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Cheap flights from Denver to Belfast from £788

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Belfast departing on 5/5. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:40 - 19:20
DEN
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
08:45 - 19:00
BFS
-
DEN
41h 15m
3 stops
£788Multiple Airlines
Tue, 5 May - Sat, 16 May
Multiple Airlines Logo
16:40 - 23:20
DEN
-
BFS
23h 40m
3 stops
Multiple Airlines Logo
08:45 - 19:00
BFS
-
DEN
41h 15m
3 stops
£790Multiple Airlines
Tue, 5 May - Sat, 16 May
Multiple Airlines Logo
16:40 - 19:20
DEN
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
07:20 - 19:00
BFS
-
DEN
18h 40m
2 stops
£844Multiple Airlines
Tue, 5 May - Sat, 16 May
Multiple Airlines Logo
16:40 - 12:45
DEN
-
BFS
14h 05m
2 stops
Multiple Airlines Logo
18:00 - 18:35
BFS
-
DEN
30h 35m
3 stops
£848Multiple Airlines
Tue, 17 Mar - Fri, 20 Mar
Multiple Airlines Logo
16:40 - 22:35
DEN
-
BFS
23h 55m
3 stops
Multiple Airlines Logo
18:00 - 18:35
BFS
-
DEN
30h 35m
3 stops
£882Multiple Airlines
Tue, 17 Mar - Fri, 20 Mar
Multiple Airlines Logo
11:15 - 16:10
DEN
-
BFS
21h 55m
3 stops
Multiple Airlines Logo
07:00 - 17:35
BFS
-
DEN
41h 35m
3 stops
£1,053Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
11:15 - 16:10
DEN
-
BFS
21h 55m
3 stops
Multiple Airlines Logo
08:35 - 18:05
BFS
-
DEN
16h 30m
2 stops
£1,054Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
17:45 - 20:20
DEN
-
BFS
19h 35m
2 stops
Multiple Airlines Logo
08:35 - 18:05
BFS
-
DEN
16h 30m
2 stops
£1,092Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
09:40 - 11:30
DEN
-
BFS
18h 50m
3 stops
Multiple Airlines Logo
06:15 - 19:00
BFS
-
DEN
19h 45m
2 stops
£1,136Multiple Airlines
Fri, 31 Jul - Tue, 4 Aug
Multiple Airlines Logo
16:40 - 12:45
DEN
-
BFS
14h 05m
2 stops
Multiple Airlines Logo
21:20 - 18:35
BFS
-
DEN
27h 15m
2 stops
£1,152Multiple Airlines
Tue, 17 Mar - Fri, 20 Mar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 7 February 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

16:40-19:20

2 stops19h 40m

Belfast Intl

Sat 16/5

08:45-19:00

3 stops41h 15m

£788

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 5/5

16:40-23:20

3 stops23h 40m

Belfast Intl

Sat 16/5

08:45-19:00

3 stops41h 15m

£790

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 5/5

16:40-19:20

2 stops19h 40m

Belfast Intl

Sat 16/5

07:20-19:00

2 stops18h 40m

£844

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 17/3

16:40-12:45

2 stops14h 05m

Belfast Intl

Fri 20/3

18:00-18:35

3 stops30h 35m

£848

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 17/3

16:40-22:35

3 stops23h 55m

Belfast Intl

Fri 20/3

18:00-18:35

3 stops30h 35m

£882

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 25/2

11:15-16:10

3 stops21h 55m

Belfast Intl

Wed 4/3

07:00-17:35

3 stops41h 35m

£1,053

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 25/2

11:15-16:10

3 stops21h 55m

Belfast Intl

Wed 4/3

08:35-18:05

2 stops16h 30m

£1,054

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Wed 25/2

17:45-20:20

2 stops19h 35m

Belfast Intl

Wed 4/3

08:35-18:05

2 stops16h 30m

£1,092

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Fri 31/7

09:40-11:30

3 stops18h 50m

Belfast Intl

Tue 4/8

06:15-19:00

2 stops19h 45m

£1,136

DenverBelfast

DEN - BFS

DENBFS

Denver Intl

Tue 17/3

16:40-12:45

2 stops14h 05m

Belfast Intl

Fri 20/3

21:20-18:35

2 stops27h 15m

£1,152

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 return 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 50m

Direct flights

None
The fastest flight from Denver to Belfast Intl Airport takes 15h 50m
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 distance between Denver Intl and Belfast Intl is about 4351.3 mi. Typically, this will take 15h 50m by plane in normal conditions.

  • 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 updated daily.

  • 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 required travel and health documents for your Belfast Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

    Search flight deals from Denver to Belfast Intl Airport. While viewing offers you’ll have the option to create a Price Alert.

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

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near Belfast?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to Belfast for you.

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?

momondo provides multiple filters to help you find the best flight to Belfast from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Belfast from Denver. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Belfast Intl Airport trip

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