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.

$948 Cheap Flights from Porto to Missouri in 2026/27

Find the cheapest flights from Porto to Missouri

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

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

1:08 pm - 9:30 amSTL Lambert-St Louis-OPO Porto

14h 22m2 stops Chicago O'Hare Intl Newark

$948United Airlines

Thu, Nov 12 - Mon, Nov 16

6:00 am - 9:40 pmOPO Porto-STL Lambert-St Louis

21h 40m2 stops Frankfurt am Main Chicago O'Hare Intl

9:59 am - 9:30 amSTL Lambert-St Louis-OPO Porto

17h 31m1 stop Newark

$964United 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

1:08 pm - 9:30 amSTL Lambert-St Louis-OPO Porto

14h 22m2 stops Chicago O'Hare Intl Newark

$966United Airlines

Thu, Nov 12 - Mon, Nov 16

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

$971United Airlines

Thu, Nov 12 - Mon, Nov 16

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

$987United Airlines

Thu, Nov 12 - Mon, Nov 16

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

$989United Airlines

Thu, Nov 12 - Mon, Nov 16

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

$994United Airlines

Thu, Nov 12 - Mon, Nov 16

8:20 am - 7:52 pmOPO Porto-STL Lambert-St Louis

17h 32m2 stops Madrid Barajas Chicago O'Hare Intl

8:07 pm - 4:45 pmSTL Lambert-St Louis-OPO Porto

38h 38m2 stops Chicago O'Hare Intl London Heathrow

$3,060Multiple Airlines

Tue, Dec 22 - Sat, Dec 26

12:35 pm - 1:45 pmOPO Porto-STL Lambert-St Louis

31h 10m1 stop Frankfurt am Main

4:05 pm - 3:10 pmSTL Lambert-St Louis-OPO Porto

17h 05m2 stops Toronto Pearson Intl Frankfurt am Main

$3,484Multiple Airlines

Tue, Dec 22 - Sat, Dec 26

12:35 pm - 10:59 pmOPO Porto-STL Lambert-St Louis

16h 24m1 stop Newark

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

16h 00m1 stop Newark

$4,870Lufthansa

Tue, Dec 22 - Sat, Dec 26

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United Airlines flights from Porto to Missouri

Our best United Airlines deals on Porto to Missouri flight tickets

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

$948

United Airlines

Nov 12

OPO6:00 amPorto

21h 40m

2 stops

STL9:40 pmLambert-St Louis

Nov 16

STL9:59 amLambert-St Louis

17h 31m

1 stop

OPO9:30 amPorto

$964

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

$966

Fly from

Fly to

Route

Depart

Return

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

1:08 pm-9:30 am

2 stops14h 22m

$948

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Thu 11/12

6:00 am-9:40 pm

2 stops21h 40m

Lambert-St Louis

Mon 11/16

9:59 am-9:30 am

1 stop17h 31m

$964

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

$966

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

$971

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

$987

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

$989

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

$994

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Tue 12/22

8:20 am-7:52 pm

2 stops17h 32m

Lambert-St Louis

Sat 12/26

8:07 pm-4:45 pm

2 stops38h 38m

$3,060

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Tue 12/22

12:35 pm-1:45 pm

1 stop31h 10m

Lambert-St Louis

Sat 12/26

4:05 pm-3:10 pm

2 stops17h 05m

$3,484

PortoSt. Louis

OPO Porto - STL Lambert-St Louis

OPOSTL

Porto

Tue 12/22

12:35 pm-10:59 pm

1 stop16h 24m

Lambert-St Louis

Sat 12/26

11:30 am-9:30 am

1 stop16h 00m

$4,870

Flights are sorted by cheapest round-trip flights first.

Sorted 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

Can stopping save me money on Porto to Missouri flights?

You could potentially save up to 39% 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

Best Price Found	$948
Fastest flight time	16h 34m
Direct flights	None

The best flight deal from Porto to Missouri found on momondo in the last 72 hours is $948

The fastest flight from Porto to Missouri takes 16h 34m

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.