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Cheap flights from Portland, Maine to Shannon from $737

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to Shannon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:00 am - 7:30 amPWM  Portland-SNN Shannon
18h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
12:30 pm - 11:32 pmSNN  Shannon-PWM Portland
16h 02m1 stop Newark
$737United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
6:06 am - 7:30 amPWM  Portland-SNN Shannon
20h 24m2 stops Newark Chicago O'Hare Intl
United Airlines Logo
9:30 am - 7:24 pmSNN  Shannon-PWM Portland
14h 54m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
$742United Airlines
Fri, Sep 11 - Tue, Sep 15
Multiple Airlines Logo
6:00 am - 6:00 amPWM  Portland-SNN Shannon
19h 00m1 stop New York John F Kennedy Intl
Multiple Airlines Logo
2:30 pm - 11:54 pmSNN  Shannon-PWM Portland
14h 24m1 stop New York John F Kennedy Intl
$1,003Multiple Airlines
Mon, Sep 21 - Wed, Sep 23
Multiple Airlines Logo
10:18 am - 11:30 amPWM  Portland-SNN Shannon
20h 12m2 stops Washington, D.C. Reagan-National London Heathrow
Multiple Airlines Logo
8:05 pm - 6:13 pmSNN  Shannon-PWM Portland
27h 08m2 stops London Heathrow Philadelphia
$1,063Multiple Airlines
Sat, Nov 21 - Mon, Nov 23
Multiple Airlines Logo
10:18 am - 11:30 amPWM  Portland-SNN Shannon
20h 12m2 stops Washington, D.C. Reagan-National London Heathrow
Multiple Airlines Logo
8:05 pm - 6:13 pmSNN  Shannon-PWM Portland
27h 08m2 stops London Heathrow Philadelphia
$1,063Multiple Airlines
Sat, Nov 21 - Mon, Nov 23
Multiple Airlines Logo
6:00 am - 6:10 amPWM  Portland-SNN Shannon
19h 10m1 stop Newark
Multiple Airlines Logo
8:05 pm - 6:13 pmSNN  Shannon-PWM Portland
27h 08m2 stops London Heathrow Philadelphia
$1,152Multiple Airlines
Sat, Nov 21 - Mon, Nov 23
Multiple Airlines Logo
6:00 am - 6:10 amPWM  Portland-SNN Shannon
19h 10m1 stop Newark
Multiple Airlines Logo
8:05 pm - 6:13 pmSNN  Shannon-PWM Portland
27h 08m2 stops London Heathrow Philadelphia
$1,152Multiple Airlines
Sat, Nov 21 - Mon, Nov 23
Air Canada Logo
3:41 pm - 4:10 pmPWM  Portland-SNN Shannon
19h 29m3 stops Newark Toronto Pearson Intl London Heathrow
Air Canada Logo
7:30 am - 11:28 pmSNN  Shannon-PWM Portland
20h 58m3 stops London Heathrow Montreal Pierre Elliott Trudeau Intl Newark
$1,213Air Canada
Wed, Sep 30 - Sun, Oct 4
Aer Lingus Logo
6:00 am - 6:10 amPWM  Portland-SNN Shannon
19h 10m1 stop Newark
Aer Lingus Logo
2:40 pm - 11:21 pmSNN  Shannon-PWM Portland
13h 41m1 stop New York John F Kennedy Intl
$1,244Aer Lingus
Sat, Nov 21 - Mon, Nov 23
Aer Lingus Logo
6:00 am - 6:10 amPWM  Portland-SNN Shannon
19h 10m1 stop Newark
Aer Lingus Logo
2:40 pm - 11:21 pmSNN  Shannon-PWM Portland
13h 41m1 stop New York John F Kennedy Intl
$1,244Aer Lingus
Sat, Nov 21 - Mon, Nov 23

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United Airlines flights from Portland, Maine to Shannon, Clare

Our best United Airlines deals on Portland, Maine to Shannon, Clare flight tickets
United Airlines
Sep 11
PWM8:00 amPortland
18h 30m
1 stop
SNN7:30 amShannon
Sep 15
SNN12:30 pmShannon
16h 02m
1 stop
PWM11:32 pmPortland
$737
United Airlines
Sep 11
PWM6:06 amPortland
20h 24m
2 stops
SNN7:30 amShannon
Sep 15
SNN9:30 amShannon
14h 54m
2 stops
PWM7:24 pmPortland
$742
United Airlines
Oct 8
PWM6:00 amPortland
23h 15m
1 stop
SNN10:15 amShannon
Oct 14
SNN12:30 pmShannon
15h 58m
1 stop
PWM11:28 pmPortland
$745

Air Canada flights from Portland, Maine to Shannon, Clare

Our best Air Canada deals on Portland, Maine to Shannon, Clare flight tickets
Air Canada
Sep 30
PWM3:41 pmPortland
19h 29m
3 stops
SNN4:10 pmShannon
Oct 4
SNN7:30 amShannon
20h 58m
3 stops
PWM11:28 pmPortland
$1,213
Air Canada
Oct 8
PWM10:43 amPortland
19h 37m
3 stops
SNN11:20 amShannon
Oct 14
SNN7:30 amShannon
20h 58m
3 stops
PWM11:28 pmPortland
$1,382
Air Canada
Oct 8
PWM10:43 amPortland
19h 37m
3 stops
SNN11:20 amShannon
Oct 14
SNN7:30 amShannon
20h 58m
3 stops
PWM11:28 pmPortland
$1,625

momondo Fare Finder

 
Use the filters below to find and compare flights from Portland, Maine to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Fri 9/11

8:00 am-7:30 am

1 stop18h 30m

Shannon

Tue 9/15

12:30 pm-11:32 pm

1 stop16h 02m

$737

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Fri 9/11

6:06 am-7:30 am

2 stops20h 24m

Shannon

Tue 9/15

9:30 am-7:24 pm

2 stops14h 54m

$742

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Mon 9/21

6:00 am-6:00 am

1 stop19h 00m

Shannon

Wed 9/23

2:30 pm-11:54 pm

1 stop14h 24m

$1,003

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Sat 11/21

10:18 am-11:30 am

2 stops20h 12m

Shannon

Mon 11/23

8:05 pm-6:13 pm

2 stops27h 08m

$1,063

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Sat 11/21

10:18 am-11:30 am

2 stops20h 12m

Shannon

Mon 11/23

8:05 pm-6:13 pm

2 stops27h 08m

$1,063

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Sat 11/21

6:00 am-6:10 am

1 stop19h 10m

Shannon

Mon 11/23

8:05 pm-6:13 pm

2 stops27h 08m

$1,152

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Sat 11/21

6:00 am-6:10 am

1 stop19h 10m

Shannon

Mon 11/23

8:05 pm-6:13 pm

2 stops27h 08m

$1,152

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Wed 9/30

3:41 pm-4:10 pm

3 stops19h 29m

Shannon

Sun 10/4

7:30 am-11:28 pm

3 stops20h 58m

$1,213
Quickest round-trip

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Sat 11/21

6:00 am-6:10 am

1 stop19h 10m

Shannon

Mon 11/23

2:40 pm-11:21 pm

1 stop13h 41m

$1,244

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Sat 11/21

6:00 am-6:10 am

1 stop19h 10m

Shannon

Mon 11/23

2:40 pm-11:21 pm

1 stop13h 41m

$1,244

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Shannon from

How to get the cheapest flight ticket from Portland, Maine to Shannon, Clare

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Shannon, Clare?

Aer Lingus, American Airlines and United Airlines are the top three most popular airlines that fly to Shannon, Clare from Portland, Maine according to our data. Aer Lingus is the first choice among our users, with 84% of people opting to fly with this airline when traveling to Shannon, Clare. Keep in mind that there are 8 different airlines that fly to Shannon, Clare on a routine basis, so you have a few additional options to choose from.

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

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

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

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

Best Price Found

$737

Fastest flight time

18h 30m

Direct flights

None
The best flight deal from Portland, Maine to Shannon, Clare found on momondo in the last 72 hours is $737
The fastest flight from Portland, Maine to Shannon, Clare takes 18h 30m
There are no direct flights from Portland, Maine to Shannon, Clare. There are no popular flight routes from Portland, Maine to Shannon, Clare.
Search flight deals

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

  • How far is Portland to Shannon by plane?

    The straight-line distance from Portland to Shannon is 2804.2 mi. A reasonable flight in good conditions will take 18h 30m.

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

    Prices for flights from Portland Airport to Shannon Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Shannon Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Shannon Airport.

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

    The travel and health documents you'll need for your trip to Shannon Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Shannon Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland, Maine to Shannon, Clare?

Best airlines flying from Portland, Maine to Shannon, Clare

Compare and see reviews for airlines that fly from Portland, Maine to Shannon, Clare with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $606Free CancellationRating
7.4
10,123 reviews
Search United Airlines flights

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Ennis
Adare
Bunratty
Lahinch
Tipperary

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Shannon for you.

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

Yes. momondo enables you to select and highlight flights to Shannon from Portland with this policy.

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

momondo helps you find the best flight between Portland and Shannon by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Shannon from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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