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Cheap flights from Ontario (ONT) to Shannon (SNN) from $443

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 7/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — SNN
May 10 — May 171
From?
To?
Fri 5/10
Fri 5/17
1 adult, Economy
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How far in advance should I book a flight from Ontario to Shannon?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 52 days in advance, which can save you up to 74% on flights from Ontario to Shannon compared to booking the week you need them. Waiting 52 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $731. For sooner than that we have options available in the next 3 days from $971.

What is the cheapest month to fly from Ontario to Shannon?

Our data shows that February tends to be the cheapest month to fly to Shannon from Ontario. Users have commonly found prices around $903 for the month, but tickets can be as low as $556. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Ontario to Shannon (ONT - SNN)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Shannon as you normally would.

Cheap United Airlines flights from Ontario to Shannon

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Shannon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Find some of the cheapest United Airlines flights traveling from Ontario to Shannon. Make sure to check back often as deals are often changing.
Fri 9/65:15 amONT - SNN
2 stops18h 15mUnited Airlines
Sun 9/159:30 amSNN - ONT
2 stops19h 32mUnited Airlines
Deal found 5/5$728
Tue 5/286:00 amONT - SNN
3 stops20h 30mUnited Airlines
Tue 6/119:30 amSNN - ONT
2 stops20h 57mUnited Airlines
Deal found 5/5$845
Tue 5/285:15 amONT - SNN
2 stops21h 15mUnited Airlines
Tue 6/1112:30 pmSNN - ONT
2 stops17h 57mUnited Airlines
Deal found 5/5$847
Wed 7/246:00 amONT - SNN
2 stops17h 30mUnited Airlines
Thu 8/112:30 pmSNN - ONT
2 stops16h 41mUnited Airlines
Deal found 5/4$855
Tue 6/186:00 amONT - SNN
2 stops17h 30mUnited Airlines
Sat 6/299:30 amSNN - ONT
2 stops19h 18mUnited Airlines
Deal found 5/5$1,310
Wed 6/196:00 amONT - SNN
2 stops17h 30mUnited Airlines
Sat 6/299:30 amSNN - ONT
2 stops15h 58mUnited Airlines
Deal found 5/4$1,355
Tue 7/96:20 amONT - SNN
2 stops20h 10mUnited Airlines
Sat 7/1312:30 pmSNN - ONT
2 stops18h 15mUnited Airlines
Deal found 5/4$1,646

Cheap British Airways flights from Ontario to Shannon

Explore cheap flight options specifically provided by British Airways for the route between Ontario and Shannon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Have a look at some of the cheapest available British Airways flights departing from Ontario and landing in Shannon. Check back soon if you're not seeing flights that suit your needs.
Mon 9/3012:40 pmONT - SNN
2 stops19h 30mBritish Airways
Fri 10/117:40 amSNN - ONT
2 stops17h 53mBritish Airways
Deal found 5/4$951
Sat 10/1210:50 amONT - SNN
2 stops16h 30mBritish Airways
Sat 10/267:40 amSNN - ONT
2 stops23h 12mBritish Airways
Deal found 5/4$1,037
Fri 9/272:52 pmONT - SNN
2 stops16h 53mBritish Airways
Sat 10/57:40 amSNN - ONT
2 stops17h 53mBritish Airways
Deal found 5/4$1,144
Wed 6/192:44 pmONT - SNN
2 stops17h 26mBritish Airways
Sat 6/295:30 pmSNN - ONT
2 stops33h 07mBritish Airways
Deal found 5/5$1,380
Wed 8/1412:40 pmONT - SNN
2 stops19h 30mBritish Airways
Thu 9/59:25 pmSNN - ONT
2 stops34h 01mBritish Airways
Deal found 5/5$2,972

Cheap Ontario to Shannon flights in May & June 2024

Find cheap flight options from Ontario to Shannon specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Prices were last updated on May 5, 2024.
These are some of the most attractive deals on flights from Ontario to Shannon in 2024. Check back in a little while for more flight options.
Tue 5/286:00 amONT - SNN
3 stops20h 30mUnited Airlines
Tue 6/119:30 amSNN - ONT
2 stops20h 57mUnited Airlines
Deal found 5/5$845
Tue 5/285:15 amONT - SNN
2 stops21h 15mUnited Airlines
Tue 6/1112:30 pmSNN - ONT
2 stops17h 57mUnited Airlines
Deal found 5/5$847
Tue 6/186:00 amONT - SNN
2 stops17h 30mUnited Airlines
Sat 6/299:30 amSNN - ONT
2 stops19h 18mUnited Airlines
Deal found 5/5$1,310
Thu 6/204:36 pmONT - SNN
2 stops19h 59mAmerican Airlines
Sun 7/77:40 amSNN - ONT
2 stops18h 42mAmerican Airlines
Deal found 5/5$1,350
Wed 6/196:00 amONT - SNN
2 stops17h 30mUnited Airlines
Sat 6/299:30 amSNN - ONT
2 stops15h 58mUnited Airlines
Deal found 5/4$1,355
Wed 6/192:44 pmONT - SNN
2 stops17h 26mBritish Airways
Sat 6/295:30 pmSNN - ONT
2 stops33h 07mBritish Airways
Deal found 5/5$1,380

Ontario to Shannon 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Shannon in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
These are some of the most attractive deals on flights from Ontario to Shannon in 2024. Check back in a little while for more flight options.
Fri 9/65:15 amONT - SNN
2 stops18h 15mUnited Airlines
Sun 9/159:30 amSNN - ONT
2 stops19h 32mUnited Airlines
Deal found 5/5$728
Tue 5/286:00 amONT - SNN
3 stops20h 30mUnited Airlines
Tue 6/119:30 amSNN - ONT
2 stops20h 57mUnited Airlines
Deal found 5/5$845
Tue 5/285:15 amONT - SNN
2 stops21h 15mUnited Airlines
Tue 6/1112:30 pmSNN - ONT
2 stops17h 57mUnited Airlines
Deal found 5/5$847
Wed 7/246:00 amONT - SNN
2 stops17h 30mUnited Airlines
Thu 8/112:30 pmSNN - ONT
2 stops16h 41mUnited Airlines
Deal found 5/4$855
Mon 9/3012:40 pmONT - SNN
2 stops19h 30mBritish Airways
Fri 10/117:40 amSNN - ONT
2 stops17h 53mBritish Airways
Deal found 5/4$951
Sat 10/1210:50 amONT - SNN
2 stops16h 30mBritish Airways
Sat 10/267:40 amSNN - ONT
2 stops23h 12mBritish Airways
Deal found 5/4$1,037
Fri 9/272:52 pmONT - SNN
2 stops16h 53mBritish Airways
Sat 10/57:40 amSNN - ONT
2 stops17h 53mBritish Airways
Deal found 5/4$1,144
Tue 6/186:00 amONT - SNN
2 stops17h 30mUnited Airlines
Sat 6/299:30 amSNN - ONT
2 stops19h 18mUnited Airlines
Deal found 5/5$1,310
Thu 6/204:36 pmONT - SNN
2 stops19h 59mAmerican Airlines
Sun 7/77:40 amSNN - ONT
2 stops18h 42mAmerican Airlines
Deal found 5/5$1,350

One-way flights to Shannon from Ontario

Search for one-way flight options from Ontario to Shannon. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
Some of the best available deals we've found on one-way flights from Ontario to Shannon. Users in need of a round-trip flight from Ontario to Shannon instead should update the search form at the top of page.
Wed 7/176:00 amONT - SNN
2 stops17h 30mUnited Airlines
Deal found 5/5$443
Sun 6/305:35 amONT - SNN
2 stops21h 15mDelta
Deal found 5/4$688

Find flights from Ontario to Shannon within your budget

Customize your flight search to find flights from Ontario 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 2,719,943 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$728 - $1,380

Route

Depart

Return

Price

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 9/6

2 stops18h 15m

Shannon

Sun 9/15

2 stops19h 32m

$728

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 5/28

3 stops20h 30m

Shannon

Tue 6/11

2 stops20h 57m

$845

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 5/28

2 stops21h 15m

Shannon

Tue 6/11

2 stops17h 57m

$847

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Wed 7/24

2 stops17h 30m

Shannon

Thu 8/1

2 stops16h 41m

$855

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Mon 9/30

2 stops19h 30m

Shannon

Fri 10/11

2 stops17h 53m

$951

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sat 10/12

2 stops16h 30m

Shannon

Sat 10/26

2 stops23h 12m

$1,037

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 9/27

2 stops16h 53m

Shannon

Sat 10/5

2 stops17h 53m

$1,144

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Thu 6/20

2 stops19h 59m

Shannon

Sun 7/7

2 stops18h 42m

$1,350

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Wed 6/19

2 stops17h 26m

Shannon

Sat 6/29

2 stops33h 07m

$1,380

Flights are sorted by cheapest first

Deals found on 5/5

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated May 5, 2024.
To help decide which airline to fly from Ontario to Shannon, see what other customers have to say about United Airlines and British Airways. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.1
Very good
10,826 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

United Airlines
7.4
Good
11,118 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

American Airlines
7.3
Good
14,713 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

British Airways
6.8
Okay
6,874 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario 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 flights from Ontario to Shannon for under $800 on Cheapflights?

    Yes, there are multiple flights from Ontario to Shannon for under $800. The cheapest flight booked recently is on United Airlines for just $728, but on average you can expect to pay $1,263.

  • What does ONT to SNN mean?

    ONT stands for Ontario Airport, while SNN stands for Shannon Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Ontario to Shannon that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Shannon flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Shannon with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Shannon flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario 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.

  • Can I find deals for flights from Ontario to Shannon that allow pets onboard?

    Many airlines flying from Ontario to Shannon offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Shannon?

    Yes, you can often find last-minute deals on Ontario to Shannon flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Shannon flight deals updated?

    The Ontario to Shannon flight deals you see on this page were last updated on 5/5.

See more FAQs

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Search flights from Ontario to Shannon by cabin class

Find flights from Ontario to Shannon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Shannon?

Cheapflights makes it easy to find Ontario to Shannon flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Shannon?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Shannon from Ontario.

Can Cheapflights find flights from Ontario to Shannon with no change fees?

Need flexible booking options for your flight to Shannon from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Shannon become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to Shannon on Cheapflights with our Price Alert feature and get notified when better prices are available.

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