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Cheap flights from Idaho to Cardiff from £724
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CWL
6 Aug — 13 Aug1
Return
1 adult
Economy
Find flight deals from Idaho to Cardiff
Cheapest flights from Idaho to CardiffExplore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.
Explore the most affordable flight options available from Idaho to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.
Mon 10/1110:38BOI - CWL
2 stops23h 17mKLM
Wed 19/1117:25CWL - BOI
2 stops36h 39mKLM
Deal found 31/7£724
Wed 3/1213:15BOI - CWL
2 stops37h 35mDelta
Sun 7/1210:20CWL - BOI
2 stops37h 09mDelta
Deal found 31/7£799
Wed 3/1213:43BOI - CWL
2 stops20h 12mVirgin Atlantic
Sun 7/1210:20CWL - BOI
2 stops43h 44mVirgin Atlantic
Deal found 30/7£800
Cheapflights Fare Finder
Customise your flight search to find flights from Idaho to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 August 2025.
Use the filters below to find and compare flights from Idaho to Cardiff that are best for you.
Fly from
Idaho
Fly to
Cardiff
Route
Depart
Return
Price
BoiseCardiff
BOI - CWL
BOICWL
Boise Air Term. Gowen Fld
Mon 10/11
10:38-16:55
2 stops23h 17m
Cardiff Wales
Wed 19/11
17:25-23:04
2 stops36h 39m
£724
BoiseCardiff
BOI - CWL
BOICWL
Boise Air Term. Gowen Fld
Wed 3/12
13:15-09:50
2 stops37h 35m
Cardiff Wales
Sun 7/12
10:20-16:29
2 stops37h 09m
£799
BoiseCardiff
BOI - CWL
BOICWL
Boise Air Term. Gowen Fld
Wed 3/12
13:43-16:55
2 stops20h 12m
Cardiff Wales
Sun 7/12
10:20-23:04
2 stops43h 44m
£800
Best time to book a flight from Idaho to Cardiff
Have a flexible travel schedule? Discover the best time to fly to Cardiff from Idaho with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Idaho to Cardiff
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Cardiff
Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated 1 August 2025.
Get a feel of what it's like to fly with Delta, KLM, andVirgin Atlantic from Idaho to Cardiff by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Entertainment
7.9
Boarding
8.2
Comfort
7.9
Food
7.3
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Idaho to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Cardiff?
Book flights to Cardiff if you plan to visit one of these locationsBarry
Bridgend
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Alternative routes for Idaho to Cardiff
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
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How does Cheapflights help users find flights from Idaho to Cardiff?
Deals for Idaho to Cardiff flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Idaho to Cardiff?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Idaho to Cardiff for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Idaho to Cardiff with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Idaho to Cardiff, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Idaho to Cardiff become cheaper?
Yes! Start tracking prices for Idaho to Cardiff flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.