What is the cheapest airline that flies from Denver Intl to Northern Ireland?

British Airways is the most popular carrier operating from Denver Intl to Northern Ireland

When did momondo last update prices for flights from Denver Intl Airport to Northern Ireland?

Prices for flights from Denver Intl Airport to Northern Ireland are refreshed on a daily basis.

How many operators does momondo search for flights from Denver Intl Airport to Northern Ireland?

As of August 2026, there is 1 operator available to choose from for flights from Denver Intl Airport to Northern Ireland.

How old do you have to be to fly from Denver Intl Airport to Northern Ireland?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$376 Cheap Flights from Denver to Northern Ireland in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Northern Ireland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:01 pm - 1:50 pmDEN Denver Intl-BHD Belfast City

13h 49m1 stop London Heathrow

8:40 am - 3:10 pmBHD Belfast City-DEN Denver Intl

13h 30m1 stop London Heathrow

$960British Airways

Sun, Nov 15 - Wed, Nov 18

5:01 pm - 1:50 pmDEN Denver Intl-BHD Belfast City

13h 49m1 stop London Heathrow

8:40 am - 3:10 pmBHD Belfast City-DEN Denver Intl

13h 30m1 stop London Heathrow

$960British Airways

Sun, Jan 31 - Wed, Feb 3

6:35 pm - 3:40 pmDEN Denver Intl-BHD Belfast City

14h 05m1 stop London Heathrow

10:05 am - 4:25 pmBHD Belfast City-DEN Denver Intl

13h 20m1 stop London Heathrow

$995British Airways

Wed, Oct 7 - Wed, Oct 14

6:09 pm - 6:45 pmDEN Denver Intl-BHD Belfast City

17h 36m2 stops Chicago O'Hare Intl London Heathrow

6:30 am - 6:58 pmBHD Belfast City-DEN Denver Intl

19h 28m2 stops London Heathrow Dallas/Fort Worth

$1,023American Airlines

Wed, Oct 7 - Wed, Oct 14

1:07 pm - 1:35 pmDEN Denver Intl-BHD Belfast City

17h 28m2 stops Dallas/Fort Worth London Heathrow

10:05 am - 4:25 pmBHD Belfast City-DEN Denver Intl

13h 20m1 stop London Heathrow

$1,023British Airways

Wed, Oct 7 - Wed, Oct 14

4:40 pm - 3:15 pmDEN Denver Intl-BFS Belfast Intl

15h 35m2 stops Reykjavik Keflavik Intl Manchester

6:15 am - 8:17 pmBFS Belfast Intl-DEN Denver Intl

21h 02m3 stops London Gatwick Zurich Toronto Pearson Intl

$1,026Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

6:40 pm - 3:30 pmDEN Denver Intl-BHD Belfast City

13h 50m1 stop London Heathrow

6:30 am - 4:30 pmBHD Belfast City-DEN Denver Intl

17h 00m1 stop London Heathrow

$1,059British Airways

Mon, Aug 31 - Fri, Sep 11

4:40 pm - 3:15 pmDEN Denver Intl-BFS Belfast Intl

15h 35m2 stops Reykjavik Keflavik Intl Manchester

5:55 am - 8:17 pmBFS Belfast Intl-DEN Denver Intl

21h 22m2 stops Edinburgh Turnhouse Toronto Pearson Intl

$1,069Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

6:40 pm - 3:30 pmDEN Denver Intl-BHD Belfast City

13h 50m1 stop London Heathrow

10:05 am - 4:30 pmBHD Belfast City-DEN Denver Intl

13h 25m1 stop London Heathrow

$1,073Multiple Airlines

Mon, Sep 7 - Wed, Sep 16

9:05 am - 3:20 pmDEN Denver Intl-BHD Belfast City

23h 15m2 stops Chicago O'Hare Intl London Heathrow

6:30 am - 4:30 pmBHD Belfast City-DEN Denver Intl

17h 00m1 stop London Heathrow

$1,075British Airways

Tue, Sep 1 - Fri, Sep 11

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British Airways flights from Denver to Northern Ireland

Our best British Airways deals on Denver to Northern Ireland flight tickets

British Airways

Nov 15

DEN5:01 pmDenver Intl

13h 49m

1 stop

BHD1:50 pmBelfast City

Nov 18

BHD8:40 amBelfast City

13h 30m

1 stop

DEN3:10 pmDenver Intl

$960

British Airways

Oct 7

DEN6:35 pmDenver Intl

14h 05m

1 stop

BHD3:40 pmBelfast City

Oct 14

BHD10:05 amBelfast City

13h 20m

1 stop

DEN4:25 pmDenver Intl

$995

British Airways

Aug 31

DEN6:40 pmDenver Intl

13h 50m

1 stop

BHD3:30 pmBelfast City

Sep 11

BHD6:30 amBelfast City

17h 00m

1 stop

DEN4:30 pmDenver Intl

$1,059

American Airlines flights from Denver to Northern Ireland

Our best American Airlines deals on Denver to Northern Ireland flight tickets

American Airlines

Oct 7

DEN6:09 pmDenver Intl

17h 36m

2 stops

BHD6:45 pmBelfast City

Oct 14

BHD6:30 amBelfast City

19h 28m

2 stops

DEN6:58 pmDenver Intl

$1,023

American Airlines

Sep 1

DEN4:21 pmDenver Intl

18h 14m

2 stops

BHD5:35 pmBelfast City

Sep 11

BHD6:30 amBelfast City

17h 27m

2 stops

DEN4:57 pmDenver Intl

$1,083

American Airlines

Aug 31

DEN2:21 pmDenver Intl

18h 09m

2 stops

BHD3:30 pmBelfast City

Sep 11

BHD6:30 amBelfast City

18h 12m

2 stops

DEN5:42 pmDenver Intl

$1,090

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Sun 11/15

5:01 pm-1:50 pm

1 stop13h 49m

Belfast City

Wed 11/18

8:40 am-3:10 pm

1 stop13h 30m

$960

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Sun 1/31

5:01 pm-1:50 pm

1 stop13h 49m

Belfast City

Wed 2/3

8:40 am-3:10 pm

1 stop13h 30m

$960

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Wed 10/7

6:35 pm-3:40 pm

1 stop14h 05m

Belfast City

Wed 10/14

10:05 am-4:25 pm

1 stop13h 20m

$995

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Wed 10/7

6:09 pm-6:45 pm

2 stops17h 36m

Belfast City

Wed 10/14

6:30 am-6:58 pm

2 stops19h 28m

$1,023

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Wed 10/7

1:07 pm-1:35 pm

2 stops17h 28m

Belfast City

Wed 10/14

10:05 am-4:25 pm

1 stop13h 20m

$1,023

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Tue 9/29

4:40 pm-3:15 pm

2 stops15h 35m

Belfast Intl

Tue 10/6

6:15 am-8:17 pm

3 stops21h 02m

$1,026

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Mon 8/31

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Fri 9/11

6:30 am-4:30 pm

1 stop17h 00m

$1,059

DenverBelfast

DEN Denver Intl - BFS Belfast Intl

DENBFS

Denver Intl

Tue 9/29

4:40 pm-3:15 pm

2 stops15h 35m

Belfast Intl

Tue 10/6

5:55 am-8:17 pm

2 stops21h 22m

$1,069

Quickest round-trip

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Mon 9/7

6:40 pm-3:30 pm

1 stop13h 50m

Belfast City

Wed 9/16

10:05 am-4:30 pm

1 stop13h 25m

$1,073

DenverBelfast

DEN Denver Intl - BHD Belfast City

DENBHD

Denver Intl

Tue 9/1

9:05 am-3:20 pm

2 stops23h 15m

Belfast City

Fri 9/11

6:30 am-4:30 pm

1 stop17h 00m

$1,075

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Denver to Northern Ireland flights?

You could potentially save up to 31% on your flight if you consider stops on a Denver to Northern Ireland flight.

Cheap Denver to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Northern Ireland

Best Price Found	$376
Fastest flight time	13h 50m
Direct flights	None

The best one-way flight to Northern Ireland from Denver in the past 72 hours is $376. The best round-trip flight deal from Denver to Northern Ireland found on momondo in the last 72 hours is $960.

The fastest flight from Denver to Northern Ireland takes 13h 50m

There are no direct flights from Denver to Northern Ireland. There are no popular flight routes from Denver to Northern Ireland.

Search flight deals

Frequently asked questions about flying from Denver to Northern Ireland

When did momondo last update prices for flights from Denver Intl Airport to Northern Ireland?
Prices for flights from Denver Intl Airport to Northern Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Northern Ireland?
As of August 2026, there is 1 operator available to choose from for flights from Denver Intl Airport to Northern Ireland.
How old do you have to be to fly from Denver Intl Airport to Northern Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Denver to Northern Ireland

Compare and see reviews for airlines that fly from Denver to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $645	Free Cancellation	Rating 6.7 8,174 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Northern Ireland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Denver to Northern Ireland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Denver to Northern Ireland with flexible booking policies on momondo?

All flight searches from Denver to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Denver to Northern Ireland?

momondo helps you find the best flight between Denver and Northern Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Denver to Northern Ireland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Denver to Northern Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Northern Ireland and let you know when they change.