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Cheap flights from London Heathrow Airport to Asuncion from £436

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ASU
5 Sep — 12 Sep1
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 6 August 2026.

Wed 16/922:05 -
1 stop34h 35m
Wed 23/908:25 -
1 stop27h 10m
Deal found 1/8£722
Fri 18/922:05 -
1 stop34h 35m
Fri 25/908:25 -
1 stop27h 10m
Deal found 4/8£731
Sun 25/1021:40 -
1 stop34h 35m
Sat 28/1108:20 -
1 stop27h 15m
Deal found 1/8£752
Wed 16/922:05 -
1 stop34h 35m
Fri 25/908:25 -
1 stop27h 10m
Deal found 4/8£755
Mon 7/921:20 -
1 stop17h 20m
Mon 28/913:10 -
1 stop21h 55m
Deal found 5/8£795
Mon 21/922:05 -
1 stop34h 35m
Thu 10/1208:20 -
1 stop27h 15m
Deal found 2/8£835
Wed 16/906:15 -
2 stops21h 40m
Wed 23/918:35 -
1 stop16h 30m
Deal found 1/8£843
Thu 3/921:20 -
1 stop18h 55m
Thu 24/918:35 -
1 stop16h 30m
Deal found 4/8£852
Tue 15/921:20 -
1 stop17h 10m
Mon 21/902:55 -
1 stop32h 10m
Deal found 1/8£861
Wed 16/906:15 -
2 stops21h 40m
Tue 29/911:30 -
1 stop23h 35m
Deal found 4/8£865
Mon 19/1018:45 -
2 stops25h 30m
Thu 26/1113:20 -
1 stop21h 45m
Deal found 1/8£867
Mon 19/1018:45 -
2 stops25h 30m
Sun 29/1119:00 -
1 stop16h 05m
Deal found 1/8£867

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 6 August 2026.

Round-trip from

£722

One-way from

£436

Popular in

August

Cheapest in

July

Average price

£3,688
Avianca
  • Avianca
  • 16/9-23/9
  • 2 total stops
  • 61h 45m total
  • London to Asuncion
Search Deals
Avianca
  • Avianca
  • 23/9
  • 1 total stop
  • 34h 35m total
  • London to Asuncion
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£345 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 21% potential price decrease (£165 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 6 August 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 London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Wed 2/9

22:05-04:40

1 stop34h 35m

Asuncion Silvio Pettirossi

Tue 8/9

01:47-09:15

2 stops27h 28m

£1,062

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Fri 23/10

16:40-00:03

2 stops35h 23m

Asuncion Silvio Pettirossi

Fri 27/11

06:31-10:50

2 stops49h 19m

£1,090

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Sat 23/1

17:55-12:30

2 stops45h 35m

Asuncion Silvio Pettirossi

Mon 22/2

13:20-14:55

2 stops46h 35m

£1,110

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Sun 24/1

06:25-12:30

2 stops33h 05m

Asuncion Silvio Pettirossi

Sat 20/2

13:15-22:30

2 stops54h 15m

£1,120

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Thu 28/1

06:25-12:25

2 stops57h 00m

Asuncion Silvio Pettirossi

Sun 21/2

13:15-16:20

2 stops48h 05m

£1,156

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Mon 25/1

22:40-05:36

3 stops33h 56m

Asuncion Silvio Pettirossi

Sun 21/2

13:15-09:45

2 stops41h 30m

£1,232
Fastest return journey

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Sat 19/9

08:55-10:30

3 stops29h 35m

Asuncion Silvio Pettirossi

Fri 11/12

13:15-16:20

2 stops24h 05m

£1,266

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Wed 2/9

19:15-10:30

3 stops43h 15m

Asuncion Silvio Pettirossi

Wed 9/9

13:10-08:15

3 stops39h 05m

£1,359

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Sat 5/9

18:30-05:31

3 stops39h 01m

Asuncion Silvio Pettirossi

Sun 31/1

13:15-09:45

2 stops41h 30m

£1,401

LondonAsuncion

LHR London Heathrow - ASU Asuncion Silvio Pettirossi

LHRASU

London Heathrow

Tue 8/12

11:20-12:30

2 stops28h 10m

Asuncion Silvio Pettirossi

Mon 4/1

04:01-22:30

2 stops39h 29m

£1,420

Flights are sorted by cheapest return flights first.

Deals found on 4/8

Showing 1-10 of 20 resultsSorted by cheapest first
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, July is the cheapest month in which you can book a flight from London Heathrow Airport to Asuncion (average of £567). Flying from London Heathrow Airport to Asuncion in August is currently the most expensive (average of £3,688). 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.

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 6 August 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
1,973 reviews
Check prices

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Entertainment

7.0

Boarding

7.5

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
1,973 reviews
LATAM Airlines
7.4
Good
1,973 reviews
Check prices

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.7

Entertainment

7.0

Boarding

7.5

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 United Airlines and Turkish Airlines fly from London Heathrow Airport to Asuncion in about 35h 23m. The time it takes to get you to your destination can typically vary by up to 10h 12m. 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 (£807), offers the cheapest pricing from London Heathrow Airport to Asuncion. Users have found that LATAM Airlines is 35% 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, July is the cheapest month in which you can book a flight from London Heathrow Airport to Asuncion (average of £567). Flying from London Heathrow Airport to Asuncion in August is currently the most expensive (average of £3,688). 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

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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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£807Average£1,089FlexibilityNo 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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