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$337+ Cheap flights from Missouri to Porto (OPO)

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OPO
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Missouri to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Missouri (USMO) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Round-trip from

$754
(KLM)

One-way from

$337
(Kiwi.com)
From Missouri to Porto
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One-way flight from Missouri to Porto
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Find flight deals from Missouri to Porto

Cheapest flights from Missouri to Porto
Explore the most affordable flight options available from Missouri to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This KLM deal was found by Cheapflights users on 1/29. 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.
Thu 2/2711:38 amMCI - OPO
2 stops17h 12mKLM
Thu 3/66:15 amOPO - MCI
2 stops19h 27mKLM
Deal found 1/29$754
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Wed 2/123:45 pmSTL - OPO
1 stop17h 30mUnited Airlines
Wed 2/196:00 amOPO - STL
2 stops39h 06mUnited Airlines
Deal found 1/29$808
This Expedia deal was found by Cheapflights users on 1/29. 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.
Wed 2/123:45 pmSTL - OPO
1 stop17h 30mLufthansa
Wed 2/196:00 amOPO - STL
1 stop13h 55mLufthansa
Deal found 1/29$814
This Expedia deal was found by Cheapflights users on 1/29. 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.
Sat 3/16:48 pmMCI - OPO
2 stops22h 47mLufthansa
Fri 3/71:45 pmOPO - MCI
2 stops38h 15mLufthansa
Deal found 1/29$815
This United Airlines deal was found by Cheapflights users on 1/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/112:19 pmMCI - OPO
2 stops17h 21mUnited Airlines
Fri 3/712:30 pmOPO - MCI
2 stops37h 08mUnited Airlines
Deal found 1/30$826
This Mytrip deal was found by Cheapflights users on 1/30. 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 2/712:05 pmMCI - OPO
3 stops17h 45mMultiple Airlines
Tue 2/1812:40 pmOPO - MCI
3 stops30h 15mMultiple Airlines
Deal found 1/30$938
This Orbitz deal was found by Cheapflights users on 1/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/35:27 pmSTL - OPO
2 stops20h 28mIberia
Mon 5/1212:20 pmOPO - STL
2 stops17h 20mIberia
Deal found 1/28$945
This United deal was found by Cheapflights users on 1/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:22 pmSTL - OPO
1 stop33h 23mMultiple Airlines
Tue 5/204:35 pmOPO - STL
1 stop26h 55mMultiple Airlines
Deal found 1/28$951
This Justfly.com deal was found by Cheapflights users on 1/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:30 pmSTL - OPO
1 stop14h 15mAir Canada
Sat 9/2712:15 pmOPO - STL
2 stops33h 06mAir Canada
Deal found 1/29$1,072
This Delta deal was found by Cheapflights users on 1/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/117:12 pmSTL - OPO
2 stops21h 03mDelta
Sun 4/205:00 amOPO - STL
2 stops17h 45mDelta
Deal found 1/29$1,142
This Air Canada deal was found by Cheapflights users on 1/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/711:40 amMCI - OPO
3 stops16h 05mAir Canada
Mon 7/2110:00 amOPO - MCI
3 stops17h 35mAir Canada
Deal found 1/29$2,107
This Justfly.com deal was found by Cheapflights users on 1/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:00 amMCI - OPO
2 stops43h 45mTurkish Airlines
Tue 9/304:50 pmOPO - MCI
2 stops34h 45mTurkish Airlines
Deal found 1/29$3,765

Find flights from Missouri to Porto within your budget

Customize your flight search to find flights from Missouri to Porto 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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Thu 2/27

11:38 am-10:50 am

2 stops17h 12m

Porto

Thu 3/6

6:15 am-7:42 pm

2 stops19h 27m

$754

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

Wed 2/12

3:45 pm-3:15 pm

1 stop17h 30m

Porto

Wed 2/19

6:00 am-3:06 pm

2 stops39h 06m

$808

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

Wed 2/12

3:45 pm-3:15 pm

1 stop17h 30m

Porto

Wed 2/19

6:00 am-1:55 pm

1 stop13h 55m

$814

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sat 3/1

6:48 pm-11:35 pm

2 stops22h 47m

Porto

Fri 3/7

1:45 pm-10:00 pm

2 stops38h 15m

$815

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sat 3/1

12:19 pm-11:40 am

2 stops17h 21m

Porto

Fri 3/7

12:30 pm-7:38 pm

2 stops37h 08m

$826

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

Sat 5/3

5:27 pm-7:55 pm

2 stops20h 28m

Porto

Mon 5/12

12:20 pm-11:40 pm

2 stops17h 20m

$945

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

Sat 5/10

6:22 pm-9:45 am

1 stop33h 23m

Porto

Tue 5/20

4:35 pm-1:30 pm

1 stop26h 55m

$951

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Thu 2/27

12:19 pm-3:10 pm

2 stops20h 51m

Porto

Thu 3/6

7:05 am-3:44 pm

3 stops38h 39m

$1,060

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

Fri 4/11

7:12 pm-10:15 pm

2 stops21h 03m

Porto

Sun 4/20

5:00 am-4:45 pm

2 stops17h 45m

$1,142

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Mon 7/7

11:40 am-9:45 am

3 stops16h 05m

Porto

Mon 7/21

10:00 am-9:35 pm

3 stops17h 35m

$2,107

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 18 results
1
2

Best time to book a flight from Missouri to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Missouri 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.

Travel insights for flights from Missouri to Porto

Get recent, data-driven insights about flights from Missouri to Porto including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Missouri to Porto (average of $523). Flying from Missouri to Porto in June is currently the most expensive (average of $1,091). 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.

What is the cheapest time of day to fly from MO to OPO?

Find hourly flight availability from Missouri to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Porto as you normally would.

Rainfall in Porto by month

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

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

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

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated January 30, 2025.
Read through reviews of airlines operating flights from Missouri to Porto, such as Delta, KLM and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,450 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,906 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,903 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines
7.3
Good
1,315 reviews
Delta
8.0
Very good
8,450 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Porto. 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 into for flights to Porto from Missouri?

    Located just 6.8 mi from the city center, Porto (OPO) is the airport most travelers will use when flying to Porto from Missouri.

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

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at $496. United Airlines flights start at $658 while deals on Air Canada start at $664 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missouri to Porto 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 Missouri to Porto?

    Currently, January is the cheapest month in which you can book a flight from Missouri to Porto (average of $523). Flying from Missouri to Porto in June is currently the most expensive (average of $1,091). 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

Traveling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Alternative routes for Missouri to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Missouri to Porto

Discover the top 3 airlines that operate flights from Missouri to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$564Average$1,083FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$612Average$987FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$682Average$1,226FlexibilityNo cancel feeOn-time69%
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