Cheap Flights from Seattle (SEA) to Oslo (OSL)

You can find one-way and return flights from SEA to OSL with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to OSL ticket fares go up or down.

The cheapest months to fly from SEA to OSL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

Enter SEA to OSL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

To find a cheap flight from Seattle, WA (SEA) to Oslo (OSL), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

There are approximately 80 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Gardermoen (OSL). Some common connection points include O'Hare Intl. (ORD), Vancouver Intl. (YVR), and Pearson Intl. (YYZ).

The earliest flight from Seattle - Tacoma Intl. (SEA) to Gardermoen (OSL) typically departs around 12:10 AM. This flight is operated by American Airlines and British Airways. This is a seasonal service, active only in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from Seattle - Tacoma Intl. (SEA) to Oslo (OSL) on a Thursday, with around 89 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta, United, and American Airlines. Looking at the week, Thursday offers notably more flight options compared to other days, ensuring you have a good selection to choose from.

The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Oslo (OSL) are between 12pm and 3pm. Many major carriers, including Lufthansa, United and Delta, offer flights during this window. Many travellers prefer this time as it allows for a full morning before heading to the airport, and you'll arrive in Oslo with time to settle in.

There are no nonstop flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Oslo (OSL-Gardermoen). For flights with one stop, you can expect the journey to take around 19 hours 48 minutes. If your flight has two or more stops, the travel time will typically be longer, averaging about 20 hours. The distance covered on this route is approximately 7329 kilometres. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and weather conditions.

You can fly business class or first class between SEA and OSL. Airlines that offer business class service on this route include:

• Lufthansa
• Air France
• Icelandair
• British Airways
• Aer Lingus
• SAS
• Horizon Air
• Virgin Atlantic
• Edelweiss Air
• Turkish Airlines
• Condor
• Delta
• Alaska Airlines
• Air Canada
• United
• Finnair
• American Airlines

First class cabins are available on Alaska Airlines and United.

It's easy to earn miles on a Seattle, WA (SEA) to Oslo (OSL) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Oslo from Seattle - Tacoma Intl. (SEA), you can fly directly into Gardermoen (OSL). Some flights may connect through major hubs like O'Hare Intl. (ORD), Vancouver Intl. (YVR), or Washington Dulles Intl. (IAD) before reaching Oslo. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Seattle, WA (SEA) to Oslo (OSL) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Seattle, WA (SEA) to Oslo (OSL) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Seattle, WA (SEA) to Oslo (OSL) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.