$374 Cheap Icelandair flights from Seattle to Oslo (SEA to OSL)

Find The Best Day To Fly from Seattle to Oslo

Amazing Icelandair SEA to OSL Flight Deals

The cheapest flights to Gardermoen found within the past 7 days were $419 round trip and $374 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Nov 25 - Thu, Dec 4
SEA
Seattle
OSL
Oslo
$419 Roundtrip, found 16 hours ago
$419
Roundtrip
found 16 hours ago
Select Icelandair flight, departing Tue, Nov 25 from Seattle to Oslo, returning Thu, Dec 4, priced at $419 found 16 hours ago
Sat, Feb 21 - Thu, Feb 26
SEA
Seattle
OSL
Oslo
$419 Roundtrip, found 5 days ago
$419
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sat, Feb 21 from Seattle to Oslo, returning Thu, Feb 26, priced at $419 found 5 days ago
Wed, Apr 22 - Wed, Apr 29
SEA
Seattle
OSL
Oslo
$421 Roundtrip, found 6 days ago
$421
Roundtrip
found 6 days ago
Select Icelandair flight, departing Wed, Apr 22 from Seattle to Oslo, returning Wed, Apr 29, priced at $421 found 6 days ago
Mon, Dec 1 - Sun, Dec 7
SEA
Seattle
OSL
Oslo
$433 Roundtrip, found 5 days ago
$433
Roundtrip
found 5 days ago
Select Icelandair flight, departing Mon, Dec 1 from Seattle to Oslo, returning Sun, Dec 7, priced at $433 found 5 days ago
Sat, May 2 - Thu, May 7
SEA
Seattle
OSL
Oslo
$433 Roundtrip, found 14 hours ago
$433
Roundtrip
found 14 hours ago
Select Icelandair flight, departing Sat, May 2 from Seattle to Oslo, returning Thu, May 7, priced at $433 found 14 hours ago
Fri, May 1 - Sat, May 16
SEA
Seattle
OSL
Oslo
$439 Roundtrip, found 3 days ago
$439
Roundtrip
found 3 days ago
Select Icelandair flight, departing Fri, May 1 from Seattle to Oslo, returning Sat, May 16, priced at $439 found 3 days ago

OSL From SEA Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
LUX Hotel Apartments Lillestrøm

LUX Hotel Apartments Lillestrøm

2 out of 5
Price was $1,135, price is now $909 per person
$909
per person
Nov 20 - Nov 26
found 9 hours ago
Roundtrip non-stop flight included
Seattle (SEA) to Oslo (OSL)
First Hotel Millennium

First Hotel Millennium

3 out of 5
Price was $1,524, price is now $1,192 per person
$1,192
per person
Nov 20 - Nov 26
found 9 hours ago
Roundtrip non-stop flight included
Seattle (SEA) to Oslo (OSL)
Farris Bad

Farris Bad

4 out of 5
Price was $2,035, price is now $1,598 per person
$1,598
per person
Nov 20 - Nov 26
found 9 hours ago
Roundtrip non-stop flight included
Seattle (SEA) to Oslo (OSL)
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Frequently asked questions

Can I catch a flight from SEA to OSL right now?
For any current OSL travel advice and quarantine requirements, visit our Covid-19 Travel Advisor. Check before you arrange your flight, so you don't get caught up.
What terminal is Icelandair at Sea-Tac Airport?
Check your ticket to find out which Sea-Tac Airport terminal you'll be taking off from on your way to Oslo Gardermoen Airport with Icelandair. If you can't find the details on there, contact your airline.
Are there Icelandair non-stop flights from SEA to OSL?
If you want to fly with Icelandair from SEA to Gardermoen Airport (OSL), you'll have to make a stopover. While you're waiting for your connection, take the opportunity to grab a refreshment or explore the airport shops.
How long is an Icelandair flight from SEA to OSL?
If weather conditions are favorable and there aren't any delays, your Icelandair flight will take you from SEA to OSL in approximately 10 hours and 25 minutes. As it's a long flight, take the advice of other savvy travelers and get a good night's shut-eye before you fly out. Drinking water regularly while you're in the air is another tip worth taking on board.
How many direct and indirect flights does Icelandair fly from SEA to OSL?
Approximately 7 Icelandair flights service the route between SEA and OSL every week.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Gardermoen Airport (OSL), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best Icelandair flight from Seattle SEA to Oslo OSL 

To find the best deals on flights to Seattle from Oslo with Icelandair, just enter your travel dates, filter by Icelandair, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Seattle SEA to Oslo OSL with Icelandair 

If you’re planning a round trip, booking return flights with Icelandair is usually the most cost-effective option. With airfares ranging from $419 to $439, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Icelandair flights from Seattle SEA to Oslo OSL 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Icelandair flight from Seattle to Oslo costs from $374. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Oslo OSL from  Seattle SEA with Icelandair 

To find a cheap Icelandair flight from Seattle SEA to Oslo OSL, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Icelandair flights from Seattle SEA to Oslo OSL 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from Seattle SEA to Oslo OSL with Icelandair 

If you’re keen to be on Oslo soil fast, don’t waste time with a stopover—filter your search results to show direct Icelandair flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Icelandair flights from Seattle SEA to Oslo OSL 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Oslo OSL from  Seattle SEA with Icelandair on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Icelandair Airports
Hop on a(n) Icelandair flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
KEFISLKeflavik Intl.23
SEAUSASeattle - Tacoma Intl.3
TPAUSATampa Intl.2
CPHDNKKastrup2
SFOUSASan Francisco Intl.2
LAXUSALos Angeles Intl.2
MCOUSAOrlando Intl.2
HELFINVantaa2
LHRGBRHeathrow2
ORDUSAO'Hare Intl.1

Travelers ❤️ these 🏨 after their flight to Oslo

Radisson Blu Airport Hotel, Oslo Gardermoen

Radisson Blu Airport Hotel, Oslo Gardermoen

4 out of 5
Hotelveien, Gardermoen, Ullensaker
This smoke-free hotel features 2 restaurants, a bar/lounge, and A 24-hour gym. Traveling on business? Take advantage of the business center and free WiFi in ...
8.8/10 Excellent! (4,152 reviews)
Just outstanding. Very nice for business meetings. Many nice meeting room for rent.

Reviewed on Oct 23, 2025

Radisson Blu Airport Hotel, Oslo Gardermoen
Radisson RED Hotel, Oslo Airport

Radisson RED Hotel, Oslo Airport

2.5 out of 5
Henrik Ibsens Veg, Gardemoen, Ullensaker, Viken
This hotel features a restaurant, a gym, and a bar/lounge. Traveling on business? Take advantage of the 52 conference rooms, free WiFi in public areas, and express ...
8.8/10 Excellent! (1,767 reviews)
Comfortable stay and option to create airline bag tags in reception is very convenient.

Reviewed on Oct 25, 2025

Radisson RED Hotel, Oslo Airport
Radisson Hotel & Conference Centre Oslo Airport

Radisson Hotel & Conference Centre Oslo Airport

4 out of 5
Henrik Ibsens v., Gardermoen, Building B, Ullensaker, Viken
This hotel features a restaurant, a gym, and a bar/lounge. Traveling on business? Take advantage of the business center and free WiFi in public areas. A garden, ...
8.6/10 Excellent! (2,257 reviews)
Helpful staff

Reviewed on Oct 13, 2025

Radisson Hotel & Conference Centre Oslo Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.