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Cheap flights from London Heathrow Airport to Asuncion from £399

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ASU
25 May — 1 Jun1
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 25 April 2026.

Wed 27/522:05
LHR
-
ASU
1 stop34h 35m
Avianca
Sun 7/608:25
ASU
-
LHR
1 stop27h 10m
Avianca
Deal found 20/4£871
Mon 8/622:05
LHR
-
ASU
1 stop34h 35m
Multiple Airlines
Mon 15/618:30
ASU
-
LHR
1 stop16h 35m
Multiple Airlines
Deal found 24/4£883
Tue 2/615:30
LHR
-
ASU
2 stops18h 55m
Multiple Airlines
Mon 15/602:50
ASU
-
LHR
1 stop32h 15m
Multiple Airlines
Deal found 23/4£892
Mon 26/1009:55
LHR
-
ASU
3 stops24h 35m
Multiple Airlines
Thu 12/1114:10
ASU
-
LHR
3 stops40h 00m
Multiple Airlines
Deal found 19/4£894
Sat 5/908:55
LHR
-
ASU
2 stops20h 45m
Air France
Sun 31/112:05
ASU
-
LHR
2 stops25h 30m
Air France
Deal found 23/4£933
Mon 19/1006:00
LHR
-
ASU
3 stops36h 00m
Multiple Airlines
Fri 6/1111:05
ASU
-
LHR
2 stops24h 00m
Multiple Airlines
Deal found 19/4£940
Tue 2/611:45
LHR
-
ASU
2 stops22h 40m
Multiple Airlines
Wed 10/613:10
ASU
-
LHR
1 stop21h 55m
Multiple Airlines
Deal found 21/4£942
Tue 2/621:20
LHR
-
ASU
1 stop18h 55m
LATAM Airlines
Tue 16/611:10
ASU
-
LHR
1 stop23h 55m
LATAM Airlines
Deal found 24/4£942
Wed 27/522:05
LHR
-
ASU
1 stop34h 35m
Avianca
Wed 10/608:25
ASU
-
LHR
1 stop27h 10m
Avianca
Deal found 20/4£944
Tue 2/621:20
LHR
-
ASU
1 stop18h 55m
LATAM Airlines
Wed 10/613:10
ASU
-
LHR
1 stop21h 55m
LATAM Airlines
Deal found 21/4£945

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 25 April 2026.

Round-trip from

£871

One-way from

£399

Popular in

December

Cheapest in

March

Average price

£953
Avianca
  • Avianca
  • 1/6-7/6
  • 2 total stops
  • 61h 45m total
  • London to Asuncion
Search Deals
6/5
  • 6/5
  • 3 total stops
  • 49h 57m 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 (£35 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 25 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

Thu 4/6

06:15-23:55

2 stops21h 40m

Asuncion Silvio Pettirossi

Wed 10/6

02:50-15:05

1 stop32h 15m

£961

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 19/10

07:05-00:03

3 stops44h 58m

Asuncion Silvio Pettirossi

Thu 5/11

06:42-16:00

3 stops30h 18m

£988

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sat 30/5

08:40-05:24

2 stops24h 44m

Asuncion Silvio Pettirossi

Mon 8/6

12:05-16:35

2 stops24h 30m

£1,000

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 22/6

19:45-01:40

2 stops33h 55m

Asuncion Silvio Pettirossi

Sat 27/6

11:10-07:40

2 stops40h 30m

£1,017

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 2/6

07:00-10:35

3 stops31h 35m

Asuncion Silvio Pettirossi

Tue 16/6

11:10-21:30

3 stops30h 20m

£1,088

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 20/10

20:05-10:35

2 stops42h 30m

Asuncion Silvio Pettirossi

Wed 11/11

13:10-21:25

3 stops29h 15m

£1,372

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Thu 4/6

20:05-10:30

2 stops42h 25m

Asuncion Silvio Pettirossi

Wed 10/6

02:50-21:30

3 stops38h 40m

£1,388

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 11/5

08:55-10:35

3 stops29h 40m

Asuncion Silvio Pettirossi

Sun 17/5

13:15-13:00

2 stops19h 45m

£1,403

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 2/6

16:45-05:24

3 stops40h 39m

Asuncion Silvio Pettirossi

Tue 16/6

12:05-15:10

2 stops47h 05m

£1,459
Fastest return journey

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Wed 6/5

21:20-17:40

2 stops24h 20m

Asuncion Silvio Pettirossi

Sat 9/5

11:25-16:05

2 stops24h 40m

£1,526

Flights are sorted by cheapest return flights first.

Deals found on 21/4

Showing 1-10 of 18 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, March is the cheapest month in which you can book a flight from London Heathrow Airport to Asuncion (average of £780). Flying from London Heathrow Airport to Asuncion in December is currently the most expensive (average of £1,556). 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 25 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
1,911 reviews
Check prices

Comfort

7.3

Crew

8.0

Food

6.7

Boarding

7.5

Overall

7.4

Entertainment

7.0

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
1,911 reviews
LATAM Airlines
7.4
Good
1,911 reviews
Check prices

Comfort

7.3

Crew

8.0

Food

6.7

Boarding

7.5

Overall

7.4

Entertainment

7.0

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 and SWISS fly from London Heathrow Airport to Asuncion in about 21h 40m. The time it takes to get you to your destination can typically vary by up to 9h 55m. 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 (£805), 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 £780). Flying from London Heathrow Airport to Asuncion in December is currently the most expensive (average of £1,556). 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 25 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£805Average£1,110FlexibilityNo 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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