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St. Louis

$620+ Cheap flights from Oslo Gardermoen (OSL) to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — STL
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheap flight deals from Oslo Gardermoen to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Oslo Gardermoen (OSL) 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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

October

Average price

$501
Provider with most accurate pricing for Oslo Gardermoen-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oslo Gardermoen-Lambert-St Louis flights.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Oslo Gardermoen to St. Louis

Cheapest flights from Oslo Gardermoen to St. Louis
Explore the most affordable flight options available from Oslo Gardermoen to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/511:35 amOSL - STL
2 stops29h 23mUnited Airlines
Sat 8/305:30 pmSTL - OSL
2 stops21h 40mUnited Airlines
Deal found 4/3$620
This Lufthansa deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/56:45 pmOSL - STL
1 stop25h 45mLufthansa
Sat 8/305:30 pmSTL - OSL
2 stops17h 30mLufthansa
Deal found 4/3$745
This Air Canada deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/59:50 amOSL - STL
3 stops18h 58mMultiple Airlines
Sun 11/304:15 pmSTL - OSL
2 stops19h 00mMultiple Airlines
Deal found 4/3$784
This Air Canada deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/59:50 amOSL - STL
3 stops18h 58mAir Canada
Sat 8/304:00 pmSTL - OSL
2 stops19h 05mAir Canada
Deal found 4/3$997

Cheapflights Fare Finder

Customize your flight search to find flights from Oslo Gardermoen 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 2,558,603 searches. Data last updated April 4, 2025.
Use the filters below to find and compare flights from Oslo Gardermoen Airport to St. Louis that are best for you.

Fly from

Oslo Gardermoen

Fly to

St. Louis

Route

Depart

Return

Price

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Sun 7/27

6:55 pm-9:05 pm

2 stops33h 10m

$692

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Sun 7/27

8:35 am-11:49 pm

2 stops22h 14m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Compare providers for flights from Oslo Gardermoen to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Oslo Gardermoen to St. Louis in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Oslo Gardermoen Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oslo Gardermoen Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oslo Gardermoen Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oslo Gardermoen Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Oslo Gardermoen Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Oslo Gardermoen to St. Louis

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

Cheapflights Insights

Everything you need to know about your flight from Oslo Gardermoen Airport to St. Louis

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 April 4, 2025.
Finnair
7.6
Good
1,267 reviews

Entertainment

6.9

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Finnair
7.6
Good
1,267 reviews
Finnair
7.6
Good
1,267 reviews

Entertainment

6.9

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Lufthansa
6.7
Okay
6,972 reviews
Finnair
7.6
Good
1,267 reviews

Entertainment

6.9

Boarding

7.6

Food

6.7

Overall

7.6

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

Related info for your journey

Find useful and relevant information for your journey from Oslo Gardermoen 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 Oslo Gardermoen?

    For a flight from Oslo Gardermoen to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from Oslo Gardermoen per day. 0 airlines have flights to Lambert-St Louis from Oslo Gardermoen on a regular basis.

  • Can I find deals for flights from Oslo Gardermoen to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Oslo Gardermoen 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.

  • What is the cheapest month to book a flight from Oslo Gardermoen Airport to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to St. Louis (average of $311). Flying from Oslo Gardermoen Airport to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
Fenton
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
Chesterfield

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