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Cheap flights from Seattle to Oslo from $370

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Oslo departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
Icelandair Logo
9:30 pm - 5:00 pmOSL-SEA
28h 30m1 stop
$370Icelandair
Find Deal
sáb., ene. 10 - dom., ene. 25
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
Icelandair Logo
9:30 pm - 5:00 pmOSL-SEA
28h 30m1 stop
$371Icelandair
Find Deal
sáb., ene. 10 - dom., ene. 25
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
Icelandair Logo
9:30 pm - 5:00 pmOSL-SEA
28h 30m1 stop
$380Icelandair
Find Deal
lun., ene. 12 - dom., ene. 25
Icelandair Logo
3:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
Icelandair Logo
1:10 pm - 6:00 pmOSL-SEA
12h 50m1 stop
$392Icelandair
Find Deal
lun., mar. 9 - lun., mar. 16
Icelandair Logo
7:00 pm - 11:35 amSEA-OSL
32h 35m1 stop
Icelandair Logo
4:30 pm - 8:45 pmOSL-SEA
13h 15m1 stop
$394Icelandair
Find Deal
vie., mar. 27 - dom., abr. 5
Icelandair Logo
3:45 pm - 12:35 pmSEA-OSL
11h 50m1 stop
Icelandair Logo
4:30 pm - 8:45 pmOSL-SEA
13h 15m1 stop
$405Icelandair
Find Deal
mié., may. 13 - mar., may. 19
Scandinavian Airlines Logo
2:30 pm - 12:25 amSEA-TRF
24h 55m2 stops
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF-SEA
16h 45m1 stop
$506Scandinavian Airlines
Find Deal
lun., may. 11 - mar., jun. 2
Scandinavian Airlines Logo
12:00 pm - 12:25 amSEA-TRF
27h 25m2 stops
Scandinavian Airlines Logo
3:05 pm - 1:45 pmTRF-SEA
31h 40m1 stop
$546Scandinavian Airlines
Find Deal
mar., may. 12 - lun., jun. 1
Scandinavian Airlines Logo
2:30 pm - 12:25 amSEA-TRF
24h 55m2 stops
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF-SEA
16h 45m1 stop
$556Scandinavian Airlines
Find Deal
lun., may. 11 - vie., jun. 5
Multiple Airlines Logo
7:00 pm - 6:00 pmSEA-TRF
14h 00m2 stops
Multiple Airlines Logo
12:10 pm - 6:00 pmTRF-SEA
14h 50m2 stops
$767Multiple Airlines
Find Deal
sáb., abr. 25 - mié., may. 20

Icelandair flights from Seattle to Oslo

Our best Icelandair deals on Seattle to Oslo flight tickets
Icelandair
Jan 10
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
Jan 25
OSL9:30 pmOslo Gardermoen
28h 30m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$370
Find similar
Icelandair
Jan 10
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
Jan 25
OSL9:30 pmOslo Gardermoen
28h 30m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$371
Find similar
Icelandair
Jan 12
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
Jan 25
OSL9:30 pmOslo Gardermoen
28h 30m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$380
Find similar

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets
Lufthansa
Nov 28
SEA10:05 amSeattle/Tacoma Intl
22h 35m
2 stops
OSL5:40 pmOslo Gardermoen
Dec 9
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$455
Find similar
Lufthansa
Nov 28
SEA3:10 pmSeattle/Tacoma Intl
17h 30m
1 stop
OSL5:40 pmOslo Gardermoen
Dec 9
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$470
Find similar
Lufthansa
Jan 16
SEA7:00 amSeattle/Tacoma Intl
23h 40m
2 stops
OSL3:40 pmOslo Gardermoen
Jan 20
OSL6:25 pmOslo Gardermoen
27h 55m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$476
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated noviembre 20, 2025.
Use the filters below to find and compare flights from Seattle to Oslo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

sáb. 1/10

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

dom. 1/25

9:30 pm-5:00 pm

1 stop28h 30m

$370

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

sáb. 1/10

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

dom. 1/25

9:30 pm-5:00 pm

1 stop28h 30m

$371

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 1/12

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

dom. 1/25

9:30 pm-5:00 pm

1 stop28h 30m

$380

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 3/9

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

lun. 3/16

1:10 pm-6:00 pm

1 stop12h 50m

$392

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

vie. 3/27

7:00 pm-11:35 am

1 stop32h 35m

Oslo Gardermoen

dom. 4/5

4:30 pm-8:45 pm

1 stop13h 15m

$394

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 5/13

3:45 pm-12:35 pm

1 stop11h 50m

Oslo Gardermoen

mar. 5/19

4:30 pm-8:45 pm

1 stop13h 15m

$405

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

lun. 5/11

2:30 pm-12:25 am

2 stops24h 55m

Oslo Sandefjord

mar. 6/2

6:00 am-1:45 pm

1 stop16h 45m

$506

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

mar. 5/12

12:00 pm-12:25 am

2 stops27h 25m

Oslo Sandefjord

lun. 6/1

3:05 pm-1:45 pm

1 stop31h 40m

$546

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

lun. 5/11

2:30 pm-12:25 am

2 stops24h 55m

Oslo Sandefjord

vie. 6/5

6:00 am-1:45 pm

1 stop16h 45m

$556

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

sáb. 4/25

7:00 pm-6:00 pm

2 stops14h 00m

Oslo Sandefjord

mié. 5/20

12:10 pm-6:00 pm

2 stops14h 50m

$767

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Oslo from

How to get the cheapest flight ticket from Seattle to Oslo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Oslo?

The month of January is, on average, the cheapest month to fly to Oslo from Seattle, with most prices found around $434. If you’re not able to fly to Oslo in January, then November is your next best option. Flight prices from Seattle to Oslo during November average around $483.

What is the cheapest day to depart on your flight to Oslo?

The cheapest day to depart on your flight to Oslo is on a Tuesday when prices can be found for as low as $772. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Oslo for around $896.

What is the cheapest time of day to depart on your flight to Oslo?

Flying to Oslo from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $696 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $959. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Oslo from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo for around $592 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo from Seattle for as low as $528 on momondo.

Cheap Seattle to Oslo flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Oslo

Direct flights

None
There are no direct flights from Seattle to Oslo. There are no popular flight routes from Seattle to Oslo.
Search flight deals

  • How far is Seattle/Tacoma Intl to Oslo by plane?

    Seattle/Tacoma Intl and Oslo are 4550.6 mi apart from one another. A reasonable flight in good conditions will take 11h 25m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Oslo?

    Prices for flights from Seattle/Tacoma Intl Airport to Oslo are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Oslo?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Oslo?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Oslo.

  • What documentation or ID do you need to fly to Oslo?

    The travel and health documents you'll need for your trip to Oslo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seattle to Oslo

Compare and see reviews for airlines that fly from Seattle to Oslo with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $368Free CancellationRating
6.7
7,533 reviews
Search British Airways flights
IcelandairPriceFrom $403Free CancellationRating
7.0
581 reviews
Search Icelandair flights
DeltaPriceFrom $468Free CancellationRating
7.9
8,002 reviews
Search Delta flights
FinnairPriceFrom $491Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
Scandinavian AirlinesPriceFrom $494Free CancellationRating
7.4
1,584 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $517Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
KLMPriceFrom $524Free CancellationRating
7.7
1,414 reviews
Search KLM flights
LufthansaPriceFrom $551Free CancellationRating
6.8
7,579 reviews
Search Lufthansa flights
Air FrancePriceFrom $552Free CancellationRating
7.4
1,493 reviews
Search Air France flights
American AirlinesPriceFrom $564Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Oslo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oslo from Seattle.

Can I find flights from Seattle to Oslo with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Oslo from Seattle with this policy.

How can momondo help me find flights from Seattle to Oslo?

Once all potential Seattle to Oslo flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Oslo right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Oslo flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Norway

Fly into one of these airports located in Oslo

Airports listed have a maximum distance of 53.1 mi from Oslo
Oslo Gardermoen Airport
Oslo Sandefjord Airport