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Cheap flights from Lisbon to St. Louis from $446

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to St. Louis departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Lisbon to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
8:25 am - 8:44 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
18h 19m2 stops Madrid Barajas Chicago O'Hare Intl
Iberia Logo
6:30 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
20h 35m1 stop Philadelphia
$924Iberia
Thu, Sep 17 - Thu, Sep 24
Iberia Logo
8:25 am - 7:27 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
17h 02m2 stops Madrid Barajas Chicago O'Hare Intl
Iberia Logo
11:22 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 43m1 stop Philadelphia
$926Iberia
Thu, Sep 3 - Mon, Sep 7
Multiple Airlines Logo
8:25 am - 7:27 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
17h 02m2 stops Madrid Barajas Chicago O'Hare Intl
Multiple Airlines Logo
11:22 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 43m1 stop Philadelphia
$928Multiple Airlines
Thu, Sep 3 - Mon, Sep 7
Multiple Airlines Logo
8:25 am - 12:14 amLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
21h 49m2 stops Madrid Barajas Chicago O'Hare Intl
Multiple Airlines Logo
5:18 pm - 3:30 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
16h 12m2 stops Chicago O'Hare Intl London Heathrow
$932Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Iberia Logo
12:30 pm - 11:42 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
17h 12m2 stops Madrid Barajas Dallas/Fort Worth
Iberia Logo
6:30 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
20h 35m1 stop Philadelphia
$935Iberia
Thu, Sep 3 - Thu, Sep 10
Iberia Logo
11:05 am - 9:43 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
16h 38m1 stop Philadelphia
Iberia Logo
6:30 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
20h 35m1 stop Philadelphia
$936Iberia
Thu, Sep 17 - Thu, Sep 24
Iberia Logo
11:05 am - 11:34 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
18h 29m1 stop Philadelphia
Iberia Logo
11:09 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 56m1 stop Philadelphia
$937Iberia
Thu, Sep 3 - Thu, Sep 10
Iberia Logo
11:05 am - 11:34 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
18h 29m1 stop Philadelphia
Iberia Logo
11:22 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 43m1 stop Philadelphia
$938Iberia
Mon, Aug 31 - Mon, Sep 7
Iberia Logo
11:05 am - 11:34 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
18h 29m1 stop Philadelphia
Iberia Logo
11:22 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 43m1 stop Philadelphia
$939Iberia
Thu, Sep 3 - Mon, Sep 7
Iberia Logo
11:05 am - 11:34 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
18h 29m1 stop Philadelphia
Iberia Logo
11:22 am - 9:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 43m1 stop Philadelphia
$940Iberia
Thu, Sep 3 - Mon, Sep 7

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Lufthansa flights from Lisbon to St. Louis

Our best Lufthansa deals on Lisbon to St. Louis flight tickets
Lufthansa
Nov 24
LIS5:00 amLisbon Humberto Delgado
22h 40m
2 stops
STL9:40 pmLambert-St Louis
Nov 28
STL11:28 amLambert-St Louis
14h 42m
1 stop
LIS8:10 amLisbon Humberto Delgado
$1,059
Lufthansa
Nov 24
LIS12:20 pmLisbon Humberto Delgado
31h 25m
1 stop
STL1:45 pmLambert-St Louis
Nov 28
STL11:28 amLambert-St Louis
14h 42m
1 stop
LIS8:10 amLisbon Humberto Delgado
$1,090
Lufthansa
Nov 24
LIS12:20 pmLisbon Humberto Delgado
31h 25m
1 stop
STL1:45 pmLambert-St Louis
Nov 28
STL11:28 amLambert-St Louis
14h 42m
1 stop
LIS8:10 amLisbon Humberto Delgado
$1,093

United Airlines flights from Lisbon to St. Louis

Our best United Airlines deals on Lisbon to St. Louis flight tickets
United Airlines
Aug 31
LIS5:05 amLisbon Humberto Delgado
14h 20m
1 stop
STL1:25 pmLambert-St Louis
Sep 7
STL10:53 amLambert-St Louis
17h 37m
2 stops
LIS10:30 amLisbon Humberto Delgado
$964
United Airlines
Nov 5
LIS12:25 pmLisbon Humberto Delgado
31h 20m
1 stop
STL1:45 pmLambert-St Louis
Nov 9
STL9:40 amLambert-St Louis
16h 30m
2 stops
LIS8:10 amLisbon Humberto Delgado
$984
United Airlines
Nov 5
LIS12:25 pmLisbon Humberto Delgado
31h 20m
1 stop
STL1:45 pmLambert-St Louis
Nov 9
STL11:38 amLambert-St Louis
14h 32m
1 stop
LIS8:10 amLisbon Humberto Delgado
$985

momondo Fare Finder

 
Customize your flight search to find flights from Lisbon to St. Louis 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, momondo users made 832,500 searches. Data last updated August 5, 2026.
Use the filters below to find and compare flights from Lisbon to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/17

8:25 am-8:44 pm

2 stops18h 19m

Lambert-St Louis

Thu 9/24

6:30 am-9:05 am

1 stop20h 35m

$924
Quickest round-trip

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/3

8:25 am-7:27 pm

2 stops17h 02m

Lambert-St Louis

Mon 9/7

11:22 am-9:05 am

1 stop15h 43m

$926

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/3

8:25 am-7:27 pm

2 stops17h 02m

Lambert-St Louis

Mon 9/7

11:22 am-9:05 am

1 stop15h 43m

$928

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/3

8:25 am-12:14 am

2 stops21h 49m

Lambert-St Louis

Thu 9/10

5:18 pm-3:30 pm

2 stops16h 12m

$932

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/3

12:30 pm-11:42 pm

2 stops17h 12m

Lambert-St Louis

Thu 9/10

6:30 am-9:05 am

1 stop20h 35m

$935

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/17

11:05 am-9:43 pm

1 stop16h 38m

Lambert-St Louis

Thu 9/24

6:30 am-9:05 am

1 stop20h 35m

$936

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/3

11:05 am-11:34 pm

1 stop18h 29m

Lambert-St Louis

Thu 9/10

11:09 am-9:05 am

1 stop15h 56m

$937

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Mon 8/31

11:05 am-11:34 pm

1 stop18h 29m

Lambert-St Louis

Mon 9/7

11:22 am-9:05 am

1 stop15h 43m

$938

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/3

11:05 am-11:34 pm

1 stop18h 29m

Lambert-St Louis

Mon 9/7

11:22 am-9:05 am

1 stop15h 43m

$939

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 9/3

11:05 am-11:34 pm

1 stop18h 29m

Lambert-St Louis

Mon 9/7

11:22 am-9:05 am

1 stop15h 43m

$940

Flights are sorted by cheapest round-trip flights first.

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

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

You could potentially save up to 20% on your flight if you consider stops on a Lisbon to St. Louis flight.

When to book flights from Lisbon to St. Louis

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

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

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

Fastest flight time

17h 02m

Direct flights

None
The fastest flight from Lisbon to St. Louis takes 17h 02m
There are no direct flights from Lisbon to St. Louis. There are no popular flight routes from Lisbon to St. Louis.
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Frequently asked questions about flying from Lisbon to St. Louis

  • How far is Lisbon Humberto Delgado to Lambert-St Louis by plane?

    A flight from Lisbon Humberto Delgado to Lambert-St Louis will travel around 4210.2 mi. Flights usually cover this in 17h 02m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Lisbon Humberto Delgado Airport to Lambert-St Louis Airport are refreshed on a daily basis.

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

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
Alton
O'Fallon
Clayton
Farmington
Fenton
Wentzville
Festus
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Lisbon to St. Louis for you.

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

Yes. momondo allows you to filter the results for Lisbon to St. Louis flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Lisbon to St. Louis.

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