HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Portland (PWM) to Shannon (SNN) from $872

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. 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.
PWM — SNN
May 10 — May 171
From?
To?
Fri 5/10
Fri 5/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Portland to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 5, 2024.

Round-trip from

$533
From Portland to Shannon
Search Deals

What is the cheapest day to fly round-trip from Portland, Maine to Shannon?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 4% on your flight compared to booking on days when demand is much higher.

When is the cheapest time to fly from Portland, Maine to Shannon (PWM - SNN)?

When flying from Portland, Maine to Shannon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap KLM flights from Portland to Shannon

Explore cheap flight options specifically provided by KLM for the route between Portland 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.
Consider these cheap KLM flights we've found departing from Portland to Shannon. Be sure to come back soon if the deals available don't appeal to you at this time.
Thu 9/125:30 pmPWM - SNN
1 stop12h 20mKLM
Fri 9/2012:50 pmSNN - PWM
1 stop15h 48mKLM
Deal found 5/4$872
Mon 7/12:08 pmPWM - SNN
1 stop15h 42mKLM
Thu 7/412:50 pmSNN - PWM
1 stop16h 34mKLM
Deal found 5/5$1,932

Cheap United Airlines flights from Portland to Shannon

Explore cheap flight options specifically provided by United Airlines for the route between Portland 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 United Airlines flights departing from Portland and landing in Shannon. Deals are refreshing constantly so come back soon for more options.
Thu 9/126:00 amPWM - SNN
2 stops20h 30mUnited Airlines
Fri 9/209:30 amSNN - PWM
2 stops19h 29mUnited Airlines
Deal found 5/4$877
Fri 6/286:05 amPWM - SNN
1 stop20h 25mUnited Airlines
Thu 7/49:30 amSNN - PWM
2 stops16h 25mUnited Airlines
Deal found 5/5$1,192
Fri 6/286:05 amPWM - SNN
1 stop20h 25mUnited Airlines
Thu 7/49:30 amSNN - PWM
1 stop33h 48mUnited Airlines
Deal found 5/5$1,197
Sun 6/306:05 amPWM - SNN
1 stop20h 25mUnited Airlines
Thu 7/49:30 amSNN - PWM
2 stops16h 25mUnited Airlines
Deal found 5/5$2,957
Sat 6/294:50 pmPWM - SNN
1 stop33h 40mUnited Airlines
Thu 7/49:30 amSNN - PWM
2 stops19h 23mUnited Airlines
Deal found 5/5$2,968
Sat 6/294:50 pmPWM - SNN
1 stop33h 40mUnited Airlines
Thu 7/49:30 amSNN - PWM
1 stop33h 48mUnited Airlines
Deal found 5/5$2,976

Portland to Shannon 2024 flight deals

Discover exclusive flight deals for travel between Portland 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.
Scroll through some of the best deals on flights from Portland to Shannon in 2024. Check back regularly for other flight deals.
Thu 9/125:30 pmPWM - SNN
1 stop12h 20mKLM
Fri 9/2012:50 pmSNN - PWM
1 stop15h 48mKLM
Deal found 5/4$872
Thu 9/126:00 amPWM - SNN
2 stops20h 30mUnited Airlines
Fri 9/209:30 amSNN - PWM
2 stops19h 29mUnited Airlines
Deal found 5/4$877

Find flights from Portland to Shannon within your budget

Customize your flight search to find flights from Portland 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

$872 - $3,070

Route

Depart

Return

Price

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 9/12

1 stop12h 20m

Shannon

Fri 9/20

1 stop15h 48m

$872

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 9/12

2 stops20h 30m

Shannon

Fri 9/20

2 stops19h 29m

$877

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 6/28

1 stop20h 25m

Shannon

Thu 7/4

2 stops16h 25m

$1,192

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 6/28

1 stop20h 25m

Shannon

Thu 7/4

1 stop33h 48m

$1,197

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 7/1

1 stop15h 42m

Shannon

Thu 7/4

1 stop16h 34m

$1,932

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 7/1

2 stops16h 48m

Shannon

Thu 7/4

1 stop16h 34m

$1,937

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 7/1

3 stops18h 45m

Shannon

Thu 7/4

3 stops31h 20m

$2,167

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 6/30

3 stops19h 19m

Shannon

Thu 7/4

3 stops31h 20m

$2,173

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 6/29

2 stops18h 39m

Shannon

Thu 7/4

2 stops17h 40m

$3,070

Flights are sorted by cheapest first

Deals found on 5/4

When is the cheapest time to fly from Portland, Maine to Shannon?

Use this chart to determine the cheapest time to fly round-trip from Portland to Shannon. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland, Maine to Shannon flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Shannon by month

Plan your trip from Portland to Shannon by taking into account the cheapest months to travel. The average price of a one-way flight from Portland to Shannon is currently $0 while a round-trip flight costs $1,713. Price data was last updated on April 28, 2024.

Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Shannon (average of $533). Flying from Portland, Maine to Shannon in June is currently the most expensive (average of $1,060). 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.

January

$620

February

$533

March

$614

April

$695

May

$838

June

$1,060

July

$1,042

August

$907

September

$815

October

$662

November

$584

December

$649

Temperature and rainfall in Shannon by month

Plan your trip to Shannon by taking into account the average temperature and rainfall totals by month.

SNN

Temperature

42.8 - 60.8 °F

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.
See what other customers who have flown with KLM, United Airlines and Air Canada from Portland to Shannon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,826 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,603 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air Canada
7.0
Good
6,913 reviews
Delta
8.1
Very good
10,826 reviews
Check prices

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Portland 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 Portland, Maine to Shannon for under $900 on Cheapflights?

    Yes, there are multiple flights from Portland, Maine to Shannon for under $900. The cheapest flight booked recently is on KLM for just $872, but on average you can expect to pay $2,291.

  • What are the cheapest airlines flying from Portland, Maine to Shannon round-trip?

    According to our current data, KLM ($872), United Airlines ($877), and Delta ($1,937) offers the cheapest pricing from Portland, Maine to Shannon.

  • What does PWM to SNN mean?

    This is defined as Portland Airport (PWM) and Shannon Airport (SNN). Codes like Shannon Airport are often used to just call airports uniquely.

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

    The amount of baggage you can bring on your Portland 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 Portland to Shannon with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland 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 Portland to Shannon that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland to Shannon that allow pets onboard?

    Many airlines flying from Portland 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 Portland to Shannon?

    Yes, you can often find last-minute deals on Portland 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 Portland, Maine to Shannon flight deals updated?

    The Portland, Maine to Shannon flight deals you see on this page were last updated on 5/4.

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

Bangor to Dublin flights
Portland to Dublin flights

Top airline flying from Portland to Shannon

Discover the top airline that operate flights from Portland to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,074Average$1,410FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
USA to Japan flights
Newark Airport to Miami flights
Chicago to Miami flights
Seattle to Boston flights
San Francisco to Vancouver flights
Houston to London flights
Dallas to Salt Lake City flights
Charlotte to Washington, D.C. flights
USA to Manila flights
Dallas to Dubai flights
Boston to Philadelphia flights
Portland, Maine to South Padre Island flights

Search flights from Portland to Shannon by cabin class

Find flights from Portland 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 Saint Peter Jersey
Flights to Kirkwall Arpt
Flights to Skiathos
Flights to Naxos
Flights to Ningbo Lishe Intl
Flights to Edremit/Korfez
Flights to Bourgas
Flights to Bodø
Flights to Pellston Emmet County
Flights to Cornwall Newquay
Flights to Ordu/Giresun
Flights to Batumi
Flights to Mason City
Flights to Biarritz Parme
Flights to Zakynthos Dionsios Salomos
Flights to Cortez Montezuma County
Flights to Clermont-Ferrand Aulnat
Flights to Nevsehir
Flights to Hyannis Barnstable
Flights to Girona Costa Brava
Flights to Kagoshima
Flights to Perugia Sant Egidio
Flights to Oran Es Senia
Flights to Chios

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 Portland to Shannon?

Cheapflights makes it easy to find Portland 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 Portland to Shannon?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portland to Shannon for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Shannon from Portland? 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 Portland to Shannon become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Shannon from Portland today and book when prices fit your budget.

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