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.

$384 Cheap Flights from Porto to Missouri in 2025/26

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Find the cheapest flights from Porto to Missouri

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6:00 am - 10:58 pm

OPO

STL

22h 58m2 stops

11:22 am - 2:55 pm

STL

OPO

21h 33m2 stops

$852United Airlines

Thu, Jan 22 - Mon, Jan 26

6:00 am - 7:27 pm

OPO

STL

19h 27m2 stops

11:20 am - 2:55 pm

STL

OPO

21h 35m2 stops

$853United Airlines

Thu, Jan 22 - Mon, Jan 26

6:00 am - 9:59 pm

OPO

MCI

21h 59m2 stops

3:24 pm - 11:40 am

MCI

OPO

38h 16m2 stops

$911United Airlines

Thu, Jan 22 - Mon, Jan 26

8:20 am - 11:10 am

OPO

STL

32h 50m2 stops

2:50 pm - 7:40 am

STL

OPO

34h 50m2 stops

$985American Airlines

Wed, Dec 24 - Sun, Dec 28

6:00 am - 1:55 pm

OPO

STL

13h 55m1 stop

1:05 pm - 3:15 pm

STL

OPO

20h 10m2 stops

$1,055Lufthansa

Wed, Dec 24 - Sun, Dec 28

6:00 am - 4:27 pm

OPO

STL

16h 27m2 stops

1:05 pm - 3:15 pm

STL

OPO

20h 10m2 stops

$1,060Lufthansa

Wed, Dec 24 - Sun, Dec 28

8:20 am - 6:49 pm

OPO

MCI

16h 29m2 stops

2:00 pm - 11:45 am

MCI

OPO

15h 45m2 stops

$1,125American Airlines

Wed, Dec 24 - Sun, Dec 28

8:55 am - 9:43 pm

OPO

STL

18h 48m3 stops

4:05 pm - 3:15 pm

STL

OPO

17h 10m2 stops

$1,383Air Canada

Wed, Dec 24 - Sun, Dec 28

8:00 pm - 10:43 pm

OPO

STL

32h 43m3 stops

4:05 pm - 8:00 am

STL

OPO

33h 55m3 stops

$1,449Multiple Airlines

Wed, Dec 24 - Sun, Dec 28

8:55 am - 9:43 pm

OPO

STL

18h 48m3 stops

4:05 pm - 3:15 pm

STL

OPO

17h 10m2 stops

$1,451Multiple Airlines

Wed, Dec 24 - Sun, Dec 28

United Airlines flights from Porto to Missouri

Our best United Airlines deals on Porto to Missouri flight tickets

United Airlines

Jan 22

OPO6:00 amPorto

22h 58m

2 stops

STL10:58 pmLambert-St Louis

Jan 26

STL11:22 amLambert-St Louis

21h 33m

2 stops

OPO2:55 pmPorto

$852

Find similar

United Airlines

Jan 22

OPO6:00 amPorto

19h 27m

2 stops

STL7:27 pmLambert-St Louis

Jan 26

STL11:20 amLambert-St Louis

21h 35m

2 stops

OPO2:55 pmPorto

$853

Find similar

United Airlines

Jan 22

OPO6:00 amPorto

21h 59m

2 stops

MCI9:59 pmKansas City

Jan 26

MCI3:24 pmKansas City

38h 16m

2 stops

OPO11:40 amPorto

$911

Find similar

American Airlines flights from Porto to Missouri

Our best American Airlines deals on Porto to Missouri flight tickets

American Airlines

Dec 24

OPO8:20 amPorto

32h 50m

2 stops

STL11:10 amLambert-St Louis

Dec 28

STL2:50 pmLambert-St Louis

34h 50m

2 stops

OPO7:40 amPorto

$985

Find similar

American Airlines

Dec 24

OPO8:20 amPorto

16h 29m

2 stops

MCI6:49 pmKansas City

Dec 28

MCI2:00 pmKansas City

15h 45m

2 stops

OPO11:45 amPorto

$1,125

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Thu 1/22

6:00 am-10:58 pm

2 stops22h 58m

Lambert-St Louis

Mon 1/26

11:22 am-2:55 pm

2 stops21h 33m

$852

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Thu 1/22

6:00 am-7:27 pm

2 stops19h 27m

Lambert-St Louis

Mon 1/26

11:20 am-2:55 pm

2 stops21h 35m

$853

PortoKansas City

OPO - MCI

OPOMCI

Porto

Thu 1/22

6:00 am-9:59 pm

2 stops21h 59m

Kansas City

Mon 1/26

3:24 pm-11:40 am

2 stops38h 16m

$911

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 12/24

8:20 am-11:10 am

2 stops32h 50m

Lambert-St Louis

Sun 12/28

2:50 pm-7:40 am

2 stops34h 50m

$985

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 12/24

6:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Sun 12/28

1:05 pm-3:15 pm

2 stops20h 10m

$1,055

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 12/24

6:00 am-4:27 pm

2 stops16h 27m

Lambert-St Louis

Sun 12/28

1:05 pm-3:15 pm

2 stops20h 10m

$1,060

PortoKansas City

OPO - MCI

OPOMCI

Porto

Wed 12/24

8:20 am-6:49 pm

2 stops16h 29m

Kansas City

Sun 12/28

2:00 pm-11:45 am

2 stops15h 45m

$1,125

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 12/24

8:55 am-9:43 pm

3 stops18h 48m

Lambert-St Louis

Sun 12/28

4:05 pm-3:15 pm

2 stops17h 10m

$1,383

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 12/24

8:00 pm-10:43 pm

3 stops32h 43m

Lambert-St Louis

Sun 12/28

4:05 pm-8:00 am

3 stops33h 55m

$1,449

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 12/24

8:55 am-9:43 pm

3 stops18h 48m

Lambert-St Louis

Sun 12/28

4:05 pm-3:15 pm

2 stops17h 10m

$1,451

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

Can stopping save me money on Porto to Missouri flights?

You could potentially save up to 11% 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 55m
Direct flights	None

The fastest flight from Porto to Missouri takes 13h 55m

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

Search flight deals

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.