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Cheap flights from Denver to Belfast from $280

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 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:40 pm - 7:20 pm
DEN
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
8:45 am - 7:00 pm
BFS
-
DEN
41h 15m
3 stops
$1,071Multiple Airlines
Tue, May 5 - Sat, May 16
Multiple Airlines Logo
4:40 pm - 11:20 pm
DEN
-
BFS
23h 40m
3 stops
Multiple Airlines Logo
8:45 am - 7:00 pm
BFS
-
DEN
41h 15m
3 stops
$1,073Multiple Airlines
Tue, May 5 - Sat, May 16
Multiple Airlines Logo
4:40 pm - 7:20 pm
DEN
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
7:20 am - 7:00 pm
BFS
-
DEN
18h 40m
2 stops
$1,147Multiple Airlines
Tue, May 5 - Sat, May 16
Multiple Airlines Logo
4:40 pm - 12:45 pm
DEN
-
BFS
14h 05m
2 stops
Multiple Airlines Logo
6:00 pm - 6:35 pm
BFS
-
DEN
30h 35m
3 stops
$1,152Multiple Airlines
Tue, Mar 17 - Fri, Mar 20
Multiple Airlines Logo
4:40 pm - 10:35 pm
DEN
-
BFS
23h 55m
3 stops
Multiple Airlines Logo
6:00 pm - 6:35 pm
BFS
-
DEN
30h 35m
3 stops
$1,198Multiple Airlines
Tue, Mar 17 - Fri, Mar 20
Multiple Airlines Logo
9:40 am - 11:30 am
DEN
-
BFS
18h 50m
3 stops
Multiple Airlines Logo
6:15 am - 7:00 pm
BFS
-
DEN
19h 45m
2 stops
$1,543Multiple Airlines
Fri, Jul 31 - Tue, Aug 4
Multiple Airlines Logo
4:40 pm - 12:45 pm
DEN
-
BFS
14h 05m
2 stops
Multiple Airlines Logo
9:20 pm - 6:35 pm
BFS
-
DEN
27h 15m
2 stops
$1,565Multiple Airlines
Tue, Mar 17 - Fri, Mar 20
Multiple Airlines Logo
9:40 am - 11:30 am
DEN
-
BFS
18h 50m
3 stops
Multiple Airlines Logo
4:05 pm - 12:40 pm
BFS
-
DEN
27h 35m
3 stops
$1,652Multiple Airlines
Fri, Jul 31 - Tue, Aug 4
Multiple Airlines Logo
4:40 pm - 9:50 pm
DEN
-
BFS
22h 10m
2 stops
Multiple Airlines Logo
6:15 am - 7:00 pm
BFS
-
DEN
19h 45m
2 stops
$1,707Multiple Airlines
Fri, Jul 31 - Tue, Aug 4
Multiple Airlines Logo
11:15 am - 8:30 pm
DEN
-
BFS
27h 15m
3 stops
Multiple Airlines Logo
8:55 pm - 3:35 pm
BFS
-
DEN
24h 40m
2 stops
$1,790Multiple Airlines
Fri, Mar 13 - Tue, Mar 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 February 6, 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

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 5/5

4:40 pm-7:20 pm

2 stops19h 40m

Belfast Intl

Sat 5/16

8:45 am-7:00 pm

3 stops41h 15m

$1,071

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 5/5

4:40 pm-11:20 pm

3 stops23h 40m

Belfast Intl

Sat 5/16

8:45 am-7:00 pm

3 stops41h 15m

$1,073

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 5/5

4:40 pm-7:20 pm

2 stops19h 40m

Belfast Intl

Sat 5/16

7:20 am-7:00 pm

2 stops18h 40m

$1,147

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 3/17

4:40 pm-12:45 pm

2 stops14h 05m

Belfast Intl

Fri 3/20

6:00 pm-6:35 pm

3 stops30h 35m

$1,152

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 3/17

4:40 pm-10:35 pm

3 stops23h 55m

Belfast Intl

Fri 3/20

6:00 pm-6:35 pm

3 stops30h 35m

$1,198

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 7/31

9:40 am-11:30 am

3 stops18h 50m

Belfast Intl

Tue 8/4

6:15 am-7:00 pm

2 stops19h 45m

$1,543

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 3/17

4:40 pm-12:45 pm

2 stops14h 05m

Belfast Intl

Fri 3/20

9:20 pm-6:35 pm

2 stops27h 15m

$1,565

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 7/31

9:40 am-11:30 am

3 stops18h 50m

Belfast Intl

Tue 8/4

4:05 pm-12:40 pm

3 stops27h 35m

$1,652

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 7/31

4:40 pm-9:50 pm

2 stops22h 10m

Belfast Intl

Tue 8/4

6:15 am-7:00 pm

2 stops19h 45m

$1,707

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 3/13

11:15 am-8:30 pm

3 stops27h 15m

Belfast Intl

Tue 3/17

8:55 pm-3:35 pm

2 stops24h 40m

$1,790

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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

Fastest flight time

15h 55m

Direct flights

None
The fastest flight from Denver to Belfast Intl Airport takes 15h 55m
There are no direct flights from Denver to Belfast Intl Airport. There are no popular flight routes from Denver to Belfast Intl Airport.
Search flight deals

  • How far is Denver Intl to Belfast Intl by plane?

    The straight-line distance from Denver Intl to Belfast Intl is 4351.3 mi. 15h 55m 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 $654Free CancellationRating
6.7
7,716 reviews
Search British Airways flights

  • How do I get Price Alerts for flights from Denver to Belfast Intl Airport?

    Price Alerts will notify you by email when the price for flights to Belfast Intl Airport from Denver decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Denver to Belfast Intl Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Belfast?

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