The Seattle–Lisbon route
Seattle to Lisbon is a transatlantic search from a US airport. You leave Seattle-Tacoma International (SEA) and land at Humberto Delgado (LIS) in Portugal, about 5,203 miles away. This city pair is usually a connecting trip: about 5,203 miles of flying, with the shortest timed itineraries near 10.5 hours plus a layover.
For SEA–LIS we show about $389 on the low end and around $670 as a more typical one-way economy total, USD, last reviewed August 2026. Long-haul sale banners expire; a $389 one-way is a planning floor, not a coupon. Taxes, bags, and seats change what you pay on the seller site.
Search SEA to LIS on Azurovia, compare airline-direct and travel-site totals on the same flights, then finish with the seller. We do not ticket. Keep their confirmation for changes.
Distance and time SEA–LIS
Seattle and Lisbon sit about 5,203 miles apart. If a nonstop is missing from SEA, timed itineraries near 10.5 hours of flying usually mean one long-haul plus a shorter feeder — not two equal hops.
Lisbon is about 8 hours ahead of Seattle on standard time (America/Los_Angeles vs Europe/Lisbon). Arrival clocks on LIS are local. That matters more on this pair than on a same-zone hop.
Most Seattle–Lisbon journeys connect rather than fly nonstop from SEA. Timed one-stop itineraries often bank at John F. Kennedy International (JFK), Newark Liberty International (EWR), O'Hare International (ORD). That is a pattern, not a promise for your dates. On results, sort by fastest if you care about layover pain, or cheapest if you do not.
Airports for Seattle to Lisbon
You depart Seattle-Tacoma International in Seattle, United States, and arrive at Humberto Delgado in Lisbon, Portugal. SEA is the origin code we use on this guide; LIS is the arrival code. If you need a visa or an ESTA, that is between you and the destination government — Azurovia does not ticket and does not process immigration.
SEA is the only origin code we list in this metro. LIS is the arrival code we treat as primary for Lisbon. A cheaper nearby airport only wins if the transfer still fits your plan. Search with “include nearby airports” when you want those codes in one results list.
Airport pages: SEA Seattle-Tacoma International · LIS Humberto Delgado
City hubs: Flights from Seattle · Flights to Lisbon
Bags on SEA–LIS
Long-haul SEA–LIS fares sometimes include a checked bag on the airline site and unbundle it on a travel site, or the reverse. Rank the USD total you will actually pay, including bags, before you click out. Azurovia does not ticket.
Airlines often shown
British Airways is among the names that commonly appear on SEA–LIS, alongside Air France, Lufthansa, Virgin Atlantic. That is who often operates or sells this city pair in our catalog, not a daily guarantee. Live search is the inventory that exists for your dates.
When people fly
Shoulder periods around May and Jun are the usual hunting ground for this transatlantic pair, with Sep and Oct also worth a look. August and Christmas weeks are a different market. Search nearby dates rather than trusting a month name.
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Questions about this city pair
How long is the flight from Seattle to Lisbon?
There is usually no nonstop. Plan on about 10.5 hours of flying (5,203 miles) plus layover time.
When are Seattle to Lisbon fares often lower?
Demand is usually softer in May and Jun on this route, but live prices move daily. Search a few nearby dates rather than assuming a season is always cheapest.
Which airlines fly Seattle to Lisbon?
Sellers commonly show British Airways, Air France, Lufthansa, Virgin Atlantic on this city pair. The set on any given day depends on schedule and which travel sites return a fare.
What do Seattle–Lisbon tickets usually cost?
Guide one-way economy totals cluster around $670, with sales near $389, in USD. Those are not a quote — live search is the price that matters.
Is SEA–LIS the only airport pair for this trip?
This guide uses SEA and LIS as the primary codes. If a seller offers another airport, it will show on live results when you include nearby airports.
Do I book Seattle–Lisbon with Azurovia?
No. Azurovia is a US metasearch. You compare airline and travel-site totals here, then complete the ticket with the seller you choose.