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Cheap flights from Ontario to Shannon from €373

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Shannon departing on 17/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Ontario to Shannon

Cheap return flights

United Airlines Logo
09:36 - 10:15ONT-SNN
16h 39m2 stops
United Airlines Logo
12:30 - 21:24SNN-ONT
16h 54m2 stops
€572United Airlines
Find Deal
Sat, 11 Oct - Mon, 20 Oct

United Airlines flights from Ontario to Shannon, Clare

Our best United Airlines deals on Ontario to Shannon, Clare flight tickets
United Airlines
11 Oct
ONT09:36Ontario
16h 39m
2 stops
SNN10:15Shannon
20 Oct
SNN12:30Shannon
16h 54m
2 stops
ONT21:24Ontario
€572
Find similar
United Airlines
17 Sept
ONT07:00Ontario
16h 30m
1 stop
SNN07:30Shannon
21 Sept
SNN09:30Shannon
21h 00m
1 stop
ONT22:30Ontario
€781
Find similar
United Airlines
18 Sept
ONT07:00Ontario
16h 30m
1 stop
SNN07:30Shannon
20 Sept
SNN09:30Shannon
21h 00m
1 stop
ONT22:30Ontario
€9,383
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ontario to Shannon, Clare 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, momondo users made 13,528 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from Ontario to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sat 11/10

09:36-10:15

2 stops16h 39m

Shannon

Mon 20/10

12:30-21:24

2 stops16h 54m

€572

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 17/10

06:00-10:15

2 stops20h 15m

€373

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Ontario to Shannon, Clare

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Shannon?

United Airlines is the most popular carrier operating from Ontario to Shannon

When to book flights from Ontario to Shannon, Clare

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Shannon, Clare according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Ontario to Shannon, Clare (ONT to SNN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Shannon, Clare

Direct flights

None
There are no direct flights from Ontario to Shannon, Clare. There are no popular flight routes from Ontario to Shannon, Clare.
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  • How far is Ontario to Shannon by plane?

    Ontario and Shannon are 8167.8 km apart from one another. By plane, this route typically takes 16h 39m.

  • When did momondo last update prices for flights from Ontario Airport to Shannon Airport?

    Prices for flights from Ontario Airport to Shannon Airport were last updated today.

  • How old do you have to be to fly from Ontario Airport to Shannon Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Shannon Airport.

  • What documentation or ID do you need to fly to Shannon Airport?

    The travel and health documents required for your trip to Shannon Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Shannon Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Ennis
Nenagh
Tipperary
Killaloe
Adare
Lahinch

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Shannon?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Shannon. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Shannon with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Shannon from Ontario with this policy.

How can momondo help me find flights from Ontario to Shannon?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Shannon.

I’m not ready to book a flight from Ontario to Shannon right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Shannon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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