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Cheap flights from Shannon, Clare to Portland from €951

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Shannon, Clare to Portland departing on 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Shannon, Clare to Portland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:45 - 23:03
SNN
-
PWM
14h 18m
2 stops
Multiple Airlines Logo
07:20 - 06:00
PWM
-
SNN
17h 40m
1 stop
€951Multiple Airlines
Mon, 4 May - Mon, 11 May
United Airlines Logo
12:30 - 18:23
SNN
-
PWM
10h 53m
1 stop
United Airlines Logo
19:50 - 10:15
PWM
-
SNN
9h 25m
1 stop
€961United Airlines
Mon, 4 May - Mon, 11 May
United Airlines Logo
09:30 - 17:44
SNN
-
PWM
13h 14m
1 stop
United Airlines Logo
05:15 - 07:30
PWM
-
SNN
21h 15m
2 stops
€962United Airlines
Fri, 22 May - Fri, 29 May
United Airlines Logo
12:30 - 14:20
SNN
-
PWM
30h 50m
2 stops
United Airlines Logo
06:04 - 10:15
PWM
-
SNN
23h 11m
2 stops
€996United Airlines
Thu, 23 Apr - Mon, 27 Apr

United Airlines flights from Shannon, Clare to Portland, Maine

Our best United Airlines deals on Shannon, Clare to Portland, Maine flight tickets
United Airlines
4 May
SNN12:30Shannon
10h 53m
1 stop
PWM18:23Portland
11 May
PWM19:50Portland
9h 25m
1 stop
SNN10:15Shannon
€960
United Airlines
22 May
SNN09:30Shannon
13h 14m
1 stop
PWM17:44Portland
29 May
PWM05:15Portland
21h 15m
2 stops
SNN07:30Shannon
€962
United Airlines
23 Apr
SNN12:30Shannon
30h 50m
2 stops
PWM14:20Portland
27 Apr
PWM06:04Portland
23h 11m
2 stops
SNN10:15Shannon
€996

momondo Fare Finder

 
Customise your flight search to find flights from Shannon, Clare to Portland, Maine 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, momondo users made 13,528 searches. Data last updated 9 April 2026.
Use the filters below to find and compare flights from Shannon, Clare to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ShannonPortland

SNN - PWM

SNNPWM

Shannon

Mon 4/5

13:45-23:03

2 stops14h 18m

Portland

Mon 11/5

07:20-06:00

1 stop17h 40m

€951
Fastest return journey

ShannonPortland

SNN - PWM

SNNPWM

Shannon

Mon 4/5

12:30-18:23

1 stop10h 53m

Portland

Mon 11/5

19:50-10:15

1 stop9h 25m

€960

ShannonPortland

SNN - PWM

SNNPWM

Shannon

Fri 22/5

09:30-17:44

1 stop13h 14m

Portland

Fri 29/5

05:15-07:30

2 stops21h 15m

€962

ShannonPortland

SNN - PWM

SNNPWM

Shannon

Thu 23/4

12:30-14:20

2 stops30h 50m

Portland

Mon 27/4

06:04-10:15

2 stops23h 11m

€996

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Shannon, Clare to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Shannon, Clare to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Shannon, Clare to Portland, Maine (SNN to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Shannon, Clare to Portland, Maine

Fastest flight time

13h 14m

Direct flights

None
The fastest flight from Shannon, Clare to Portland, Maine takes 13h 14m
There are no direct flights from Shannon, Clare to Portland, Maine. There are no popular flight routes from Shannon, Clare to Portland, Maine.
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Frequently asked questions about flying from Shannon, Clare to Portland, Maine

  • How far is Shannon to Portland by plane?

    Portland is 4512.9 km away from Shannon. Flights usually cover this in 13h 14m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Shannon Airport to Portland Airport?

    Prices for flights from Shannon Airport to Portland Airport were last updated today.

  • How old do you have to be to fly from Shannon Airport to Portland Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Shannon Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Shannon, Clare to Portland, Maine

  • How do I get Price Alerts for flights from Shannon, Clare to Portland, Maine?

    Search flight deals from Shannon, Clare to Portland, Maine. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Shannon, Clare to Portland, Maine with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Shannon to Portland?

It is quick and easy to find Shannon to Portland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portland that suits you.

Can I find flights from Shannon to Portland with flexible booking policies on momondo?

Flights from Shannon to Portland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Shannon to Portland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portland from Shannon.

I’m not ready to book a flight from Shannon to Portland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Shannon and alert you when they change.

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Sat 9/5
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Aer Lingus