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$509+ 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 8 — Jul 151
Tue 7/8
Tue 7/15
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 3, 2025.

Round-trip from

$613
(Gotogate)

One-way from

$509
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$1,189
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. 8% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($58 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 3, 2025.

This Gotogate deal was found by Cheapflights users on 7/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:05 pmSTL - OSL
2 stops19h 40mMultiple Airlines
Wed 11/56:05 amOSL - STL
1 stop14h 50mMultiple Airlines
Deal found 7/2$613
This Gotogate deal was found by Cheapflights users on 6/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:50 pmSTL - OSL
1 stop14h 10mLufthansa
Wed 11/56:05 amOSL - STL
1 stop14h 50mLufthansa
Deal found 6/30$627
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Wed 10/294:50 pmSTL - OSL
1 stop16h 30mUnited Airlines
Mon 11/311:50 amOSL - STL
2 stops58h 39mUnited Airlines
Deal found 6/30$660
This Delta deal was found by Cheapflights users on 7/2. 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.
Mon 8/49:27 amSTL - OSL
2 stops18h 38mDelta
Fri 9/56:30 amOSL - STL
2 stops22h 32mDelta
Deal found 7/2$702
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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.
Sat 9/201:26 pmSTL - OSL
2 stops16h 29mScandinavian Airlines
Fri 9/267:10 amOSL - STL
2 stops23h 14mScandinavian Airlines
Deal found 7/1$714
This SmartFares deal was found by Cheapflights users on 7/1. 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.
Sat 9/201:26 pmSTL - TRF
2 stops17h 54mScandinavian Airlines
Fri 9/262:55 pmTRF - STL
2 stops38h 05mScandinavian Airlines
Deal found 7/1$1,117
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Wed 10/294:05 pmSTL - TRF
2 stops21h 30mMultiple Airlines
Mon 11/33:30 pmTRF - STL
3 stops35h 30mMultiple Airlines
Deal found 6/30$1,485

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 3, 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

Wed 10/29

4:05 pm-5:45 pm

2 stops19h 40m

Oslo Gardermoen

Wed 11/5

6:05 am-1:55 pm

1 stop14h 50m

$613

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 10/29

4:50 pm-1:00 pm

1 stop14h 10m

Oslo Gardermoen

Wed 11/5

6:05 am-1:55 pm

1 stop14h 50m

$627

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 10/29

4:50 pm-3:20 pm

1 stop16h 30m

Oslo Gardermoen

Mon 11/3

11:50 am-3:29 pm

2 stops58h 39m

$660

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 8/4

9:27 am-11:05 am

2 stops18h 38m

Oslo Gardermoen

Fri 9/5

6:30 am-10:02 pm

2 stops22h 32m

$702

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sat 9/20

1:26 pm-12:55 pm

2 stops16h 29m

Oslo Gardermoen

Fri 9/26

7:10 am-11:24 pm

2 stops23h 14m

$714

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Sat 9/20

1:26 pm-2:20 pm

2 stops17h 54m

Oslo Sandefjord

Fri 9/26

2:55 pm-10:00 pm

2 stops38h 05m

$1,117

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Wed 10/29

4:05 pm-7:35 pm

2 stops21h 30m

Oslo Sandefjord

Mon 11/3

3:30 pm-8:00 pm

3 stops35h 30m

$1,485

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 9/26

5:00 pm-4:20 pm

2 stops16h 20m

Oslo Gardermoen

Fri 10/3

11:45 am-9:53 pm

2 stops17h 08m

$4,217

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 9/17

2:11 pm-7:15 pm

2 stops22h 04m

$509

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 9/17

7:23 am-11:30 pm

2 stops33h 07m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 13 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 $1,012). 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 3, 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.

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 3, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Scandinavian 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
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
1,416 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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!
Lufthansa
6.8
Okay
7,207 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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?

    Lufthansa, at $627, was found to be the cheapest airline from St. Louis to Oslo.Alternate airlines to your destination round-trip include United Airlines and Delta. Lufthansa 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?

    $509 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on British Airways and Lufthansa, with prices starting from $519 and $869, 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 $1,012). 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
Kansas City to Sandefjord flights
St. Louis to Bergen 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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$586Average$903FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$593Average$933FlexibilityNo 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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