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$411+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — STL
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 November 26, 2025.

This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:25 pmOPO - STL
2 stops31h 59mAmerican Airlines
Sat 12/137:35 pmSTL - OPO
2 stops38h 25mAmerican Airlines
Deal found 11/26$730
This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:40 pmOPO - STL
2 stops19h 57mAmerican Airlines
Sat 12/137:35 pmSTL - OPO
2 stops34h 10mAmerican Airlines
Deal found 11/26$736
This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:40 pmOPO - STL
2 stops18h 10mAmerican Airlines
Fri 12/124:36 pmSTL - OPO
2 stops37h 09mAmerican Airlines
Deal found 11/26$743
This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:25 pmOPO - STL
2 stops31h 59mAmerican Airlines
Tue 12/164:36 pmSTL - OPO
2 stops33h 04mAmerican Airlines
Deal found 11/26$762
This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:40 pmOPO - STL
2 stops18h 10mAmerican Airlines
Tue 12/164:36 pmSTL - OPO
2 stops33h 04mAmerican Airlines
Deal found 11/26$770
This Iberia deal was found by Cheapflights users on 11/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:40 pmOPO - STL
2 stops32h 07mIberia
Sun 12/142:54 pmSTL - OPO
2 stops38h 51mIberia
Deal found 11/26$771
This Iberia deal was found by Cheapflights users on 11/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:25 pmOPO - STL
2 stops38h 13mIberia
Sun 12/142:54 pmSTL - OPO
2 stops38h 51mIberia
Deal found 11/26$774
This British Airways deal was found by Cheapflights users on 11/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:35 pmOPO - STL
2 stops51h 59mBritish Airways
Fri 12/1211:50 amSTL - OPO
2 stops25h 10mBritish Airways
Deal found 11/26$778
This British Airways deal was found by Cheapflights users on 11/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:50 pmOPO - STL
2 stops31h 38mBritish Airways
Sat 12/132:09 pmSTL - OPO
2 stops23h 06mBritish Airways
Deal found 11/26$781
This KLM deal was found by Cheapflights users on 11/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amOPO - MCI
2 stops18h 47mKLM
Sun 12/1410:45 amMCI - OPO
2 stops17h 45mKLM
Deal found 11/25$1,050

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 November 26, 2025.

Round-trip from

$729
(American Airlines)

One-way from

$411
(Kiwi.com)
From Porto to Missouri
Search Deals
One-way flight from Porto to Missouri
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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 November 26, 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

PortoKansas City

OPO - MCI

OPOMCI

Porto

Wed 2/4

8:20 am-9:06 pm

2 stops18h 46m

Kansas City

Sun 2/8

5:48 am-7:40 am

2 stops19h 52m

$798

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 1/14

12:30 pm-4:03 pm

2 stops57h 33m

Lambert-St Louis

Sun 1/18

3:50 pm-11:40 am

1 stop13h 50m

$838

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Sat 12/6

6:00 am-5:29 pm

2 stops17h 29m

Lambert-St Louis

Mon 12/15

2:38 pm-10:30 am

2 stops13h 52m

$840

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Wed 1/14

11:15 am-8:43 pm

2 stops39h 28m

Lambert-St Louis

Sun 1/18

6:35 am-10:30 am

2 stops21h 55m

$845

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Sun 12/7

8:20 am-2:49 pm

2 stops36h 29m

Lambert-St Louis

Sat 12/13

7:35 pm-4:00 pm

2 stops38h 25m

$855

PortoSt. Louis

OPO - STL

OPOSTL

Porto

Mon 12/8

8:20 am-11:14 am

2 stops32h 54m

Lambert-St Louis

Sat 12/13

4:49 pm-11:45 am

2 stops36h 56m

$879

PortoKansas City

OPO - MCI

OPOMCI

Porto

Wed 2/4

6:00 am-9:03 pm

2 stops21h 03m

Kansas City

Sun 2/8

9:57 am-10:30 am

2 stops18h 33m

$895

PortoKansas City

OPO - MCI

OPOMCI

Porto

Wed 12/10

6:00 am-6:47 pm

2 stops18h 47m

Kansas City

Sun 12/14

10:45 am-10:30 am

2 stops17h 45m

$1,050

PortoKansas City

OPO - MCI

OPOMCI

Porto

Sun 1/11

12:15 pm-3:33 pm

3 stops57h 18m

$427

PortoKansas City

OPO - MCI

OPOMCI

Porto

Sat 1/10

1:55 pm-3:33 pm

3 stops55h 38m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 27 results
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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 $840, American Airlines can have you in Missouri from Porto in 17h 29m. Airlines will cover a distance of 4154 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

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Alternative routes for Porto to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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