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Cheap flights from Denver to Belfast from $350

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Belfast departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Denver to Belfast

Cheap round-trip flights

Multiple Airlines Logo
4:40 pm - 8:40 pmDEN-BFS
22h 00m2 stops
Multiple Airlines Logo
7:20 am - 6:05 pmBFS-DEN
17h 45m2 stops
$777Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
5:20 pm - 10:00 pmDEN-BFS
22h 40m2 stops
Multiple Airlines Logo
3:05 pm - 4:00 pmBFS-DEN
31h 55m2 stops
$1,068Multiple Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
12:15 pm - 4:40 pmDEN-BFS
21h 25m2 stops
Multiple Airlines Logo
6:05 am - 10:46 amBFS-DEN
35h 41m3 stops
$1,134Multiple Airlines
Find Deal
Fri, Oct 10 - Fri, Oct 17
Multiple Airlines Logo
8:40 am - 4:40 pmDEN-BFS
25h 00m3 stops
Multiple Airlines Logo
6:05 am - 10:46 amBFS-DEN
35h 41m3 stops
$1,227Multiple Airlines
Find Deal
Fri, Oct 10 - Fri, Oct 17
Multiple Airlines Logo
11:15 am - 4:10 pmDEN-BFS
22h 55m3 stops
Multiple Airlines Logo
5:30 pm - 5:35 pmBFS-DEN
31h 05m2 stops
$1,231Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
1:25 pm - 10:00 pmDEN-BFS
26h 35m3 stops
Multiple Airlines Logo
5:30 pm - 5:35 pmBFS-DEN
31h 05m2 stops
$1,362Multiple Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
12:15 pm - 4:40 pmDEN-BFS
21h 25m2 stops
Multiple Airlines Logo
8:35 am - 5:59 pmBFS-DEN
16h 24m2 stops
$1,483Multiple Airlines
Find Deal
Fri, Oct 10 - Fri, Oct 17

momondo Fare Finder

 
Customize your flight search to find flights from Denver 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 September 16, 2025.
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

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 10/29

4:40 pm-8:40 pm

2 stops22h 00m

Belfast Intl

Wed 11/5

7:20 am-6:05 pm

2 stops17h 45m

$777

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 10/31

5:20 pm-10:00 pm

2 stops22h 40m

Belfast Intl

Fri 11/7

3:05 pm-4:00 pm

2 stops31h 55m

$1,068

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 10/10

12:15 pm-4:40 pm

2 stops21h 25m

Belfast Intl

Fri 10/17

6:05 am-10:46 am

3 stops35h 41m

$1,134

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 10/10

8:40 am-4:40 pm

3 stops25h 00m

Belfast Intl

Fri 10/17

6:05 am-10:46 am

3 stops35h 41m

$1,227

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 10/29

11:15 am-4:10 pm

3 stops22h 55m

Belfast Intl

Wed 11/5

5:30 pm-5:35 pm

2 stops31h 05m

$1,231

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 10/31

1:25 pm-10:00 pm

3 stops26h 35m

Belfast Intl

Fri 11/7

5:30 pm-5:35 pm

2 stops31h 05m

$1,362

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 10/10

12:15 pm-4:40 pm

2 stops21h 25m

Belfast Intl

Fri 10/17

8:35 am-5:59 pm

2 stops16h 24m

$1,483

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 9/26

11:59 pm-9:25 am

3 stops26h 26m

$350

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 9/26

10:55 pm-7:45 am

2 stops49h 50m

$427

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Thu 10/2

7:55 pm-4:40 pm

2 stops13h 45m

$1,584

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Belfast from

How to get the cheapest flight ticket from Denver to Belfast Intl Airport

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

What is the cheapest day to depart on your flight to Belfast Intl Airport?

The cheapest day to depart on your flight to Belfast Intl Airport is on a Thursday when prices can be found for as low as $688. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Denver to Belfast Intl Airport for around $1,000.

What is the cheapest time of day to depart on your flight to Belfast Intl Airport?

In the morning is the cheapest time of day to fly from Denver to Belfast Intl Airport when you can find flight prices for as low as $675. Flying to Belfast Intl Airport in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Belfast Intl Airport is in the afternoon when prices are around $745.

When to book flights from Denver to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Belfast Intl Airport (DEN to BFS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Belfast Intl Airport

Direct flights

None
There are no direct flights from Denver to Belfast Intl Airport. There are no popular flight routes from Denver to Belfast Intl Airport.
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  • How far is Denver Intl to Belfast Intl by plane?

    The straight-line distance from Denver Intl to Belfast Intl is 4351.3 mi. 21h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Denver Intl Airport to Belfast Intl Airport?

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

  • How many operators does momondo search for flights from Denver Intl Airport to Belfast Intl Airport?

  • How old do you have to be to fly from Denver Intl Airport to Belfast Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport 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.

  • What is the most popular airline from Denver to Belfast Intl Airport?

Best airlines flying from Denver to Belfast Intl Airport

Compare and see reviews for airlines that fly from Denver to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $655Free CancellationRating
6.7
7,363 reviews
Search British Airways flights

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newry
Armagh
Cookstown
Dungannon

Why use momondo?

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

Finding the right flight to Belfast from Denver 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 Denver to Belfast with flexible booking policies on momondo?

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

How can momondo help me find flights from Denver to Belfast?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Denver.

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

Of course. momondo tracks the price of Denver to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Belfast Intl Airport trip

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