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Cheap flights from Colorado to Belfast from $346

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 7/18. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:40 pm - 11:25 pm
DEN
-
BFS
23h 45m
3 stops
Multiple Airlines Logo
9:50 pm - 11:20 am
BFS
-
DEN
44h 30m
3 stops
$906Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
4:40 pm - 9:30 pm
DEN
-
BFS
21h 50m
2 stops
Multiple Airlines Logo
9:50 pm - 11:20 am
BFS
-
DEN
44h 30m
3 stops
$917Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
4:40 pm - 8:20 pm
DEN
-
BFS
20h 40m
2 stops
Multiple Airlines Logo
9:50 pm - 11:20 am
BFS
-
DEN
44h 30m
3 stops
$933Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
4:40 pm - 11:25 pm
DEN
-
BFS
23h 45m
3 stops
Multiple Airlines Logo
9:50 pm - 11:20 am
BFS
-
DEN
44h 30m
3 stops
$938Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
8:10 pm - 8:20 pm
DEN
-
BFS
17h 10m
2 stops
Multiple Airlines Logo
8:35 pm - 11:20 am
BFS
-
DEN
45h 45m
3 stops
$973Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
8:10 pm - 11:25 pm
DEN
-
BFS
20h 15m
3 stops
Multiple Airlines Logo
8:35 pm - 11:20 am
BFS
-
DEN
45h 45m
3 stops
$1,004Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
8:10 pm - 6:55 pm
DEN
-
BFS
15h 45m
2 stops
Multiple Airlines Logo
6:30 am - 8:22 pm
BFS
-
DEN
20h 52m
2 stops
$1,012Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
8:10 pm - 6:55 pm
DEN
-
BFS
15h 45m
2 stops
Multiple Airlines Logo
6:30 am - 8:22 pm
BFS
-
DEN
20h 52m
2 stops
$1,046Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
4:40 pm - 8:20 pm
DEN
-
BFS
20h 40m
2 stops
Multiple Airlines Logo
6:30 am - 7:00 pm
BFS
-
DEN
19h 30m
2 stops
$1,118Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
4:40 pm - 8:10 pm
DEN
-
BFS
21h 30m
2 stops
Multiple Airlines Logo
8:40 pm - 6:05 pm
BFS
-
DEN
28h 25m
3 stops
$1,132Multiple Airlines
Sun, Oct 25 - Sun, Nov 15

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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 June 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

Sat 8/22

4:40 pm-11:25 pm

3 stops23h 45m

Belfast Intl

Mon 8/24

9:50 pm-11:20 am

3 stops44h 30m

$906

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

4:40 pm-9:30 pm

2 stops21h 50m

Belfast Intl

Mon 8/24

9:50 pm-11:20 am

3 stops44h 30m

$917

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

4:40 pm-8:20 pm

2 stops20h 40m

Belfast Intl

Mon 8/24

9:50 pm-11:20 am

3 stops44h 30m

$933

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

4:40 pm-11:25 pm

3 stops23h 45m

Belfast Intl

Mon 8/24

9:50 pm-11:20 am

3 stops44h 30m

$938

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

8:10 pm-8:20 pm

2 stops17h 10m

Belfast Intl

Mon 8/24

8:35 pm-11:20 am

3 stops45h 45m

$973

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

8:10 pm-11:25 pm

3 stops20h 15m

Belfast Intl

Mon 8/24

8:35 pm-11:20 am

3 stops45h 45m

$1,004
Quickest round-trip

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

8:10 pm-6:55 pm

2 stops15h 45m

Belfast Intl

Mon 8/24

6:30 am-8:22 pm

2 stops20h 52m

$1,012

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

8:10 pm-6:55 pm

2 stops15h 45m

Belfast Intl

Mon 8/24

6:30 am-8:22 pm

2 stops20h 52m

$1,046

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 8/22

4:40 pm-8:20 pm

2 stops20h 40m

Belfast Intl

Mon 8/24

6:30 am-7:00 pm

2 stops19h 30m

$1,118

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 10/25

4:40 pm-8:10 pm

2 stops21h 30m

Belfast Intl

Sun 11/15

8:40 pm-6:05 pm

3 stops28h 25m

$1,132

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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

14h 14m

Direct flights

None
The fastest flight from Colorado to Belfast Intl Airport takes 14h 14m
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

Frequently asked questions about flying from Colorado to Belfast Intl Airport

  • 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 $645Free CancellationRating
6.7
8,072 reviews
Search British Airways flights

Frequently asked questions about flying from Colorado to Belfast Intl Airport

  • 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
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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