Seattle to Copenhagen BFI, SEA → CPH
Boeing Field International Airport (BFI), Seattle-Tacoma International Airport (SEA) → Copenhagen Airport (CPH)
The cheapest one-way found recently is $220 with Icelandair, 25 Oct, found 6 days ago.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $260 to $545.
Cheapest one-way found recently
$220
25 Oct · Icelandair
Seattle-Tacoma International Airport (SEA) → Copenhagen Airport (CPH)
Leaves 7:10 p.m. · 11 h 45 min trip
stops unknown
found 6 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$220 25 Octfound 6 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 17 days, 28 Sept to 18 Oct, the cheapest one-way we saw each day was $217 to $347.
17 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 25 Oct to 17 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 25 Oct to compare.
Every date we hold
5 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 25 Oct | $220 | Icelandair | Seattle-Tacoma International Airport (SEA) → Copenhagen Airport (CPH) | stops unknown | found 6 days ago | Open this trip |
| 11 Dec | $300 | Icelandair | Seattle-Tacoma International Airport (SEA) → Copenhagen Airport (CPH) | 1 stop | found 6 days ago | Open this trip |
| 17 Dec | $789 | Alaska Airlines | Seattle-Tacoma International Airport (SEA) → Copenhagen Airport (CPH) | 2 stops | found 6 days ago | Open this trip |
Which month looks cheapest?
October 2026 is the cheapest month — from $220.
Airlines on the cheapest dates: Icelandair, Alaska Airlines.
Premium cabin fares from Seattle to Copenhagen
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 25 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seattle to Copenhagen?
One-way
Not enough history yet: in 17 days of one-way prices, 28 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest one-way found recently is for 25 Oct. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work