What is the cheapest airline that flies from Lambert-St Louis to Oslo?

British Airways is the most popular carrier operating from Lambert-St Louis to Oslo

What airlines fly to Oslo?

Delta, Lufthansa and United Airlines are the top three most popular airlines that fly to Oslo from St. Louis according to our data. Delta is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 5 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Oslo?

Prices for flights from Lambert-St Louis Airport to Oslo are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Oslo?

The number of operators available for flights from Lambert-St Louis Airport to Oslo is 5 as of December 2025.

How old do you have to be to fly from Lambert-St Louis Airport to Oslo?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Oslo.

What documentation or ID do you need to fly to Oslo?

The travel and health documents you'll need for your trip to Oslo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$396 Cheap Flights from St. Louis to Oslo in 2025/26

Q: What is the typical price of a round-trip flight between St. Louis and Oslo?

Prices are currently low for flights on this route. Typical prices usually range from $674 to $1,092. The lowest price recently found on this route was $513.

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Find the cheapest flights from St. Louis to Oslo

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:19 pm - 4:20 pm

STL

OSL

19h 01m2 stops

8:30 pm - 10:29 pm

OSL

STL

32h 59m2 stops

$513British Airways

Mon, Apr 20 - Mon, Apr 27

3:45 pm - 1:50 pm

STL

OSL

15h 05m2 stops

9:25 am - 11:36 pm

OSL

STL

21h 11m2 stops

$518Delta

Fri, Feb 6 - Fri, Feb 13

7:50 am - 4:20 pm

STL

OSL

25h 30m2 stops

5:05 pm - 7:30 pm

OSL

STL

33h 25m1 stop

$521British Airways

Mon, Apr 20 - Mon, Apr 27

8:20 am - 5:40 pm

STL

OSL

26h 20m2 stops

11:50 am - 10:58 pm

OSL

STL

18h 08m2 stops

$529United Airlines

Wed, Feb 4 - Wed, Feb 11

3:31 pm - 11:50 am

STL

OSL

13h 19m2 stops

6:30 am - 5:42 pm

OSL

STL

18h 12m2 stops

$532KLM

Thu, Feb 5 - Thu, Feb 12

11:14 am - 4:35 pm

STL

OSL

22h 21m2 stops

12:50 pm - 11:24 pm

OSL

STL

17h 34m2 stops

$592Multiple Airlines

Sun, Apr 12 - Sat, Apr 18

3:30 pm - 3:35 pm

STL

OSL

17h 05m1 stop

1:05 pm - 1:25 pm

OSL

STL

31h 20m1 stop

$595United Airlines

Sun, Apr 12 - Sat, Apr 18

7:45 am - 3:35 pm

STL

OSL

24h 50m2 stops

9:55 am - 1:25 pm

OSL

STL

34h 30m1 stop

$599United Airlines

Sun, Apr 12 - Sat, Apr 18

6:25 am - 5:40 pm

STL

OSL

28h 15m2 stops

6:15 am - 5:45 pm

OSL

STL

18h 30m2 stops

$608United Airlines

Mon, Feb 23 - Fri, Feb 27

3:58 pm - 2:30 pm

STL

TRF

15h 32m2 stops

6:00 am - 11:38 pm

TRF

STL

24h 38m2 stops

$7,571Scandinavian Airlines

Sun, Apr 12 - Sat, Apr 18

British Airways flights from St. Louis to Oslo

Our best British Airways deals on St. Louis to Oslo flight tickets

British Airways

Apr 20

STL2:19 pmLambert-St Louis

19h 01m

2 stops

OSL4:20 pmOslo Gardermoen

Apr 27

OSL8:30 pmOslo Gardermoen

32h 59m

2 stops

STL10:29 pmLambert-St Louis

$513

Find similar

British Airways

Apr 20

STL7:50 amLambert-St Louis

25h 30m

2 stops

OSL4:20 pmOslo Gardermoen

Apr 27

OSL5:05 pmOslo Gardermoen

33h 25m

1 stop

STL7:30 pmLambert-St Louis

$521

Find similar

British Airways

Jun 15

STL8:06 pmLambert-St Louis

15h 34m

2 stops

OSL6:40 pmOslo Gardermoen

Jun 25

OSL7:45 amOslo Gardermoen

17h 17m

2 stops

STL6:02 pmLambert-St Louis

$1,941

Find similar

United Airlines flights from St. Louis to Oslo

Our best United Airlines deals on St. Louis to Oslo flight tickets

United Airlines

Feb 4

STL8:20 amLambert-St Louis

26h 20m

2 stops

OSL5:40 pmOslo Gardermoen

Feb 11

OSL11:50 amOslo Gardermoen

18h 08m

2 stops

STL10:58 pmLambert-St Louis

$529

Find similar

United Airlines

Apr 12

STL3:30 pmLambert-St Louis

17h 05m

1 stop

OSL3:35 pmOslo Gardermoen

Apr 18

OSL1:05 pmOslo Gardermoen

31h 20m

1 stop

STL1:25 pmLambert-St Louis

$595

Find similar

United Airlines

Apr 12

STL7:45 amLambert-St Louis

24h 50m

2 stops

OSL3:35 pmOslo Gardermoen

Apr 18

OSL9:55 amOslo Gardermoen

34h 30m

1 stop

STL1:25 pmLambert-St Louis

$599

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 4/20

2:19 pm-4:20 pm

2 stops19h 01m

Oslo Gardermoen

Mon 4/27

8:30 pm-10:29 pm

2 stops32h 59m

$513

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Fri 2/6

3:45 pm-1:50 pm

2 stops15h 05m

Oslo Gardermoen

Fri 2/13

9:25 am-11:36 pm

2 stops21h 11m

$518

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 4/20

7:50 am-4:20 pm

2 stops25h 30m

Oslo Gardermoen

Mon 4/27

5:05 pm-7:30 pm

1 stop33h 25m

$521

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 2/4

8:20 am-5:40 pm

2 stops26h 20m

Oslo Gardermoen

Wed 2/11

11:50 am-10:58 pm

2 stops18h 08m

$529

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Thu 2/5

3:31 pm-11:50 am

2 stops13h 19m

Oslo Gardermoen

Thu 2/12

6:30 am-5:42 pm

2 stops18h 12m

$532

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 4/12

11:14 am-4:35 pm

2 stops22h 21m

Oslo Gardermoen

Sat 4/18

12:50 pm-11:24 pm

2 stops17h 34m

$592

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 4/12

3:30 pm-3:35 pm

1 stop17h 05m

Oslo Gardermoen

Sat 4/18

1:05 pm-1:25 pm

1 stop31h 20m

$595

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 4/12

7:45 am-3:35 pm

2 stops24h 50m

Oslo Gardermoen

Sat 4/18

9:55 am-1:25 pm

1 stop34h 30m

$599

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 2/23

6:25 am-5:40 pm

2 stops28h 15m

Oslo Gardermoen

Fri 2/27

6:15 am-5:45 pm

2 stops18h 30m

$608

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Sun 4/12

3:58 pm-2:30 pm

2 stops15h 32m

Oslo Sandefjord

Sat 4/18

6:00 am-11:38 pm

2 stops24h 38m

$7,571

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Oslo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between St. Louis and Oslo?

What is the cheapest month to fly to Oslo?

The month of November is, on average, the cheapest month to fly to Oslo from St. Louis, with most prices found around $617. If you’re not able to fly to Oslo in November, then March is your next best option. Flight prices from St. Louis to Oslo during March average around $649.

What is the cheapest day to depart on your flight to Oslo?

The cheapest day to depart on your flight to Oslo is on a Sunday when prices can be found for as low as $700. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Oslo for around $1,555.

What is the cheapest time of day to depart on your flight to Oslo?

Flying to Oslo from St. Louis at noon is the least expensive time of day to depart. momondo users have found prices as low as $928 when looking at flights departing at noon. Try not to purchase tickets in the evening because they tend to be around $1,471. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap St. Louis to Oslo flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Oslo

Fastest flight time	15h 05m
Direct flights	None

The fastest flight from St. Louis to Oslo takes 15h 05m

There are no direct flights from St. Louis to Oslo. There are no popular flight routes from St. Louis to Oslo.

Search flight deals

How far is Lambert-St Louis to Oslo by plane?
Oslo is 4297.5 mi away from Lambert-St Louis. In terms of flight time, this usually takes a little over 15h 05m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Oslo?
Prices for flights from Lambert-St Louis Airport to Oslo are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Oslo?
The number of operators available for flights from Lambert-St Louis Airport to Oslo is 5 as of December 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Oslo?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Oslo.
What documentation or ID do you need to fly to Oslo?
The travel and health documents you'll need for your trip to Oslo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Oslo

Compare and see reviews for airlines that fly from St. Louis to Oslo with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $581	Free Cancellation	Rating 6.8 7,644 reviews	Search Lufthansa flights
American Airlines	PriceFrom $586	Free Cancellation	Rating 7.2 11,053 reviews	Search American Airlines flights
Delta	PriceFrom $625	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
Air Canada	PriceFrom $657	Free Cancellation	Rating 7.1 10,552 reviews	Search Air Canada flights
United Airlines	PriceFrom $674	Free Cancellation	Rating 7.4 9,102 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Oslo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oslo from St. Louis.

Can I find flights from St. Louis to Oslo with flexible booking policies on momondo?

Yes. All flights to Oslo from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Oslo?

Once all potential St. Louis to Oslo flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Oslo right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Oslo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.