Find flights
When to book
Airlines
FAQs

Cheap flights from Asuncion to London Heathrow Airport from £435

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ASU — LHR
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Asuncion to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Asuncion (ASU) to Heathrow (LHR). 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 June 2025.

Round-trip from

£764

One-way from

£435

Popular in

July

Cheapest in

November

Average price

£1,141
LATAM Airlines
  • LATAM Airlines
  • 3/11-13/11
  • 2 total stops
  • 32h 55m total
  • Asuncion to London
Search Deals
4/7
  • 4/7
  • 2 total stops
  • 26h 05m total
  • Asuncion to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£99 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Asuncion to Heathrow

Cheapest flights from Asuncion to Heathrow
Explore the most affordable flight options available from Asuncion to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Mon 3/1119:00ASU - LHR
1 stop16h 05mLATAM Airlines
Thu 13/1120:15LHR - ASU
1 stop16h 50mLATAM Airlines
Deal found 12/6£764
Thu 31/712:30ASU - LHR
2 stops23h 45mGOL
Tue 19/819:45LHR - ASU
2 stops43h 55mGOL
Deal found 12/6£772
Thu 17/718:55ASU - LHR
1 stop16h 10mMultiple Airlines
Thu 18/919:50LHR - ASU
2 stops32h 05mMultiple Airlines
Deal found 10/6£849
Wed 11/612:30ASU - LHR
2 stops25h 05mKLM
Sun 15/606:30LHR - ASU
2 stops33h 10mKLM
Deal found 11/6£929
Fri 5/901:44ASU - LHR
2 stops28h 56mUnited Airlines
Sat 13/914:10LHR - ASU
2 stops43h 17mUnited Airlines
Deal found 11/6£980
Fri 29/808:10ASU - LHR
1 stop27h 25mAvianca
Fri 5/922:05LHR - ASU
1 stop34h 35mAvianca
Deal found 12/6£1,185
Sat 5/706:28ASU - LHR
2 stops30h 07mAir France
Mon 14/715:20LHR - ASU
2 stops24h 20mAir France
Deal found 11/6£1,359

Cheapflights Fare Finder

Customise your flight search to find flights from Asuncion to Heathrow 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 June 2025.
Use the filters below to find and compare flights from Asuncion to London Heathrow Airport that are best for you.

Fly from

Asuncion

Fly to

Heathrow

Route

Depart

Return

Price

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Mon 3/11

19:00-14:05

1 stop16h 05m

London Heathrow

Thu 13/11

20:15-10:05

1 stop16h 50m

£764

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Thu 31/7

12:30-16:15

2 stops23h 45m

London Heathrow

Tue 19/8

19:45-11:40

2 stops43h 55m

£772

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Thu 17/7

18:55-15:05

1 stop16h 10m

London Heathrow

Thu 18/9

19:50-23:55

2 stops32h 05m

£849

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Fri 5/9

01:44-10:40

2 stops28h 56m

London Heathrow

Sat 13/9

14:10-05:27

2 stops43h 17m

£980

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Tue 1/7

12:30-19:25

2 stops26h 55m

London Heathrow

Wed 9/7

08:40-05:28

2 stops24h 48m

£1,086

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Fri 29/8

08:10-15:35

1 stop27h 25m

London Heathrow

Fri 5/9

22:05-04:40

1 stop34h 35m

£1,185

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Sat 5/7

06:28-16:35

2 stops30h 07m

London Heathrow

Mon 14/7

15:20-11:40

2 stops24h 20m

£1,359

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Mon 14/7

06:28-15:55

2 stops53h 27m

London Heathrow

Fri 18/7

18:30-05:28

3 stops38h 58m

£2,370

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Fri 4/7

08:10-14:15

2 stops26h 05m

£435

AsuncionLondon

ASU - LHR

ASULHR

Asuncion Silvio Pettirossi

Fri 4/7

11:05-15:05

2 stops48h 00m

£520

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 14 results
1
2

Best time to book a flight from Asuncion to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Asuncion 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 Asuncion to London Heathrow Airport

What is the cheapest month to book a flight from Asuncion to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Asuncion to London Heathrow Airport (average of £112). Flying from Asuncion to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

What is the cheapest time of day to fly from ASU to LHR?

Find hourly flight availability from Asuncion to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

When flying from Asuncion to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown with KLM, LATAM Airlines and Air France from Asuncion to London to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
LATAM Airlines
7.5
Good
1,785 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Air France
7.5
Good
1,463 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
United Airlines
7.4
Good
8,790 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Turkish Airlines
7.3
Good
3,849 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

Related info for your journey

Find useful and relevant information for your journey from Asuncion to Heathrow. 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 from for flights from Asuncion to London Heathrow?

    Located just 7.8 mi from the city center, Asuncion Silvio Pettirossi is the airport most travelers will use when flying to London Heathrow from Asuncion. Booking flights from Silvio Pettirossi (ASU) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 1 airline.

  • What are the cheapest airlines flying from Asuncion to London Heathrow Airport round-trip?

    LATAM Airlines, at £764, was found to be the cheapest airline from Asuncion to London Heathrow Airport.Alternate airlines flying return to your destination include GOL and United Airlines. These flights start at 11% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Asuncion to London Heathrow Airport one-way?

    For one-way options, check prices for LATAM Airlines. According to our data, you can fly for as low as £520. Users have also found prices from £526 and £784 on Avianca and United Airlines, respectively.

  • Can I find deals for flights from Asuncion to Heathrow that include hotel bookings?

    Yes. In addition to deals on Asuncion to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Asuncion to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Asuncion to Heathrow.

  • Can I find deals for business class flights from Asuncion to Heathrow?

    Yes. Cheapflights offers flight deals from Asuncion to Heathrow 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 Asuncion to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Asuncion to London Heathrow Airport (average of £112). Flying from Asuncion to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Asuncion?

Book flights to Asuncion if you plan to visit one of these locations
Deal
Hounslow
Croydon
Milton Keynes
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Swindon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Asuncion to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Asuncion to Gatwick flights
Asuncion to Stansted flights

Top airline flying from Asuncion to Heathrow

Discover the top airline that operate flights from Asuncion to Heathrow. 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 June 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£712Average£801FlexibilityNo 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 Asuncion to Heathrow?

Cheapflights makes it easy to find Asuncion to Heathrow 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 Asuncion to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Asuncion to Heathrow.

Can Cheapflights find flights from Asuncion to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Asuncion? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Asuncion to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Asuncion today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights