Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to Oslo
The cheapest flights right now
Seattle – Oslo
Outbound – Nov 22, 2026
1 stop
14h 15m FRA
Return – Dec 6, 2026
1 stop
14h 45m FRA
$658
yesterday
Seattle – Oslo
Outbound – Nov 23, 2026
1 stop
14h 15m FRA
Return – Dec 7, 2026
1 stop
14h 45m FRA
$518
2 days ago
Seattle – Oslo
Outbound – Nov 22, 2026
1 stop
14h 15m FRA
Return – Dec 6, 2026
1 stop
14h 45m FRA
$525
yesterday
Seattle – Oslo
Outbound – Nov 23, 2026
1 stop
14h 15m FRA
Return – Dec 7, 2026
1 stop
14h 45m FRA
$521
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$432
Average price of a round trip
$512
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
18h45
A flight from Seattle to Oslo takes on average 18h45.
Best time
September
According to user searches, the ideal month to go to Oslo is September.
Tips for finding a cheap flight from Seattle to Oslo
Check out our tips for booking your flight to Oslo (Norway) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is November, with an average flight ticket price of $471 (calculation over the last two years). The most touristic season corresponds to the months of October, November and January.
For the cheapest flights, it is advisable to buy your ticket at least 49 days before the departure date.
The airline offering the cheapest flight tickets is Icelandair. A ticket from the airline Icelandair to Oslo costs on average $485.
The airlines that offer the most flights are .
Price of flight tickets from Seattle to Oslo
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $432 to $712
- The average price of a flight ticket is about $512
- Prices are lowest for stays in the month of November
- The month in which booking a ticket is cheaper is: October
info departure city :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, the temperature is on average 15°C, with a minimum of 10°C and a maximum of 23°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
destination info :
Oslo, Norway
airports :
Fornebu (FBU)
Gardermoen (GEN)
Oslo Gardermoen Airport (OSL)
Torp-Sandefjord Airport (TRF)
local time :
Oslo is in the country Norway, the time zone is [[timezone]]. In Oslo, it is currently {toLocalTime}, the temperature is on average 8°C, with a minimum of 4°C and a maximum of 13°C.
The city of Oslo (OSL) has 4 airport(s): Fornebu, Gardermoen, Oslo Gardermoen and Torp-Sandefjord
Useful info about Oslo
What is the least touristic period to go to Oslo?
If you want to visit Oslo during the least touristic period, choose the month of September.
What is the most popular time to travel to Oslo?
In Oslo, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Seattle to Oslo?
According to our data, it is recommended to book your flight 49 days before your departure. If you book your flight ticket 8 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Seattle to Oslo is Friday.
What are the arrival and destination airports when traveling between Seattle and Oslo?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at Oslo Gardermoen.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Seattle to Oslo?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Seattle and Oslo?
In summer, the average temperature is 15°C in Oslo and 18°C in Seattle. The average rainfall in summer is 125 mm in Oslo and 38 mm in Seattle. In summer, it is warmer in Seattle and it rains less in Seattle. In winter, it is colder in Seattle and it rains more in Seattle.
