Latest deals
FAQs
Price Alerts

Cheap flights from Colorado to Donegal from €898

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Donegal departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Colorado to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
14:09 - 20:00DEN  Denver Intl-CFN Donegal
22h 51m2 stops Chicago O'Hare Intl Dublin
Aer Lingus Logo
07:55 - 18:15CFN  Donegal-DEN Denver Intl
17h 20m1 stop Dublin
€898Aer Lingus
Sat, 5 Sep - Wed, 16 Sep
Multiple Airlines Logo
20:00 - 20:00DEN  Denver Intl-CFN Donegal
17h 00m1 stop Dublin
Multiple Airlines Logo
07:55 - 18:15CFN  Donegal-DEN Denver Intl
17h 20m1 stop Dublin
€910Multiple Airlines
Sat, 5 Sep - Wed, 16 Sep
Aer Lingus Logo
14:09 - 14:00DEN  Denver Intl-CFN Donegal
40h 51m2 stops Chicago O'Hare Intl Dublin
Aer Lingus Logo
14:30 - 00:17CFN  Donegal-DEN Denver Intl
16h 47m2 stops Dublin Chicago O'Hare Intl
€917Aer Lingus
Sat, 5 Sep - Wed, 16 Sep
British Airways Logo
17:05 - 20:00DEN  Denver Intl-CFN Donegal
19h 55m2 stops London Heathrow Dublin
British Airways Logo
14:30 - 15:10CFN  Donegal-DEN Denver Intl
31h 40m2 stops Dublin London Heathrow
€933British Airways
Thu, 12 Nov - Mon, 16 Nov
British Airways Logo
17:01 - 20:00DEN  Denver Intl-CFN Donegal
19h 59m2 stops London Heathrow Dublin
British Airways Logo
14:30 - 15:10CFN  Donegal-DEN Denver Intl
55h 40m2 stops Dublin London Heathrow
€1,027British Airways
Wed, 2 Dec - Sun, 6 Dec
Multiple Airlines Logo
23:50 - 14:00DEN  Denver Intl-CFN Donegal
31h 10m2 stops New York John F Kennedy Intl Dublin
Multiple Airlines Logo
14:30 - 18:15CFN  Donegal-DEN Denver Intl
34h 45m1 stop Dublin
€1,117Multiple Airlines
Fri, 4 Sep - Tue, 15 Sep
Multiple Airlines Logo
23:50 - 14:00DEN  Denver Intl-CFN Donegal
31h 10m2 stops New York John F Kennedy Intl Dublin
Multiple Airlines Logo
14:30 - 14:17CFN  Donegal-DEN Denver Intl
30h 47m2 stops Dublin New York John F Kennedy Intl
€1,125Multiple Airlines
Fri, 4 Sep - Tue, 15 Sep
Multiple Airlines Logo
20:00 - 14:00DEN  Denver Intl-CFN Donegal
11h 00m1 stop Dublin
Multiple Airlines Logo
14:30 - 18:15CFN  Donegal-DEN Denver Intl
34h 45m1 stop Dublin
€1,215Multiple Airlines
Fri, 4 Sep - Tue, 15 Sep
Multiple Airlines Logo
20:10 - 18:45DEN  Denver Intl-CFN Donegal
15h 35m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
07:55 - 23:08CFN  Donegal-DEN Denver Intl
22h 13m3 stops Dublin London Heathrow Vancouver Intl
€1,342Multiple Airlines
Sat, 5 Sep - Wed, 16 Sep
Multiple Airlines Logo
16:40 - 20:00DEN  Denver Intl-CFN Donegal
20h 20m3 stops Reykjavik Keflavik Intl Manchester Dublin
Multiple Airlines Logo
07:55 - 23:08CFN  Donegal-DEN Denver Intl
22h 13m3 stops Dublin London Heathrow Vancouver Intl
€1,503Multiple Airlines
Sat, 5 Sep - Wed, 16 Sep

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Aer Lingus flights from Colorado to Donegal

Our best Aer Lingus deals on Colorado to Donegal flight tickets
Aer Lingus
5 Sept
DEN14:09Denver Intl
22h 51m
2 stops
CFN20:00Donegal
16 Sept
CFN07:55Donegal
17h 20m
1 stop
DEN18:15Denver Intl
€898
Aer Lingus
5 Sept
DEN14:09Denver Intl
40h 51m
2 stops
CFN14:00Donegal
16 Sept
CFN14:30Donegal
16h 47m
2 stops
DEN00:17Denver Intl
€917

British Airways flights from Colorado to Donegal

Our best British Airways deals on Colorado to Donegal flight tickets
British Airways
12 Nov
DEN17:05Denver Intl
19h 55m
2 stops
CFN20:00Donegal
16 Nov
CFN14:30Donegal
31h 40m
2 stops
DEN15:10Denver Intl
€933
British Airways
2 Dec
DEN17:01Denver Intl
19h 59m
2 stops
CFN20:00Donegal
6 Dec
CFN14:30Donegal
55h 40m
2 stops
DEN15:10Denver Intl
€1,027

momondo Fare Finder

 
Customise your flight search to find flights from Colorado to Donegal 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 13,528 searches. Data last updated 10 August 2026.
Use the filters below to find and compare flights from Colorado to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Sat 5/9

14:09-20:00

2 stops22h 51m

Donegal

Wed 16/9

07:55-18:15

1 stop17h 20m

€898
Fastest return journey

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Sat 5/9

20:00-20:00

1 stop17h 00m

Donegal

Wed 16/9

07:55-18:15

1 stop17h 20m

€910

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Sat 5/9

14:09-14:00

2 stops40h 51m

Donegal

Wed 16/9

14:30-00:17

2 stops16h 47m

€917

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Thu 12/11

17:05-20:00

2 stops19h 55m

Donegal

Mon 16/11

14:30-15:10

2 stops31h 40m

€933

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Wed 2/12

17:01-20:00

2 stops19h 59m

Donegal

Sun 6/12

14:30-15:10

2 stops55h 40m

€1,027

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Fri 4/9

23:50-14:00

2 stops31h 10m

Donegal

Tue 15/9

14:30-18:15

1 stop34h 45m

€1,117

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Fri 4/9

23:50-14:00

2 stops31h 10m

Donegal

Tue 15/9

14:30-14:17

2 stops30h 47m

€1,125

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Fri 4/9

20:00-14:00

1 stop11h 00m

Donegal

Tue 15/9

14:30-18:15

1 stop34h 45m

€1,215

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Sat 5/9

20:10-18:45

2 stops15h 35m

Donegal

Wed 16/9

07:55-23:08

3 stops22h 13m

€1,342

DenverDonegal

DEN Denver Intl - CFN Donegal

DENCFN

Denver Intl

Sat 5/9

16:40-20:00

3 stops20h 20m

Donegal

Wed 16/9

07:55-23:08

3 stops22h 13m

€1,503

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Colorado to Donegal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Donegal

Fastest flight time

19h 59m

Direct flights

None
The fastest flight from Colorado to Donegal takes 19h 59m
There are no direct flights from Colorado to Donegal. There are no popular flight routes from Colorado to Donegal.
Search flight deals

Frequently asked questions about flying from Colorado to Donegal

  • When did momondo last update prices for flights from Colorado to Donegal Airport?

    Prices for flights from Colorado to Donegal Airport were last updated today.

  • How old do you have to be to fly from Colorado to Donegal 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Donegal Airport.

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

    The travel and health documents you'll need for your trip to Donegal 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 licence and a passport that is valid for six months after your intended arrival at Donegal Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Colorado to Donegal

  • How do I get Price Alerts for flights from Colorado to Donegal?

    Search flight deals from Colorado to Donegal. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Colorado to Donegal with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near Donegal?

Book flights to Donegal if you plan to visit one of these locations
Letterkenny
Bundoran
Killybegs

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Donegal?

Finding the right flight to Donegal from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Donegal quick and easy, saving you time and money.

Can I find flights from Colorado to Donegal with flexible booking policies on momondo?

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

How can momondo help me find flights from Colorado to Donegal?

Once all potential Colorado to Donegal 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 Colorado to Donegal right now. Can momondo alert me if prices change?

Price alerts on flights to Donegal from Colorado are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Donegal trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 9/9
Wed 16/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland