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Cheap flights from Portugal to St. Louis from $961

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portugal to St. Louis

Recent round-trip flight deals from Portugal to St. Louis

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 11:24 pmOPO  Porto-STL Lambert-St Louis
23h 24m2 stops Frankfurt am Main Chicago O'Hare Intl
United Airlines Logo
11:29 am - 9:30 amSTL  Lambert-St Louis-OPO Porto
16h 01m1 stop Newark
$961United Airlines
Thu, Nov 12 - Mon, Nov 16
United Airlines Logo
6:00 am - 11:24 pmOPO  Porto-STL Lambert-St Louis
23h 24m2 stops Frankfurt am Main Chicago O'Hare Intl
United Airlines Logo
1:08 pm - 9:30 amSTL  Lambert-St Louis-OPO Porto
14h 22m2 stops Chicago O'Hare Intl Newark
$963United Airlines
Thu, Nov 12 - Mon, Nov 16
United Airlines Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
United Airlines Logo
10:53 am - 10:05 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
17h 12m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
$965United Airlines
Fri, Nov 6 - Tue, Nov 10
Lufthansa Logo
6:00 am - 1:45 pmOPO  Porto-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
Lufthansa Logo
11:29 am - 9:30 amSTL  Lambert-St Louis-OPO Porto
16h 01m1 stop Newark
$968Lufthansa
Fri, Nov 6 - Tue, Nov 10
United Airlines Logo
6:00 am - 1:45 pmOPO  Porto-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
United Airlines Logo
10:53 am - 9:30 amSTL  Lambert-St Louis-OPO Porto
16h 37m2 stops Chicago O'Hare Intl Newark
$971United Airlines
Fri, Nov 6 - Tue, Nov 10
United Airlines Logo
5:00 am - 4:24 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
17h 24m2 stops Frankfurt am Main Chicago O'Hare Intl
United Airlines Logo
1:18 pm - 10:20 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 02m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
$971United Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
6:00 am - 6:09 pmOPO  Porto-STL Lambert-St Louis
18h 09m2 stops Frankfurt am Main Chicago O'Hare Intl
United Airlines Logo
5:00 pm - 9:30 amSTL  Lambert-St Louis-OPO Porto
10h 30m1 stop Newark
$972United Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
6:00 am - 11:24 pmOPO  Porto-STL Lambert-St Louis
23h 24m2 stops Frankfurt am Main Chicago O'Hare Intl
United Airlines Logo
11:29 am - 9:30 amSTL  Lambert-St Louis-OPO Porto
16h 01m1 stop Newark
$973United Airlines
Thu, Nov 12 - Mon, Nov 16
Lufthansa Logo
12:25 pm - 11:24 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
16h 59m2 stops Frankfurt am Main Chicago O'Hare Intl
Lufthansa Logo
1:08 pm - 1:25 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
18h 17m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
$974Lufthansa
Fri, Nov 6 - Tue, Nov 10
United Airlines Logo
5:00 am - 1:45 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
14h 45m1 stop Frankfurt am Main
United Airlines Logo
6:00 am - 8:10 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
20h 10m1 stop Newark
$975United Airlines
Fri, Nov 6 - Tue, Nov 10

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United Airlines flights from Portugal to St. Louis

Our best United Airlines deals on Portugal to St. Louis flight tickets
United Airlines
Nov 12
OPO6:00 amPorto
23h 24m
2 stops
STL11:24 pmLambert-St Louis
Nov 16
STL11:29 amLambert-St Louis
16h 01m
1 stop
OPO9:30 amPorto
$961
United Airlines
Nov 12
OPO6:00 amPorto
23h 24m
2 stops
STL11:24 pmLambert-St Louis
Nov 16
STL1:08 pmLambert-St Louis
14h 22m
2 stops
OPO9:30 amPorto
$963
United Airlines
Nov 6
LIS5:00 amLisbon Humberto Delgado
14h 45m
1 stop
STL1:45 pmLambert-St Louis
Nov 10
STL10:53 amLambert-St Louis
17h 12m
2 stops
LIS10:05 amLisbon Humberto Delgado
$965

Lufthansa flights from Portugal to St. Louis

Our best Lufthansa deals on Portugal to St. Louis flight tickets
Lufthansa
Nov 6
OPO6:00 amPorto
13h 45m
1 stop
STL1:45 pmLambert-St Louis
Nov 10
STL11:29 amLambert-St Louis
16h 01m
1 stop
OPO9:30 amPorto
$968
Lufthansa
Nov 6
LIS12:25 pmLisbon Humberto Delgado
16h 59m
2 stops
STL11:24 pmLambert-St Louis
Nov 10
STL1:08 pmLambert-St Louis
18h 17m
2 stops
LIS1:25 pmLisbon Humberto Delgado
$974

momondo Fare Finder

 
Use the filters below to find and compare flights from Portugal to St. Louis that are best for you.

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Route

Depart

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Price

Cheapest round-trip

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

6:00 am-11:24 pm

2 stops23h 24m

Lambert-St Louis

Mon 11/16

11:29 am-9:30 am

1 stop16h 01m

$961

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

6:00 am-11:24 pm

2 stops23h 24m

Lambert-St Louis

Mon 11/16

1:08 pm-9:30 am

2 stops14h 22m

$963

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Fri 11/6

5:00 am-1:45 pm

1 stop14h 45m

Lambert-St Louis

Tue 11/10

10:53 am-10:05 am

2 stops17h 12m

$965

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Fri 11/6

6:00 am-1:45 pm

1 stop13h 45m

Lambert-St Louis

Tue 11/10

11:29 am-9:30 am

1 stop16h 01m

$968

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Fri 11/6

6:00 am-1:45 pm

1 stop13h 45m

Lambert-St Louis

Tue 11/10

10:53 am-9:30 am

2 stops16h 37m

$971

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Wed 12/2

5:00 am-4:24 pm

2 stops17h 24m

Lambert-St Louis

Wed 12/9

1:18 pm-10:20 am

2 stops15h 02m

$971
Quickest round-trip

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/5

6:00 am-6:09 pm

2 stops18h 09m

Lambert-St Louis

Mon 11/9

5:00 pm-9:30 am

1 stop10h 30m

$972

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

6:00 am-11:24 pm

2 stops23h 24m

Lambert-St Louis

Mon 11/16

11:29 am-9:30 am

1 stop16h 01m

$973

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Fri 11/6

12:25 pm-11:24 pm

2 stops16h 59m

Lambert-St Louis

Tue 11/10

1:08 pm-1:25 pm

2 stops18h 17m

$974

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Fri 11/6

5:00 am-1:45 pm

1 stop14h 45m

Lambert-St Louis

Tue 11/10

6:00 am-8:10 am

1 stop20h 10m

$975

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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

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

You could potentially save up to 22% on your flight if you consider stops on a Portugal to St. Louis flight.

Cheap Portugal to St. Louis flight deals and tips

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

Best Price Found

$1,355

Fastest flight time

14h 45m

Direct flights

None
The best one-way flight to St. Louis from Portugal in the past 72 hours is $1,355. The best round-trip flight deal from Portugal to St. Louis found on momondo in the last 72 hours is $961.
The fastest flight from Portugal to St. Louis takes 14h 45m
There are no direct flights from Portugal to St. Louis. There are no popular flight routes from Portugal to St. Louis.
Search flight deals

Frequently asked questions about flying from Portugal to St. Louis

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

    Prices for flights from Portugal to Lambert-St Louis Airport are updated daily.

  • How old do you have to be to fly from Portugal 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 Portugal 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
Fairview Heights
Chesterfield
Maryland Heights
St. Peters
Alton
Collinsville
Florissant
Farmington
Hermann
Clayton
Festus
Fenton
Edwardsville
O'Fallon
Eureka
Wentzville
Litchfield
Grafton
Waterloo

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portugal to St. Louis. momondo saves you time and could save you money on your trip.

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

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

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

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 St. Louis from Portugal.

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

Yes momondo offers price alerts on flights to St. Louis from Portugal. 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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