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$468+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — STL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$468
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$867
From Oslo Gardermoen to Lambert-St Louis
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Highest demand for flights based on searches. 16% potential increase in price ($120 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 8/289:50 amOSL - STL
2 stops41h 10mUnited Airlines
Thu 9/411:05 amSTL - OSL
2 stops23h 55mUnited Airlines
Deal found 7/29$468
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:45 pmOSL - STL
1 stop25h 45mLufthansa
Thu 9/47:04 pmSTL - OSL
2 stops15h 56mLufthansa
Deal found 7/29$497
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:40 amOSL - STL
2 stops20h 26mBritish Airways
Wed 9/173:59 pmSTL - OSL
2 stops24h 31mBritish Airways
Deal found 7/27$505
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/284:30 pmOSL - STL
3 stops26h 40mMultiple Airlines
Thu 9/41:00 pmSTL - OSL
3 stops19h 25mMultiple Airlines
Deal found 7/29$692
This Travelis deal was found by Cheapflights users on 7/27. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/111:10 pmOSL - STL
2 stops17h 41mFinnair
Fri 8/154:19 pmSTL - OSL
2 stops17h 16mFinnair
Deal found 7/27$878
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 9/68:20 amOSL - STL
2 stops35h 03mAmerican Airlines
Fri 11/73:23 pmSTL - OSL
2 stops19h 07mAmerican Airlines
Deal found 7/29$1,246
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/305:40 amOSL - STL
2 stops21h 05mAir Canada
Thu 7/311:30 pmSTL - OSL
2 stops40h 35mAir Canada
Deal found 7/28$1,406

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 July 29, 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

Thu 8/28

9:50 am-8:00 pm

2 stops41h 10m

Lambert-St Louis

Thu 9/4

11:05 am-6:00 pm

2 stops23h 55m

$468

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Thu 8/28

6:45 pm-1:30 pm

1 stop25h 45m

Lambert-St Louis

Thu 9/4

7:04 pm-6:00 pm

2 stops15h 56m

$497

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 9/10

7:40 am-9:06 pm

2 stops20h 26m

Lambert-St Louis

Wed 9/17

3:59 pm-11:30 pm

2 stops24h 31m

$505

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Thu 8/28

4:30 pm-12:10 pm

3 stops26h 40m

Lambert-St Louis

Thu 9/4

1:00 pm-3:25 pm

3 stops19h 25m

$692

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Mon 8/11

1:10 pm-11:51 pm

2 stops17h 41m

Lambert-St Louis

Fri 8/15

4:19 pm-4:35 pm

2 stops17h 16m

$878

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Sat 9/6

8:20 am-12:23 pm

2 stops35h 03m

Lambert-St Louis

Fri 11/7

3:23 pm-5:30 pm

2 stops19h 07m

$1,246

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 8/13

6:50 am-10:45 pm

2 stops22h 55m

$649

OsloSt. Louis

OSL - STL

OSLSTL

Oslo Gardermoen

Wed 8/13

10:20 pm-1:32 pm

3 stops46h 12m

$708

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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

How much does it cost to fly round-trip from Oslo Gardermoen Airport to St. Louis?

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 July 29, 2025.
Get a feel of what it's like to fly with Finnair, United Airlines, and American Airlines from Oslo Gardermoen Airport to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Crew

8.1

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,316 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Crew

8.1

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
8,899 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Crew

8.1

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Crew

8.1

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,265 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Crew

8.1

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.6
Okay
7,208 reviews
Finnair
7.6
Good
1,316 reviews

Comfort

7.5

Crew

8.1

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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.

  • What are the cheapest airlines flying from Oslo Gardermoen Airport to St. Louis round-trip?

    Our cheapest airline available from Oslo Gardermoen Airport to St. Louis is United Airlines. Our recent data shows that you can find tickets from as low as $468 on this airline. Additional options worth looking into are Lufthansa and British Airways, starting at $497 and $505 round-trip. United Airlines is currently priced 25% below the average price you’ll pay for this route.

  • 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

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