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Cheap flights from Colorado to Belfast from $989

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Belfast departing on 10/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Colorado to Belfast

Cheap round-trip flights

Logo
5:59 pm - 10:20 pmDEN-BFS
21h 21m2 stops
Logo
12:35 pm - 1:45 pmBFS-DEN
32h 10m2 stops
$989
Find Deal
Sat, Oct 11 - Sat, Oct 18
Logo
11:25 am - 4:15 pmDEN-BFS
21h 50m2 stops
Logo
6:00 am - 6:18 pmBFS-DEN
19h 18m3 stops
$1,041
Find Deal
Thu, Sep 18 - Thu, Sep 25
Logo
5:25 pm - 6:15 pmDEN-BFS
17h 50m1 stop
Logo
6:00 am - 6:05 pmBFS-DEN
19h 05m2 stops
$1,057
Find Deal
Sun, Dec 7 - Sun, Dec 14
Logo
6:35 pm - 11:05 pmDEN-BFS
21h 30m1 stop
Logo
7:35 pm - 1:12 amBFS-DEN
36h 37m2 stops
$1,060
Find Deal
Sat, Oct 11 - Sat, Oct 18
Logo
11:15 am - 6:25 pmDEN-BFS
24h 10m3 stops
Logo
8:55 pm - 6:05 pmBFS-DEN
28h 10m2 stops
$1,066
Find Deal
Sun, Dec 7 - Sun, Dec 14
Logo
7:55 pm - 11:10 pmDEN-BFS
20h 15m2 stops
Logo
7:20 am - 5:59 pmBFS-DEN
17h 39m2 stops
$1,094
Find Deal
Thu, Sep 18 - Thu, Sep 25
Logo
8:40 am - 10:30 pmDEN-BFS
30h 50m3 stops
Logo
9:30 pm - 6:55 pmBFS-DEN
28h 25m2 stops
$1,100
Find Deal
Sat, Oct 11 - Sat, Oct 18
Logo
3:40 pm - 6:25 pmDEN-BFS
19h 45m2 stops
Logo
8:55 pm - 6:05 pmBFS-DEN
28h 10m2 stops
$1,122
Find Deal
Sun, Dec 7 - Sun, Dec 14
Logo
6:35 pm - 7:10 pmDEN-BFS
17h 35m1 stop
Logo
6:00 am - 4:25 pmBFS-DEN
17h 25m1 stop
$1,132
Find Deal
Sat, Oct 11 - Sat, Oct 18
Logo
11:15 am - 9:55 pmDEN-BFS
27h 40m3 stops
Logo
10:45 pm - 6:05 pmBFS-DEN
26h 20m3 stops
$1,164
Find Deal
Sun, Dec 7 - Sun, Dec 14

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Belfast Intl Airport 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 August 6, 2025.
Use the filters below to find and compare flights from Colorado to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 10/11

5:59 pm-10:20 pm

2 stops21h 21m

Belfast Intl

Sat 10/18

12:35 pm-1:45 pm

2 stops32h 10m

$989

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 9/18

11:25 am-4:15 pm

2 stops21h 50m

Belfast Intl

Thu 9/25

6:00 am-6:18 pm

3 stops19h 18m

$1,041

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 12/7

5:25 pm-6:15 pm

1 stop17h 50m

Belfast Intl

Sun 12/14

6:00 am-6:05 pm

2 stops19h 05m

$1,057

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 10/11

6:35 pm-11:05 pm

1 stop21h 30m

Belfast Intl

Sat 10/18

7:35 pm-1:12 am

2 stops36h 37m

$1,060

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 12/7

11:15 am-6:25 pm

3 stops24h 10m

Belfast Intl

Sun 12/14

8:55 pm-6:05 pm

2 stops28h 10m

$1,066

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 9/18

7:55 pm-11:10 pm

2 stops20h 15m

Belfast Intl

Thu 9/25

7:20 am-5:59 pm

2 stops17h 39m

$1,094

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 10/11

8:40 am-10:30 pm

3 stops30h 50m

Belfast Intl

Sat 10/18

9:30 pm-6:55 pm

2 stops28h 25m

$1,100

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 12/7

3:40 pm-6:25 pm

2 stops19h 45m

Belfast Intl

Sun 12/14

8:55 pm-6:05 pm

2 stops28h 10m

$1,122

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 10/11

6:35 pm-7:10 pm

1 stop17h 35m

Belfast Intl

Sat 10/18

6:00 am-4:25 pm

1 stop17h 25m

$1,132

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 12/7

11:15 am-9:55 pm

3 stops27h 40m

Belfast Intl

Sun 12/14

10:45 pm-6:05 pm

3 stops26h 20m

$1,164

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Belfast from

How to get the cheapest flight ticket from Colorado to Belfast Intl Airport

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 day to depart on your flight to Belfast Intl Airport?

The cheapest day to depart on your flight to Belfast Intl Airport is on a Thursday when prices can be found for as low as $688. This is often the case because there is less demand to fly during this day of the week. 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 Intl Airport for around $1,000.

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

In the morning is the cheapest time of day to fly from Colorado to Belfast Intl Airport when you can find flight prices for as low as $675. Flying to Belfast Intl Airport in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Belfast Intl Airport is in the afternoon when prices are around $745.

Cheap Colorado to Belfast Intl Airport flight deals and tips

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

Best Price Found

$989

Fastest flight time

17h 35m

Direct flights

None
The best flight deal from Colorado to Belfast Intl Airport found on momondo in the last 72 hours is $989
The fastest flight from Colorado to Belfast Intl Airport takes 17h 35m
There are no direct flights from Colorado to Belfast Intl Airport. Popular non-direct route for this connection is Denver Intl Airport - Belfast Intl Airport.
Search flight deals

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

    Prices for flights from Colorado to Belfast Intl Airport are updated daily.

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

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

    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 Intl Airport.

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

    The necessary travel and health documents for your Belfast Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Belfast Intl Airport

Compare and see reviews for airlines that fly from Colorado to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $655Free CancellationRating
6.6
7,245 reviews
Search British Airways flights

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newry
Armagh
Cookstown
Dungannon

Why use momondo?

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

Finding the right flight to Belfast from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Belfast from Colorado which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Belfast from Colorado. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from Colorado and alert you when they change.

An easier way to manage your Belfast Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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