To Oslo

Cheap Flights from Seattle to Oslo

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RatePunk searches hundreds of travel sites at once for deals on flights to Oslo

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Seattle to Oslo

Explore current cheapest deals departing from Seattle to Oslo

Round trip

Sort by: Cheapest

November 12 - November 26

Cheapest

SEA - Oslo

$589

$431

Round trip

November 18 - November 25

Cheapest

SEA - Oslo

$585

$431

Round trip

December 1 - December 8

Best

SEA - Oslo

$816

$438

Round trip

December 4 - December 11

Best

SEA - Oslo

$812

$444

Round trip

December 1 - December 16

SEA - Oslo

$812

$446

Round trip

December 8 - December 14

SEA - Oslo

$815

$447

Round trip

August 20 - August 29

SEA - Oslo

$725

$467

Round trip

August 11 - August 21

Earliest

SEA - Oslo

$712

$467

Round trip

August 19 - August 27

SEA - Oslo

$732

$467

Round trip

August 20 - August 28

SEA - Oslo

$728

$469

Round trip

Unlock all 500+ flight deals to Oslo and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Seattle to Oslo

Right now, fares for flights from Seattle to Oslo are typically $650–$1277, with a median of $973. Current fares are below the typical level, and only 8% of recent fares were classified as a good price. New deals appear almost daily, suggesting frequent opportunities to find cheap flights from Seattle to Oslo.

When considering the cheapest time to fly from Seattle to Oslo, April stands out with a median fare of $205. Following April, May offers a median fare of $525, and July presents a median of $662. These months generally offer more favorable pricing for this route.

Most itineraries for flights from Seattle to Oslo connect at least once, with no direct flights from Seattle to Oslo observed in recent data. For connecting itineraries, the typical number of connections is 3. This means travelers should expect multiple stops on their journey.

A typical journey from Seattle to Oslo takes approximately 37h 55m, including connections. This duration accounts for the multiple stopovers common on this long-haul route. Travelers should plan for a significant amount of time in transit due to the distance and connecting nature of these flights.

The distance between Seattle and Oslo is 7329 kilometers, classifying this as a long-haul route. This considerable distance necessitates longer flight times and typically involves multiple connections, contributing to the extended journey durations.

How much is a round trip from Seattle to Oslo

Regular price: $537 - $711

Prices for flights from Seattle to Oslo are currently below the regular range.

The regular price range for flights from Seattle to Oslo is between $537 and $711. The current lowest deal is $431 with Icelandair, for travel from Nov 12 to Nov 26.

now $431

Low $537

High $711

The cheapest time to fly from Seattle to Oslo

The cheapest month to fly from Seattle to Oslo is April, with a median price of $205. The most expensive month is March, with a median price of $1853. Prices are generally lower from April to October.

April

Cheapest

Flights from $205

March

Most Expensive

Flights from $1,853

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Seattle to Oslo

Icelandair

KLM

Lufthansa

Alaska Airlines, Inc.

Last-minute flights going from Seattle to Oslo

Wed, Jun 17

⌛ Last-Minute

SEA - Oslo

Seattle (SEA) - Oslo (OSL)

KLM

$686

$625

One-way

Thu, Jun 18

⌛ Last-Minute

SEA - Oslo

Seattle (SEA) - Oslo (OSL)

Lufthansa

$720

$589

One-way

Fri, Jun 19

⌛ Last-Minute

SEA - Oslo

Seattle (SEA) - Oslo (OSL)

Air Canada

$687

$607

One-way

Mon, Jun 22

⌛ Last-Minute

SEA - Oslo

Seattle (SEA) - Oslo (OSL)

KLM

$644

$625

One-way

Tue, Jun 23

⌛ Last-Minute

SEA - Oslo

Seattle (SEA) - Oslo (OSL)

Icelandair

$684

$624

One-way

Wed, Jun 24

⌛ Last-Minute

SEA - Oslo

Seattle (SEA) - Oslo (OSL)

KLM

$682

$627

One-way

Biggest price drops on these dates for flights from Seattle to Oslo

7 nights

Dec 1 - Dec 8

$816 → $438

46%

7 nights

Dec 4 - Dec 11

$812 → $444

45%

6 nights

Dec 8 - Dec 14

$815 → $447

45%

15 nights

Dec 1 - Dec 16

$812 → $446

45%

Popular Airports to fly from Seattle to Oslo

Seattle - Oslo route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Seattle to Oslo are below the typical level, with deals around $431.

📅 Best time to fly

April is historically the cheapest month

Historically, April is the cheapest month to fly from Seattle to Oslo, with a median price of $205.

⏱️ Flight duration

Connecting flights average 37h 55m

Flights from Seattle to Oslo typically involve connections, with an average total travel time of 37h 55m.

✈️ Airlines & availability

Connecting flights are dominant on this route

This route is dominated by connecting flights, with no direct flights available from Seattle to Oslo.

🏆 Airline highlight

Icelandair offers deals on connecting flights

Icelandair frequently offers deals on connecting flights from Seattle to Oslo, with 46 deals recently observed.

🎯 Booking tip

Deals appear frequently for this route

Deals for flights from Seattle to Oslo appear frequently, with about 0.6 deals per day.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a good option for flights from Seattle to Oslo.

📍 ~15 km from Seattle (reachable by car or public transport)

💸 Flights from ~$431

Boeing Field (BFI)

Boeing Field is an alternative departure airport for flights from Seattle to Oslo.

📍 ~10 km from Seattle (reachable by car or public transport)

💸 Flights from ~$946

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base is an alternative departure airport for flights from Seattle to Oslo.

📍 ~5 km from Seattle (reachable by car or public transport)

💸 Flights from ~$431

Oslo main airports to arrive at

Oslo Airport, Gardermoen (OSL)

Cheapest

Oslo Airport, Gardermoen is Oslo's main international airport and a convenient arrival point for your trip.

📍 ~35 km from Oslo city center (reachable by car, bus, or train).

💸 Flights from ~$431

Sandefjord Airport, Torp (TRF)

Sandefjord Airport, Torp offers an alternative arrival option for travelers heading to the Oslo region.

📍 ~110 km from Oslo city center (reachable by car, bus, or train).

💸 Flights from ~$629

Airports nearby Oslo used as alternative

Oslo Airport, Gardermoen (OSL)

Cheapest

Oslo Airport, Gardermoen is the primary international hub for Oslo and offers the widest range of destinations.

📍 ~35 km from Oslo (reachable by train or bus)

💸 Flights from ~$431

Sandefjord Airport, Torp (TRF)

Sandefjord Airport, Torp is a well-established secondary airport for the Oslo region, offering alternative route options.

📍 ~100 km from Oslo (reachable by shuttle bus or train)

💸 Flights from ~$629

Kristiansand Airport, Kjevik (KRS)

Kristiansand Airport, Kjevik is a significant regional airport with international connections, useful for specific southern routes.

📍 ~250 km from Oslo (reachable by car or train)

💸 Flights from ~$682

Scandinavian Mountains Airport (SCR)

Scandinavian Mountains Airport is a modern cross-border option in Sweden, primarily for winter tourism.

📍 ~180 km from Oslo (reachable by car)

💸 Flights from ~$1246

Torsby (TYF)

Torsby is a small regional airfield that is geographically closer than some major Norwegian regional airports.

📍 ~150 km from Oslo (reachable by car)

💸 Flights from ~$759

Business & First Class Flight Deals to Oslo

78% AI deal score

$5,314

From SEA

Elite

Jul 22

Oslo, Norway

78% AI deal score

$5,314

From SEA

Elite

Jul 22

Oslo, Norway

78% AI deal score

$5,325

$5,314

Save $11

From SEA

Elite

Jul 22

Oslo, Norway

78% AI deal score

$5,314

From SEA

Elite

Aug 06

Oslo, Norway

78% AI deal score

Oslo, Norway

71% AI deal score

$18,966

Frequently Asked Questions About Flights to Oslo

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can also help you identify better deals. Sometimes, flying on weekdays or during off-peak seasons may result in lower fares.

Booking in advance often provides more options and potentially better prices, especially for international routes. However, last-minute deals can sometimes appear, though they are less common. Monitoring price trends can help you decide on an optimal booking time.

Comparing nearby airports at both your origin and destination can sometimes uncover alternative flight options or better prices. While it may add to your travel time, the potential savings could be significant. Always factor in the cost and convenience of ground transportation to and from these airports.

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