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Oslo

$521+ Cheap flights from St. Louis (STL) to Oslo

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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:32 pmSTL - OSL
2 stops16h 48mDelta
Sun 12/712:40 pmOSL - STL
2 stops35h 30mDelta
Deal found 11/5$522
This Air France deal was found by Cheapflights users on 11/5. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:38 pmSTL - OSL
2 stops16h 47mAir France
Fri 12/126:25 amOSL - STL
2 stops17h 45mAir France
Deal found 11/5$528
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 11/93:50 pmSTL - OSL
1 stop14h 15mLufthansa
Tue 11/256:25 pmOSL - STL
2 stops34h 15mLufthansa
Deal found 11/5$563
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/65:24 pmSTL - OSL
2 stops17h 16mUnited Airlines
Thu 11/131:45 pmOSL - STL
2 stops32h 44mUnited Airlines
Deal found 11/5$650
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 12/311:50 amSTL - OSL
2 stops19h 20mAmerican Airlines
Sun 12/77:20 amOSL - STL
2 stops19h 10mAmerican Airlines
Deal found 11/6$657
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 12/56:42 pmSTL - OSL
2 stops21h 38mLufthansa
Fri 12/126:15 amOSL - STL
1 stop14h 40mLufthansa
Deal found 11/5$696
This Ovago deal was found by Cheapflights users on 11/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:50 amSTL - OSL
2 stops18h 10mLufthansa
Sun 12/76:05 amOSL - STL
1 stop14h 50mLufthansa
Deal found 11/6$818
This United deal was found by Cheapflights users on 11/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:50 pmSTL - OSL
1 stop24h 30mMultiple Airlines
Fri 12/126:15 amOSL - STL
1 stop14h 40mMultiple Airlines
Deal found 11/5$885
This Mytrip deal was found by Cheapflights users on 11/5. 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 11/93:50 pmSTL - OSL
3 stops24h 45mMultiple Airlines
Tue 11/251:05 pmOSL - STL
2 stops33h 24mMultiple Airlines
Deal found 11/5$1,053
This Gurufare deal was found by Cheapflights users on 11/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:41 pmSTL - TRF
2 stops15h 04mScandinavian Airlines
Fri 1/22:35 pmTRF - STL
2 stops40h 09mScandinavian Airlines
Deal found 11/6$1,601
This Air France deal was found by Cheapflights users on 11/5. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:32 pmSTL - TRF
2 stops38h 33mAir France
Sun 12/72:35 pmTRF - STL
2 stops57h 00mAir France
Deal found 11/5$22,355

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 November 6, 2025.

Round-trip from

$521
(United Airlines)

Popular in

July

Cheapest in

March

Average price

$885
From Lambert-St Louis to Oslo
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 6, 2025.
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

Sat 2/14

8:30 am-5:10 pm

2 stops25h 40m

Oslo Gardermoen

Sun 2/22

6:10 am-3:29 pm

2 stops40h 19m

$521

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 12/3

4:32 pm-4:20 pm

2 stops16h 48m

Oslo Gardermoen

Sun 12/7

12:40 pm-5:10 pm

2 stops35h 30m

$522

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 12/5

2:38 pm-2:25 pm

2 stops16h 47m

Oslo Gardermoen

Fri 12/12

6:25 am-5:10 pm

2 stops17h 45m

$528

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Thu 3/5

11:25 am-5:10 pm

2 stops22h 45m

Oslo Gardermoen

Wed 3/11

9:45 am-3:29 pm

2 stops35h 44m

$653

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 12/3

11:50 am-2:10 pm

2 stops19h 20m

Oslo Gardermoen

Sun 12/7

7:20 am-7:30 pm

2 stops19h 10m

$657

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 3/6

4:05 pm-3:20 pm

2 stops40h 15m

Oslo Gardermoen

Fri 3/13

6:15 am-2:55 pm

1 stop14h 40m

$660

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 12/5

6:42 pm-11:20 pm

2 stops21h 38m

Oslo Gardermoen

Fri 12/12

6:15 am-1:55 pm

1 stop14h 40m

$696

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 12/3

11:50 am-1:00 pm

2 stops18h 10m

Oslo Gardermoen

Sun 12/7

6:05 am-1:55 pm

1 stop14h 50m

$818

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 12/5

3:50 pm-11:20 pm

1 stop24h 30m

Oslo Gardermoen

Fri 12/12

6:15 am-1:55 pm

1 stop14h 40m

$885

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Fri 12/26

3:41 pm-1:45 pm

2 stops15h 04m

Oslo Sandefjord

Fri 1/2

2:35 pm-11:44 pm

2 stops40h 09m

$1,601

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 11 results
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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 $586). Flying from St. Louis to Oslo in June is currently the most expensive (average of $947). 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.

What is the cheapest time of day to fly from STL to OSL?

Find hourly flight availability from St. Louis to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Oslo at noon. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight in the evening.

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

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 November 6, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines 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
8,001 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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
8,001 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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
9,007 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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.
American Airlines
7.2
Good
11,040 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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
10,416 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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
7,558 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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 5 different airlines.

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

    Airlines like United Airlines, Delta, and Air France fly from St. Louis to Oslo in about 16h 47m. The time it takes to get you to your destination can typically vary by up to 8h 53m. 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 American Airlines and Delta. Lufthansa is 29% 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 $586). Flying from St. Louis to Oslo in June is currently the most expensive (average of $947). 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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Alternative routes for St. Louis to Oslo

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

Top 5 airlines flying from St. Louis to Oslo

Discover the top 5 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$581Average$873FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$586Average$891FlexibilityNo cancel feeOn-time71%
DeltaCheapest$625Average$884FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$657Average$1,221FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$674Average$933FlexibilityNo cancel feeOn-time69%

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