Find cheap flights from Seattle to Wales

Find cheap flights from Seattle to Wales

Search hundreds of travel sites at once for deals on flights to Wales

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Wed 28/7
Wed 4/8
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Good to know - Cheap tickets from Seattle to Wales

Low season

MayBest time to beat the crowds (7% less expensive on average)

High season

JuneMost popular time to fly (8% more expensive on average)

Average price (return flight)

£809(price for this month)

Top tips for finding a cheap flight from Seattle to Wales

  • High season is considered to be January, February and December. The cheapest month to fly from Seattle to Wales is January.
  • Morning departure is around 2% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs - booking Seattle to Wales flights

How long is the flight to Wales from Seattle?

Can I fly to Wales? Are there any travel restrictions when entering Wales?

Can I fly to Wales without having to quarantine on arrival?

Do I need to take a coronavirus (Covid-19) test before flying to Wales?

Can vaccinated people travel to Wales?

What documents do I need to fly to Wales?

What other coronavirus (Covid-19) restrictions are there in Wales?

How does KAYAK find such low prices on flights from Seattle to Wales?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Wales?

What is the Hacker Fare option on flights from Seattle to Wales?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Wales?

Top airlines flying Seattle/Tacoma Intl to Wales

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 29,565 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Pros: "Amazing"
Cons: "Nothing"

Cons: "It was fabulous as always! Thank you. I love Delta!"

Cons: "Too hot. Bathrooms were dirty. No leg space in comfort+."

Pros: "Great seat and always on time."

Pros: "The cabin was to warm"
Cons: "The cabin was to warm"

Cons: "Announcements were too loud in earphones (could damage ear drums) and entertainment was turned off while waiting 30 min for the gate to open."

Pros: "Everything! Thank you"
Cons: "Nothing. Thanks"

Cons: "Food really bad on both segments."

Pros: "The crew was amazing."
Cons: "Cleanliness"

Cons: "Compared to Virhin Australia crew, Delta staff seem almost poorly trained in comparison. For example, Drlta crew don’t check your pass, don’t immediately move down the aisle to move along tourists busy discussing their seats and then line up for Boarding seems chaotic at best."

Pros: "Nothing"
Cons: "Nothing"

Pros: "Seat was decent and only a $10 upgrade. Worth it!"
Cons: "Wasn’t clear what boarding group was up. I don’t usually fly delta so maybe I’m just not used to the system but something on the video screen at the gate saying where they were in boarding would have helped. I wasn’t the only one that seemed lost."

Cons: "Departure delayed by 1hr30"

Cons: "N-S"

Pros: "The food was improved and the seat was comfortable."

Pros: "Awesome prompt and courteous service."
Cons: "Nothing"

Pros: "Super friendly staf, big enough seat, good enough food, enough room for luggage."
Cons: "Seat was smaller than EVA and food not quite as good."

Pros: "."

Cons: "Did not serve the food we asked Limited choice of movies"

Pros: "I loved flying delta comfort. I’m going to do it more often."

Cons: "Old cramped untidy and limited drink service"

Pros: "Nothing"
Cons: "Multilpe delays"

Pros: "This was our first time flying Delta and it was a very pleasurable experience. Boarding was very straight forward and the seats allocated comfortable. A surprise for us was being asked if we would like to move seats from the back of the aircraft to Comfort Economy (we think it was to do with weight balance! but appreciated very much none the less). The flight attendants were very professional and helpful, as you would hope all attendants on all airlines would be. We'd gladly fly Delta again anytime."

Pros: "Great"
Cons: "Too many announcements"

Pros: "Alaska Airlines is way overpriced and way less comfortable than Delta. I’m a Delta loyalist forever now!"
Cons: "Nothing."

Pros: "Nothing really"
Cons: "Flight delay further to the 30 minutes additional 20 min due to crew being not there"

Cons: "We waited 3 hours for the tarmac in Seattle On Christmas"

Pros: "Makes all the difference to have Flight attendants and pilots all wonderful. Gratefully, ~Elana"

Cons: "Too crowded."

Cons: "No drink or snack service. No trash pick up. No option to purchase or rent headphones"

Pros: "Fast and efficient boarding again! Most impressed!"

Pros: "everything was very nice"

Cons: "As a Platinum AFK/KLM Skyteam member I was NOT allowed to use the Delta Lounge. On the flight the meal choice was poor and the staff were not really geared to serving regular clients. The movie choice was poor. I expected better!"

Pros: "Enjoyed food and movies.Woul"
Cons: "Would like more comedy or romance movies. Becky"

Cons: "Late and missed my international connection"

Pros: "Free entertainment and free food was unexpected and very welcomed, especially given the trend of charging for more and more features."

Cons: "*Again, my first choice of main off the menu, in Delta One, had run out. *Not a fan of the Delta One seats."

Pros: "Availability of flight. Quick flight, on time. Signage at PDX is good. Easy to find where you need to be"
Cons: "Layover, confusing mob line at checkin."

Pros: "Getting to China, albeit two days late."
Cons: "The fact that the lack of knowledge regarding international travel visas by the counter staff and supervisor meant that two days of the vacation were lost. Upon arrival in China the 144 hour travel visa was granted with no problem within minutes, but the U.S. staff was completely befuddled by the possibility. The interrogation was completely stressful and resulted in a reschedule of the original flight and during the second attempt at flying even an email from the U.S. consulate with a link to the Shanghai/Chinese government immigration site was deemed "not official enough". i will be expecting proper compensation. I was once given an $850 travel voucher for voluntarily giving up my seat, and was flown first class to Hawaii, given 4 star accomodation and then flown first class on to China within 48 hours. This was an involuntary bump from our chosen flight time, all because of a lack of knowledge about current visa regulations and international law on the part of the check in staff. We have been loyal Delta users for over 15 years, and this was the biggest blunder ever. Also humiliating and extremely frustrating, stressful and a big problem with fulfilling our travel plans between son and father."

Pros: "Clean & modern aircraft Comfortable seat Proactive customer service"
Cons: "Delayed departure (due to Air Traffic Control) Finding my bag damaged on arrival More refreshments would have been nice"

Pros: "Very friendly and helpful staff."

Pros: "Fast boarding, everyone nice."
Cons: "Wifi was yo and down the whole flight, about 20 times, so kids were not entertained."

Pros: "This was a first! The flight attendant (sorry I didn't catch his name) was very attentive and assisted us in first class as needed. He actually addressed us by our name and that made me feel like I was not just a passenger!"

Pros: "Very attentative."

Cons: "Aircraft was smelling bad! Hygiene is the key"

Pros: "EZ play newer plane nice staff"
Cons: "Power plugs did not work in seating row and air vents did not work"

Pros: "Helpful staff. Never felt rushed if I had a question. The special meal (VLML) was excellent. Tasty, filling and nutritious Plenty of foot room in economy."

Pros: "Nothing. Delta sucks!"
Cons: "Poor management prior boarding"

Cons: "Enforce your baggage size and number limits. A significant number of passengers take bags onboard that are oversized."

Pros: "Nice food"

Cons: "Friendlier crews"

Pros: "Nothing"
Cons: "Transavia does not serve anything complementary, not even water. A flight between two countries that is five hours long must be better than this. I was not aware of Transavia doing that before I booked. I will never fly with them again"

Pros: "Great atmosphere, crew was excellent!"
Cons: "I’m 6’5”, so legroom can always be a complaint, but this wasn’t too bad. The plane appeared to be fairly old and didn’t have WiFi. Entertainment also was on an older screen which was navigated by using an old in-seat phone."

Pros: "Impressive service... amazing crew, very friendly and professional"

Pros: "15 years ago I told myself not to fly Delta anymore. But these 2 flights Detroit to Amsterdam and back changed my mind. I enjoyed the flight very much and I'm looking forward to the next one."

Cons: "Half the screens were not working - crew were made aware but nothing was done. Vegetarian choices were poor to non-existent ; I witnessed crew insist to a passenger that there were no vegetarian options! They finally cobbled something together for him but not a pleasant experience"

Cons: "Crew members in Amsterdam were very rude and disrespectful"

Cons: "I was seated next to the restroom, which is not a pleasant experience for an international flight."

Pros: "The crew was amazing, flight on schedule and good entertainment."
Cons: "Space is just reasonable on a long flight, even if there's seats more spacious that you could choose if you pay more."

Pros: "Crew was great and helpful despite oversight in my special meal."
Cons: "Special meal request was overlook. I did not mind so much as eating less does some good! It is human to err!"

Pros: "Crew helpful. Food good."
Cons: "Better range of movies please"

Cons: "Don’t be late"

Pros: "The crew is really welcoming"
Cons: "The seats are too narrow and a bit too hard"

Pros: "The space at my feet with the chair in front was a bit akward."
Cons: "Not being seated next to small kids. Perhaps they should have a separate section? ;-)"

Pros: "Like the overall KLM experience"
Cons: "Food could have had better quality and the stewardess served it all at once versus in the various courses."

Pros: "I love the food"

Pros: "Efficient boarding system, clearly signposted. Professional staff"

Cons: "Flight was delayed, landing at vce took an additional 10 minutes due to no one at the jet way. Luggage service was very slow"

Pros: "Crew was very friendly. Nice that wine was served without charge."
Cons: "Announcements from the cockpit were hard to hear. Food has been better in past."

Pros: "Very friendly onboard personnel - I really had kind of homy feeling."

Pros: "Great service"

Pros: "Crew was great, very nice"
Cons: "Not enough legroom"

Pros: "Good selection of movies."
Cons: "Very small seats with no leg room and very little room on either side. The food was bad - even when compared to other airplane food. Plane is kept too warm."

Pros: "Snooth and efficiënt with a KLM service"
Cons: "No entertainment"

Pros: "The flight to Gdansk took off and arrived on-time and the staff were professional."
Cons: "The flight to Amsterdam from Gdansk was late and I had to RUN to the connecting gate. 50 minutes is NOT ENOUGH time to go through passport control."

Cons: "Didn’t happen."

Cons: "Boarding was confusing and disorganized"

Pros: "She was cheerful and genuine. I have dietary restrictions but was unable to preorder a meal. She went out of her way to find an available meal for me. I also saw her bring other passengers extra snacks and drinks."
Cons: "Cramped seating."

Pros: "expedited check in with nice staff. Security staff were pleasant, and the entire check in process for everything was easy"
Cons: "there was no lounge close to our departure gate"

Pros: "Nice flight, nice crew, and a nice experience."

Pros: "Nothing really"
Cons: "Flew KLM 27 years ago and the airlines seem to be stuck in the same era. Food is poor quality... Have you recently checked the Gulf carriers."

Pros: "Food was good and crew members were very nice"
Cons: "My check in luggage was in very bad condition when I receive it. My clothes were all wet and they got bab by each other’s colour. Many clothes are not in a condition to wear now. Those were expensive and I had a big loss because of that."

Pros: "Good flights. Good prices."

Pros: "My bagage broke"
Cons: "I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it"

Pros: "In flight food was enjoyable"

Pros: "Staff both at the airport and in the plane were professional and welcoming. Depsite short distance sandwich and drink were offered."
Cons: "Nothing to be honest . All positive."

Pros: "Crew was courteous and polite! Entertainment system had some great movies at no additional cost."
Cons: "Poor communication between delta, KLM and Air France meant that I couldn’t check in online and get a digital boarding pass. Furthermore I couldn’t use the check-in kiosks because my name was listed as Reidmr instead of Reid, which meant that my boarding pass did not match my passport. Overall this caused unnecessary delays that were compounded by the fact that I couldn’t use my TSA precheck. My main problem on the plane was that I had to struggle to get water served to me. It’s always so dry on planes and I would have liked to be able to get more than one tiny glass of water at a time. Also, would have loved a window at my window seat. Plus no WIFI!?"

Pros: "Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam"

Pros: "staff was fine"
Cons: "old old plane, very uncomfortable. Tiny bad screen made movies pointless"

Cons: "Our flight was canceled from Amsterdam to Bordeaux and did not receive any direction and had to find alternate flights for ourselves with the personal expense of using our own cell phones. Then our luggage lost for 3 days. Not happy!"

Cons: "The bags where damaged from the staff"

Pros: "Professional, friendly service. Punctual, safe flight. Comfortable, spotless airplane."
Cons: "What is there not to like about KLM? I cannot find anything."

Pros: "Atmosphere, crew were very professional and friendly"
Cons: "Seats were a little too narrow, and quite uncomfortable when a broad shouldered person is sitting next to you"

Cons: "The crew on the Lagos Amsterdam route (in economy) are particularly unfriendly and brusque. This is my experience each time i fly this route in economy"

Pros: "Having exit aisle made a huge difference in comfort Crew were EXCELLENT"
Cons: "Food was not very good Tasteless and rubbery"

Pros: "KLM food and service are great"

Pros: "Overall, good flight"

Pros: "Excellent crew made this flight very enjoyable. A lot of information during the flight about the route, arrival times and clear explanation of the departure delay. Very friendly and attentive."
Cons: "Only 1 drinks round on a 3h flight."

Pros: "On time."
Cons: "Claiming that the plane was completely full (which it wasn't), They forced just about everyone to check there carry ons. When we got on board, there was plenty of overhead space. Supposedly, we should've have been allowed a carryon and a personal item."

Read more about Delta
COVID-19 information

Safety measures for airlines flying from Seattle to Wales

Airlines flying from Seattle to Wales have enacted additional safety measures and adjusted policies to better accommodate travellers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Seattle to Wales

Mandatory masks

Masks required on board, masks provided on flights from Seattle to Wales

Social distancing seating

Middle seats unavailable to book on flights from Seattle to Wales

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Seattle to Wales

Book cheap flights from Seattle to Wales

Cheapest flights to Wales from Seattle found in 2021 and 2022

Recent return flight deals

1/12
Wed
1 stop
KLM
19h 09m
SEA - CWL
14/12
Tue
1 stop
KLM
13h 06m
CWL - SEA
1/12
Wed
2 stops
Delta
17h 45m
SEA - CWL
14/12
Tue
1 stop
Delta
13h 06m
CWL - SEA
1/12
Wed
2 stops
Delta
17h 45m
SEA - CWL
14/12
Tue
2 stops
Delta
20h 31m
CWL - SEA
13/1
Thu
1 stop
Multiple Airlines
19h 09m
SEA - CWL
17/1
Mon
1 stop
Multiple Airlines
32h 51m
CWL - SEA
13/1
Thu
2 stops
Multiple Airlines
15h 52m
SEA - CWL
17/1
Mon
1 stop
Multiple Airlines
32h 51m
CWL - SEA
19/8
Thu
2 stops
Delta
27h 40m
SEA - CWL
17/11
Wed
1 stop
Delta
13h 06m
CWL - SEA
19/8
Thu
2 stops
Delta
27h 40m
SEA - CWL
17/11
Wed
2 stops
Delta
18h 41m
CWL - SEA
19/8
Thu
1 stop
KLM
19h 15m
SEA - CWL
17/11
Wed
1 stop
KLM
13h 06m
CWL - SEA
Show more results

Recent one-way flight deals

16/9
Thu
3 stops
Multiple Airlines
19h 04m
SEA - CWL
16/9
Thu
3 stops
Multiple Airlines
19h 04m
SEA - CWL

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