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Belfast Intl

$939+ Cheap flights from Denver (DEN) to Belfast Intl (BFS)

DEN — BFS
Nov 29 — Dec 61
Sun 11/29
Sun 12/6
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Denver to Belfast Intl

Cheapest flights from Denver to Belfast Intl

Tue 12/83:40 pm -
3 stops23h 30m
Sun 12/138:00 pm -
3 stops35h 08m
Deal found 10/26$939
Fri 11/273:40 pm -
3 stops19h 55m
Fri 12/49:10 pm -
3 stops27h 50m
Deal found 10/28$958
Mon 10/268:15 am -
3 stops32h 05m
Mon 11/210:05 pm -
2 stops26h 55m
Deal found 10/26$1,405
Tue 10/274:40 pm -
2 stops15h 50m
Sun 11/16:15 am -
2 stops18h 45m
Deal found 10/26$1,420

Find flight deals from Denver to Belfast Intl

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$939
(Mytrip)
Provider with most accurate pricing for Denver Intl-Belfast Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Belfast Intl flights.
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From Denver Intl to Belfast Intl
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Cheapflights Fare Finder

 
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 round-trip

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Tue 12/8

3:40 pm-8:55 pm

2 stops22h 15m

Belfast Intl

Sun 12/13

8:00 pm-12:08 am

3 stops35h 08m

$981

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Fri 11/27

3:40 pm-9:55 pm

2 stops23h 15m

Belfast Intl

Fri 12/4

2:50 pm-6:00 pm

3 stops34h 10m

$995
Quickest round-trip

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Wed 3/10

3:40 pm-7:45 pm

2 stops21h 05m

Belfast Intl

Mon 3/22

8:50 pm-7:00 pm

3 stops28h 10m

$1,290

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Sorted by cheapest first

Compare providers for flights from Denver to Belfast Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Belfast Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Belfast Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Belfast Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Belfast Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Belfast Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip price

Reviews of airlines servicing Belfast Intl

Peruse reviews from past customers who have flown with British Airways from Denver to Belfast Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,275 reviews

Comfort

6.8

Entertainment

6.5

Crew

7.7

Overall

6.7

Boarding

7.0

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,275 reviews
British Airways
6.7
Okay
8,275 reviews

Comfort

6.8

Entertainment

6.5

Crew

7.7

Overall

6.7

Boarding

7.0

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

Related info for your journey

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

    For a flight from Denver to Belfast Intl, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 0 outbound flights to Belfast Intl per day. 1 airline has flights to Belfast Intl from Denver Intl on a regular basis.

  • What is the cheapest airline to fly from Denver to Belfast Intl Airport round-trip?

    Currently priced at $645, British Airways will fly you from Denver to Belfast Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip.

  • 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 vacation 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Denver to Belfast Intl

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$645Average$1,307FlexibilityNo cancel feeOn-time70%

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