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Portugal

$261+ Cheap flights from Missouri to Portugal

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIS
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from Missouri to Portugal

Cheapest flights from Missouri to Portugal
Explore the most affordable flight options available from Missouri to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This KLM deal was found by Cheapflights users on 11/2. 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 12/22:49 pmMCI - LIS
1 stop11h 11mMultiple Airlines
Tue 12/99:30 amLIS - MCI
2 stops17h 43mMultiple Airlines
Deal found 11/2$496
This KLM deal was found by Cheapflights users on 11/2. 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 12/210:24 amMCI - LIS
2 stops15h 36mKLM
Tue 12/911:25 amLIS - MCI
2 stops18h 22mKLM
Deal found 11/2$501
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:32 pmSTL - LIS
1 stop10h 08mDelta
Sun 12/75:30 amLIS - STL
2 stops24h 12mDelta
Deal found 10/30$502
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Tue 12/26:00 amMCI - LIS
1 stop21h 05mAmerican Airlines
Tue 12/98:20 amLIS - MCI
2 stops19h 09mAmerican Airlines
Deal found 11/2$504
This Finnair deal was found by Cheapflights users on 10/31. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/305:06 pmSTL - LIS
1 stop9h 59mMultiple Airlines
Sun 12/711:05 amLIS - STL
1 stop15h 16mMultiple Airlines
Deal found 10/31$506
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Sun 11/306:00 amSTL - LIS
1 stop21h 05mAmerican Airlines
Sun 12/77:45 amLIS - STL
2 stops17h 20mAmerican Airlines
Deal found 10/31$509
This Air Canada deal was found by Cheapflights users on 10/31. 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.
Tue 11/1810:00 amSTL - LIS
2 stops17h 20mMultiple Airlines
Wed 2/46:10 amLIS - STL
2 stops39h 19mMultiple Airlines
Deal found 10/31$539
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 12/312:55 pmSTL - LIS
1 stop15h 20mUnited Airlines
Sun 12/711:55 amLIS - STL
1 stop28h 12mUnited Airlines
Deal found 10/30$556
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/255:30 pmMCI - LIS
1 stop10h 45mUnited Airlines
Wed 12/35:00 amLIS - MCI
2 stops22h 58mUnited Airlines
Deal found 11/2$565
This Finnair deal was found by Cheapflights users on 11/2. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:37 pmMCI - LIS
1 stop14h 28mMultiple Airlines
Wed 12/311:05 amLIS - MCI
1 stop16h 46mMultiple Airlines
Deal found 11/2$579
This Finnair deal was found by Cheapflights users on 10/31. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:56 amSTL - LIS
1 stop16h 09mMultiple Airlines
Mon 12/2211:05 amLIS - STL
1 stop15h 46mMultiple Airlines
Deal found 10/31$636
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:45 pmMCI - OPO
2 stops16h 55mLufthansa
Wed 12/36:00 amOPO - MCI
2 stops17h 25mLufthansa
Deal found 11/2$685

Cheap flight deals from Missouri to Portugal

Keep the following information in mind while searching for Missouri to Portugal flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$492
(KLM)

One-way from

$261
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$624
Provider with most accurate pricing for Lambert-St Louis-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Lisbon Humberto Delgado flights.
Search Deals
From Missouri to Portugal
Search Deals
One-way flight from Missouri to Portugal
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Portugal 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 3, 2025.
Use the filters below to find and compare flights from Missouri to Portugal that are best for you.

Fly from

Missouri

Fly to

Portugal

Route

Depart

Return

Price

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

Sat 2/14

11:55 am-10:30 am

2 stops16h 35m

Porto

Sat 2/21

6:00 am-8:45 pm

2 stops20h 45m

$492

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Sun 2/8

9:57 am-8:00 am

1 stop16h 03m

Lisbon Humberto Delgado

Fri 2/20

5:00 am-8:02 pm

2 stops21h 02m

$496

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Sat 2/7

9:57 am-8:00 am

1 stop16h 03m

Lisbon Humberto Delgado

Thu 2/19

5:00 am-5:00 pm

2 stops18h 00m

$496

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Wed 2/4

9:57 am-8:00 am

1 stop16h 03m

Lisbon Humberto Delgado

Thu 2/12

5:00 am-10:00 pm

2 stops23h 00m

$496

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Mon 2/9

2:12 pm-3:10 pm

2 stops18h 58m

Lisbon Humberto Delgado

Sat 2/21

5:00 am-9:00 pm

2 stops22h 00m

$500

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Sat 2/7

1:22 pm-3:10 pm

2 stops19h 48m

Lisbon Humberto Delgado

Thu 2/19

5:00 am-8:02 pm

2 stops21h 02m

$500

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Tue 12/2

10:24 am-8:00 am

2 stops15h 36m

Lisbon Humberto Delgado

Tue 12/9

11:25 am-11:47 pm

2 stops18h 22m

$501

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Wed 12/3

4:32 pm-8:40 am

1 stop10h 08m

Lisbon Humberto Delgado

Sun 12/7

5:30 am-11:42 pm

2 stops24h 12m

$502

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Sun 2/8

4:52 pm-9:05 am

1 stop10h 13m

Lisbon Humberto Delgado

Fri 2/20

11:05 am-9:36 pm

1 stop16h 31m

$506

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Tue 12/2

6:00 am-9:05 am

1 stop21h 05m

Lisbon Humberto Delgado

Tue 12/9

11:05 am-9:25 pm

1 stop16h 20m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 51 results
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Best time to book a flight from Missouri to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Portugal

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

Currently, November is the cheapest month in which you can book a flight from Missouri to Portugal (average of $529). Flying from Missouri to Portugal in June is currently the most expensive (average of $966). 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 PT?

Find hourly flight availability from Missouri to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Missouri to Portugal in the evening. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Portugal. 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 Missouri to Portugal?

    KLM, Delta, and United Airlines can get you from Missouri to Portugal in just under 15h 20m. Your travel time can differ by up to 1h 15m. Missouri and Portugal are separated by a distance of 4154 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Missouri to Portugal (average of $529). Flying from Missouri to Portugal in June is currently the most expensive (average of $966). 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

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Alternative routes for Missouri to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Missouri to Portugal

Discover the top 10 airlines that operate flights from Missouri to Portugal. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$525Average$905FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$549Average$1,077FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$553Average$890FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$564Average$1,030FlexibilityNo cancel feeOn-time69%
KLMCheapest$578Average$859FlexibilityNo cancel feeOn-time75%
DeltaCheapest$579Average$906FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$614Average$1,165FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$638Average$857FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$642Average$793FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$823Average$1,106FlexibilityNo cancel feeOn-time67%

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