientiane
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Hainan Airlines
  • Hainan Airlines
  • 15/10
  • 1 total stop
  • 16h 30m total
  • London to Vientiane
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£85 potential increase over avg. return price).
Search Deals
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 July 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 11 July 2025.

Sat 1/1121:30LHR - VTE
2 stops37h 55mChina Southern
Sun 16/1119:25VTE - LHR
1 stop29h 50mChina Southern
Deal found 9/7£453
Wed 22/1022:00LHR - VTE
1 stop16h 30mMultiple Airlines
Tue 4/1101:00VTE - LHR
1 stop23h 30mMultiple Airlines
Deal found 10/7£582
Thu 23/1021:20LHR - VTE
2 stops30h 15mChina Eastern
Tue 4/1118:40VTE - LHR
2 stops29h 50mChina Eastern
Deal found 10/7£728
Mon 20/1018:55LHR - VTE
3 stops42h 20mVietnam Airlines
Mon 3/1111:35VTE - LHR
2 stops26h 40mVietnam Airlines
Deal found 10/7£756

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 11 July 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

Sat 1/11

21:30-18:25

2 stops37h 55m

Vientiane Wattay

Sun 16/11

19:25-18:15

1 stop29h 50m

£453

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 22/10

22:00-20:30

1 stop16h 30m

Vientiane Wattay

Tue 4/11

01:00-17:30

1 stop23h 30m

£582

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 23/10

21:20-09:35

2 stops30h 15m

Vientiane Wattay

Tue 4/11

18:40-17:30

2 stops29h 50m

£728

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 20/10

18:55-19:15

3 stops42h 20m

Vientiane Wattay

Mon 3/11

11:35-07:15

2 stops26h 40m

£756

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 15/10

22:00-20:30

1 stop16h 30m

£297

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Wed 15/10

22:05-17:45

2 stops37h 40m

£416

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 20/12

22:00-18:25

1 stop37h 25m

£878

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 20/12

21:00-14:20

3 stops58h 20m

£1,188

Flights are sorted by cheapest return flights first.

Deals found on 10/7

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 much does it cost for a return flight from London Heathrow Airport to Vientiane?

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 11 July 2025.
Check out reviews from past customers who have flown with Hainan Airlines, China Southern, andVietnam Airlines from London Heathrow Airport to Vientiane to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Boarding

8.6

Crew

8.9

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Hainan Airlines
8.2
Very Good
41 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Boarding

8.6

Crew

8.9

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
China Southern
7.6
Good
103 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Boarding

8.6

Crew

8.9

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Vietnam Airlines
7.5
Good
195 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Boarding

8.6

Crew

8.9

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
China Eastern
7.2
Good
151 reviews
Hainan Airlines
8.2
Very Good
41 reviews
Check prices

Boarding

8.6

Crew

8.9

Entertainment

7.6

Comfort

8.1

Food

8.6

Overall

8.2

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely 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 £453, 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 £728 and £756, respectively. You may be able to fly from London Heathrow Airport to Vientiane for 46% 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 Hainan Airlines. According to our data, you can fly for as low as £297. Users have also found prices from £878 and £1,188 on China Southern and China Eastern, 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
Gatwick to Luang Prabang flights
Heathrow to Luang Prabang flights
Stansted to Luang Prabang 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£466Average£524FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£566Average£647FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£764Average£806FlexibilityNo 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?

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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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