Cheap flights from Washington to Cardiff – Compare and Save
SEA — CWL
6 May — 13 May1
Return
1 adult
Economy
Find flight deals from Washington to Cardiff
Cheapest flights from Washington to CardiffExplore the most affordable flight options available from Washington to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.
Explore the most affordable flight options available from Washington to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.
Sat 13/917:40SEA - CWL
1 stop31h 35mKLM
Fri 19/909:50CWL - SEA
1 stop33h 55mKLM
Deal found 30/4£787
Sat 13/913:40SEA - CWL
2 stops19h 05mMultiple Airlines
Fri 19/909:50CWL - SEA
1 stop14h 15mMultiple Airlines
Deal found 30/4£893
Sat 13/920:20SEA - CWL
2 stops31h 10mMultiple Airlines
Fri 19/909:00CWL - SEA
2 stops34h 35mMultiple Airlines
Deal found 30/4£897
Thu 12/607:05SEA - CWL
2 stops39h 40mMultiple Airlines
Thu 19/607:55CWL - SEA
1 stop17h 55mMultiple Airlines
Deal found 30/4£967
Fri 13/616:00SEA - CWL
3 stops33h 15mMultiple Airlines
Fri 20/609:50CWL - SEA
3 stops36h 00mMultiple Airlines
Deal found 30/4£997
Thu 12/617:35SEA - CWL
1 stop15h 10mDelta
Thu 19/609:50CWL - SEA
1 stop14h 05mDelta
Deal found 30/4£1,001
Fri 13/617:35SEA - CWL
1 stop31h 40mKLM
Fri 20/609:50CWL - SEA
1 stop14h 05mKLM
Deal found 30/4£1,003
Fri 13/607:50SEA - CWL
2 stops17h 20mDelta
Fri 20/609:50CWL - SEA
1 stop14h 05mDelta
Deal found 30/4£1,005
Thu 12/609:07SEA - CWL
2 stops16h 08mKLM
Thu 19/609:50CWL - SEA
2 stops18h 34mKLM
Deal found 30/4£1,013
Sat 14/607:17SEA - CWL
2 stops45h 28mMultiple Airlines
Sat 21/609:00CWL - SEA
1 stop16h 50mMultiple Airlines
Deal found 30/4£1,047
Thu 12/607:05SEA - CWL
3 stops28h 10mMultiple Airlines
Thu 19/607:55CWL - SEA
3 stops44h 46mMultiple Airlines
Deal found 30/4£1,086
Thu 12/607:05SEA - CWL
3 stops28h 10mMultiple Airlines
Thu 19/607:55CWL - SEA
2 stops20h 45mMultiple Airlines
Deal found 30/4£1,089