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Find cheap KLM flights to Cardiff from $503

1 adult
0 bags
Sat 6/29
Sat 7/6

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Good to know

Low season

January

High season

September

Cheapest flight

$503

Average price round-trip

$1,275
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Boston to Cardiff
(price for this month)

When to book flights with KLM to Cardiff

Average price per month
Flight prices as travel date approaches

FAQs for flying to Cardiff with KLM

  • Which airport do KLM flights to Cardiff fly into?

    You’ll fly into Cardiff Airport when flying to Cardiff with KLM.

  • Are there any other airlines in SkyTeam that fly to Cardiff?

    Unfortunately, there are no other airlines in SkyTeam that fly to Cardiff.

KLM customer reviews

7.8
GoodBased on 1,520 verified guest reviews
7.9Boarding
7.2Entertainment
8.4Crew
7.4Food
7.7Comfort
Pros +
Cons -
Traveler rating:
Sort by:
A
4.0 Mediocre
Cons:Crew members in Amsterdam were very rude and disrespectful
A
4.3 Mediocre
Pros:Friendly crew
Cons:KLM lost one piece of my luggage
A
2.0 Poor
Cons:My girlfriend were scheduled to come back from Marrakech together (albeit on separate reservations), however KLM could not find her reservation in their system and would not let her on the plane. I had to leave her behind in Marrakech. KLM had the audacity to ask her to purchase another ticket, even though she clearly had a valid reservation (how else would she had gotten to Marrakech in the first place?). After arguing with KLM for many hours, they finally booked her on a flight the following day, but refused to put her up in a hotel for the night, or compensate her for the trouble. Completely irresponsible behaviour from KLM. Will never fly with them again.
R
7.0 Good
Pros:newer plane, good staff
Cons:need better and more food options, more often
R
4.3 Mediocre
Pros:staff was fine
Cons:old old plane, very uncomfortable. Tiny bad screen made movies pointless
C
8.8 Very good
Cons:The flight was a bit delayed, but the airline handled it incredibly well. I was put up in a great hotel with good free food and caught another flight the next morning.
C
10.0 Wonderful
Is nice to travel with this airline
A
10.0 Wonderful
Pros:The flight was perfect! Great food,movies and I even got to sleep !
Cons:All was well!
A
10.0 Wonderful
Pros:Everything is top notch for an airline company.
Cons:Nothing.... I enjoyed every moment of the flight.
A
2.0 Poor
Pros:He missed it due to having a 32 minute layover, which he ran all the way to board.
Cons:he had no choice but to look at the closed door of his flight, and wait an additional 7 hours and they didn't even give him a voucher for food. I'm his mother, I'm currently visiting family in Scotland, so couldn't help him much. I'm pretty disgusting and disappointed by the whole experience.
Read more about KLM

Book Cheap flights with KLM to Cardiff

Recent round-trip flight deals

11/12Tue
1 stopKLM
11h 10mIAD-CWL
12/12Thu
1 stopKLM
14h 45mCWL-IAD
$743
9/6Fri
2 stopsKLM
16h 40mDEN-CWL
9/8Sun
2 stopsKLM
17h 00mCWL-DEN
$748
11/12Tue
2 stopsKLM
16h 15mIAD-CWL
12/12Thu
1 stopKLM
14h 45mCWL-IAD
$748
11/12Tue
2 stopsKLM
16h 10mIAD-CWL
12/12Thu
2 stopsKLM
17h 28mCWL-IAD
$757
9/5Thu
2 stopsKLM
19h 45mDEN-CWL
9/9Mon
2 stopsKLM
18h 47mCWL-DEN
$807
11/7Thu
2 stopsKLM
16h 26mORD-CWL
11/14Thu
2 stopsKLM
16h 31mCWL-ORD
$807
8/23Fri
1 stopKLM
15h 20mBOS-CWL
8/30Fri
1 stopKLM
11h 55mCWL-BOS
$885
8/23Fri
1 stopKLM
15h 20mBOS-CWL
8/30Fri
2 stopsKLM
15h 05mCWL-BOS
$895
9/27Fri
1 stopKLM
10h 50mIAD-CWL
9/29Sun
1 stopKLM
10h 50mCWL-IAD
$906
8/3Sat
1 stopKLM
11h 20mBOS-CWL
8/31Sat
1 stopKLM
11h 55mCWL-BOS
$916
8/3Sat
1 stopKLM
11h 20mBOS-CWL
8/31Sat
2 stopsKLM
16h 43mCWL-BOS
$926
8/2Fri
1 stopKLM
18h 50mBOS-CWL
8/31Sat
1 stopKLM
11h 55mCWL-BOS
$946
8/2Fri
1 stopKLM
18h 50mBOS-CWL
8/31Sat
2 stopsKLM
16h 43mCWL-BOS
$956
9/20Fri
1 stopKLM
18h 55mLAX-CWL
9/27Fri
2 stopsKLM
19h 35mCWL-LAX
$966
9/27Fri
1 stopKLM
18h 20mIAD-CWL
9/29Sun
2 stopsKLM
14h 25mCWL-IAD
$1,075
8/31Sat
1 stopKLM
18h 20mIAD-CWL
9/9Mon
1 stopKLM
10h 50mCWL-IAD
$1,096
6/13Thu
1 stopKLM
10h 50mIAD-CWL
6/20Thu
1 stopKLM
10h 50mCWL-IAD
$1,146
6/12Wed
1 stopKLM
19h 15mSEA-CWL
6/19Wed
1 stopKLM
14h 50mCWL-SEA
$1,149
8/7Wed
2 stopsKLM
42h 45mIAD-CWL
8/14Wed
1 stopKLM
11h 15mCWL-IAD
$1,150
6/12Wed
1 stopKLM
19h 15mSEA-CWL
6/19Wed
1 stopKLM
14h 50mCWL-SEA
$1,164

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Recent one-way flight deals

10/28Mon
1 stopKLM
16h 45mBOS-CWL
$503
10/28Mon
2 stopsKLM
14h 11mBOS-CWL
$508
10/28Mon
1 stopKLM
18h 30mORD-CWL
$516
10/26Sat
1 stopKLM
16h 45mBOS-CWL
$553
10/26Sat
2 stopsKLM
14h 11mBOS-CWL
$558
7/23Tue
1 stopKLM
11h 40mJFK-CWL
$785
7/23Tue
2 stopsKLM
12h 15mLGA-CWL
$790
6/30Sun
1 stopKLM
18h 25mORD-CWL
$792
6/17Mon
1 stopKLM
18h 10mJFK-CWL
$1,960
6/16Sun
2 stopsKLM
12h 15mLGA-CWL
$1,965

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Flights to Cardiff - KLM

Destination:

Cardiff Wales (CWL)United Kingdom

Return flight deals:

Cardiff Wales - United States

Cabin classes:

First Class flights to Cardiff
Business Class flights to Cardiff

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