What airlines fly to State of Washington?

Icelandair, Lufthansa and Scandinavian Airlines are the top three most popular airlines that fly to State of Washington from Oslo according to our data. Icelandair is the first choice among our users, with 34% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 5 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Oslo to Washington?

Finnair, American Airlines, and British Airways are the most popular carriers operating from Oslo to Washington

When did momondo last update prices for flights from Oslo to Washington?

Prices for flights from Oslo to Washington were last updated today.

How many operators does momondo search for flights from Oslo to Washington?

There are 6 operators available for flights from Oslo to Washington as of November 2025.

How old do you have to be to fly from Oslo to Washington?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Oslo to Washington.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$297 Cheap Flights from Oslo to Washington in 2025/26

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Find the cheapest flights from Oslo to Washington

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:30 pm - 5:00 pmOSL-SEA

28h 30m1 stop

2:35 pm - 8:35 pmSEA-OSL

21h 00m1 stop

$407Icelandair

Find Deal

Sun, Jan 11 - Sat, Jan 24

6:15 am - 12:10 pmOSL-SEA

14h 55m1 stop

7:00 am - 1:00 pmSEA-OSL

21h 00m2 stops

$426Lufthansa

Find Deal

Thu, Jan 15 - Wed, Jan 28

6:15 am - 12:10 pmOSL-SEA

14h 55m1 stop

7:00 am - 1:00 pmSEA-OSL

21h 00m2 stops

$430Lufthansa

Find Deal

Thu, Jan 15 - Thu, Jan 29

7:05 am - 7:18 pmOSL-SEA

21h 13m2 stops

8:35 am - 2:10 pmSEA-OSL

20h 35m2 stops

$450British Airways

Find Deal

Thu, Jan 15 - Wed, Jan 28

12:25 pm - 11:59 pmOSL-SEA

20h 34m2 stops

8:35 am - 12:00 pmSEA-OSL

18h 25m2 stops

$453Finnair

Find Deal

Thu, Jan 15 - Thu, Jan 29

11:35 am - 11:30 amOSL-SEA

32h 55m1 stop

6:50 pm - 10:40 pmSEA-OSL

18h 50m1 stop

$454British Airways

Find Deal

Mon, Jan 12 - Sun, Jan 25

7:05 am - 4:55 pmOSL-SEA

18h 50m1 stop

6:50 pm - 10:55 amSEA-OSL

31h 05m1 stop

$455British Airways

Find Deal

Thu, Jan 15 - Wed, Jan 28

8:45 am - 11:59 pmOSL-SEA

24h 14m2 stops

6:50 pm - 12:00 pmSEA-OSL

32h 10m2 stops

$460Finnair

Find Deal

Thu, Jan 22 - Wed, Feb 4

1:50 pm - 8:50 pmTRF-SEA

40h 00m2 stops

7:10 am - 2:05 pmSEA-TRF

21h 55m2 stops

$1,203Scandinavian Airlines

Find Deal

Sat, Dec 20 - Sat, Jan 3

2:35 pm - 7:00 pmTRF-SEA

37h 25m2 stops

7:10 am - 2:05 pmSEA-TRF

21h 55m2 stops

$1,326Scandinavian Airlines

Find Deal

Wed, Dec 17 - Sat, Jan 3

Icelandair flights from Oslo to State of Washington

Our best Icelandair deals on Oslo to State of Washington flight tickets

Icelandair

Jan 11

OSL9:30 pmOslo Gardermoen

28h 30m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Jan 24

SEA2:35 pmSeattle/Tacoma Intl

21h 00m

1 stop

OSL8:35 pmOslo Gardermoen

$407

Find similar

Icelandair

Feb 15

OSL9:30 pmOslo Gardermoen

28h 30m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Feb 19

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

$522

Find similar

Icelandair

Feb 15

OSL9:30 pmOslo Gardermoen

28h 30m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Feb 19

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

$524

Find similar

Lufthansa flights from Oslo to State of Washington

Our best Lufthansa deals on Oslo to State of Washington flight tickets

Lufthansa

Jan 15

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

Jan 28

SEA7:00 amSeattle/Tacoma Intl

21h 00m

2 stops

OSL1:00 pmOslo Gardermoen

$426

Find similar

Lufthansa

Jan 15

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

Jan 29

SEA7:00 amSeattle/Tacoma Intl

21h 00m

2 stops

OSL1:00 pmOslo Gardermoen

$430

Find similar

Lufthansa

Jan 15

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

Jan 29

SEA2:00 pmSeattle/Tacoma Intl

14h 00m

1 stop

OSL1:00 pmOslo Gardermoen

$441

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 1/11

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Sat 1/24

2:35 pm-8:35 pm

1 stop21h 00m

$407

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

6:15 am-12:10 pm

1 stop14h 55m

Seattle/Tacoma Intl

Wed 1/28

7:00 am-1:00 pm

2 stops21h 00m

$426

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

6:15 am-12:10 pm

1 stop14h 55m

Seattle/Tacoma Intl

Thu 1/29

7:00 am-1:00 pm

2 stops21h 00m

$430

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

7:05 am-7:18 pm

2 stops21h 13m

Seattle/Tacoma Intl

Wed 1/28

8:35 am-2:10 pm

2 stops20h 35m

$450

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

12:25 pm-11:59 pm

2 stops20h 34m

Seattle/Tacoma Intl

Thu 1/29

8:35 am-12:00 pm

2 stops18h 25m

$453

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 1/12

11:35 am-11:30 am

1 stop32h 55m

Seattle/Tacoma Intl

Sun 1/25

6:50 pm-10:40 pm

1 stop18h 50m

$454

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/15

7:05 am-4:55 pm

1 stop18h 50m

Seattle/Tacoma Intl

Wed 1/28

6:50 pm-10:55 am

1 stop31h 05m

$455

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 1/22

8:45 am-11:59 pm

2 stops24h 14m

Seattle/Tacoma Intl

Wed 2/4

6:50 pm-12:00 pm

2 stops32h 10m

$460

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sat 12/20

1:50 pm-8:50 pm

2 stops40h 00m

Seattle/Tacoma Intl

Sat 1/3

7:10 am-2:05 pm

2 stops21h 55m

$1,203

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Wed 12/17

2:35 pm-7:00 pm

2 stops37h 25m

Seattle/Tacoma Intl

Sat 1/3

7:10 am-2:05 pm

2 stops21h 55m

$1,326

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Oslo to State of Washington

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

Prices

Airlines

What is the cheapest month to fly to State of Washington?

The month of May is, on average, the cheapest month to fly to State of Washington from Oslo, with most prices found around $477. If you aren’t able to travel to State of Washington during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $481.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Oslo to State of Washington is on a Saturday. Travelers who choose to depart for State of Washington on a Saturday will often find tickets for as low as $536. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Oslo to State of Washington for around $769.

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

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $536. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $662 on average. Flights to State of Washington from Oslo in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Oslo when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $574 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Oslo for as low as $489 on momondo.

Cheap Oslo to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oslo to State of Washington

Fastest flight time	22h 01m
Direct flights	None

The fastest flight from Oslo to State of Washington takes 22h 01m

There are no direct flights from Oslo to State of Washington. There are no popular flight routes from Oslo to State of Washington.

Search flight deals

When did momondo last update prices for flights from Oslo to Washington?
Prices for flights from Oslo to Washington were last updated today.
How many operators does momondo search for flights from Oslo to Washington?
There are 6 operators available for flights from Oslo to Washington as of November 2025.
How old do you have to be to fly from Oslo to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Oslo to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oslo to State of Washington

Compare and see reviews for airlines that fly from Oslo to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $395	Free Cancellation	Rating 7.0 584 reviews	Search Icelandair flights
British Airways	PriceFrom $419	Free Cancellation	Rating 6.7 7,546 reviews	Search British Airways flights
Lufthansa	PriceFrom $436	Free Cancellation	Rating 6.8 7,600 reviews	Search Lufthansa flights
Delta	PriceFrom $452	Free Cancellation	Rating 7.9 8,010 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $603	Free Cancellation	Rating 7.4 1,590 reviews	Search Scandinavian Airlines flights

Why use momondo?

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

It is quick and easy to find Oslo to Washington flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington that suits you.

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

momondo does allow users to show only those flights to Washington from Oslo which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Oslo to Washington 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 Oslo to Washington right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington from Oslo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.