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Cheap flights from London to Asuncion from £404

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ASU
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Asuncion

Enter your travel dates to find the best prices.

Cheapest flights from London to Asuncion
Explore the most affordable flight options available from London to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Tue 10/321:40
LHR
-
ASU
1 stop34h 35m
Avianca
Tue 24/308:20
ASU
-
LHR
1 stop27h 15m
Avianca
Deal found 21/1£703
Wed 10/606:55
LHR
-
ASU
2 stops32h 20m
Multiple Airlines
Thu 18/603:35
ASU
-
LHR
2 stops34h 05m
Multiple Airlines
Deal found 21/1£728
Mon 20/422:05
LHR
-
ASU
1 stop34h 35m
Avianca
Sun 3/508:10
ASU
-
LHR
1 stop27h 25m
Avianca
Deal found 19/1£730
Mon 20/420:50
LHR
-
ASU
2 stops35h 50m
Multiple Airlines
Sun 3/508:10
ASU
-
LHR
1 stop27h 25m
Multiple Airlines
Deal found 19/1£795
Fri 11/922:05
LHR
-
ASU
1 stop34h 35m
Avianca
Sun 27/908:10
ASU
-
LHR
1 stop27h 25m
Avianca
Deal found 21/1£819
Mon 14/906:15
LHR
-
ASU
2 stops33h 00m
Air France
Mon 28/912:05
ASU
-
LHR
2 stops24h 30m
Air France
Deal found 21/1£824
Fri 6/306:30
LHR
-
ASU
2 stops32h 00m
Multiple Airlines
Sat 21/308:20
ASU
-
LHR
1 stop27h 15m
Multiple Airlines
Deal found 20/1£835
Tue 10/306:00
LHR
-
ASU
2 stops31h 30m
LATAM Airlines
Tue 24/313:20
ASU
-
LHR
1 stop21h 45m
LATAM Airlines
Deal found 21/1£838
Mon 9/306:15
LHR
-
ASU
2 stops33h 10m
LATAM Airlines
Mon 23/318:30
ASU
-
LHR
1 stop16h 35m
LATAM Airlines
Deal found 21/1£841
Mon 2/320:15
LHR
-
ASU
1 stop19h 10m
LATAM Airlines
Mon 16/318:30
ASU
-
LHR
1 stop16h 35m
LATAM Airlines
Deal found 20/1£844
Wed 10/617:25
LGW
-
ASU
1 stop17h 00m
Air Europa
Fri 19/612:50
ASU
-
LGW
1 stop16h 10m
Air Europa
Deal found 21/1£855
Wed 10/607:00
LGW
-
ASU
2 stops32h 15m
Multiple Airlines
Fri 19/612:05
ASU
-
LGW
2 stops30h 20m
Multiple Airlines
Deal found 21/1£856

Find flight deals from London to Asuncion

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Asuncion (ASU). 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 22 January 2026.

Round-trip from

£703

One-way from

£404

Popular in

December

Cheapest in

March

Average price

£924
Avianca
  • Avianca
  • 10/3-24/3
  • 2 total stops
  • 61h 50m total
  • London to Asuncion
Search Deals
Avianca
  • Avianca
  • 15/3
  • 1 total stop
  • 34h 35m total
  • London to Asuncion
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Asuncion 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 22 January 2026.
Use the filters below to find and compare flights from London to Asuncion that are best for you.

Fly from

London

Fly to

Asuncion

Route

Depart

Return

Price

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 20/4

20:50-04:40

2 stops35h 50m

Asuncion Silvio Pettirossi

Sun 3/5

08:10-15:35

1 stop27h 25m

£795

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 2/3

20:15-12:25

1 stop19h 10m

Asuncion Silvio Pettirossi

Mon 16/3

18:30-14:05

1 stop16h 35m

£844

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 9/3

20:15-23:30

1 stop30h 15m

Asuncion Silvio Pettirossi

Mon 23/3

18:30-14:05

1 stop16h 35m

£844

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 10/3

06:00-23:30

2 stops20h 30m

Asuncion Silvio Pettirossi

Tue 24/3

13:20-14:05

1 stop21h 45m

£849

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 9/3

20:15-12:25

1 stop19h 10m

Asuncion Silvio Pettirossi

Wed 11/3

13:20-14:05

1 stop21h 45m

£852

LondonAsuncion

LGW - ASU

LGWASU

London Gatwick

Tue 21/4

06:00-06:25

1 stop28h 25m

Asuncion Silvio Pettirossi

Tue 5/5

12:50-22:35

1 stop29h 45m

£863

LondonAsuncion

LGW - ASU

LGWASU

London Gatwick

Tue 10/3

17:25-07:30

1 stop17h 05m

Asuncion Silvio Pettirossi

Tue 24/3

13:55-16:25

1 stop23h 30m

£891

LondonAsuncion

LGW - ASU

LGWASU

London Gatwick

Mon 9/3

11:45-12:25

2 stops27h 40m

Asuncion Silvio Pettirossi

Wed 11/3

18:30-19:00

2 stops21h 30m

£893

LondonAsuncion

LGW - ASU

LGWASU

London Gatwick

Wed 15/4

10:00-06:25

1 stop24h 25m

Asuncion Silvio Pettirossi

Wed 22/4

12:50-16:25

1 stop23h 35m

£902

LondonAsuncion

LGW - ASU

LGWASU

London Gatwick

Tue 21/4

17:25-06:25

1 stop17h 00m

Asuncion Silvio Pettirossi

Mon 4/5

12:50-16:25

1 stop23h 35m

£902

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 36 results
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Best time to book a flight from London to Asuncion

Have a flexible travel schedule? Discover the best time to fly to Asuncion 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 Asuncion

How far ahead should I book a flight from London to Asuncion?

Use this chart to determine the optimal time to book a return flight from London to Asuncion. Price data was last updated on 16 January 2026.

Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Asuncion. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from London to Asuncion (average of £622). Flying from London to Asuncion in July is currently the most expensive (average of £1,166). 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.

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

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

Madrid (MAD) – chosen by Cheapflights users on 56% of one-stop itineraries from London to Asuncion on Cheapflights.

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

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

Sao Paulo (GRU) is the most affordable one-stop option, with an average return flight price of £974.

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

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

Flights via Madrid (MAD) have the shortest average one-way travel time for one-stop routes: 17h 43m.

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

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

Flights via Madrid (MAD) offer the fastest connection on this route, with an average stopover time of 2h 34m.

Reviews of airlines servicing Asuncion

Get insights into the airlines that provide service to Asuncion. 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 Asuncion. Reviews last updated 22 January 2026.
See what other customers who have flown with LATAM Airlines, Air France, andUnited Airlines from London to Asuncion have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,913 reviews
Check prices

Crew

8.0

Comfort

7.3

Boarding

7.6

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken
LATAM Airlines
7.5
Good
1,913 reviews
LATAM Airlines
7.5
Good
1,913 reviews
Check prices

Crew

8.0

Comfort

7.3

Boarding

7.6

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken
Air France
7.4
Good
1,523 reviews
LATAM Airlines
7.5
Good
1,913 reviews
Check prices

Crew

8.0

Comfort

7.3

Boarding

7.6

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken
United Airlines
7.4
Good
9,191 reviews
LATAM Airlines
7.5
Good
1,913 reviews
Check prices

Crew

8.0

Comfort

7.3

Boarding

7.6

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken
Air Europa
6.9
Okay
588 reviews
LATAM Airlines
7.5
Good
1,913 reviews
Check prices

Crew

8.0

Comfort

7.3

Boarding

7.6

Overall

7.5

Entertainment

7.0

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Related info for your journey

Find useful and relevant information for your journey from London to Asuncion. 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 Asuncion from London?

    Asuncion Silvio Pettirossi (ASU) is the airport you will fly into if you book a flight from London to Asuncion. You should not have trouble finding flights to Silvio Pettirossi from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Asuncion airport from London. It is only a 7.8 mi journey from Silvio Pettirossi (ASU) to Asuncion’s city center.

  • How long is the flight from London to Asuncion?

    Departing from London to Asuncion will take you 17h 05m. The distance from London to Asuncion is about 6317 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from London to Asuncion round-trip?

    Our cheapest airline available from London to Asuncion is LATAM Airlines. Our recent data shows that you can find tickets from as low as £809 on this airline. This flight start at 15% lower than the current average price 3 months from now.

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

    The most popular flight routes from London to Asuncion are London Heathrow - Asuncion Silvio Pettirossi, London Gatwick - Asuncion Silvio Pettirossi and London City - Asuncion Silvio Pettirossi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Asuncion 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 Asuncion?

    Currently, March is the cheapest month in which you can book a flight from London to Asuncion (average of £622). Flying from London to Asuncion in July is currently the most expensive (average of £1,166). 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

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Alternative routes for London to Asuncion

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Asuncion flights
Gatwick to Asuncion flights
London City to Asuncion flights
Manchester to Asuncion flights

Top airline flying from London to Asuncion

Discover the top airline that operate flights from London to Asuncion. 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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£809Average£1,148FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines 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 Asuncion?

Deals for London to Asuncion flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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

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

Need flexible booking options for your flight to Asuncion from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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