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Cheap flights from Colorado to Belfast from $336

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 8/25. 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
6:40 pm - 5:40 pm
DEN
-
BHD
16h 00m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$930British Airways
Sun, Aug 23 - Tue, Sep 1
British Airways Logo
6:40 pm - 2:35 pm
DEN
-
BHD
12h 55m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$931British Airways
Sun, Aug 23 - Tue, Sep 1
British Airways Logo
6:40 pm - 3:30 pm
DEN
-
BHD
13h 50m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$935British Airways
Mon, Aug 31 - Fri, Sep 11
British Airways Logo
6:40 pm - 3:30 pm
DEN
-
BHD
13h 50m
1 stop
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$936British Airways
Mon, Aug 31 - Fri, Sep 11
British Airways Logo
6:40 pm - 2:35 pm
DEN
-
BHD
12h 55m
1 stop
British Airways Logo
8:35 pm - 4:30 pm
BHD
-
DEN
26h 55m
1 stop
$951British Airways
Sun, Sep 6 - Thu, Sep 10
British Airways Logo
6:40 pm - 5:40 pm
DEN
-
BHD
16h 00m
1 stop
British Airways Logo
8:35 pm - 4:30 pm
BHD
-
DEN
26h 55m
1 stop
$952British Airways
Sun, Sep 6 - Thu, Sep 10
American Airlines Logo
5:45 pm - 6:45 pm
DEN
-
BHD
18h 00m
2 stops
American Airlines Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$954American Airlines
Sun, Aug 23 - Tue, Sep 1
British Airways Logo
2:23 pm - 3:20 pm
DEN
-
BHD
17h 57m
2 stops
British Airways Logo
6:30 am - 4:30 pm
BHD
-
DEN
17h 00m
1 stop
$956British Airways
Tue, Sep 1 - Tue, Sep 15
British Airways Logo
9:06 am - 10:30 am
DEN
-
BHD
18h 24m
2 stops
British Airways Logo
9:40 am - 4:30 pm
BHD
-
DEN
13h 50m
1 stop
$957British Airways
Sun, Aug 23 - Tue, Sep 1
Multiple Airlines Logo
4:40 pm - 11:00 pm
DEN
-
BFS
23h 20m
3 stops
Multiple Airlines Logo
6:10 am - 7:00 pm
BFS
-
DEN
19h 50m
2 stops
$1,180Multiple Airlines
Thu, Sep 17 - Thu, Sep 24

British Airways flights from Colorado to Belfast

Our best British Airways deals on Colorado to Belfast flight tickets
British Airways
Aug 23
DEN6:40 pmDenver Intl
16h 00m
1 stop
BHD5:40 pmBelfast City
Sep 1
BHD6:30 amBelfast City
17h 00m
1 stop
DEN4:30 pmDenver Intl
$930
British Airways
Aug 23
DEN6:40 pmDenver Intl
12h 55m
1 stop
BHD2:35 pmBelfast City
Sep 1
BHD6:30 amBelfast City
17h 00m
1 stop
DEN4:30 pmDenver Intl
$931
British Airways
Aug 31
DEN6:40 pmDenver Intl
13h 50m
1 stop
BHD3:30 pmBelfast City
Sep 11
BHD6:30 amBelfast City
17h 00m
1 stop
DEN4:30 pmDenver Intl
$935

American Airlines flights from Colorado to Belfast

Our best American Airlines deals on Colorado to Belfast flight tickets
American Airlines
Aug 23
DEN5:45 pmDenver Intl
18h 00m
2 stops
BHD6:45 pmBelfast City
Sep 1
BHD6:30 amBelfast City
17h 00m
1 stop
DEN4:30 pmDenver Intl
$954
American Airlines
Aug 23
DEN6:27 pmDenver Intl
17h 18m
2 stops
BHD6:45 pmBelfast City
Sep 1
BHD9:40 amBelfast City
19h 00m
2 stops
DEN9:40 pmDenver Intl
$964
American Airlines
Aug 31
DEN3:14 pmDenver Intl
17h 16m
2 stops
BHD3:30 pmBelfast City
Sep 11
BHD6:30 amBelfast City
18h 57m
2 stops
DEN6:27 pmDenver Intl
$969

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 May 10, 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

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 8/23

6:40 pm-5:40 pm

1 stop16h 00m

Belfast City

Tue 9/1

6:30 am-4:30 pm

1 stop17h 00m

$930
Quickest round-trip

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 8/23

6:40 pm-2:35 pm

1 stop12h 55m

Belfast City

Tue 9/1

6:30 am-4:30 pm

1 stop17h 00m

$931

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 8/31

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Fri 9/11

6:30 am-4:30 pm

1 stop17h 00m

$935

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Mon 8/31

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Fri 9/11

6:30 am-4:30 pm

1 stop17h 00m

$936

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 9/6

6:40 pm-2:35 pm

1 stop12h 55m

Belfast City

Thu 9/10

8:35 pm-4:30 pm

1 stop26h 55m

$951

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 9/6

6:40 pm-5:40 pm

1 stop16h 00m

Belfast City

Thu 9/10

8:35 pm-4:30 pm

1 stop26h 55m

$952

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 8/23

5:45 pm-6:45 pm

2 stops18h 00m

Belfast City

Tue 9/1

6:30 am-4:30 pm

1 stop17h 00m

$954

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Tue 9/1

2:23 pm-3:20 pm

2 stops17h 57m

Belfast City

Tue 9/15

6:30 am-4:30 pm

1 stop17h 00m

$956

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Sun 8/23

9:06 am-10:30 am

2 stops18h 24m

Belfast City

Tue 9/1

9:40 am-4:30 pm

1 stop13h 50m

$957

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 9/17

4:40 pm-11:00 pm

3 stops23h 20m

Belfast Intl

Thu 9/24

6:10 am-7:00 pm

2 stops19h 50m

$1,180

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Colorado to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Colorado to Belfast?

British Airways is the most popular carrier operating from Colorado to Belfast

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

12h 55m

Direct flights

None
The fastest flight from Colorado to Belfast takes 12h 55m
There are no direct flights from Colorado to Belfast. There are no popular flight routes from Colorado to Belfast.
Search flight deals

Frequently asked questions about flying from Colorado to Belfast

  • 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
7,964 reviews
Search British Airways flights

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