Find flights
When to book
FAQs

Cheap flights from Colorado to Belfast from £227

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BHD
28 Jul — 4 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Colorado to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Colorado to Belfast
Explore the most affordable flight options available from Colorado to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 June 2026.

Sat 22/820:10
DEN
-
BFS
2 stops17h 10m
Multiple Airlines
Mon 24/820:35
BFS
-
DEN
3 stops45h 45m
Multiple Airlines
Deal found 24/6£737
Tue 1/918:40
DEN
-
BHD
1 stop15h 55m
British Airways
Tue 15/906:30
BHD
-
DEN
1 stop17h 00m
British Airways
Deal found 26/6£743
Tue 1/918:40
DEN
-
BHD
1 stop15h 55m
British Airways
Fri 11/906:30
BHD
-
DEN
1 stop17h 00m
British Airways
Deal found 24/6£744
Mon 31/818:40
DEN
-
BHD
1 stop13h 50m
British Airways
Fri 11/906:30
BHD
-
DEN
1 stop17h 00m
British Airways
Deal found 28/6£747
Wed 11/1117:01
DEN
-
BHD
1 stop14h 34m
British Airways
Sat 14/1106:35
BHD
-
DEN
1 stop15h 35m
British Airways
Deal found 27/6£754
Tue 1/917:44
DEN
-
BHD
2 stops16h 51m
Multiple Airlines
Tue 15/906:30
BHD
-
DEN
1 stop17h 00m
Multiple Airlines
Deal found 25/6£765
Mon 31/817:44
DEN
-
BHD
2 stops14h 46m
Multiple Airlines
Fri 11/909:35
BHD
-
DEN
1 stop13h 55m
Multiple Airlines
Deal found 25/6£769
Tue 1/915:02
DEN
-
BHD
2 stops17h 18m
American Airlines
Fri 11/906:30
BHD
-
DEN
2 stops20h 08m
American Airlines
Deal found 25/6£771
Thu 23/716:40
DEN
-
BFS
2 stops19h 40m
Multiple Airlines
Thu 30/708:20
BFS
-
DEN
2 stops35h 20m
Multiple Airlines
Deal found 25/6£941

Find flight deals from Colorado to Belfast

Keep the following information in mind while searching for Colorado to Belfast flight deals. Data was last updated 28 June 2026.

Round-trip from

£737

One-way from

£227
22/8-24/8
  • 22/8-24/8
  • 5 total stops
  • 62h 55m total
  • Colorado to Belfast
Search Deals
16/11
  • 16/11
  • 2 total stops
  • 32h 35m total
  • Colorado to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Colorado to Belfast 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 28 June 2026.
Use the filters below to find and compare flights from Colorado to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 1/9

18:40-17:35

1 stop15h 55m

Belfast City

Tue 15/9

06:30-16:30

1 stop17h 00m

£744

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 1/9

18:40-17:35

1 stop15h 55m

Belfast City

Fri 11/9

06:30-16:30

1 stop17h 00m

£744

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 31/8

18:40-15:30

1 stop13h 50m

Belfast City

Fri 11/9

06:30-16:30

1 stop17h 00m

£747

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 4/12

17:01-14:15

1 stop14h 14m

Belfast City

Tue 8/12

11:25-15:10

1 stop34h 45m

£754

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 22/8

20:10-23:25

3 stops20h 15m

Belfast Intl

Mon 24/8

20:35-11:20

3 stops45h 45m

£760
Fastest return journey

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 31/8

17:44-15:30

2 stops14h 46m

Belfast City

Fri 11/9

09:35-16:30

1 stop13h 55m

£769

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 23/7

16:40-19:20

2 stops19h 40m

Belfast Intl

Thu 30/7

08:20-12:40

2 stops35h 20m

£941
Cheapest one-way

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 15/11

15:40-21:40

2 stops23h 00m

£229

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 18/11

15:40-19:45

2 stops21h 05m

£234

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 18/7

23:52-07:40

2 stops48h 48m

£262

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Colorado to Belfast

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

Related info for your journey

Find useful and relevant information for your journey from Colorado to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Colorado to Belfast?

    A quick flight from Colorado to Belfast can take about 15h 55m. British Airways provides one of the quickest options available for as low as £744. There are 4347 mi between Colorado and Belfast.

  • Can I find deals for flights from Colorado to Belfast that include hotel bookings?

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

  • How can I find direct flights from Colorado to Belfast?

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

  • Can I find deals for business class flights from Colorado to Belfast?

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Colorado to Belfast?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Colorado to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Colorado to Belfast?

Cheapflights helps you find that perfect flight to Belfast from Colorado by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Colorado to Belfast with no change fees?

Certainly. Search results for flights to Belfast from Colorado shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Colorado to Belfast become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast from Colorado today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.