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

British Airways is the most popular carrier operating 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?

There is 1 operator available for flights from Colorado to Belfast as of November 2025.

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.

$398 Cheap Flights from Colorado to Belfast in 2025/26

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Find the cheapest flights from Colorado to Belfast

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 pm - 3:35 pmDEN-BHD

13h 55m1 stop

9:35 am - 4:35 pmBHD-DEN

14h 00m1 stop

$678British Airways

Find Deal

Wed, Apr 1 - Tue, Apr 14

6:40 pm - 3:30 pmDEN-BHD

13h 50m1 stop

8:20 pm - 4:35 pmBHD-DEN

27h 15m1 stop

$685British Airways

Find Deal

Thu, Apr 16 - Tue, Apr 21

6:40 pm - 3:35 pmDEN-BHD

13h 55m1 stop

3:50 pm - 4:35 pmBHD-DEN

31h 45m1 stop

$686British Airways

Find Deal

Wed, Apr 1 - Sun, Apr 5

5:51 pm - 7:20 pmDEN-BHD

18h 29m2 stops

9:35 am - 9:50 pmBHD-DEN

19h 15m2 stops

$699American Airlines

Find Deal

Thu, Apr 16 - Tue, Apr 21

4:00 pm - 9:20 pmDEN-BHD

22h 20m2 stops

6:30 am - 11:54 pmBHD-DEN

24h 24m2 stops

$719Virgin Atlantic

Find Deal

Fri, Apr 3 - Tue, Apr 7

4:00 pm - 4:55 pmDEN-BHD

17h 55m2 stops

6:30 am - 10:49 pmBHD-DEN

23h 19m2 stops

$720Delta

Find Deal

Wed, Apr 1 - Sun, Apr 5

4:00 pm - 9:20 pmDEN-BHD

22h 20m2 stops

6:30 am - 6:31 pmBHD-DEN

19h 01m2 stops

$722Virgin Atlantic

Find Deal

Wed, Apr 1 - Sun, Apr 5

3:40 pm - 7:00 pmDEN-BHD

20h 20m2 stops

7:25 am - 6:05 pmBHD-DEN

17h 40m2 stops

$725Multiple Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

5:01 pm - 6:15 pmDEN-BHD

18h 14m2 stops

9:35 am - 4:35 pmBHD-DEN

14h 00m1 stop

$889American Airlines

Find Deal

Fri, Apr 3 - Tue, Apr 7

11:15 am - 1:50 pmDEN-BHD

19h 35m3 stops

7:25 am - 6:05 pmBHD-DEN

17h 40m2 stops

$1,246Multiple Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

American Airlines flights from Colorado to Belfast

Our best American Airlines deals on Colorado to Belfast flight tickets

American Airlines

Apr 16

DEN5:51 pmDenver Intl

18h 29m

2 stops

BHD7:20 pmBelfast City

Apr 21

BHD9:35 amBelfast City

19h 15m

2 stops

DEN9:50 pmDenver Intl

$699

Find similar

American Airlines

Apr 3

DEN5:01 pmDenver Intl

18h 14m

2 stops

BHD6:15 pmBelfast City

Apr 7

BHD9:35 amBelfast City

14h 00m

1 stop

DEN4:35 pmDenver Intl

$889

Find similar

Virgin Atlantic flights from Colorado to Belfast

Our best Virgin Atlantic deals on Colorado to Belfast flight tickets

Virgin Atlantic

Apr 3

DEN4:00 pmDenver Intl

22h 20m

2 stops

BHD9:20 pmBelfast City

Apr 7

BHD6:30 amBelfast City

24h 24m

2 stops

DEN11:54 pmDenver Intl

$719

Find similar

Virgin Atlantic

Apr 1

DEN4:00 pmDenver Intl

22h 20m

2 stops

BHD9:20 pmBelfast City

Apr 5

BHD6:30 amBelfast City

19h 01m

2 stops

DEN6:31 pmDenver Intl

$722

Find similar

Virgin Atlantic

Apr 3

DEN12:45 pmDenver Intl

25h 35m

2 stops

BHD9:20 pmBelfast City

Apr 7

BHD6:30 amBelfast City

19h 01m

2 stops

DEN6:31 pmDenver Intl

$796

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 4/1

6:40 pm-3:35 pm

1 stop13h 55m

Belfast City

Tue 4/14

9:35 am-4:35 pm

1 stop14h 00m

$678

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 4/16

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Tue 4/21

8:20 pm-4:35 pm

1 stop27h 15m

$685

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 4/1

6:40 pm-3:35 pm

1 stop13h 55m

Belfast City

Sun 4/5

3:50 pm-4:35 pm

1 stop31h 45m

$686

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Thu 4/16

5:51 pm-7:20 pm

2 stops18h 29m

Belfast City

Tue 4/21

9:35 am-9:50 pm

2 stops19h 15m

$699

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 4/3

4:00 pm-9:20 pm

2 stops22h 20m

Belfast City

Tue 4/7

6:30 am-11:54 pm

2 stops24h 24m

$719

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 4/1

4:00 pm-4:55 pm

2 stops17h 55m

Belfast City

Sun 4/5

6:30 am-10:49 pm

2 stops23h 19m

$720

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 4/1

4:00 pm-9:20 pm

2 stops22h 20m

Belfast City

Sun 4/5

6:30 am-6:31 pm

2 stops19h 01m

$722

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 12/3

3:40 pm-7:00 pm

2 stops20h 20m

Belfast City

Wed 12/10

7:25 am-6:05 pm

2 stops17h 40m

$725

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Fri 4/3

5:01 pm-6:15 pm

2 stops18h 14m

Belfast City

Tue 4/7

9:35 am-4:35 pm

1 stop14h 00m

$889

DenverBelfast

DEN - BHD

DENBHD

Denver Intl

Wed 12/3

11:15 am-1:50 pm

3 stops19h 35m

Belfast City

Wed 12/10

7:25 am-6:05 pm

2 stops17h 40m

$1,246

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Belfast?

The cheapest day to depart from Colorado to Belfast is on a Thursday when prices can be found for as low as $688. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Colorado to Belfast for around $1,000.

What is the cheapest time of day to depart on your flight to Belfast?

Our data shows that the cheapest Colorado to Belfast flights are usually those with departure times in the morning. Our users have found flights to Belfast in the morning for as low as $675. Try not to purchase tickets in the afternoon because they tend to be around $745. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Colorado to Belfast flight deals and tips

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

Direct flights	None

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?
There is 1 operator available for flights from Colorado to Belfast as of November 2025.
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 Airways	PriceFrom $608	Free Cancellation	Rating 6.7 7,500 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.