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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.
Multiple Airlines Logo
9:40 am - 6:25 pm
DEN
-
BFS
25h 45m
2 stops
Multiple Airlines Logo
9:40 pm - 7:00 pm
BFS
-
DEN
28h 20m
2 stops
$1,063Multiple Airlines
Sun, Aug 16 - Sat, Aug 29
Multiple Airlines Logo
9:40 am - 6:25 pm
DEN
-
BFS
25h 45m
2 stops
Multiple Airlines Logo
9:15 pm - 11:20 am
BFS
-
DEN
45h 05m
3 stops
$1,112Multiple Airlines
Sun, Aug 16 - Sat, Aug 29
Multiple Airlines Logo
5:40 pm - 6:50 pm
DEN
-
BFS
18h 10m
2 stops
Multiple Airlines Logo
8:15 pm - 3:40 pm
BFS
-
DEN
26h 25m
2 stops
$1,218Multiple Airlines
Sun, Apr 19 - Tue, Apr 28
Multiple Airlines Logo
4:15 pm - 9:30 pm
DEN
-
BFS
22h 15m
3 stops
Multiple Airlines Logo
9:15 pm - 11:20 am
BFS
-
DEN
45h 05m
3 stops
$1,224Multiple Airlines
Sun, Aug 16 - Sat, Aug 29
Multiple Airlines Logo
4:05 pm - 10:20 pm
DEN
-
BFS
23h 15m
2 stops
Multiple Airlines Logo
10:00 pm - 2:20 pm
BFS
-
DEN
23h 20m
2 stops
$1,304Multiple Airlines
Wed, May 13 - Sun, May 24
Multiple Airlines Logo
11:25 am - 3:15 pm
DEN
-
BFS
20h 50m
3 stops
Multiple Airlines Logo
10:00 pm - 2:20 pm
BFS
-
DEN
23h 20m
2 stops
$1,321Multiple Airlines
Wed, May 13 - Sun, May 24
Multiple Airlines Logo
11:25 am - 10:20 pm
DEN
-
BFS
27h 55m
3 stops
Multiple Airlines Logo
8:25 am - 7:00 pm
BFS
-
DEN
41h 35m
3 stops
$1,559Multiple Airlines
Wed, May 13 - Sun, May 24

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 March 26, 2026.
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

Cheapest round-trip

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 8/16

9:40 am-6:25 pm

2 stops25h 45m

Belfast Intl

Sat 8/29

9:40 pm-7:00 pm

2 stops28h 20m

$1,063

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 8/16

9:40 am-6:25 pm

2 stops25h 45m

Belfast Intl

Sat 8/29

9:15 pm-11:20 am

3 stops45h 05m

$1,112

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 4/19

5:40 pm-6:50 pm

2 stops18h 10m

Belfast Intl

Tue 4/28

8:15 pm-3:40 pm

2 stops26h 25m

$1,218

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 8/16

4:15 pm-9:30 pm

3 stops22h 15m

Belfast Intl

Sat 8/29

9:15 pm-11:20 am

3 stops45h 05m

$1,224

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 5/13

4:05 pm-10:20 pm

2 stops23h 15m

Belfast Intl

Sun 5/24

10:00 pm-2:20 pm

2 stops23h 20m

$1,304
Quickest round-trip

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 5/13

11:25 am-3:15 pm

3 stops20h 50m

Belfast Intl

Sun 5/24

10:00 pm-2:20 pm

2 stops23h 20m

$1,321

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 5/13

11:25 am-10:20 pm

3 stops27h 55m

Belfast Intl

Sun 5/24

8:25 am-7:00 pm

3 stops41h 35m

$1,559
Cheapest one-way
Quickest one-way

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 9/1

8:10 pm-7:50 pm

2 stops16h 40m

$369

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 9/1

8:10 pm-7:50 pm

2 stops16h 40m

$370

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 7/26

6:10 am-7:40 am

3 stops42h 30m

$407

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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

Fastest flight time

13h 50m

Direct flights

None
The fastest flight from Colorado to Belfast Intl Airport takes 13h 50m
There are no direct flights from Colorado to Belfast Intl Airport. There are no popular flight routes from Colorado to 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 $679Free CancellationRating
6.7
7,821 reviews
Search British Airways flights

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Colorado from Belfast Intl Airport. 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 Intl Airport 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.

Traveling to a place near Belfast?

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