Cheap flights from St. Louis to Oslo from $509
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 9/17. 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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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 January is, on average, the cheapest month to fly to Oslo from St. Louis, with most prices found around $610. If you’re not able to fly to Oslo in January, 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 airline that flies from Lambert-St Louis to Oslo?
American Airlines, British Airways, and Lufthansa are the most popular carriers operating from Lambert-St Louis to Oslo
What airlines fly to Oslo?
Delta, United Airlines and Lufthansa 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 35% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 6 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.
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
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 10m.
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 6 as of July 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 | ||
|---|---|---|---|---|---|
| PriceFrom $586 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $593 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $649 | Free Cancellation | Rating 7.8 1,367 reviews | |||
| PriceFrom $659 | Free Cancellation | Rating 7.1 9,681 reviews | |||
| PriceFrom $676 | Free Cancellation | Rating 8.0 7,982 reviews | |||
| PriceFrom $765 | Free Cancellation | Rating 6.8 7,207 reviews |
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.