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Cheap Flight Deals from St. Louis to Oulu

For as little as AU$ 1,664, you can take your next adventure to Oulu without breaking the bank. Choose between one-way and return tickets from St. Louis below.

  • Return
      • STL11:25
        18h 15m
        2 stops
        OUL13:40
        Thu, Feb 27|St. Louis - Oulu|Finnair
        OUL14:20
        37h 9m
        2 stops
        STL19:29
        Thu, Mar 6|Oulu - St. Louis|Finnair
        AU$ 1,664AU$ 2,804
        41% OFF
        41% OFF
        AU$ 2,804AU$ 1,664

        Choose Finnair flights from St. Louis to Oulu. The one-way connecting flight with Finnair departs from St.Louis Lambert International Airport on Thu, Feb 27-Thu, Mar 6, arriving at Oulu Airport. One-way Prices start from AU$ 1,664 including taxes and charges.

      • STL07:29
        25h 26m
        2 stops
        OUL16:55
        Thu, Feb 27|St. Louis - Oulu|American Airlines
        OUL05:35
        26h 11m
        2 stops
        STL23:46
        Thu, Mar 6|Oulu - St. Louis|Finnair
        AU$ 1,711AU$ 2,804
        39% OFF
        39% OFF
        AU$ 2,804AU$ 1,711

        Choose American Airlines flights from St. Louis to Oulu. The one-way connecting flight with American Airlines departs from St.Louis Lambert International Airport on Thu, Feb 27-Thu, Mar 6, arriving at Oulu Airport. One-way Prices start from AU$ 1,711 including taxes and charges.

      • STL11:25
        29h 40m
        2 stops
        OUL01:05
        Thu, Feb 27|St. Louis - Oulu|British Airways
        OUL14:20
        37h 9m
        2 stops
        STL19:29
        Thu, Mar 6|Oulu - St. Louis|Finnair
        AU$ 1,756AU$ 2,804
        37% OFF
        37% OFF
        AU$ 2,804AU$ 1,756

        Choose British Airways flights from St. Louis to Oulu. The one-way connecting flight with British Airways departs from St.Louis Lambert International Airport on Thu, Feb 27-Thu, Mar 6, arriving at Oulu Airport. One-way Prices start from AU$ 1,756 including taxes and charges.

      • STL09:24
        23h 31m
        2 stops
        OUL16:55
        Sat, Mar 8|St. Louis - Oulu|American Airlines
        OUL20:35
        49h 13m
        2 stops
        STL14:48
        Sat, Mar 15|Oulu - St. Louis|Finnair
        AU$ 1,896
        AU$ 1,896

        Choose American Airlines flights from St. Louis to Oulu. The one-way connecting flight with American Airlines departs from St.Louis Lambert International Airport on Sat, Mar 8-Sat, Mar 15, arriving at Oulu Airport. One-way Prices start from AU$ 1,896 including taxes and charges.

      • STL11:39
        25h 51m
        2 stops
        OUL21:30
        Sat, Mar 8|St. Louis - Oulu|Finnair
        OUL11:10
        39h 44m
        2 stops
        STL19:54
        Sat, Mar 15|Oulu - St. Louis|Finnair
        AU$ 1,896
        AU$ 1,896

        Choose Finnair flights from St. Louis to Oulu. The one-way connecting flight with Finnair departs from St.Louis Lambert International Airport on Sat, Mar 8-Sat, Mar 15, arriving at Oulu Airport. One-way Prices start from AU$ 1,896 including taxes and charges.

      • STL11:39
        29h 26m
        2 stops
        OUL01:05
        Sat, Mar 8|St. Louis - Oulu|British Airways
        OUL05:35
        24h 9m
        2 stops
        STL22:44
        Sat, Mar 15|Oulu - St. Louis|British Airways
        AU$ 2,327
        AU$ 2,327

        Choose British Airways flights from St. Louis to Oulu. The one-way connecting flight with British Airways departs from St.Louis Lambert International Airport on Sat, Mar 8-Sat, Mar 15, arriving at Oulu Airport. One-way Prices start from AU$ 2,327 including taxes and charges.

      • STL01:00 pm
        3h 5m
        Nonstop
        OUL02:00 pm
        Thu, Feb 20|St. Louis - Oulu|Finnair
        Find More Flights
        Find More Flights

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

St. Louis to Oulu Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA4404

    American Airlines

    07:29

    STL

    2.4h

    10:53

    LGA

    SMTWT--
    Search

  2. AY016

    Finnair

    22:55

    JFK

    8.1h

    14:00

    HEL

    SMTWTFS

  3. AY441

    Finnair

    15:55

    HEL

    1.0h

    16:55

    OUL

    SMTWT-S

  4. AA2480

    American Airlines

    09:29

    STL

    2.1h

    11:33

    DFW

    SMTWTFS
    Search

  5. AY020

    Finnair

    16:50

    DFW

    9.9h

    10:45

    HEL

    SM-WTFS

  6. AY441

    Finnair

    15:55

    HEL

    1.0h

    16:55

    OUL

    SMTWT-S

  7. AY5718

    Finnair

    10:36

    STL

    1.9h

    12:30

    DFW

    SM-WTFS
    Search

  8. AY020

    Finnair

    16:50

    DFW

    9.9h

    10:45

    HEL

    SM-WTFS

  9. AY445

    Finnair

    20:10

    HEL

    1.3h

    21:30

    OUL

    SMTWTFS

  10. AY5718

    Finnair

    10:36

    STL

    1.9h

    12:30

    DFW

    SM-WTFS
    Search

  11. AY020

    Finnair

    16:50

    DFW

    9.9h

    10:45

    HEL

    SM-WTFS

  12. AY437

    Finnair

    12:35

    HEL

    1.0h

    13:35

    OUL

    SMTWTFS

  13. BA5684

    British Airways

    11:38

    STL

    2.0h

    13:40

    DFW

    SMTWTFS
    Search

  14. BA6054

    British Airways

    16:50

    DFW

    9.9h

    10:45

    HEL

    SM-WTFS

  15. BA6042

    British Airways

    23:55

    HEL

    1.1h

    01:00

    OUL

    SMTWTFS
Find more flights and airlines

Best Time to Book Flights from St. Louis to Oulu

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Oulu from St. Louis have changed and are set to move below.

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

FAQ

  • When are flight from St. Louis (STL) to Oulu (OUL) the cheapest?

    Airlines adjust prices for flights from St. Louis to Oulu 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 are flights from St. Louis (STL) to Oulu (OUL) cost?

    According to Trip.com's data, the lowest price is around AU$ 3,042.

  • What is the transportation method from the main airport to downtown in Oulu?

    • The distance from Oulu Airport to downtown is about 10km, by taxi about 30 minutes.

  • How many airports in Oulu (OUL)?

    There are 1 airport(s) in Oulu (OUL): Oulu Airport.

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

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 Information from St. Louis to Oulu

Off-season for travelApril
Peak season for travelJanuary
Flight distance7,227.92km
Popular airlineAmerican Airlines

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