Cheap flights from Porto (OPO) to St. Louis (STL)

OPO — STL
May 10 — May 171

Cheap flight deals from Porto to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 5, 2024.

Round-trip from

$322
From Porto to Lambert-St Louis

When is the cheapest time to fly from Porto to St. Louis (OPO - STL)?

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

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

Average price of flights to St. Louis by month

Plan your trip from Porto to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Porto to St. Louis is currently $0 while a round-trip flight costs $0. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from Porto to St. Louis (average of $322). Flying from Porto to St. Louis in July is currently the most expensive (average of $377). 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.

January

$326

February

$331

March

$357

April

$337

May

$345

June

$371

July

$377

August

$336

September

$322

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Related info for your journey

Find useful and relevant information for your journey from Porto 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 does OPO to STL mean?

    OPO stands for Porto Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

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

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

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

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

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

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

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

    Many airlines flying from Porto 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 Porto to St. Louis?

    Yes, you can often find last-minute deals on Porto 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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Alternative routes for Porto to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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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 Porto to St. Louis?

Deals for Porto to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Porto to St. Louis.

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

Yes! Cheapflights helps users easily find flights from Porto to St. Louis with no change fees.

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

Of course! You can now track prices for flights from Porto to St. Louis and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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