$203+ Cheap flights from Seattle (SEA) to Copenhagen (CPH)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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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 April, booked 26 days in advance, depart on a Monday or Sunday and return on a Tuesday
Cheap flight deals from Seattle to Copenhagen
Cheapest
Best
Last-minute
One-way
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, 2026.
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, 2026.
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:15 pm -
2 stops34h 05m
Mon 11/167:15 am -
1 stop13h 45m
Deal found 9/9![Lufthansa logo]()
$501
This Air Canada deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:05 pm -
2 stops54h 00m
Sat 11/149:50 am -
2 stops20h 09m
Deal found 9/7![Air Canada logo]()
$503
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:00 am -
2 stops18h 20m
Thu 11/266:05 am -
2 stops21h 17m
Deal found 9/10![Multiple Airlines logo]()
$504
This Gotogate deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:50 pm -
1 stop13h 10m
Wed 11/1111:35 am -
1 stop18h 24m
Deal found 9/9![Multiple Airlines logo]()
$505
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/287:45 am -
2 stops19h 40m
Sat 12/1211:35 am -
2 stops30h 57m
Deal found 9/9![Air Canada logo]()
$506
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:50 am -
2 stops22h 10m
Sun 11/111:35 am -
3 stops42h 21m
Deal found 9/10![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:45 am -
1 stop17h 35m
Thu 11/267:15 am -
1 stop13h 45m
Deal found 9/10![United Airlines logo]()
$508
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:35 pm -
1 stop16h 25m
Mon 11/25:05 pm -
1 stop32h 55m
Deal found 9/9![Icelandair logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:35 pm -
2 stops29h 45m
Mon 11/231:10 pm -
2 stops18h 57m
Deal found 9/6![United Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:17 pm -
2 stops29h 13m
Sun 11/1511:35 am -
2 stops44h 32m
Deal found 9/8![United Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2712:20 pm -
2 stops37h 00m
Tue 12/88:55 am -
3 stops37h 27m
Deal found 9/8![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:39 pm -
2 stops32h 41m
Tue 12/81:10 pm -
1 stop32h 50m
Deal found 9/6![United Airlines logo]()
$514
Best flights from Seattle to CopenhagenDiscover 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, 2026.
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, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:00 pm -
3 stops45h 30m
Sun 11/111:35 am -
2 stops43h 15m
Deal found 9/10![United Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am -
1 stop20h 45m
Tue 10/209:00 am -
1 stop23h 04m
Deal found 9/6![Delta logo]()
$581
This KLM deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:45 pm -
1 stop13h 35m
Tue 10/2011:10 am -
1 stop15h 37m
Deal found 9/8![Multiple Airlines logo]()
$640
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:23 pm -
2 stops31h 57m
Thu 11/129:50 am -
2 stops32h 50m
Deal found 9/9![United Airlines logo]()
$509
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:15 am -
1 stop14h 30m
Mon 10/51:55 pm -
1 stop15h 41m
Deal found 9/6![Delta logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:50 pm -
1 stop19h 40m
Tue 10/1312:45 pm -
2 stops31h 42m
Deal found 9/10![United Airlines logo]()
$580
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:59 pm -
1 stop22h 46m
Sat 10/179:00 am -
1 stop23h 04m
Deal found 9/7![Delta logo]()
$594
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:48 pm -
2 stops51h 02m
Fri 10/2312:45 pm -
2 stops36h 07m
Deal found 9/6![United Airlines logo]()
$585
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/143:25 pm -
1 stop16h 35m
Thu 1/146:45 am -
2 stops20h 45m
Deal found 9/6![Delta logo]()
$599
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:50 am -
2 stops27h 15m
Tue 10/2012:45 pm -
2 stops36h 06m
Deal found 9/6![United Airlines logo]()
$719
Last-minute flights from Seattle to CopenhagenDiscover last-minute flight deals from Seattle to Copenhagen. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Copenhagen. Data last updated September 11, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop11h 55m
Tue 10/271:05 pm -
1 stop12h 55m
Deal found 9/7![Icelandair logo]()
$521
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:50 am -
2 stops22h 10m
Sun 11/111:35 am -
3 stops42h 21m
Deal found 9/10![United Airlines logo]()
$507
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:50 pm -
1 stop14h 50m
Sun 11/16:05 am -
1 stop15h 55m
Deal found 9/10![Lufthansa logo]()
$514
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:00 pm -
3 stops45h 30m
Sun 11/111:35 am -
2 stops43h 15m
Deal found 9/10![United Airlines logo]()
$504
This Justfly.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:05 pm -
2 stops54h 00m
Mon 11/21:10 pm -
2 stops53h 22m
Deal found 9/10![Air Canada logo]()
$510
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:05 pm -
2 stops54h 00m
Mon 11/27:15 am -
1 stop13h 45m
Deal found 9/10![Multiple Airlines logo]()
$518
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:05 pm -
2 stops54h 00m
Sat 10/311:10 pm -
1 stop32h 50m
Deal found 9/10![Multiple Airlines logo]()
$520
This Air Canada deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:05 pm -
2 stops54h 00m
Sat 11/149:50 am -
2 stops20h 09m
Deal found 9/7![Air Canada logo]()
$503
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:35 pm -
1 stop16h 25m
Mon 11/25:05 pm -
1 stop32h 55m
Deal found 9/9![Icelandair logo]()
$509
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:00 am -
2 stops42h 05m
Sat 11/76:45 am -
2 stops23h 02m
Deal found 9/10![Multiple Airlines logo]()
$516
This Justfly.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:50 pm -
1 stop12h 35m
Sat 11/77:15 am -
1 stop13h 45m
Deal found 9/9![Lufthansa logo]()
$522
One-way flights from Seattle to CopenhagenSearch for one-way flight options from Seattle to Copenhagen. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Seattle to Copenhagen. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Icelandair logo]()
$203
This Flightnetwork deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/103:40 pm -
1 stop21h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$204
This Booking.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 pm -
1 stop17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$205
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:40 pm -
1 stop12h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$206
This Mytrip deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:00 pm -
1 stop17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Icelandair logo]()
$207
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:35 pm -
1 stop16h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$209
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:40 pm -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$210
This Justfly.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 pm -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$211
This Justfly.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:00 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$213
This SmartFares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:55 pm -
Nonstop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Scandinavian Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:35 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$222
Find 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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $501 (Mytrip) |
One-way from | $203 (Mytrip) |
Popular in | December |
Cheapest in | February |
Average price | $609 |
Good round-trip deal | $537 or less |
Good one-way deal | $568 or less |
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 7,457,451 searches. Data last updated September 11, 2026.
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
Cheapest round-trip
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Sat 10/10
3:40 pm-9:45 pm
1 stop21h 05m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$204
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Thu 10/29
3:35 pm-7:45 pm
1 stop20h 10m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$206
Quickest round-trip
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Sun 9/20
3:55 pm-10:10 am
Nonstop9h 15m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$229
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Mon 10/19
10:30 am-10:45 pm
2 stops27h 15m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$317
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Thu 10/29
7:20 am-11:45 am
2 stops20h 25m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$321
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Fri 10/30
9:59 pm-11:45 am
2 stops29h 46m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$322
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Sun 9/20
7:00 pm-12:55 pm
1 stop32h 55m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$324
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Wed 10/7
7:20 am-9:45 pm
2 stops29h 25m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$324
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Thu 11/12
2:35 pm-7:45 pm
1 stop20h 10m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$331
SeattleCopenhagen
SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen
SEACPH
Seattle/Tacoma Intl
Thu 11/12
2:35 pm-1:00 pm
2 stops37h 25m
Kastrup Copenhagen
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$344
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Seattle to Copenhagen
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Copenhagen in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Copenhagen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Copenhagen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Copenhagen flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Copenhagen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Copenhagen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
SEA-CPH
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 25 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, February is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of $487). Flying from Seattle to Copenhagen in December is currently the most expensive (average of $850). 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 September 11, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Copenhagen as you normally would.
The best insider tips for Seattle to Copenhagen flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Copenhagen trip
Our travel experts
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 September 11, 2026.
Read through reviews of airlines operating flights from Seattle to Copenhagen, such as Delta,Scandinavian Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Traveling to a place near Copenhagen?
Book flights to Copenhagen if you plan to visit one of these locationsKastrup
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Complete your trip
Complete your trip to Copenhagen by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Copenhagen
Explore flights to Copenhagen departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
Search flights from Seattle to Copenhagen by cabin class
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Seattle and Copenhagen flights
Browse other Seattle and Copenhagen flight options. Last updated on September 11, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Seattle to Copenhagen
Discover the top 10 airlines 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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$371 | Average$431 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$422 | Average$579 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$469 | Average$623 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$482 | Average$623 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$482 | Average$571 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$501 | Average$789 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$506 | Average$678 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$506 | Average$775 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$512 | Average$664 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$524 | Average$649 | FlexibilityNo cancel fee | On-time75% |