$395+ Cheap flights from Colorado to Belfast Intl (BFS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
Mar 16 — Mar 231
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Colorado to Belfast Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Colorado to Belfast Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Colorado to Belfast IntlExplore the most affordable flight options available from Colorado to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.
Explore the most affordable flight options available from Colorado to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:10 am
DEN
- BFS
2 stops25h 25m
Multiple Airlines
Sun 4/126:00 pm
BFS
- DEN
2 stops27h 20m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$959
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:45 pm
DEN
- BFS
2 stops21h 55m
Multiple Airlines
Thu 2/267:05 am
BFS
- DEN
3 stops34h 53m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,382
This Mytrip deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1611:15 am
DEN
- BFS
3 stops26h 00m
Multiple Airlines
Wed 2/188:55 pm
BFS
- DEN
3 stops45h 03m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,430
Best flights from Colorado to Belfast IntlDiscover carefully curated flight deals from Colorado to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 14, 2026.
Discover carefully curated flight deals from Colorado to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 14, 2026.
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:10 am
DEN
- BFS
2 stops25h 25m
Multiple Airlines
Sun 4/126:00 pm
BFS
- DEN
2 stops27h 20m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$959
Last-minute flights from Colorado to Belfast IntlDiscover last-minute flight deals from Colorado to Belfast Intl. Data last updated February 14, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Belfast Intl. Data last updated February 14, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1611:15 am
DEN
- BFS
3 stops26h 00m
Multiple Airlines
Wed 2/188:55 pm
BFS
- DEN
3 stops45h 03m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,430
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:45 pm
DEN
- BFS
2 stops21h 55m
Multiple Airlines
Thu 2/267:05 am
BFS
- DEN
3 stops34h 53m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,382
One-way flights from Colorado to Belfast IntlSearch for one-way flight options from Colorado to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
Search for one-way flight options from Colorado to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2011:01 am
DEN
- BFS
3 stops38h 14m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/184:40 pm
DEN
- BFS
3 stops36h 15m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:40 pm
DEN
- BFS
3 stops33h 55m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$445
Find flight deals from Colorado to Belfast Intl
Keep the following information in mind while searching for Colorado to Belfast Intl flight deals. Data was last updated February 14, 2026.
Round-trip from | $959 (Mytrip) |
|---|---|
One-way from | $395 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to Belfast Intl 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, Cheapflights users made 2,558,603 searches. Data last updated February 14, 2026.
Use the filters below to find and compare flights from Colorado to Belfast Intl Airport that are best for you.
Fly from
Colorado
Fly to
Belfast Intl
Route
Depart
Return
Price
DenverBelfast
DEN - BFS
DENBFS
Denver Intl
Wed 4/8
11:10 am-7:35 pm
2 stops25h 25m
Belfast Intl
Sun 4/12
6:00 pm-2:20 pm
2 stops27h 20m
$959
DenverBelfast
DEN - BFS
DENBFS
Denver Intl
Sat 6/20
11:01 am-8:15 am
3 stops38h 14m
$395
DenverBelfast
DEN - BFS
DENBFS
Denver Intl
Thu 6/18
4:40 pm-11:55 am
3 stops36h 15m
$439
DenverBelfast
DEN - BFS
DENBFS
Denver Intl
Fri 6/19
4:40 pm-9:35 am
3 stops33h 55m
$445
Best time to book a flight from Colorado to Belfast Intl
Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Colorado with our price prediction graph.
DEN-BFS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Colorado to Belfast Intl Airport
USCO-BFS
DEN-BFS
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Colorado to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Belfast Intl flight routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Colorado to Belfast Intl
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Belfast Intl
Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 14, 2026.
Complete your trip
Complete your trip to Belfast Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Belfast Intl by cabin class
Find flights from Colorado to Belfast Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Belfast Intl flights
Browse other Colorado and Belfast Intl flight options. Last updated on February 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Colorado to Belfast Intl flights
Consider these flights traveling from Colorado to Belfast Intl.
Top airline flying from Colorado to Belfast Intl
Discover the top airline that operate flights from Colorado to Belfast Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$679 | Average$995 | FlexibilityNo cancel fee | On-time70% |