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Cheap flights from Colorado to Belfast from $369

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Belfast departing on 9/1. 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
0 bags

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Find the cheapest flights from Colorado to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:30 pm - 2:35 pm
DEN
-
BHD
13h 05m
1 stop
British Airways Logo
9:40 am - 4:20 pm
BHD
-
DEN
13h 40m
1 stop
$928British Airways
Sun, Apr 19 - Tue, Apr 28
American Airlines Logo
12:24 pm - 10:30 am
DEN
-
BHD
15h 06m
2 stops
American Airlines Logo
1:45 pm - 4:20 pm
BHD
-
DEN
33h 35m
1 stop
$962American Airlines
Sun, Apr 19 - Tue, Apr 28
American Airlines Logo
11:46 am - 10:30 am
DEN
-
BHD
15h 44m
2 stops
American Airlines Logo
6:30 am - 5:02 pm
BHD
-
DEN
17h 32m
2 stops
$967American Airlines
Sun, Apr 19 - Tue, Apr 28
British Airways Logo
6:30 pm - 5:30 pm
DEN
-
BHD
16h 00m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$994British Airways
Mon, Apr 6 - Fri, Oct 2
British Airways Logo
6:30 pm - 6:45 pm
DEN
-
BHD
17h 15m
1 stop
British Airways Logo
9:35 am - 4:30 pm
BHD
-
DEN
13h 55m
1 stop
$1,004British Airways
Mon, Apr 6 - Fri, Oct 2
British Airways Logo
6:30 pm - 5:40 pm
DEN
-
BHD
16h 10m
1 stop
British Airways Logo
7:35 pm - 4:20 pm
BHD
-
DEN
27h 45m
1 stop
$1,013British Airways
Sun, Apr 12 - Mon, Apr 27
British Airways Logo
6:30 pm - 3:30 pm
DEN
-
BHD
14h 00m
1 stop
British Airways Logo
6:30 am - 8:23 pm
BHD
-
DEN
20h 53m
2 stops
$1,021British Airways
Mon, Apr 6 - Fri, Oct 2
Multiple Airlines Logo
4:43 pm - 3:30 pm
DEN
-
BHD
15h 47m
2 stops
Multiple Airlines Logo
9:35 am - 4:30 pm
BHD
-
DEN
13h 55m
1 stop
$1,022Multiple Airlines
Mon, Apr 6 - Fri, Oct 2
Multiple Airlines Logo
5:58 pm - 5:30 pm
DEN
-
BHD
16h 32m
2 stops
Multiple Airlines Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$1,023Multiple Airlines
Mon, Apr 6 - Fri, Oct 2
British Airways Logo
6:30 pm - 6:45 pm
DEN
-
BHD
17h 15m
1 stop
British Airways Logo
6:30 pm - 4:20 pm
BHD
-
DEN
28h 50m
1 stop
$1,029British Airways
Mon, Apr 6 - Mon, Apr 13

British Airways flights from Colorado to Belfast

Our best British Airways deals on Colorado to Belfast flight tickets
British Airways
Apr 19
DEN6:30 pmDenver Intl
13h 05m
1 stop
BHD2:35 pmBelfast City
Apr 28
BHD9:40 amBelfast City
13h 40m
1 stop
DEN4:20 pmDenver Intl
$928
British Airways
Apr 6
DEN6:30 pmDenver Intl
16h 00m
1 stop
BHD5:30 pmBelfast City
Oct 2
BHD6:30 amBelfast City
17h 00m
1 stop
DEN4:30 pmDenver Intl
$994
British Airways
Apr 6
DEN6:30 pmDenver Intl
17h 15m
1 stop
BHD6:45 pmBelfast City
Oct 2
BHD9:35 amBelfast City
13h 55m
1 stop
DEN4:30 pmDenver Intl
$1,004

American Airlines flights from Colorado to Belfast

Our best American Airlines deals on Colorado to Belfast flight tickets
American Airlines
Apr 19
DEN12:24 pmDenver Intl
15h 06m
2 stops
BHD10:30 amBelfast City
Apr 28
BHD1:45 pmBelfast City
33h 35m
1 stop
DEN4:20 pmDenver Intl
$962
American Airlines
Apr 19
DEN11:46 amDenver Intl
15h 44m
2 stops
BHD10:30 amBelfast City
Apr 28
BHD6:30 amBelfast City
17h 32m
2 stops
DEN5:02 pmDenver Intl
$967
American Airlines
Apr 6
DEN2:48 pmDenver Intl
17h 42m
2 stops
BHD3:30 pmBelfast City
Oct 2
BHD6:30 amBelfast City
17h 02m
2 stops
DEN4:32 pmDenver Intl
$1,030

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated March 25, 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 round-trip
Quickest round-trip

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 4/19

6:30 pm-2:35 pm

1 stop13h 05m

Belfast City

Tue 4/28

9:40 am-4:20 pm

1 stop13h 40m

$928

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 4/19

12:24 pm-10:30 am

2 stops15h 06m

Belfast City

Tue 4/28

1:45 pm-4:20 pm

1 stop33h 35m

$962

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 4/19

11:46 am-10:30 am

2 stops15h 44m

Belfast City

Tue 4/28

6:30 am-5:02 pm

2 stops17h 32m

$967

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 4/6

6:30 pm-5:30 pm

1 stop16h 00m

Belfast City

Fri 10/2

6:30 am-4:30 pm

1 stop17h 00m

$994

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 4/6

6:30 pm-6:45 pm

1 stop17h 15m

Belfast City

Fri 10/2

9:35 am-4:30 pm

1 stop13h 55m

$1,004

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 4/12

6:30 pm-5:40 pm

1 stop16h 10m

Belfast City

Mon 4/27

7:35 pm-4:20 pm

1 stop27h 45m

$1,013

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 4/6

6:30 pm-3:30 pm

1 stop14h 00m

Belfast City

Fri 10/2

6:30 am-8:23 pm

2 stops20h 53m

$1,021

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 4/6

4:43 pm-3:30 pm

2 stops15h 47m

Belfast City

Fri 10/2

9:35 am-4:30 pm

1 stop13h 55m

$1,022

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 4/6

5:58 pm-5:30 pm

2 stops16h 32m

Belfast City

Fri 10/2

6:30 am-4:30 pm

1 stop17h 00m

$1,023

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 4/6

6:30 pm-6:45 pm

1 stop17h 15m

Belfast City

Mon 4/13

6:30 pm-4:20 pm

1 stop28h 50m

$1,029

Flights are sorted by cheapest round-trip flights first.

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

Cheap Colorado to Belfast flight deals and tips

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

Fastest flight time

13h 50m

Direct flights

None
The fastest flight from Colorado to Belfast takes 13h 50m
There are no direct flights from Colorado to Belfast. There are no popular flight routes from Colorado to Belfast.
Search flight deals

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

    Prices for flights from Colorado to Belfast are updated daily.

  • How many operators does momondo search for flights from Colorado to Belfast?

  • How old do you have to be to fly from Colorado to Belfast?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The travel and health documents you'll need for your trip to Belfast 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 Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Belfast

Compare and see reviews for airlines that fly from Colorado to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $679Free CancellationRating
6.7
7,821 reviews
Search British Airways flights

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Colorado from Belfast. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Colorado to Belfast 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.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Colorado to Belfast for you.

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

Yes. momondo enables you to select and highlight flights to Belfast from Colorado with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Colorado.

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

Yes. momondo can track prices for Colorado to Belfast flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport