Route guide

Boston to Shannon (BOS-SNN): Nonstop Upgrade & Award Space

Aer Lingus, Iberia Airlines, and American Airlines fly the BOS to SNN nonstop about 7 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every BOS to SNN departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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7
Nonstop flights a week
2,888 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every BOS to SNN 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 Boston to Shannon 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 BOS to SNN 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 BOS to SNN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Boston to Shannon nonstop

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

  • Aer Lingus
  • Iberia Airlines
  • American Airlines
See BOS to SNN on the interactive map →

Frequently asked questions about BOS to SNN

How far is Shannon from Boston?
BOS to SNN covers about 2,888 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from BOS to SNN?
Aer Lingus, Iberia Airlines, and American Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on all three of them.
How many flights a week are there from BOS to SNN?
About 7 nonstop flights a week run between Boston and Shannon in the current schedule, operated by Aer Lingus, Iberia Airlines, and American Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on BOS to SNN?
Open the BOS to SNN calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Boston to Shannon route, and 2LNR will notify you when space opens. It's free to start.

Never miss BOS to SNN upgrade or award space

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