Cheap flights from Nashua to Shannon from CA $449

View CA $449 flight on Tue, Aug. 26, 2025Opens in a new window

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Cheap flights from Nashua (BOS) to Shannon (SNN)

Prices were available within the past 7 days and start at CA $449 for one-way flights and CA $489 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Aug. 17 - Tue, Aug. 26
BOS
Boston
SNN
Shannon
CA $489 Roundtrip, found 1 day ago
CA $489
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Aug. 17 from Boston to Shannon, returning Tue, Aug. 26, priced at CA $489 found 1 day ago
Aer Lingus
Mon, Sep. 1 - Wed, Sep. 10
BOS
Boston
SNN
Shannon
CA $502 Roundtrip, found 4 days ago
CA $502
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Mon, Sep. 1 from Boston to Shannon, returning Wed, Sep. 10, priced at CA $502 found 4 days ago
United
Tue, Aug. 26 - Tue, Sep. 2
BOS
Boston
SNN
Shannon
CA $521 Roundtrip, found 6 days ago
CA $521
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug. 26 from Boston to Shannon, returning Tue, Sep. 2, priced at CA $521 found 6 days ago
KLM
Tue, Aug. 26 - Tue, Sep. 2
BOS
Boston
SNN
Shannon
CA $521 Roundtrip, found 6 days ago
CA $521
Roundtrip
found 6 days ago
Select KLM flight, departing Tue, Aug. 26 from Boston to Shannon, returning Tue, Sep. 2, priced at CA $521 found 6 days ago
United
Wed, Aug. 27 - Fri, Sep. 5
BOS
Boston
SNN
Shannon
CA $522 Roundtrip, found 5 days ago
CA $522
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug. 27 from Boston to Shannon, returning Fri, Sep. 5, priced at CA $522 found 5 days ago
American Airlines
Wed, Aug. 27 - Thu, Sep. 4
BOS
Boston
SNN
Shannon
CA $788 Roundtrip, found 5 days ago
CA $788
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug. 27 from Boston to Shannon, returning Thu, Sep. 4, priced at CA $788 found 5 days ago

Find the cheapest month to fly from Boston (BOS) to Shannon (SNN)

November is typically the cheapest month to fly

From CA $467 - CA $1,220 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.