HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$470+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — STL
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oslo Gardermoen to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 septiembre 11, 2025.

Round-trip from

$470
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$498
From Oslo Gardermoen to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Oslo Gardermoen to St. Louis

Best flights from Oslo Gardermoen to St. Louis
Discover carefully curated flight deals from Oslo Gardermoen to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/267:05 amOSL - STL
2 stops23h 27mAmerican Airlines
lun. 3/24:59 pmSTL - OSL
2 stops18h 41mAmerican Airlines
Deal found 9/9$470

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 septiembre 11, 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

jue. 2/26

7:05 am-11:32 pm

2 stops23h 27m

Lambert-St Louis

lun. 3/2

4:59 pm-6:40 pm

2 stops18h 41m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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.

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.

  • How long is the flight from Oslo Gardermoen Airport to St. Louis?

    A quick flight from Oslo Gardermoen Airport to St. Louis can take about 23h 27m. American Airlines provides one of the quickest options available for as low as $470. Oslo Gardermoen Airport and St. Louis are separated by a distance of 4296 mi.

  • 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.