How popular is this Seattle to Copenhagen flight route?

Within the past month, 8 users have taken a look at flights from Seattle/Tacoma Intl to Kastrup Copenhagen.

How long is the flight from Seattle to Copenhagen?

There are many flights that can get you from Seattle to Copenhagen in 12h 10m. Fly via Icelandair, Scandinavian Airlines, or Delta to get the fastest option. The distance between Seattle and Copenhagen is about 4850 mi. This flight may include one or multiple stops.

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

Air France, at $418, was found to be the cheapest airline from Seattle to Copenhagen.Alternate airlines to your destination round-trip include Icelandair and Finnair. Air France is 34% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Copenhagen ranges from 0.8 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Copenhagen when rainfall is around 0.8 in.

If weather is an important factor for your trip to Copenhagen, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the cheapest flights from Seattle to Copenhagen?

On average you can expect to pay $1,639 for a flight from Seattle to Copenhagen. The cheapest flight overall is $373 while the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen) is currently priced at $419.

What are the most reliable airlines from Seattle to Copenhagen?

Before booking your flight to Copenhagen from Seattle, check out the most reliable airlines to get you to your destination on time: Air France (100%), Scandinavian Airlines (93%), Delta( 93%).

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

Before booking your flight from Seattle to Copenhagen check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

Where are the most common layover locations when flying from Seattle to Copenhagen?

The most popular layover on flights from Seattle to Copenhagen is Reykjavik.

Where are the least popular layover locations for Seattle to Copenhagen flights?

Seattle to Copenhagen flights have a layover in London the least frequently.

What are some popular things to do or see while on a layover in Reykjavik?

If you're on a layover in Reykjavik and looking for things to do, consider visiting Harpa, Hallgrímskirkja, or Laugardalslaug Geothermal Pool. Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Those landing in Reykjavik looking to spend some time exploring during their layover can rent a car for about $58 per day.

What is the cheapest day to fly round-trip from Seattle to Copenhagen?

Monday is generally a great day to depart. Flying on this day could help you save up to 13%.

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

To save on the cost of your flight from Seattle to Copenhagen, book at least 53 days before your planned departure. Booking around this time can save you about 44% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $591 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $791.

What is the cheapest month to fly from Seattle to Copenhagen?

February is one of the best times of the year to fly to Copenhagen from Seattle. Prices for February average $637 per person but you can even find prices for as low as $400. The most expensive prices can be found in the month of June. Opting for a February flight can save you 21% on your journey compared to booking in June

Can I find deals for flights from Seattle to Copenhagen that include hotel bookings?

Yes. In addition to deals on Seattle to Copenhagen flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Copenhagen?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Copenhagen.

Can I find deals for business class flights from Seattle to Copenhagen?

Yes. Cheapflights offers flight deals from Seattle to Copenhagen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$268+ Cheap Flights from Seattle to Copenhagen

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Seattle to Copenhagen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Kastrup Copenhagen are usually found in February or January, booked 90 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Seattle to Copenhagen

Round-trip from	$457 (CrystalTravel)
One-way from	$268 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$632
Good round-trip deal	$521 or less
Good one-way deal	$397 or less

From Seattle/Tacoma Intl to Kastrup Copenhagen

Search Deals

One-way flight from Seattle/Tacoma Intl to Kastrup Copenhagen

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($65 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from Seattle/Tacoma Intl to Kastrup Copenhagen.

Search Deals

Price to beat on a one-way flight from Seattle/Tacoma Intl to Kastrup Copenhagen.

Search Deals

Find flight deals from Seattle to Copenhagen

Cheapest flights from Seattle to Copenhagen
Explore the most affordable flight options available from Seattle to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Thu 10/1612:45 pmSEA - CPH

1 stop17h 25mScandinavian Airlines

Wed 10/221:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/10

$457

Sun 10/57:00 pmSEA - CPH

1 stop32h 55mIcelandair

Sun 10/1910:35 pmCPH - SEA

1 stop31h 05mIcelandair

Deal found 9/10

$459

Sun 10/57:10 amSEA - CPH

1 stop18h 35mScandinavian Airlines

Sun 10/191:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/10

$462

Mon 11/242:35 pmSEA - CPH

1 stop21h 00mIcelandair

Tue 12/212:55 pmCPH - SEA

1 stop13h 05mIcelandair

Deal found 9/10

$465

Wed 11/262:35 pmSEA - CPH

1 stop12h 10mIcelandair

Mon 4/132:00 pmCPH - SEA

1 stop12h 50mIcelandair

Deal found 9/8

$466

Wed 11/122:35 pmSEA - CPH

1 stop21h 00mIcelandair

Mon 11/179:30 pmCPH - SEA

1 stop28h 30mIcelandair

Deal found 9/10

$467

Sun 10/127:25 amSEA - CPH

1 stop18h 20mScandinavian Airlines

Fri 10/241:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/9

$468

Tue 9/303:45 pmSEA - CPH

1 stop15h 00mIcelandair

Tue 10/74:45 pmCPH - SEA

1 stop12h 55mIcelandair

Deal found 9/10

$471

Tue 11/112:11 pmSEA - CPH

1 stop16h 14mScandinavian Airlines

Wed 11/1912:50 pmCPH - SEA

2 stops42h 35mScandinavian Airlines

Deal found 9/10

$472

Sun 11/232:35 pmSEA - CPH

1 stop12h 10mIcelandair

Mon 4/132:00 pmCPH - SEA

1 stop12h 50mIcelandair

Deal found 9/8

$473

Tue 9/307:00 pmSEA - CPH

1 stop11h 45mIcelandair

Fri 10/174:45 pmCPH - SEA

1 stop12h 55mIcelandair

Deal found 9/10

$474

Best flights from Seattle to Copenhagen
Discover carefully curated flight deals from Seattle to Copenhagen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Mon 11/172:35 pmSEA - CPH

1 stop12h 10mIcelandair

Fri 11/2112:55 pmCPH - SEA

1 stop13h 05mIcelandair

Deal found 9/9

$465

Tue 11/112:11 pmSEA - CPH

1 stop16h 14mScandinavian Airlines

Wed 11/1912:50 pmCPH - SEA

2 stops42h 35mScandinavian Airlines

Deal found 9/10

$472

Sun 10/127:19 amSEA - CPH

1 stop14h 11mDelta

Wed 10/229:00 amCPH - SEA

2 stops23h 54mDelta

Deal found 9/9

$499

Wed 11/262:35 pmSEA - CPH

1 stop12h 10mIcelandair

Sat 4/185:15 pmCPH - SEA

1 stop12h 55mIcelandair

Deal found 9/8

$473

Sat 10/119:59 pmSEA - CPH

1 stop23h 31mDelta

Tue 10/219:00 amCPH - SEA

2 stops20h 45mDelta

Deal found 9/9

$499

Mon 11/2410:40 amSEA - CPH

1 stop16h 20mScandinavian Airlines

Mon 4/134:10 pmCPH - SEA

2 stops39h 06mScandinavian Airlines

Deal found 9/8

$504

Sun 10/54:20 pmSEA - CPH

Nonstop9h 30mScandinavian Airlines

Sun 10/191:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/11

$520

Sat 10/119:59 pmSEA - CPH

1 stop23h 31mDelta

Fri 10/249:00 amCPH - SEA

2 stops23h 54mDelta

Deal found 9/9

$521

Sat 11/292:35 pmSEA - CPH

1 stop12h 10mIcelandair

Mon 4/132:00 pmCPH - SEA

1 stop12h 50mIcelandair

Deal found 9/8

$523

Sun 10/59:58 pmSEA - CPH

1 stop23h 32mDelta

Sun 10/199:20 amCPH - SEA

1 stop35h 30mDelta

Deal found 9/11

$521

Tue 11/182:35 pmSEA - CPH

1 stop12h 10mIcelandair

Sun 11/2312:55 pmCPH - SEA

1 stop13h 05mIcelandair

Deal found 9/11

$530

Last-minute flights from Seattle to Copenhagen
Discover last-minute flight deals from Seattle to Copenhagen. Data last updated September 11, 2025 and is based on user searches.

Sun 9/147:00 pmSEA - CPH

1 stop18h 15mIcelandair

Mon 9/2211:05 pmCPH - SEA

1 stop30h 35mIcelandair

Deal found 9/9

$485

Tue 9/303:45 pmSEA - CPH

1 stop15h 00mIcelandair

Tue 10/74:45 pmCPH - SEA

1 stop12h 55mIcelandair

Deal found 9/10

$471

Tue 9/307:00 pmSEA - CPH

1 stop11h 45mIcelandair

Fri 10/174:45 pmCPH - SEA

1 stop12h 55mIcelandair

Deal found 9/10

$474

Tue 9/3012:45 pmSEA - CPH

1 stop17h 25mScandinavian Airlines

Wed 10/151:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/10

$483

Sun 10/57:00 pmSEA - CPH

1 stop32h 55mIcelandair

Sun 10/1910:35 pmCPH - SEA

1 stop31h 05mIcelandair

Deal found 9/10

$459

Sun 10/57:10 amSEA - CPH

1 stop18h 35mScandinavian Airlines

Sun 10/191:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/10

$462

Sat 10/112:10 pmSEA - CPH

1 stop16h 00mScandinavian Airlines

Wed 10/221:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/9

$473

Sun 10/127:25 amSEA - CPH

1 stop18h 20mScandinavian Airlines

Fri 10/241:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/9

$468

Thu 10/1612:45 pmSEA - CPH

1 stop17h 25mScandinavian Airlines

Wed 10/221:10 pmCPH - SEA

Nonstop9h 50mScandinavian Airlines

Deal found 9/10

$457

One-way flights from Seattle to Copenhagen
Search for one-way flight options from Seattle to Copenhagen. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Mon 10/202:05 pmSEA - CPH

2 stops37h 00mMultiple Airlines

Deal found 9/9

$268

Thu 12/43:10 pmSEA - CPH

2 stops39h 50mMultiple Airlines

Deal found 9/10

$272

Tue 12/23:10 pmSEA - CPH

2 stops35h 30mMultiple Airlines

Deal found 9/10

$289

Sat 12/611:55 amSEA - CPH

3 stops37h 35mMultiple Airlines

Deal found 9/10

$291

Fri 12/511:55 amSEA - CPH

3 stops23h 20mMultiple Airlines

Deal found 9/9

$292

Wed 12/33:10 pmSEA - CPH

2 stops40h 35mMultiple Airlines

Deal found 9/10

$296

Mon 10/69:30 pmSEA - CPH

2 stops38h 15mMultiple Airlines

Deal found 9/11

$298

Sun 9/288:40 amSEA - CPH

2 stops41h 30mMultiple Airlines

Deal found 9/9

$299

Mon 12/18:12 amSEA - CPH

2 stops39h 43mMultiple Airlines

Deal found 9/10

$310

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Copenhagen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 11/17

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Fri 11/21

12:55 pm-5:00 pm

1 stop13h 05m

$465

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 11/11

2:11 pm-3:25 pm

1 stop16h 14m

Kastrup Copenhagen

Wed 11/19

12:50 pm-10:25 pm

2 stops42h 35m

$472

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 11/26

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Sat 4/18

5:15 pm-9:10 pm

1 stop12h 55m

$473

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 10/12

7:19 am-6:30 am

1 stop14h 11m

Kastrup Copenhagen

Wed 10/22

9:00 am-11:54 pm

2 stops23h 54m

$499

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 10/11

9:59 pm-6:30 am

1 stop23h 31m

Kastrup Copenhagen

Tue 10/21

9:00 am-8:45 pm

2 stops20h 45m

$499

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 11/24

10:40 am-12:00 pm

1 stop16h 20m

Kastrup Copenhagen

Mon 4/13

4:10 pm-10:16 pm

2 stops39h 06m

$504

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 10/5

4:20 pm-10:50 am

Nonstop9h 30m

Kastrup Copenhagen

Sun 10/19

1:10 pm-2:00 pm

Nonstop9h 50m

$520

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 10/11

9:59 pm-6:30 am

1 stop23h 31m

Kastrup Copenhagen

Fri 10/24

9:00 am-11:54 pm

2 stops23h 54m

$521

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 10/5

9:58 pm-6:30 am

1 stop23h 32m

Kastrup Copenhagen

Sun 10/19

9:20 am-11:50 am

1 stop35h 30m

$521

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 11/29

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Mon 4/13

2:00 pm-5:50 pm

1 stop12h 50m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 20 results

The best insider tips for Seattle to Copenhagen flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Copenhagen trip

Airports

SEA

Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for security screening appointments to save time.

CPH

The Metro is the easiest way to reach Copenhagen from CPH. Trains run every 5 minutes and take about 10-20 minutes to the city center.

Our travel experts

John Walton

Expert on CPH

Brandon Schultz

Expert on SEA

Best time to book a flight from Seattle to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from Seattle with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Copenhagen

How far ahead should I book a flight from Seattle to Copenhagen?

The price you pay for your flight from Seattle to Copenhagen may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Copenhagen?

Currently, November is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of $523). Flying from Seattle to Copenhagen in June is currently the most expensive (average of $910). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to CPH?

Unlike in the morning, when flights are generally more expensive, you can save up to 20% on flights from Seattle to Copenhagen by exploring options for tickets in the evening.

What is the cheapest day to fly from Seattle to Copenhagen?

Travelers seeking maximum savings on their Seattle to Copenhagen flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Copenhagen

Read through reviews of airlines operating flights from Seattle to Copenhagen, such as Delta, Scandinavian Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,960 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Scandinavian Airlines

7.4

Good

1,484 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Icelandair

7.0

Good

546 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

British Airways

6.7

Okay

7,361 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

How popular is this Seattle to Copenhagen flight route?
Within the past month, 8 users have taken a look at flights from Seattle/Tacoma Intl to Kastrup Copenhagen.
How long is the flight from Seattle to Copenhagen?
There are many flights that can get you from Seattle to Copenhagen in 12h 10m. Fly via Icelandair, Scandinavian Airlines, or Delta to get the fastest option. The distance between Seattle and Copenhagen is about 4850 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Seattle to Copenhagen round-trip?
Air France, at $418, was found to be the cheapest airline from Seattle to Copenhagen.Alternate airlines to your destination round-trip include Icelandair and Finnair. Air France is 34% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Seattle to Copenhagen?
Before booking your flight to Copenhagen from Seattle, check out the most reliable airlines to get you to your destination on time: Air France (100%), Scandinavian Airlines (93%), Delta( 93%).
What are the cheapest flights from Seattle to Copenhagen?
On average you can expect to pay $1,639 for a flight from Seattle to Copenhagen. The cheapest flight overall is $373 while the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen) is currently priced at $419.
Where are the most common layover locations when flying from Seattle to Copenhagen?
The most popular layover on flights from Seattle to Copenhagen is Reykjavik.
What are some popular things to do or see while on a layover in Reykjavik?
If you're on a layover in Reykjavik and looking for things to do, consider visiting Harpa, Hallgrímskirkja, or Laugardalslaug Geothermal Pool. Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Those landing in Reykjavik looking to spend some time exploring during their layover can rent a car for about $58 per day.
Where are the least popular layover locations for Seattle to Copenhagen flights?
Seattle to Copenhagen flights have a layover in London the least frequently.
Can I find deals for flights from Seattle to Copenhagen that include hotel bookings?
Yes. In addition to deals on Seattle to Copenhagen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Copenhagen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Copenhagen.
Can I find deals for business class flights from Seattle to Copenhagen?
Yes. Cheapflights offers flight deals from Seattle to Copenhagen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to Copenhagen?
Currently, November is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of $523). Flying from Seattle to Copenhagen in June is currently the most expensive (average of $910). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Kastrup

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to Copenhagen

Portland to Copenhagen flights

Spokane to Copenhagen flights

Seattle to Billund flights

Seattle to Aarhus flights

Seattle to Aalborg flights

Walla Walla to Copenhagen flights

Bellingham to Copenhagen flights

Portland to Billund flights

Other flights to Copenhagen

Top 10 airlines flying from Seattle to Copenhagen

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest$418	Average$657	FlexibilityNo cancel fee	On-time77%
Icelandair	Cheapest$422	Average$587	FlexibilityNo cancel fee	On-time76%
Finnair	Cheapest$476	Average$715	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$486	Average$599	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$493	Average$686	FlexibilityNo cancel fee	On-time70%
Scandinavian Airlines	Cheapest$502	Average$728	FlexibilityNo cancel fee	On-time77%
Air Canada	Cheapest$536	Average$683	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$553	Average$739	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$553	Average$767	FlexibilityNo cancel fee	On-time76%
Delta	Cheapest$558	Average$786	FlexibilityNo cancel fee	On-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$268+ Cheap flights from Seattle (SEA) to Copenhagen (CPH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Copenhagen with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Kastrup Copenhagen are usually found in February or January, booked 90 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Seattle to Copenhagen

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Seattle to Copenhagen

Cheapest flights from Seattle to CopenhagenExplore the most affordable flight options available from Seattle to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Seattle to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Copenhagen that are best for you.

The best insider tips for Seattle to Copenhagen flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Copenhagen trip

Airports

SEA

CPH

Our travel experts

Best time to book a flight from Seattle to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Copenhagen

How far ahead should I book a flight from Seattle to Copenhagen?

What is the cheapest month to book a flight from Seattle to Copenhagen?

What is the cheapest time of day to fly from SEA to CPH?

What is the cheapest day to fly from Seattle to Copenhagen?

Reviews of airlines servicing Copenhagen

Read through reviews of airlines operating flights from Seattle to Copenhagen, such as Delta, Scandinavian Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Copenhagen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How popular is this Seattle to Copenhagen flight route?

How long is the flight from Seattle to Copenhagen?

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

What are the most reliable airlines from Seattle to Copenhagen?

What are the cheapest flights from Seattle to Copenhagen?

Where are the most common layover locations when flying from Seattle to Copenhagen?

What are some popular things to do or see while on a layover in Reykjavik?

Where are the least popular layover locations for Seattle to Copenhagen flights?

Can I find deals for flights from Seattle to Copenhagen that include hotel bookings?

How can I find direct flights from Seattle to Copenhagen?

Can I find deals for business class flights from Seattle to Copenhagen?

What is the cheapest month to book a flight from Seattle to Copenhagen?

Traveling to a place near Copenhagen?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Copenhagen

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Seattle to Copenhagen

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Seattle to Copenhagen
Explore the most affordable flight options available from Seattle to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.