Find Cheap Flights to Belfast Intl Arpt

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to Belfast Intl Arpt

(Round-trip)
Depart: Sun Mar 4 2018 Return: Thu Mar 15 2018 Trip spans 11 days
Multiple Airlines
Multiple Airlines
BOS
BFS
9h 45m
1 stop
BFS
BOS
19h 46m
2 stops
Depart: Thu Nov 16 2017 Return: Mon Nov 27 2017 Trip spans 12 days
British Airways
British Airways
IAD
BFS
10h 55m
1 stop
BFS
IAD
30h 05m
1 stop
Depart: Thu Nov 16 2017 Return: Sun Nov 26 2017 Trip spans 11 days
KLM
KLM
IAD
BFS
18h 52m
2 stops
BFS
IAD
31h 30m
1 stop
Depart: Sat Nov 18 2017 Return: Mon Nov 27 2017 Trip spans 10 days
United
United
BWI
BFS
16h 00m
2 stops
BFS
BWI
28h 03m
2 stops
Depart: Fri Nov 17 2017 Return: Sun Nov 26 2017 Trip spans 10 days
Air Canada
Air Canada
DCA
BFS
24h 26m
2 stops
BFS
DCA
55h 28m
2 stops
Depart: Sun Nov 19 2017 Return: Tue Nov 28 2017 Trip spans 10 days
Virgin Atlantic
Virgin Atlantic
ORD
BFS
34h 43m
2 stops
BFS
ORD
27h 39m
2 stops
Depart: Tue Jan 23 2018 Return: Wed Jan 31 2018 Trip spans 9 days
Multiple Airlines
Multiple Airlines
JFK
BFS
12h 20m
1 stop
BFS
JFK
21h 50m
1 stop
Depart: Mon Feb 5 2018 Return: Sat Feb 17 2018 Trip spans 13 days
British Airways
British Airways
SEA
BFS
11h 55m
1 stop
BFS
SEA
12h 20m
1 stop
Depart: Tue Feb 13 2018 Return: Sun Feb 25 2018 Trip spans 13 days
KLM
KLM
SEA
BFS
15h 30m
1 stop
BFS
SEA
16h 54m
2 stops
Depart: Thu Nov 30 2017 Return: Mon Dec 11 2017 Trip spans 12 days
Multiple Airlines
Multiple Airlines
EWR
BFS
10h 05m
1 stop
BFS
EWR
30h 40m
1 stop
Depart: Sat Nov 18 2017 Return: Sat Nov 25 2017 Trip spans 8 days
Air Canada
Air Canada
DCA
BFS
15h 15m
2 stops
BFS
DCA
15h 56m
2 stops
Depart: Sat Feb 10 2018 Return: Thu Feb 22 2018 Trip spans 13 days
British Airways
British Airways
SEA
BFS
12h 05m
1 stop
BFS
SEA
12h 25m
1 stop
Depart: Sun Nov 19 2017 Return: Mon Nov 27 2017 Trip spans 9 days
Virgin Atlantic
Virgin Atlantic
ORD
BFS
34h 43m
2 stops
BFS
ORD
27h 01m
2 stops
Depart: Wed Feb 7 2018 Return: Tue Feb 20 2018 Trip spans 14 days
KLM
KLM
SEA
BFS
29h 45m
2 stops
BFS
SEA
16h 54m
2 stops
Depart: Mon Feb 26 2018 Return: Sun Mar 4 2018 Trip spans 7 days
Multiple Airlines
Multiple Airlines
EWR
BFS
11h 55m
1 stop
BFS
EWR
28h 45m
1 stop
Depart: Mon Feb 12 2018 Return: Sat Feb 24 2018 Trip spans 13 days
British Airways
British Airways
SEA
BFS
11h 55m
1 stop
BFS
SEA
12h 20m
1 stop
Depart: Mon Feb 12 2018 Return: Sun Feb 25 2018 Trip spans 14 days
KLM
KLM
SEA
BFS
29h 45m
2 stops
BFS
SEA
16h 54m
2 stops
Depart: Mon Nov 27 2017 Return: Wed Dec 13 2017 Trip spans 17 days
Air Canada
Air Canada
LGA
BFS
13h 45m
2 stops
BFS
LGA
15h 22m
2 stops
Depart: Sun Mar 25 2018 Return: Sat Mar 31 2018 Trip spans 7 days
Multiple Airlines
Multiple Airlines
IAD
BFS
12h 30m
1 stop
BFS
IAD
29h 35m
1 stop
Depart: Sat Feb 17 2018 Return: Thu Mar 1 2018 Trip spans 13 days
British Airways
British Airways
SEA
BFS
16h 15m
1 stop
BFS
SEA
15h 45m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

New York
only $650
only $518
Baltimore
$570
Seattle
$552
Chicago
$603
Newark
$524
Washington
only $540
only $601
Boston
$512
Destination

Belfast
$512