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Cheap flights from Ontario to Shannon from €268

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 18/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Ontario to Shannon

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
07:00 - 07:30
ONT
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 18:19
SNN
-
ONT
16h 49m
1 stop
€458United Airlines
Sun, 16 Aug - Thu, 3 Sep
United Airlines Logo
19:13 - 07:30
ONT
-
SNN
28h 17m
2 stops
United Airlines Logo
09:30 - 18:19
SNN
-
ONT
16h 49m
1 stop
€462United Airlines
Sat, 15 Aug - Tue, 1 Sep
United Airlines Logo
07:00 - 07:30
ONT
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 18:19
SNN
-
ONT
16h 49m
1 stop
€491United Airlines
Sun, 16 Aug - Sat, 29 Aug
United Airlines Logo
05:45 - 10:15
ONT
-
SNN
20h 30m
2 stops
United Airlines Logo
12:30 - 21:59
SNN
-
ONT
17h 29m
2 stops
€495United Airlines
Fri, 21 Aug - Wed, 2 Sep
United Airlines Logo
06:05 - 10:15
ONT
-
SNN
20h 10m
2 stops
United Airlines Logo
12:30 - 20:36
SNN
-
ONT
16h 06m
2 stops
€518United Airlines
Wed, 15 Apr - Wed, 22 Apr
United Airlines Logo
07:00 - 07:30
ONT
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 18:19
SNN
-
ONT
16h 49m
1 stop
€524United Airlines
Sat, 15 Aug - Sun, 30 Aug
United Airlines Logo
07:00 - 07:30
ONT
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 18:19
SNN
-
ONT
16h 49m
1 stop
€550United Airlines
Thu, 20 Aug - Fri, 4 Sep
United Airlines Logo
06:05 - 10:15
ONT
-
SNN
20h 10m
2 stops
United Airlines Logo
12:30 - 22:35
SNN
-
ONT
18h 05m
2 stops
€551United Airlines
Tue, 28 Apr - Tue, 12 May
United Airlines Logo
07:00 - 10:15
ONT
-
SNN
19h 15m
2 stops
United Airlines Logo
12:30 - 21:58
SNN
-
ONT
17h 28m
2 stops
€559United Airlines
Sat, 25 Apr - Sat, 9 May
United Airlines Logo
06:05 - 10:15
ONT
-
SNN
20h 10m
2 stops
United Airlines Logo
12:30 - 21:50
SNN
-
ONT
17h 20m
2 stops
€570United Airlines
Fri, 17 Apr - Fri, 24 Apr

United Airlines flights from Ontario to Shannon, Clare

Our best United Airlines deals on Ontario to Shannon, Clare flight tickets
United Airlines
16 Aug
ONT07:00Ontario
16h 30m
1 stop
SNN07:30Shannon
3 Sept
SNN09:30Shannon
16h 49m
1 stop
ONT18:19Ontario
€458
United Airlines
15 Aug
ONT19:13Ontario
28h 17m
2 stops
SNN07:30Shannon
1 Sept
SNN09:30Shannon
16h 49m
1 stop
ONT18:19Ontario
€462
United Airlines
16 Aug
ONT07:00Ontario
16h 30m
1 stop
SNN07:30Shannon
29 Aug
SNN09:30Shannon
16h 49m
1 stop
ONT18:19Ontario
€491

British Airways flights from Ontario to Shannon, Clare

Our best British Airways deals on Ontario to Shannon, Clare flight tickets
British Airways
25 Apr
ONT10:54Ontario
16h 26m
2 stops
SNN11:20Shannon
9 May
SNN07:30Shannon
23h 06m
2 stops
ONT22:36Ontario
€689
British Airways
3 Apr
ONT14:39Ontario
17h 11m
2 stops
SNN15:50Shannon
10 Apr
SNN13:45Shannon
28h 19m
2 stops
ONT10:04Ontario
€720
British Airways
14 May
ONT16:52Ontario
19h 43m
2 stops
SNN20:35Shannon
23 May
SNN07:30Shannon
23h 08m
2 stops
ONT22:38Ontario
€893

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 6 March 2026.
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

Cheapest return flight
Fastest return journey

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sun 16/8

07:00-07:30

1 stop16h 30m

Shannon

Thu 3/9

09:30-18:19

1 stop16h 49m

€458

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sat 15/8

19:13-07:30

2 stops28h 17m

Shannon

Tue 1/9

09:30-18:19

1 stop16h 49m

€462

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sun 16/8

07:00-07:30

1 stop16h 30m

Shannon

Sat 29/8

09:30-18:19

1 stop16h 49m

€491

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 21/8

05:45-10:15

2 stops20h 30m

Shannon

Wed 2/9

12:30-21:59

2 stops17h 29m

€495

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Wed 15/4

06:05-10:15

2 stops20h 10m

Shannon

Wed 22/4

12:30-20:36

2 stops16h 06m

€518

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sat 15/8

07:00-07:30

1 stop16h 30m

Shannon

Sun 30/8

09:30-18:19

1 stop16h 49m

€524

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Thu 20/8

07:00-07:30

1 stop16h 30m

Shannon

Fri 4/9

09:30-18:19

1 stop16h 49m

€550

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 28/4

06:05-10:15

2 stops20h 10m

Shannon

Tue 12/5

12:30-22:35

2 stops18h 05m

€551

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sat 25/4

07:00-10:15

2 stops19h 15m

Shannon

Sat 9/5

12:30-21:58

2 stops17h 28m

€559

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 17/4

06:05-10:15

2 stops20h 10m

Shannon

Fri 24/4

12:30-21:50

2 stops17h 20m

€570

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Shannon from

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

Fastest flight time

15h 32m

Direct flights

None
The fastest flight from Ontario to Shannon, Clare takes 15h 32m
There are no direct flights from Ontario to Shannon, Clare. There are no popular flight routes from Ontario to Shannon, Clare.
Search flight deals

  • 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 15h 32m.

  • 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
Tipperary
Killaloe
Nenagh
Adare
Lahinch
Bunratty

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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