What is the cheapest airline that flies from Porto to Missouri?

Iberia and TAP AIR PORTUGAL are the most popular carriers operating from Porto to Missouri

When did momondo last update prices for flights from Porto Airport to Missouri?

Prices for flights from Porto Airport to Missouri are refreshed on a daily basis.

How old do you have to be to fly from Porto Airport to Missouri?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Missouri.

What documentation or ID do you need to fly to Missouri?

The travel and health documents you'll need for your trip to Missouri 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 Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$580 Cheap Flights from Porto to Missouri in 2026

Find the cheapest flights from Porto to Missouri

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:25 pm - 11:42 pmOPO Porto-STL Lambert-St Louis

17h 17m2 stops Madrid Barajas Dallas/Fort Worth

11:01 am - 11:45 amSTL Lambert-St Louis-OPO Porto

18h 44m2 stops Chicago O'Hare Intl Madrid Barajas

$934Iberia

Tue, Sep 1 - Sun, Sep 13

12:25 pm - 11:43 pmOPO Porto-STL Lambert-St Louis

17h 18m2 stops Madrid Barajas Dallas/Fort Worth

11:01 am - 4:00 pmSTL Lambert-St Louis-OPO Porto

22h 59m2 stops Chicago O'Hare Intl Madrid Barajas

$942Iberia

Fri, Sep 11 - Mon, Sep 14

8:40 pm - 11:43 pmOPO Porto-STL Lambert-St Louis

33h 03m2 stops Madrid Barajas Dallas/Fort Worth

3:20 pm - 4:00 pmSTL Lambert-St Louis-OPO Porto

18h 40m2 stops Dallas/Fort Worth Madrid Barajas

$953Iberia

Mon, Sep 28 - Mon, Oct 5

6:00 am - 7:23 pmOPO Porto-STL Lambert-St Louis

19h 23m2 stops Frankfurt am Main Chicago O'Hare Intl

9:40 am - 9:30 amSTL Lambert-St Louis-OPO Porto

17h 50m2 stops Chicago O'Hare Intl Newark

$962United Airlines

Thu, Nov 12 - Mon, Nov 16

6:00 am - 11:24 pmOPO Porto-STL Lambert-St Louis

23h 24m2 stops Frankfurt am Main Chicago O'Hare Intl

11:29 am - 9:30 amSTL Lambert-St Louis-OPO Porto

16h 01m1 stop Newark

$963United Airlines

Thu, Nov 12 - Mon, Nov 16

6:00 am - 11:24 pmOPO Porto-STL Lambert-St Louis

23h 24m2 stops Frankfurt am Main Chicago O'Hare Intl

11:29 am - 9:30 amSTL Lambert-St Louis-OPO Porto

16h 01m1 stop Newark

$964United Airlines

Thu, Nov 12 - Mon, Nov 16

6:00 am - 7:23 pmOPO Porto-STL Lambert-St Louis

19h 23m2 stops Frankfurt am Main Chicago O'Hare Intl

9:40 am - 9:30 amSTL Lambert-St Louis-OPO Porto

17h 50m2 stops Chicago O'Hare Intl Newark

$965United Airlines

Thu, Nov 12 - Mon, Nov 16

6:00 am - 10:59 pmOPO Porto-STL Lambert-St Louis

22h 59m2 stops Frankfurt am Main Chicago O'Hare Intl

12:28 pm - 6:55 amSTL Lambert-St Louis-OPO Porto

12h 27m1 stop Newark

$971Lufthansa

Fri, Sep 11 - Mon, Sep 14

4:35 pm - 1:25 pmOPO Porto-STL Lambert-St Louis

26h 50m1 stop Frankfurt am Main

12:25 pm - 9:45 amSTL Lambert-St Louis-OPO Porto

15h 20m1 stop Newark

$978Lufthansa

Tue, Sep 1 - Sun, Sep 13

12:35 pm - 9:52 pmOPO Porto-STL Lambert-St Louis

15h 17m1 stop Newark

5:00 pm - 9:30 amSTL Lambert-St Louis-OPO Porto

10h 30m1 stop Newark

$986United Airlines

Thu, Nov 12 - Mon, Nov 16

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Lufthansa flights from Porto to Missouri

Our best Lufthansa deals on Porto to Missouri flight tickets

Lufthansa

Sep 11

OPO6:00 amPorto

22h 59m

2 stops

STL10:59 pmLambert-St Louis

Sep 14

STL12:28 pmLambert-St Louis

12h 27m

1 stop

OPO6:55 amPorto

$971

Lufthansa

Sep 1

OPO4:35 pmPorto

26h 50m

1 stop

STL1:25 pmLambert-St Louis

Sep 13

STL12:25 pmLambert-St Louis

15h 20m

1 stop

OPO9:45 amPorto

$978

Lufthansa

Oct 4

OPO12:10 pmPorto

31h 15m

1 stop

STL1:25 pmLambert-St Louis

Oct 25

STL1:08 pmLambert-St Louis

17h 37m

2 stops

OPO11:45 amPorto

$1,155

Iberia flights from Porto to Missouri

Our best Iberia deals on Porto to Missouri flight tickets

Iberia

Sep 1

OPO12:25 pmPorto

17h 17m

2 stops

STL11:42 pmLambert-St Louis

Sep 13

STL11:01 amLambert-St Louis

18h 44m

2 stops

OPO11:45 amPorto

$934

Iberia

Sep 11

OPO12:25 pmPorto

17h 18m

2 stops

STL11:43 pmLambert-St Louis

Sep 14

STL11:01 amLambert-St Louis

22h 59m

2 stops

OPO4:00 pmPorto

$942

Iberia

Sep 28

OPO8:40 pmPorto

33h 03m

2 stops

STL11:43 pmLambert-St Louis

Oct 5

STL3:20 pmLambert-St Louis

18h 40m

2 stops

OPO4:00 pmPorto

$953

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Tue 9/1

12:25 pm-11:42 pm

2 stops17h 17m

Lambert-St Louis

Sun 9/13

11:01 am-11:45 am

2 stops18h 44m

$934

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Fri 9/11

12:25 pm-11:43 pm

2 stops17h 18m

Lambert-St Louis

Mon 9/14

11:01 am-4:00 pm

2 stops22h 59m

$942

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Mon 9/28

8:40 pm-11:43 pm

2 stops33h 03m

Lambert-St Louis

Mon 10/5

3:20 pm-4:00 pm

2 stops18h 40m

$953

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

6:00 am-7:23 pm

2 stops19h 23m

Lambert-St Louis

Mon 11/16

9:40 am-9:30 am

2 stops17h 50m

$962

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

$963

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

$964

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

6:00 am-7:23 pm

2 stops19h 23m

Lambert-St Louis

Mon 11/16

9:40 am-9:30 am

2 stops17h 50m

$965

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Fri 9/11

6:00 am-10:59 pm

2 stops22h 59m

Lambert-St Louis

Mon 9/14

12:28 pm-6:55 am

1 stop12h 27m

$971

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Tue 9/1

4:35 pm-1:25 pm

1 stop26h 50m

Lambert-St Louis

Sun 9/13

12:25 pm-9:45 am

1 stop15h 20m

$978

Quickest round-trip

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

12:35 pm-9:52 pm

1 stop15h 17m

Lambert-St Louis

Mon 11/16

5:00 pm-9:30 am

1 stop10h 30m

$986

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 Porto to Missouri

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

Can stopping save me money on Porto to Missouri flights?

You could potentially save up to 41% on your flight if you consider stops on a Porto to Missouri flight.

Cheap Porto to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Missouri

Fastest flight time	13h 26m
Direct flights	None

The fastest flight from Porto to Missouri takes 13h 26m

There are no direct flights from Porto to Missouri. There are no popular flight routes from Porto to Missouri.

Search flight deals

Frequently asked questions about flying from Porto to Missouri

When did momondo last update prices for flights from Porto Airport to Missouri?
Prices for flights from Porto Airport to Missouri are refreshed on a daily basis.
How old do you have to be to fly from Porto Airport to Missouri?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Missouri.
What documentation or ID do you need to fly to Missouri?
The travel and health documents you'll need for your trip to Missouri 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 Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Missouri?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Missouri from Porto.

Can I find flights from Porto to Missouri with flexible booking policies on momondo?

All flight searches from Porto to Missouri on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Porto to Missouri?

momondo helps you find the best flight between Porto and Missouri by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Porto to Missouri 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.