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Cheap flights from Denver to Belfast Intl Airport from £661

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BFS
21 Jun — 28 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Denver to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Denver to Belfast Intl
Explore the most affordable flight options available from Denver to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 May 2026.

Tue 11/816:40
DEN
-
BFS
2 stops22h 35m
Multiple Airlines
Tue 18/808:25
BFS
-
DEN
2 stops35h 15m
Multiple Airlines
Deal found 17/5£661
Mon 5/1016:40
DEN
-
BFS
2 stops21h 00m
Multiple Airlines
Wed 21/1005:55
BFS
-
DEN
3 stops45h 22m
Multiple Airlines
Deal found 18/5£734
Sat 6/611:25
DEN
-
BFS
3 stops27h 05m
Multiple Airlines
Wed 10/608:30
BFS
-
DEN
2 stops33h 50m
Multiple Airlines
Deal found 21/5£797
Sat 4/716:40
DEN
-
BFS
2 stops23h 45m
Multiple Airlines
Sat 11/720:15
BFS
-
DEN
3 stops46h 05m
Multiple Airlines
Deal found 20/5£799
Wed 17/612:15
DEN
-
BFS
2 stops24h 00m
Multiple Airlines
Tue 23/623:30
BFS
-
DEN
3 stops42h 50m
Multiple Airlines
Deal found 18/5£809
Mon 15/609:40
DEN
-
BFS
3 stops28h 00m
Multiple Airlines
Mon 22/606:30
BFS
-
DEN
3 stops35h 50m
Multiple Airlines
Deal found 18/5£815
Wed 16/911:25
DEN
-
BFS
3 stops20h 55m
Multiple Airlines
Tue 22/907:35
BFS
-
DEN
3 stops39h 55m
Multiple Airlines
Deal found 17/5£828
Mon 6/711:25
DEN
-
BFS
3 stops29h 40m
Multiple Airlines
Fri 17/707:20
BFS
-
DEN
3 stops35h 00m
Multiple Airlines
Deal found 20/5£873

Find flight deals from Denver to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Belfast Intl (BFS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 May 2026.

Round-trip from

£661
11/8-18/8
  • 11/8-18/8
  • 4 total stops
  • 57h 50m total
  • Denver to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Denver 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 858,174 searches. Data last updated 22 May 2026.
Use the filters below to find and compare flights from Denver to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Sat 4/7

16:40-23:25

2 stops23h 45m

Belfast Intl

Sat 11/7

20:15-11:20

3 stops46h 05m

£799

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 17/6

12:15-19:15

2 stops24h 00m

Belfast Intl

Tue 23/6

23:30-11:20

3 stops42h 50m

£809

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 16/9

11:25-15:20

3 stops20h 55m

Belfast Intl

Tue 22/9

07:35-16:30

3 stops39h 55m

£828

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 15/6

09:40-20:40

3 stops28h 00m

Belfast Intl

Sun 21/6

21:25-11:20

3 stops44h 55m

£881
Fastest return journey

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 5/10

16:40-20:40

2 stops21h 00m

Belfast Intl

Wed 21/10

05:55-23:08

2 stops24h 13m

£905

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Mon 6/7

16:40-15:55

2 stops16h 15m

Belfast Intl

Fri 17/7

07:20-11:20

3 stops35h 00m

£931

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 8/7

20:10-20:35

2 stops17h 25m

Belfast Intl

Mon 13/7

06:40-10:33

3 stops34h 53m

£949

Flights are sorted by cheapest return flights first.

Deals found on 20/5

Sorted by cheapest first

Best time to book a flight from Denver to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Denver with our price prediction graph.
Estimated return 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.

Related info for your journey

Find useful and relevant information for your journey from Denver to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Belfast Intl?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly out of when you book flights from Denver to Belfast Intl. 0 airlines have flights from Denver Intl to Belfast Intl on a regular basis. Booking flights from Denver Intl to Belfast Intl should not be difficult; the airport handles an average of 0 outbound flights to Belfast Intl per day.

  • Can I find deals for flights from Denver to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Denver to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Denver to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Belfast Intl.

  • Can I find deals for business class flights from Denver to Belfast Intl?

    Yes. Cheapflights offers flight deals from Denver to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Dungannon

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Denver to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Belfast City flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Denver to Belfast Intl?

Cheapflights makes it easy to find Denver to Belfast Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Denver to Belfast Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Denver to Belfast Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Denver to Belfast Intl with no change fees?

Need flexible booking options for your flight to Belfast Intl from Denver? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Denver to Belfast Intl become cheaper?

Not ready to book yet? You can track prices for flights from Denver to Belfast Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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