$334+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — OPO
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Porto 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
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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 Kansas City to Porto
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Best
Last-minute
One-way
Cheapest flights from Kansas City to PortoExplore 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 September 9, 2026.
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 September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Mon 11/210:58 am -
2 stops14h 42m
Wed 11/188:20 am -
2 stops19h 45m
Deal found 9/8![American Airlines logo]()
$574
This FlightHub deal was found by Cheapflights users on 9/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:17 pm -
2 stops41h 33m
Wed 11/188:20 am -
2 stops16h 31m
Deal found 9/8![British Airways logo]()
$580
This Iberia deal was found by Cheapflights users on 9/8. 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.
Tue 11/108:01 am -
2 stops17h 39m
Wed 11/188:20 am -
2 stops20h 30m
Deal found 9/8![Multiple Airlines logo]()
$581
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 11/22:39 pm -
2 stops25h 21m
Wed 11/185:00 am -
2 stops17h 42m
Deal found 9/8![Delta logo]()
$724
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 11/103:20 pm -
1 stop12h 10m
Wed 11/186:00 am -
2 stops21h 51m
Deal found 9/8![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/25:50 pm -
2 stops33h 40m
Wed 11/1812:35 pm -
1 stop14h 04m
Deal found 9/8![United Airlines logo]()
$727
This Delta deal was found by Cheapflights users on 9/7. 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.
Sun 11/112:00 pm -
1 stop14h 15m
Tue 11/105:00 am -
2 stops19h 50m
Deal found 9/7![Delta logo]()
$728
This Justfly.com deal was found by Cheapflights users on 9/8. 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.
Wed 11/257:41 am -
2 stops27h 09m
Sun 11/298:05 pm -
2 stops34h 28m
Deal found 9/8![British Airways logo]()
$741
Best flights from Kansas City to PortoDiscover carefully curated flight deals from Kansas City to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Kansas City to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/25:50 pm -
2 stops33h 40m
Wed 11/1812:35 pm -
1 stop14h 04m
Deal found 9/8![United Airlines logo]()
$727
This Delta deal was found by Cheapflights users on 9/5. 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 2/28:00 am -
2 stops20h 35m
Tue 3/25:00 am -
2 stops24h 58m
Deal found 9/5![Delta logo]()
$728
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 2/29:43 am -
2 stops20h 02m
Tue 3/212:35 pm -
1 stop13h 55m
Deal found 9/4![United Airlines logo]()
$751
This Delta deal was found by Cheapflights users on 9/8. 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 1/112:00 pm -
1 stop14h 15m
Wed 3/315:00 am -
2 stops18h 15m
Deal found 9/8![Delta logo]()
$774
Last-minute flights from Kansas City to PortoDiscover last-minute flight deals from Kansas City to Porto. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Porto. Data last updated September 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/183:44 pm -
1 stop12h 01m
Thu 9/246:00 am -
2 stops23h 44m
Deal found 9/7![United Airlines logo]()
$1,036
This Expedia deal was found by Cheapflights users on 9/7. 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 9/2311:10 am -
2 stops18h 55m
Mon 10/1212:50 pm -
2 stops39h 10m
Deal found 9/7![Multiple Airlines logo]()
$986
This Expedia deal was found by Cheapflights users on 9/7. 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 10/56:39 pm -
2 stops22h 46m
Mon 10/1212:50 pm -
2 stops39h 10m
Deal found 9/7![Multiple Airlines logo]()
$935
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/76:00 am -
2 stops27h 40m
Fri 10/166:00 am -
2 stops33h 07m
Deal found 9/6![United Airlines logo]()
$947
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/147:30 am -
2 stops21h 50m
Tue 11/176:00 am -
2 stops17h 34m
Deal found 9/7![United Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 10/206:29 am -
1 stop21h 16m
Tue 10/2712:35 pm -
2 stops33h 50m
Deal found 9/4![United Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/216:00 am -
2 stops19h 00m
Wed 10/286:00 am -
2 stops33h 31m
Deal found 9/6![United Airlines logo]()
$806
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 10/226:19 am -
2 stops27h 26m
Thu 10/296:00 am -
2 stops19h 47m
Deal found 9/6![United Airlines logo]()
$872
One-way flights from Kansas City to PortoSearch for one-way flight options from Kansas City to Porto. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Kansas City to Porto. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 3/31:04 pm -
2 stops14h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Sun 11/153:20 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:00 am -
3 stops25h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 9/7. 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 12/17:08 am -
2 stops21h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$534
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 12/16:00 am -
3 stops21h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/34:13 pm -
3 stops21h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$564
Find 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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $574 (American Airlines) |
One-way from | $334 (United Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $986 |
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 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Kansas City to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Wed 3/3
1:04 pm-9:30 am
2 stops14h 26m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$334
Quickest round-trip
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Sun 11/15
3:20 pm-9:30 am
1 stop12h 10m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$463
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Tue 12/1
7:08 am-10:35 am
2 stops21h 27m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$534
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Tue 12/1
6:00 am-9:30 am
3 stops21h 30m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$553
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Wed 3/3
4:13 pm-7:25 pm
3 stops21h 12m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$564
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Mon 11/2
5:50 pm-9:30 am
2 stops33h 40m
Porto
Wed 11/18
12:35 pm-8:39 pm
1 stop14h 04m
$727
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Tue 2/2
8:00 am-10:35 am
2 stops20h 35m
Porto
Tue 3/2
5:00 am-11:58 pm
2 stops24h 58m
$728
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Tue 2/2
9:43 am-11:45 am
2 stops20h 02m
Porto
Tue 3/2
12:35 pm-8:30 pm
1 stop13h 55m
$751
Kansas CityPorto
MCI Kansas City - OPO Porto
MCIOPO
Kansas City
Fri 1/1
12:00 pm-8:15 am
1 stop14h 15m
Porto
Wed 3/31
5:00 am-5:15 pm
2 stops18h 15m
$774
Sorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Kansas City-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-Porto flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
MCI-OPO
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, February is the cheapest month in which you can book a flight from Kansas City to Porto (average of $491). Flying from Kansas City to Porto in December is currently the most expensive (average of $1,661). 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.
How much does it cost to fly round-trip from Kansas City to Porto?
Airfare is below average for this route at the moment.
Kansas City to Porto flights typically cost between $903 and $1,147 in November.The cheapest round-trip price found within the last 5 days was $573 on American Airlines (Nov 2-Nov 18).
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 September 9, 2026.
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.
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Arcos de Valdevez
Coimbra
Aveiro
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Complete your trip to Porto by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Kansas City to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kansas City and Porto flights
Browse other Kansas City and Porto flight options. Last updated on September 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$732 | Average$1,088 | FlexibilityNo cancel fee | On-time69% |