Cheapest€63.27
- easyJet J913817:181h 20m18:38Saint Helier JERBelfast BHD
Door to door 4h 30mCO2 166.3 kgChanges 0Fixed, no changes
Saint Helier to Belfast flight
Flights from Saint Helier to Belfast start at €70.35 and take 4h 27m at their fastest.
The Flights from Saint Helier to Belfast starts at €70.35 and takes 4h 27m door to door, run by 2 operators over 676 km, with around 10 departures a day. Fares bottom out about 30 days before departure.
- 4h 27mDoor to door
- 1h 17mMoving
- €70.35From
- 166.3 kgCO2
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€78.61
- Blue Islands BI370011:211h 17m12:38Saint Helier JERBelfast BFS
Door to door 4h 27mCO2 166.3 kgChanges 0Fixed, no changes
Lowest CO2€83.33
- Emerald Airlines EA751707:301h 7m08:37Saint Helier JERDublin DUB
- Irish Rail IR560809:271h 12m10:39Dublin HeustonBelfast Lanyon Place
Changes at Dublin, with 50 minutes between services and a walk of about 14 minutes.
Door to door 5h 6mCO2 142.4 kgChanges 1Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 Blue Islands | €70.94 |
| easyJet | €63.27 |
The flight gets you into Belfast. It does not get you a bed, and neither do we.
Where to stay in Belfast
Hotels and apartments near downtown, most of them with free cancellation, on a map that shows what is walkable.
Search Belfast on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Saint Helier to Belfast
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €72.7190 days
- €52.6560 days
- €52.0645 days
- €50.2930 days
- €75.0721 days
- €73.8914 days
- €98.087 days
- €86.873 days
- €125.221 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €50.29.
- How much it moves
- The gap between the cheapest and most expensive lead time is 149 percent. The most expensive point is €125.22, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €96.31Sun
- €77.43Mon
- €70.35Tue
- €76.25Wed
- €93.95Thu
- €95.72Fri
- €75.07Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Saint Helier
Air
- JER
Belfast
Air
- BFS
- BHD
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 60% of the services we sell on this corridor run through without a change. The remaining 40% involve one connection.
- How far it really runs
- The route covers 676 km against 656 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Dublin, Exeter, Bristol, Cardiff. The gap between arriving and leaving is 50 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 19 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Saint Helier at 06:09 and the last at 17:20, across 10 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Saint Helier to Belfast
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Saint Helier to Belfast take?
The Flight from Saint Helier to Belfast takes 4h 27m door to door, of which 1h 17m is spent moving. The route runs 676 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Saint Helier to Belfast cost?
The Flight from Saint Helier to Belfast starts at €70.35 for one passenger, checked on September 12, 2026. A typical fare is €75.07. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Saint Helier to Belfast?
2 operators run the Flight from Saint Helier to Belfast: Blue Islands, easyJet. Between them they file around 10 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Saint Helier to Belfast use?
The Flight from Saint Helier to Belfast leaves from Saint Helier JER and arrives at Belfast BFS. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Saint Helier to Belfast?
Fares for the Flight from Saint Helier to Belfast bottom out around 30 days ahead, at €50.29. The gap between the cheapest and most expensive lead time across the window is 149 percent, measured on September 12, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Saint Helier to Belfast produce?
The Flight from Saint Helier to Belfast produces about 166.3 kg of CO2 per passenger over 676 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Saint Helier to Belfast on September 12, 2026: 676 km of route against 656 km in a straight line, 10 services a day, 2 operators, a cheapest fare of €70.35, and 4h 27m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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BFS is not in Belfast, and the drive in from it is the part of the trip nobody plans. We sell the flight and stop at the terminal door.
Getting from BFS into Belfast
A price agreed before you fly, a driver at arrivals, and a car big enough for the bags.
Book a ride from BFS with Welcome PickupsOr check Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.