Latest deals
FAQs
Reviews
Price Alerts

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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 11:00 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
Multiple Airlines Logo
11:35 am - 7:30 pm
DEN
-
BFS
24h 55m
2 stops
Multiple Airlines Logo
6:10 am - 7:00 pm
BFS
-
DEN
19h 50m
2 stops
$1,187Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
4:40 pm - 11:00 pm
DEN
-
BFS
23h 20m
3 stops
Multiple Airlines Logo
6:40 am - 7:00 pm
BFS
-
DEN
19h 20m
3 stops
$1,210Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
4:15 pm - 7:15 pm
DEN
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
6:50 pm - 3:40 pm
BFS
-
DEN
27h 50m
2 stops
$1,279Multiple Airlines
Wed, Sep 16 - Mon, Oct 5
Multiple Airlines Logo
4:15 pm - 7:15 pm
DEN
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
10:20 pm - 6:46 pm
BFS
-
DEN
27h 26m
3 stops
$1,309Multiple Airlines
Wed, Sep 16 - Mon, Oct 5
Multiple Airlines Logo
4:15 pm - 11:10 pm
DEN
-
BFS
23h 55m
3 stops
Multiple Airlines Logo
10:20 pm - 6:46 pm
BFS
-
DEN
27h 26m
3 stops
$1,356Multiple Airlines
Wed, Sep 16 - Mon, Oct 5
Multiple Airlines Logo
9:10 am - 10:50 pm
DEN
-
BFS
30h 40m
3 stops
Multiple Airlines Logo
6:45 am - 10:35 am
BFS
-
DEN
34h 50m
3 stops
$1,376Multiple Airlines
Sun, Jun 21 - Sun, Jun 28
Multiple Airlines Logo
12:15 pm - 4:30 pm
DEN
-
BFS
21h 15m
2 stops
Multiple Airlines Logo
6:40 pm - 10:33 am
BFS
-
DEN
46h 53m
3 stops
$1,390Multiple Airlines
Fri, Jun 5 - Fri, Jun 12
Multiple Airlines Logo
12:15 pm - 1:05 pm
DEN
-
BFS
17h 50m
2 stops
Multiple Airlines Logo
8:30 am - 12:51 pm
BFS
-
DEN
35h 21m
3 stops
$1,459Multiple Airlines
Sun, May 24 - Sat, May 30
Multiple Airlines Logo
12:15 pm - 6:25 pm
DEN
-
BFS
23h 10m
2 stops
Multiple Airlines Logo
6:45 am - 10:33 am
BFS
-
DEN
34h 48m
3 stops
$1,492Multiple Airlines
Sun, Jun 21 - Sun, Jun 28

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 May 10, 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

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

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 9/17

11:35 am-7:30 pm

2 stops24h 55m

Belfast Intl

Thu 9/24

6:10 am-7:00 pm

2 stops19h 50m

$1,187
Quickest round-trip

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 9/17

4:40 pm-11:00 pm

3 stops23h 20m

Belfast Intl

Thu 9/24

6:40 am-7:00 pm

3 stops19h 20m

$1,210

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 9/16

4:15 pm-7:15 pm

2 stops20h 00m

Belfast Intl

Mon 10/5

6:50 pm-3:40 pm

2 stops27h 50m

$1,279

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 9/16

4:15 pm-7:15 pm

2 stops20h 00m

Belfast Intl

Mon 10/5

10:20 pm-6:46 pm

3 stops27h 26m

$1,309

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 9/16

4:15 pm-11:10 pm

3 stops23h 55m

Belfast Intl

Mon 10/5

10:20 pm-6:46 pm

3 stops27h 26m

$1,356

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 6/21

9:10 am-10:50 pm

3 stops30h 40m

Belfast Intl

Sun 6/28

6:45 am-10:35 am

3 stops34h 50m

$1,376

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 6/5

12:15 pm-4:30 pm

2 stops21h 15m

Belfast Intl

Fri 6/12

6:40 pm-10:33 am

3 stops46h 53m

$1,390

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 5/24

12:15 pm-1:05 pm

2 stops17h 50m

Belfast Intl

Sat 5/30

8:30 am-12:51 pm

3 stops35h 21m

$1,459

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sun 6/21

12:15 pm-6:25 pm

2 stops23h 10m

Belfast Intl

Sun 6/28

6:45 am-10:33 am

3 stops34h 48m

$1,492

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

12h 55m

Direct flights

None
The fastest flight from Colorado to Belfast Intl Airport takes 12h 55m
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 $679Free CancellationRating
6.7
7,964 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
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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 6/9
Tue 6/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belfast

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $546
Flights to London Gatwick Airportfrom $448
Flights to London Stansted Airportfrom $515
Flights to London City Airportfrom $660
Flights to London Luton Airportfrom $503
Flights to Glasgow Intl Airportfrom $560
Flights to London Southend Airportfrom $641
Flights to Belfast City Airportfrom $688