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$333+ Cheap flights from Porto (OPO) to Missouri

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — STL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Porto to Missouri

Keep the following information in mind while searching for Porto to Missouri flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$976
(United Airlines)

One-way from

$333
(Kiwi.com)
Provider with most accurate pricing for Porto-Kansas City flight deals.
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Provider most trusted by Cheapflights users for Porto-Kansas City flights.
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From Porto to Missouri
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One-way flight from Porto to Missouri
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Cheapest flights from Porto to Missouri
Explore the most affordable flight options available from Porto to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:00 amOPO - STL
2 stops19h 37mUnited Airlines
Sat 6/71:30 pmSTL - OPO
1 stop14h 05mUnited Airlines
Deal found 4/16$976
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:15 amOPO - STL
3 stops34h 30mMultiple Airlines
Sat 6/77:30 amSTL - OPO
2 stops20h 05mMultiple Airlines
Deal found 4/16$1,082

Cheapflights Fare Finder

Customize your flight search to find flights from Porto to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from Porto to Missouri that are best for you.

Fly from

Porto

Fly to

Missouri

Route

Depart

Return

Price

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Sat 5/31

6:00 am-7:37 pm

2 stops19h 37m

Lambert-St Louis

Sat 6/7

1:30 pm-9:35 am

1 stop14h 05m

$976

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Sat 5/31

6:15 am-10:45 am

3 stops34h 30m

Lambert-St Louis

Sat 6/7

7:30 am-9:35 am

2 stops20h 05m

$1,082

PortoKansas City

OPO - MCI

OPOMCI

Porto

Thu 5/8

8:00 am-8:12 pm

2 stops42h 12m

$333

PortoKansas City

OPO - MCI

OPOMCI

Porto

Thu 5/8

12:35 pm-9:06 pm

1 stop14h 31m

$979

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Best time to book a flight from Porto to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto to Missouri

Rainfall in Missouri by month

Plan your trip to Missouri by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

Plan your trip to Missouri by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Missouri, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated April 17, 2025.
United Airlines
7.4
Good
8,667 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,667 reviews
United Airlines
7.4
Good
8,667 reviews

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from Porto to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Porto to Missouri?

    If you book a flight to Missouri from Porto, you will be flying from Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto.

  • Can I find deals for flights from Porto to Missouri that include hotel bookings?

    Yes. In addition to deals on Porto to Missouri flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Missouri?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Missouri.

  • Can I find deals for business class flights from Porto to Missouri?

    Yes. Cheapflights offers flight deals from Porto to Missouri by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto to Missouri?

    Currently, August is the cheapest month in which you can book a flight from Porto to Missouri (average of $311). Flying from Porto to Missouri in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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