Which airports can I use when flying from Ontario to Shannon?

Flights from Ontario to Shannon usually depart from Ontario (ONT) and arrive at Shannon (SNN).

Which airports do connecting flights from Ontario to Shannon pass through?

Most connecting flights from Ontario to Shannon pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route.

Do I need a passport to fly from Ontario to Shannon?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Ontario to Shannon changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $728 to $3,547. That means the highest observed fare was about 5x higher than the lowest one.

What is the time difference between Ontario and Shannon?

Shannon is 8 hours ahead of Ontario (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Shannon Airport (SNN)?

Shannon Airport (SNN) hosts 5 major car rental companies, with daily rates averaging $33 for economy cars. Top options include: • Budget • Sixt • Europcar • Easirent • Thrifty

How much is a round-trip flight from Ontario to Shannon?

Round-trip flights from Ontario to Shannon typically range from $666 to $666. The lowest price found in the past 5 days was $728, on United Airlines.

Which airline is the cheapest to fly from Ontario to Shannon?

United Airlines ($728) and British Airways ($957) are the cheapest airlines to fly round-trip from Ontario to Shannon according to KAYAK data over the last 5 days.

What is the cheapest layover airport when flying from Ontario to Shannon?

Flights via Chicago O'Hare Intl (ORD) offer the most affordable fares, with an average round-trip price of $630. Based on KAYAK data over the past 3 months.

When flying from Ontario to Shannon which airport offers the shortest layover?

Chicago O'Hare Intl (ORD) had the shortest average connection time for Ontario to Shannon layovers at 12h 31m over the past 3 months.

$739 CHEAP FLIGHTS from Ontario to Shannon (ONT - SNN)

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Cheapest round-trip

$728

Typical prices: $666-$666

United Airlines

Fri 4/27Mon 4/30

ONT - SNN • 3 stops

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Flight Deals

Cheap Flights from Ontario to Shannon (ONT-SNN)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Shannon

Sat, May 1 - Fri, May 7

1:00 pm - 10:15 amONT Ontario-SNN Shannon

37h 15m2 stops Denver Intl Newark

12:30 pm - 12:33 pmSNN Shannon-ONT Ontario

32h 03m2 stops Newark Denver Intl

$739United Airlines

Mon, Apr 5 - Thu, Apr 8

4:25 pm - 4:10 pmONT Ontario-SNN Shannon

15h 45m2 stops Phoenix Sky Harbor Intl London Heathrow

7:30 am - 9:59 pmSNN Shannon-ONT Ontario

22h 29m2 stops London Heathrow Phoenix Sky Harbor Intl

$957British Airways

Mon, Apr 5 - Sun, Apr 11

4:25 pm - 4:10 pmONT Ontario-SNN Shannon

15h 45m2 stops Phoenix Sky Harbor Intl London Heathrow

7:30 am - 9:06 pmSNN Shannon-ONT Ontario

21h 36m2 stops London Heathrow Charlotte Douglas

$1,002British Airways

Sun, Apr 4 - Sun, Apr 11

1:44 pm - 4:10 pmONT Ontario-SNN Shannon

18h 26m2 stops Phoenix Sky Harbor Intl London Heathrow

7:30 am - 9:59 pmSNN Shannon-ONT Ontario

22h 29m2 stops London Heathrow Phoenix Sky Harbor Intl

$1,016British Airways

Wed, Dec 23 - Thu, Dec 31

1:27 pm - 4:45 pmONT Ontario-SNN Shannon

19h 18m2 stops Phoenix Sky Harbor Intl London Heathrow

7:50 am - 10:54 pmSNN Shannon-ONT Ontario

23h 04m2 stops London Heathrow Charlotte Douglas

$1,466British Airways

Mon, Apr 5 - Mon, Apr 12

4:25 pm - 8:35 pmONT Ontario-SNN Shannon

20h 10m2 stops Phoenix Sky Harbor Intl London Heathrow

7:30 am - 9:59 pmSNN Shannon-ONT Ontario

22h 29m2 stops London Heathrow Phoenix Sky Harbor Intl

$2,053British Airways

Thu, Dec 24 - Sun, Jan 3

11:59 pm - 3:45 pmONT Ontario-SNN Shannon

31h 46m2 stops Dallas/Fort Worth London Heathrow

7:50 am - 10:54 pmSNN Shannon-ONT Ontario

23h 04m2 stops London Heathrow Charlotte Douglas

$2,187British Airways

Wed, Dec 23 - Sat, Jan 2

2:22 pm - 4:45 pmONT Ontario-SNN Shannon

18h 23m2 stops Dallas/Fort Worth London Heathrow

7:50 am - 10:22 pmSNN Shannon-ONT Ontario

22h 32m2 stops London Heathrow Dallas/Fort Worth

$2,454British Airways

Booking Insights

Price, demand and travel trends for Ontario to Shannon flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

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Layovers

How much is a round-trip flight from Ontario to Shannon? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Shannon departing in april.

Find deals

Cheapest flight	$728

Round-trip flight from Ontario to Shannon

When to book flights from Ontario to Shannon

Are your dates flexible? Find out the best times to travel from Ontario to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Do I need a passport to fly from Ontario to Shannon?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Ontario to Shannon changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $728 to $3,547. That means the highest observed fare was about 5x higher than the lowest one.
What car rental options are available at Shannon Airport (SNN)?
Shannon Airport (SNN) hosts 5 major car rental companies, with daily rates averaging $33 for economy cars. Top options include:

• Budget
• Sixt
• Europcar
• Easirent
• Thrifty
Which airports can I use when flying from Ontario to Shannon?
Flights from Ontario to Shannon usually depart from Ontario (ONT) and arrive at Shannon (SNN).
Which airports do connecting flights from Ontario to Shannon pass through?
Most connecting flights from Ontario to Shannon pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route.
What is the time difference between Ontario and Shannon?
Shannon is 8 hours ahead of Ontario (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If you're arriving late at night and need somewhere to stay, check out these hotels close to Shannon Airport.

• Treacys Oakwood Hotel
• Park Inn by Radisson Shannon Airport
• Carrygerry Country House

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ONT - SNN

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Everything you should know

Cheap Flights from Ontario to Shannon (ONT-SNN)

Recent round-trip flight deals from Ontario to Shannon

Recent one-way flight deals from Ontario to Shannon

Recent last minute flight deals from Ontario to Shannon

Price, demand and travel trends for Ontario to Shannon flights

How much is a round-trip flight from Ontario to Shannon?

Which airline is the cheapest to fly from Ontario to Shannon?

What is the cheapest layover airport when flying from Ontario to Shannon?

When flying from Ontario to Shannon which airport offers the shortest layover?

Key details for Ontario to Shannon flights

Cheapest flight

When to book flights from Ontario to Shannon

Your Ontario to Shannon flight questions, answered

Your guide to booking Ontario to Shannon flights

More options for your flight from Ontario to Shannon

Complete your trip to Shannon with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Shannon

Find direct flights to and from Ontario and Shannon

Flights from domestic origins to Shannon

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