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Cheap flights from Portugal to St. Louis from $520

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.
Multiple Airlines Logo
9:20 am - 8:51 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
17h 31m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
Multiple Airlines Logo
2:25 pm - 11:25 amSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
16h 00m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
$873Multiple Airlines
Tue, Oct 20 - Tue, Oct 27
Delta Logo
5:00 am - 8:51 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
21h 51m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
Delta Logo
6:05 pm - 5:50 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
17h 45m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
$874Delta
Tue, Oct 6 - Mon, Oct 19
American Airlines Logo
12:25 pm - 9:16 amOPO  Porto-STL Lambert-St Louis
26h 51m2 stops Madrid Barajas Boston Logan Intl
American Airlines Logo
11:35 am - 11:45 amSTL  Lambert-St Louis-OPO Porto
18h 10m2 stops Chicago O'Hare Intl Madrid Barajas
$875American Airlines
Thu, Nov 12 - Mon, Nov 16
American Airlines Logo
8:20 am - 8:19 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
17h 59m2 stops Madrid Barajas Dallas/Fort Worth
American Airlines Logo
10:41 am - 12:05 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
19h 24m2 stops Charlotte Douglas London Heathrow
$879American Airlines
Thu, Jan 14 - Mon, Jan 18
American Airlines Logo
8:20 am - 11:33 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
21h 13m2 stops Madrid Barajas Dallas/Fort Worth
American Airlines Logo
1:58 pm - 12:05 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
16h 07m2 stops Charlotte Douglas London Heathrow
$881American Airlines
Thu, Jan 14 - Mon, Jan 18
American Airlines Logo
11:05 am - 8:24 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
15h 19m1 stop Philadelphia
American Airlines Logo
5:37 pm - 6:50 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
19h 13m2 stops Chicago O'Hare Intl London Heathrow
$883American Airlines
Thu, Jan 14 - Mon, Jan 18
American Airlines Logo
8:20 am - 5:47 pmOPO  Porto-STL Lambert-St Louis
39h 27m2 stops Madrid Barajas Boston Logan Intl
American Airlines Logo
5:29 pm - 4:00 pmSTL  Lambert-St Louis-OPO Porto
40h 31m2 stops Chicago O'Hare Intl Madrid Barajas
$883American Airlines
Thu, Nov 12 - Mon, Nov 16
American Airlines Logo
8:20 am - 5:47 pmOPO  Porto-STL Lambert-St Louis
39h 27m2 stops Madrid Barajas Boston Logan Intl
American Airlines Logo
5:29 pm - 4:00 pmSTL  Lambert-St Louis-OPO Porto
40h 31m2 stops Chicago O'Hare Intl Madrid Barajas
$884American Airlines
Thu, Nov 12 - Mon, Nov 16
American Airlines Logo
11:05 am - 8:24 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
15h 19m1 stop Philadelphia
American Airlines Logo
1:58 pm - 12:05 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
16h 07m2 stops Charlotte Douglas London Heathrow
$885American Airlines
Thu, Jan 14 - Mon, Jan 18
British Airways Logo
11:05 am - 8:24 pmLIS  Lisbon Humberto Delgado-STL Lambert-St Louis
15h 19m1 stop Philadelphia
British Airways Logo
5:37 pm - 2:55 pmSTL  Lambert-St Louis-LIS Lisbon Humberto Delgado
15h 18m2 stops Chicago O'Hare Intl London Heathrow
$886British Airways
Thu, Jan 14 - Mon, Jan 18

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American Airlines flights from Portugal to St. Louis

Our best American Airlines deals on Portugal to St. Louis flight tickets
American Airlines
Nov 12
OPO12:25 pmPorto
26h 51m
2 stops
STL9:16 amLambert-St Louis
Nov 16
STL11:35 amLambert-St Louis
18h 10m
2 stops
OPO11:45 amPorto
$875
American Airlines
Jan 14
LIS8:20 amLisbon Humberto Delgado
17h 59m
2 stops
STL8:19 pmLambert-St Louis
Jan 18
STL10:41 amLambert-St Louis
19h 24m
2 stops
LIS12:05 pmLisbon Humberto Delgado
$879
American Airlines
Jan 14
LIS8:20 amLisbon Humberto Delgado
21h 13m
2 stops
STL11:33 pmLambert-St Louis
Jan 18
STL1:58 pmLambert-St Louis
16h 07m
2 stops
LIS12:05 pmLisbon Humberto Delgado
$881

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
$966
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
$967
United Airlines
Dec 6
LIS5:00 amLisbon Humberto Delgado
14h 45m
1 stop
STL1:45 pmLambert-St Louis
Dec 27
STL8:05 amLambert-St Louis
18h 05m
2 stops
LIS8:10 amLisbon Humberto Delgado
$968

momondo Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Tue 10/20

9:20 am-8:51 pm

2 stops17h 31m

Lambert-St Louis

Tue 10/27

2:25 pm-11:25 am

2 stops16h 00m

$873

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Tue 10/6

5:00 am-8:51 pm

2 stops21h 51m

Lambert-St Louis

Mon 10/19

6:05 pm-5:50 pm

2 stops17h 45m

$874

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

12:25 pm-9:16 am

2 stops26h 51m

Lambert-St Louis

Mon 11/16

11:35 am-11:45 am

2 stops18h 10m

$875

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 1/14

8:20 am-8:19 pm

2 stops17h 59m

Lambert-St Louis

Mon 1/18

10:41 am-12:05 pm

2 stops19h 24m

$879

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 1/14

8:20 am-11:33 pm

2 stops21h 13m

Lambert-St Louis

Mon 1/18

1:58 pm-12:05 pm

2 stops16h 07m

$881

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 1/14

11:05 am-8:24 pm

1 stop15h 19m

Lambert-St Louis

Mon 1/18

5:37 pm-6:50 pm

2 stops19h 13m

$883

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

8:20 am-5:47 pm

2 stops39h 27m

Lambert-St Louis

Mon 11/16

5:29 pm-4:00 pm

2 stops40h 31m

$883

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

8:20 am-5:47 pm

2 stops39h 27m

Lambert-St Louis

Mon 11/16

5:29 pm-4:00 pm

2 stops40h 31m

$884

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 1/14

11:05 am-8:24 pm

1 stop15h 19m

Lambert-St Louis

Mon 1/18

1:58 pm-12:05 pm

2 stops16h 07m

$885
Quickest round-trip

LisbonSt. Louis

LIS Lisbon Humberto Delgado - STL Lambert-St Louis

LISSTL

Lisbon Humberto Delgado

Thu 1/14

11:05 am-8:24 pm

1 stop15h 19m

Lambert-St Louis

Mon 1/18

5:37 pm-2:55 pm

2 stops15h 18m

$886

Flights are sorted by cheapest round-trip flights first.

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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 14% 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

$520

Fastest flight time

15h 19m

Direct flights

None
The best one-way flight to St. Louis from Portugal in the past 72 hours is $520. The best round-trip flight deal from Portugal to St. Louis found on momondo in the last 72 hours is $873.
The fastest flight from Portugal to St. Louis takes 15h 19m
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
Chesterfield
Fairview Heights
Maryland Heights
St. Peters
Alton
Florissant
Collinsville
Hermann
O'Fallon
Clayton
Farmington
Fenton
Festus
Wentzville
Eureka
Edwardsville
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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