Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Asuncion from £425

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ASU
20 May — 27 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Asuncion

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Asuncion
Explore the most affordable flight options available from Heathrow to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 April 2026.

Wed 7/1022:05
LHR
-
ASU
1 stop34h 35m
Multiple Airlines
Wed 4/1113:10
ASU
-
LHR
2 stops20h 35m
Multiple Airlines
Deal found 14/4£832
Thu 5/1121:40
LHR
-
ASU
1 stop34h 35m
Avianca
Thu 19/1108:20
ASU
-
LHR
1 stop27h 15m
Avianca
Deal found 19/4£834
Tue 3/1121:40
LHR
-
ASU
1 stop34h 35m
Avianca
Thu 19/1108:20
ASU
-
LHR
1 stop27h 15m
Avianca
Deal found 19/4£870
Sun 15/1121:40
LHR
-
ASU
1 stop34h 35m
Avianca
Thu 19/1108:20
ASU
-
LHR
1 stop27h 15m
Avianca
Deal found 14/4£871
Wed 13/522:05
LHR
-
ASU
1 stop34h 35m
Avianca
Sun 7/608:25
ASU
-
LHR
1 stop27h 10m
Avianca
Deal found 16/4£872
Tue 12/521:20
LHR
-
ASU
1 stop17h 15m
LATAM Airlines
Wed 10/611:25
ASU
-
LHR
2 stops23h 40m
LATAM Airlines
Deal found 16/4£897
Tue 12/521:20
LHR
-
ASU
1 stop17h 15m
LATAM Airlines
Tue 9/611:10
ASU
-
LHR
1 stop23h 55m
LATAM Airlines
Deal found 16/4£908
Tue 12/521:20
LHR
-
ASU
1 stop17h 15m
LATAM Airlines
Sun 7/613:15
ASU
-
LHR
2 stops25h 55m
LATAM Airlines
Deal found 16/4£919
Wed 13/518:45
LHR
-
ASU
2 stops19h 50m
LATAM Airlines
Wed 10/611:25
ASU
-
LHR
2 stops23h 40m
LATAM Airlines
Deal found 16/4£934
Tue 12/521:20
LHR
-
ASU
1 stop17h 15m
LATAM Airlines
Wed 10/602:50
ASU
-
LHR
2 stops33h 30m
LATAM Airlines
Deal found 16/4£935
Sun 8/1121:40
LHR
-
ASU
1 stop34h 35m
Avianca
Thu 19/1108:20
ASU
-
LHR
1 stop27h 15m
Avianca
Deal found 19/4£942

Find flight deals from Heathrow to Asuncion

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 20 April 2026.

Round-trip from

£872

One-way from

£425

Popular in

December

Cheapest in

March

Average price

£951
Avianca
  • Avianca
  • 13/5-7/6
  • 2 total stops
  • 61h 45m total
  • London to Asuncion
Search Deals
4/5
  • 4/5
  • 3 total stops
  • 57h 20m total
  • London to Asuncion
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 20 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Asuncion that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Fri 29/5

22:05-04:40

1 stop34h 35m

Asuncion Silvio Pettirossi

Fri 5/6

08:10-20:45

2 stops32h 35m

£1,006
Fastest return journey

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sun 17/5

21:20-10:35

1 stop17h 15m

Asuncion Silvio Pettirossi

Sun 24/5

18:30-15:05

1 stop16h 35m

£1,021

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 19/5

21:20-23:55

1 stop30h 35m

Asuncion Silvio Pettirossi

Mon 25/5

02:50-18:15

2 stops35h 25m

£1,030

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sun 17/5

15:30-11:15

3 stops23h 45m

Asuncion Silvio Pettirossi

Sun 24/5

18:30-10:20

2 stops35h 50m

£1,058

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Thu 7/5

08:40-05:24

2 stops24h 44m

Asuncion Silvio Pettirossi

Tue 2/6

12:05-13:45

2 stops21h 40m

£1,209

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Wed 7/10

14:25-10:35

3 stops24h 10m

Asuncion Silvio Pettirossi

Wed 4/11

13:10-13:00

2 stops20h 50m

£1,219

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sat 9/5

18:00-00:08

2 stops34h 08m

Asuncion Silvio Pettirossi

Sun 31/5

06:33-20:40

2 stops34h 07m

£1,320

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Thu 7/5

11:25-00:08

2 stops40h 43m

Asuncion Silvio Pettirossi

Sat 30/5

06:33-10:40

2 stops48h 07m

£1,322

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Wed 6/5

16:40-05:24

2 stops40h 44m

Asuncion Silvio Pettirossi

Wed 3/6

06:33-12:35

2 stops26h 02m

£1,322

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 5/5

10:25-05:24

2 stops22h 59m

Asuncion Silvio Pettirossi

Wed 3/6

06:33-06:55

2 stops44h 22m

£1,322

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Asuncion

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

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Asuncion (average of £779). Flying from London Heathrow Airport to Asuncion in December is currently the most expensive (average of £1,553). 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 Heathrow Airport to Asuncion?

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 20 April 2026.
Get a feel of what it's like to fly with LATAM Airlines from London Heathrow Airport to Asuncion by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.4
Good
1,910 reviews
Check prices

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.6

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Juan,Apr 2026

BOG - CLO

Very old aircraft and it was very dirty in the seats and floor
LATAM Airlines
7.4
Good
1,910 reviews
LATAM Airlines
7.4
Good
1,910 reviews
Check prices

Crew

8.0

Overall

7.4

Entertainment

7.0

Food

6.6

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Juan,Apr 2026

BOG - CLO

Very old aircraft and it was very dirty in the seats and floor

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

    Located just 7.8 mi from the city center, Asuncion Silvio Pettirossi is the airport most travelers will use when flying to Asuncion from London Heathrow. Booking flights from London Heathrow to Silvio Pettirossi (ASU) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.

  • How long is the flight from London Heathrow Airport to Asuncion?

    Airlines like LATAM Airlines fly from London Heathrow Airport to Asuncion in about 17h 15m. The time it takes to get you to your destination can typically vary by up to . The distance from London Heathrow Airport to Asuncion is about 6322 mi.

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

    According to our current data, LATAM Airlines (£804), offers the cheapest pricing from London Heathrow Airport to Asuncion. Users have found that LATAM Airlines is 23% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Asuncion?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Asuncion (average of £779). Flying from London Heathrow Airport to Asuncion in December is currently the most expensive (average of £1,553). 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.

Alternative routes for Heathrow to Asuncion

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

Top airline flying from Heathrow to Asuncion

Discover the top airline that operate flights from Heathrow 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 20 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£804Average£1,108FlexibilityNo 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 Heathrow to Asuncion?

Cheapflights makes it easy to find Heathrow to Asuncion flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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

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

Yes, we can. To see specific flights from Heathrow to Asuncion with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Asuncion from Heathrow today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.