ONT - SNN

€662 Find Cheap Flights from Ontario to Shannon – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
€662
Typical prices: €596-€596
United Airlines
Mon 16/4Fri 20/4
ONT - SNN • 3 stops
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Booking Insights
Flight Deals

Cheap Flights from Ontario to Shannon (ONT-SNN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ontario to Shannon

Fri, 16 Apr - Tue, 20 Apr
United Airlines Logo
18:53 - 10:15ONT  Ontario-SNN Shannon
55h 22m3 stops San Francisco Boston Logan Intl Newark
United Airlines Logo
12:30 - 09:57SNN  Shannon-ONT Ontario
29h 27m2 stops Newark San Francisco
€662United Airlines
Fri, 16 Apr - Tue, 20 Apr
United Airlines Logo
06:00 - 10:15ONT  Ontario-SNN Shannon
20h 15m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
12:30 - 22:31SNN  Shannon-ONT Ontario
18h 01m2 stops Newark Chicago O'Hare Intl
€865United Airlines
Fri, 23 Apr - Sat, 8 May
United Airlines Logo
07:00 - 10:15ONT  Ontario-SNN Shannon
19h 15m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
12:30 - 22:31SNN  Shannon-ONT Ontario
18h 01m2 stops Newark Chicago O'Hare Intl
€986United Airlines
Tue, 15 Dec - Tue, 22 Dec
British Airways Logo
10:32 - 19:25ONT  Ontario-SNN Shannon
24h 53m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
07:50 - 22:51SNN  Shannon-ONT Ontario
23h 01m2 stops London Heathrow Dallas/Fort Worth
€1,018British Airways
Mon, 4 Jan - Tue, 12 Jan
British Airways Logo
12:51 - 16:45ONT  Ontario-SNN Shannon
19h 54m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
07:50 - 23:13SNN  Shannon-ONT Ontario
23h 23m2 stops London Heathrow Dallas/Fort Worth
€1,112British Airways
Booking Insights

Price, demand, and travel trends for Ontario to Shannon flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Ontario to Shannon?

Return flights from Ontario to Shannon typically range from €596 to €596. The lowest price found in the past 5 days was €662 on United Airlines.

Key details for Ontario to Shannon flights

Cheapest flight

€662
Return flight from Ontario to Shannon

When to book flights from Ontario to Shannon

Are your dates flexible? Find out the best times to travel from Ontario to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Ontario to Shannon flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Do I need a passport to fly from Ontario to Shannon?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Ontario to Shannon changed much recently?

    Yes. Based on fares seen in the past 5 days, return prices on this route varied from about €662 to €1,112. That means the highest observed fare was about 67% higher than the lowest one.

  • Which car hire options are available at Shannon Airport (SNN)?

    Shannon Airport (SNN) hosts 5 major car hire companies, with daily rates starting from around €30 for economy cars. Top options include:

    • Budget
    • Sixt
    • Europcar
    • Easirent
    • Thrifty

  • Which airports can I use when flying from Ontario to Shannon?

    Flights from Ontario to Shannon usually depart from Ontario (ONT) and arrive at Shannon (SNN).

  • Which airports do connecting flights from Ontario to Shannon pass through?

    Most connecting flights from Ontario to Shannon pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route.

  • What is the time difference between Ontario and Shannon?

    Shannon is 8 hours ahead of Ontario (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Ontario to Shannon flights

Get tips on when to book, when to fly, and what to know before your trip.

More options for your flight from Ontario to Shannon

Complete your trip to Shannon with a hotel stay or car hire