--- title: "Seattle (SEA) to Helsinki (HEL) flights: who flies it" description: "Finnair flies Seattle (SEA) to Helsinki (HEL) nonstop about 3 times a week as AY 34, scheduled at 9h 30m. See award seats by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/sea-hel" url: "https://2lnr.com/routes/sea-hel.md" date_modified: "2026-10-18T05:10:47Z" --- # Seattle to Helsinki (SEA-HEL): nonstop flights and award space Finnair flies nonstop from Seattle (SEA) to Helsinki (HEL) just three times a week. In the timetable below it flies as AY 34, scheduled at 9h 30m for the 4,767 miles. 2LNR tracks award seats on Finnair across every SEA to HEL date, so you can see whether a seat exists before you move points. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See SEA to HEL on the interactive map [Get started free](https://2lnr.com/login) 3 Flights a week, 4-week average 9h 30m Scheduled flight time 4,767 mi Nonstop distance Free To get started ## Seattle to Helsinki flight schedule Scheduled nonstop departures for SEA to HEL starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Seattle (SEA) to Helsinki (HEL) | Date | Flight | Airline | Departs SEA | Arrives HEL | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Tue, Apr 6 | AY 34 | Finnair | 17:40 | 13:10 | 9h 30m | Airbus A330-300 | | Fri, Apr 9 | AY 34 | Finnair | 17:40 | 13:10 | 9h 30m | Airbus A330-300 | | Sun, Apr 11 | AY 34 | Finnair | 17:40 | 13:10 | 9h 30m | Airbus A330-300 | | Tue, Apr 13 | AY 34 | Finnair | 17:40 | 13:10 | 9h 30m | Airbus A330-300 | | Fri, Apr 16 | AY 34 | Finnair | 17:40 | 13:10 | 9h 30m | Airbus A330-300 | | Sun, Apr 18 | AY 34 | Finnair | 17:40 | 13:10 | 9h 30m | Airbus A330-300 | | Tue, Apr 20 | AY 34 | Finnair | 17:40 | 13:10 | 9h 30m | Airbus A330-300 | Showing all 7 scheduled SEA to HEL departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every SEA to HEL date on the interactive map ## Aircraft on the Seattle to Helsinki nonstop Finnair flies the Airbus A330-300 on every departure in the schedule table on this page. ## Award seats on SEA to HEL departures 2LNR tracks award seats on Finnair, date by date. Open the calendar for Seattle to Helsinki to see whether a seat exists before you move points, the next 14 days free on every product and the full horizon on Pro. ### See real availability Award seats by date on the SEA to HEL departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See SEA to HEL on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Seattle to Helsinki nonstop Carriers operating SEA to HEL nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show award space by date. - [Finnair (AY) route map](https://2lnr.com/routes/airlines/ay.md)\ [The aircraft AY flies](https://2lnr.com/seatmaps/ay.md) See SEA to HEL on the interactive map → ## Frequently asked questions about SEA to HEL **How long is the flight from Seattle (SEA) to Helsinki (HEL)?** AY 34 is scheduled at 9h 30m from Seattle (SEA) to Helsinki (HEL) on every departure in the schedule table on this page. The nonstop covers about 4,767 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SEA to HEL?** Finnair is currently the only airline flying SEA to HEL nonstop. 2LNR tracks award seats on Finnair. **How often does SEA to HEL operate?** The SEA to HEL nonstop currently runs three times a week, on Finnair. Thin schedules like this change by season, and on Pro an alert will catch anything added. **What time do flights from SEA to HEL depart?** In the next 7 days with service, every scheduled SEA to HEL nonstop leaves at 17:40 local time at Seattle. The schedule table on this page lists each departure by date. **Which flights operate SEA to HEL nonstop?** Finnair flies AY 34 nonstop from Seattle (SEA) to Helsinki (HEL), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft. **How do I check award availability on SEA to HEL?** Open the SEA to HEL route on the interactive map or the matrix to see award seats by date on Finnair, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [HEL to SEA nonstop flights and award space](https://2lnr.com/routes/hel-sea.md). Award seats rather than schedules? See [Finnair award availability](https://2lnr.com/awards/ay.md). Looking beyond this route? See [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md), or [every route from Helsinki (HEL)](https://2lnr.com/routes/hel.md). - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## See SEA to HEL award space by date See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)