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Cheap flights from London 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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — VTE
21 Mar — 28 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Vientiane

Enter your travel dates to find the best prices.

Cheapest flights from London to Vientiane
Explore the most affordable flight options available from London to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 February 2026.

Thu 29/1010:30
LGW
-
VTE
1 stop30h 35m
China Eastern
Wed 11/1101:05
VTE
-
LGW
1 stop36h 25m
China Eastern
Deal found 16/2£531
Mon 20/412:00
LGW
-
VTE
1 stop16h 30m
China Southern
Thu 30/411:30
VTE
-
LGW
1 stop25h 35m
China Southern
Deal found 19/2£532
Sat 25/422:10
LHR
-
VTE
1 stop34h 35m
China Southern
Sat 9/511:30
VTE
-
LHR
1 stop37h 30m
China Southern
Deal found 18/2£537
Mon 2/319:35
LHR
-
VTE
1 stop31h 55m
Multiple Airlines
Mon 16/318:00
VTE
-
LHR
2 stops30h 30m
Multiple Airlines
Deal found 19/2£543
Mon 2/319:35
LHR
-
VTE
1 stop36h 30m
China Southern
Mon 16/316:25
VTE
-
LHR
1 stop33h 10m
China Southern
Deal found 19/2£545
Wed 4/1122:00
LHR
-
VTE
1 stop34h 05m
China Southern
Wed 18/1116:25
VTE
-
LHR
1 stop33h 10m
China Southern
Deal found 19/2£548
Thu 7/519:00
LHR
-
VTE
2 stops35h 00m
Multiple Airlines
Thu 21/518:50
VTE
-
LHR
3 stops53h 50m
Multiple Airlines
Deal found 18/2£551
Thu 12/322:15
LHR
-
VTE
2 stops30h 45m
Multiple Airlines
Tue 24/318:00
VTE
-
LHR
2 stops30h 30m
Multiple Airlines
Deal found 18/2£554
Mon 1/622:10
LHR
-
VTE
1 stop34h 35m
China Southern
Mon 15/615:50
VTE
-
LHR
1 stop33h 10m
China Southern
Deal found 18/2£557
Wed 4/1121:00
LHR
-
VTE
1 stop20h 05m
China Eastern
Wed 18/1110:05
VTE
-
LHR
2 stops38h 25m
China Eastern
Deal found 19/2£558
Thu 7/521:00
LHR
-
VTE
2 stops31h 30m
China Southern
Thu 21/511:30
VTE
-
LHR
1 stop37h 30m
China Southern
Deal found 18/2£559
Tue 17/322:00
LHR
-
VTE
1 stop29h 30m
China Southern
Tue 24/311:30
VTE
-
LHR
1 stop38h 05m
China Southern
Deal found 17/2£562

Find flight deals from London to Vientiane

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 19 February 2026.

Round-trip from

£532

One-way from

£297

Popular in

December

Cheapest in

September

Average price

£656
China Southern
  • China Southern
  • 20/4-30/4
  • 2 total stops
  • 42h 05m total
  • London to Vientiane
Search Deals
15/4
  • 15/4
  • 3 total stops
  • 38h 15m total
  • London to Vientiane
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 19 February 2026.
Use the filters below to find and compare flights from London to Vientiane that are best for you.

Fly from

London

Fly to

Vientiane

Route

Depart

Return

Price

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 25/4

22:10-14:45

1 stop34h 35m

Vientiane Wattay

Sat 9/5

11:30-19:00

1 stop37h 30m

£537

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 2/3

19:35-10:30

1 stop31h 55m

Vientiane Wattay

Mon 16/3

18:00-17:30

2 stops30h 30m

£543

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 2/3

19:35-15:05

1 stop36h 30m

Vientiane Wattay

Mon 16/3

16:25-18:35

1 stop33h 10m

£545

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 7/5

19:00-12:00

2 stops35h 00m

Vientiane Wattay

Thu 21/5

18:50-18:40

3 stops53h 50m

£551

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Thu 7/5

21:00-10:30

2 stops31h 30m

Vientiane Wattay

Thu 21/5

11:30-19:00

1 stop37h 30m

£559

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Tue 17/3

22:00-10:30

1 stop29h 30m

Vientiane Wattay

Tue 24/3

11:30-18:35

1 stop38h 05m

£562

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sun 15/3

22:00-10:30

1 stop29h 30m

Vientiane Wattay

Sat 21/3

16:25-18:35

1 stop33h 10m

£563

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Mon 1/6

22:10-14:45

1 stop34h 35m

Vientiane Wattay

Mon 15/6

11:30-19:00

1 stop37h 30m

£567

LondonVientiane

LHR - VTE

LHRVTE

London Heathrow

Sat 25/4

22:10-10:30

1 stop30h 20m

Vientiane Wattay

Sat 9/5

10:35-18:40

3 stops62h 05m

£573

LondonVientiane

LGW - VTE

LGWVTE

London Gatwick

Wed 10/6

15:35-21:50

2 stops24h 15m

Vientiane Wattay

Thu 9/7

07:25-08:55

2 stops31h 30m

£588

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 53 results
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Best time to book a flight from London to Vientiane

Have a flexible travel schedule? Discover the best time to fly to Vientiane from London 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 to Vientiane

What is the cheapest month to book a flight from London to Vientiane?

Currently, September is the cheapest month in which you can book a flight from London to Vientiane (average of £404). Flying from London to Vientiane in August is currently the most expensive (average of £1,206). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

What’s the top stopover airport for flights from London to Vientiane?

Share of one-stop return flights from London to Vientiane chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Bangkok (BKK) – chosen by Cheapflights users on 64% of one-stop itineraries from London to Vientiane on Cheapflights.

What’s the cheapest stopover airport for flights from London to Vientiane?

Average return fare for one-stop flights from London to Vientiane, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Guangzhou (CAN) is the most affordable one-stop option, with an average return flight price of £510.

What’s the fastest stopover option from London to Vientiane?

Shortest average travel time for one-stop one-way flights from London to Vientiane, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 16h 02m.

Which airport typically offers the quickest stopover for flights from London to Vientiane?

Average stopover duration for one-stop one-way flights from London to Vientiane, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 3h 07m.

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 19 February 2026.
Get a feel of what it's like to fly with Thai Airways, China Southern, andChina Eastern from London to Vientiane by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Comfort

7.6

Food

7.4

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.8
Good
382 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Comfort

7.6

Food

7.4

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
China Southern
7.3
Good
137 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Comfort

7.6

Food

7.4

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
China Eastern
7.2
Good
193 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Comfort

7.6

Food

7.4

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Related info for your journey

Find useful and relevant information for your journey from London 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?

    Located just 2.8 mi from the city center, Vientiane Wattay is the airport most travelers will use when flying to Vientiane from London. Booking flights from London to Wattay (VTE) should be relatively easy as there are 0 daily inbound flights from London from 2 different airlines.

  • How long is the flight from London to Vientiane?

    Airlines like China Southern and China Eastern fly from London to Vientiane in about 23h 59m. The time it takes to get you to your destination can typically vary by up to 10h 36m. The distance between London and Vientiane is about 5782 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    According to our current data, China Eastern (£571), and Thai Airways (£791) offers the cheapest pricing from London to Vientiane. China Eastern is priced at 30% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from London to Vientiane?

    When deciding which route to take from London to Vientiane consider London Heathrow - Vientiane Wattay, London Gatwick - Vientiane Wattay or London Stansted - Vientiane Wattay as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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.

  • What is the cheapest month to book a flight from London to Vientiane?

    Currently, September is the cheapest month in which you can book a flight from London to Vientiane (average of £404). Flying from London to Vientiane in August is currently the most expensive (average of £1,206). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from London to Vientiane

Discover the top 2 airlines that operate flights from London 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 19 February 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£571Average£685FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£791Average£879FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from London to Vientiane via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Vientiane for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Vientiane flexibly with Cheapflights today.

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

Yes! Start tracking prices for London 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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