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Oslo

$507+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSL
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
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 July 25, 2025.

Round-trip from

$627
(Gurufare)

One-way from

$507
(Ovago)

Popular in

December

Cheapest in

March

Average price

$1,173
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. 12% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($70 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 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 July 25, 2025.

This Gurufare deal was found by Cheapflights users on 7/24. 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.
Mon 8/251:26 pmSTL - OSL
2 stops16h 29mScandinavian Airlines
Wed 9/39:00 amOSL - STL
2 stops20h 02mScandinavian Airlines
Deal found 7/24$627
This Air France deal was found by Cheapflights users on 7/24. 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.
Tue 8/265:25 pmSTL - OSL
2 stops15h 20mAir France
Thu 9/46:05 amOSL - STL
2 stops17h 40mAir France
Deal found 7/24$640
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 8/2410:45 amSTL - OSL
2 stops18h 05mDelta
Tue 9/26:05 amOSL - STL
2 stops19h 56mDelta
Deal found 7/24$641
This Ticket deal was found by Cheapflights users on 7/23. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:30 pmSTL - OSL
2 stops15h 10mKLM
Fri 9/196:30 amOSL - STL
2 stops17h 15mKLM
Deal found 7/23$685
This Expedia deal was found by Cheapflights users on 7/24. 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.
Mon 12/11:20 pmSTL - OSL
2 stops22h 20mBritish Airways
Sun 2/18:45 amOSL - STL
2 stops16h 38mBritish Airways
Deal found 7/24$691
This Lufthansa deal was found by Cheapflights users on 7/24. 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.
Sun 8/245:30 pmSTL - OSL
2 stops21h 40mLufthansa
Fri 9/56:35 amOSL - STL
1 stop13h 55mLufthansa
Deal found 7/24$695
This Air Canada deal was found by Cheapflights users on 7/24. 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.
Tue 8/264:00 pmSTL - OSL
2 stops19h 05mAir Canada
Fri 9/56:35 amOSL - STL
2 stops20h 22mAir Canada
Deal found 7/24$697
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Mon 12/19:00 amSTL - OSL
2 stops25h 45mUnited Airlines
Sun 2/16:05 amOSL - STL
1 stop14h 50mUnited Airlines
Deal found 7/24$704
This Booking.com deal was found by Cheapflights users on 7/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:30 pmSTL - OSL
2 stops21h 35mMultiple Airlines
Sun 10/266:05 amOSL - STL
1 stop14h 50mMultiple Airlines
Deal found 7/21$729
This FlightHub deal was found by Cheapflights users on 7/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/183:40 pmSTL - TRF
2 stops15h 40mScandinavian Airlines
Tue 8/262:55 pmTRF - STL
2 stops38h 07mScandinavian Airlines
Deal found 7/24$748
This Booking.com deal was found by Cheapflights users on 7/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/181:30 pmSTL - TRF
3 stops24h 40mMultiple Airlines
Tue 8/266:25 pmTRF - STL
2 stops26h 05mMultiple Airlines
Deal found 7/24$975

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 July 25, 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

Mon 8/25

1:26 pm-12:55 pm

2 stops16h 29m

Oslo Gardermoen

Wed 9/3

9:00 am-10:02 pm

2 stops20h 02m

$627

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Tue 8/26

5:25 pm-3:45 pm

2 stops15h 20m

Oslo Gardermoen

Thu 9/4

6:05 am-4:45 pm

2 stops17h 40m

$640

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/24

10:45 am-11:50 am

2 stops18h 05m

Oslo Gardermoen

Tue 9/2

6:05 am-7:01 pm

2 stops19h 56m

$641

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 9/5

5:30 pm-3:40 pm

2 stops15h 10m

Oslo Gardermoen

Fri 9/19

6:30 am-4:45 pm

2 stops17h 15m

$685

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/24

5:30 pm-10:10 pm

2 stops21h 40m

Oslo Gardermoen

Fri 9/5

6:35 am-1:30 pm

1 stop13h 55m

$695

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Tue 8/26

4:00 pm-6:05 pm

2 stops19h 05m

Oslo Gardermoen

Fri 9/5

6:35 am-7:57 pm

2 stops20h 22m

$697

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 10/15

7:53 pm-7:15 pm

2 stops16h 22m

Oslo Gardermoen

Sun 10/26

8:50 pm-11:44 pm

2 stops32h 54m

$709

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 10/15

1:30 pm-6:05 pm

2 stops21h 35m

Oslo Gardermoen

Sun 10/26

6:05 am-2:55 pm

1 stop14h 50m

$729

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Mon 8/18

3:40 pm-2:20 pm

2 stops15h 40m

Oslo Sandefjord

Tue 8/26

2:55 pm-10:02 pm

2 stops38h 07m

$748

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Tue 8/26

5:30 pm-6:05 pm

2 stops17h 35m

Oslo Gardermoen

Sun 9/7

6:50 am-5:52 pm

2 stops18h 02m

$765

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 16 results
1
2

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, November is the cheapest month in which you can book a flight from St. Louis to Oslo (average of $567). Flying from St. Louis to Oslo in June is currently the most expensive (average of $1,009). 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 July 25, 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 37% 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 July 25, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Air France 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
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,967 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,375 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,462 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,880 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,442 reviews
Delta
8.0
Very good
7,967 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 6 different airlines.

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

    Scandinavian Airlines, at $627, was found to be the cheapest airline from St. Louis to Oslo.Alternate airlines to your destination round-trip include Air France and Delta. Scandinavian Airlines is 34% 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, November is the cheapest month in which you can book a flight from St. Louis to Oslo (average of $567). Flying from St. Louis to Oslo in June is currently the most expensive (average of $1,009). 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 6 airlines flying from St. Louis to Oslo

Discover the top 6 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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$586Average$891FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$644Average$1,010FlexibilityNo cancel feeOn-time69%
KLMCheapest$649Average$801FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$659Average$1,789FlexibilityNo cancel feeOn-time67%
DeltaCheapest$676Average$1,009FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$765Average$937FlexibilityNo cancel feeOn-time76%

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