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Cheap flights from St. Louis (STL) to Portugal from $334

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — LIS
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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How far in advance should I book a flight from St. Louis to Portugal?

Users have found that booking a flight from St. Louis to Portugal at least 41 days early can save you up to 170% on average compared to booking a flight this week. If booking 41 days before your flight isn’t an option for you, users have found flights from St. Louis to Portugal for as little as $1,086 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,229 for flights departing within the next 3 days.

What is the cheapest month to fly from St. Louis to Portugal?

Flights from St. Louis to Portugal lean towards being more expensive in May. Prices are generally better when you fly from St. Louis to Portugal in January, with the cheapest ticket starting at $457.

What is the cheapest time of day to fly from STL to PT?

When flying from St. Louis to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap St. Louis to Portugal flights in June & July 2024

Find cheap flight options from St. Louis to Portugal specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Check out some of the best flight deals from St. Louis to Portugal in 2024. More deals are always being added, so be sure to check back regularly.
Wed 7/176:08 amSTL - LIS
1 stop20h 12mMultiple Airlines
Wed 8/2811:25 amLIS - STL
2 stops33h 56mMultiple Airlines
Deal found 6/5$706
Wed 7/1711:05 amSTL - LIS
2 stops14h 40mAmerican Airlines
Wed 8/286:35 amLIS - STL
2 stops22h 49mAmerican Airlines
Deal found 6/5$726
Wed 7/176:08 amSTL - LIS
1 stop20h 12mMultiple Airlines
Wed 8/2811:25 amLIS - STL
1 stop15h 40mMultiple Airlines
Deal found 6/5$751
Sun 7/145:33 pmSTL - LIS
1 stop32h 47mUnited Airlines
Tue 7/3011:25 amLIS - STL
2 stops32h 53mUnited Airlines
Deal found 6/6$810
Sun 7/147:30 amSTL - LIS
2 stops21h 20mDelta
Tue 7/3012:45 pmLIS - STL
2 stops13h 51mDelta
Deal found 6/6$860
Mon 7/221:07 pmSTL - LIS
1 stop13h 58mBritish Airways
Thu 8/86:45 pmLIS - STL
2 stops29h 02mBritish Airways
Deal found 6/5$863
Mon 7/226:00 amSTL - LIS
2 stops20h 00mDelta
Thu 8/85:40 amLIS - STL
2 stops23h 59mDelta
Deal found 6/6$881
Mon 7/223:49 pmSTL - LIS
2 stops17h 01mAir France
Thu 8/86:50 pmLIS - STL
2 stops31h 46mAir France
Deal found 6/5$893
Sun 6/236:08 amSTL - LIS
1 stop20h 57mAmerican Airlines
Wed 7/36:35 amLIS - STL
2 stops16h 43mAmerican Airlines
Deal found 6/6$919

St. Louis to Portugal 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Portugal in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Check out some of the best flight deals from St. Louis to Portugal in 2024. More deals are always being added, so be sure to check back regularly.
Tue 11/1910:40 amSTL - LIS
2 stops16h 40mMultiple Airlines
Tue 11/2611:00 amLIS - STL
2 stops29h 12mMultiple Airlines
Deal found 6/4$509
Mon 12/28:25 amSTL - LIS
2 stops17h 45mUnited Airlines
Thu 12/1211:00 amLIS - STL
2 stops30h 09mUnited Airlines
Deal found 6/6$512
Tue 11/197:00 amSTL - LIS
1 stop19h 10mMultiple Airlines
Tue 11/2611:00 amLIS - STL
2 stops34h 23mMultiple Airlines
Deal found 6/4$525
Mon 12/24:10 pmSTL - LIS
1 stop11h 10mAir Canada
Thu 12/1211:00 amLIS - STL
2 stops28h 53mAir Canada
Deal found 6/5$527
Mon 12/26:45 amSTL - LIS
1 stop20h 20mAmerican Airlines
Thu 12/128:45 amLIS - STL
1 stop17h 21mAmerican Airlines
Deal found 6/5$530
Wed 11/610:40 amSTL - LIS
1 stop16h 40mMultiple Airlines
Sun 11/105:00 amLIS - STL
1 stop14h 55mMultiple Airlines
Deal found 6/6$611
Wed 11/611:51 amSTL - LIS
2 stops16h 44mDelta
Sun 11/105:00 amLIS - STL
2 stops22h 16mDelta
Deal found 6/6$622
Wed 11/63:55 pmSTL - LIS
2 stops15h 25mLufthansa
Sun 11/105:00 amLIS - STL
1 stop14h 55mLufthansa
Deal found 6/6$685
Wed 8/216:02 amSTL - LIS
2 stops21h 18mUnited Airlines
Wed 9/411:25 amLIS - STL
2 stops30h 57mUnited Airlines
Deal found 6/5$689

St. Louis to Portugal flights leaving soon

Find last-minute flight options from St. Louis to Portugal for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Book one of these great deals on flights from St. Louis to Portugal. Users should examine the flight details to ensure there are no surprises.
Sun 6/165:27 amSTL - LIS
2 stops21h 38mAmerican Airlines
Sat 6/2210:15 pmLIS - STL
2 stops42h 17mAmerican Airlines
Deal found 6/5$1,326
Fri 6/145:31 pmSTL - LIS
2 stops23h 59mLufthansa
Sun 6/235:05 amLIS - STL
1 stop14h 25mLufthansa
Deal found 6/6$1,336
Fri 6/145:31 pmSTL - LIS
2 stops23h 59mLufthansa
Sun 6/235:05 amLIS - STL
2 stops16h 36mLufthansa
Deal found 6/5$1,341
Fri 6/145:31 pmSTL - LIS
2 stops23h 59mLufthansa
Sun 6/235:05 amLIS - STL
2 stops16h 36mLufthansa
Deal found 6/6$1,346
Fri 6/145:31 pmSTL - LIS
2 stops23h 59mLufthansa
Sun 6/235:05 amLIS - STL
1 stop14h 25mLufthansa
Deal found 6/5$1,493
Sun 6/1611:38 amSTL - LIS
2 stops21h 52mLufthansa
Sat 6/227:30 amLIS - STL
1 stop36h 00mLufthansa
Deal found 6/5$1,712
Fri 6/1410:50 amSTL - LIS
1 stop15h 30mLufthansa
Sun 6/235:05 amLIS - STL
1 stop14h 25mLufthansa
Deal found 6/6$1,729
Sun 6/1612:56 pmSTL - LIS
1 stop14h 09mAmerican Airlines
Sat 6/2210:15 pmLIS - STL
2 stops42h 17mAmerican Airlines
Deal found 6/4$1,730
Fri 6/1412:50 pmSTL - LIS
1 stop15h 40mUnited Airlines
Sun 6/235:05 amLIS - STL
1 stop14h 25mUnited Airlines
Deal found 6/5$1,751

One-way flights to Portugal from St. Louis

Search for one-way flight options from St. Louis to Portugal. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to Portugal. Users can also find round-trip St. Louis to Portugal flights by using the search form above.
Mon 8/1212:15 pmSTL - LIS
2 stops13h 45mMultiple Airlines
Deal found 6/6$334
Wed 11/276:42 pmSTL - OPO
2 stops44h 18mMultiple Airlines
Deal found 6/5$367
Mon 8/127:51 pmSTL - LIS
3 stops43h 44mMultiple Airlines
Deal found 6/6$453
Sun 11/36:24 pmSTL - LIS
2 stops31h 21mMultiple Airlines
Deal found 6/6$455
Wed 11/273:45 pmSTL - OPO
1 stop17h 40mUnited Airlines
Deal found 6/5$470
Wed 11/2711:51 amSTL - OPO
2 stops16h 59mAir France
Deal found 6/5$471
Sun 11/38:25 amSTL - LIS
1 stop20h 05mUnited Airlines
Deal found 6/6$482
Wed 7/2410:32 pmSTL - OPO
2 stops42h 38mMultiple Airlines
Deal found 6/6$498
Tue 7/2311:25 amSTL - OPO
2 stops16h 20mUnited Airlines
Deal found 6/6$529

Find flights from St. Louis to Portugal within your budget

Customize your flight search to find flights from St. Louis 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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$509 - $1,039

Route

Depart

Return

Price

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Tue 11/19

2 stops16h 40m

Lisbon Humberto Delgado

Tue 11/26

2 stops29h 12m

$509

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Mon 12/2

2 stops17h 45m

Lisbon Humberto Delgado

Thu 12/12

2 stops30h 09m

$512

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Mon 12/2

1 stop11h 10m

Lisbon Humberto Delgado

Thu 12/12

2 stops28h 53m

$527

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Mon 12/2

1 stop20h 20m

Lisbon Humberto Delgado

Thu 12/12

1 stop17h 21m

$530

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Sun 10/6

2 stops20h 00m

Lisbon Humberto Delgado

Thu 10/17

2 stops21h 51m

$725

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Tue 8/13

1 stop14h 10m

Lisbon Humberto Delgado

Wed 8/21

2 stops26h 47m

$758

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Fri 10/11

2 stops35h 40m

Lisbon Humberto Delgado

Mon 10/21

2 stops35h 17m

$855

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Sun 10/13

2 stops24h 00m

Lisbon Humberto Delgado

Sun 10/27

2 stops45h 01m

$909

Lambert-St LouisLisbon Humberto Delgado

STL - LIS

STLLIS

Lambert-St Louis

Tue 6/18

2 stops35h 54m

Lisbon Humberto Delgado

Wed 6/26

1 stop14h 25m

$1,039

Flights are sorted by cheapest first

Deals found on 6/4

No data available for this route at this time. Please check back soon.

Best time to book a flight from St. Louis to Portugal

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

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated June 6, 2024.
To help decide which airline to fly from St. Louis to Portugal, see what other customers have to say about Delta, Lufthansa and Air Canada. 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
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.5
Good
1,720 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,227 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Aer Lingus
7.2
Good
1,287 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Food

7.4

Crew

8.6

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Portugal. 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 from for flights from St. Louis to Portugal?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Portugal.

  • Can I find flights from St. Louis to Portugal for under $600 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Portugal for under $600. The cheapest flight booked recently is on Multiple Airlines for just $509, but on average you can expect to pay $671.

  • Are there last-minute flights available from St. Louis to Portugal for under $1,400?

    There are currently 10+ open flights from St. Louis to Portugal within the next 7 days for less than $1,400.

  • What are the cheapest airlines to fly from St. Louis to Portugal one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $470. Users have also found prices from $471 and $774 on Air France and Air Canada, respectively.

  • What are the most popular routes from St. Louis to Portugal?

    When deciding which route to take from St. Louis to Portugal consider Lambert-St Louis - Lisbon Humberto Delgado, Lambert-St Louis - Porto or Lambert-St Louis - Lajes as they are the most popular.

  • What does STL to LIS mean?

    Lambert-St Louis Airport is STL and Lisbon Humberto Delgado Airport is LIS. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Porto Airport (OPO), Faro Airport (FAO), Funchal Madeira Airport (FNC), Ponta Delgada Nordela Airport (PDL), Lajes Airport (TER) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from St. Louis to Portugal that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Portugal flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Portugal with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Portugal flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Portugal that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Portugal?

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

  • Can I find deals for business class flights from St. Louis to Portugal?

    Yes. Cheapflights offers flight deals from St. Louis 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.

  • Can I find deals for flights from St. Louis to Portugal that allow pets onboard?

    Many airlines flying from St. Louis to Portugal offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Portugal?

    Yes, you can often find last-minute deals on St. Louis to Portugal flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Portugal flight deals updated?

    The St. Louis to Portugal flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from St. Louis to Portugal?

    When booking a flight from St. Louis to Portugal, you may want to consider flying on American Airlines, Air Canada or British Airways as they are the most popular for this route.

  • What is the cheapest month to book a flight from St. Louis to Portugal?

    Currently, December is the cheapest month in which you can book a flight from St. Louis to Portugal (average of $595). Flying from St. Louis to Portugal in June is currently the most expensive (average of $1,194). 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 St. Louis to Portugal
See prices for flight routes from nearby airports that may be better suited for you.

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Top 8 airlines flying from St. Louis to Portugal

Discover the top 8 airlines that operate flights from St. Louis 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$537Average$1,040FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$554Average$892FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$557Average$971FlexibilityNo cancel feeOn-time69%
DeltaCheapest$603Average$1,007FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$615Average$983FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$624Average$1,075FlexibilityNo cancel feeOn-time71%
KLMCheapest$666Average$876FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$849Average$1,282FlexibilityNo cancel feeOn-time67%
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