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Cheap flights from Portugal to St. Louis (STL) from $355

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 9/23. 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.
LIS — STL
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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What is the cheapest month to fly from Portugal to St. Louis?

The best pricing can be found in the month of October. Prices to St. Louis from Portugal average $929. You can even find prices in October for less than $929, as users have found deals to St. Louis from as low as $526. The month of July appears to be one of the more expensive times to travel to St. Louis from Portugal. Flying in the targeted month can save you up to 23%.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portugal to St. Louis as you normally would.

Cheap United Airlines flights from Portugal to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Portugal and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Thu 6/611:25 amLIS - STL
2 stops28h 43mUnited Airlines
Mon 6/1011:38 amSTL - LIS
2 stops14h 42mUnited Airlines
Deal found 5/29$789
Wed 6/2612:50 pmLIS - STL
2 stops39h 47mUnited Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mUnited Airlines
Deal found 5/29$1,128
Wed 6/2612:50 pmLIS - STL
1 stop32h 31mUnited Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mUnited Airlines
Deal found 5/29$1,140

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

Find cheap flight options from Portugal to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
Thu 6/611:25 amLIS - STL
2 stops28h 43mUnited Airlines
Mon 6/1011:38 amSTL - LIS
2 stops14h 42mUnited Airlines
Deal found 5/29$789
Thu 6/611:05 amLIS - STL
1 stop15h 51mIberia
Mon 6/1012:56 pmSTL - LIS
1 stop14h 09mIberia
Deal found 5/29$822
Wed 6/2611:25 amLIS - STL
2 stops34h 15mAir Canada
Wed 7/310:19 amSTL - LIS
2 stops17h 01mAir Canada
Deal found 5/29$1,109
Wed 6/2611:25 amLIS - STL
2 stops32h 53mMultiple Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mMultiple Airlines
Deal found 5/29$1,116
Wed 6/265:00 amLIS - STL
2 stops21h 37mDelta
Wed 7/310:05 amSTL - LIS
2 stops19h 10mDelta
Deal found 5/29$1,118
Wed 6/2612:50 pmLIS - STL
1 stop32h 31mMultiple Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mMultiple Airlines
Deal found 5/29$1,122
Wed 6/2612:50 pmLIS - STL
2 stops39h 47mUnited Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mUnited Airlines
Deal found 5/29$1,128
Wed 6/2612:50 pmLIS - STL
1 stop32h 31mUnited Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mUnited Airlines
Deal found 5/29$1,140
Wed 6/266:30 amLIS - STL
3 stops40h 58mMultiple Airlines
Wed 7/310:10 amSTL - LIS
2 stops14h 20mMultiple Airlines
Deal found 5/29$1,435

Portugal to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Portugal and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Thu 6/611:25 amLIS - STL
2 stops28h 43mUnited Airlines
Mon 6/1011:38 amSTL - LIS
2 stops14h 42mUnited Airlines
Deal found 5/29$789
Thu 6/611:05 amLIS - STL
1 stop15h 51mIberia
Mon 6/1012:56 pmSTL - LIS
1 stop14h 09mIberia
Deal found 5/29$822
Wed 6/2611:25 amLIS - STL
2 stops34h 15mAir Canada
Wed 7/310:19 amSTL - LIS
2 stops17h 01mAir Canada
Deal found 5/29$1,109
Wed 6/2611:25 amLIS - STL
2 stops32h 53mMultiple Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mMultiple Airlines
Deal found 5/29$1,116
Wed 6/265:00 amLIS - STL
2 stops21h 37mDelta
Wed 7/310:05 amSTL - LIS
2 stops19h 10mDelta
Deal found 5/29$1,118
Wed 6/2612:50 pmLIS - STL
1 stop32h 31mMultiple Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mMultiple Airlines
Deal found 5/29$1,122
Wed 6/2612:50 pmLIS - STL
2 stops39h 47mUnited Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mUnited Airlines
Deal found 5/29$1,128
Wed 6/2612:50 pmLIS - STL
1 stop32h 31mUnited Airlines
Wed 7/38:25 amSTL - LIS
1 stop20h 05mUnited Airlines
Deal found 5/29$1,140
Wed 6/266:30 amLIS - STL
3 stops40h 58mMultiple Airlines
Wed 7/310:10 amSTL - LIS
2 stops14h 20mMultiple Airlines
Deal found 5/29$1,435

Portugal to St. Louis flights leaving soon

Find last-minute flight options from Portugal to St. Louis 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 2,784,634 searches. Data last updated May 30, 2024.
Thu 6/611:25 amLIS - STL
2 stops28h 43mUnited Airlines
Mon 6/1011:38 amSTL - LIS
2 stops14h 42mUnited Airlines
Deal found 5/29$789
Thu 6/611:05 amLIS - STL
1 stop15h 51mIberia
Mon 6/1012:56 pmSTL - LIS
1 stop14h 09mIberia
Deal found 5/29$822

One-way flights to St. Louis from Portugal

Search for one-way flight options from Portugal to St. Louis. 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 2,784,634 searches. Data last updated May 30, 2024.
Mon 9/2310:00 pmLIS - STL
3 stops42h 18mMultiple Airlines
Deal found 5/29$355
Mon 9/2311:40 pmLIS - STL
3 stops40h 38mMultiple Airlines
Deal found 5/29$438
Tue 9/2411:35 amLIS - STL
3 stops40h 39mMultiple Airlines
Deal found 5/29$475
Mon 9/237:05 amLIS - STL
2 stops21h 09mMultiple Airlines
Deal found 5/29$519
Sun 7/79:30 pmLIS - STL
3 stops46h 53mMultiple Airlines
Deal found 5/30$639
Sat 9/216:35 amLIS - STL
2 stops19h 13mMultiple Airlines
Deal found 5/29$670
Sat 9/216:35 amLIS - STL
2 stops19h 13mMultiple Airlines
Deal found 5/29$671
Wed 9/2511:05 amLIS - STL
1 stop15h 48mBritish Airways
Deal found 5/29$672
Fri 9/206:35 amLIS - STL
2 stops19h 13mAmerican Airlines
Deal found 5/29$674

Find flights from Portugal to St. Louis within your budget

Customize your flight search to find flights from Portugal to St. Louis 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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,109 - $1,435

Route

Depart

Return

Price

Lisbon Humberto DelgadoLambert-St Louis

LIS - STL

LISSTL

Lisbon Humberto Delgado

Wed 6/26

2 stops34h 15m

Lambert-St Louis

Wed 7/3

2 stops17h 01m

$1,109

Lisbon Humberto DelgadoLambert-St Louis

LIS - STL

LISSTL

Lisbon Humberto Delgado

Wed 6/26

2 stops32h 53m

Lambert-St Louis

Wed 7/3

1 stop20h 05m

$1,116

Lisbon Humberto DelgadoLambert-St Louis

LIS - STL

LISSTL

Lisbon Humberto Delgado

Wed 6/26

2 stops21h 37m

Lambert-St Louis

Wed 7/3

2 stops19h 10m

$1,118

Lisbon Humberto DelgadoLambert-St Louis

LIS - STL

LISSTL

Lisbon Humberto Delgado

Wed 6/26

1 stop32h 31m

Lambert-St Louis

Wed 7/3

1 stop20h 05m

$1,122

Lisbon Humberto DelgadoLambert-St Louis

LIS - STL

LISSTL

Lisbon Humberto Delgado

Wed 6/26

2 stops39h 47m

Lambert-St Louis

Wed 7/3

1 stop20h 05m

$1,128

Lisbon Humberto DelgadoLambert-St Louis

LIS - STL

LISSTL

Lisbon Humberto Delgado

Wed 6/26

1 stop32h 31m

Lambert-St Louis

Wed 7/3

1 stop20h 05m

$1,140

Lisbon Humberto DelgadoLambert-St Louis

LIS - STL

LISSTL

Lisbon Humberto Delgado

Wed 6/26

3 stops40h 58m

Lambert-St Louis

Wed 7/3

2 stops14h 20m

$1,435

Flights are sorted by cheapest first

Deals found on 5/29

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

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

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

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 30, 2024.
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Finnair
7.8
Good
1,372 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,284 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Iberia
7.1
Good
2,742 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.0

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

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

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Portugal to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

  • Can I find flights from Portugal to St. Louis for under $1,200 on Cheapflights?

    Yes, there are multiple flights from Portugal to St. Louis for under $1,200. The cheapest flight booked recently is on Air Canada for just $1,109, but on average you can expect to pay $1,166.

  • Are there last-minute flights available from Portugal to St. Louis for under $800?

    There are currently 2+ open flights from Portugal to St. Louis within the next 7 days for less than $800.

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

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $672. American Airlines flights start at $674 while deals on Delta start at $961 one-way.

  • What does LIS to STL mean?

    Great question - LIS to STL just means Lisbon Humberto Delgado Airport to Lambert-St Louis Airport. Now you’ll know what these unique codes when you look for flights! 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 Portugal to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Portugal to St. Louis 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 Portugal to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portugal to St. Louis 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 Portugal to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal to St. Louis 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 Portugal to St. Louis that allow pets onboard?

    Many airlines flying from Portugal to St. Louis 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 Portugal to St. Louis?

    Yes, you can often find last-minute deals on Portugal to St. Louis 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 Portugal to St. Louis flight deals updated?

    The Portugal to St. Louis flight deals you see on this page were last updated on 5/29.

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

    Currently, September is the cheapest month in which you can book a flight from Portugal to St. Louis (average of $319). Flying from Portugal to St. Louis in July is currently the most expensive (average of $366). 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 Portugal to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Portugal to St. Louis

Discover the top airline that operate flights from Portugal to St. Louis. 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$694Average$897FlexibilityNo cancel feeOn-time71%
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Search flights from Portugal to St. Louis by cabin class

Find flights from Portugal to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portugal to St. Louis?

When you search for this flight from Portugal to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portugal to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from Portugal by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portugal to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from Portugal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Portugal to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Portugal to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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