HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Missouri

$636+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — STL
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
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.

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 October 13, 2025.

This Expedia deal was found by Cheapflights users on 10/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:15 amOPO - STL
2 stops28h 11mKLM
Fri 10/316:14 pmSTL - OPO
2 stops35h 16mKLM
Deal found 10/11$1,080
This Gotogate deal was found by Cheapflights users on 10/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:10 pmOPO - STL
2 stops36h 34mLufthansa
Fri 10/3111:49 amSTL - OPO
1 stop16h 41mLufthansa
Deal found 10/11$1,101
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Mon 10/2712:35 pmOPO - STL
1 stop33h 00mUnited Airlines
Fri 10/3111:49 amSTL - OPO
1 stop16h 41mUnited Airlines
Deal found 10/11$1,380
This Mytrip deal was found by Cheapflights users on 10/11. 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.
Mon 10/274:10 pmOPO - STL
3 stops29h 25mMultiple Airlines
Fri 10/316:30 amSTL - OPO
2 stops19h 35mMultiple Airlines
Deal found 10/11$1,557

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 October 13, 2025.

Round-trip from

$850
(Delta)

One-way from

$636
(Thrive Travel)
From Porto to Missouri
Search Deals
One-way flight from Porto to Missouri
Search Deals

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 October 13, 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 2/6

6:30 am-9:44 am

2 stops33h 14m

Lambert-St Louis

Sun 2/8

10:45 am-10:30 am

2 stops17h 45m

$850

PortoKansas City

OPO - MCI

OPOMCI

Porto

Thu 2/19

6:35 am-10:32 am

2 stops33h 57m

Kansas City

Mon 2/23

9:59 am-10:30 am

2 stops18h 31m

$899

PortoKansas City

OPO - MCI

OPOMCI

Porto

Thu 2/19

6:00 am-7:47 pm

2 stops19h 47m

Kansas City

Mon 2/23

11:32 am-9:30 am

2 stops15h 58m

$905

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Mon 10/27

11:15 am-10:26 am

2 stops28h 11m

Lambert-St Louis

Fri 10/31

6:14 pm-10:30 am

2 stops35h 16m

$1,080

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Mon 10/27

4:10 pm-11:44 pm

2 stops36h 34m

Lambert-St Louis

Fri 10/31

11:49 am-9:30 am

1 stop16h 41m

$1,101

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Mon 10/27

12:35 pm-4:35 pm

1 stop33h 00m

Lambert-St Louis

Fri 10/31

11:49 am-9:30 am

1 stop16h 41m

$1,380

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Mon 10/27

4:10 pm-4:35 pm

3 stops29h 25m

Lambert-St Louis

Fri 10/31

6:30 am-7:05 am

2 stops19h 35m

$1,557

PortoKansas City

OPO - MCI

OPOMCI

Porto

Fri 11/14

5:35 pm-9:10 pm

2 stops33h 35m

$636

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 10/29

7:20 pm-7:16 pm

2 stops28h 56m

$838

PortoKansas City

OPO - MCI

OPOMCI

Porto

Fri 11/14

12:35 pm-9:10 pm

1 stop14h 35m

$932

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/10

Showing 1-10 of 11 results
1
2

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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Porto to Missouri?

    For as low as $905, Delta can have you in Missouri from Porto in 19h 47m. Airlines will cover a distance of 4333 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

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
Porto to Newark flights
Lisbon to Miami flights
Porto to John F Kennedy Intl flights
Porto to LaGuardia flights
Lisbon to LaGuardia flights
Lisbon to San Francisco flights
Lisbon to Boston flights
Lisbon to Los Angeles flights
Lisbon to Fort Lauderdale flights
Lisbon to O'Hare Intl flights
Porto to Miami flights
Lisbon to Dulles Intl flights
Lisbon to West Palm Beach flights
Porto to Fort Lauderdale flights
Porto to Boston flights
Lisbon to Philadelphia flights
Faro to John F Kennedy Intl flights
Lisbon to Seattle flights
Faro to Newark flights
Lisbon to Baltimore flights
Lisbon to Denver flights
Ponta Delgada to Newark flights
Lisbon to Orlando flights
Porto to West Palm Beach flights
Lisbon to Atlanta flights
Lisbon to Las Vegas flights
Lisbon to Reagan-National flights
Porto to O'Hare Intl flights
Ponta Delgada to LaGuardia flights
Ponta Delgada to John F Kennedy Intl flights
Porto to Orlando flights
Lisbon to Tampa flights
Porto to Los Angeles flights
Faro to LaGuardia flights
Lisbon to Hobby flights
Lisbon to Santa Ana flights
Lisbon to Indianapolis flights
Porto to Reagan-National flights
Porto to Baltimore flights
Porto to Dulles Intl flights
Porto to Las Vegas flights
Ponta Delgada to Boston flights
Lisbon to Honolulu flights
Lisbon to George Bush Intcntl 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.