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Cheap flights from Seattle to Copenhagen from C$ 357

SEA — CPH
12 Nov — 19 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Copenhagen

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Copenhagen

Wed 28/1010:56 p.m. -
2 stops26h 09m
Sat 7/117:15 a.m. -
1 stop13h 45m
Deal found 9/10C$ 725
Wed 28/1010:56 p.m. -
2 stops26h 09m
Tue 17/118:55 a.m. -
2 stops18h 31m
Deal found 12/10C$ 728
Tue 20/106:50 p.m. -
1 stop19h 40m
Sun 8/116:05 a.m. -
1 stop15h 55m
Deal found 8/10C$ 729
Mon 19/101:20 p.m. -
2 stops25h 05m
Wed 4/116:45 a.m. -
2 stops25h 22m
Deal found 10/10C$ 730
Fri 23/106:50 p.m. -
1 stop19h 40m
Mon 9/119:50 a.m. -
2 stops22h 28m
Deal found 8/10C$ 733
Sat 7/113:35 p.m. -
2 stops22h 35m
Sun 22/118:55 a.m. -
1 stop13h 05m
Deal found 11/10C$ 735
Fri 6/117:04 p.m. -
2 stops30h 16m
Mon 23/116:05 a.m. -
2 stops26h 13m
Deal found 11/10C$ 736
Wed 28/103:50 p.m. -
1 stop17h 45m
Mon 9/117:15 a.m. -
1 stop13h 45m
Deal found 9/10C$ 739
Fri 23/106:50 p.m. -
1 stop19h 40m
Sat 14/117:15 a.m. -
1 stop13h 45m
Deal found 8/10C$ 740
Fri 23/106:50 p.m. -
1 stop19h 40m
Tue 10/116:05 a.m. -
2 stops21h 21m
Deal found 8/10C$ 743
Mon 26/107:35 p.m. -
3 stops32h 50m
Mon 16/119:50 a.m. -
2 stops32h 50m
Deal found 12/10C$ 745
Mon 2/113:35 p.m. -
2 stops22h 35m
Thu 5/117:15 a.m. -
1 stop13h 45m
Deal found 12/10C$ 746

Find flight deals from Seattle to Copenhagen

Round-trip from

C$ 723

One-way from

C$ 357

Popular in

December

Cheapest in

February

Average price

C$ 823
United Airlines
  • United Airlines
  • 11/4-26/4
  • 3 total stops
  • 47h 09m total
  • Seattle to Copenhagen
Search Deals
Icelandair
  • Icelandair
  • 11/4-31/12
  • 1 total stop
  • 12h 15m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

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

Cheapest round-trip

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 9/4

2:10 p.m.-6:15 p.m.

1 stop19h 05m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 489

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Thu 11/3

1:50 p.m.-6:25 p.m.

1 stop19h 35m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 489

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sat 20/3

11:50 p.m.-11:10 p.m.

2 stops39h 20m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 504
Quickest round-trip

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Tue 24/11

7:45 a.m.-10:20 a.m.

1 stop17h 35m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 532

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 9/4

12:15 p.m.-10:50 a.m.

3 stops37h 35m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 561

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sat 5/12

7:00 a.m.-10:20 a.m.

2 stops18h 20m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 703

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Wed 21/10

12:43 p.m.-10:50 a.m.

3 stops37h 07m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 709

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Tue 20/10

12:43 p.m.-10:50 a.m.

3 stops37h 07m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 709

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Tue 10/11

7:00 a.m.-10:20 a.m.

2 stops18h 20m

Kastrup Copenhagen

Sat 14/11

8:55 a.m.-5:59 p.m.

2 stops18h 04m

C$ 728

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Mon 9/11

7:35 p.m.-10:20 a.m.

2 stops29h 45m

Kastrup Copenhagen

Mon 16/11

10:05 a.m.-1:25 p.m.

3 stops36h 20m

C$ 729

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

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 best time to book flights from Seattle to Copenhagen is 76 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$ 715). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,244). 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?

When flying from Seattle to Copenhagen, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Seattle to Copenhagen?

Airfare is below average for this route at the moment.

Seattle to Copenhagen flights typically cost between C$ 755 and C$ 964 in April.
The cheapest round-trip price found within the last 5 days was C$ 723 on United Airlines (11 Apr-26 Apr).

Reviews of airlines servicing Copenhagen

Check out reviews from past customers who have flown with Scandinavian Airlines,Icelandair, andLufthansa from Seattle to Copenhagen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
2,017 reviews
Check prices

Entertainment

6.8

Comfort

7.4

Food

6.8

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Scandinavian Airlines
7.4
Good
2,017 reviews
Scandinavian Airlines
7.4
Good
2,017 reviews
Check prices

Entertainment

6.8

Comfort

7.4

Food

6.8

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Icelandair
6.9
Okay
758 reviews
Scandinavian Airlines
7.4
Good
2,017 reviews
Check prices

Entertainment

6.8

Comfort

7.4

Food

6.8

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Lufthansa
6.8
Okay
8,278 reviews
Scandinavian Airlines
7.4
Good
2,017 reviews
Check prices

Entertainment

6.8

Comfort

7.4

Food

6.8

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Related info for your journey

  • How popular is this Seattle to Copenhagen flight route?

    The Seattle/Tacoma Intl to Kastrup Copenhagen flight path was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Copenhagen?

    For as low as C$ 725, United Airlines can have you in Copenhagen from Seattle in 26h 09m. There are 7805 km between Seattle and Copenhagen.

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

    Flying on Icelandair is currently your cheapest option to Copenhagen, with prices starting at C$ 682. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and Lufthansa, with the lowest prices starting at C$ 695 and C$ 732, respectively. These flights start at 24% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Seattle to Copenhagen?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Copenhagen on time: Air France (77%), Scandinavian Airlines (77%), Delta (77%).

  • 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$ 715). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,244). 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

Top 3 airlines flying from Seattle to Copenhagen

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 682AverageC$ 837FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 695AverageC$ 1,106FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapestC$ 732AverageC$ 733FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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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?

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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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