Cheap flights from Washington, D.C., United States to Cardiff, United Kingdom

Flights starting at £245. Choose between Aer Lingus, easyJet, or KLM Royal Dutch Airlines to find the best price.

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Travelers usually depart from Baltimore–Washington International, Washington Dulles International, or Ronald Reagan Washington National when they travel from Washington, D.C. to Cardiff. The most popular airlines for this route are Aer Lingus, easyJet, KLM Royal Dutch Airlines, British Airways, and TAP Portugal. Washington, D.C. and Cardiff have 308 direct flights per week. When you arrive at Cardiff, consider visiting Tintern Abbey, United Kingdom, Stonehenge, St Fagans: National History Museum, Brecon Beacons, Avebury, St. David's Cathedral, Cardiff, and Roman Baths, Bath.

Check-in for a flight from Washington, D.C. to Cardiff

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Aer LingusEINEINoOpens 48 days before flight
Closes 5 hours before flight
easyJetEZYU2NoOpens 720 days before flight
Closes 2 hours before flight
KLM Royal Dutch AirlinesKLMKLNoOpens 30 days before flight
Closes 1 hours before flight
British AirwaysBAWBANo0
0
TAP PortugalTAPTPNoOpens 36 days before flight
Closes 1 hours before flight

Weather in Cardiff

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C3°C
February8°C3°C
March10°C4°C
April12°C5°C
May15°C8°C
June17°C11°C
July19°C13°C
August19°C13°C
September17°C11°C
October14°C9°C
November10°C6°C
December8°C4°C
Hottest Month
19°C
July
Coldest month
3°C
January
Sunny days
261
days per year

14 day forecast

Friday
22 Mar
92%
10°C5°C
29 Mar
88%
10°C7°C
Saturday
23 Mar
88%
8°C4°C
30 Mar
79%
12°C5°C
Sunday
24 Mar
73%
9°C4°C
31 Mar
88%
12°C6°C
Monday
25 Mar
83%
9°C7°C
1 Apr
79%
12°C6°C
Tuesday
26 Mar
77%
9°C6°C
2 Apr
84%
8°C7°C
Wednesday
27 Mar
87%
9°C5°C
3 Apr
83%
10°C6°C
Thursday
28 Mar
85%
10°C4°C
4 Apr
84%
9°C4°C

Frequently asked questions

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What are the most popular routes to and from Cardiff?
Which airports are there in Washington, D.C.?
What airports are near Washington, D.C.?
What airports are near Cardiff?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Washington, D.C. and Cardiff?
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What flights operate between Washington, D.C. and Cardiff?
How many airports are there near Washington, D.C.?
How many airports are there near Cardiff?
What time do nonstop (direct) flights between Washington, D.C. and Cardiff depart?
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What time do flights between Washington, D.C. and Cardiff depart?
What time do flights between Washington, D.C. and Cardiff arrive?

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