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Cheap flight deals from Porto to St. Louis Starting at AED 1,754

Whether you’re going for a one-way or round-trip to St. Louis, we’ve got you covered! Check out these different flight options from Porto below.

  • One way
  • Round-trip
      • OPO14:10
        24h 25m
        1 stop
        STL09:35
        Tue, Mar 18|Porto - St. Louis|Azores Airlines
        AED 1,754AED 6,816
        74% OFF
        74% OFF
        AED 6,816AED 1,754

        Choose Azores Airlines flights from Porto to St. Louis. The one-way connecting flight with Azores Airlines departs from Francisco Sa Carneiro International Airport on Tue, Mar 18, arriving at St. Louis Lambert International Airport. One-way Prices start from AED 1,754 including taxes and charges.

      • OPO12:30
        31h 25m
        1 stop
        STL14:55
        Tue, Mar 18|Porto - St. Louis|Lufthansa
        AED 3,342AED 6,816
        51% OFF
        51% OFF
        AED 6,816AED 3,342

        Choose Lufthansa flights from Porto to St. Louis. The one-way connecting flight with Lufthansa departs from Francisco Sa Carneiro International Airport on Tue, Mar 18, arriving at St. Louis Lambert International Airport. One-way Prices start from AED 3,342 including taxes and charges.

      • OPO06:00
        13h 55m
        1 stop
        STL14:55
        Sun, Mar 16|Porto - St. Louis|Lufthansa
        AED 3,472AED 6,816
        49% OFF
        49% OFF
        AED 6,816AED 3,472

        Choose Lufthansa flights from Porto to St. Louis. The one-way connecting flight with Lufthansa departs from Francisco Sa Carneiro International Airport on Sun, Mar 16, arriving at St. Louis Lambert International Airport. One-way Prices start from AED 3,472 including taxes and charges.

      • OPO16:20
        27h 35m
        1 stop
        STL13:55
        Thu, Mar 6|Porto - St. Louis|Lufthansa
        AED 3,631
        AED 3,631

        Choose Lufthansa flights from Porto to St. Louis. The one-way connecting flight with Lufthansa departs from Francisco Sa Carneiro International Airport on Thu, Mar 6, arriving at St. Louis Lambert International Airport. One-way Prices start from AED 3,631 including taxes and charges.

      • OPO12:35
        17h 11m
        1 stop
        STL23:46
        Sun, May 11|Porto - St. Louis|Brussels Airlines
        AED 5,248
        AED 5,248

        Choose Brussels Airlines flights from Porto to St. Louis. The one-way connecting flight with Brussels Airlines departs from Francisco Sa Carneiro International Airport on Sun, May 11, arriving at St. Louis Lambert International Airport. One-way Prices start from AED 5,248 including taxes and charges.

      • OPO01:00 pm
        3h 5m
        Nonstop
        STL02:00 pm
        Sat, Feb 22|Porto - St. Louis|Azores Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Porto to St. Louis flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA9004

    United Airlines

    06:00

    OPO

    2.7h

    09:40

    FRA

    -MTWTFS
    Search

  2. UA906

    United Airlines

    12:40

    FRA

    9.1h

    14:45

    ORD

    SMTWTFS

  3. UA4416

    United Airlines

    18:10

    ORD

    1.4h

    19:35

    STL

    SMTWTFS

  4. TP1328

    TAP Air Portugal

    06:00

    OPO

    2.3h

    08:20

    LGW

    S-TWTFS
    Search

  5. AA735

    American Airlines

    15:00

    LHR

    8.8h

    18:50

    CLT

    SMTWTFS

  6. AA1007

    American Airlines

    20:30

    CLT

    1.9h

    21:27

    STL

    SMTWTFS

  7. UA9004

    United Airlines

    06:00

    OPO

    2.7h

    09:40

    FRA

    -MTWTFS
    Search

  8. UA9066

    United Airlines

    10:40

    FRA

    9.8h

    13:30

    STL

    --T-T-S

  9. LH1181

    Lufthansa

    06:00

    OPO

    2.8h

    09:45

    FRA

    -MTWTFS
    Search

  10. UA9066

    United Airlines

    10:40

    FRA

    9.8h

    13:30

    STL

    --T-T-S

  11. BA7113

    British Airways

    08:15

    OPO

    1.3h

    10:35

    MAD

    SMTWTFS
    Search

  12. BA4271

    British Airways

    11:35

    MAD

    9.7h

    14:15

    ORD

    SMTWTFS

  13. BA5337

    British Airways

    22:20

    ORD

    1.3h

    23:40

    STL

    SMTWT-S

  14. IB544

    Iberia

    08:15

    OPO

    1.3h

    10:35

    MAD

    SMTWTFS
    Search

  15. IB341

    Iberia

    11:35

    MAD

    9.7h

    14:15

    ORD

    SMTWTFS

  16. IB4564

    Iberia

    17:10

    ORD

    1.4h

    18:31

    STL

    SMTWTFS

  17. BA7113

    British Airways

    08:15

    OPO

    1.3h

    10:35

    MAD

    SMTWTFS
    Search

  18. BA1606

    British Airways

    13:45

    MAD

    8.0h

    15:45

    PHL

    SMTWTFS

  19. BA5444

    British Airways

    19:35

    PHL

    2.7h

    21:16

    STL

    SMTWTFS

  20. TS765

    Air Transat

    08:50

    OPO

    8.3h

    12:05

    YYZ

    ------S
    Search

  21. UA2364

    United Airlines

    15:00

    YYZ

    1.9h

    15:55

    ORD

    SMTWTFS

  22. UA4185

    United Airlines

    20:20

    ORD

    1.5h

    21:48

    STL

    SMTWTFS

  23. TS765

    Air Transat

    08:50

    OPO

    8.3h

    12:05

    YYZ

    ------S
    Search

  24. UA3542

    United Airlines

    17:30

    YYZ

    2.1h

    18:39

    ORD

    SMTWT-S

  25. UA4185

    United Airlines

    20:20

    ORD

    1.5h

    21:48

    STL

    SMTWTFS

  26. KL2520

    KLM

    09:05

    OPO

    2.8h

    12:50

    AMS

    ----T--
    Search

  27. KL6120

    KLM

    13:00

    AMS

    8.7h

    15:40

    DTW

    SMTWTFS

  28. KL7545

    KLM

    20:20

    DTW

    1.8h

    21:09

    STL

    SMTWTFS
Find more flights and airlines

When is the cheapest time to fly from Porto to St. Louis?

These price trend charts carefully monitor and predict how flight prices from Porto to St. Louis will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Porto (OPO) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Porto to St. Louis based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Porto (OPO) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around AED 4,090.

  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20 km, by taxi about 40 minutes.

  • How many airports are there in St. Louis (STL)?

    There are 1 airport(s) near St. Louis (STL): St. Louis Lambert International Airport.

How to find a cheap flight from Porto to St. Louis

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Porto to St. Louis

Cheapest direct flight priceAED 1,754
Off-season for travelJanuary
Peak season for travelApril
Flight distance6,685.08 km
Popular airlineBritish Airways

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