Route guide

Castlereagh to Topsham (BHD-EXT): Nonstop Upgrade & Award Space

Aer Lingus flies nonstop from Castlereagh (BHD) to Topsham (EXT) just once a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

Data current as of July 22, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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1
Nonstop flights a week
287 mi
Nonstop distance
Free
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Confirmed upgrade & award space on every BHD to EXT departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Castlereagh to Topsham to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each BHD to EXT departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See BHD to EXT on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Castlereagh to Topsham nonstop

Carriers operating BHD to EXT nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Aer Lingus
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Frequently asked questions about BHD to EXT

How far is Topsham from Castlereagh?
BHD to EXT covers about 287 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from BHD to EXT?
Aer Lingus is currently the only airline flying BHD to EXT nonstop. 2LNR tracks confirmed upgrade and award space on every Aer Lingus departure.
How often does BHD to EXT operate?
The nonstop currently runs once a week, on Aer Lingus. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on BHD to EXT?
Open the BHD to EXT calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Castlereagh to Topsham route, and 2LNR will notify you when space opens. It's free to start.

Never miss BHD to EXT upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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