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$415+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Round-trip from

$662
(Air Canada)

One-way from

$415
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$840
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. 7% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($67 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 17, 2025.

This Air Canada deal was found by Cheapflights users on 4/17. 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 5/207:30 amSTL - OSL
2 stops22h 35mAir Canada
Wed 6/46:50 amOSL - STL
2 stops20h 08mAir Canada
Deal found 4/17$662
This United Airlines deal was found by Cheapflights users on 4/16. 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 9/11:30 pmSTL - OSL
2 stops21h 30mUnited Airlines
Wed 9/109:45 amOSL - STL
2 stops36h 31mUnited Airlines
Deal found 4/16$668
This CheapOair deal was found by Cheapflights users on 4/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/207:30 amSTL - OSL
2 stops22h 35mMultiple Airlines
Wed 6/46:50 amOSL - STL
1 stop13h 40mMultiple Airlines
Deal found 4/17$675
This Delta deal was found by Cheapflights users on 4/16. 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 6/295:23 pmSTL - OSL
2 stops16h 17mDelta
Mon 7/216:05 amOSL - STL
2 stops21h 25mDelta
Deal found 4/16$945
This Gurufare deal was found by Cheapflights users on 4/17. 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.
Thu 6/261:30 pmSTL - OSL
2 stops18h 50mScandinavian Airlines
Fri 7/46:00 amOSL - STL
2 stops24h 51mScandinavian Airlines
Deal found 4/17$1,005
This SmartFares deal was found by Cheapflights users on 4/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/11:30 pmSTL - TRF
2 stops17h 50mScandinavian Airlines
Wed 9/102:55 pmTRF - STL
2 stops39h 44mScandinavian Airlines
Deal found 4/17$1,067
This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/131:30 pmSTL - OSL
2 stops14h 35mKLM
Fri 7/47:05 amOSL - STL
2 stops14h 31mKLM
Deal found 4/17$1,145
This oojo deal was found by Cheapflights users on 4/16. 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 4/208:00 amSTL - OSL
2 stops20h 00mTurkish Airlines
Tue 4/222:35 pmOSL - STL
2 stops31h 07mTurkish Airlines
Deal found 4/16$1,461
This Gurufare deal was found by Cheapflights users on 4/17. 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.
Sat 7/195:30 pmSTL - OSL
2 stops21h 40mLufthansa
Sun 7/276:50 amOSL - STL
1 stop13h 40mLufthansa
Deal found 4/17$1,464

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 April 17, 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

Tue 5/20

7:30 am-1:05 pm

2 stops22h 35m

Oslo Gardermoen

Wed 6/4

6:50 am-7:58 pm

2 stops20h 08m

$662

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 9/1

1:30 pm-6:00 pm

2 stops21h 30m

Oslo Gardermoen

Wed 9/10

9:45 am-3:16 pm

2 stops36h 31m

$668

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Tue 5/20

7:30 am-1:05 pm

2 stops22h 35m

Oslo Gardermoen

Wed 6/4

6:50 am-1:30 pm

1 stop13h 40m

$675

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 6/29

5:23 pm-4:40 pm

2 stops16h 17m

Oslo Gardermoen

Mon 7/21

6:05 am-8:30 pm

2 stops21h 25m

$945

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Thu 6/26

1:30 pm-3:20 pm

2 stops18h 50m

Oslo Gardermoen

Fri 7/4

6:00 am-11:51 pm

2 stops24h 51m

$1,005

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Mon 9/1

1:30 pm-2:20 pm

2 stops17h 50m

Oslo Sandefjord

Wed 9/10

2:55 pm-11:39 pm

2 stops39h 44m

$1,067

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 6/13

1:30 pm-11:05 am

2 stops14h 35m

Oslo Gardermoen

Fri 7/4

7:05 am-2:36 pm

2 stops14h 31m

$1,145

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 7/19

5:30 pm-10:10 pm

2 stops21h 40m

Oslo Gardermoen

Sun 7/27

6:50 am-1:30 pm

1 stop13h 40m

$1,464

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 7/20

8:44 pm-12:35 pm

3 stops32h 51m

$415

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 7/19

8:01 pm-4:35 pm

2 stops37h 34m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 15 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, 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 $1,101). 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 April 17, 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.

Rainfall in Oslo by month

Plan your trip to Oslo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oslo ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo when rainfall is around 1.6 in.

Temperature in Oslo by month

Plan your trip to Oslo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oslo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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 April 17, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and United Airlines from St. Louis to Oslo to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,335 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,142 reviews
Delta
8.0
Very good
7,917 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Air Canada, at $662, was found to be the cheapest airline from St. Louis to Oslo.Alternate airlines to your destination round-trip include United Airlines and Delta. Air Canada is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Oslo one-way?

    $496 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Lufthansa and United Airlines, with prices starting from $503 and $543, respectively.

  • 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 $1,101). 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.
St. Louis to Oslo Gardermoen flights
Kansas City to Oslo Gardermoen flights
Kansas City to Bergen flights
St. Louis 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$582Average$894FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$593Average$961FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$594Average$1,088FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$594Average$991FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$659Average$1,447FlexibilityNo cancel feeOn-time67%
DeltaCheapest$693Average$1,078FlexibilityNo cancel feeOn-timeN/A

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