Are direct flights from St. Louis to Oslo always the best option?

Direct flights are often convenient, saving time and avoiding layovers. However, they may not always be the cheapest option. Flights with one or more connections can sometimes offer lower fares, so it's worth comparing.

Can flexible travel dates help on St. Louis to Oslo flights?

Absolutely, being flexible with your travel dates can significantly impact flight prices. Mid-week travel or flying during off-peak seasons often results in lower fares. Even shifting your departure or return by a day or two may yield savings.

What extra costs should I check before booking St. Louis to Oslo flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget.

Flights From St. Louis

To Oslo

Cheap Flights from St. Louis to Oslo

Browse current best options from St. Louis. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

St. Louis

RatePunk searches hundreds of travel sites at once for deals on flights to Oslo

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from St. Louis to Oslo

Explore current cheapest deals departing from St. Louis to Oslo

2026-08-17 – 2026-09-16
STL - Oslo
75% AI deal score
$718
$708
Round trip
2026-08-17 – 2026-09-09
STL - Oslo
75% AI deal score
$723
$719
Round trip
2026-08-17 – 2026-09-13
STL - Oslo
74% AI deal score
$718
$720
Round trip
2026-12-02 – 2026-12-04
STL - Oslo
79% AI deal score
$869
$730
Round trip
2026-08-10 – 2026-08-25
STL - Oslo
73% AI deal score
$744
$741
Round trip
2026-11-18 – 2026-11-25
STL - Oslo
77% AI deal score
$748
$757
Round trip
2026-12-09 – 2026-12-16
STL - Oslo
81% AI deal score
$854
$757
Round trip
2026-08-10 – 2026-08-26
STL - Oslo
74% AI deal score
$740
$765
Round trip
2026-11-15 – 2026-11-24
STL - Oslo
76% AI deal score
$747
$779
Round trip
2026-08-08 – 2026-08-27
STL - Oslo
73% AI deal score
$728
$781
Round trip

St. Louis to Oslo: Overview

Insights for flights from St. Louis to Oslo

A typical journey from St. Louis to Oslo takes about 46h 42m, including connections. This is a long-haul route, covering a distance of 6919 km. Given that most itineraries connect at least once, this extended travel time reflects the need for multiple layovers to reach Oslo from St. Louis.

For travelers seeking cheap flights from St. Louis to Oslo, fares typically range from $932–$1211, with a median of $1051. Right now, fares are near the typical level. However, 0% of recent fares were classified as a good price, indicating that finding exceptional value can be challenging. Deals are infrequent, so a price alert helps in securing better fares.

When is the cheapest time to fly from St. Louis to Oslo? The most affordable month to fly is April, with a median fare of $901. Following closely is May, with a median fare of $1022. March also offers competitive pricing, with a median fare of $1071.

How much is a round trip from St. Louis to Oslo

Regular price: $706 - $1,059

Prices for flights from St. Louis to Oslo are currently within the regular range.

The regular price range for this route is between $706 and $1059. The current lowest deal is $726, available on Kayak for travel from Jan 31-Feb 3.

now $726

Low $706

High $1,059

The cheapest time to fly from St. Louis to Oslo

The cheapest month to fly from St. Louis to Oslo is April, with a median price of $901. The most expensive month is July, with a median price of $1733. Prices are generally lower from March to May.

April

Cheapest

Flights from $901

July

Most Expensive

Flights from $1,733

Mar

Apr

May

Jun

Jul

Direct flights from St. Louis to Oslo

Icelandair

Southern Airways

United Airlines

Frontier Airlines

Last-minute flights going from St. Louis to Oslo

Mon, Jul 27

⌛ Last-Minute

STL - Oslo

St. Louis (STL) - Oslo (OSL)

United Airlines

$827

$1,120

One-way

Mon, Jul 27

⌛ Last-Minute

STL - Oslo

St. Louis (STL) - Oslo (OSL)

$962

$1,207

One-way

Mon, Jul 27

⌛ Last-Minute

STL - Oslo

St. Louis (STL) - Oslo (OSL)

Lufthansa

$949

$2,128

One-way

Fri, Aug 7

⌛ Last-Minute

STL - Oslo

St. Louis (STL) - Oslo (OSL)

Frontier Airlines

$770

$961

One-way

Mon, Aug 10

⌛ Last-Minute

STL - Oslo

St. Louis (STL) - Oslo (OSL)

Frontier Airlines

$746

$777

One-way

Mon, Aug 10

⌛ Last-Minute

STL - Oslo

St. Louis (STL) - Oslo (OSL)

Lufthansa

$742

$820

One-way

Biggest price drops on these dates for flights from St. Louis to Oslo

2 nights

Dec 2 - Dec 4

$854 → $735

14%

2 nights

Dec 1 - Dec 3

$854 → $740

13%

6 nights

Dec 3 - Dec 9

$840 → $796

13 nights

Oct 21 - Nov 3

$728 → $725

Popular Airports to fly from St. Louis to Oslo

St. Louis - Oslo route insights

💸 Price insights

Recent fares near the typical level

Recent fares from St. Louis to Oslo are near the typical level at $726.

📅 Best time to fly

April is historically cheapest

Historically, April is the cheapest month to fly from St. Louis to Oslo, with a median price of $901.

⏱️ Flight duration

Long-haul flights, 46h 42m duration

Flights from St. Louis to Oslo are long-haul, with a median duration of 46 hours 42 minutes.

✈️ Airlines & availability

Connecting flights dominant

This route is connecting-dominant, with a median of 2 stopovers on connecting flights.

🏆 Airline highlight

Icelandair offers connecting flights

Icelandair has offered 29 connecting deals from St. Louis to Oslo recently.

🎯 Booking tip

Deals are rare for this route

Deals for flights from St. Louis to Oslo are rare, appearing infrequently.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International is often the cheapest option for flights from St. Louis to Oslo.

📍 ~20 km from St. Louis (reachable by car or train)

💸 Flights from ~$737

Oslo main airports to arrive at

Oslo Airport, Gardermoen (OSL)

Cheapest

Oslo Airport, Gardermoen is a primary arrival airport for flights from St. Louis to Oslo.

📍 ~35 km from city center (reachable by car or train)

💸 Flights from ~$737

Airports nearby Oslo used as alternative

Oslo Airport, Gardermoen (OSL)

Cheapest

Oslo Airport, Gardermoen is the primary international hub and offers the widest range of destinations.

📍 ~30 km from Oslo (reachable by car, train)

💸 Flights from ~$737

Business & First Class Flight Deals to Oslo

89% AI deal score

$5,370

$3,839

Save $1,531

Frequently Asked Questions About Flights to Oslo

Finding affordable flights often involves comparing prices across various platforms. Using flight comparison sites can help you see different options side-by-side. Consider being flexible with your travel dates to potentially uncover better deals.

Booking flights in advance can often lead to lower prices, though the ideal booking window can vary. It's usually beneficial to monitor price trends over time. Setting up price alerts may help you catch a good deal when it appears.

Yes, comparing nearby airports at both your origin and destination can sometimes reveal more economical flight options. While it may add to travel time, the potential savings can be significant. Always factor in ground transportation costs and convenience.

St. Louis to Oslo: Overview

Insights for flights from St. Louis to Oslo

How much is a round trip from St. Louis to Oslo

Regular price: $706 - $1,059

Prices for flights from St. Louis to Oslo are currently within the regular range.

The regular price range for this route is between $706 and $1059. The current lowest deal is $726, available on Kayak for travel from Jan 31-Feb 3.

now $726

Low $706

High $1,059

The cheapest time to fly from St. Louis to Oslo

The cheapest month to fly from St. Louis to Oslo is April, with a median price of $901. The most expensive month is July, with a median price of $1733. Prices are generally lower from March to May.

April

Cheapest

Flights from $901

July

Most Expensive

Flights from $1,733

Mar

Apr

May

Jun

Jul