HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Ontario (ONT) to Shannon (SNN) from $438

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 9/20. 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
Jun 5 — Jun 121
From?
To?
Wed 6/5
Wed 6/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 $889 for the month, but tickets can be as low as $556. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from ONT to 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.

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 2,784,634 searches. Data last updated May 31, 2024.
Mon 12/212:51 pmONT - SNN
2 stops19h 54mBritish Airways
Thu 12/127:45 amSNN - ONT
2 stops21h 58mBritish Airways
Deal found 5/30$812

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 2,784,634 searches. Data last updated May 31, 2024.
Fri 9/207:40 amONT - SNN
2 stops15h 50mUnited Airlines
Deal found 5/31$438
Wed 11/271:28 pmONT - SNN
2 stops19h 17mBritish Airways
Deal found 5/30$1,017

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 2,784,634 searches. Data last updated May 31, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,784 - $1,784

Route

Depart

Return

Price

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Fri 8/2

2 stops16h 32m

Shannon

Fri 8/9

2 stops19h 08m

$1,784

Flights are sorted by cheapest first

Deals found on 5/31

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

Best time to book a flight from Ontario to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 31, 2024.
United Airlines
7.4
Good
10,763 reviews
Check prices

Food

6.7

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.2

Reviews

1 / 10

Everything was executed efficiently, orderly and with a caring and pleasant manner

United Airlines
7.4
Good
10,763 reviews
United Airlines
7.4
Good
10,763 reviews
Check prices

Food

6.7

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.2

Reviews

1 / 10

Everything was executed efficiently, orderly and with a caring and pleasant manner

British Airways
6.8
Okay
6,758 reviews
United Airlines
7.4
Good
10,763 reviews
Check prices

Food

6.7

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.2

Reviews

1 / 10

Everything was executed efficiently, orderly and with a caring and pleasant manner

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 $1,800 on Cheapflights?

    Yes, there are multiple flights from Ontario to Shannon for under $1,800. The cheapest flight booked recently is on British Airways for just $1,784, but on average you can expect to pay $1,784.

  • 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 5/30.

  • What is the cheapest month to book a flight from Ontario to Shannon?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Shannon (average of $533). Flying from Ontario to Shannon in June is currently the most expensive (average of $1,023). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Shannon
See prices for flight routes from nearby airports that may be better suited for you.

Los Angeles to Dublin flights
San Francisco to Dublin flights
Ontario to Dublin flights
Burbank to Dublin flights
Santa Ana to Dublin flights
San Diego to Dublin flights
San Jose to Dublin flights
Oakland to Dublin flights
Sacramento to Dublin flights
Las Vegas to Dublin flights
Los Angeles to Cork flights
Los Angeles to Shannon flights
San Francisco to Shannon flights
Reno to Dublin flights
San Francisco to Cork flights
San Diego to Shannon flights
Santa Barbara to Dublin flights
Santa Ana to Shannon flights
San Diego to Cork flights
Palm Springs to Dublin flights
Ontario to Cork flights
Sacramento to Shannon flights
San Jose to Shannon flights
Santa Rosa to Dublin flights
Redding to Dublin flights
San Luis Obispo to Dublin flights
Monterey to Dublin flights
Burbank to Shannon flights
San Jose to Cork flights
Reno to Shannon flights
Las Vegas to Shannon flights
Las Vegas to Cork flights
San Francisco to Donegal flights
Medford to Dublin flights
Arcata to Dublin flights
San Francisco to Knock flights
Fresno to Dublin flights
Santa Barbara to Shannon flights
Fresno to Shannon flights
Long Beach to Shannon flights
Ontario to Milltown (Kerry) flights
Long Beach to Dublin flights
San Jose to Knock flights
Los Angeles to Milltown (Kerry) flights
San Francisco to Milltown (Kerry) flights
Oakland to Shannon flights
Philadelphia to Boston flights
San Diego to Dallas flights
Philadelphia to Phoenix flights
Los Angeles to Dubai flights
USA to Scotland flights
Phoenix to Atlanta flights
Seattle to Phoenix flights
Oklahoma City to Las Vegas flights
Boston to Lisbon flights
Los Angeles to San Francisco flights
Boston to Phoenix flights
Ontario to South Padre Island flights

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.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines