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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
11 oct. — 18 oct.1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Oslo are usually found in October or November, booked 76 days in advance, depart on a Monday or Wednesday and return on a Monday
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 11 septiembre 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 11 septiembre 2025.
vie. 5/122:35 p.m.SEA - OSL
1 stop12h 00mIcelandair
mar. 9/121:10 p.m.OSL - SEA
1 stop12h 50mIcelandair
Deal found 11/9C$ 581
mar. 2/122:35 p.m.SEA - OSL
1 stop12h 00mIcelandair
jue. 11/121:10 p.m.OSL - SEA
1 stop12h 50mIcelandair
Deal found 11/9C$ 632
mié. 3/122:35 p.m.SEA - OSL
1 stop12h 00mIcelandair
dom. 7/129:30 p.m.OSL - SEA
1 stop28h 30mIcelandair
Deal found 10/9C$ 633
lun. 8/126:50 p.m.SEA - OSL
1 stop18h 50mBritish Airways
mar. 23/127:20 a.m.OSL - SEA
1 stop18h 35mBritish Airways
Deal found 10/9C$ 662
mar. 2/121:40 p.m.SEA - OSL
1 stop17h 40mDelta
lun. 15/129:25 a.m.OSL - SEA
1 stop35h 25mDelta
Deal found 11/9C$ 687
mar. 28/1011:25 a.m.SEA - OSL
2 stops20h 55mDelta
vie. 7/116:25 a.m.OSL - SEA
1 stop15h 55mDelta
Deal found 11/9C$ 691
mar. 2/121:40 p.m.SEA - OSL
1 stop17h 40mDelta
mié. 10/126:25 a.m.OSL - SEA
2 stops24h 56mDelta
Deal found 11/9C$ 700
jue. 4/122:35 p.m.SEA - OSL
1 stop12h 00mIcelandair
mar. 9/121:10 p.m.OSL - SEA
1 stop12h 50mIcelandair
Deal found 11/9C$ 701
lun. 8/122:05 p.m.SEA - OSL
1 stop17h 15mDelta
dom. 14/1212:40 p.m.OSL - SEA
1 stop32h 10mDelta
Deal found 11/9C$ 705
mié. 15/1012:45 p.m.SEA - OSL
2 stops19h 35mScandinavian Airlines
lun. 20/101:25 p.m.OSL - SEA
1 stop17h 57mScandinavian Airlines
Deal found 10/9C$ 708
sáb. 6/129:59 p.m.SEA - OSL
2 stops33h 21mDelta
lun. 15/129:25 a.m.OSL - SEA
1 stop35h 25mDelta
Deal found 11/9C$ 710
Best flights from Seattle to Oslo
Discover carefully curated flight deals from Seattle to Oslo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 11 septiembre 2025.
vie. 5/122:35 p.m.SEA - OSL
1 stop12h 00mIcelandair
mar. 9/121:10 p.m.OSL - SEA
1 stop12h 50mIcelandair
Deal found 11/9C$ 581
mié. 3/122:05 p.m.SEA - OSL
1 stop17h 15mDelta
mié. 10/126:25 a.m.OSL - SEA
2 stops22h 33mDelta
Deal found 11/9C$ 700
jue. 27/117:30 a.m.SEA - OSL
2 stops18h 45mScandinavian Airlines
mié. 10/1211:00 a.m.OSL - SEA
2 stops20h 22mScandinavian Airlines
Deal found 11/9C$ 705
mié. 3/122:35 p.m.SEA - OSL
1 stop12h 00mIcelandair
dom. 7/129:30 p.m.OSL - SEA
1 stop28h 30mIcelandair
Deal found 10/9C$ 633
lun. 8/1211:55 p.m.SEA - OSL
2 stops28h 55mDelta
mar. 23/129:25 a.m.OSL - SEA
1 stop35h 25mDelta
Deal found 10/9C$ 705
dom. 15/27:20 a.m.SEA - OSL
2 stops20h 50mScandinavian Airlines
vie. 20/38:00 a.m.OSL - SEA
2 stops22h 16mScandinavian Airlines
Deal found 10/9C$ 723
sáb. 14/29:55 p.m.SEA - OSL
2 stops25h 45mDelta
lun. 23/212:40 p.m.OSL - SEA
1 stop32h 00mDelta
Deal found 11/9C$ 712
lun. 16/27:20 a.m.SEA - OSL
2 stops20h 50mScandinavian Airlines
sáb. 21/210:00 a.m.OSL - SEA
2 stops21h 22mScandinavian Airlines
Deal found 11/9C$ 723
dom. 7/122:05 p.m.SEA - OSL
1 stop17h 15mDelta
mié. 10/1212:40 p.m.OSL - SEA
1 stop32h 10mDelta
Deal found 11/9C$ 722
dom. 15/27:20 a.m.SEA - OSL
2 stops18h 55mScandinavian Airlines
sáb. 21/28:00 a.m.OSL - SEA
2 stops23h 22mScandinavian Airlines
Deal found 11/9C$ 723
dom. 15/27:33 p.m.SEA - OSL
2 stops38h 17mDelta
dom. 22/39:25 a.m.OSL - SEA
1 stop35h 10mDelta
Deal found 10/9C$ 722
Last-minute flights from Seattle to Oslo
Discover last-minute flight deals from Seattle to Oslo. Data last updated 11 septiembre 2025 and is based on user searches.
mié. 24/97:10 a.m.SEA - OSL
2 stops18h 55mDelta
dom. 5/106:30 a.m.OSL - SEA
1 stop18h 35mDelta
Deal found 11/9C$ 804
lun. 29/97:10 a.m.SEA - OSL
2 stops18h 55mDelta
lun. 6/106:30 a.m.OSL - SEA
1 stop18h 35mDelta
Deal found 11/9C$ 734
mié. 1/106:00 a.m.SEA - OSL
2 stops17h 45mDelta
mié. 15/106:05 a.m.OSL - SEA
1 stop14h 10mDelta
Deal found 10/9C$ 732
mié. 1/101:57 p.m.SEA - OSL
2 stops19h 03mUnited Airlines
mié. 8/106:50 a.m.OSL - SEA
2 stops16h 26mUnited Airlines
Deal found 10/9C$ 813
jue. 9/101:30 p.m.SEA - OSL
1 stop13h 20mDelta
jue. 20/116:25 a.m.OSL - SEA
2 stops21h 15mDelta
Deal found 10/9C$ 769
mié. 15/1012:45 p.m.SEA - OSL
2 stops19h 35mScandinavian Airlines
lun. 20/101:25 p.m.OSL - SEA
1 stop17h 57mScandinavian Airlines
Deal found 10/9C$ 708
mié. 15/107:25 a.m.SEA - OSL
2 stops18h 40mDelta
lun. 20/109:20 a.m.OSL - SEA
2 stops20h 25mDelta
Deal found 11/9C$ 737
vie. 24/106:00 a.m.SEA - OSL
2 stops20h 50mDelta
lun. 10/116:25 a.m.OSL - SEA
1 stop15h 55mDelta
Deal found 10/9C$ 779
mar. 28/1011:25 a.m.SEA - OSL
2 stops20h 55mDelta
vie. 7/116:25 a.m.OSL - SEA
1 stop15h 55mDelta
Deal found 11/9C$ 691
One-way flights from Seattle to Oslo
Search for one-way flight options from Seattle to Oslo. Find affordable one-way fares based on user searches. Data last updated 11 septiembre 2025.
mié. 3/124:50 p.m.SEA - OSL
1 stop17h 00mDelta
Deal found 10/9C$ 538
mar. 23/121:35 p.m.SEA - OSL
2 stops40h 45mUnited Airlines
Deal found 10/9C$ 593
mar. 23/122:00 p.m.SEA - OSL
1 stop16h 40mMultiple Airlines
Deal found 10/9C$ 607
mié. 3/128:40 a.m.SEA - OSL
3 stops23h 50mUnited Airlines
Deal found 11/9C$ 843
mié. 8/108:00 a.m.SEA - OSL
4 stops39h 45mEthiopian Air
Deal found 11/9C$ 2,350
mar. 23/1211:15 p.m.SEA - OSL
4 stops47h 30mEthiopian Air
Deal found 10/9C$ 8,751
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 629,999 searches. Data last updated 11 septiembre 2025.
Use the filters below to find and compare flights from Seattle to Oslo that are best for you.
Fly from
Seattle
Fly to
Oslo
Route
Depart
Return
Price
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
vie. 5/12
2:35 p.m.-11:35 a.m.
1 stop12h 00m
Oslo Gardermoen
mar. 9/12
1:10 p.m.-5:00 p.m.
1 stop12h 50m
C$ 581
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
mié. 3/12
2:35 p.m.-11:35 a.m.
1 stop12h 00m
Oslo Gardermoen
dom. 7/12
9:30 p.m.-5:00 p.m.
1 stop28h 30m
C$ 633
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
mié. 3/12
2:05 p.m.-4:20 p.m.
1 stop17h 15m
Oslo Gardermoen
mié. 10/12
6:25 a.m.-7:58 p.m.
2 stops22h 33m
C$ 700
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
jue. 27/11
7:30 a.m.-11:15 a.m.
2 stops18h 45m
Oslo Gardermoen
mié. 10/12
11:00 a.m.-10:22 p.m.
2 stops20h 22m
C$ 705
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
lun. 8/12
11:55 p.m.-1:50 p.m.
2 stops28h 55m
Oslo Gardermoen
mar. 23/12
9:25 a.m.-11:50 a.m.
1 stop35h 25m
C$ 705
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
sáb. 14/2
9:55 p.m.-8:40 a.m.
2 stops25h 45m
Oslo Gardermoen
lun. 23/2
12:40 p.m.-11:40 a.m.
1 stop32h 00m
C$ 712
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
dom. 7/12
2:05 p.m.-4:20 p.m.
1 stop17h 15m
Oslo Gardermoen
mié. 10/12
12:40 p.m.-11:50 a.m.
1 stop32h 10m
C$ 722
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
dom. 15/2
7:33 p.m.-6:50 p.m.
2 stops38h 17m
Oslo Gardermoen
dom. 22/3
9:25 a.m.-12:35 p.m.
1 stop35h 10m
C$ 722
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
dom. 15/2
7:20 a.m.-1:10 p.m.
2 stops20h 50m
Oslo Gardermoen
vie. 20/3
8:00 a.m.-10:16 p.m.
2 stops22h 16m
C$ 723
SeattleOslo
SEA - OSL
SEAOSL
Seattle/Tacoma Intl
lun. 16/2
7:20 a.m.-1:10 p.m.
2 stops20h 50m
Oslo Gardermoen
sáb. 21/2
10:00 a.m.-10:22 p.m.
2 stops21h 22m
C$ 723
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/9
Showing 1-10 of 17 results
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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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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 29 August 2025.
To ensure you get the cheapest price possible for a flight from Seattle to Oslo, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Seattle to Oslo?
Currently, April is the cheapest month in which you can book a flight from Seattle to Oslo (average of C$ 666). Flying from Seattle to Oslo in June is currently the most expensive (average of C$ 949). 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 11 septiembre 2025.
It’s typically best to fly out from Seattle to Oslo in the afternoon. Doing so could potentially save you 32% on the flight price compared to flying in the morning, which is usually more expensive.
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 11 septiembre 2025.
Read reviews from past customers who have flown KLM,Scandinavian Airlines, andIcelandair
from Seattle to Oslo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
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.
What airport do you fly from for flights from Seattle to Oslo?
Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Oslo. 4 airlines have flights from Seattle/Tacoma Intl to Oslo on a regular basis. Booking flights from Seattle/Tacoma Intl to Oslo should not be difficult; the airport handles an average of 0 outbound flights to Oslo per day.
How long is the flight from Seattle to Oslo?
Airlines like Icelandair, Delta, and Scandinavian Airlines fly from Seattle to Oslo in about 12h. The time it takes to get you to your destination can typically vary by up to 6h 45m. The distance from Seattle to Oslo is about 7324 km. This flight may include one or multiple stops.
What are the cheapest airlines flying from Seattle to Oslo round-trip?
Cheapflights users have booked flights from Seattle to Oslo round-trip from C$ 596. Other airlines that can offer you cheap pricing are KLM, from C$ 597, and Scandinavian Airlines, from C$ 713. Icelandair is priced at 30% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for business class flights from Seattle to Oslo?
Yes. Cheapflights offers flight deals from Seattle to Oslo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to Oslo?
Currently, April is the cheapest month in which you can book a flight from Seattle to Oslo (average of C$ 666). Flying from Seattle to Oslo in June is currently the most expensive (average of C$ 949). 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.
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on 11 septiembre 2025.
Discover the top 4 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 629,999 searches. Data last updated 11 septiembre 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Seattle to Oslo?
Cheapflights helps you search for flights from Seattle to Oslo via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Oslo?
Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Oslo for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Seattle to Oslo with no change fees?
Yes, we can. To see specific flights from Seattle to Oslo with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Seattle to Oslo become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Oslo from Seattle today and book when prices fit your budget.
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