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$543+ Cheap flights from Missouri 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OSL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Missouri to Oslo

Keep the following information in mind while searching for Missouri to Oslo flight deals. Data was last updated September 15, 2025.

Round-trip from

$543
(Sembo)

Popular in

June

Cheapest in

January

Average price

$643
From Missouri to Oslo
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Missouri to Oslo

Cheapest flights from Missouri to Oslo
Explore the most affordable flight options available from Missouri to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Sembo deal was found by Cheapflights users on 9/12. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/193:30 pmSTL - OSL
1 stop17h 10mMultiple Airlines
Tue 11/41:45 pmOSL - STL
2 stops32h 44mMultiple Airlines
Deal found 9/12$543
This Finnair deal was found by Cheapflights users on 9/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:01 amSTL - OSL
2 stops31h 09mMultiple Airlines
Mon 11/38:50 pmOSL - STL
2 stops29h 40mMultiple Airlines
Deal found 9/12$566
This Gotogate deal was found by Cheapflights users on 9/12. 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.
Sun 10/193:30 pmSTL - OSL
1 stop17h 10mLufthansa
Tue 11/44:35 pmOSL - STL
1 stop28h 20mLufthansa
Deal found 9/12$576
This Ticket deal was found by Cheapflights users on 9/14. 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.
Sun 11/25:51 pmMCI - OSL
2 stops15h 29mAir France
Sun 11/164:50 pmOSL - MCI
2 stops30h 57mAir France
Deal found 9/14$616
This United Airlines deal was found by Cheapflights users on 9/11. 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 12/34:05 pmSTL - OSL
2 stops24h 40mUnited Airlines
Sun 12/76:05 amOSL - STL
1 stop14h 50mUnited Airlines
Deal found 9/11$623
This Orbitz deal was found by Cheapflights users on 9/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:46 pmMCI - OSL
2 stops35h 24mBritish Airways
Mon 1/57:20 amOSL - MCI
2 stops39h 42mBritish Airways
Deal found 9/14$687
This Delta deal was found by Cheapflights users on 9/13. 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.
Sat 10/46:40 amSTL - OSL
2 stops19h 00mDelta
Sat 10/118:10 amOSL - STL
2 stops20h 54mDelta
Deal found 9/13$797
This Lufthansa deal was found by Cheapflights users on 9/11. 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.
Wed 12/33:50 pmSTL - OSL
1 stop18h 40mLufthansa
Sun 12/76:05 amOSL - STL
1 stop14h 50mLufthansa
Deal found 9/11$806
This Air France deal was found by Cheapflights users on 9/13. 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.
Wed 9/172:00 pmMCI - OSL
2 stops14h 50mMultiple Airlines
Fri 9/192:15 pmOSL - MCI
2 stops16h 29mMultiple Airlines
Deal found 9/13$912
This KLM deal was found by Cheapflights users on 9/13. 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.
Tue 10/712:14 pmSTL - TRF
2 stops19h 06mKLM
Mon 10/132:55 pmTRF - STL
2 stops32h 48mKLM
Deal found 9/13$1,000
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Sun 11/25:15 amMCI - OSL
3 stops22h 45mMultiple Airlines
Sun 11/161:05 pmOSL - MCI
3 stops29h 03mMultiple Airlines
Deal found 9/14$1,220
This FlightHub deal was found by Cheapflights users on 9/13. 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.
Sat 9/203:55 pmSTL - TRF
2 stops15h 25mScandinavian Airlines
Tue 9/302:55 pmTRF - STL
2 stops38h 05mScandinavian Airlines
Deal found 9/13$1,764

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri 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 September 15, 2025.
Use the filters below to find and compare flights from Missouri to Oslo that are best for you.

Fly from

Missouri

Fly to

Oslo

Route

Depart

Return

Price

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 10/19

9:15 am-2:45 pm

2 stops22h 30m

Oslo Gardermoen

Tue 11/4

1:45 pm-3:29 pm

2 stops32h 44m

$543

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 10/27

7:01 am-8:10 pm

2 stops31h 09m

Oslo Gardermoen

Mon 11/3

8:50 pm-7:30 pm

2 stops29h 40m

$566

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 10/19

3:30 pm-3:40 pm

1 stop17h 10m

Oslo Gardermoen

Tue 11/4

4:35 pm-1:55 pm

1 stop28h 20m

$576

Kansas CityOslo

MCI - OSL

MCIOSL

Kansas City

Sun 11/2

5:51 pm-4:20 pm

2 stops15h 29m

Oslo Gardermoen

Sun 11/16

4:50 pm-4:47 pm

2 stops30h 57m

$616

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 12/3

4:05 pm-11:45 pm

2 stops24h 40m

Oslo Gardermoen

Sun 12/7

6:05 am-1:55 pm

1 stop14h 50m

$623

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Thu 3/12

12:01 pm-12:00 pm

2 stops17h 59m

Oslo Gardermoen

Fri 3/20

8:15 am-10:24 pm

2 stops20h 09m

$680

Kansas CityOslo

MCI - OSL

MCIOSL

Kansas City

Mon 12/29

7:46 pm-2:10 pm

2 stops35h 24m

Oslo Gardermoen

Mon 1/5

7:20 am-4:02 pm

2 stops39h 42m

$687

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 12/3

3:50 pm-5:30 pm

1 stop18h 40m

Oslo Gardermoen

Sun 12/7

6:05 am-1:55 pm

1 stop14h 50m

$806

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Tue 10/7

12:14 pm-2:20 pm

2 stops19h 06m

Oslo Sandefjord

Mon 10/13

2:55 pm-4:43 pm

2 stops32h 48m

$1,000

Kansas CityOslo

MCI - OSL

MCIOSL

Kansas City

Sun 11/2

5:15 am-11:00 am

3 stops22h 45m

Oslo Gardermoen

Sun 11/16

1:05 pm-11:08 am

3 stops29h 03m

$1,220

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 12 results
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Best time to book a flight from Missouri to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo from Missouri 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 Missouri to Oslo

What is the cheapest month to book a flight from Missouri to Oslo?

Currently, November is the cheapest month in which you can book a flight from Missouri to Oslo (average of $567). Flying from Missouri to Oslo in June is currently the most expensive (average of $1,005). 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 MO to OSL?

Find hourly flight availability from Missouri 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Oslo as you normally would.

How much does it cost to fly round-trip from Missouri to Oslo?

Related info for your journey

Find useful and relevant information for your journey from Missouri to Oslo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Missouri to Oslo?

    Air Canada, Lufthansa, and Air France can get you from Missouri to Oslo in just under 15h 29m. Your travel time can differ by up to 7h 01m. Missouri and Oslo are separated by a distance of 4391 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Missouri to Oslo?

    While some choose either Lambert-St Louis - Oslo Gardermoen or Kansas City - Oslo Sandefjord, Kansas City - Oslo Gardermoen is the most popular route from Missouri to Oslo.

  • Can I find deals for flights from Missouri to Oslo that include hotel bookings?

    Yes. In addition to deals on Missouri to Oslo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Oslo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Oslo.

  • Can I find deals for business class flights from Missouri to Oslo?

    Yes. Cheapflights offers flight deals from Missouri 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 Missouri to Oslo?

    Currently, November is the cheapest month in which you can book a flight from Missouri to Oslo (average of $567). Flying from Missouri to Oslo in June is currently the most expensive (average of $1,005). 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 Missouri to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Missouri to Oslo

Discover the top 8 airlines that operate flights from Missouri 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$565Average$640FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$581Average$877FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$586Average$891FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$594Average$1,077FlexibilityNo cancel feeOn-time70%
DeltaCheapest$613Average$952FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$644Average$904FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$659Average$1,789FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$674Average$953FlexibilityNo cancel feeOn-time69%

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