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Oslo

$264+ Cheap flights from St. Louis (STL) to Oslo

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSL
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from St. Louis to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Oslo (OS1). 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 January 15, 2026.

Round-trip from

$470
(Finnair)

One-way from

$264
(oojo)

Popular in

July

Cheapest in

November

Average price

$713
From Lambert-St Louis to Oslo
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One-way flight from Lambert-St Louis to Oslo
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Highest demand for flights based on searches. 20% potential increase in price ($201 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from St. Louis to Oslo

Cheapest flights from St. Louis to Oslo
Explore the most affordable flight options available from St. Louis to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This Finnair deal was found by Cheapflights users on 1/14. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/111:46 am
STL
-
OSL
2 stops25h 24m
Finnair
Tue 3/178:50 pm
OSL
-
STL
2 stops33h 08m
Finnair
Deal found 1/14$470
This Finnair deal was found by Cheapflights users on 1/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:12 am
STL
-
OSL
2 stops31h 58m
Multiple Airlines
Tue 3/178:50 pm
OSL
-
STL
2 stops33h 08m
Multiple Airlines
Deal found 1/15$480
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/19:20 am
STL
-
OSL
2 stops30h 20m
British Airways
Sun 3/83:05 pm
OSL
-
STL
2 stops38h 43m
British Airways
Deal found 1/14$489
This oojo deal was found by Cheapflights users on 1/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:00 am
STL
-
OSL
2 stops25h 05m
British Airways
Wed 4/228:30 pm
OSL
-
STL
2 stops33h 34m
British Airways
Deal found 1/15$502
This Mytrip deal was found by Cheapflights users on 1/14. 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.
Sun 3/14:05 pm
STL
-
OSL
2 stops37h 05m
Multiple Airlines
Sun 3/86:05 am
OSL
-
STL
1 stop14h 50m
Multiple Airlines
Deal found 1/14$508
This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:53 am
STL
-
OSL
2 stops24h 32m
British Airways
Fri 5/157:50 am
OSL
-
STL
2 stops22h 58m
British Airways
Deal found 1/13$517
This Finnair deal was found by Cheapflights users on 1/14. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:20 am
STL
-
OSL
2 stops28h 15m
Multiple Airlines
Fri 4/248:35 am
OSL
-
STL
2 stops17h 55m
Multiple Airlines
Deal found 1/14$543
This Cheapflightsfares deal was found by Cheapflights users on 1/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:30 pm
STL
-
OSL
1 stop17h 25m
Lufthansa
Fri 4/246:25 am
OSL
-
STL
1 stop14h 00m
Lufthansa
Deal found 1/14$551
This Scandinavian Airlines deal was found by Cheapflights users on 1/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:42 pm
STL
-
TRF
2 stops15h 48m
Scandinavian Airlines
Sat 8/296:00 am
TRF
-
STL
2 stops24h 37m
Scandinavian Airlines
Deal found 1/14$1,048

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Oslo 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 January 15, 2026.
Use the filters below to find and compare flights from St. Louis to Oslo that are best for you.

Fly from

St. Louis

Fly to

Oslo

Route

Depart

Return

Price

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 3/1

11:46 am-8:10 pm

2 stops25h 24m

Oslo Gardermoen

Tue 3/17

8:50 pm-11:58 pm

2 stops33h 08m

$470

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 3/1

5:12 am-8:10 pm

2 stops31h 58m

Oslo Gardermoen

Tue 3/17

8:50 pm-11:58 pm

2 stops33h 08m

$480

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 3/1

9:20 am-10:40 pm

2 stops30h 20m

Oslo Gardermoen

Sun 3/8

3:05 pm-11:48 pm

2 stops38h 43m

$489

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 4/11

8:00 am-4:05 pm

2 stops25h 05m

Oslo Gardermoen

Wed 4/22

8:30 pm-11:04 pm

2 stops33h 34m

$502

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Tue 5/5

8:53 am-4:25 pm

2 stops24h 32m

Oslo Gardermoen

Fri 5/15

7:50 am-11:48 pm

2 stops22h 58m

$517

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 4/17

5:20 am-4:35 pm

2 stops28h 15m

Oslo Gardermoen

Fri 4/24

8:35 am-7:30 pm

2 stops17h 55m

$543

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Thu 1/29

8:05 am-5:10 pm

2 stops26h 05m

Oslo Gardermoen

Mon 2/2

2:05 pm-10:36 am

2 stops51h 31m

$599

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 5/9

2:29 pm-2:25 pm

2 stops16h 56m

$264

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Tue 5/19

2:29 pm-4:35 pm

2 stops19h 06m

$289

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 5/20

7:30 am-10:05 pm

2 stops31h 35m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 21 results
1
2
3

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

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

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

Currently, April is the cheapest month in which you can book a flight from St. Louis to Oslo (average of $557). Flying from St. Louis to Oslo in June is currently the most expensive (average of $946). 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.

Reviews of airlines servicing Oslo

Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated January 15, 2026.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Air Canada from St. Louis to Oslo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,048 reviews
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,163 reviews
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,622 reviews
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,717 reviews
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Oslo. 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 from for flights from St. Louis to Oslo?

    If you book a flight to Oslo from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Oslo per day from 4 different airlines.

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

    Airlines like Finnair and British Airways fly from St. Louis to Oslo in about 25h 24m. The time it takes to get you to your destination can typically vary by up to 4h 56m. The distance from St. Louis to Oslo is about 4296 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Lufthansa, at $581, was found to be the cheapest airline from St. Louis to Oslo.Alternate airlines to your destination round-trip include Delta and Air Canada. Lufthansa is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Oslo 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 St. Louis to Oslo?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Oslo (average of $557). Flying from St. Louis to Oslo in June is currently the most expensive (average of $946). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Oslo Gardermoen flights
St. Louis to Oslo Gardermoen flights
St. Louis to Bergen flights
Kansas City to Sandefjord flights
Kansas City to Bergen flights

Top 4 airlines flying from St. Louis to Oslo

Discover the top 4 airlines that operate flights from St. Louis to Oslo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$581Average$834FlexibilityNo cancel feeOn-time76%
DeltaCheapest$625Average$877FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$657Average$1,221FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$674Average$933FlexibilityNo cancel feeOn-time69%

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