Cheap flights from London, ON to Shannon from C$ 1,372

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SNN
24 Aug — 31 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Shannon

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One-way flights from London to Shannon
Search for one-way flight options from London to Shannon. Find affordable one-way fares based on user searches. Data last updated 25 July 2026.

Thu 3/95:40 a.m.
YXU
-
SNN
2 stops20h 50m
United Airlines
Deal found 20/7C$ 1,372

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Shannon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 25 July 2026.
Use the filters below to find and compare flights from London to Shannon that are best for you.

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Price

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LondonShannon

YXU - SNN

YXUSNN

London

Thu 3/9

5:40 a.m.-7:30 a.m.

2 stops20h 50m

C$ 1,372

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/7

Sorted by cheapest first

Best time to book a flight from London to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from London with our price prediction graph.
Estimated round-trip price
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Related info for your journey

Find useful and relevant information for your journey from London to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from London to Shannon that include hotel bookings?

    Yes. In addition to deals on London to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Shannon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Shannon.

  • Can I find deals for business class flights from London to Shannon?

    Yes. Cheapflights offers flight deals from London to Shannon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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