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Cheap flights from Idaho to Cardiff from $765

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Cardiff departing on 12/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:30 am - 4:55 pmBOI-CWL
26h 25m2 stops
Delta Logo
10:20 am - 12:42 amCWL-BOI
45h 22m2 stops
$765Delta
Find Deal
mer., déc. 3 - dim., déc. 7
Delta Logo
11:10 am - 4:55 pmBOI-CWL
22h 45m2 stops
Delta Logo
10:20 am - 10:16 pmCWL-BOI
42h 56m2 stops
$766Delta
Find Deal
mer., déc. 3 - dim., déc. 7

Delta flights from Idaho to Cardiff

Our best Delta deals on Idaho to Cardiff flight tickets
Delta
Dec 3
BOI7:30 amBoise Air Term. Gowen Fld
26h 25m
2 stops
CWL4:55 pmCardiff Wales
Dec 7
CWL10:20 amCardiff Wales
45h 22m
2 stops
BOI12:42 amBoise Air Term. Gowen Fld
$765
Find similar
Delta
Dec 3
BOI11:10 amBoise Air Term. Gowen Fld
22h 45m
2 stops
CWL4:55 pmCardiff Wales
Dec 7
CWL10:20 amCardiff Wales
42h 56m
2 stops
BOI10:16 pmBoise Air Term. Gowen Fld
$766
Find similar

KLM flights from Idaho to Cardiff

Our best KLM deals on Idaho to Cardiff flight tickets
KLM
Nov 10
BOI1:49 pmBoise Air Term. Gowen Fld
37h 01m
2 stops
CWL9:50 amCardiff Wales
Nov 19
CWL5:25 pmCardiff Wales
36h 00m
2 stops
BOI10:25 pmBoise Air Term. Gowen Fld
$1,803
Find similar
KLM
Nov 10
BOI11:10 amBoise Air Term. Gowen Fld
22h 45m
2 stops
CWL4:55 pmCardiff Wales
Nov 19
CWL5:25 pmCardiff Wales
30h 50m
2 stops
BOI5:15 pmBoise Air Term. Gowen Fld
$1,804
Find similar

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated novembre 6, 2025.
Use the filters below to find and compare flights from Idaho to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

mer. 12/3

7:30 am-4:55 pm

2 stops26h 25m

Cardiff Wales

dim. 12/7

10:20 am-12:42 am

2 stops45h 22m

$765

BoiseCardiff

BOI - CWL

BOICWL

Boise Air Term. Gowen Fld

mer. 12/3

11:10 am-4:55 pm

2 stops22h 45m

Cardiff Wales

dim. 12/7

10:20 am-10:16 pm

2 stops42h 56m

$766

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Idaho to Cardiff flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Cardiff

Direct flights

None
There are no direct flights from Idaho to Cardiff. There are no popular flight routes from Idaho to Cardiff.
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  • When did momondo last update prices for flights from Idaho to Cardiff Wales Airport?

    Prices for flights from Idaho to Cardiff Wales Airport are updated daily.

  • How old do you have to be to fly from Idaho to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The travel and health documents you'll need for your trip to Cardiff Wales Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cardiff Wales Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Idaho to Cardiff?

    Confirm your travel details to search for the latest offers for flights from Idaho to Cardiff. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Idaho to Cardiff with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Cardiff?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to Cardiff. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Idaho to Cardiff with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Idaho to Cardiff flights to just show those with flexible booking policies.

How can momondo help me find flights from Idaho to Cardiff?

Once all potential Idaho to Cardiff flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Idaho to Cardiff right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Idaho to Cardiff flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
sam. 12/6
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