Cheap Flights from Seattle to Swansea

View €472 flight on Mon, 18 Aug 2025Opens in a new window

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Cheap flights from Seattle to Swansea (SEA-SWS)

Prices were available within the past 7 days and start at €472 for one-way flights and €791 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
CWL
Cardiff
€791 Return, found 2 days ago
€791
Return
found 2 days ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Cardiff, returning Mon, 25 Aug, priced at €791 found 2 days ago
Virgin Atlantic
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
CWL
Cardiff
€791 Return, found 2 days ago
€791
Return
found 2 days ago
Select Virgin Atlantic flight, departing Mon, 18 Aug from Seattle to Cardiff, returning Mon, 25 Aug, priced at €791 found 2 days ago
Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
CWL
Cardiff
€796 Return, found 2 days ago
€796
Return
found 2 days ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Cardiff, returning Mon, 25 Aug, priced at €796 found 2 days ago
Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
CWL
Cardiff
€813 Return, found 2 days ago
€813
Return
found 2 days ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Cardiff, returning Mon, 25 Aug, priced at €813 found 2 days ago
Air France
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
CWL
Cardiff
€835 Return, found 2 days ago
€835
Return
found 2 days ago
Select Air France flight, departing Mon, 18 Aug from Seattle to Cardiff, returning Mon, 25 Aug, priced at €835 found 2 days ago
KLM
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
CWL
Cardiff
€835 Return, found 2 days ago
€835
Return
found 2 days ago
Select KLM flight, departing Mon, 18 Aug from Seattle to Cardiff, returning Mon, 25 Aug, priced at €835 found 2 days ago
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