HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Missouri

$803+ Cheap flights from Porto (OPO) to Missouri

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — STL
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Porto to Missouri with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$803
(Booking.com)
Provider with most accurate pricing for Porto-Kansas City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Kansas City flights.
Search Deals
From Porto to Missouri
Search Deals

Find flight deals from Porto to Missouri

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 May 1, 2025.

This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/166:00 amOPO - STL
2 stops19h 58mAir Canada
Tue 5/207:30 amSTL - OPO
2 stops22h 00mAir Canada
Deal found 4/30$803
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Fri 5/1612:35 pmOPO - STL
1 stop28h 33mUnited Airlines
Tue 5/208:25 amSTL - OPO
2 stops19h 20mUnited Airlines
Deal found 5/1$1,050
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Fri 5/168:40 amOPO - STL
2 stops17h 03mMultiple Airlines
Tue 5/207:30 amSTL - OPO
3 stops30h 10mMultiple Airlines
Deal found 4/30$1,246

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 May 1, 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

Fri 5/16

6:00 am-7:58 pm

2 stops19h 58m

Lambert-St Louis

Tue 5/20

7:30 am-11:30 am

2 stops22h 00m

$803

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Fri 5/16

12:35 pm-11:08 am

1 stop28h 33m

Lambert-St Louis

Tue 5/20

8:25 am-9:45 am

2 stops19h 20m

$1,050

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Fri 5/16

8:40 am-7:43 pm

2 stops17h 03m

Lambert-St Louis

Tue 5/20

7:30 am-7:40 pm

3 stops30h 10m

$1,246

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Tue 7/8

4:50 pm-10:45 pm

2 stops35h 55m

$824

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Tue 7/8

12:35 pm-9:05 pm

1 stop14h 30m

$984

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Tue 7/8

12:50 pm-8:00 pm

1 stop13h 10m

$1,091

PortoKansas City

OPO - MCI

OPOMCI

Porto

Thu 6/5

10:05 am-11:38 pm

3 stops43h 33m

$1,810

PortoKansas City

OPO - MCI

OPOMCI

Porto

Thu 6/5

6:00 am-5:38 pm

2 stops17h 38m

$2,204

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

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 May 1, 2025.
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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.
Turkish Airlines
7.3
Good
3,791 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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.
Air Canada
7.0
Good
9,252 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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.
Lufthansa
6.7
Okay
7,048 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

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.

  • What are the cheapest airlines to fly from Porto to Missouri one-way?

    One-way options have recently been found by users for as low as $830 on Turkish Airlines. Other airlines that offer cheap prices include United Airlines from $1,091 and Lufthansa from $2,204 one-way.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Porto to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Newark flights
Lisbon to John F Kennedy Intl flights
Lisbon to Miami flights
Porto to Newark flights
Lisbon to LaGuardia flights
Porto to John F Kennedy Intl flights
Porto to LaGuardia flights
Lisbon to Dulles Intl flights
Lisbon to Fort Lauderdale flights
Lisbon to West Palm Beach flights
Lisbon to Boston flights
Lisbon to San Francisco flights
Porto to Miami flights
Lisbon to Baltimore flights
Lisbon to O'Hare Intl flights
Porto to Boston flights
Lisbon to Los Angeles flights
Lisbon to Seattle flights
Faro to Newark flights
Porto to Fort Lauderdale flights
Porto to West Palm Beach flights
Lisbon to Orlando flights
Ponta Delgada to John F Kennedy Intl flights
Lisbon to Philadelphia flights
Lisbon to Las Vegas flights
Faro to John F Kennedy Intl flights
Ponta Delgada to Boston flights
Lisbon to Reagan-National flights
Faro to LaGuardia flights
Lisbon to Stewart flights
Porto to Orlando flights
Porto to San Francisco flights
Lisbon to Tampa flights
Ponta Delgada to LaGuardia flights
Porto to Dulles Intl flights
Porto to Los Angeles flights
Ponta Delgada to Newark flights
Porto to O'Hare Intl flights
Lisbon to Atlanta flights
Lisbon to Denver flights
Lisbon to Detroit flights
Lisbon to Portland flights
Lisbon to Hobby flights
Lisbon to Charlotte flights
Lisbon to Dallas/Fort Worth flights
Porto to Baltimore flights
Porto to Reagan-National flights
Funchal to Orlando flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Privacy Preferences©2025 Cheapflights