Cheap flights from Portugal to St. Louis (STL) from $381

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
May 22 — May 291

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%.

When is the cheapest time to fly from Portugal to St. Louis (PT - 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.

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 2,637,452 searches. Data last updated May 17, 2024.
Mon 9/2310:40 pmLIS - STL
3 stops41h 38mMultiple Airlines
Deal found 5/14$381
Mon 9/2310:40 pmLIS - STL
3 stops41h 38mMultiple Airlines
Deal found 5/16$386
Sun 7/79:30 pmLIS - STL
3 stops46h 53mMultiple Airlines
Deal found 5/16$580
Mon 9/235:45 pmLIS - STL
1 stop27h 35mMultiple Airlines
Deal found 5/14$606
Sat 9/216:35 amLIS - STL
2 stops19h 23mMultiple Airlines
Deal found 5/14$663
Thu 11/78:45 amLIS - STL
1 stop17h 28mBritish Airways
Deal found 5/16$664
Fri 9/206:35 amLIS - STL
2 stops21h 00mAmerican Airlines
Deal found 5/14$667
Mon 9/236:35 amLIS - STL
2 stops19h 23mAmerican Airlines
Deal found 5/16$669
Wed 9/257:20 amLIS - STL
2 stops18h 51mBritish Airways
Deal found 5/14$670

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

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 17, 2024.
7.9
Good
1,568 reviews

Boarding

7.8

Comfort

7.6

Overall

7.9

Crew

8.4

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.9
Good
1,568 reviews
7.9
Good
1,568 reviews

Boarding

7.8

Comfort

7.6

Overall

7.9

Crew

8.4

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.8
Good
1,376 reviews
7.9
Good
1,568 reviews

Boarding

7.8

Comfort

7.6

Overall

7.9

Crew

8.4

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.3
Good
14,514 reviews
7.9
Good
1,568 reviews

Boarding

7.8

Comfort

7.6

Overall

7.9

Crew

8.4

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.0
Good
7,659 reviews
7.9
Good
1,568 reviews

Boarding

7.8

Comfort

7.6

Overall

7.9

Crew

8.4

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

6.8
Okay
6,829 reviews
7.9
Good
1,568 reviews

Boarding

7.8

Comfort

7.6

Overall

7.9

Crew

8.4

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

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.

  • 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 $664. American Airlines flights start at $667 while deals on KLM 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.

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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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