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Oslo

$485+ 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
nov. 6 — nov. 131
jue. 11/6
jue. 11/13
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 octubre 7, 2025.

This Delta deal was found by Cheapflights users on 10/7. 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.
mié. 10/810:45 amSTL - OSL
2 stops18h 05mDelta
mar. 10/146:30 amOSL - STL
2 stops20h 53mDelta
Deal found 10/7$628
This United Airlines deal was found by Cheapflights users on 10/7. 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.
mié. 10/83:30 pmSTL - OSL
1 stop13h 45mUnited Airlines
mar. 10/146:35 amOSL - STL
2 stops23h 00mUnited Airlines
Deal found 10/7$635
This Delta deal was found by Cheapflights users on 10/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/32:07 pmSTL - OSL
2 stops19h 13mDelta
dom. 12/79:50 amOSL - STL
2 stops38h 20mDelta
Deal found 10/6$644
This Delta deal was found by Cheapflights users on 10/7. 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.
jue. 11/611:36 amSTL - OSL
2 stops19h 14mDelta
jue. 11/139:25 amOSL - STL
2 stops21h 19mDelta
Deal found 10/7$650
This Lufthansa deal was found by Cheapflights users on 10/6. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/33:50 pmSTL - OSL
1 stop14h 10mLufthansa
dom. 12/76:05 amOSL - STL
1 stop14h 50mLufthansa
Deal found 10/6$717
This United Airlines deal was found by Cheapflights users on 10/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:25 amSTL - OSL
2 stops20h 55mUnited Airlines
dom. 12/76:05 amOSL - STL
1 stop14h 50mUnited Airlines
Deal found 10/6$722
This Cheapflightsfares deal was found by Cheapflights users on 10/4. 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.
mié. 10/83:30 pmSTL - OSL
1 stop17h 10mLufthansa
vie. 10/109:50 amOSL - STL
2 stops21h 07mLufthansa
Deal found 10/4$808
This Gurufare deal was found by Cheapflights users on 10/7. 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.
mié. 10/83:30 pmSTL - OSL
1 stop13h 45mLufthansa
mar. 10/144:30 pmOSL - STL
1 stop28h 00mLufthansa
Deal found 10/7$1,082
This Lufthansa deal was found by Cheapflights users on 10/7. 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.
jue. 11/611:49 amSTL - OSL
2 stops16h 11mLufthansa
jue. 11/131:45 pmOSL - STL
1 stop31h 10mLufthansa
Deal found 10/7$1,399
This Air Canada deal was found by Cheapflights users on 10/7. 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.
jue. 11/64:05 pmSTL - OSL
2 stops16h 35mAir Canada
jue. 11/136:15 amOSL - STL
3 stops22h 25mAir Canada
Deal found 10/7$1,643
This Mytrip deal was found by Cheapflights users on 10/7. 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.
jue. 11/64:05 pmSTL - TRF
2 stops17h 25mMultiple Airlines
jue. 11/139:40 amTRF - STL
2 stops35h 15mMultiple Airlines
Deal found 10/7$1,821
This Air France deal was found by Cheapflights users on 10/6. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/34:32 pmSTL - TRF
2 stops38h 33mAir France
dom. 12/72:35 pmTRF - STL
2 stops57h 00mAir France
Deal found 10/6$22,357

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 octubre 7, 2025.

Round-trip from

$485
(FlightHub)

Popular in

November

Cheapest in

March

Average price

$766
From Lambert-St Louis to Oslo
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 octubre 7, 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

sáb. 2/14

1:00 pm-1:45 pm

2 stops17h 45m

Oslo Gardermoen

jue. 2/19

11:05 am-8:39 pm

2 stops16h 34m

$485

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

sáb. 2/14

1:00 pm-1:45 pm

2 stops17h 45m

Oslo Gardermoen

vie. 2/20

9:00 am-8:39 pm

2 stops18h 39m

$485

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

sáb. 2/14

10:00 am-1:10 pm

2 stops20h 10m

Oslo Gardermoen

mié. 2/18

9:05 pm-8:39 pm

2 stops30h 34m

$519

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

sáb. 2/14

10:00 am-1:10 pm

2 stops20h 10m

Oslo Gardermoen

dom. 2/22

6:55 pm-8:39 pm

2 stops32h 44m

$639

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

mié. 12/3

11:40 am-4:20 pm

2 stops21h 40m

Oslo Gardermoen

dom. 12/7

12:40 pm-5:56 pm

2 stops36h 16m

$644

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

mié. 12/3

3:50 pm-1:00 pm

1 stop14h 10m

Oslo Gardermoen

dom. 12/7

6:05 am-1:55 pm

1 stop14h 50m

$717

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

mié. 12/3

3:50 pm-3:20 pm

1 stop16h 30m

Oslo Gardermoen

dom. 12/7

6:05 am-1:55 pm

1 stop14h 50m

$717

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

jue. 11/6

4:05 pm-4:30 pm

2 stops17h 25m

Oslo Sandefjord

jue. 11/13

9:40 am-1:55 pm

2 stops35h 15m

$1,821

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

mié. 12/3

4:32 pm-2:05 pm

2 stops38h 33m

Oslo Sandefjord

dom. 12/7

2:35 pm-4:35 pm

2 stops57h 00m

$22,357

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

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 November is currently the most expensive (average of $957). 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 octubre 7, 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 octubre 7, 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
8.0
Very good
7,970 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

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
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

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
8,957 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

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
11,041 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

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 Canada
7.1
Good
10,250 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

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
7,457 reviews
Delta
8.0
Very good
7,970 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

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 5 different airlines.

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

    Airlines like Scandinavian Airlines and Delta fly from St. Louis to Oslo in about 17h 45m. The time it takes to get you to your destination can typically vary by up to 3h 55m. 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 United Airlines. Lufthansa is 35% 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 November is currently the most expensive (average of $957). 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 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 octubre 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$581Average$877FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$586Average$891FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$644Average$933FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$659Average$1,789FlexibilityNo cancel feeOn-time67%
DeltaCheapest$676Average$885FlexibilityNo cancel feeOn-timeN/A

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