LON - ASU

£400 Find Cheap Flights from London to Asuncion

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Asuncion departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Asuncion

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Asuncion, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Asuncion, as well as popular online travel agencies
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Flight Deals

Cheap Flights from London to Asuncion (LON-ASU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Asuncion that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Asuncion

Thu, 30 Oct - Thu, 6 Nov
Avianca Logo
21:40 - 05:15LHR-ASU
34h 35m1 stop
Avianca Logo
08:20 - 14:35ASU-LHR
27h 15m1 stop
£666Avianca
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Avianca Logo
22:05 - 04:40LHR-ASU
34h 35m1 stop
Avianca Logo
08:10 - 15:35ASU-LHR
27h 25m1 stop
£750Avianca
Find Deal
Thu, 30 Oct - Wed, 5 Nov
Multiple Airlines Logo
21:40 - 05:15LHR-ASU
34h 35m1 stop
Multiple Airlines Logo
03:10 - 14:05ASU-LHR
31h 55m1 stop
£759Multiple Airlines
Find Deal
Thu, 30 Oct - Wed, 5 Nov
Multiple Airlines Logo
21:40 - 05:15LHR-ASU
34h 35m1 stop
Multiple Airlines Logo
03:10 - 14:05ASU-LHR
31h 55m1 stop
£772Multiple Airlines
Find Deal
Sat, 8 Nov - Sun, 23 Nov
Air Europa Logo
10:00 - 07:30LGW-ASU
24h 30m1 stop
Air Europa Logo
14:15 - 09:00ASU-LGW
15h 45m1 stop
£801Air Europa
Find Deal
Mon, 2 Mar - Mon, 16 Mar
LATAM Airlines Logo
17:25 - 12:25LHR-ASU
22h 00m2 stops
LATAM Airlines Logo
18:30 - 14:05ASU-LHR
16h 35m1 stop
£820LATAM Airlines
Find Deal
Mon, 2 Mar - Mon, 16 Mar
LATAM Airlines Logo
20:15 - 12:25LHR-ASU
19h 10m1 stop
LATAM Airlines Logo
18:30 - 14:05ASU-LHR
16h 35m1 stop
£827LATAM Airlines
Find Deal
Fri, 7 Nov - Sun, 16 Nov
Air Europa Logo
10:00 - 07:30LGW-ASU
24h 30m1 stop
Air Europa Logo
14:15 - 09:00ASU-LGW
15h 45m1 stop
£836Air Europa
Find Deal
Thu, 9 Oct - Mon, 27 Oct
KLM Logo
08:40 - 05:25LCY-ASU
24h 45m2 stops
KLM Logo
03:35 - 16:35ASU-LCY
34h 00m2 stops
£910KLM
Find Deal
Fri, 13 Mar - Fri, 20 Mar
KLM Logo
06:30 - 11:30LHR-ASU
32h 00m2 stops
KLM Logo
12:20 - 12:05ASU-LHR
44h 45m2 stops
£920KLM
Find Deal

Everything you should know

Top airlines
Avianca
Cheapest • from £666 (return)
KLM
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 27% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£666
Typical prices: £887-1108
Avianca
Thu 30/10Thu 6/11
LHR - ASU • 1 stop
Cheapest one-way flight
£400
Avianca
Wed 15/10
LHR - ASU • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Booking Insights

KAYAK's insights & trends for London to Asuncion flights

Get data-powered insights and trends into flights from London to Asuncion to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London to Asuncion?

What is the cheapest month to fly from London to Asuncion?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Asuncion, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Asuncion is March, where tickets cost £683 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,189 and £1,188 respectively.

Good to know - Cheap tickets from London to Asuncion

Low seasonJune
Cheapest flight£400
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from London Heathrow Airport to Asuncion

When to book flights from London to Asuncion

Are your dates flexible? Find out the best times to travel from London to Asuncion based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Asuncion

  • What is the cheapest flight from London to Asuncion?

    In the last 3 days, the lowest price for a flight from London to Asuncion was £546 for a one-way ticket and £908 for a return.

  • Which airports will I be using when flying from London to Asuncion?

    London is served by 3 major airports and there is only 1 main airport in Asuncion. You will leave London from one of these airports: London City, London Gatwick, or London Heathrow. You will be arriving at Asuncion Silvio Pettirossi.

  • Which aircraft models fly most regularly from London to Asuncion?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Asuncion?

    Star Alliance, and SkyTeam are the airline alliances operating flights between London and Asuncion, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from London to Asuncion, KLM or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from London to Asuncion are KLM and LATAM Airlines. With an average price for the route of £987 and an overall rating of 7.8, KLM is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of £1,051 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from London to Asuncion?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Asuncion.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Asuncion?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Asuncion from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Asuncion?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Asuncion with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Asuncion?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Asuncion from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from London to Asuncion

 
See real verified KAYAK customer reviews for airlines flying from London to Asuncion. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Asuncion? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1386 reviews
7.7Comfort
7.3Food
8.4Crew
7.8Boarding
7.2Entertainment
Airline reviews

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

10.0 ExcellentCameron, Sept 2025YYJ - YYC
Read more KLM reviews

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

Bought a ticket that included a bag and they still charged me to check it in, latam is the worst airline.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

The boarding and new bag drop-off process was confusing and causing massive delays.

It was a very good flight, no entertainment is the reason for not checking that box.

Our flight was cancelled and it took them 5 hours to reschedule and the next morning they said we still didn’t have a new ticket.

I travel often with LATAM, it never disappoints me. The service is great, nice crew, latest and some classic movies. I got 3 small meals, cannot complaint. I’ll definitely travel again with them.

Great staff, just very far from the main terminal, had to run to connect my flight. I had 90 minutes to spare. But my flight from Chicago was delayed also.

My luggage is lost and nowhere to be found, no response from airline

Boarding was a shitshow. Had to bus to the gate. No separate bus and boarding process for Business Class.

The plane was very old, no power outlets. We also had to wait a long time to board. They kept moving us to different lines before we actually could step foot on the plane. We ended up being delayed an hour but we were never told or informed for any reason. After the meal I asked for a coffee which the flight attendant forgot and I had to ask again. Overall not the worst but not the best experience.

Need to pay for headsets, water, or any extra except air to breath.

Sitting space was very tight and I am not big or fat (I am 5'10" 178 Lb), so eating was very challenging. The rest was good.

Sitting space was very tight, so eating was difficult. But everything else was good.

12 hours flight. Only one meal, not enough food. At the galley only water during the flight. Lavatories not clean. Headsets at extra cost.

Need to pay for a cup of water. No food. Need to pay for headsets.

Everything should improve! Service like a low cost but prices like a premium airline. Crew in general with bad manners arguing for everything. You pay for priority access but then they use buses, so your loose your advantage to put your carry on first. That was the purpose for paying for priority. Bording is a nightmare, people accessing the plane for bothering doors, front and rear, no matter which line do you have.

Everything you need to know for your flight from London to Asuncion

Information on your arrival and departure airports

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