Find flights
When to book
FAQs

Cheap flights from Colorado to Belfast from £506

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BHD
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Colorado to Belfast

Keep the following information in mind while searching for Colorado to Belfast flight deals. Data was last updated 13 November 2025.

Round-trip from

£506

Popular in

December

Cheapest in

February
British Airways
  • British Airways
  • 12/2-20/2
  • 2 total stops
  • 29h 20m total
  • Colorado to Belfast
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£133 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£40 potential savings vs. average return price).
Search Deals

Find 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 13 November 2025.

Tue 25/1110:13DEN - BHD
2 stops17h 17mAmerican Airlines
Wed 3/1211:25BHD - DEN
2 stops18h 40mAmerican Airlines
Deal found 11/11£513
Tue 25/1115:40DEN - BFS
2 stops17h 20mMultiple Airlines
Wed 3/1218:25BFS - DEN
3 stops30h 40mMultiple Airlines
Deal found 11/11£775
Mon 24/1100:17DEN - BHD
2 stops27h 13mMultiple Airlines
Wed 3/1206:35BHD - DEN
2 stops18h 11mMultiple Airlines
Deal found 11/11£810
Tue 25/1112:27DEN - BHD
2 stops16h 03mBritish Airways
Wed 3/1219:25BHD - DEN
1 stop27h 05mBritish Airways
Deal found 11/11£1,169
Sat 27/1216:20DEN - BFS
2 stops23h 00mMultiple Airlines
Sat 3/105:55BFS - DEN
2 stops17h 05mMultiple Airlines
Deal found 12/11£1,565
Fri 26/1213:25DEN - BFS
3 stops25h 35mMultiple Airlines
Fri 2/119:45BFS - DEN
2 stops28h 50mMultiple Airlines
Deal found 11/11£2,041

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 13 November 2025.
Use the filters below to find and compare flights from Colorado to Belfast that are best for you.

Fly from

Colorado

Fly to

Belfast

Route

Depart

Return

Price

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 12/2

17:25-14:00

1 stop13h 35m

Belfast City

Fri 20/2

06:45-15:30

1 stop15h 45m

£506

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 5/2

13:16-16:50

2 stops44h 34m

Belfast City

Tue 10/2

17:20-21:16

2 stops34h 56m

£513

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 25/11

10:13-10:30

2 stops17h 17m

Belfast City

Wed 3/12

11:25-23:05

2 stops18h 40m

£513

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 3/4

18:40-15:30

1 stop13h 50m

Belfast City

Tue 7/4

06:35-16:35

1 stop17h 00m

£522

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 16/4

18:40-15:30

1 stop13h 50m

Belfast City

Tue 21/4

20:20-16:35

1 stop27h 15m

£523

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 1/4

14:51-13:30

2 stops15h 39m

Belfast City

Tue 14/4

09:35-16:35

1 stop14h 00m

£526

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 1/4

14:27-13:30

2 stops16h 03m

Belfast City

Tue 14/4

09:35-22:19

2 stops19h 44m

£532

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 25/11

15:40-16:00

2 stops17h 20m

Belfast Intl

Wed 3/12

18:25-18:05

3 stops30h 40m

£775

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 5/2

11:15-13:40

2 stops19h 25m

Belfast Intl

Tue 10/2

20:55-14:35

2 stops24h 40m

£803

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 27/12

16:20-22:20

2 stops23h 00m

Belfast Intl

Sat 3/1

05:55-16:00

2 stops17h 05m

£1,565

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 11 results
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 13h 35m. British Airways provides one of the quickest options available for as low as £506. There are 4347 mi between Colorado and Belfast. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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.

Alternative routes for Colorado to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Belfast Intl flights
John F Kennedy Intl to Belfast Intl flights
John F Kennedy Intl to Belfast City flights
Los Angeles to Belfast Intl flights
Los Angeles to Belfast City flights
Boston to Belfast Intl flights
San Francisco to Belfast Intl flights
Boston to Belfast City flights
Seattle to Belfast City flights
Austin to Belfast Intl flights
Dallas/Fort Worth to Belfast Intl flights
O'Hare Intl to Belfast Intl flights
Miami to Belfast Intl flights
Hobby to Belfast City flights
LaGuardia to Belfast City flights
Miami to Belfast City flights
San Francisco to Belfast City flights
Atlanta to Belfast Intl flights
Denver to Belfast Intl flights
Fort Lauderdale to Belfast Intl flights
Orlando to Belfast Intl flights
Minneapolis to Belfast Intl flights
State College to Belfast City flights
Orlando to Belfast City flights
George Bush Intcntl to Belfast City flights
Portland to Belfast Intl flights
Nashville to Belfast City flights

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.