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Cheap flights from Seattle to Copenhagen from C$ 533

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
17 jun. — 24 jun.1
1 adult

Cheap flight deals from Seattle to Copenhagen

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Copenhagen (CPH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 junio 2025.

Round-trip from

C$ 736

One-way from

C$ 533

Popular in

June

Cheapest in

February

Average price

C$ 1,062

Good round-trip deal

C$ 739 or less
United Airlines
  • United Airlines
  • 10/8-22/8
  • 4 total stops
  • 68h 09m total
  • Seattle to Copenhagen
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Delta
  • Delta
  • 3/8
  • 2 total stops
  • 24h 00m total
  • Seattle to Copenhagen
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Highest demand for flights based on searches. 10% potential increase in price (C$ 140 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 24 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Kastrup Copenhagen.
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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 12 junio 2025.

dom. 10/812:20 a.m.SEA - CPH
2 stops32h 00mUnited Airlines
vie. 22/812:25 p.m.CPH - SEA
2 stops36h 09mUnited Airlines
Deal found 12/6C$ 736
vie. 8/83:45 p.m.SEA - CPH
1 stop12h 10mIcelandair
jue. 21/82:00 p.m.CPH - SEA
1 stop12h 50mIcelandair
Deal found 12/6C$ 745
dom. 12/109:55 p.m.SEA - CPH
1 stop23h 35mDelta
jue. 23/106:00 a.m.CPH - SEA
2 stops21h 30mDelta
Deal found 12/6C$ 746
mié. 2/74:00 p.m.SEA - CPH
Nonstop9h 30mScandinavian Airlines
lun. 28/71:05 p.m.CPH - SEA
Nonstop9h 45mScandinavian Airlines
Deal found 10/6C$ 752
mar. 7/101:30 p.m.SEA - CPH
1 stop20h 45mFinnair
mié. 22/108:40 a.m.CPH - SEA
2 stops19h 14mFinnair
Deal found 10/6C$ 763
mié. 3/98:20 p.m.SEA - CPH
1 stop18h 10mMultiple Airlines
mié. 1/108:40 a.m.CPH - SEA
2 stops19h 29mMultiple Airlines
Deal found 10/6C$ 764
dom. 12/1012:45 p.m.SEA - CPH
2 stops18h 00mBritish Airways
jue. 23/107:05 a.m.CPH - SEA
2 stops21h 59mBritish Airways
Deal found 12/6C$ 766
mié. 3/910:00 a.m.SEA - CPH
2 stops15h 50mLufthansa
mié. 1/106:10 a.m.CPH - SEA
2 stops17h 06mLufthansa
Deal found 10/6C$ 777
dom. 28/91:45 p.m.SEA - CPH
2 stops34h 10mSWISS
vie. 10/106:40 a.m.CPH - SEA
2 stops20h 56mSWISS
Deal found 12/6C$ 846
dom. 6/71:50 p.m.SEA - CPH
1 stop13h 00mKLM
dom. 20/77:05 p.m.CPH - SEA
1 stop25h 30mKLM
Deal found 11/6C$ 904
jue. 7/85:40 p.m.SEA - CPH
1 stop13h 35mAmerican Airlines
mar. 19/82:00 p.m.CPH - SEA
2 stops18h 40mAmerican Airlines
Deal found 12/6C$ 915

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Copenhagen 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, Cheapflights users made 629,999 searches. Data last updated 12 junio 2025.
Use the filters below to find and compare flights from Seattle to Copenhagen that are best for you.

Fly from

Seattle

Fly to

Copenhagen

Route

Depart

Return

Price

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 10/8

12:20 a.m.-5:20 p.m.

2 stops32h 00m

Kastrup Copenhagen

vie. 22/8

12:25 p.m.-3:34 p.m.

2 stops36h 09m

C$ 736

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

vie. 8/8

3:45 p.m.-12:55 p.m.

1 stop12h 10m

Kastrup Copenhagen

jue. 21/8

2:00 p.m.-5:50 p.m.

1 stop12h 50m

C$ 745

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 12/10

9:55 p.m.-6:30 a.m.

1 stop23h 35m

Kastrup Copenhagen

jue. 23/10

6:00 a.m.-6:30 p.m.

2 stops21h 30m

C$ 746

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 2/7

4:00 p.m.-10:30 a.m.

Nonstop9h 30m

Kastrup Copenhagen

lun. 28/7

1:05 p.m.-1:50 p.m.

Nonstop9h 45m

C$ 752

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mar. 7/10

1:30 p.m.-7:15 p.m.

1 stop20h 45m

Kastrup Copenhagen

mié. 22/10

8:40 a.m.-6:54 p.m.

2 stops19h 14m

C$ 763

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 3/9

8:20 p.m.-11:30 p.m.

1 stop18h 10m

Kastrup Copenhagen

mié. 1/10

8:40 a.m.-7:09 p.m.

2 stops19h 29m

C$ 764

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 12/10

12:45 p.m.-3:45 p.m.

2 stops18h 00m

Kastrup Copenhagen

jue. 23/10

7:05 a.m.-8:04 p.m.

2 stops21h 59m

C$ 766

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 3/9

10:00 a.m.-10:50 a.m.

2 stops15h 50m

Kastrup Copenhagen

mié. 1/10

6:10 a.m.-2:16 p.m.

2 stops17h 06m

C$ 777

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 28/9

1:45 p.m.-8:55 a.m.

2 stops34h 10m

Kastrup Copenhagen

dom. 5/10

3:05 p.m.-6:36 p.m.

2 stops36h 31m

C$ 846

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 22/6

5:35 p.m.-4:10 p.m.

1 stop13h 35m

Kastrup Copenhagen

lun. 30/6

6:00 a.m.-11:40 a.m.

1 stop14h 40m

C$ 864

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 18 results
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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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Copenhagen. Price data was last updated on 9 June 2025.

The best time to book flights from Seattle to Copenhagen is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of C$ 591). Flying from Seattle to Copenhagen in July is currently the most expensive (average of C$ 871). 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?

Find hourly flight availability from Seattle to Copenhagen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 junio 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 8% on flights from Seattle to Copenhagen by exploring options for tickets in the morning.

Rainfall in Copenhagen by month

Plan your trip to Copenhagen by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Copenhagen ranges from 20.0 - 70.0 mm per month. August is typically the wettest month, when rainfall can reach 70.0 mm. February is typically the driest time to visit Copenhagen when rainfall is around 20.0 mm.

Temperature in Copenhagen by month

Plan your trip to Copenhagen by taking into account the average temperature totals by month.

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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing Copenhagen

Get insights into the airlines that provide service to Copenhagen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Copenhagen. Reviews last updated 12 junio 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and KLM from Seattle to Copenhagen to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
KLM
7.8
Good
1,358 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Finnair
7.6
Good
1,290 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
SWISS
7.5
Good
1,623 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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.

  • What airports do I use to fly from Seattle to Copenhagen?

    To fly from Seattle to Copenhagen, you need to book a flight from Seattle/Tacoma Intl (SEA) to Kastrup Copenhagen (CPH). Nonstop flights to Kastrup Copenhagen from Seattle/Tacoma Intl take 25h 51m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Seattle/Tacoma Intl to Kastrup Copenhagen offered by 1 airline.

  • How popular is this Seattle to Copenhagen flight route?

    The Seattle/Tacoma Intl to Kastrup Copenhagen flight path was viewed by 25 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Flying on United Airlines is currently your cheapest option to Copenhagen, with prices starting at C$ 736. Additional round-trip tickets that might be worth considering are offered by Icelandair and Delta, with the lowest prices starting at C$ 745 and C$ 746, respectively. These flights start at 16% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as C$ 533. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Seattle to Copenhagen for a low price.

  • What are the cheapest flights from Seattle to Copenhagen?

    While on average a flight from Seattle to Copenhagen is generally C$ 765, our data shows the cheapest flight currently is C$ 651. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 898 for that flight.

  • 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, February is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of C$ 591). Flying from Seattle to Copenhagen in July is currently the most expensive (average of C$ 871). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to Copenhagen

Discover the top airline that operate flights from Seattle to Copenhagen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 junio 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 629AverageC$ 756FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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How does Cheapflights help users find flights from Seattle to Copenhagen?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Copenhagen. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Copenhagen?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Copenhagen.

Can Cheapflights find flights from Seattle to Copenhagen with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Copenhagen flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle to Copenhagen become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Copenhagen flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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