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Cheap flights from Shannon, Clare to Portland from €823

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 20/8. 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

Find the cheapest flights from Shannon, Clare to Portland

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
09:30 - 14:34SNN  Shannon-PWM Portland
34h 04m1 stop Chicago O'Hare Intl
United Airlines Logo
07:40 - 07:30PWM  Portland-SNN Shannon
18h 50m1 stop Chicago O'Hare Intl
€823United Airlines
Thu, 20 Aug - Mon, 24 Aug
United Airlines Logo
09:30 - 21:23SNN  Shannon-PWM Portland
16h 53m1 stop Chicago O'Hare Intl
United Airlines Logo
05:15 - 07:30PWM  Portland-SNN Shannon
21h 15m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
€823United Airlines
Thu, 20 Aug - Mon, 24 Aug
United Airlines Logo
09:30 - 23:59SNN  Shannon-PWM Portland
19h 29m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
United Airlines Logo
09:49 - 07:30PWM  Portland-SNN Shannon
16h 41m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
€823United Airlines
Thu, 20 Aug - Mon, 24 Aug
Delta Logo
13:05 - 13:07SNN  Shannon-PWM Portland
29h 02m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson
Delta Logo
06:05 - 11:10PWM  Portland-SNN Shannon
24h 05m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
€959Delta
Mon, 24 Aug - Fri, 28 Aug
Delta Logo
13:05 - 00:59SNN  Shannon-PWM Portland
16h 54m1 stop New York John F Kennedy Intl
Delta Logo
06:05 - 11:10PWM  Portland-SNN Shannon
24h 05m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
€959Delta
Mon, 24 Aug - Fri, 28 Aug
Multiple Airlines Logo
13:05 - 00:59SNN  Shannon-PWM Portland
16h 54m1 stop New York John F Kennedy Intl
Multiple Airlines Logo
14:53 - 11:10PWM  Portland-SNN Shannon
15h 17m1 stop New York John F Kennedy Intl
€959Multiple Airlines
Mon, 24 Aug - Fri, 28 Aug
American Airlines Logo
14:45 - 18:13SNN  Shannon-PWM Portland
32h 28m2 stops Boston Logan Intl Philadelphia
American Airlines Logo
12:36 - 06:20PWM  Portland-SNN Shannon
12h 44m2 stops Philadelphia Boston Logan Intl
€1,126American Airlines
Wed, 2 Dec - Sun, 6 Dec
American Airlines Logo
14:45 - 18:13SNN  Shannon-PWM Portland
32h 28m2 stops Boston Logan Intl Philadelphia
American Airlines Logo
12:36 - 06:20PWM  Portland-SNN Shannon
12h 44m2 stops Philadelphia Boston Logan Intl
€1,127American Airlines
Wed, 2 Dec - Sun, 6 Dec
American Airlines Logo
14:45 - 18:13SNN  Shannon-PWM Portland
32h 28m2 stops Boston Logan Intl Philadelphia
American Airlines Logo
12:36 - 06:20PWM  Portland-SNN Shannon
12h 44m2 stops Philadelphia Boston Logan Intl
€1,128American Airlines
Wed, 2 Dec - Sun, 6 Dec
American Airlines Logo
14:45 - 18:13SNN  Shannon-PWM Portland
32h 28m2 stops Boston Logan Intl Philadelphia
American Airlines Logo
12:36 - 06:20PWM  Portland-SNN Shannon
12h 44m2 stops Philadelphia Boston Logan Intl
€1,129American Airlines
Wed, 2 Dec - Sun, 6 Dec

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United Airlines flights from Shannon, Clare to Portland, Maine

Our best United Airlines deals on Shannon, Clare to Portland, Maine flight tickets
United Airlines
20 Aug
SNN09:30Shannon
19h 29m
2 stops
PWM23:59Portland
24 Aug
PWM09:49Portland
16h 41m
2 stops
SNN07:30Shannon
€823
United Airlines
26 Sept
SNN12:30Shannon
15h 58m
1 stop
PWM23:28Portland
29 Sept
PWM08:03Portland
21h 12m
1 stop
SNN10:15Shannon
€6,587
United Airlines
26 Sept
SNN12:30Shannon
12h 52m
1 stop
PWM20:22Portland
28 Sept
PWM14:32Portland
14h 43m
2 stops
SNN10:15Shannon
€7,974

American Airlines flights from Shannon, Clare to Portland, Maine

Our best American Airlines deals on Shannon, Clare to Portland, Maine flight tickets
American Airlines
2 Dec
SNN14:45Shannon
32h 28m
2 stops
PWM18:13Portland
6 Dec
PWM12:36Portland
12h 44m
2 stops
SNN06:20Shannon
€1,126
American Airlines
2 Dec
SNN14:45Shannon
32h 28m
2 stops
PWM18:13Portland
6 Dec
PWM12:36Portland
12h 44m
2 stops
SNN06:20Shannon
€1,127
American Airlines
2 Dec
SNN14:45Shannon
32h 28m
2 stops
PWM18:13Portland
6 Dec
PWM12:36Portland
12h 44m
2 stops
SNN06:20Shannon
€1,128

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 8 August 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 Shannon - PWM Portland

SNNPWM

Shannon

Thu 20/8

09:30-14:34

1 stop34h 04m

Portland

Mon 24/8

07:40-07:30

1 stop18h 50m

€823

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Thu 20/8

09:30-21:23

1 stop16h 53m

Portland

Mon 24/8

05:15-07:30

2 stops21h 15m

€823

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Thu 20/8

09:30-23:59

2 stops19h 29m

Portland

Mon 24/8

09:49-07:30

2 stops16h 41m

€823

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Mon 24/8

13:05-13:07

2 stops29h 02m

Portland

Fri 28/8

06:05-11:10

2 stops24h 05m

€959

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Mon 24/8

13:05-00:59

1 stop16h 54m

Portland

Fri 28/8

06:05-11:10

2 stops24h 05m

€959
Fastest return journey

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Mon 24/8

13:05-00:59

1 stop16h 54m

Portland

Fri 28/8

14:53-11:10

1 stop15h 17m

€959

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Wed 2/12

14:45-18:13

2 stops32h 28m

Portland

Sun 6/12

12:36-06:20

2 stops12h 44m

€1,126

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Wed 2/12

14:45-18:13

2 stops32h 28m

Portland

Sun 6/12

12:36-06:20

2 stops12h 44m

€1,127

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Wed 2/12

14:45-18:13

2 stops32h 28m

Portland

Sun 6/12

12:36-06:20

2 stops12h 44m

€1,128

ShannonPortland

SNN Shannon - PWM Portland

SNNPWM

Shannon

Wed 2/12

14:45-18:13

2 stops32h 28m

Portland

Sun 6/12

12:36-06:20

2 stops12h 44m

€1,129

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

16h 54m

Direct flights

None
The fastest flight from Shannon, Clare to Portland, Maine takes 16h 54m
There are no direct flights from Shannon, Clare to Portland, Maine. There are no popular flight routes from Shannon, Clare to Portland, Maine.
Search flight deals

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 16h 54m, 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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