Flights from Seattle to Oslo
EuropeSeasonal (summer-heavy)

Cheap Flights from Seattle to Oslo

Track economy fares on the SEAOSL route and get alerts when prices drop.

From
Seattle
SEA
To
Oslo
OSL

Route Intelligence: SeattleOslo

Flight Duration

10 hr 30 min (1 Stop)

Price Guidance

A good deal is under $700 roundtrip. Standard fare is $1,000–$1,400+.

Peak Season

June to August

Top Airlines

Scandinavian Airlines (SAS), Icelandair, United Airlines

Booking Tip

Book 4-6 months in advance for summer travel, as fares rise sharply from May onward. Consider routing through Reykjavik on Icelandair or Copenhagen on SAS for competitive pricing.

Track SeattleOslo Fares

Set your target price and FlightKitten will scan this route twice daily. The instant economy fares drop below your budget, you'll get an email with the price, airline, and a direct booking link.

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Flying Business Class?

If you're considering business class on this route, BusinessClassSignal.com is a dedicated tool that tracks premium cabin fares. They alert you when business & first class prices drop — worth checking out if you fly up front.

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Other Routes to Oslo

More Destinations in Europe

Route Briefing: Seattle to Oslo

Seattle and Oslo share more than you might expect — both cities are defined by water, mountains, and a culture that genuinely loves the outdoors. That kinship makes this roughly ten-and-a-half-hour journey feel less like crossing an ocean and more like visiting a kindred spirit on the other side of the world.

Getting there requires one stop, with Scandinavian Airlines routing through Copenhagen and Icelandair offering the scenic option through Reykjavik — both are solid choices, and shopping between them is often how travelers land that sweet spot under $700 roundtrip. Standard fares typically run between $1,000 and $1,400, so the savings when you catch a deal are genuinely significant. The key is timing: book four to six months before a summer trip, because once May arrives, prices climb fast and don't look back. June through August is peak season for good reason — Oslo enjoys long, luminous days with the sun barely setting, and the entire city seems to exhale into the warmth.

Oslo rewards curious travelers immediately. The waterfront Aker Brygge district gives you that classic Nordic harbor energy — clean lines, open water, and excellent seafood. The Viking Ship Museum houses some of the best-preserved Viking vessels in the world, a genuinely jaw-dropping experience that no photograph quite prepares you for. The Vigeland Sculpture Park, filled with Gustav Vigeland's striking bronze and granite figures, is one of those rare attractions that earns every bit of its reputation. And if you venture even slightly outside the city, you're in fjord country — the Oslofjord itself is accessible without much effort at all.

From Oslo Airport Gardermoen, the Airport Express Train — known locally as Flytoget — runs frequently into Oslo Central Station and gets you there in roughly twenty minutes. It's fast, reliable, and takes the guesswork out of arrival day entirely.

One tip worth its weight: if you're flying Icelandair, seriously consider adding a stopover in Reykjavik at no extra airfare cost. Iceland's landscapes are unlike anything else on the planet, and turning a layover into a two or three-day detour essentially gives you two destinations for the price of one transatlantic ticket. For a Pacific Northwest traveler already comfortable with dramatic scenery, it's an almost unfair amount of beauty packed into a single trip.

Oslo isn't cheap once you arrive — Norway's cost of living is famously high — but the quality of what you get, from public spaces to food to sheer natural access, makes it feel worthwhile. Come in summer, book early, and let the midnight light do the rest.

How much are flights from Seattle to Oslo in 2026?

Flight prices from Seattle (SEA) to Oslo (OSL) vary significantly depending on the season, day of the week, and how far in advance you book. A good deal is under $700 roundtrip. Standard fare is $1,000–$1,400+. Popular carriers on this route include Scandinavian Airlines (SAS), Icelandair, United Airlines. FlightKitten eliminates the guesswork by monitoring 220+ airlines twice daily and alerting you the moment economy fares hit your target price.

How does FlightKitten track Seattle to Oslo fares?

FlightKitten scans over 220 airlines twice every day for economy fares on the SEA to OSL route. When you set a target price, FlightKitten continuously monitors this route and sends an email alert the moment fares drop below your budget. Each alert includes the exact fare, airline, dates, and an AI-powered briefing that explains whether the deal is genuinely good compared to historical pricing on this route. No more obsessive price checking — set your budget and let FlightKitten do the watching.

Pro tip: Book 4-6 months in advance for summer travel, as fares rise sharply from May onward. Consider routing through Reykjavik on Icelandair or Copenhagen on SAS for competitive pricing.

Looking for business class deals on this route? We recommend checking out BusinessClassSignal.com — a dedicated premium cabin fare tracker that's worth a look if you fly up front.