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$490+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSL
May 5 — May 121
Mon 5/5
Mon 5/12
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 30, 2025.

Round-trip from

$763
(Air Canada)

One-way from

$490
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$765
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. 5% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($57 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 30, 2025.

This Air Canada deal was found by Cheapflights users on 4/29. 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 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 6/49:45 amOSL - STL
2 stops17h 13mAir Canada
Deal found 4/29$763
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub 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 4/29$776
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 7/195:30 pmSTL - OSL
2 stops17h 35mUnited Airlines
Sun 7/276:50 amOSL - STL
2 stops22h 55mUnited Airlines
Deal found 4/29$956
This Gurufare deal was found by Cheapflights users on 4/29. 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 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 4/29$1,283
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:40 pmSTL - OSL
2 stops36h 20mTurkish Airlines
Fri 5/22:35 pmOSL - STL
2 stops31h 15mTurkish Airlines
Deal found 4/28$1,772
This Scandinavian Airlines deal was found by Cheapflights users on 4/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/193:42 pmSTL - OSL
2 stops17h 53mScandinavian Airlines
Sun 7/276:40 amOSL - STL
3 stops22h 01mScandinavian Airlines
Deal found 4/29$2,536

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 30, 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

9:45 am-7:58 pm

2 stops17h 13m

$763

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

$776

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 7/19

5:30 pm-6:05 pm

2 stops17h 35m

Oslo Gardermoen

Sun 7/27

6:50 am-10:45 pm

2 stops22h 55m

$956

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

$1,283

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 7/19

3:30 pm-4:35 pm

2 stops18h 05m

Oslo Gardermoen

Sun 7/27

6:40 am-11:39 pm

3 stops23h 59m

$2,536

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 7/26

2:52 pm-11:55 pm

3 stops50h 03m

$490

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 7/19

5:30 pm-2:45 pm

2 stops38h 15m

$496

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Sat 7/26

5:40 pm-9:30 am

3 stops56h 50m

$512

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 6/23

3:35 pm-6:05 pm

2 stops19h 30m

$716

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 7/16

1:04 pm-5:15 pm

2 stops21h 11m

$1,365

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 12 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 $1,059). 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 30, 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 30, 2025.
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Brussels Airlines
7.4
Good
346 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Scandinavian Airlines
7.3
Good
1,349 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
9,244 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.7
Okay
7,044 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 7 different airlines.

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

    Air Canada, at $763, was found to be the cheapest airline from St. Louis to Oslo.Alternate airlines to your destination round-trip include United Airlines and Lufthansa. Air Canada is 21% 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 Lufthansa. You may also be able to find cheap deals on United Airlines and Brussels Airlines, with prices starting from $716 and $1,365, 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 $1,059). 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
Kansas City to Bergen flights
Kansas City to Sandefjord flights
St. Louis to Bergen flights

Top 7 airlines flying from St. Louis to Oslo

Discover the top 7 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$582Average$894FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$593Average$961FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$594Average$991FlexibilityNo cancel feeOn-time71%
KLMCheapest$649Average$914FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$659Average$1,447FlexibilityNo cancel feeOn-time67%
DeltaCheapest$693Average$1,054FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$735Average$1,037FlexibilityNo cancel feeOn-time76%

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