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

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How to find the cheapest flight from
Seattle (SEA) to Oslo (OSL)

All the information you need to plan the best SEA to OSL flight in 2021: compare Seattle to Oslo flight prices with the expected peak season, weather and rainfall in Oslo.
SEA - OS1
Price
$552 - $882
OS1
Temperature
26.6 - 62.6 °F
OS1
Precipitation
1.6 - 3.5 inches

Popular in

December

High demand for flights, 21% potential price rise

Cheapest in

May

Best time to find cheap flights, 20% potential price drop

Average price

$882

Average for round-trip flights in December 2021

Round-trip from

$552

From Seattle/Tacoma Intl to Oslo

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest month to fly from Seattle to Oslo?

May is one of the best times of the year to fly to Oslo from Seattle. Prices for May average $694 per person but you can even find prices for as low as $463. The most expensive prices can be found in the month of December. Opting for a May flight can save you 27% on your journey compared to booking in May

How far in advance should I book a flight from Seattle to Oslo?

Travelers have found it’s best to book a flight 61 days in advance to save up to 64% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Oslo 1-2 weeks in advance for as low as $964, or $1,281 for flights within the next 24 hours.

When is the cheapest time to fly from Seattle to Oslo (SEA - OS1)?

When flying from Seattle to Oslo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Seattle to Oslo in December, January 2022

The best prices found for SEA to OSL flights for December, January
18 Jan - 24 Jan
$462pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
27 Jan - 10 Feb
$476pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
20 Jan - 24 Feb
$561pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Oslo 2022 flight deals

Cheap flights to Oslo from Seattle found for this year
27 Dec - 24 Jan
$638pp
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
KLM
 
1 STOP
SEA
Seattle/Tacoma Intl
27 Dec - 24 Jan
$648pp
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
KLM
   
2 STOPS
SEA
Seattle/Tacoma Intl
29 Dec - 8 Jan
$703pp
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
KLM
   
2 STOPS
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Oslo

Late deals on round-trip flights to Oslo from Seattle, departing today and this week
10 Dec - 17 Dec
$1,243pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
10 Dec - 20 Dec
$1,275pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
10 Dec - 17 Dec
$1,289pp
SEA
Seattle/Tacoma Intl
SAS
 
1 STOP
OSL
Oslo Gardermoen
OSL
Oslo Gardermoen
SAS
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Oslo from Seattle

The cheapest one-way flights from Seattle to Oslo
8:45 am - 11:35 am
Delta
1 Stop
17h 50m
SEA - OSL
Delta
$647
Delta
2:00 am - 7:40 am
Austrian Airlines
2 Stops
20h 40m
SEA - OSL
Austrian Airlines
$656
TravelMerry
8:45 am - 11:35 am
Air France
1 Stop
17h 50m
SEA - OSL
Air France

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Oslo</span> flights.

Flight FAQs

From Seattle to Oslo

What airport do you fly from for flights from Seattle to Oslo?

Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Oslo. You should not have trouble finding flights to Oslo from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Oslo per day. You should also have plenty of airline options to choose from since 13 airlines have flights from the Seattle airport to Oslo. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

Which airlines flying from Seattle/Tacoma Intl to Oslo have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Seattle/Tacoma Intl to Oslo that may be offering flexible cancellation policies are Icelandair, Delta, and Norwegian. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Seattle to Oslo for under $500 on Cheapflights?

Yes, there are multiple flights from Seattle to Oslo for under $500. The cheapest flight booked recently is on Icelandair for just $448, but on average you can expect to pay $536.

Are there last-minute flights available from Seattle to Oslo for under $1,300?

There are currently 17+ open flights from Seattle to Oslo within the next 7 days for less than $1,300.

What are the cheapest airlines flying from Seattle to Oslo round-trip?

According to our current data, Icelandair ($448), American Airlines ($573), and Lufthansa ($579) offers the cheapest pricing from Seattle to Oslo. Icelandair is 35% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Seattle to Oslo one-way?

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $647. KLM flights start at $653 while deals on Austrian Airlines start at $656 one-way.

What are the most popular airlines that fly from Seattle to Oslo?

American Airlines, Air France and Finnair are the most popular airlines when flying from Seattle to Oslo.

What are the cheapest flights from Seattle to Oslo?

Looking at all options, your cheapest flight can be booked for $375. While the most popular route (Seattle/Tacoma Intl - Oslo Gardermoen) can be booked for $448 on average our data indicates $1,232 when flying from Seattle to Oslo.

COVID Restrictions

View COVID Travel Restrictions for Oslo, Norway

Do I need a COVID test to fly to Oslo from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Oslo

Most visitors from Seattle/Tacoma Intl will not be allowed to enter Oslo.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Oslo.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Oslo.

Documents
Pre Registration Form - 72 hours before arrival in Norway.


Do I need a test to fly back to Seattle from Oslo?

Returning to Seattle/Tacoma Intl from Oslo

COVID-19 testing requirements
Visitors from Oslo must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Oslo are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Oslo, Norway

Destination information for Oslo

Things to know before you go - useful duration and weather info for your trip from Seattle to Oslo.
Today's exchange rate
$1 = 9.14 kr
Average temperature for December in Oslo
33.8 °F
Avg rainfall for December in Oslo
1.7 ″

Airports servicing Seattle

Airports servicing Oslo

Oslo Gardermoen (OSL)
Oslo Sandefjord (TRF)

Top 10 airlines flying from Seattle/Tacoma Intl to Oslo

The chart below displays the airlines Cheapflights users traveling from Seattle to Oslo choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
British Airways
$357 $718 No cancel fee 70%
Lufthansa
$385 $776 No cancel fee 76%
Finnair
$386 $774 No cancel fee 76%
Norwegian
$419 $641 No cancel fee 74%
Icelandair
$431 $882 No cancel fee 76%
Air France
$440 $835 No cancel fee 77%
Delta
$451 $855 No cancel fee N/A
Iberia
$455 $688 No cancel fee 77%
American Airlines
$464 $918 No cancel fee 71%
KLM
$492 $844 No cancel fee 75%
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