Cheap Aer Lingus flights from Boston to Cardiff (BOS to CWL)
Find The Best Day To Fly from Boston to Cardiff
Discover our best Aer Lingus flight from Boston BOS to Cardiff CWL
To find the best deals on flights to Boston from Cardiff with Aer Lingus, just enter your travel dates, filter by Aer Lingus, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Boston BOS to Cardiff CWL with Aer Lingus
If you’re planning a round trip, booking return flights with Aer Lingus is usually the most cost-effective option. With airfares ranging from to , it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way Aer Lingus flights from Boston BOS to Cardiff CWL
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Aer Lingus flight from Boston to Cardiff costs from . Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Cardiff CWL from Boston BOS with Aer Lingus
To find a cheap Aer Lingus flight from Boston BOS to Cardiff CWL, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on Aer Lingus flights from Boston BOS to Cardiff CWL
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as , or if you book a flight with a stopover.
Find nonstop flights from Boston BOS to Cardiff CWL with Aer Lingus
If you’re keen to be on Cardiff soil fast, don’t waste time with a stopover—filter your search results to show direct Aer Lingus flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for Aer Lingus flights from Boston BOS to Cardiff CWL
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Cardiff CWL from Boston BOS with Aer Lingus on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 43 |
| DUB | IRL | Dublin | 16 |
| LHR | GBR | Heathrow | 7 |
| BOS | USA | Logan Intl. | 7 |
| JFK | USA | John F. Kennedy Intl. | 5 |
| IAH | USA | George Bush Intercontinental | 4 |
| MSN | USA | Dane County Regional | 4 |
| LAX | USA | Los Angeles Intl. | 3 |
| STL | USA | Lambert-St. Louis Intl. | 3 |
| BNA | USA | Nashville Intl. | 3 |
Travelers ❤️ these 🏨 after their flight to Cardiff
Celtic International Hotel Cardiff Airport
"I was on the bottom floor.tbe window was open.it was broken couldnt close it.Then a man kept walking back and 4 on his phone.apart from that it was nice"
Reviewed on Aug 12, 2026
The Old Barn
"Very enjoyable stay in The Old Barn. Kitchen was a bonus. Pub in village a huge plus point!"
Reviewed on Jun 2, 2026
Three Horseshoes
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