£48 Cheap Flights from London (LHR) to Shannon (SNN)

You can find one-way and return flights from London (LHR) to Shannon (SNN) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when LHR to SNN ticket fares go up or down.

If you're looking for the cheapest time to fly from London Heathrow (LHR) to Shannon (SNN), October is typically your best bet! You can expect average return fares around £127. October often sees lower prices because it's outside the peak summer travel season, and before the busy Christmas period, meaning less demand and better deals for you. Other budget-friendly months to consider for this route include March and November.

Only one airline offers direct flights from London Heathrow (LHR) to Shannon (SNN).

Aer Lingus operates 20 direct flights from London Heathrow (LHR) to Shannon (SNN) every week.

To find a cheap flight from London (LHR-Heathrow) to Shannon (SNN), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from London Heathrow (LHR) to Shannon (SNN) will differ from traveler to traveler. If you like to fly early, Aer Lingus offers early morning flights. If price is the most important factor, Aer Lingus typically offers the lowest fares. Lufthansa offers the most daily flights from London Heathrow (LHR) to Shannon (SNN), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find approximately 3 nonstop flights per day from London Heathrow (LHR) to Shannon (SNN). For even more choices, look at flights that include layovers, as there are around 14 connecting flights per day. Some common connection points include Franz Josef Strauss Intl. (MUC), Hamburg (HAM), and All Airports (BER).

Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from LHR to SNN. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.

You'll generally find the most flights from London (LHR-Heathrow) to Shannon (SNN) on a Thursday, with around 11 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Aer Lingus, Lufthansa, and Eurowings. Thursdays offer notably more flight options compared to other days of the week, making it a convenient day to fly.

The most popular departure times for flights from London Heathrow (LHR) to Shannon (SNN) are in the evening, from 6pm to 9pm. Many major carriers, including Lufthansa, Aer Lingus and Eurowings, offer flights during this window. Many travellers prefer this timing as it allows for a full day of activities before an evening flight, and you'll arrive in Shannon at a reasonable hour.

A non-stop flight from London Heathrow (LHR) to Shannon (SNN) typically takes around 1 hour 30 minutes. This route covers a distance of approximately 594 kilometers. If you opt for a flight with one stop, your journey will be significantly longer, usually around 19 hours 30 minutes, due to the layover. Flights with two or more stops are even longer, averaging about 24 hours 30 minutes. Keep in mind that actual flight times can vary based on factors like wind patterns and air traffic.

You can fly business class between LHR and SNN. Airlines that offer business class service on this route include:

* Lufthansa
* Med View Airlines
* Eurowings
* Elf Air

It's easy to earn miles on a London (LHR-Heathrow) to Shannon (SNN) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Typically, booking a last minute flight from London (LHR-Heathrow) to Shannon (SNN) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a London (LHR-Heathrow) to Shannon (SNN) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your London (LHR-Heathrow) to Shannon (SNN) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.