How many flights depart from London Heathrow Airport to Buenos Aires on average per week?

As of October 2026, there are 9 flights per week flying from London Heathrow Airport to Buenos Aires. The most common day of the week flights depart is Wed, with 33% of flights taking off on this day.

How many flights depart from London Heathrow Airport to Buenos Aires on average per day?

1 flights are operational daily from London Heathrow Airport to Buenos Aires as of October 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.

What is the cheapest airline that flies from London Heathrow to Buenos Aires?

United Airlines and Avianca are the most popular carriers operating from London Heathrow to Buenos Aires

How old do you have to be to fly from London Heathrow Airport to Buenos Aires?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Buenos Aires.

What documentation or ID do you need to fly to Buenos Aires?

The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$729 Cheap Flights from London Heathrow Airport to Buenos Aires in 2026/27

Find the cheapest flights from London Heathrow Airport to Buenos Aires

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6:35 am - 7:20 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

27h 45m2 stops Munich Franz Josef Strauss Houston George Bush Intcntl

11:55 pm - 7:40 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 45m1 stop Houston George Bush Intcntl

$1,277United Airlines

Mon, Nov 23 - Tue, Dec 8

1:00 pm - 3:05 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

53h 05m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl

4:50 pm - 7:10 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

59h 20m3 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,278Air Canada

Wed, Feb 17 - Fri, Mar 12

6:35 am - 9:20 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

29h 45m2 stops Munich Franz Josef Strauss Houston George Bush Intcntl

10:05 pm - 6:20 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

29h 15m2 stops Houston George Bush Intcntl Newark

$1,280United Airlines

Mon, Mar 1 - Mon, Mar 8

7:25 pm - 3:05 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

46h 40m3 stops Vienna Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl

4:50 pm - 11:20 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

39h 30m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl

$1,281Air Canada

Wed, Feb 17 - Fri, Mar 12

7:25 pm - 3:05 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

46h 40m3 stops Vienna Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl

4:50 pm - 7:10 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

59h 20m3 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,284Air Canada

Wed, Feb 17 - Fri, Mar 12

9:35 pm - 5:40 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

35h 05m1 stop Bogotá El Dorado

7:05 am - 2:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

28h 30m1 stop Bogotá El Dorado

$1,285Avianca

Tue, Feb 9 - Mon, Mar 15

1:00 pm - 3:05 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

29h 05m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl

4:50 pm - 7:10 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

35h 20m3 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$1,285Air Canada

Fri, Feb 26 - Mon, Mar 15

6:00 am - 12:40 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

33h 40m2 stops Lisbon Humberto Delgado Sao Paulo Guarulhos Intl

10:20 am - 10:40 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

33h 20m2 stops Rio de Janeiro–Galeão Intl Lisbon Humberto Delgado

$1,286TAP AIR PORTUGAL

Mon, Feb 15 - Mon, Mar 15

6:45 pm - 6:35 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

26h 50m2 stops Madrid Barajas Lima J Chavez Intl

7:20 am - 6:50 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

32h 30m2 stops Lima J Chavez Intl Madrid Barajas

$1,286LATAM Airlines

Wed, Feb 17 - Wed, Mar 10

2:30 pm - 8:05 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

20h 35m1 stop Miami

11:20 pm - 6:45 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 25m1 stop Miami

$1,289American Airlines

Thu, Dec 3 - Tue, Dec 22

Cheap last minute flights

Enter your travel dates to find the best prices.

1:40 pm - 6:00 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

31h 20m3 stops Lisbon Humberto Delgado Rio de Janeiro–Galeão Intl Asuncion Silvio Pettirossi

4:40 pm - 5:30 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

21h 50m2 stops Sao Paulo Guarulhos Intl Lisbon Humberto Delgado

$1,535Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

9:35 pm - 4:20 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

33h 45m2 stops Bogotá El Dorado Lima J Chavez Intl

9:00 am - 2:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

26h 35m2 stops Lima J Chavez Intl Bogotá El Dorado

$1,544Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

8:15 pm - 5:08 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

23h 53m2 stops Sao Paulo Guarulhos Intl Rio de Janeiro–Galeão Intl

5:32 am - 3:30 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

30h 58m2 stops Rio de Janeiro–Galeão Intl Lisbon Humberto Delgado

$1,664Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

9:35 pm - 11:40 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

29h 05m2 stops Bogotá El Dorado Santiago Arturo Merino Benitez

4:40 pm - 2:05 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

18h 25m1 stop Sao Paulo Guarulhos Intl

$1,673Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

1:40 pm - 6:00 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

31h 20m3 stops Lisbon Humberto Delgado Rio de Janeiro–Galeão Intl Asuncion Silvio Pettirossi

11:50 am - 2:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

23h 45m2 stops Santiago Arturo Merino Benitez Bogotá El Dorado

$1,698Multiple Airlines

Wed, Oct 28 - Fri, Oct 30

8:15 pm - 8:00 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

26h 45m1 stop Sao Paulo Guarulhos Intl

9:45 pm - 2:05 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

37h 20m1 stop Sao Paulo Guarulhos Intl

$1,729LATAM Airlines

Wed, Oct 28 - Wed, Nov 4

9:35 pm - 9:20 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

26h 45m2 stops Bogotá El Dorado Santiago Arturo Merino Benitez

5:45 am - 2:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

29h 50m2 stops Santiago Arturo Merino Benitez Bogotá El Dorado

$1,750Multiple Airlines

Wed, Oct 28 - Fri, Oct 30

8:15 pm - 1:55 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

20h 40m2 stops Sao Paulo Guarulhos Intl Rio de Janeiro–Galeão Intl

5:00 pm - 2:05 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

18h 05m1 stop Sao Paulo Guarulhos Intl

$1,766LATAM Airlines

Wed, Oct 28 - Wed, Nov 4

9:35 pm - 3:40 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

21h 05m1 stop Bogotá El Dorado

2:05 am - 2:05 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

33h 00m1 stop Sao Paulo Guarulhos Intl

$1,997Multiple Airlines

Wed, Oct 28 - Tue, Nov 3

8:15 pm - 5:08 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

23h 53m2 stops Sao Paulo Guarulhos Intl Rio de Janeiro–Galeão Intl

11:20 am - 2:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

24h 15m2 stops Santiago Arturo Merino Benitez Bogotá El Dorado

$2,006Multiple Airlines

Wed, Oct 28 - Fri, Oct 30

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Iberia flights from London Heathrow Airport to Buenos Aires

Our best Iberia deals on London Heathrow Airport to Buenos Aires flight tickets

Iberia

Jan 30

LHR7:05 pmLondon Heathrow

25h 20m

1 stop

EZE5:25 pmBuenos Aires Ministro Pistarini

Feb 11

EZE7:10 pmBuenos Aires Ministro Pistarini

17h 55m

1 stop

LHR4:05 pmLondon Heathrow

$1,332

Iberia

Nov 1

LHR6:05 amLondon Heathrow

17h 50m

1 stop

EZE8:55 pmBuenos Aires Ministro Pistarini

Nov 22

EZE1:50 pmBuenos Aires Ministro Pistarini

16h 25m

1 stop

LHR9:15 amLondon Heathrow

$1,360

Iberia

Nov 2

LHR9:55 amLondon Heathrow

27h 15m

1 stop

EZE10:10 amBuenos Aires Ministro Pistarini

Nov 9

EZE11:05 amBuenos Aires Ministro Pistarini

20h 30m

2 stops

LHR10:35 amLondon Heathrow

$1,558

United Airlines flights from London Heathrow Airport to Buenos Aires

Our best United Airlines deals on London Heathrow Airport to Buenos Aires flight tickets

United Airlines

Nov 23

LHR6:35 amLondon Heathrow

27h 45m

2 stops

EZE7:20 amBuenos Aires Ministro Pistarini

Dec 8

EZE11:55 pmBuenos Aires Ministro Pistarini

28h 45m

1 stop

LHR7:40 amLondon Heathrow

$1,277

United Airlines

Mar 1

LHR6:35 amLondon Heathrow

29h 45m

2 stops

EZE9:20 amBuenos Aires Ministro Pistarini

Mar 8

EZE10:05 pmBuenos Aires Ministro Pistarini

29h 15m

2 stops

LHR6:20 amLondon Heathrow

$1,280

United Airlines

Nov 20

LHR12:05 pmLondon Heathrow

22h 15m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

Nov 22

EZE11:55 pmBuenos Aires Ministro Pistarini

29h 30m

2 stops

LHR8:25 amLondon Heathrow

$1,290

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Buenos Aires that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 11/23

6:35 am-7:20 am

2 stops27h 45m

Buenos Aires Ministro Pistarini

Tue 12/8

11:55 pm-7:40 am

1 stop28h 45m

$1,277

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 2/17

1:00 pm-3:05 pm

3 stops53h 05m

Buenos Aires Ministro Pistarini

Fri 3/12

4:50 pm-7:10 am

3 stops59h 20m

$1,278

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 3/1

6:35 am-9:20 am

2 stops29h 45m

Buenos Aires Ministro Pistarini

Mon 3/8

10:05 pm-6:20 am

2 stops29h 15m

$1,280

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 2/17

7:25 pm-3:05 pm

3 stops46h 40m

Buenos Aires Ministro Pistarini

Fri 3/12

4:50 pm-11:20 am

2 stops39h 30m

$1,281

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 2/17

7:25 pm-3:05 pm

3 stops46h 40m

Buenos Aires Ministro Pistarini

Fri 3/12

4:50 pm-7:10 am

3 stops59h 20m

$1,284

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Tue 2/9

9:35 pm-5:40 am

1 stop35h 05m

Buenos Aires Jorge Newbery

Mon 3/15

7:05 am-2:35 pm

1 stop28h 30m

$1,285

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Fri 2/26

1:00 pm-3:05 pm

3 stops29h 05m

Buenos Aires Ministro Pistarini

Mon 3/15

4:50 pm-7:10 am

3 stops35h 20m

$1,285

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Mon 2/15

6:00 am-12:40 pm

2 stops33h 40m

Buenos Aires Jorge Newbery

Mon 3/15

10:20 am-10:40 pm

2 stops33h 20m

$1,286

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 2/17

6:45 pm-6:35 pm

2 stops26h 50m

Buenos Aires Ministro Pistarini

Wed 3/10

7:20 am-6:50 pm

2 stops32h 30m

$1,286

Quickest round-trip

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 12/3

2:30 pm-8:05 am

1 stop20h 35m

Buenos Aires Ministro Pistarini

Tue 12/22

11:20 pm-6:45 am

1 stop28h 25m

$1,289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between London Heathrow Airport and Buenos Aires?

Prices are currently typical for flights on this route.

Typical prices usually range from $1,260 to $1,611.
The lowest price recently found on this route was $1,277.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from London Heathrow Airport is in May. Flight prices, which tend to average around $1,124, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from London Heathrow Airport during June instead. Flights to Buenos Aires in June, while not as cheap as those in May, still average around $1,242.

How far in advance should I book a flight from London Heathrow Airport to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,399 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London Heathrow Airport for as low as $1,191 on momondo.

Can stopping save me money on London Heathrow Airport to Buenos Aires flights?

You could potentially save up to 7% on your flight if you consider stops on a London Heathrow Airport to Buenos Aires flight.

How have London Heathrow Airport to Buenos Aires flight prices changed over time?

As of October 2026, prices for London Heathrow Airport to Buenos Aires flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Buenos Aires

Best Price Found	$729
Fastest flight time	16h 25m
Direct flights	Mon, Tue, Fri and Sun
Airports in Buenos Aires	2 airports

The best one-way flight to Buenos Aires from London Heathrow Airport in the past 72 hours is $729. The best round-trip flight deal from London Heathrow Airport to Buenos Aires found on momondo in the last 72 hours is $1,277.

The fastest flight from London Heathrow Airport to Buenos Aires takes 16h 25m

Direct flights go from London Heathrow Airport to Buenos Aires on Monday, Tuesday, Friday and Sunday. There are no airlines offering direct flights.

There are 2 airports in Buenos Aires. From London Heathrow Airport there are direct flights to Buenos Aires Ministro Pistarini (EZE).

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Frequently asked questions about flying from London Heathrow Airport to Buenos Aires

How far is London Heathrow to Buenos Aires by plane?
The distance between London Heathrow and Buenos Aires is about 6898.3 mi. By plane, this route typically takes 16h 25m.
When did momondo last update prices for flights from London Heathrow Airport to Buenos Aires?
Prices for flights from London Heathrow Airport to Buenos Aires are updated daily.
How old do you have to be to fly from London Heathrow Airport to Buenos Aires?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Buenos Aires?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Buenos Aires is Boeing 777 (100.00% of total bookings).
What is the most popular airline from London Heathrow Airport to Buenos Aires?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Buenos Aires is British Airways (100% of total bookings).

Why use momondo?

Why should I use momondo to find a flight deal from London to Buenos Aires?

Finding the right flight to Buenos Aires from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

Can I find flights from London to Buenos Aires with flexible booking policies on momondo?

Yes. All flights to Buenos Aires from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Buenos Aires?

Once all potential London to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Buenos Aires right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Complete your trip

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Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Cheap flights from London Heathrow Airport to Buenos Aires from $729

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Iberia flights from London Heathrow Airport to Buenos Aires

Our best Iberia deals on London Heathrow Airport to Buenos Aires flight tickets

United Airlines flights from London Heathrow Airport to Buenos Aires

Our best United Airlines deals on London Heathrow Airport to Buenos Aires flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Buenos Aires that are best for you.

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from London Heathrow Airport to Buenos Aires

What is the typical price of a round-trip flight between London Heathrow Airport and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

How far in advance should I book a flight from London Heathrow Airport to Buenos Aires?

Can stopping save me money on London Heathrow Airport to Buenos Aires flights?

How have London Heathrow Airport to Buenos Aires flight prices changed over time?

What is the cheapest airline that flies from London Heathrow to Buenos Aires?

How many flights depart from London Heathrow Airport to Buenos Aires on average per day?

How many flights depart from London Heathrow Airport to Buenos Aires on average per week?

When to book flights from London Heathrow Airport to Buenos Aires

Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Buenos Aires

Frequently asked questions about flying from London Heathrow Airport to Buenos Aires

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires

Cabin classes currently available on flights to Buenos Aires

List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from London Heathrow Airport

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year