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Cheap flights from Ontario to Shannon from €397

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 8/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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
€620United Airlines
Tue, 1 Sep - Tue, 8 Sep
United Airlines Logo
07:00 - 07:30
ONT
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 20:52
SNN
-
ONT
19h 22m
2 stops
€624United Airlines
Tue, 1 Sep - Tue, 8 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
€665United Airlines
Sun, 20 Sep - Tue, 22 Sep
United Airlines Logo
07:00 - 10:15
ONT
-
SNN
19h 15m
2 stops
United Airlines Logo
09:30 - 21:59
SNN
-
ONT
20h 29m
2 stops
€669United Airlines
Sun, 20 Sep - Tue, 22 Sep
United Airlines Logo
07:00 - 10:15
ONT
-
SNN
19h 15m
2 stops
United Airlines Logo
12:30 - 23:06
SNN
-
ONT
18h 36m
2 stops
€743United Airlines
Wed, 30 Sep - Wed, 14 Oct
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
€758United Airlines
Thu, 13 Aug - Sun, 23 Aug
United Airlines Logo
08:00 - 07:30
ONT
-
SNN
15h 30m
2 stops
United Airlines Logo
09:30 - 18:19
SNN
-
ONT
16h 49m
1 stop
€763United Airlines
Thu, 13 Aug - Sun, 23 Aug
United Airlines Logo
06:30 - 07:30
ONT
-
SNN
17h 00m
1 stop
United Airlines Logo
09:30 - 22:46
SNN
-
ONT
21h 16m
1 stop
€812United Airlines
Thu, 28 May - Thu, 4 Jun
United Airlines Logo
05:45 - 10:15
ONT
-
SNN
20h 30m
2 stops
United Airlines Logo
09:30 - 17:56
SNN
-
ONT
16h 26m
2 stops
€816United Airlines
Fri, 29 May - Fri, 5 Jun
British Airways Logo
12:59 - 20:35
ONT
-
SNN
23h 36m
2 stops
British Airways Logo
21:15 - 17:48
SNN
-
ONT
28h 33m
2 stops
€831British Airways
Tue, 1 Sep - Tue, 8 Sep

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United Airlines flights from Ontario to Shannon, Clare

Our best United Airlines deals on Ontario to Shannon, Clare flight tickets
United Airlines
1 Sept
ONT07:00Ontario
16h 30m
1 stop
SNN07:30Shannon
8 Sept
SNN09:30Shannon
16h 49m
1 stop
ONT18:19Ontario
€620
United Airlines
1 Sept
ONT07:00Ontario
16h 30m
1 stop
SNN07:30Shannon
8 Sept
SNN09:30Shannon
19h 22m
2 stops
ONT20:52Ontario
€624
United Airlines
20 Sept
ONT07:00Ontario
16h 30m
1 stop
SNN07:30Shannon
22 Sept
SNN09:30Shannon
16h 49m
1 stop
ONT18:19Ontario
€665

British Airways flights from Ontario to Shannon, Clare

Our best British Airways deals on Ontario to Shannon, Clare flight tickets
British Airways
1 Sept
ONT12:59Ontario
23h 36m
2 stops
SNN20:35Shannon
8 Sept
SNN21:15Shannon
28h 33m
2 stops
ONT17:48Ontario
€831
British Airways
8 Oct
ONT13:31Ontario
23h 04m
2 stops
SNN20:35Shannon
22 Oct
SNN21:15Shannon
28h 32m
2 stops
ONT17:47Ontario
€895
British Airways
11 Oct
ONT07:20Ontario
20h 00m
2 stops
SNN11:20Shannon
17 Oct
SNN17:25Shannon
33h 32m
2 stops
ONT18:57Ontario
€937

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 18 April 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

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 1/9

07:00-07:30

1 stop16h 30m

Shannon

Tue 8/9

09:30-18:19

1 stop16h 49m

€620

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 1/9

07:00-07:30

1 stop16h 30m

Shannon

Tue 8/9

09:30-20:52

2 stops19h 22m

€624

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sun 20/9

07:00-07:30

1 stop16h 30m

Shannon

Tue 22/9

09:30-18:19

1 stop16h 49m

€665

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sun 20/9

07:00-10:15

2 stops19h 15m

Shannon

Tue 22/9

09:30-21:59

2 stops20h 29m

€669

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Wed 30/9

07:00-10:15

2 stops19h 15m

Shannon

Wed 14/10

12:30-23:06

2 stops18h 36m

€743

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Thu 13/8

07:00-07:30

1 stop16h 30m

Shannon

Sun 23/8

09:30-18:19

1 stop16h 49m

€758
Fastest return journey

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Thu 13/8

08:00-07:30

2 stops15h 30m

Shannon

Sun 23/8

09:30-18:19

1 stop16h 49m

€763

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Thu 28/5

06:30-07:30

1 stop17h 00m

Shannon

Thu 4/6

09:30-22:46

1 stop21h 16m

€812

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 29/5

05:45-10:15

2 stops20h 30m

Shannon

Fri 5/6

09:30-17:56

2 stops16h 26m

€816

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 1/9

12:59-20:35

2 stops23h 36m

Shannon

Tue 8/9

21:15-17:48

2 stops28h 33m

€831

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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?

British Airways, United Airlines, and Lufthansa are the most popular carriers 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

16h 30m

Direct flights

None
The fastest flight from Ontario to Shannon, Clare takes 16h 30m
There are no direct flights from Ontario to Shannon, Clare. There are no popular flight routes from Ontario to Shannon, Clare.
Search flight deals

Frequently asked questions about flying from Ontario to Shannon, Clare

  • 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 30m.

  • 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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