PDX - SNN

$294 Find Cheap Flights from Portland to Shannon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Shannon departing on 5/26. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Shannon, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$489
Delta
Mon 8/24Sun 9/6
PDX - SNN • 1 stop
Cheapest one-way
$258
KLM
Tue 5/26
PDX - SNN • 1 stop
Top airlines
Delta
Cheapest • from $489 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Portland and Shannon. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Newark (EWR)
Cheapest • Avg $744 (round-trip)
London (LHR)
Shortest trip • 12h 40m (one-way)
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Shannon!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Shannon (PDX-SNN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Shannon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Shannon

Mon, Aug 24 - Sun, Sep 6
Delta Logo
7:00 am - 11:10 am
PDX
-
SNN
20h 10m
1 stop
Delta Logo
1:05 pm - 9:35 pm
SNN
-
PDX
16h 30m
1 stop
$489Delta
Mon, Aug 24 - Sun, Sep 6
KLM Logo
7:00 am - 11:10 am
PDX
-
SNN
20h 10m
1 stop
KLM Logo
1:05 pm - 4:21 pm
SNN
-
PDX
35h 16m
2 stops
$493KLM
Fri, Apr 17 - Thu, May 14
United Airlines Logo
5:00 am - 10:15 am
PDX
-
SNN
21h 15m
2 stops
United Airlines Logo
12:30 pm - 9:06 pm
SNN
-
PDX
16h 36m
1 stop
$539United Airlines
Wed, Jul 8 - Wed, Jul 22
United Airlines Logo
5:15 am - 10:15 am
PDX
-
SNN
21h 00m
3 stops
United Airlines Logo
9:30 am - 10:48 pm
SNN
-
PDX
21h 18m
2 stops
$553United Airlines
Wed, Jul 8 - Wed, Jul 22
United Airlines Logo
5:15 am - 10:15 am
PDX
-
SNN
21h 00m
3 stops
United Airlines Logo
9:30 am - 11:53 pm
SNN
-
PDX
22h 23m
1 stop
$573United Airlines
Fri, Apr 17 - Thu, May 14
United Airlines Logo
5:00 am - 10:15 am
PDX
-
SNN
21h 15m
2 stops
United Airlines Logo
12:30 pm - 11:55 pm
SNN
-
PDX
19h 25m
2 stops
$631United Airlines
Wed, Jul 8 - Wed, Jul 22
United Airlines Logo
7:00 am - 7:30 am
PDX
-
SNN
16h 30m
1 stop
United Airlines Logo
9:30 am - 11:53 pm
SNN
-
PDX
22h 23m
1 stop
$637United Airlines
Wed, Jul 8 - Wed, Jul 22
United Airlines Logo
5:15 am - 7:30 am
PDX
-
SNN
18h 15m
2 stops
United Airlines Logo
9:30 am - 10:30 pm
SNN
-
PDX
21h 00m
1 stop
$641United Airlines
Thu, Apr 30 - Thu, May 14
United Airlines Logo
3:59 pm - 10:15 am
PDX
-
SNN
34h 16m
3 stops
United Airlines Logo
12:30 pm - 9:06 pm
SNN
-
PDX
16h 36m
1 stop
$646United Airlines
Wed, Jul 8 - Wed, Jul 22
United Airlines Logo
7:00 am - 7:30 am
PDX
-
SNN
16h 30m
1 stop
United Airlines Logo
9:30 am - 11:53 pm
SNN
-
PDX
22h 23m
1 stop
$657United Airlines
Booking Insights

KAYAK's insights & trends for Portland to Shannon flights

Get data-powered insights and trends into flights from Portland to Shannon to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Portland to Shannon?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Portland to Shannon were found on Delta ($489) and KLM ($493).

Good to know

Cheapest flight$258
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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Shannon

  • How can I get from Shannon Airport to downtown Shannon?

    The public transport available from SNN airport to Shannon city center is the 343 bus, which takes around seven minutes to get you to town. The bus departs every 30 minutes and offers daily services. However, if you need a quick journey, you can take a taxi or a town car to arrive in the city in approximately five minutes.

  • What business or first-class amenities can I expect when flying from Portland to Shannon?

    Most airlines have special amenities for their first-class passengers. If flying with British Airways, you enjoy comfortable and spacious seats, a cotton duvet, a pillow, and a quilted mattress on your 12-hour flight. If flying with Aer Lingus, you can enjoy lie-flat seats, magazines, and dental kits. However, your airline sends you an email after booking so you know what to expect during your flight.

  • Which airlines offer sustainable journeys from Portland to Shannon?

    If you prefer a more eco-friendly journey when booking cheap flights from Portland to Shannon, choose Aer Lingus. These airlines use sustainable aviation fuel (SAF) and aim to achieve zero carbon emissions by 2050. You can also use British Airways, which creates a better sustainable future through Project Speedbird, to reduce carbon emissions.

  • Can I upgrade to first-class flights from Portland to Shannon?

    Some airlines give you an allowance for upgrading your class of ticket when flying from Portland to Shannon. Mostly, your airline sends you an email after you book to offer the opportunity to upgrade, especially if first-class seats are available. This is a great opportunity because the journey from Portland to Shannon is longer, and comfortable first-class seats give you a smooth travel experience.

  • What is the cheapest flight from Portland to Shannon?

    In the last 3 days, the lowest price for a flight from Portland to Shannon was $294 for a one-way ticket and $489 for a round-trip.

  • Do I need a passport to fly between Portland and Shannon?

    A passport is required to fly from Portland to Shannon.

  • Which airports will I be using when flying from Portland to Shannon?

    Portland and Shannon are both served by 1 main airport. You will leave Portland from Portland and will be arriving at Shannon.

  • Which aircraft models fly most regularly from Portland to Shannon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Shannon?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Portland and Shannon, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Portland to Shannon, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Shannon are Delta and United Airlines. With an average price for the route of $594 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $753 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Portland to Shannon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Shannon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Shannon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Shannon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Shannon with an airline and back to Portland with another airline. Booking your flights between Portland and SNN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Shannon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Shannon from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Portland to Shannon

  • Shannon Airport (SNN) serves several nearby cities. Upon arrival, you can visit a few cities, such as Limerick to the southeast, Ennis to the north, Adare to the south, and Gort to the north. These cities have many attractions and new cultures to make your days lively.
  • Most airlines from Portland to Shannon, including British Airways, Aer Lingus, and United Airlines, have layovers in New York. Before booking, check the layover period to book an airline that arrives at your convenience.
  • Portland International Airport (PDX) is a hub for Alaska Airlines, while SNN airport is a hub for Aer Lingus. These airports serve several domestic and international cities, in North American and European countries.
  • One of the most convenient ways to travel from downtown Portland to PDX airport is taking the MAX Red Line tram to arrive in around 39 minutes. Also, you can board a Line 12 or MAX Line bus to get to the airport in approximately 1h 6min. If you need a quick journey, a taxi or rental car gets you to the airport in about 17 minutes.
  • United Airlines is your best choice if you need a special diet when flying with cheap flights from Portland to Shannon. All you need to do is select one of the available special meals and preorder your meal five days before your flight.

Reviews of the top 3 airlines serving from Portland to Shannon

 
See real verified KAYAK customer reviews for airlines flying from Portland to Shannon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Shannon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8237 reviews
7.9Comfort
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

10.0 ExcellentBob, Feb 2026
FLL - MSP
Read more Delta reviews

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Arrived early picked up my bag in a few minutes- great trip - thank you

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Worst experience ever. Flight could not land in Charlotte for what we were told was a ground stop. Had to be diverted to Raleigh to refuel. Strangely during ground stop, our connecting flight had no issue taking off on time causing us to miss our flight. We were told there were no other flights that day to our final destination and that two days out was the next one. The only flights to get us there were from Chicago the next morning. Completely opposite direction but it was a direct flight. So we get flown to Chicago and have to find a hotel in our own dime. The flight in the morning was also delayed. Thankfully only a short time. The non too of all this, our luggage did not arrive by the time we were there. Communication was terrible, through the entire trip. Complete incompetence. Will never fly American again.

Horrible. Got delayed many hours because their pilot wasn't trained for night landing at the airport and a rain delay made it a night landing. We have to wait hours for a qualified crew. They give us 12 dollar meal vouchers but most everything in the airport was closed and definitely more expensive than the vouchers.

I am an AA flyer for a very long time... AA has yet to disappoint.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Everything you need to know for your flight from Portland to Shannon

Information on your arrival and departure airports