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Cheap flights from St. Louis to Oslo from $568

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Oslo departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:17 am - 5:40 pm
STL
-
OSL
27h 23m
2 stops
United Airlines Logo
6:55 am - 8:25 am
OSL
-
STL
32h 30m
2 stops
$568United Airlines
Sun, Mar 22 - Tue, Mar 31
United Airlines Logo
9:23 am - 5:15 pm
STL
-
OSL
24h 52m
2 stops
United Airlines Logo
6:25 am - 2:02 pm
OSL
-
STL
38h 37m
2 stops
$591United Airlines
Sun, Aug 16 - Sun, Aug 23
American Airlines Logo
8:03 pm - 7:15 pm
STL
-
OSL
16h 12m
2 stops
American Airlines Logo
12:50 pm - 10:17 pm
OSL
-
STL
16h 27m
2 stops
$592American Airlines
Wed, Apr 8 - Wed, Apr 15
Delta Logo
5:25 pm - 8:40 pm
STL
-
OSL
20h 15m
2 stops
Delta Logo
6:30 am - 4:50 pm
OSL
-
STL
17h 20m
2 stops
$593Delta
Tue, Apr 7 - Tue, Apr 14
Lufthansa Logo
3:30 pm - 6:25 pm
STL
-
OSL
19h 55m
1 stop
Lufthansa Logo
6:45 pm - 1:25 pm
OSL
-
STL
25h 40m
2 stops
$595Lufthansa
Sun, Aug 16 - Sun, Aug 23
United Airlines Logo
3:30 pm - 6:25 pm
STL
-
OSL
19h 55m
1 stop
United Airlines Logo
9:55 am - 10:06 pm
OSL
-
STL
19h 11m
2 stops
$600United Airlines
Sun, Aug 16 - Sat, Aug 22
Lufthansa Logo
4:50 pm - 1:05 pm
STL
-
OSL
14h 15m
1 stop
Lufthansa Logo
9:55 am - 8:25 am
OSL
-
STL
29h 30m
2 stops
$602Lufthansa
Sun, Mar 22 - Tue, Mar 31
Multiple Airlines Logo
6:00 am - 4:35 pm
STL
-
OSL
27h 35m
2 stops
Multiple Airlines Logo
8:30 pm - 7:30 pm
OSL
-
STL
30h 00m
2 stops
$607Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
Lufthansa Logo
4:50 pm - 3:20 pm
STL
-
OSL
16h 30m
1 stop
Lufthansa Logo
1:10 pm - 1:25 pm
OSL
-
STL
31h 15m
1 stop
$613Lufthansa
Sun, Mar 22 - Tue, Mar 31
Multiple Airlines Logo
1:39 pm - 9:10 pm
STL
-
TRF
24h 31m
3 stops
Multiple Airlines Logo
6:25 pm - 2:29 pm
TRF
-
STL
27h 04m
3 stops
$1,016Multiple Airlines
Wed, Apr 8 - Wed, Apr 15

United Airlines flights from St. Louis to Oslo

Our best United Airlines deals on St. Louis to Oslo flight tickets
United Airlines
Mar 22
STL8:17 amLambert-St Louis
27h 23m
2 stops
OSL5:40 pmOslo Gardermoen
Mar 31
OSL6:55 amOslo Gardermoen
32h 30m
2 stops
STL8:25 amLambert-St Louis
$568
United Airlines
Aug 16
STL9:23 amLambert-St Louis
24h 52m
2 stops
OSL5:15 pmOslo Gardermoen
Aug 23
OSL6:25 amOslo Gardermoen
38h 37m
2 stops
STL2:02 pmLambert-St Louis
$591
United Airlines
Aug 16
STL3:30 pmLambert-St Louis
19h 55m
1 stop
OSL6:25 pmOslo Gardermoen
Aug 22
OSL9:55 amOslo Gardermoen
19h 11m
2 stops
STL10:06 pmLambert-St Louis
$600

British Airways flights from St. Louis to Oslo

Our best British Airways deals on St. Louis to Oslo flight tickets
British Airways
Aug 15
STL8:00 pmLambert-St Louis
37h 15m
2 stops
OSL4:15 pmOslo Gardermoen
Aug 29
OSL5:10 pmOslo Gardermoen
33h 20m
1 stop
STL7:30 pmLambert-St Louis
$725
British Airways
Jul 5
STL8:15 amLambert-St Louis
32h 25m
2 stops
OSL11:40 pmOslo Gardermoen
Jul 14
OSL7:45 amOslo Gardermoen
20h 43m
2 stops
STL9:28 pmLambert-St Louis
$831
British Airways
Jul 7
STL7:49 pmLambert-St Louis
31h 56m
2 stops
OSL10:45 amOslo Gardermoen
Jul 14
OSL7:30 pmOslo Gardermoen
31h 00m
1 stop
STL7:30 pmLambert-St Louis
$842

momondo 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, momondo users made 832,500 searches. Data last updated February 23, 2026.
Use the filters below to find and compare flights from St. Louis to Oslo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 3/22

8:17 am-5:40 pm

2 stops27h 23m

Oslo Gardermoen

Tue 3/31

6:55 am-8:25 am

2 stops32h 30m

$568

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/16

9:23 am-5:15 pm

2 stops24h 52m

Oslo Gardermoen

Sun 8/23

6:25 am-2:02 pm

2 stops38h 37m

$591

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 4/8

8:03 pm-7:15 pm

2 stops16h 12m

Oslo Gardermoen

Wed 4/15

12:50 pm-10:17 pm

2 stops16h 27m

$592

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Tue 4/7

5:25 pm-8:40 pm

2 stops20h 15m

Oslo Gardermoen

Tue 4/14

6:30 am-4:50 pm

2 stops17h 20m

$593

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/16

3:30 pm-6:25 pm

1 stop19h 55m

Oslo Gardermoen

Sun 8/23

6:45 pm-1:25 pm

2 stops25h 40m

$595

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/16

3:30 pm-6:25 pm

1 stop19h 55m

Oslo Gardermoen

Sat 8/22

9:55 am-10:06 pm

2 stops19h 11m

$600

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 3/22

4:50 pm-1:05 pm

1 stop14h 15m

Oslo Gardermoen

Tue 3/31

9:55 am-8:25 am

2 stops29h 30m

$602

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 4/1

6:00 am-4:35 pm

2 stops27h 35m

Oslo Gardermoen

Mon 4/6

8:30 pm-7:30 pm

2 stops30h 00m

$607

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 3/22

4:50 pm-3:20 pm

1 stop16h 30m

Oslo Gardermoen

Tue 3/31

1:10 pm-1:25 pm

1 stop31h 15m

$613

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Wed 4/8

1:39 pm-9:10 pm

3 stops24h 31m

Oslo Sandefjord

Wed 4/15

6:25 pm-2:29 pm

3 stops27h 04m

$1,016

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Oslo from

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

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 April is your next best option. Flight prices from St. Louis to Oslo during April average around $639.

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 48m

Direct flights

None
The fastest flight from St. Louis to Oslo takes 15h 48m
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 48m.

  • 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?

  • 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
United AirlinesPriceFrom $542Free CancellationRating
7.4
9,342 reviews
Search United Airlines flights
LufthansaPriceFrom $589Free CancellationRating
6.8
7,803 reviews
Search Lufthansa flights
DeltaPriceFrom $625Free CancellationRating
7.9
8,236 reviews
Search Delta flights
British AirwaysPriceFrom $656Free CancellationRating
6.7
7,759 reviews
Search British Airways flights
KLMPriceFrom $685Free CancellationRating
7.7
1,458 reviews
Search KLM 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.

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Find better results for your trip to Norway

Fly into one of these airports located in Oslo

Airports listed have a maximum distance of 53.1 mi from Oslo
Oslo Gardermoen Airport
Oslo Sandefjord Airport