PWM - SNN

€859 Find Cheap Flights from Portland to Shannon – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
€859
Typical prices: €580-€922
British Airways
Fri 30/11Fri 7/12
PWM - SNN • 2 stops
Top stopover airports
New York John F Kennedy Intl (JFK)
Cheapest • Avg €434 (return)
Newark (EWR)
Shortest trip • 10h 21m (one-way)
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Cheap Flights from Portland to Shannon (PWM-SNN)

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

Recent return flight deals from Portland to Shannon

Mon, 30 Nov - Mon, 7 Dec
Multiple Airlines Logo
10:27 - 11:30PWM  Portland-SNN Shannon
20h 03m2 stops Philadelphia London Heathrow
Multiple Airlines Logo
20:05 - 18:14SNN  Shannon-PWM Portland
27h 09m2 stops London Heathrow Philadelphia
€859Multiple Airlines
3+ days ago
Sun, 1 Nov - Fri, 13 Nov
British Airways Logo
18:47 - 16:45PWM  Portland-SNN Shannon
40h 58m2 stops Philadelphia London Heathrow
British Airways Logo
14:00 - 09:34SNN  Shannon-PWM Portland
24h 34m2 stops Boston Logan Intl Washington, D.C. Reagan-National
€991British Airways
3+ days ago
Sun, 1 Nov - Fri, 13 Nov
Multiple Airlines Logo
06:30 - 05:50PWM  Portland-SNN Shannon
42h 20m2 stops New York John F Kennedy Intl Boston Logan Intl
Multiple Airlines Logo
14:40 - 23:43SNN  Shannon-PWM Portland
14h 03m1 stop New York John F Kennedy Intl
€1,315Multiple Airlines
3+ days ago
Mon, 30 Nov - Mon, 7 Dec
Air Canada Logo
10:50 - 11:30PWM  Portland-SNN Shannon
19h 40m3 stops Newark Toronto Pearson Intl London Heathrow
Air Canada Logo
07:50 - 09:05SNN  Shannon-PWM Portland
30h 15m3 stops London Heathrow Montreal Pierre Elliott Trudeau Intl Newark
€1,702Air Canada
3+ days ago
Sun, 1 Nov - Fri, 13 Nov
Multiple Airlines Logo
05:50 - 06:10PWM  Portland-SNN Shannon
19h 20m1 stop Newark
Multiple Airlines Logo
14:40 - 23:43SNN  Shannon-PWM Portland
14h 03m1 stop New York John F Kennedy Intl
€1,728Multiple Airlines
3+ days ago
Booking Insights

Price, demand, and travel trends for Portland to Shannon flights

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

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

British Airways (€991) and Air Canada (€1,702) are the cheapest airlines to fly return from Portland to Shannon according to KAYAK data over the last 5 days.

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Key details for Portland to Shannon flights

Cheapest flight

€859
Round-trip flight from Portland to Shannon

When to book flights from Portland to Shannon

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

Your Portland to Shannon flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long is a flight from Portland to Shannon?

    There are currently no direct flights available from Portland to Shannon. Flights with 1 stopover take between 10h 21m and 15h 44m in total, depending on the connection.

  • Do I need a passport to fly from Portland 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.

  • How much should I expect to pay for a Portland to Shannon flight?

    Return flights from Portland to Shannon range from €580 to €922, with an average of €741 over the past 12 months. Anything below €580 counts as a good deal.

  • Have flight prices from Portland to Shannon changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about €859 to €1,728. That means the highest observed fare was about 2x higher than the lowest one.

  • Which car hire options are available at Shannon Airport (SNN)?

    Shannon Airport (SNN) hosts 5 major car hire companies, with daily rates starting from around €3 for economy cars. Top options include:

    • Budget
    • Sixt
    • Europcar
    • Easirent
    • Thrifty

  • Which airports can I use when flying from Portland to Shannon?

    Flights from Portland to Shannon usually depart from Portland (PWM) and arrive at Shannon (SNN).

  • Which airports do connecting flights from Portland to Shannon pass through?

    Connecting flights from Portland to Shannon most commonly pass through:

    • Newark (EWR) – 93% of one-stop connections
    • New York John F Kennedy Intl (JFK) – 7% of one-stop connections

  • Can I save money by using flexible dates for flights from Portland to Shannon?

    Yes. Flexible dates can save you up to 41% on flights from Portland to Shannon. Tuesday is the cheapest departure day at €580 return on average, while Saturday is the most expensive at €969, a difference of €389.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Portland to Shannon?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time of 10h 21m, compared to 15h 44m via New York John F Kennedy Intl (JFK).

  • What is the time difference between Portland and Shannon?

    Shannon is 5 hours ahead of Portland (Irish Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Portland to Shannon flights

Get tips on when to book, when to fly, and what to know before your trip.

More options for your flight from Portland to Shannon

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

Car hire in Shannon
Hotels in Shannon
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