Which layover airport offers the lowest fares from St. Louis to Lisbon?

Flights via Toronto (YYZ) offer the lowest average round-trip price of $1,103.

Which layover airport has the shortest connection time from St. Louis to Lisbon?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 48m.

What is the cheapest airline that flies from Lambert-St Louis to Lisbon Humberto Delgado?

United Airlines and KLM are the most popular carriers operating from Lambert-St Louis to Lisbon Humberto Delgado

Which layover airport has the shortest travel time from St. Louis to Lisbon?

Flights connecting via London (LHR) have the shortest average one-way travel time: 12h 20m.

Which airport is the most popular layover for flights between St. Louis and Lisbon?

Philadelphia (PHL) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Lisbon?

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to Lisbon from St. Louis according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 6 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?

Prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?

There are 6 operators available for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport as of October 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?

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 Lambert-St Louis Airport to Lisbon Humberto Delgado Airport.

What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$361 Cheap Flights from St. Louis to Lisbon in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:17 pm - 10:20 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

15h 03m1 stop Washington, D.C. Dulles Intl

5:00 am - 1:45 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

14h 45m1 stop Frankfurt am Main

$757United Airlines

Wed, Dec 2 - Wed, Dec 9

6:30 am - 6:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

18h 25m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 1:45 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

14h 45m1 stop Frankfurt am Main

$760United Airlines

Wed, Dec 2 - Wed, Dec 9

1:17 pm - 10:20 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

15h 03m1 stop Washington, D.C. Dulles Intl

11:20 am - 2:18 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

32h 58m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$764Multiple Airlines

Wed, Dec 9 - Fri, Dec 25

4:05 pm - 9:20 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

11h 15m1 stop Toronto Pearson Intl

5:00 am - 2:45 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

14h 45m1 stop Frankfurt am Main

$766Multiple Airlines

Mon, Mar 8 - Fri, Mar 26

6:30 am - 6:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

18h 25m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

11:20 am - 12:22 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

31h 02m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$772Air Canada

Wed, Dec 2 - Wed, Dec 9

6:00 am - 6:55 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

18h 55m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:00 am - 3:26 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

39h 26m2 stops Frankfurt am Main Toronto Pearson Intl

$797Air Canada

Sun, Mar 7 - Thu, Mar 25

1:02 pm - 8:00 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

12h 58m1 stop New York LaGuardia

5:30 am - 11:55 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

24h 25m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$830Delta

Mon, Nov 9 - Tue, Dec 22

7:00 am - 8:00 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

19h 00m1 stop New York LaGuardia

5:30 am - 5:20 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 50m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County

$830Delta

Mon, Nov 9 - Fri, Dec 18

5:29 pm - 9:45 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

22h 16m2 stops Chicago O'Hare Intl London Heathrow

11:05 am - 11:29 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

18h 24m1 stop Philadelphia

$832British Airways

Sun, Nov 8 - Tue, Dec 22

5:29 pm - 9:45 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

22h 16m2 stops Chicago O'Hare Intl London Heathrow

11:05 am - 11:25 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

18h 20m1 stop Philadelphia

$882British Airways

Sun, Nov 8 - Sun, Dec 20

Cheap last minute flights

Enter your travel dates to find the best prices.

5:29 pm - 6:50 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

19h 21m2 stops Chicago O'Hare Intl London Heathrow

6:35 pm - 4:43 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

28h 08m2 stops London Heathrow Chicago O'Hare Intl

$846British Airways

Mon, Nov 2 - Mon, Nov 9

11:35 am - 6:50 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

25h 15m2 stops Chicago O'Hare Intl London Heathrow

6:35 pm - 4:43 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

28h 08m2 stops London Heathrow Chicago O'Hare Intl

$846British Airways

Mon, Nov 2 - Mon, Nov 9

11:35 am - 6:50 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

25h 15m2 stops Chicago O'Hare Intl London Heathrow

3:45 pm - 7:22 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

33h 37m2 stops London Heathrow Chicago O'Hare Intl

$846British Airways

Mon, Nov 2 - Mon, Nov 9

1:15 pm - 9:05 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

13h 50m1 stop Philadelphia

6:35 pm - 7:22 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

30h 47m2 stops London Heathrow Chicago O'Hare Intl

$854British Airways

Mon, Nov 2 - Mon, Nov 9

11:29 am - 8:10 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

14h 41m1 stop Newark

10:15 am - 9:52 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 37m1 stop Newark

$884United Airlines

Mon, Nov 2 - Mon, Nov 9

11:29 am - 8:10 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

14h 41m1 stop Newark

10:15 am - 9:52 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 37m1 stop Newark

$993United Airlines

Mon, Nov 2 - Mon, Nov 9

11:29 am - 8:10 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

14h 41m1 stop Newark

10:15 am - 9:52 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 37m1 stop Newark

$994United Airlines

Mon, Nov 2 - Mon, Nov 9

10:15 am - 1:55 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

45h 40m3 stops Baltimore/Washington Miami Warsaw Frederic Chopin

7:05 am - 3:23 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

38h 18m2 stops Warsaw Frederic Chopin Toronto Pearson Intl

$2,941Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

10:15 am - 1:55 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

45h 40m3 stops Baltimore/Washington Miami Warsaw Frederic Chopin

7:05 am - 3:23 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

38h 18m2 stops Warsaw Frederic Chopin Toronto Pearson Intl

$3,686Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

6:00 am - 9:45 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

45h 45m3 stops Chicago O'Hare Intl Hong Kong Intl London Heathrow

7:05 am - 9:59 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

44h 54m3 stops London Heathrow Hong Kong Intl Dallas/Fort Worth

$13,294Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

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Air Canada flights from St. Louis to Lisbon

Our best Air Canada deals on St. Louis to Lisbon flight tickets

Air Canada

Dec 2

STL6:30 amLambert-St Louis

18h 25m

2 stops

LIS6:55 amLisbon Humberto Delgado

Dec 9

LIS11:20 amLisbon Humberto Delgado

31h 02m

2 stops

STL12:22 pmLambert-St Louis

$772

Air Canada

Mar 7

STL6:00 amLambert-St Louis

18h 55m

2 stops

LIS6:55 amLisbon Humberto Delgado

Mar 25

LIS5:00 amLisbon Humberto Delgado

39h 26m

2 stops

STL3:26 pmLambert-St Louis

$797

Air Canada

Mar 13

STL4:05 pmLambert-St Louis

32h 50m

2 stops

LIS6:55 amLisbon Humberto Delgado

Mar 19

LIS10:55 amLisbon Humberto Delgado

39h 18m

2 stops

STL9:13 pmLambert-St Louis

$800

Delta flights from St. Louis to Lisbon

Our best Delta deals on St. Louis to Lisbon flight tickets

Delta

Nov 3

STL12:00 pmLambert-St Louis

17h 25m

2 stops

LIS11:25 amLisbon Humberto Delgado

Nov 11

LIS11:30 amLisbon Humberto Delgado

18h 26m

2 stops

STL11:56 pmLambert-St Louis

$827

Delta

Nov 9

STL7:00 amLambert-St Louis

19h 00m

1 stop

LIS8:00 amLisbon Humberto Delgado

Dec 18

LIS5:30 amLisbon Humberto Delgado

17h 50m

2 stops

STL5:20 pmLambert-St Louis

$830

Delta

Nov 6

STL10:35 amLambert-St Louis

16h 25m

2 stops

LIS9:00 amLisbon Humberto Delgado

Dec 18

LIS10:55 amLisbon Humberto Delgado

15h 33m

2 stops

STL8:28 pmLambert-St Louis

$889

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/2

1:17 pm-10:20 am

1 stop15h 03m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-1:45 pm

1 stop14h 45m

$757

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/2

6:30 am-6:55 am

2 stops18h 25m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-1:45 pm

1 stop14h 45m

$760

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/9

1:17 pm-10:20 am

1 stop15h 03m

Lisbon Humberto Delgado

Fri 12/25

11:20 am-2:18 pm

2 stops32h 58m

$764

Quickest round-trip

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Mon 3/8

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Fri 3/26

5:00 am-2:45 pm

1 stop14h 45m

$766

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Wed 12/2

6:30 am-6:55 am

2 stops18h 25m

Lisbon Humberto Delgado

Wed 12/9

11:20 am-12:22 pm

2 stops31h 02m

$772

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Sun 3/7

6:00 am-6:55 am

2 stops18h 55m

Lisbon Humberto Delgado

Thu 3/25

5:00 am-3:26 pm

2 stops39h 26m

$797

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Mon 11/9

1:02 pm-8:00 am

1 stop12h 58m

Lisbon Humberto Delgado

Tue 12/22

5:30 am-11:55 pm

2 stops24h 25m

$830

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Mon 11/9

7:00 am-8:00 am

1 stop19h 00m

Lisbon Humberto Delgado

Fri 12/18

5:30 am-5:20 pm

2 stops17h 50m

$830

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Sun 11/8

5:29 pm-9:45 pm

2 stops22h 16m

Lisbon Humberto Delgado

Tue 12/22

11:05 am-11:29 pm

1 stop18h 24m

$832

St. LouisLisbon

STL Lambert-St Louis - LIS Lisbon Humberto Delgado

STLLIS

Lambert-St Louis

Sun 11/8

5:29 pm-9:45 pm

2 stops22h 16m

Lisbon Humberto Delgado

Sun 12/20

11:05 am-11:25 pm

1 stop18h 20m

$882

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 St. Louis to Lisbon

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

Layovers

What is the typical price of a round-trip flight between St. Louis and Lisbon?

Prices are currently low for flights on this route.

Typical prices usually range from $768 to $1,016.
The lowest price recently found on this route was $747.

What is the cheapest month to fly to Lisbon?

In general, April is the cheapest month to fly from St. Louis to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $587. If you are unable to visit Lisbon during the month of April, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $760.

How far in advance should I book a flight from St. Louis to Lisbon?

You are more likely to see cheaper flights to Lisbon from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $1,141 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from St. Louis for as low as $594 on momondo.

Can stopping save me money on St. Louis to Lisbon flights?

You could potentially save up to 34% on your flight if you consider stops on a St. Louis to Lisbon flight.

When to book flights from St. Louis to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Lisbon (STL to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Lisbon

Best Price Found	$361
Fastest flight time	11h 15m
Direct flights	None

The best one-way flight to Lisbon from St. Louis in the past 72 hours is $361. The best round-trip flight deal from St. Louis to Lisbon found on momondo in the last 72 hours is $757.

The fastest flight from St. Louis to Lisbon takes 11h 15m

There are no direct flights from St. Louis to Lisbon. There are no popular flight routes from St. Louis to Lisbon.

Search flight deals

Frequently asked questions about flying from St. Louis to Lisbon

How far is Lambert-St Louis to Lisbon Humberto Delgado by plane?
The distance between Lambert-St Louis and Lisbon Humberto Delgado is about 4210.2 mi. A reasonable flight in good conditions will take 11h 15m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?
There are 6 operators available for flights from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport as of October 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Lisbon Humberto Delgado Airport?
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 Lambert-St Louis Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Lisbon?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Lisbon is United Airlines (37% of total bookings). The next most popular airlines are Air Canada (22%), American Airlines (13%), and British Airways (10%).

Best airlines flying from St. Louis to Lisbon

Compare and see reviews for airlines that fly from St. Louis to Lisbon with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $502	Free Cancellation	Rating 7.0 12,197 reviews	Search American Airlines flights
Delta	PriceFrom $558	Free Cancellation	Rating 7.8 8,683 reviews	Search Delta flights
British Airways	PriceFrom $574	Free Cancellation	Rating 6.7 8,275 reviews	Search British Airways flights
Lufthansa	PriceFrom $606	Free Cancellation	Rating 6.8 8,295 reviews	Search Lufthansa flights
Air Canada	PriceFrom $649	Free Cancellation	Rating 7.1 11,821 reviews	Search Air Canada flights
United Airlines	PriceFrom $707	Free Cancellation	Rating 7.3 10,444 reviews	Search United Airlines flights

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Batalha

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Caldas da Rainha

Costa da Caparica

Comporta

Oeiras

Tomar

Torres Vedras

Peniche

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Lisbon?

It is quick and easy to find St. Louis to Lisbon flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Lisbon that suits you.

Can I find flights from St. Louis to Lisbon with flexible booking policies on momondo?

momondo does allow users to show only those flights to Lisbon from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Lisbon?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lisbon from St. Louis.

I’m not ready to book a flight from St. Louis to Lisbon right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Lisbon from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from St. Louis to Lisbon from $361

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Lisbon departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from St. Louis to Lisbon

Our best Air Canada deals on St. Louis to Lisbon flight tickets

Delta flights from St. Louis to Lisbon

Our best Delta deals on St. Louis to Lisbon flight tickets

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How to get the cheapest flight ticket from St. Louis to Lisbon

What is the typical price of a round-trip flight between St. Louis and Lisbon?

What is the cheapest month to fly to Lisbon?

How far in advance should I book a flight from St. Louis to Lisbon?

Can stopping save me money on St. Louis to Lisbon flights?

What is the cheapest airline that flies from Lambert-St Louis to Lisbon Humberto Delgado?

What airlines fly to Lisbon?

Which airport is the most popular layover for flights between St. Louis and Lisbon?

Which layover airport offers the lowest fares from St. Louis to Lisbon?

Which layover airport has the shortest travel time from St. Louis to Lisbon?

Which layover airport has the shortest connection time from St. Louis to Lisbon?

When to book flights from St. Louis to Lisbon

Cheap St. Louis to Lisbon (STL to LIS) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Lisbon

Best airlines flying from St. Louis to Lisbon

Compare and see reviews for airlines that fly from St. Louis to Lisbon with momondo

Traveling to a place near Lisbon?

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An easier way to manage your Lisbon trip

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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

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

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