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Cheap flights from Cardiff to Idaho from £770

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BOI
8 Jul — 15 Jul1
1 adult

Cheap flight deals from Cardiff to Idaho

Keep the following information in mind while searching for Cardiff to Idaho flight deals. Data was last updated 3 July 2025.

Round-trip from

£770
Delta
  • Delta
  • 7/11-10/11
  • 4 total stops
  • 64h 08m total
  • Cardiff to Idaho

Find flight deals from Cardiff to Idaho

Cheapest flights from Cardiff to Idaho
Explore the most affordable flight options available from Cardiff to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.

Fri 7/1110:20CWL - BOI
2 stops37h 28mDelta
Mon 10/1107:15BOI - CWL
2 stops26h 40mDelta
Deal found 2/7£770

Cheapflights Fare Finder

Customise your flight search to find flights from Cardiff to Idaho 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 3 July 2025.
Use the filters below to find and compare flights from Cardiff to Idaho that are best for you.

Fly from

Cardiff

Fly to

Idaho

Route

Depart

Return

Price

CardiffBoise

CWL - BOI

CWLBOI

Cardiff Wales

Fri 7/11

10:20-16:48

2 stops37h 28m

Boise Air Term. Gowen Fld

Mon 10/11

07:15-16:55

2 stops26h 40m

£770

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Best time to book a flight from Cardiff to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Cardiff 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 Cardiff to Idaho
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated 3 July 2025.
Read through reviews of airlines operating flights from Cardiff to Idaho, such as Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Cardiff to Idaho?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly out of when you book flights from Cardiff to Idaho.

  • Can I find deals for flights from Cardiff to Idaho that include hotel bookings?

    Yes. In addition to deals on Cardiff to Idaho flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Idaho.

  • Can I find deals for business class flights from Cardiff to Idaho?

    Yes. Cheapflights offers flight deals from Cardiff to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cardiff to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Cardiff to Idaho (average of £754). Flying from Cardiff to Idaho in August is currently the most expensive (average of £1,152). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Cardiff to Idaho

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Why should you use Cheapflights to find cheap flight tickets from Cardiff to Idaho?

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Can Cheapflights find flights from Cardiff to Idaho with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Idaho flexibly with Cheapflights today.

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