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Cheap flights from St. Louis to Oslo from $491

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Oslo departing on 5/16. 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.
Multiple Airlines Logo
7:09 pm - 5:55 pm
STL
-
OSL
15h 46m
2 stops
Multiple Airlines Logo
9:55 am - 8:25 pm
OSL
-
STL
41h 30m
2 stops
$747Multiple Airlines
Mon, May 4 - Mon, May 11
United Airlines Logo
5:32 pm - 5:55 pm
STL
-
OSL
17h 23m
2 stops
United Airlines Logo
6:45 am - 6:42 pm
OSL
-
STL
18h 57m
2 stops
$756United Airlines
Sun, Aug 23 - Thu, Aug 27
United Airlines Logo
8:45 am - 10:05 pm
STL
-
OSL
30h 20m
2 stops
United Airlines Logo
6:35 am - 1:25 pm
OSL
-
STL
13h 50m
1 stop
$761United Airlines
Wed, May 6 - Wed, May 13
American Airlines Logo
4:30 pm - 7:15 pm
STL
-
OSL
19h 45m
2 stops
American Airlines Logo
12:50 pm - 10:19 pm
OSL
-
STL
16h 29m
2 stops
$762American Airlines
Wed, May 6 - Wed, May 13
United Airlines Logo
3:30 pm - 12:20 pm
STL
-
OSL
13h 50m
1 stop
United Airlines Logo
6:45 am - 6:42 pm
OSL
-
STL
18h 57m
2 stops
$763United Airlines
Sun, Aug 23 - Thu, Aug 27
American Airlines Logo
9:35 pm - 11:25 pm
STL
-
OSL
18h 50m
1 stop
American Airlines Logo
7:45 am - 7:33 pm
OSL
-
STL
18h 48m
2 stops
$767American Airlines
Wed, Apr 29 - Tue, May 5
Finnair Logo
5:21 pm - 7:45 pm
STL
-
OSL
19h 24m
2 stops
Finnair Logo
8:30 pm - 7:30 pm
OSL
-
STL
30h 00m
2 stops
$780Finnair
Mon, May 4 - Mon, May 11
KLM Logo
5:35 pm - 2:30 pm
STL
-
TRF
13h 55m
2 stops
KLM Logo
6:00 am - 5:05 pm
TRF
-
STL
18h 05m
2 stops
$1,123KLM
Wed, May 6 - Wed, May 13
Scandinavian Airlines Logo
3:42 pm - 12:25 am
STL
-
TRF
25h 43m
2 stops
Scandinavian Airlines Logo
3:05 pm - 11:37 pm
TRF
-
STL
39h 32m
2 stops
$1,205Scandinavian Airlines
Sat, Aug 22 - Wed, Aug 26
Scandinavian Airlines Logo
11:42 am - 2:30 pm
STL
-
TRF
19h 48m
2 stops
Scandinavian Airlines Logo
6:00 am - 9:29 pm
TRF
-
STL
22h 29m
2 stops
$1,471Scandinavian Airlines
Sat, May 2 - Sat, May 9

United Airlines flights from St. Louis to Oslo

Our best United Airlines deals on St. Louis to Oslo flight tickets
United Airlines
Aug 23
STL5:32 pmLambert-St Louis
17h 23m
2 stops
OSL5:55 pmOslo Gardermoen
Aug 27
OSL6:45 amOslo Gardermoen
18h 57m
2 stops
STL6:42 pmLambert-St Louis
$756
United Airlines
May 6
STL8:45 amLambert-St Louis
30h 20m
2 stops
OSL10:05 pmOslo Gardermoen
May 13
OSL6:35 amOslo Gardermoen
13h 50m
1 stop
STL1:25 pmLambert-St Louis
$761
United Airlines
Aug 23
STL3:30 pmLambert-St Louis
13h 50m
1 stop
OSL12:20 pmOslo Gardermoen
Aug 27
OSL6:45 amOslo Gardermoen
18h 57m
2 stops
STL6:42 pmLambert-St Louis
$763

American Airlines flights from St. Louis to Oslo

Our best American Airlines deals on St. Louis to Oslo flight tickets
American Airlines
May 6
STL4:30 pmLambert-St Louis
19h 45m
2 stops
OSL7:15 pmOslo Gardermoen
May 13
OSL12:50 pmOslo Gardermoen
16h 29m
2 stops
STL10:19 pmLambert-St Louis
$762
American Airlines
Apr 29
STL9:35 pmLambert-St Louis
18h 50m
1 stop
OSL11:25 pmOslo Gardermoen
May 5
OSL7:45 amOslo Gardermoen
18h 48m
2 stops
STL7:33 pmLambert-St Louis
$767
American Airlines
May 5
STL5:21 pmLambert-St Louis
16h 04m
2 stops
OSL4:25 pmOslo Gardermoen
May 10
OSL12:50 pmOslo Gardermoen
16h 29m
2 stops
STL10:19 pmLambert-St Louis
$811

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 March 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

Cheapest round-trip

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 5/4

7:09 pm-5:55 pm

2 stops15h 46m

Oslo Gardermoen

Mon 5/11

9:55 am-8:25 pm

2 stops41h 30m

$747

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/23

5:32 pm-5:55 pm

2 stops17h 23m

Oslo Gardermoen

Thu 8/27

6:45 am-6:42 pm

2 stops18h 57m

$756

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 5/6

8:45 am-10:05 pm

2 stops30h 20m

Oslo Gardermoen

Wed 5/13

6:35 am-1:25 pm

1 stop13h 50m

$761

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 5/6

4:30 pm-7:15 pm

2 stops19h 45m

Oslo Gardermoen

Wed 5/13

12:50 pm-10:19 pm

2 stops16h 29m

$762

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Sun 8/23

3:30 pm-12:20 pm

1 stop13h 50m

Oslo Gardermoen

Thu 8/27

6:45 am-6:42 pm

2 stops18h 57m

$763

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Wed 4/29

9:35 pm-11:25 pm

1 stop18h 50m

Oslo Gardermoen

Tue 5/5

7:45 am-7:33 pm

2 stops18h 48m

$767

St. LouisOslo

STL - OSL

STLOSL

Lambert-St Louis

Mon 5/4

5:21 pm-7:45 pm

2 stops19h 24m

Oslo Gardermoen

Mon 5/11

8:30 pm-7:30 pm

2 stops30h 00m

$780
Quickest round-trip

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Wed 5/6

5:35 pm-2:30 pm

2 stops13h 55m

Oslo Sandefjord

Wed 5/13

6:00 am-5:05 pm

2 stops18h 05m

$1,123

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Sat 8/22

3:42 pm-12:25 am

2 stops25h 43m

Oslo Sandefjord

Wed 8/26

3:05 pm-11:37 pm

2 stops39h 32m

$1,205

St. LouisOslo

STL - TRF

STLTRF

Lambert-St Louis

Sat 5/2

11:42 am-2:30 pm

2 stops19h 48m

Oslo Sandefjord

Sat 5/9

6:00 am-9:29 pm

2 stops22h 29m

$1,471

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $636.

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

14h 37m

Direct flights

None
The fastest flight from St. Louis to Oslo takes 14h 37m
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 14h 37m.

  • 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
9,462 reviews
Search United Airlines flights
LufthansaPriceFrom $581Free CancellationRating
6.8
7,860 reviews
Search Lufthansa flights
DeltaPriceFrom $625Free CancellationRating
7.9
8,318 reviews
Search Delta flights
British AirwaysPriceFrom $656Free CancellationRating
6.7
7,813 reviews
Search British Airways flights
KLMPriceFrom $685Free CancellationRating
7.8
1,477 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