STL - OSL

$305 Find Cheap Flights from St. Louis to Oslo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Oslo departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Oslo Gardermoen Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Oslo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Oslo, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$594
Typical prices: $680-$817
British Airways
Sun 8/16Tue 8/25
STL - OSL • 1 stop
Cheapest one-way
$305
Multiple Airlines
Mon 5/18
STL - OSL • 3 stops
Top airlines
Cheapest • from $594 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Oslo. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $933 (round-trip)
Shortest trip • 14h 57m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Oslo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Oslo (STL-OSL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Oslo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Oslo

Sun, Aug 16 - Tue, Aug 25
British Airways Logo
9:40 pm - 10:30 am
STL
-
OSL
29h 50m
1 stop
British Airways Logo
7:45 am - 7:30 pm
OSL
-
STL
18h 45m
1 stop
$594British Airways
Sun, Aug 16 - Tue, Aug 25
Finnair Logo
9:40 pm - 12:05 pm
STL
-
OSL
31h 25m
2 stops
Finnair Logo
8:30 pm - 6:29 pm
OSL
-
STL
28h 59m
2 stops
$607Finnair
Sun, Aug 16 - Tue, Aug 25
Multiple Airlines Logo
9:40 pm - 12:05 pm
STL
-
OSL
31h 25m
2 stops
Multiple Airlines Logo
11:15 am - 7:30 pm
OSL
-
STL
15h 15m
1 stop
$626Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
6:55 pm - 3:35 pm
STL
-
OSL
37h 40m
2 stops
Multiple Airlines Logo
8:15 am - 8:19 pm
OSL
-
STL
19h 04m
2 stops
$644Multiple Airlines
Sun, Apr 19 - Tue, May 5
Delta Logo
9:59 am - 4:40 pm
STL
-
OSL
23h 41m
2 stops
Delta Logo
6:30 am - 4:42 pm
OSL
-
STL
17h 12m
2 stops
$659Delta
Tue, Apr 21 - Tue, Apr 28
KLM Logo
1:46 pm - 12:30 pm
STL
-
OSL
15h 44m
2 stops
KLM Logo
2:10 pm - 11:36 pm
OSL
-
STL
16h 26m
2 stops
$661KLM
Wed, Apr 22 - Wed, Apr 29
British Airways Logo
5:21 pm - 5:35 pm
STL
-
OSL
17h 14m
2 stops
British Airways Logo
7:45 am - 7:30 pm
OSL
-
STL
18h 45m
1 stop
$663British Airways
Wed, Apr 22 - Wed, Apr 29
Finnair Logo
5:21 pm - 4:35 pm
STL
-
OSL
16h 14m
2 stops
Finnair Logo
12:50 pm - 10:17 pm
OSL
-
STL
16h 27m
2 stops
$667Finnair
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
3:43 pm - 4:25 pm
STL
-
OSL
17h 42m
2 stops
Multiple Airlines Logo
7:45 am - 10:19 pm
OSL
-
STL
21h 34m
2 stops
$673Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
Finnair Logo
5:21 pm - 4:35 pm
STL
-
OSL
16h 14m
2 stops
Finnair Logo
8:30 pm - 7:30 pm
OSL
-
STL
30h 00m
2 stops
$680Finnair
Booking Insights

KAYAK's insights & trends for St. Louis to Oslo flights

Get data-powered insights and trends into flights from St. Louis to Oslo to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Oslo Gardermoen Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Oslo Gardermoen Airport departing in August.

What is the cheapest month to fly from St. Louis to Oslo Gardermoen Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Oslo Gardermoen Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Oslo Gardermoen Airport is November, where tickets cost $617 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,040 and $949 respectively.

Good to know

Low seasonJanuary
Cheapest flight$305
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from St. Louis to Oslo

When to book flights from St. Louis to Oslo

Are your dates flexible? Find out the best times to travel from St. Louis to Oslo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Oslo flights

  • What is the cheapest flight from St. Louis to Oslo Gardermoen Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Oslo Gardermoen Airport was $305 for a one-way ticket and $594 for a round-trip.

  • Do I need a passport to fly between St. Louis and Oslo?

    Yes, you’ll need a passport to travel to Oslo from St. Louis.

  • Which airports will I be using when flying from St. Louis to Oslo?

    St. Louis and Oslo are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Oslo Gardermoen.

  • Which aircraft models fly most regularly from St. Louis to Oslo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Oslo?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Oslo, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Oslo, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from St. Louis to Oslo are Delta and KLM. With an average price for the route of $884 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $711 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from St. Louis to Oslo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Oslo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Oslo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oslo from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Oslo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Oslo with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and OSL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Oslo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Oslo from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from St. Louis to Oslo

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Oslo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Oslo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8276 reviews
8.5Crew
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
Airline reviews

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

8.0 ExcellentMary, Mar 2026
LGA - MKE
Read more Delta reviews

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

The boarding process doesn't make sense since some people that will sit behind your rows are boarded before you and then they take up the luggage space above your head. I then have to wait for people to get off the plane before I can go back to get my luggage.

Good flight. Connector flight was delayed so made a short turnaround in Atlanta which was stressful. Otherwise, great crew, Staff in ATL was very informative about the delay and ensured people their connections were fine. Notified the ones that were not. Great communication.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

It was really nice journey i personally recommend klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Everything you need to know for your flight from St. Louis to Oslo

Information on your arrival and departure airports