Earn point on your loyalty program!arrow arc left

Cheap flights from Denver (DEN) to Belfast (BFS)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Denver (DEN) to Belfast (BFS)

How to find the cheapest flight from Denver (DEN) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Denver to Belfast in April , May 2026

28 Apr - 14 May $ 1,275.00
DEN
Denver
Frontier Airlines
2 STOPS
BFS
Belfast
BFS
Belfast
Frontier Airlines
2 STOPS
DEN
Denver
Pick dates
28 Apr - 18 May $ 1,303.00
DEN
Denver
Frontier Airlines
2 STOPS
BFS
Belfast
BFS
Belfast
Frontier Airlines
3 STOPS
DEN
Denver
Pick dates
28 Apr - 18 May $ 1,307.00
DEN
Denver
Frontier Airlines
2 STOPS
BFS
Belfast
BFS
Belfast
Frontier Airlines
3 STOPS
DEN
Denver
Pick dates

Last minute flights from Denver to Belfast

28 Apr - 02 May $ 1,638.00
DEN
Denver
Frontier Airlines
2 STOPS
BFS
Belfast
BFS
Belfast
Frontier Airlines
3 STOPS
DEN
Denver
Pick dates
28 Apr - 01 May $ 1,645.00
DEN
Denver
Frontier Airlines
2 STOPS
BFS
Belfast
BFS
Belfast
Frontier Airlines
3 STOPS
DEN
Denver
Pick dates
28 Apr - 01 May $ 1,649.00
DEN
Denver
Frontier Airlines
2 STOPS
BFS
Belfast
BFS
Belfast
Frontier Airlines
3 STOPS
DEN
Denver
Pick dates

One-way flights to Belfast from Denver

11:59 PM - 12:05 PM
easyJet
3 Stops
30h 11m
DEN - BFS
$ 668
Kiwi
Pick dates
4:40 PM - 4:10 PM
Aer Lingus
2 Stops
17h 40m
DEN - BFS
$ 703
Kiwi
Pick dates
4:40 PM - 3:05 PM
easyJet
2 Stops
16h 20m
DEN - BFS
$ 706
Kiwi
Pick dates

How to find the cheapest flight from Denver (DEN) to Belfast (BFS)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Belfast (BFS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.