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Cheap flights from London Heathrow Airport to Asuncion from £457

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ASU
31 Aug — 7 Sep1
1 adult

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 26 August 2025.

Round-trip from

£690

One-way from

£457

Popular in

July

Cheapest in

March

Average price

£1,143
9/9-1/12
  • 9/9-1/12
  • 4 total stops
  • 55h 50m total
  • London to Asuncion
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15/9
  • 15/9
  • 2 total stops
  • 35h 50m total
  • London to Asuncion
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£125 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£30 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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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 26 August 2025.

Tue 9/906:15LHR - ASU
2 stops33h 25mMultiple Airlines
Mon 1/1212:20ASU - LHR
2 stops22h 25mMultiple Airlines
Deal found 25/8£690
Tue 9/921:20LHR - ASU
1 stop16h 45mLATAM Airlines
Mon 1/1218:30ASU - LHR
1 stop16h 35mLATAM Airlines
Deal found 25/8£772
Tue 2/915:25LHR - ASU
2 stops24h 15mMultiple Airlines
Tue 9/1212:20ASU - LHR
2 stops22h 25mMultiple Airlines
Deal found 25/8£786
Sun 16/1121:40LHR - ASU
1 stop34h 35mAvianca
Thu 27/1108:20ASU - LHR
1 stop27h 15mAvianca
Deal found 23/8£789
Tue 2/917:20LHR - ASU
2 stops46h 45mLATAM Airlines
Tue 9/1213:20ASU - LHR
1 stop21h 45mLATAM Airlines
Deal found 25/8£830
Sun 16/1118:50LHR - ASU
2 stops37h 25mMultiple Airlines
Thu 27/1108:20ASU - LHR
2 stops30h 40mMultiple Airlines
Deal found 23/8£852
Thu 30/1009:00LHR - ASU
2 stops42h 01mMultiple Airlines
Wed 12/1112:20ASU - LHR
2 stops22h 30mMultiple Airlines
Deal found 24/8£859
Thu 30/1016:20LHR - ASU
2 stops40h 06mLufthansa
Tue 11/1101:46ASU - LHR
2 stops27h 09mLufthansa
Deal found 24/8£864
Thu 30/1020:15LHR - ASU
1 stop16h 55mLATAM Airlines
Wed 12/1118:30ASU - LHR
1 stop16h 35mLATAM Airlines
Deal found 24/8£875

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 26 August 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 9/9

06:15-11:40

2 stops33h 25m

Asuncion Silvio Pettirossi

Mon 1/12

12:20-13:45

2 stops22h 25m

£690

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 9/9

21:20-10:05

1 stop16h 45m

Asuncion Silvio Pettirossi

Mon 1/12

18:30-14:05

1 stop16h 35m

£772

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sun 16/11

21:40-05:15

1 stop34h 35m

Asuncion Silvio Pettirossi

Thu 27/11

08:20-14:35

1 stop27h 15m

£789

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Sun 16/11

18:50-05:15

2 stops37h 25m

Asuncion Silvio Pettirossi

Thu 27/11

08:20-18:00

2 stops30h 40m

£852

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Thu 30/10

09:00-00:01

2 stops42h 01m

Asuncion Silvio Pettirossi

Wed 12/11

12:20-13:50

2 stops22h 30m

£859

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 23/9

10:00-05:25

2 stops47h 25m

Asuncion Silvio Pettirossi

Mon 29/9

01:45-06:55

2 stops25h 10m

£864

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Thu 30/10

16:20-05:26

2 stops40h 06m

Asuncion Silvio Pettirossi

Tue 11/11

01:46-07:55

2 stops27h 09m

£864

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Tue 9/9

16:40-00:05

2 stops35h 25m

Asuncion Silvio Pettirossi

Sun 30/11

01:45-10:50

2 stops30h 05m

£864

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Thu 30/10

16:20-00:01

2 stops34h 41m

Asuncion Silvio Pettirossi

Thu 13/11

01:46-06:40

2 stops25h 54m

£864

LondonAsuncion

LHR - ASU

LHRASU

London Heathrow

Mon 15/9

20:50-04:40

2 stops35h 50m

£457

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 17 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 93% 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: 17h 49m.

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: 17h 49m.

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 3h 53m.

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 26 August 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
1,843 reviews
Check prices

Crew

8.0

Entertainment

7.0

Boarding

7.6

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,843 reviews
LATAM Airlines
7.5
Good
1,843 reviews
Check prices

Crew

8.0

Entertainment

7.0

Boarding

7.6

Comfort

7.4

Overall

7.5

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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 Avianca fly from London Heathrow Airport to Asuncion in about 16h 45m. The time it takes to get you to your destination can typically vary by up to 17h 50m. 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 (£814), 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.

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 26 August 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£814Average£1,057FlexibilityNo 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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