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Cheap flights from London Heathrow Airport to Asuncion from £405

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ASU
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 November 2025.

Round-trip from

£815

One-way from

£405

Popular in

July

Cheapest in

September

Average price

£909
LATAM Airlines
  • LATAM Airlines
  • 2/3-16/3
  • 2 total stops
  • 35h 45m total
  • London to Asuncion
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20/4
  • 20/4
  • 2 total stops
  • 35h 50m total
  • London to Asuncion
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£143 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 27 November 2025.

Thu 25/1209:00LHR - ASU
2 stops29h 30mMultiple Airlines
Mon 26/112:20ASU - LHR
2 stops28h 15mMultiple Airlines
Deal found 24/11£1,001
Thu 25/1220:15LHR - ASU
1 stop16h 55mLATAM Airlines
Mon 26/111:05ASU - LHR
2 stops24h 00mLATAM Airlines
Deal found 24/11£1,222
Sat 29/1120:15LHR - ASU
1 stop16h 50mLATAM Airlines
Thu 4/1218:30ASU - LHR
1 stop16h 35mLATAM Airlines
Deal found 24/11£1,309
Sat 29/1108:50LHR - ASU
3 stops30h 35mMultiple Airlines
Wed 3/1203:35ASU - LHR
2 stops31h 30mMultiple Airlines
Deal found 24/11£1,399

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 27 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Asuncion that are best for you.

Fly from

Heathrow

Fly to

Asuncion

Route

Depart

Return

Price

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

£815

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 2/3

13:35-00:15

2 stops37h 40m

Asuncion Silvio Pettirossi

Mon 16/3

06:42-10:15

2 stops24h 33m

£836

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Wed 4/3

13:25-10:10

2 stops23h 45m

Asuncion Silvio Pettirossi

Sun 8/3

13:20-18:15

2 stops25h 55m

£842

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 27/4

21:20-10:15

1 stop16h 55m

Asuncion Silvio Pettirossi

Sun 10/5

18:30-15:05

1 stop16h 35m

£851

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Fri 16/1

20:15-12:25

1 stop19h 10m

Asuncion Silvio Pettirossi

Thu 5/2

18:30-14:05

1 stop16h 35m

£861

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 27/4

10:30-12:15

2 stops53h 45m

Asuncion Silvio Pettirossi

Sun 10/5

18:30-18:55

2 stops20h 25m

£881

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 20/4

20:50-04:40

2 stops35h 50m

£405

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Fri 6/3

18:45-11:30

3 stops43h 45m

£414

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sat 25/4

20:00-11:15

3 stops43h 15m

£416

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sat 28/2

09:55-10:10

3 stops51h 15m

£451

Flights are sorted by cheapest return flights first.

Deals found on 23/11

Showing 1-10 of 15 results
1
2

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 £633). Flying from London Heathrow Airport to Asuncion in July is currently the most expensive (average of £1,186). 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 27 November 2025.
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
7.5
Good
1,886 reviews
Check prices

Comfort

7.3

Crew

8.0

Entertainment

7.0

Overall

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP
LATAM Airlines
7.5
Good
1,886 reviews
LATAM Airlines
7.5
Good
1,886 reviews
Check prices

Comfort

7.3

Crew

8.0

Entertainment

7.0

Overall

7.5

Boarding

7.6

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2025

MIA - GRU

Terrible baggage service! Almost lost my connection flight in SP

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 and Lufthansa fly from London Heathrow Airport to Asuncion in about 19h 10m. The time it takes to get you to your destination can typically vary by up to 18h 30m. The distance from London Heathrow Airport to Asuncion is about 6322 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 Heathrow Airport to Asuncion round-trip?

    According to our current data, LATAM Airlines (£822), offers the cheapest pricing from London Heathrow Airport to Asuncion. Users have found that LATAM Airlines is 19% 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 £633). Flying from London Heathrow Airport to Asuncion in July is currently the most expensive (average of £1,186). 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 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£822Average£1,029FlexibilityNo 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.

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