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$541+ Cheap flights from Kansas City (MCI) to Porto (OPO)

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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — OPO
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find flight deals from Kansas City to Porto

Cheapest flights from Kansas City to Porto
Explore the most affordable flight options available from Kansas City to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This KLM deal was found by Cheapflights users on 10/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:13 pmMCI - OPO
2 stops14h 17mKLM
Wed 12/106:00 amOPO - MCI
2 stops21h 08mKLM
Deal found 10/28$541
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:30 amMCI - OPO
2 stops22h 00mDelta
Thu 1/156:35 amOPO - MCI
2 stops20h 30mDelta
Deal found 10/26$546
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/1911:36 amMCI - OPO
2 stops15h 54mUnited Airlines
Wed 12/36:00 amOPO - MCI
2 stops21h 58mUnited Airlines
Deal found 10/27$583
This United deal was found by Cheapflights users on 10/28. 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.
Tue 12/26:27 pmMCI - OPO
3 stops38h 58mMultiple Airlines
Wed 12/106:00 amOPO - MCI
2 stops21h 58mMultiple Airlines
Deal found 10/28$728
This United Airlines deal was found by Cheapflights users on 10/28. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amMCI - OPO
2 stops27h 25mUnited Airlines
Wed 12/106:00 amOPO - MCI
3 stops38h 21mUnited Airlines
Deal found 10/28$828
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:58 amMCI - OPO
2 stops18h 32mUnited Airlines
Fri 11/76:00 amOPO - MCI
2 stops38h 21mUnited Airlines
Deal found 10/26$881
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 12/112:32 pmMCI - OPO
2 stops19h 28mAmerican Airlines
Thu 12/188:20 amOPO - MCI
2 stops19h 51mAmerican Airlines
Deal found 10/26$954
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amMCI - OPO
3 stops22h 15mMultiple Airlines
Wed 12/106:00 pmOPO - MCI
3 stops35h 15mMultiple Airlines
Deal found 10/28$1,014
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:08 amMCI - OPO
3 stops27h 27mMultiple Airlines
Thu 12/1812:05 pmOPO - MCI
3 stops35h 05mMultiple Airlines
Deal found 10/26$1,483
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:00 amMCI - OPO
3 stops29h 30mMultiple Airlines
Thu 1/1512:05 pmOPO - MCI
3 stops30h 34mMultiple Airlines
Deal found 10/26$1,518

Cheap flight deals from Kansas City to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$541
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$775
Provider with most accurate pricing for Kansas City-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kansas City-Porto flights.
Search Deals
From Kansas City to Porto
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($252 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansas City 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 October 28, 2025.
Use the filters below to find and compare flights from Kansas City to Porto that are best for you.

Fly from

Kansas City

Fly to

Porto

Route

Depart

Return

Price

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sat 12/6

11:35 am-10:30 am

2 stops16h 55m

Porto

Sat 12/13

6:00 am-9:13 pm

2 stops21h 13m

$541

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Fri 1/9

3:24 pm-12:05 pm

2 stops14h 41m

Porto

Fri 1/16

6:00 am-10:40 pm

2 stops22h 40m

$541

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Tue 12/30

6:30 am-10:30 am

2 stops22h 00m

Porto

Thu 1/15

6:35 am-9:05 pm

2 stops20h 30m

$546

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Mon 2/16

7:00 am-10:30 am

2 stops21h 30m

Porto

Mon 2/23

6:30 am-11:04 pm

2 stops22h 34m

$566

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sun 2/15

12:37 pm-11:40 am

2 stops17h 03m

Porto

Sat 2/21

12:30 pm-9:59 pm

2 stops39h 29m

$572

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Wed 11/19

11:36 am-9:30 am

2 stops15h 54m

Porto

Wed 12/3

6:00 am-5:25 pm

2 stops17h 25m

$583

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sat 3/14

5:45 pm-9:30 am

2 stops34h 45m

Porto

Wed 3/25

12:30 pm-10:45 am

2 stops27h 15m

$638

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sat 3/14

5:45 pm-9:30 am

2 stops34h 45m

Porto

Fri 3/27

6:00 am-9:35 pm

2 stops20h 35m

$675

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Tue 3/24

11:33 am-11:40 am

2 stops19h 07m

Porto

Mon 3/30

12:35 pm-10:29 pm

1 stop15h 54m

$699

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Compare providers for flights from Kansas City to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kansas City to Porto in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kansas City-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Kansas City-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Kansas City-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kansas City-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kansas City-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kansas City to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Kansas City 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 Kansas City to Porto

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

Currently, November is the cheapest month in which you can book a flight from Kansas City to Porto (average of $548). Flying from Kansas City to Porto in June is currently the most expensive (average of $1,033). 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.

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 October 28, 2025.
Read reviews from past customers who have flown United Airlines from Kansas City to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,001 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

  • How long is the flight from Kansas City to Porto?

    Departing from Kansas City to Porto will take you 16h 55m. There are 4333 mi between Kansas City and Porto. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Kansas City to Porto round-trip?

    Cheapflights users have booked flights from Kansas City to Porto round-trip from $564. You may be able to fly from Kansas City to Porto for 36% less than the average price by searching for this airline.

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

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

  • How can I find direct flights from Kansas City to Porto?

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

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

    Yes. Cheapflights offers flight deals from Kansas City 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 Kansas City to Porto?

    Currently, November is the cheapest month in which you can book a flight from Kansas City to Porto (average of $548). Flying from Kansas City to Porto in June is currently the most expensive (average of $1,033). 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 Porto?

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

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Alternative routes for Kansas City to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Kansas City to Porto

Discover the top airline that operate flights from Kansas City 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$564Average$1,036FlexibilityNo cancel feeOn-time69%

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