Cheap flights from London Heathrow Airport to Asuncion from £397

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ASU
13 Oct — 20 Oct1
1 adult
1 adult, Economy

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 13 September 2025.

Round-trip from

£697

One-way from

£397

Popular in

July

Cheapest in

March

Average price

£814
Avianca
  • Avianca
  • 22/10-30/10
  • 2 total stops
  • 61h 50m total
  • London to Asuncion
Avianca
  • Avianca
  • 6/11
  • 1 total stop
  • 34h 35m total
  • London to Asuncion
Highest demand for flights based on searches. 14% potential increase in price (£128 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£30 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Heathrow to Asuncion

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 13 September 2025.

Wed 22/1022:05LHR - ASU
1 stop34h 35mAvianca
Thu 30/1008:20ASU - LHR
1 stop27h 15mAvianca
Deal found 12/9£697
Wed 8/1022:05LHR - ASU
1 stop34h 35mAvianca
Wed 15/1008:10ASU - LHR
1 stop27h 25mAvianca
Deal found 10/9£723
Wed 22/1022:05LHR - ASU
1 stop34h 35mAvianca
Tue 25/1108:20ASU - LHR
1 stop27h 15mAvianca
Deal found 12/9£751
Tue 28/1021:40LHR - ASU
1 stop34h 35mMultiple Airlines
Tue 4/1113:20ASU - LHR
1 stop21h 45mMultiple Airlines
Deal found 13/9£767
Wed 15/1022:05LHR - ASU
1 stop34h 35mAvianca
Tue 2/1208:20ASU - LHR
1 stop27h 15mAvianca
Deal found 12/9£805
Mon 17/1108:25LHR - ASU
2 stops23h 50mMultiple Airlines
Mon 24/1118:30ASU - LHR
1 stop16h 35mMultiple Airlines
Deal found 11/9£823
Mon 20/1022:05LHR - ASU
1 stop34h 35mAvianca
Tue 28/1008:20ASU - LHR
1 stop27h 15mAvianca
Deal found 12/9£824
Wed 22/1022:05LHR - ASU
1 stop34h 35mMultiple Airlines
Mon 3/1118:30ASU - LHR
2 stops20h 45mMultiple Airlines
Deal found 12/9£826
Mon 17/1120:15LHR - ASU
1 stop19h 10mLATAM Airlines
Mon 24/1118:30ASU - LHR
1 stop16h 35mLATAM Airlines
Deal found 11/9£830

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 13 September 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

Tue 28/10

21:40-05:15

1 stop34h 35m

Asuncion Silvio Pettirossi

Tue 4/11

13:20-14:05

1 stop21h 45m

£767

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 2/3

15:45-12:25

2 stops23h 40m

Asuncion Silvio Pettirossi

Mon 16/3

18:30-14:05

1 stop16h 35m

£823

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 20/10

22:05-04:40

1 stop34h 35m

Asuncion Silvio Pettirossi

Tue 2/12

08:20-14:35

1 stop27h 15m

£878

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 9/3

17:25-12:25

2 stops22h 00m

Asuncion Silvio Pettirossi

Mon 23/3

18:30-14:05

1 stop16h 35m

£879

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Fri 14/11

08:15-14:25

3 stops33h 10m

£482

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Wed 12/11

08:15-11:30

2 stops30h 15m

£483

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 30/12

18:50-05:15

2 stops37h 25m

£483

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 11/11

08:15-11:30

2 stops30h 15m

£483

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Thu 6/11

18:50-05:15

2 stops37h 25m

£496

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sat 15/11

19:05-11:30

3 stops43h 25m

£545

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 14 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’s the top stopover airport for flights from London Heathrow Airport to Asuncion?

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

Sao Paulo (GRU) – chosen by Cheapflights users on 94% of one-stop itineraries from London Heathrow Airport to Asuncion on Cheapflights.

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

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

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 18h 17m.

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

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

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 18h 17m.

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

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

Flights via Sao Paulo (GRU) offer the fastest connection on this route, with an average stopover time of 4h 05m.

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 13 September 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.

Food

6.7

Overall

7.5

Comfort

7.4

Crew

8.0

Entertainment

7.0

Boarding

7.6

Reviews

1 / 20
8.0
Excellent

Darrel,Sept 2025

LIM - GRU

The Wi-Fi was not working, so there was no in-flight entertainment. The biggest disappointment was that my Delta diamond status did not transfer any status to my LATAM flight. I WOULD’VE THOUGHT THAT THERE WOULD BE A BETTER WORKING AGREEMENT BETWEEN THE AIRLINES.

Food

6.7

Overall

7.5

Comfort

7.4

Crew

8.0

Entertainment

7.0

Boarding

7.6

Reviews

1 / 20
8.0
Excellent

Darrel,Sept 2025

LIM - GRU

The Wi-Fi was not working, so there was no in-flight entertainment. The biggest disappointment was that my Delta diamond status did not transfer any status to my LATAM flight. I WOULD’VE THOUGHT THAT THERE WOULD BE A BETTER WORKING AGREEMENT BETWEEN THE AIRLINES.

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 23h 40m. 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 (£802), offers the cheapest pricing from London Heathrow Airport to Asuncion. Users have found that LATAM Airlines is 20% 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.

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.

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 13 September 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£802Average£1,057FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

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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?

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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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