$208+ Cheap flights from Seattle (SEA) to Oslo
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Seattle to Oslo with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Oslo are usually found in November or January, booked 79 days in advance, depart on a Tuesday or Monday and return on a Saturday
Cheap flight deals from Seattle to Oslo
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Oslo (OS1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.
Round-trip from | $531 (Mytrip) |
|---|---|
One-way from | $208 (FlightHub) |
Popular in | June |
Cheapest in | November |
Average price | $862 |
Find flight deals from Seattle to Oslo
Cheapest flights from Seattle to OsloExplore the most affordable flight options available from Seattle to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Seattle to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Mytrip deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This British Airways deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Lufthansa deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Finnair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KLM deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Seattle to Oslo that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Sun 7/6
4:00 pm-10:05 pm
1 stop21h 05m
Oslo Gardermoen
Sun 7/13
8:55 pm-1:50 pm
1 stop25h 55m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Tue 7/15
3:45 pm-3:25 pm
1 stop14h 40m
Oslo Gardermoen
Wed 7/30
4:30 pm-8:40 pm
1 stop13h 10m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Tue 7/22
1:30 pm-4:15 pm
1 stop17h 45m
Oslo Gardermoen
Tue 8/26
7:45 am-11:40 pm
2 stops24h 55m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Mon 8/11
12:20 am-12:15 pm
2 stops26h 55m
Oslo Gardermoen
Thu 8/21
6:35 am-11:55 am
1 stop14h 20m
SeattleOslo
SEA - TRF
SEATRF
Seattle/Tacoma Intl
Sun 7/13
4:00 pm-12:35 pm
1 stop11h 35m
Oslo Sandefjord
Sun 7/27
7:20 pm-1:50 pm
1 stop27h 30m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Mon 7/21
5:35 pm-8:45 am
1 stop30h 10m
Oslo Gardermoen
Tue 8/26
6:30 am-4:00 pm
2 stops18h 30m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Thu 12/4
11:05 am-5:50 pm
2 stops21h 45m
Oslo Gardermoen
Mon 12/15
6:15 am-12:10 pm
1 stop14h 55m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Sun 8/10
5:40 pm-7:45 pm
1 stop17h 05m
Oslo Gardermoen
Sat 8/23
8:35 am-11:40 pm
2 stops24h 05m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Wed 10/15
7:55 am-10:40 am
2 stops17h 45m
Oslo Gardermoen
Mon 10/20
8:00 am-8:04 pm
2 stops21h 04m
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
Mon 8/11
1:45 pm-11:55 pm
2 stops25h 10m
Oslo Gardermoen
Mon 8/25
5:40 am-6:49 pm
2 stops22h 09m
Best time to book a flight from Seattle to Oslo
Have a flexible travel schedule? Discover the best time to fly to Oslo from Seattle with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Oslo
How far ahead should I book a flight from Seattle to Oslo?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Oslo. Price data was last updated on June 9, 2025.
The price you pay for your flight from Seattle to Oslo may vary depending on when you book. For the best chance of a lower fare, look to book 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Seattle to Oslo?
Currently, November is the cheapest month in which you can book a flight from Seattle to Oslo (average of $567). Flying from Seattle to Oslo in June is currently the most expensive (average of $1,004). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to OSL?
Find hourly flight availability from Seattle to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
It’s optimal to fly from Seattle to Oslo in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from Seattle to Oslo?
Use this chart to determine the cheapest time to fly round-trip from Seattle to Oslo. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Seattle to Oslo flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Oslo by month
Plan your trip to Oslo by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Oslo ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo when rainfall is around 1.6 in.
Temperature in Oslo by month
Plan your trip to Oslo by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Oslo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).
Reviews of airlines servicing Oslo
Get insights into the airlines that provide service to Oslo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oslo. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Seattle to Oslo by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Seattle to Oslo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Oslo
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Seattle to Oslo
Discover the top 10 airlines that operate flights from Seattle to Oslo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$424 | Average$632 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$475 | Average$677 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$484 | Average$716 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$527 | Average$844 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$564 | Average$800 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$569 | Average$670 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$569 | Average$815 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$570 | Average$836 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$578 | Average$694 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$593 | Average$878 | FlexibilityNo cancel fee | On-time76% |