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Portugal

$397+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIS
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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Cheap 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 March 17, 2026.

This United Airlines deal was found by Cheapflights users on 3/15. 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 4/1411:23 am
MCI
-
LIS
2 stops29h 22m
United Airlines
Tue 4/2111:25 am
LIS
-
MCI
2 stops29h 02m
United Airlines
Deal found 3/15$614
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/143:21 pm
MCI
-
LIS
2 stops16h 19m
United Airlines
Thu 4/2311:25 am
LIS
-
MCI
2 stops38h 20m
United Airlines
Deal found 3/12$615
This Delta deal was found by Cheapflights users on 3/16. 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 11/310:10 am
MCI
-
LIS
1 stop15h 50m
Delta
Mon 11/911:25 am
LIS
-
MCI
2 stops18h 33m
Delta
Deal found 3/16$616
This KLM deal was found by Cheapflights users on 3/13. 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 11/44:13 pm
STL
-
LIS
1 stop10h 47m
KLM
Tue 11/105:00 am
LIS
-
STL
2 stops18h 06m
KLM
Deal found 3/13$616
This Delta deal was found by Cheapflights users on 3/12. 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 11/34:13 pm
STL
-
LIS
1 stop10h 47m
Delta
Mon 11/95:00 am
LIS
-
STL
2 stops19h 01m
Delta
Deal found 3/12$617
This United Airlines deal was found by Cheapflights users on 3/14. 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 11/27:55 pm
MCI
-
LIS
2 stops31h 25m
United Airlines
Mon 11/165:00 am
LIS
-
MCI
2 stops17h 24m
United Airlines
Deal found 3/14$618
This United Airlines deal was found by Cheapflights users on 3/14. 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 12/66:00 am
MCI
-
LIS
2 stops20h 10m
United Airlines
Sun 12/135:00 am
LIS
-
MCI
2 stops25h 52m
United Airlines
Deal found 3/14$619
This Delta deal was found by Cheapflights users on 3/16. 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.
Thu 11/52:15 pm
MCI
-
LIS
2 stops18h 55m
Delta
Thu 11/125:00 am
LIS
-
MCI
2 stops18h 32m
Delta
Deal found 3/16$620
This Delta deal was found by Cheapflights users on 3/12. 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 11/45:45 pm
STL
-
LIS
2 stops17h 45m
Delta
Tue 11/105:00 am
LIS
-
STL
2 stops18h 06m
Delta
Deal found 3/12$620
This Delta deal was found by Cheapflights users on 3/14. 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 11/29:59 am
MCI
-
LIS
1 stop17h 01m
Delta
Mon 11/165:30 am
LIS
-
MCI
2 stops19h 39m
Delta
Deal found 3/14$623
This KLM deal was found by Cheapflights users on 3/13. 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 11/59:59 am
MCI
-
LIS
1 stop17h 01m
KLM
Thu 11/1210:00 am
LIS
-
MCI
1 stop15h 09m
KLM
Deal found 3/13$627
This United Airlines deal was found by Cheapflights users on 3/14. 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 11/85:45 pm
MCI
-
LIS
1 stop10h 30m
United Airlines
Fri 11/135:00 am
LIS
-
MCI
2 stops17h 24m
United Airlines
Deal found 3/14$633

Find flight deals from Missouri to Portugal

Keep the following information in mind while searching for Missouri to Portugal flight deals. Data was last updated March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$614
(United Airlines)

One-way from

$397
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$789
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. 22% potential increase in price ($309 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease ($149 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 17, 2026.
Use the filters below to find and compare flights from Missouri to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Tue 4/14

3:21 pm-1:40 pm

2 stops16h 19m

Lisbon Humberto Delgado

Thu 4/23

11:25 am-7:45 pm

2 stops38h 20m

$615

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Wed 4/22

6:15 am-1:40 pm

2 stops25h 25m

Lisbon Humberto Delgado

Wed 4/29

6:45 am-8:41 am

2 stops31h 56m

$622

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Wed 4/8

11:30 am-10:30 am

2 stops17h 00m

Lisbon Humberto Delgado

Fri 4/17

5:05 am-7:45 pm

2 stops20h 40m

$711

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Wed 4/8

12:40 pm-10:30 am

1 stop15h 50m

Lisbon Humberto Delgado

Tue 4/21

12:20 pm-7:48 pm

1 stop13h 28m

$719

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Thu 4/9

8:00 am-11:25 am

2 stops21h 25m

Porto

Thu 4/16

6:20 am-9:59 pm

2 stops21h 39m

$739

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Wed 4/29

6:15 am-11:20 am

2 stops23h 05m

Porto

Wed 5/6

6:00 am-10:29 pm

2 stops22h 29m

$742

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sun 4/19

6:00 am-9:45 am

1 stop21h 45m

Porto

Tue 5/5

6:00 am-10:18 pm

2 stops22h 18m

$756

Kansas CityLisbon

MCI - LIS

MCILIS

Kansas City

Tue 8/18

11:20 am-9:20 am

2 stops16h 00m

Lisbon Humberto Delgado

Tue 8/25

11:25 am-7:17 pm

2 stops37h 52m

$770

Kansas CityPorto

MCI - OPO

MCIOPO

Kansas City

Sat 4/11

6:28 pm-8:35 pm

2 stops44h 07m

Porto

Sat 4/18

10:40 am-9:56 pm

2 stops41h 16m

$819

St. LouisPorto

STL - OPO

STLOPO

Lambert-St Louis

Thu 4/23

9:10 am-3:45 pm

2 stops24h 35m

Porto

Thu 5/7

6:00 am-12:06 pm

2 stops36h 06m

$819

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Missouri to Portugal (average of $469). Flying from Missouri to Portugal in July is currently the most expensive (average of $839). 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.

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?

    United Airlines, British Airways, and Delta can get you from Missouri to Portugal in just under 16h 19m. Your travel time can differ by up to 27h 48m. Missouri and Portugal are separated by a distance of 4398 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $342 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $384 and $391, respectively.

  • 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, February is the cheapest month in which you can book a flight from Missouri to Portugal (average of $469). Flying from Missouri to Portugal in July is currently the most expensive (average of $839). 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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$505Average$1,026FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$508Average$751FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$520Average$1,014FlexibilityNo cancel feeOn-time76%
IberiaCheapest$525Average$713FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$533Average$933FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$553Average$796FlexibilityNo cancel feeOn-time72%
DeltaCheapest$558Average$756FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$578Average$689FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$589Average$821FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$702Average$1,050FlexibilityNo cancel feeOn-time67%

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